Mercurial > hg
annotate mercurial/parsers.c @ 16373:329887a7074c
merge with stable
author | Matt Mackall <mpm@selenic.com> |
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date | Fri, 06 Apr 2012 15:18:14 -0500 |
parents | 28bb4daf070c |
children | e501f45b0eba |
rev | line source |
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1 /* |
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2 parsers.c - efficient content parsing |
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3 |
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4 Copyright 2008 Matt Mackall <mpm@selenic.com> and others |
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5 |
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6 This software may be used and distributed according to the terms of |
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7 the GNU General Public License, incorporated herein by reference. |
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8 */ |
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9 |
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10 #include <Python.h> |
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11 #include <ctype.h> |
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12 #include <string.h> |
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13 |
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14 #include "util.h" |
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15 |
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16 static int hexdigit(char c) |
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17 { |
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18 if (c >= '0' && c <= '9') |
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19 return c - '0'; |
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20 if (c >= 'a' && c <= 'f') |
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21 return c - 'a' + 10; |
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22 if (c >= 'A' && c <= 'F') |
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23 return c - 'A' + 10; |
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24 |
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25 PyErr_SetString(PyExc_ValueError, "input contains non-hex character"); |
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26 return 0; |
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27 } |
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28 |
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29 /* |
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30 * Turn a hex-encoded string into binary. |
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31 */ |
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32 static PyObject *unhexlify(const char *str, int len) |
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33 { |
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34 PyObject *ret; |
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35 const char *c; |
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36 char *d; |
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37 |
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38 ret = PyBytes_FromStringAndSize(NULL, len / 2); |
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39 |
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40 if (!ret) |
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41 return NULL; |
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42 |
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43 d = PyBytes_AsString(ret); |
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44 |
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45 for (c = str; c < str + len;) { |
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46 int hi = hexdigit(*c++); |
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47 int lo = hexdigit(*c++); |
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48 *d++ = (hi << 4) | lo; |
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49 } |
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50 |
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51 return ret; |
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52 } |
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53 |
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54 /* |
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55 * This code assumes that a manifest is stitched together with newline |
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56 * ('\n') characters. |
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57 */ |
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58 static PyObject *parse_manifest(PyObject *self, PyObject *args) |
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59 { |
