mercurial/manifest.c
author Augie Fackler <augie@google.com>
Sun, 17 May 2015 21:12:33 -0400
changeset 25157 a8d22895a575
parent 24975 89c2bf63a83b
child 27340 7b8b6e3b3571
permissions -rw-r--r--
run-tests: introduce PYTHON3 boolean constant (issue4668) This will avoid open-coding lots of version_info checks later in the file.
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/*
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 * manifest.c - manifest type that does on-demand parsing.
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 *
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 * Copyright 2015, Google Inc.
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 *
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 * This software may be used and distributed according to the terms of
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 * the GNU General Public License, incorporated herein by reference.
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 */
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#include <Python.h>
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#include <assert.h>
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#include <string.h>
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#include <stdlib.h>
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#include "util.h"
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#define DEFAULT_LINES 100000
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typedef struct {
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	char *start;
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	Py_ssize_t len; /* length of line including terminal newline */
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	char hash_suffix;
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	bool from_malloc;
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	bool deleted;
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} line;
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typedef struct {
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	PyObject_HEAD
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	PyObject *pydata;
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	line *lines;
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	int numlines; /* number of line entries */
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	int livelines; /* number of non-deleted lines */
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	int maxlines; /* allocated number of lines */
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	bool dirty;
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} lazymanifest;
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#define MANIFEST_OOM -1
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#define MANIFEST_NOT_SORTED -2
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#define MANIFEST_MALFORMED -3
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/* defined in parsers.c */
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PyObject *unhexlify(const char *str, int len);
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/* get the length of the path for a line */
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static size_t pathlen(line *l) {
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	return strlen(l->start);
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}
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/* get the node value of a single line */
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static PyObject *nodeof(line *l) {
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	char *s = l->start;
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	ssize_t llen = pathlen(l);
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	PyObject *hash = unhexlify(s + llen + 1, 40);
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	if (!hash) {
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		return NULL;
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	}
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	if (l->hash_suffix != '\0') {
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		char newhash[21];
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		memcpy(newhash, PyString_AsString(hash), 20);
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		Py_DECREF(hash);
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		newhash[20] = l->hash_suffix;
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		hash = PyString_FromStringAndSize(newhash, 21);
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	}
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	return hash;
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}
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/* get the node hash and flags of a line as a tuple */
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static PyObject *hashflags(line *l)
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{
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	char *s = l->start;
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	size_t plen = pathlen(l);
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	PyObject *hash = nodeof(l);
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	/* 40 for hash, 1 for null byte, 1 for newline */
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	size_t hplen = plen + 42;
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	Py_ssize_t flen = l->len - hplen;
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	PyObject *flags;
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	PyObject *tup;
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	if (!hash)
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		return NULL;
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	flags = PyString_FromStringAndSize(s + hplen - 1, flen);
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	if (!flags) {
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		Py_DECREF(hash);
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		return NULL;
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	}
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	tup = PyTuple_Pack(2, hash, flags);
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	Py_DECREF(flags);
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	Py_DECREF(hash);
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	return tup;
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}
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/* if we're about to run out of space in the line index, add more */
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static bool realloc_if_full(lazymanifest *self)
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{
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	if (self->numlines == self->maxlines) {
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		self->maxlines *= 2;
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		self->lines = realloc(self->lines, self->maxlines * sizeof(line));
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	}
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	return !!self->lines;
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}
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/*
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 * Find the line boundaries in the manifest that 'data' points to and store
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 * information about each line in 'self'.
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 */
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static int find_lines(lazymanifest *self, char *data, Py_ssize_t len)
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{
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	char *prev = NULL;
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	while (len > 0) {
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		line *l;
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		char *next = memchr(data, '\n', len);
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		if (!next) {
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			return MANIFEST_MALFORMED;
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		}
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		next++; /* advance past newline */
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		if (!realloc_if_full(self)) {
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			return MANIFEST_OOM; /* no memory */
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		}
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		if (prev && strcmp(prev, data) > -1) {
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			/* This data isn't sorted, so we have to abort. */
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			return MANIFEST_NOT_SORTED;
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		}
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		l = self->lines + ((self->numlines)++);
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		l->start = data;
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		l->len = next - data;
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		l->hash_suffix = '\0';
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		l->from_malloc = false;
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		l->deleted = false;
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		len = len - l->len;
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   131
		prev = data;
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   132
		data = next;
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   133
	}
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   134
	self->livelines = self->numlines;
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   135
	return 0;
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   136
}
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   137
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   138
static int lazymanifest_init(lazymanifest *self, PyObject *args)
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   139
{
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   140
	char *data;
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   141
	Py_ssize_t len;
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   142
	int err, ret;
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   143
	PyObject *pydata;
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   144
	if (!PyArg_ParseTuple(args, "S", &pydata)) {
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   145
		return -1;
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   146
	}
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   147
	err = PyString_AsStringAndSize(pydata, &data, &len);
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   148
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   149
	self->dirty = false;
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   150
	if (err == -1)
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   151
		return -1;
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   152
	self->pydata = pydata;
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	Py_INCREF(self->pydata);
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   154
	Py_BEGIN_ALLOW_THREADS
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   155
	self->lines = malloc(DEFAULT_LINES * sizeof(line));
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	self->maxlines = DEFAULT_LINES;
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   157
	self->numlines = 0;
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   158
	if (!self->lines)
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		ret = MANIFEST_OOM;
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   160
	else
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		ret = find_lines(self, data, len);
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   162
	Py_END_ALLOW_THREADS
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   163
	switch (ret) {
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   164
	case 0:
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   165
		break;
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   166
	case MANIFEST_OOM:
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		PyErr_NoMemory();
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   168
		break;
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   169
	case MANIFEST_NOT_SORTED:
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		PyErr_Format(PyExc_ValueError,
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   171
			     "Manifest lines not in sorted order.");
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		break;
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   173
	case MANIFEST_MALFORMED:
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   174
		PyErr_Format(PyExc_ValueError,
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   175
			     "Manifest did not end in a newline.");
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   176
		break;
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   177
	default:
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   178
		PyErr_Format(PyExc_ValueError,
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   179
			     "Unknown problem parsing manifest.");
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   180
	}
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   181
	return ret == 0 ? 0 : -1;
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   182
}
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   183
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
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   184
static void lazymanifest_dealloc(lazymanifest *self)
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   185
{
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   186
	/* free any extra lines we had to allocate */
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   187
	int i;
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diff changeset
   188
	for (i = 0; i < self->numlines; i++) {
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   189
		if (self->lines[i].from_malloc) {
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   190
			free(self->lines[i].start);
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diff changeset
   191
		}
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diff changeset
   192
	}
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
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diff changeset
   193
	if (self->lines) {
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
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diff changeset
   194
		free(self->lines);
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
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diff changeset
   195
		self->lines = NULL;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
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diff changeset
   196
	}
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
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diff changeset
   197
	if (self->pydata) {
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
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diff changeset
   198
		Py_DECREF(self->pydata);
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
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diff changeset
   199
		self->pydata = NULL;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
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diff changeset
   200
	}
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
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diff changeset
   201
	PyObject_Del(self);
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   202
}
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   203
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   204
/* iteration support */
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
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diff changeset
   205
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
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diff changeset
   206
typedef struct {
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
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   207
	PyObject_HEAD lazymanifest *m;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   208
	Py_ssize_t pos;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   209
} lmIter;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   210
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   211
static void lmiter_dealloc(PyObject *o)
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   212
{
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
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diff changeset
   213
	lmIter *self = (lmIter *)o;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   214
	Py_DECREF(self->m);
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   215
	PyObject_Del(self);
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   216
}
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   217
24294
3d485727e45e lazymanifest: extract function for iterating to next line
Martin von Zweigbergk <martinvonz@google.com>
parents: 24293
diff changeset
   218
static line *lmiter_nextline(lmIter *self)
3d485727e45e lazymanifest: extract function for iterating to next line
Martin von Zweigbergk <martinvonz@google.com>
parents: 24293
diff changeset
   219
{
3d485727e45e lazymanifest: extract function for iterating to next line
Martin von Zweigbergk <martinvonz@google.com>
parents: 24293
diff changeset
   220
	do {
3d485727e45e lazymanifest: extract function for iterating to next line
Martin von Zweigbergk <martinvonz@google.com>
parents: 24293
diff changeset
   221
		self->pos++;
3d485727e45e lazymanifest: extract function for iterating to next line
Martin von Zweigbergk <martinvonz@google.com>
parents: 24293
diff changeset
   222
		if (self->pos >= self->m->numlines) {
3d485727e45e lazymanifest: extract function for iterating to next line
Martin von Zweigbergk <martinvonz@google.com>
parents: 24293
diff changeset
   223
			return NULL;
3d485727e45e lazymanifest: extract function for iterating to next line
Martin von Zweigbergk <martinvonz@google.com>
parents: 24293
diff changeset
   224
		}
3d485727e45e lazymanifest: extract function for iterating to next line
Martin von Zweigbergk <martinvonz@google.com>
parents: 24293
diff changeset
   225
		/* skip over deleted manifest entries */
3d485727e45e lazymanifest: extract function for iterating to next line
Martin von Zweigbergk <martinvonz@google.com>
parents: 24293
diff changeset
   226
	} while (self->m->lines[self->pos].deleted);
3d485727e45e lazymanifest: extract function for iterating to next line
Martin von Zweigbergk <martinvonz@google.com>
parents: 24293
diff changeset
   227
	return self->m->lines + self->pos;
3d485727e45e lazymanifest: extract function for iterating to next line
Martin von Zweigbergk <martinvonz@google.com>
parents: 24293
diff changeset
   228
}
3d485727e45e lazymanifest: extract function for iterating to next line
Martin von Zweigbergk <martinvonz@google.com>
parents: 24293
diff changeset
   229
24298
49cd847fd69a lazymanifest: make __iter__ generate filenames, not 3-tuples
Martin von Zweigbergk <martinvonz@google.com>
parents: 24295
diff changeset
   230
static PyObject *lmiter_iterentriesnext(PyObject *o)
24214
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   231
{
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
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diff changeset
   232
	size_t pl;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   233
	line *l;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   234
	Py_ssize_t consumed;
24699
64cd23a1bc13 lazymanifest: fix memory leak in lmiter_iterentriesnext() after 3d485727e45e
Mike Hommey <mh@glandium.org>
parents: 24442
diff changeset
   235
	PyObject *ret = NULL, *path = NULL, *hash = NULL, *flags = NULL;
24294
3d485727e45e lazymanifest: extract function for iterating to next line