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60 PyObject *mfdict, *fdict; |
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61 char *str, *cur, *start, *zero; |
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62 int len; |
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63 |
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64 if (!PyArg_ParseTuple(args, "O!O!s#:parse_manifest", |
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65 &PyDict_Type, &mfdict, |
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66 &PyDict_Type, &fdict, |
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67 &str, &len)) |
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68 goto quit; |
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69 |
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70 for (start = cur = str, zero = NULL; cur < str + len; cur++) { |
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71 PyObject *file = NULL, *node = NULL; |
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72 PyObject *flags = NULL; |
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73 int nlen; |
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74 |
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75 if (!*cur) { |
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76 zero = cur; |
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77 continue; |
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78 } |
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79 else if (*cur != '\n') |
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80 continue; |
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81 |
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82 if (!zero) { |
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83 PyErr_SetString(PyExc_ValueError, |
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84 "manifest entry has no separator"); |
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85 goto quit; |
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86 } |
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87 |
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88 file = PyBytes_FromStringAndSize(start, zero - start); |
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89 |
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90 if (!file) |
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91 goto bail; |
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92 |
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93 nlen = cur - zero - 1; |
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94 |
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95 node = unhexlify(zero + 1, nlen > 40 ? 40 : nlen); |
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96 if (!node) |
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97 goto bail; |
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98 |
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99 if (nlen > 40) { |
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100 flags = PyBytes_FromStringAndSize(zero + 41, |
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101 nlen - 40); |
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102 if (!flags) |
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103 goto bail; |
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104 |
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105 if (PyDict_SetItem(fdict, file, flags) == -1) |
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106 goto bail; |
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107 } |
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108 |
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109 if (PyDict_SetItem(mfdict, file, node) == -1) |
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110 goto bail; |
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111 |
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112 start = cur + 1; |
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113 zero = NULL; |
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114 |
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115 Py_XDECREF(flags); |
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116 Py_XDECREF(node); |
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117 Py_XDECREF(file); |
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118 continue; |
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119 bail: |
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120 Py_XDECREF(flags); |
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121 Py_XDECREF(node); |
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122 Py_XDECREF(file); |