Martin von Zweigbergk <martinvonz@google.com>
parents: 24293
diff changeset
   236
	l = lmiter_nextline((lmIter *)o);
3d485727e45e lazymanifest: extract function for iterating to next line
Martin von Zweigbergk <martinvonz@google.com>
parents: 24293
diff changeset
   237
	if (!l) {
24974
46408b80c3a1 lazymanifest: avoid 'bail' label when used on success path
Martin von Zweigbergk <martinvonz@google.com>
parents: 24710
diff changeset
   238
		goto done;
24294
3d485727e45e lazymanifest: extract function for iterating to next line
Martin von Zweigbergk <martinvonz@google.com>
parents: 24293
diff changeset
   239
	}
24214
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   240
	pl = pathlen(l);
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   241
	path = PyString_FromStringAndSize(l->start, pl);
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   242
	hash = nodeof(l);
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   243
	consumed = pl + 41;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   244
	flags = PyString_FromStringAndSize(l->start + consumed,
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   245
									   l->len - consumed - 1);
24293
30e9ee203846 lazymanifest: fail if path or hash strings cannot be created
Martin von Zweigbergk <martinvonz@google.com>
parents: 24286
diff changeset
   246
	if (!path || !hash || !flags) {
24974
46408b80c3a1 lazymanifest: avoid 'bail' label when used on success path
Martin von Zweigbergk <martinvonz@google.com>
parents: 24710
diff changeset
   247
		goto done;
24214
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   248
	}
24699
64cd23a1bc13 lazymanifest: fix memory leak in lmiter_iterentriesnext() after 3d485727e45e
Mike Hommey <mh@glandium.org>
parents: 24442
diff changeset
   249
	ret = PyTuple_Pack(3, path, hash, flags);
24975
89c2bf63a83b lazymanifest: drop SP before some labels
Martin von Zweigbergk <martinvonz@google.com>
parents: 24974
diff changeset
   250
done:
24214
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   251
	Py_XDECREF(path);
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
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parents:
diff changeset
   252
	Py_XDECREF(hash);
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   253
	Py_XDECREF(flags);
24699
64cd23a1bc13 lazymanifest: fix memory leak in lmiter_iterentriesnext() after 3d485727e45e
Mike Hommey <mh@glandium.org>
parents: 24442
diff changeset
   254
	return ret;
24214
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   255
}
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   256
24298
49cd847fd69a lazymanifest: make __iter__ generate filenames, not 3-tuples
Martin von Zweigbergk <martinvonz@google.com>
parents: 24295
diff changeset
   257
static PyTypeObject lazymanifestEntriesIterator = {
24214
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   258
	PyObject_HEAD_INIT(NULL)
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	0,                               /*ob_size */
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	"parsers.lazymanifest.entriesiterator", /*tp_name */
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	sizeof(lmIter),                  /*tp_basicsize */
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	0,                               /*tp_itemsize */
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	lmiter_dealloc,                  /*tp_dealloc */
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	0,                               /*tp_print */
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	0,                               /*tp_getattr */
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	0,                               /*tp_setattr */
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	0,                               /*tp_compare */
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	0,                               /*tp_repr */
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	0,                               /*tp_as_number */
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	0,                               /*tp_as_sequence */
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	0,                               /*tp_as_mapping */
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	0,                               /*tp_hash */
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	0,                               /*tp_call */
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	0,                               /*tp_str */
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	0,                               /*tp_getattro */
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	0,                               /*tp_setattro */
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	0,                               /*tp_as_buffer */
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	/* tp_flags: Py_TPFLAGS_HAVE_ITER tells python to
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	   use tp_iter and tp_iternext fields. */
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	Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_ITER,
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	"Iterator for 3-tuples in a lazymanifest.",  /* tp_doc */
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	0,                               /* tp_traverse */
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	0,                               /* tp_clear */
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	0,                               /* tp_richcompare */
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	0,                               /* tp_weaklistoffset */
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	PyObject_SelfIter,               /* tp_iter: __iter__() method */
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	lmiter_iterentriesnext,          /* tp_iternext: next() method */
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};
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static PyObject *lmiter_iterkeysnext(PyObject *o)
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{
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	size_t pl;
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	line *l = lmiter_nextline((lmIter *)o);
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	if (!l) {
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		return NULL;
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	}
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	pl = pathlen(l);
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	return PyString_FromStringAndSize(l->start, pl);
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}
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static PyTypeObject lazymanifestKeysIterator = {
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	PyObject_HEAD_INIT(NULL)
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	0,                               /*ob_size */
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	"parsers.lazymanifest.keysiterator", /*tp_name */
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	sizeof(lmIter),                  /*tp_basicsize */
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	0,                               /*tp_itemsize */
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	lmiter_dealloc,                  /*tp_dealloc */
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	0,                               /*tp_print */
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	0,                               /*tp_getattr */
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	0,                               /*tp_setattr */
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	0,                               /*tp_compare */
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	0,                               /*tp_repr */
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	0,                               /*tp_as_number */
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	0,                               /*tp_as_sequence */
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	0,                               /*tp_as_mapping */
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	0,                               /*tp_hash */
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	0,                               /*tp_call */
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	0,                               /*tp_str */
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	0,                               /*tp_getattro */
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	0,                               /*tp_setattro */
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	0,                               /*tp_as_buffer */
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	/* tp_flags: Py_TPFLAGS_HAVE_ITER tells python to
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	   use tp_iter and tp_iternext fields. */
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	Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_ITER,
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	"Keys iterator for a lazymanifest.",  /* tp_doc */
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	0,                               /* tp_traverse */
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	0,                               /* tp_clear */
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	0,                               /* tp_richcompare */
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	0,                               /* tp_weaklistoffset */
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	PyObject_SelfIter,               /* tp_iter: __iter__() method */
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	lmiter_iterkeysnext,             /* tp_iternext: next() method */
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};
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static lazymanifest *lazymanifest_copy(lazymanifest *self);
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static PyObject *lazymanifest_getentriesiter(lazymanifest *self)
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{
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	lmIter *i = NULL;
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	lazymanifest *t = lazymanifest_copy(self);
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	if (!t) {
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		PyErr_NoMemory();
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		return NULL;
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	}
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	i = PyObject_New(lmIter, &lazymanifestEntriesIterator);
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	if (i) {
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		i->m = t;
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		i->pos = -1;
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	} else {
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		Py_DECREF(t);
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		PyErr_NoMemory();
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	}
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	return (PyObject *)i;
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}
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static PyObject *lazymanifest_getkeysiter(lazymanifest *self)
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{
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	lmIter *i = NULL;
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	lazymanifest *t = lazymanifest_copy(self);
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	if (!t) {
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		PyErr_NoMemory();
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		return NULL;
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	}
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	i = PyObject_New(lmIter, &lazymanifestKeysIterator);
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	if (i) {
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		i->m = t;
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		i->pos = -1;
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	} else {
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		Py_DECREF(t);
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		PyErr_NoMemory();
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	}
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	return (PyObject *)i;
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}
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/* __getitem__ and __setitem__ support */
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static Py_ssize_t lazymanifest_size(lazymanifest *self)
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{
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	return self->livelines;
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}
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static int linecmp(const void *left, const void *right)
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{
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	return strcmp(((const line *)left)->start,
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		      ((const line *)right)->start);
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diff changeset
   385
}
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   386
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   387
static PyObject *lazymanifest_getitem(lazymanifest *self, PyObject *key)
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   388
{
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   389
	line needle;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   390
	line *hit;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   391
	if (!PyString_Check(key)) {
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   392
		PyErr_Format(PyExc_TypeError,
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   393
			     "getitem: manifest keys must be a string.");
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   394
		return NULL;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   395
	}
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   396
	needle.start = PyString_AsString(key);
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   397
	hit = bsearch(&needle, self->lines, self->numlines, sizeof(line),
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   398
		      &linecmp);
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   399
	if (!hit || hit->deleted) {
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   400
		PyErr_Format(PyExc_KeyError, "No such manifest entry.");
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   401
		return NULL;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   402
	}
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   403
	return hashflags(hit);
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   404
}
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   405
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   406
static int lazymanifest_delitem(lazymanifest *self, PyObject *key)
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   407
{
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   408
	line needle;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   409
	line *hit;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   410
	if (!PyString_Check(key)) {
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   411
		PyErr_Format(PyExc_TypeError,
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   412
			     "delitem: manifest keys must be a string.");
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   413
		return -1;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   414
	}
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   415
	needle.start = PyString_AsString(key);
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   416
	hit = bsearch(&needle, self->lines, self->numlines, sizeof(line),
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   417
		      &linecmp);
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   418
	if (!hit || hit->deleted) {
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   419
		PyErr_Format(PyExc_KeyError,
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   420
			     "Tried to delete nonexistent manifest entry.");
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   421
		return -1;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   422
	}
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   423
	self->dirty = true;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   424
	hit->deleted = true;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   425
	self->livelines--;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   426
	return 0;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   427
}
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   428
24228
542c891274b2 lazymanifest: use a binary search to do an insertion
Augie Fackler <augie@google.com>
parents: 24214
diff changeset
   429
/* Do a binary search for the insertion point for new, creating the
542c891274b2 lazymanifest: use a binary search to do an insertion
Augie Fackler <augie@google.com>
parents: 24214
diff changeset
   430
 * new entry if needed. */
542c891274b2 lazymanifest: use a binary search to do an insertion
Augie Fackler <augie@google.com>
parents: 24214
diff changeset
   431
static int internalsetitem(lazymanifest *self, line *new) {
542c891274b2 lazymanifest: use a binary search to do an insertion
Augie Fackler <augie@google.com>
parents: 24214
diff changeset
   432
	int start = 0, end = self->numlines;
542c891274b2 lazymanifest: use a binary search to do an insertion
Augie Fackler <augie@google.com>
parents: 24214
diff changeset
   433
	while (start < end) {
542c891274b2 lazymanifest: use a binary search to do an insertion
Augie Fackler <augie@google.com>
parents: 24214
diff changeset
   434
		int pos = start + (end - start) / 2;
542c891274b2 lazymanifest: use a binary search to do an insertion
Augie Fackler <augie@google.com>
parents: 24214
diff changeset
   435
		int c = linecmp(new, self->lines + pos);
542c891274b2 lazymanifest: use a binary search to do an insertion
Augie Fackler <augie@google.com>
parents: 24214
diff changeset
   436
		if (c < 0)
542c891274b2 lazymanifest: use a binary search to do an insertion
Augie Fackler <augie@google.com>
parents: 24214
diff changeset
   437
			end = pos;
542c891274b2 lazymanifest: use a binary search to do an insertion
Augie Fackler <augie@google.com>
parents: 24214
diff changeset
   438
		else if (c > 0)
542c891274b2 lazymanifest: use a binary search to do an insertion
Augie Fackler <augie@google.com>
parents: 24214
diff changeset
   439
			start = pos + 1;
542c891274b2 lazymanifest: use a binary search to do an insertion
Augie Fackler <augie@google.com>
parents: 24214
diff changeset
   440
		else {
542c891274b2 lazymanifest: use a binary search to do an insertion
Augie Fackler <augie@google.com>
parents: 24214
diff changeset
   441
			if (self->lines[pos].deleted)
542c891274b2 lazymanifest: use a binary search to do an insertion
Augie Fackler <augie@google.com>
parents: 24214
diff changeset
   442
				self->livelines++;
24710
909ee6b2a024 lazymanifest: prevent leak when updating an entry more than once
Augie Fackler <augie@google.com>
parents: 24699
diff changeset
   443
			if (self->lines[pos].from_malloc)
909ee6b2a024 lazymanifest: prevent leak when updating an entry more than once
Augie Fackler <augie@google.com>
parents: 24699
diff changeset
   444
				free(self->lines[pos].start);
24228
542c891274b2 lazymanifest: use a binary search to do an insertion
Augie Fackler <augie@google.com>
parents: 24214
diff changeset
   445
			start = pos;
542c891274b2 lazymanifest: use a binary search to do an insertion
Augie Fackler <augie@google.com>
parents: 24214
diff changeset
   446
			goto finish;
542c891274b2 lazymanifest: use a binary search to do an insertion
Augie Fackler <augie@google.com>