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|
123 goto quit; |
0231f763ebc8
manifest: improve parsing performance by 8x via a new C extension
Bryan O'Sullivan <bos@serpentine.com>
parents:
diff
changeset
|
124 } |
0231f763ebc8
manifest: improve parsing performance by 8x via a new C extension
Bryan O'Sullivan <bos@serpentine.com>
parents:
diff
changeset
|
125 |
0231f763ebc8
manifest: improve parsing performance by 8x via a new C extension
Bryan O'Sullivan <bos@serpentine.com>
parents:
diff
changeset
|
126 if (len > 0 && *(cur - 1) != '\n') { |
0231f763ebc8
manifest: improve parsing performance by 8x via a new C extension
Bryan O'Sullivan <bos@serpentine.com>
parents:
diff
changeset
|
127 PyErr_SetString(PyExc_ValueError, |
0231f763ebc8
manifest: improve parsing performance by 8x via a new C extension
Bryan O'Sullivan <bos@serpentine.com>
parents:
diff
changeset
|
128 "manifest contains trailing garbage"); |
0231f763ebc8
manifest: improve parsing performance by 8x via a new C extension
Bryan O'Sullivan <bos@serpentine.com>
parents:
diff
changeset
|
129 goto quit; |
0231f763ebc8
manifest: improve parsing performance by 8x via a new C extension
Bryan O'Sullivan <bos@serpentine.com>
parents:
diff
changeset
|
130 } |
0231f763ebc8
manifest: improve parsing performance by 8x via a new C extension
Bryan O'Sullivan <bos@serpentine.com>
parents:
diff
changeset
|
131 |
0231f763ebc8
manifest: improve parsing performance by 8x via a new C extension
Bryan O'Sullivan <bos@serpentine.com>
parents:
diff
changeset
|
132 Py_INCREF(Py_None); |
0231f763ebc8
manifest: improve parsing performance by 8x via a new C extension
Bryan O'Sullivan <bos@serpentine.com>
parents:
diff
changeset
|
133 return Py_None; |
0231f763ebc8
manifest: improve parsing performance by 8x via a new C extension
Bryan O'Sullivan <bos@serpentine.com>
parents:
diff
changeset
|
134 quit: |
0231f763ebc8
manifest: improve parsing performance by 8x via a new C extension
Bryan O'Sullivan <bos@serpentine.com>
parents:
diff
changeset
|
135 return NULL; |
0231f763ebc8
manifest: improve parsing performance by 8x via a new C extension
Bryan O'Sullivan <bos@serpentine.com>
parents:
diff
changeset
|
136 } |
0231f763ebc8
manifest: improve parsing performance by 8x via a new C extension
Bryan O'Sullivan <bos@serpentine.com>
parents:
diff
changeset
|
137 |
7093
16bafcebd3d1
dirstate: C parsing extension
Matt Mackall <mpm@selenic.com>
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diff
changeset
|
138 #ifdef _WIN32 |
10282
08a0f04b56bd
many, many trivial check-code fixups
Matt Mackall <mpm@selenic.com>
parents:
9427
diff
changeset
|
139 #ifdef _MSC_VER |
7093
16bafcebd3d1
dirstate: C parsing extension
Matt Mackall <mpm@selenic.com>
parents:
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diff
changeset
|
140 /* msvc 6.0 has problems */ |
10282
08a0f04b56bd
many, many trivial check-code fixups
Matt Mackall <mpm@selenic.com>
parents:
9427
diff
changeset
|
141 #define inline __inline |
7093
16bafcebd3d1
dirstate: C parsing extension
Matt Mackall <mpm@selenic.com>
parents:
7092
diff
changeset
|
142 typedef unsigned long uint32_t; |
7122
3cf699e89e48
Fix missing uint64_t definition in parsers.c under Windows
Dhruva Krishnamurthy <dhruvakm@gmail.com>
parents:
7108
diff
changeset
|
143 typedef unsigned __int64 uint64_t; |
10282
08a0f04b56bd
many, many trivial check-code fixups
Matt Mackall <mpm@selenic.com>
parents:
9427
diff
changeset
|
144 #else |
08a0f04b56bd
many, many trivial check-code fixups
Matt Mackall <mpm@selenic.com>
parents:
9427
diff
changeset
|
145 #include <stdint.h> |
08a0f04b56bd
many, many trivial check-code fixups
Matt Mackall <mpm@selenic.com>
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9427
diff
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|
146 #endif |
7093
16bafcebd3d1
dirstate: C parsing extension
Matt Mackall <mpm@selenic.com>
parents:
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diff
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|
147 static uint32_t ntohl(uint32_t x) |
16bafcebd3d1
dirstate: C parsing extension
Matt Mackall <mpm@selenic.com>
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diff
changeset
|
148 { |
16bafcebd3d1
dirstate: C parsing extension
Matt Mackall <mpm@selenic.com>
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7092
diff
changeset
|
149 return ((x & 0x000000ffUL) << 24) | |
7190
aecea6934fdd
Some additional space/tab cleanups
Thomas Arendsen Hein <thomas@intevation.de>
parents:
7186
diff
changeset
|
150 ((x & 0x0000ff00UL) << 8) | |
aecea6934fdd
Some additional space/tab cleanups
Thomas Arendsen Hein <thomas@intevation.de>
parents:
7186
diff
changeset
|
151 ((x & 0x00ff0000UL) >> 8) | |
aecea6934fdd
Some additional space/tab cleanups