parents: 24214
diff changeset
   447
		}
542c891274b2 lazymanifest: use a binary search to do an insertion
Augie Fackler <augie@google.com>
parents: 24214
diff changeset
   448
	}
542c891274b2 lazymanifest: use a binary search to do an insertion
Augie Fackler <augie@google.com>
parents: 24214
diff changeset
   449
	/* being here means we need to do an insert */
542c891274b2 lazymanifest: use a binary search to do an insertion
Augie Fackler <augie@google.com>
parents: 24214
diff changeset
   450
	if (!realloc_if_full(self)) {
542c891274b2 lazymanifest: use a binary search to do an insertion
Augie Fackler <augie@google.com>
parents: 24214
diff changeset
   451
		PyErr_NoMemory();
542c891274b2 lazymanifest: use a binary search to do an insertion
Augie Fackler <augie@google.com>
parents: 24214
diff changeset
   452
		return -1;
542c891274b2 lazymanifest: use a binary search to do an insertion
Augie Fackler <augie@google.com>
parents: 24214
diff changeset
   453
	}
542c891274b2 lazymanifest: use a binary search to do an insertion
Augie Fackler <augie@google.com>
parents: 24214
diff changeset
   454
	memmove(self->lines + start + 1, self->lines + start,
542c891274b2 lazymanifest: use a binary search to do an insertion
Augie Fackler <augie@google.com>
parents: 24214
diff changeset
   455
		(self->numlines - start) * sizeof(line));
542c891274b2 lazymanifest: use a binary search to do an insertion
Augie Fackler <augie@google.com>
parents: 24214
diff changeset
   456
	self->numlines++;
542c891274b2 lazymanifest: use a binary search to do an insertion
Augie Fackler <augie@google.com>
parents: 24214
diff changeset
   457
	self->livelines++;
542c891274b2 lazymanifest: use a binary search to do an insertion
Augie Fackler <augie@google.com>
parents: 24214
diff changeset
   458
finish:
542c891274b2 lazymanifest: use a binary search to do an insertion
Augie Fackler <augie@google.com>
parents: 24214
diff changeset
   459
	self->lines[start] = *new;
542c891274b2 lazymanifest: use a binary search to do an insertion
Augie Fackler <augie@google.com>
parents: 24214
diff changeset
   460
	self->dirty = true;
542c891274b2 lazymanifest: use a binary search to do an insertion
Augie Fackler <augie@google.com>
parents: 24214
diff changeset
   461
	return 0;
542c891274b2 lazymanifest: use a binary search to do an insertion
Augie Fackler <augie@google.com>
parents: 24214
diff changeset
   462
}
542c891274b2 lazymanifest: use a binary search to do an insertion
Augie Fackler <augie@google.com>
parents: 24214
diff changeset
   463
24214
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   464
static int lazymanifest_setitem(
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   465
	lazymanifest *self, PyObject *key, PyObject *value)
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   466
{
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   467
	char *path;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   468
	Py_ssize_t plen;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   469
	PyObject *pyhash;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   470
	Py_ssize_t hlen;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   471
	char *hash;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   472
	PyObject *pyflags;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   473
	char *flags;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   474
	Py_ssize_t flen;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   475
	size_t dlen;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   476
	char *dest;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   477
	int i;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   478
	line new;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   479
	if (!PyString_Check(key)) {
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   480
		PyErr_Format(PyExc_TypeError,
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   481
			     "setitem: manifest keys must be a string.");
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   482
		return -1;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   483
	}
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   484
	if (!value) {
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   485
		return lazymanifest_delitem(self, key);
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   486
	}
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   487
	if (!PyTuple_Check(value) || PyTuple_Size(value) != 2) {
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   488
		PyErr_Format(PyExc_TypeError,
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   489
			     "Manifest values must be a tuple of (node, flags).");
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   490
		return -1;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   491
	}
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   492
	if (PyString_AsStringAndSize(key, &path, &plen) == -1) {
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   493
		return -1;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   494
	}
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   495
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   496
	pyhash = PyTuple_GetItem(value, 0);
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   497
	if (!PyString_Check(pyhash)) {
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   498
		PyErr_Format(PyExc_TypeError,
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   499
			     "node must be a 20-byte string");
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   500
		return -1;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   501
	}
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   502
	hlen = PyString_Size(pyhash);
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   503
	/* Some parts of the codebase try and set 21 or 22
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   504
	 * byte "hash" values in order to perturb things for
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   505
	 * status. We have to preserve at least the 21st
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   506
	 * byte. Sigh. If there's a 22nd byte, we drop it on
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   507
	 * the floor, which works fine.
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   508
	 */
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   509
	if (hlen != 20 && hlen != 21 && hlen != 22) {
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   510
		PyErr_Format(PyExc_TypeError,
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   511
			     "node must be a 20-byte string");
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   512
		return -1;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   513
	}
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   514
	hash = PyString_AsString(pyhash);
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   515
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   516
	pyflags = PyTuple_GetItem(value, 1);
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   517
	if (!PyString_Check(pyflags) || PyString_Size(pyflags) > 1) {
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   518
		PyErr_Format(PyExc_TypeError,
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   519
			     "flags must a 0 or 1 byte string");
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   520
		return -1;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   521
	}
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   522
	if (PyString_AsStringAndSize(pyflags, &flags, &flen) == -1) {
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   523
		return -1;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   524
	}
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   525
	/* one null byte and one newline */
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   526
	dlen = plen + 41 + flen + 1;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   527
	dest = malloc(dlen);
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   528
	if (!dest) {
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   529
		PyErr_NoMemory();
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   530
		return -1;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   531
	}
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   532
	memcpy(dest, path, plen + 1);
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   533
	for (i = 0; i < 20; i++) {
24286
40528ad1b1e8 lazymanifest: don't depend on printf's 'hh' format to work
Martin von Zweigbergk <martinvonz@google.com>
parents: 24228
diff changeset
   534
		/* Cast to unsigned, so it will not get sign-extended when promoted
40528ad1b1e8 lazymanifest: don't depend on printf's 'hh' format to work
Martin von Zweigbergk <martinvonz@google.com>
parents: 24228
diff changeset
   535
		 * to int (as is done when passing to a variadic function)
40528ad1b1e8 lazymanifest: don't depend on printf's 'hh' format to work
Martin von Zweigbergk <martinvonz@google.com>
parents: 24228
diff changeset
   536
		 */
40528ad1b1e8 lazymanifest: don't depend on printf's 'hh' format to work
Martin von Zweigbergk <martinvonz@google.com>
parents: 24228
diff changeset
   537
		sprintf(dest + plen + 1 + (i * 2), "%02x", (unsigned char)hash[i]);
24214
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   538
	}
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   539
	memcpy(dest + plen + 41, flags, flen);
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   540
	dest[plen + 41 + flen] = '\n';
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   541
	new.start = dest;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   542
	new.len = dlen;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   543
	new.hash_suffix = '\0';
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   544
	if (hlen > 20) {
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   545
		new.hash_suffix = hash[20];
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   546
	}
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   547
	new.from_malloc = true;     /* is `start` a pointer we allocated? */
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   548
	new.deleted = false;        /* is this entry deleted? */
24228
542c891274b2 lazymanifest: use a binary search to do an insertion
Augie Fackler <augie@google.com>
parents: 24214
diff changeset
   549
	if (internalsetitem(self, &new)) {
542c891274b2 lazymanifest: use a binary search to do an insertion
Augie Fackler <augie@google.com>
parents: 24214
diff changeset
   550
		return -1;
24214
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   551
	}
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   552
	return 0;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   553
}
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   554
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   555
static PyMappingMethods lazymanifest_mapping_methods = {
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   556
	(lenfunc)lazymanifest_size,             /* mp_length */
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   557
	(binaryfunc)lazymanifest_getitem,       /* mp_subscript */
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   558
	(objobjargproc)lazymanifest_setitem,    /* mp_ass_subscript */
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   559
};
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   560
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   561
/* sequence methods (important or __contains__ builds an iterator */
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   562
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   563
static int lazymanifest_contains(lazymanifest *self, PyObject *key)
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   564
{
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   565
	line needle;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   566
	line *hit;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   567
	if (!PyString_Check(key)) {
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   568
		/* Our keys are always strings, so if the contains
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   569
		 * check is for a non-string, just return false. */
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   570
		return 0;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   571
	}
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   572
	needle.start = PyString_AsString(key);
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   573
	hit = bsearch(&needle, self->lines, self->numlines, sizeof(line),
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   574
		      &linecmp);
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   575
	if (!hit || hit->deleted) {
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   576
		return 0;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   577
	}
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   578
	return 1;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   579
}
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   580
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   581
static PySequenceMethods lazymanifest_seq_meths = {
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   582
	(lenfunc)lazymanifest_size, /* sq_length */
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   583
	0, /* sq_concat */
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   584
	0, /* sq_repeat */
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   585
	0, /* sq_item */
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   586
	0, /* sq_slice */
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   587
	0, /* sq_ass_item */
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   588
	0, /* sq_ass_slice */
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   589
	(objobjproc)lazymanifest_contains, /* sq_contains */
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   590
	0, /* sq_inplace_concat */
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   591
	0, /* sq_inplace_repeat */
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   592
};
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   593
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   594
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   595
/* Other methods (copy, diff, etc) */
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   596
static PyTypeObject lazymanifestType;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   597
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   598
/* If the manifest has changes, build the new manifest text and reindex it. */
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   599
static int compact(lazymanifest *self) {
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   600
	int i;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   601
	ssize_t need = 0;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   602
	char *data;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   603
	line *src, *dst;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   604
	PyObject *pydata;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   605
	if (!self->dirty)
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   606
		return 0;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   607
	for (i = 0; i < self->numlines; i++) {
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   608
		if (!self->lines[i].deleted) {
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   609
			need += self->lines[i].len;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   610
		}
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   611
	}
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   612
	pydata = PyString_FromStringAndSize(NULL, need);
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   613
	if (!pydata)
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   614
		return -1;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   615
	data = PyString_AsString(pydata);
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   616
	if (!data) {
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   617
		return -1;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   618
	}
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   619
	src = self->lines;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   620
	dst = self->lines;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   621
	for (i = 0; i < self->numlines; i++, src++) {
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   622
		char *tofree = NULL;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   623
		if (src->from_malloc) {
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   624
			tofree = src->start;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   625
		}
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   626
		if (!src->deleted) {
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   627
			memcpy(data, src->start, src->len);
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   628
			*dst = *src;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   629
			dst->start = data;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   630
			dst->from_malloc = false;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   631
			data += dst->len;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   632
			dst++;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   633
		}
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   634
		free(tofree);
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   635
	}
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   636
	Py_DECREF(self->pydata);
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   637
	self->pydata = pydata;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   638
	self->numlines = self->livelines;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   639
	self->dirty = false;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   640
	return 0;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   641
}
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   642
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   643
static PyObject *lazymanifest_text(lazymanifest *self)
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   644
{
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   645
	if (compact(self) != 0) {
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   646
		PyErr_NoMemory();
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   647
		return NULL;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   648
	}
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   649
	Py_INCREF(self->pydata);
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   650
	return self->pydata;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   651
}
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   652
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   653
static lazymanifest *lazymanifest_copy(lazymanifest *self)
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   654
{
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   655
	lazymanifest *copy = NULL;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   656
	if (compact(self) != 0) {
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   657
		goto nomem;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   658
	}
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   659
	copy = PyObject_New(lazymanifest, &lazymanifestType);
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   660
	if (!copy) {
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   661
		goto nomem;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   662
	}
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   663
	copy->numlines = self->numlines;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   664
	copy->livelines = self->livelines;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   665
	copy->dirty = false;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   666
	copy->lines = malloc(self->maxlines *sizeof(line));
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   667
	if (!copy->lines) {