Thomas Arendsen Hein <thomas@intevation.de>
parents:
7186
diff
changeset
|
152 ((x & 0xff000000UL) >> 24); |
7093
16bafcebd3d1
dirstate: C parsing extension
Matt Mackall <mpm@selenic.com>
parents:
7092
diff
changeset
|
153 } |
16bafcebd3d1
dirstate: C parsing extension
Matt Mackall <mpm@selenic.com>
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7092
diff
changeset
|
154 #else |
16bafcebd3d1
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Matt Mackall <mpm@selenic.com>
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7092
diff
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|
155 /* not windows */ |
10282
08a0f04b56bd
many, many trivial check-code fixups
Matt Mackall <mpm@selenic.com>
parents:
9427
diff
changeset
|
156 #include <sys/types.h> |
08a0f04b56bd
many, many trivial check-code fixups
Matt Mackall <mpm@selenic.com>
parents:
9427
diff
changeset
|
157 #if defined __BEOS__ && !defined __HAIKU__ |
08a0f04b56bd
many, many trivial check-code fixups
Matt Mackall <mpm@selenic.com>
parents:
9427
diff
changeset
|
158 #include <ByteOrder.h> |
08a0f04b56bd
many, many trivial check-code fixups
Matt Mackall <mpm@selenic.com>
parents:
9427
diff
changeset
|
159 #else |
08a0f04b56bd
many, many trivial check-code fixups
Matt Mackall <mpm@selenic.com>
parents:
9427
diff
changeset
|
160 #include <arpa/inet.h> |
08a0f04b56bd
many, many trivial check-code fixups
Matt Mackall <mpm@selenic.com>
parents:
9427
diff
changeset
|
161 #endif |
08a0f04b56bd
many, many trivial check-code fixups
Matt Mackall <mpm@selenic.com>
parents:
9427
diff
changeset
|
162 #include <inttypes.h> |
7093
16bafcebd3d1
dirstate: C parsing extension
Matt Mackall <mpm@selenic.com>
parents:
7092
diff
changeset
|
163 #endif |
16bafcebd3d1
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Matt Mackall <mpm@selenic.com>
parents:
7092
diff
changeset
|
164 |
16bafcebd3d1
dirstate: C parsing extension
Matt Mackall <mpm@selenic.com>
parents:
7092
diff
changeset
|
165 static PyObject *parse_dirstate(PyObject *self, PyObject *args) |
16bafcebd3d1
dirstate: C parsing extension
Matt Mackall <mpm@selenic.com>
parents:
7092
diff
changeset
|
166 { |
16bafcebd3d1
dirstate: C parsing extension
Matt Mackall <mpm@selenic.com>
parents:
7092
diff
changeset
|
167 PyObject *dmap, *cmap, *parents = NULL, *ret = NULL; |
16bafcebd3d1
dirstate: C parsing extension
Matt Mackall <mpm@selenic.com>
parents:
7092
diff
changeset
|
168 PyObject *fname = NULL, *cname = NULL, *entry = NULL; |
16bafcebd3d1
dirstate: C parsing extension
Matt Mackall <mpm@selenic.com>
parents:
7092
diff
changeset
|
169 char *str, *cur, *end, *cpos; |
7174
4da87407b845
parsers.c: fix integer overflows
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
7168
diff
changeset
|
170 int state, mode, size, mtime; |
4da87407b845
parsers.c: fix integer overflows
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
7168
diff
changeset
|
171 unsigned int flen; |
7093
16bafcebd3d1
dirstate: C parsing extension
Matt Mackall <mpm@selenic.com>
parents:
7092
diff
changeset
|
172 int len; |
15033
2ef2d3a5cd2d
parsers: avoid pointer aliasing
Matt Mackall <mpm@selenic.com>
parents:
13302
diff
changeset
|
173 uint32_t decode[4]; /* for alignment */ |
7093
16bafcebd3d1
dirstate: C parsing extension
Matt Mackall <mpm@selenic.com>
parents:
7092
diff
changeset
|
174 |
16bafcebd3d1
dirstate: C parsing extension
Matt Mackall <mpm@selenic.com>
parents:
7092
diff
changeset
|
175 if (!PyArg_ParseTuple(args, "O!O!s#:parse_dirstate", |
16bafcebd3d1
dirstate: C parsing extension
Matt Mackall <mpm@selenic.com>
parents:
7092
diff
changeset
|
176 &PyDict_Type, &dmap, |
16bafcebd3d1
dirstate: C parsing extension
Matt Mackall <mpm@selenic.com>
parents:
7092
diff
changeset
|
177 &PyDict_Type, &cmap, |
16bafcebd3d1
dirstate: C parsing extension
Matt Mackall <mpm@selenic.com>
parents:
7092
diff
changeset
|
178 &str, &len)) |
16bafcebd3d1
dirstate: C parsing extension
Matt Mackall <mpm@selenic.com>
parents:
7092
diff
changeset
|
179 goto quit; |
16bafcebd3d1
dirstate: C parsing extension
Matt Mackall <mpm@selenic.com>
parents:
7092
diff
changeset
|
180 |
16bafcebd3d1
dirstate: C parsing extension
Matt Mackall <mpm@selenic.com>
parents:
7092
diff
changeset
|
181 /* read parents */ |
16bafcebd3d1
dirstate: C parsing extension
Matt Mackall <mpm@selenic.com>
parents:
7092
diff
changeset
|
182 if (len < 40) |
16bafcebd3d1
dirstate: C parsing extension
Matt Mackall <mpm@selenic.com>
parents:
7092
diff
changeset
|
183 goto quit; |
16bafcebd3d1
dirstate: C parsing extension
Matt Mackall <mpm@selenic.com>
parents:
7092
diff
changeset
|
184 |
16bafcebd3d1
dirstate: C parsing extension
Matt Mackall <mpm@selenic.com>
parents:
7092
diff
changeset
|
185 parents = Py_BuildValue("s#s#", str, 20, str + 20, 20); |