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   668
		goto nomem;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   669
	}
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   670
	memcpy(copy->lines, self->lines, self->numlines * sizeof(line));
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   671
	copy->maxlines = self->maxlines;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   672
	copy->pydata = self->pydata;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   673
	Py_INCREF(copy->pydata);
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   674
	return copy;
24975
89c2bf63a83b lazymanifest: drop SP before some labels
Martin von Zweigbergk <martinvonz@google.com>
parents: 24974
diff changeset
   675
nomem:
24214
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   676
	PyErr_NoMemory();
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   677
	Py_XDECREF(copy);
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   678
	return NULL;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   679
}
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   680
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   681
static lazymanifest *lazymanifest_filtercopy(
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   682
	lazymanifest *self, PyObject *matchfn)
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   683
{
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   684
	lazymanifest *copy = NULL;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   685
	int i;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   686
	if (!PyCallable_Check(matchfn)) {
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   687
		PyErr_SetString(PyExc_TypeError, "matchfn must be callable");
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   688
		return NULL;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   689
	}
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   690
	/* compact ourselves first to avoid double-frees later when we
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   691
	 * compact tmp so that it doesn't have random pointers to our
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   692
	 * underlying from_malloc-data (self->pydata is safe) */
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   693
	if (compact(self) != 0) {
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   694
		goto nomem;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   695
	}
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   696
	copy = PyObject_New(lazymanifest, &lazymanifestType);
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   697
	copy->dirty = true;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   698
	copy->lines = malloc(self->maxlines * sizeof(line));
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   699
	if (!copy->lines) {
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   700
		goto nomem;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   701
	}
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   702
	copy->maxlines = self->maxlines;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   703
	copy->numlines = 0;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   704
	copy->pydata = self->pydata;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   705
	Py_INCREF(self->pydata);
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   706
	for (i = 0; i < self->numlines; i++) {
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   707
		PyObject *arg = PyString_FromString(self->lines[i].start);
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   708
		PyObject *arglist = PyTuple_Pack(1, arg);
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   709
		PyObject *result = PyObject_CallObject(matchfn, arglist);
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   710
		Py_DECREF(arglist);
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   711
		Py_DECREF(arg);
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   712
		/* if the callback raised an exception, just let it
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   713
		 * through and give up */
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   714
		if (!result) {
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   715
			free(copy->lines);
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   716
			Py_DECREF(self->pydata);
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   717
			return NULL;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   718
		}
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   719
		if (PyObject_IsTrue(result)) {
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   720
			assert(!(self->lines[i].from_malloc));
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   721
			copy->lines[copy->numlines++] = self->lines[i];
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   722
		}
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   723
		Py_DECREF(result);
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   724
	}
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   725
	copy->livelines = copy->numlines;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   726
	return copy;
24975
89c2bf63a83b lazymanifest: drop SP before some labels
Martin von Zweigbergk <martinvonz@google.com>
parents: 24974
diff changeset
   727
nomem:
24214
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   728
	PyErr_NoMemory();
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   729
	Py_XDECREF(copy);
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   730
	return NULL;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   731
}
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   732
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   733
static PyObject *lazymanifest_diff(lazymanifest *self, PyObject *args)
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   734
{
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   735
	lazymanifest *other;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   736
	PyObject *pyclean = NULL;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   737
	bool listclean;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   738
	PyObject *emptyTup = NULL, *ret = NULL;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   739
	PyObject *es;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   740
	int sneedle = 0, oneedle = 0;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   741
	if (!PyArg_ParseTuple(args, "O!|O", &lazymanifestType, &other, &pyclean)) {
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   742
		return NULL;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   743
	}
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   744
	listclean = (!pyclean) ? false : PyObject_IsTrue(pyclean);
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   745
	es = PyString_FromString("");
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   746
	if (!es) {
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   747
		goto nomem;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   748
	}
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   749
	emptyTup = PyTuple_Pack(2, Py_None, es);
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   750
	Py_DECREF(es);
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   751
	if (!emptyTup) {
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   752
		goto nomem;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   753
	}
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   754
	ret = PyDict_New();
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   755
	if (!ret) {
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   756
		goto nomem;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   757
	}
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   758
	while (sneedle != self->numlines || oneedle != other->numlines) {
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   759
		line *left = self->lines + sneedle;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   760
		line *right = other->lines + oneedle;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   761
		int result;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   762
		PyObject *key;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   763
		PyObject *outer;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   764
		/* If we're looking at a deleted entry and it's not
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   765
		 * the end of the manifest, just skip it. */
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   766
		if (left->deleted && sneedle < self->numlines) {
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   767
			sneedle++;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   768
			continue;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   769
		}
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   770
		if (right->deleted && oneedle < other->numlines) {
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   771
			oneedle++;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   772
			continue;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   773
		}
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   774
		/* if we're at the end of either manifest, then we
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   775
		 * know the remaining items are adds so we can skip
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   776
		 * the strcmp. */
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   777
		if (sneedle == self->numlines) {
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   778
			result = 1;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   779
		} else if (oneedle == other->numlines) {
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   780
			result = -1;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   781
		} else {
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   782
			result = linecmp(left, right);
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   783
		}
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   784
		key = result <= 0 ?
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   785
			PyString_FromString(left->start) :
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   786
			PyString_FromString(right->start);
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   787
		if (!key)
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   788
			goto nomem;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   789
		if (result < 0) {
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   790
			PyObject *l = hashflags(left);
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   791
			if (!l) {
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   792
				goto nomem;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   793
			}
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   794
			outer = PyTuple_Pack(2, l, emptyTup);
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   795
			Py_DECREF(l);
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   796
			if (!outer) {
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   797
				goto nomem;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   798
			}
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   799
			PyDict_SetItem(ret, key, outer);
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   800
			Py_DECREF(outer);
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   801
			sneedle++;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   802
		} else if (result > 0) {
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   803
			PyObject *r = hashflags(right);
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   804
			if (!r) {
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   805
				goto nomem;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   806
			}
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   807
			outer = PyTuple_Pack(2, emptyTup, r);
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   808
			Py_DECREF(r);
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   809
			if (!outer) {
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   810
				goto nomem;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   811
			}
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   812
			PyDict_SetItem(ret, key, outer);
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   813
			Py_DECREF(outer);
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   814
			oneedle++;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   815
		} else {
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   816
			/* file exists in both manifests */
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   817
			if (left->len != right->len
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   818
			    || memcmp(left->start, right->start, left->len)
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   819
			    || left->hash_suffix != right->hash_suffix) {
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   820
				PyObject *l = hashflags(left);
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   821
				PyObject *r;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   822
				if (!l) {
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   823
					goto nomem;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   824
				}
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   825
				r = hashflags(right);
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   826
				if (!r) {
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   827
					Py_DECREF(l);
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   828
					goto nomem;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   829
				}
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   830
				outer = PyTuple_Pack(2, l, r);
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   831
				Py_DECREF(l);
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   832
				Py_DECREF(r);
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   833
				if (!outer) {
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   834
					goto nomem;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   835
				}
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   836
				PyDict_SetItem(ret, key, outer);
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   837
				Py_DECREF(outer);
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   838
			} else if (listclean) {
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   839
				PyDict_SetItem(ret, key, Py_None);
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   840
			}
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   841
			sneedle++;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   842
			oneedle++;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   843
		}
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   844
		Py_DECREF(key);
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   845
	}
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   846
	Py_DECREF(emptyTup);
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   847
	return ret;
24975
89c2bf63a83b lazymanifest: drop SP before some labels
Martin von Zweigbergk <martinvonz@google.com>
parents: 24974
diff changeset
   848
nomem:
24214
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   849
	PyErr_NoMemory();
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   850
	Py_XDECREF(ret);
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   851
	Py_XDECREF(emptyTup);
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   852
	return NULL;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   853
}
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   854
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   855
static PyMethodDef lazymanifest_methods[] = {
24295
2b7ab29627fd lazymanifest: add iterkeys() method
Martin von Zweigbergk <martinvonz@google.com>
parents: 24294
diff changeset
   856
	{"iterkeys", (PyCFunction)lazymanifest_getkeysiter, METH_NOARGS,
2b7ab29627fd lazymanifest: add iterkeys() method
Martin von Zweigbergk <martinvonz@google.com>
parents: 24294
diff changeset
   857
	 "Iterate over file names in this lazymanifest."},
24298
49cd847fd69a lazymanifest: make __iter__ generate filenames, not 3-tuples
Martin von Zweigbergk <martinvonz@google.com>
parents: 24295
diff changeset
   858
	{"iterentries", (PyCFunction)lazymanifest_getentriesiter, METH_NOARGS,
49cd847fd69a lazymanifest: make __iter__ generate filenames, not 3-tuples
Martin von Zweigbergk <martinvonz@google.com>
parents: 24295
diff changeset
   859
	 "Iterate over (path, nodeid, flags) typles in this lazymanifest."},
24214
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   860
	{"copy", (PyCFunction)lazymanifest_copy, METH_NOARGS,
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   861
	 "Make a copy of this lazymanifest."},
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   862
	{"filtercopy", (PyCFunction)lazymanifest_filtercopy, METH_O,
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   863
	 "Make a copy of this manifest filtered by matchfn."},
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   864
	{"diff", (PyCFunction)lazymanifest_diff, METH_VARARGS,
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   865
	 "Compare this lazymanifest to another one."},
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   866
	{"text", (PyCFunction)lazymanifest_text, METH_NOARGS,
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   867
	 "Encode this manifest to text."},
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   868
	{NULL},
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   869
};
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   870
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   871
static PyTypeObject lazymanifestType = {
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   872
	PyObject_HEAD_INIT(NULL)
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   873
	0,                                                /* ob_size */
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   874
	"parsers.lazymanifest",                           /* tp_name */
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   875
	sizeof(lazymanifest),                             /* tp_basicsize */
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   876
	0,                                                /* tp_itemsize */
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   877
	(destructor)lazymanifest_dealloc,                 /* tp_dealloc */
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   878
	0,                                                /* tp_print */
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   879
	0,                                                /* tp_getattr */
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   880
	0,                                                /* tp_setattr */
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   881
	0,                                                /* tp_compare */
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   882
	0,                                                /* tp_repr */
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   883
	0,                                                /* tp_as_number */
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   884
	&lazymanifest_seq_meths,                          /* tp_as_sequence */
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   885
	&lazymanifest_mapping_methods,                    /* tp_as_mapping */
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   886
	0,                                                /* tp_hash */
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   887
	0,                                                /* tp_call */
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   888
	0,                                                /* tp_str */
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   889
	0,                                                /* tp_getattro */
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   890
	0,                                                /* tp_setattro */
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   891
	0,                                                /* tp_as_buffer */
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   892
	Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_SEQUENCE_IN, /* tp_flags */
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   893
	"TODO(augie)",                                    /* tp_doc */
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   894
	0,                                                /* tp_traverse */
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   895
	0,                                                /* tp_clear */
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   896
	0,                                                /* tp_richcompare */
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   897
	0,                                             /* tp_weaklistoffset */
24298
49cd847fd69a lazymanifest: make __iter__ generate filenames, not 3-tuples
Martin von Zweigbergk <martinvonz@google.com>
parents: 24295
diff changeset
   898
	(getiterfunc)lazymanifest_getkeysiter,                /* tp_iter */
24214
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   899
	0,                                                /* tp_iternext */
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   900
	lazymanifest_methods,                             /* tp_methods */
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   901
	0,                                                /* tp_members */
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   902
	0,                                                /* tp_getset */
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   903
	0,                                                /* tp_base */
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   904
	0,                                                /* tp_dict */
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   905
	0,                                                /* tp_descr_get */
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   906
	0,                                                /* tp_descr_set */
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   907
	0,                                                /* tp_dictoffset */
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   908
	(initproc)lazymanifest_init,                      /* tp_init */
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   909
	0,                                                /* tp_alloc */
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   910
};
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   911
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   912
void manifest_module_init(PyObject * mod)
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   913
{
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   914
	lazymanifestType.tp_new = PyType_GenericNew;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   915
	if (PyType_Ready(&lazymanifestType) < 0)
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   916
		return;
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   917
	Py_INCREF(&lazymanifestType);
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   918
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   919
	PyModule_AddObject(mod, "lazymanifest",
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   920
			   (PyObject *)&lazymanifestType);
a5f1bccd2996 manifest.c: new extension code to lazily parse manifests
Augie Fackler <augie@google.com>
parents:
diff changeset
   921
}