16bafcebd3d1
dirstate: C parsing extension
Matt Mackall <mpm@selenic.com>
parents:
7092
diff
changeset
|
186 if (!parents) |
16bafcebd3d1
dirstate: C parsing extension
Matt Mackall <mpm@selenic.com>
parents:
7092
diff
changeset
|
187 goto quit; |
16bafcebd3d1
dirstate: C parsing extension
Matt Mackall <mpm@selenic.com>
parents:
7092
diff
changeset
|
188 |
16bafcebd3d1
dirstate: C parsing extension
Matt Mackall <mpm@selenic.com>
parents:
7092
diff
changeset
|
189 /* read filenames */ |
16bafcebd3d1
dirstate: C parsing extension
Matt Mackall <mpm@selenic.com>
parents:
7092
diff
changeset
|
190 cur = str + 40; |
16bafcebd3d1
dirstate: C parsing extension
Matt Mackall <mpm@selenic.com>
parents:
7092
diff
changeset
|
191 end = str + len; |
16bafcebd3d1
dirstate: C parsing extension
Matt Mackall <mpm@selenic.com>
parents:
7092
diff
changeset
|
192 |
16bafcebd3d1
dirstate: C parsing extension
Matt Mackall <mpm@selenic.com>
parents:
7092
diff
changeset
|
193 while (cur < end - 17) { |
16bafcebd3d1
dirstate: C parsing extension
Matt Mackall <mpm@selenic.com>
parents:
7092
diff
changeset
|
194 /* unpack header */ |
16bafcebd3d1
dirstate: C parsing extension
Matt Mackall <mpm@selenic.com>
parents:
7092
diff
changeset
|
195 state = *cur; |
16bafcebd3d1
dirstate: C parsing extension
Matt Mackall <mpm@selenic.com>
parents:
7092
diff
changeset
|
196 memcpy(decode, cur + 1, 16); |
15033
2ef2d3a5cd2d
parsers: avoid pointer aliasing
Matt Mackall <mpm@selenic.com>
parents:
13302
diff
changeset
|
197 mode = ntohl(decode[0]); |
2ef2d3a5cd2d
parsers: avoid pointer aliasing
Matt Mackall <mpm@selenic.com>
parents:
13302
diff
changeset
|
198 size = ntohl(decode[1]); |
2ef2d3a5cd2d
parsers: avoid pointer aliasing
Matt Mackall <mpm@selenic.com>
parents:
13302
diff
changeset
|
199 mtime = ntohl(decode[2]); |
2ef2d3a5cd2d
parsers: avoid pointer aliasing
Matt Mackall <mpm@selenic.com>
parents:
13302
diff
changeset
|
200 flen = ntohl(decode[3]); |
7093
16bafcebd3d1
dirstate: C parsing extension
Matt Mackall <mpm@selenic.com>
parents:
7092
diff
changeset
|
201 cur += 17; |
10449
7c8266c1d15a
parsers: fix some signed comparison issues
Matt Mackall <mpm@selenic.com>
parents:
10282
diff
changeset
|
202 if (cur + flen > end || cur + flen < cur) { |
7174
4da87407b845
parsers.c: fix integer overflows
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
7168
diff
changeset
|
203 PyErr_SetString(PyExc_ValueError, "overflow in dirstate"); |
7093
16bafcebd3d1
dirstate: C parsing extension
Matt Mackall <mpm@selenic.com>
parents:
7092
diff
changeset
|
204 goto quit; |
7174
4da87407b845
parsers.c: fix integer overflows
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
7168
diff
changeset
|
205 } |
7093
16bafcebd3d1
dirstate: C parsing extension
Matt Mackall <mpm@selenic.com>
parents:
7092
diff
changeset
|
206 |
16bafcebd3d1
dirstate: C parsing extension
Matt Mackall <mpm@selenic.com>
parents:
7092
diff
changeset
|
207 entry = Py_BuildValue("ciii", state, mode, size, mtime); |
16bafcebd3d1
dirstate: C parsing extension
Matt Mackall <mpm@selenic.com>
parents:
7092
diff
changeset
|
208 if (!entry) |
16bafcebd3d1
dirstate: C parsing extension
Matt Mackall <mpm@selenic.com>
parents:
7092
diff
changeset
|
209 goto quit; |
7175
5d8626b2c1db
parsers.c: do not try to untrack after a failure
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents:
7174
diff
changeset
|
210 PyObject_GC_UnTrack(entry); /* don't waste time with this */ |
7093
16bafcebd3d1
dirstate: C parsing extension
Matt Mackall <mpm@selenic.com>
parents:
7092
diff
changeset
|
211 |
16bafcebd3d1
dirstate: C parsing extension
Matt Mackall <mpm@selenic.com>
parents:
7092
diff
changeset
|
212 cpos = memchr(cur, 0, flen); |
16bafcebd3d1
dirstate: C parsing extension
Matt Mackall <mpm@selenic.com>
parents:
7092
diff
changeset
|
213 if (cpos) { |
11361
3de3d670d2b6
parsers.c: Added support for py3k.
Renato Cunha <renatoc@gmail.com>
parents:
10449
diff
changeset
|
214 fname = PyBytes_FromStringAndSize(cur, cpos - cur); |
3de3d670d2b6
parsers.c: Added support for py3k.
Renato Cunha <renatoc@gmail.com>
parents:
10449
diff
changeset
|
215 cname = PyBytes_FromStringAndSize(cpos + 1, |
7093
16bafcebd3d1
dirstate: C parsing extension
Matt Mackall <mpm@selenic.com>
parents:
7092
diff
changeset
|
216 flen - (cpos - cur) - 1); |
16bafcebd3d1
dirstate: C parsing extension
Matt Mackall <mpm@selenic.com>
parents:
7092
diff
changeset
|
217 if (!fname || !cname || |
16bafcebd3d1
dirstate: C parsing extension
Matt Mackall <mpm@selenic.com>
parents:
7092
diff
changeset
|
218 PyDict_SetItem(cmap, fname, cname) == -1 || |
16bafcebd3d1
dirstate: C parsing extension
Matt Mackall <mpm@selenic.com>
parents:
7092
diff
changeset
|
219 PyDict_SetItem(dmap, fname, entry) == -1) |
16bafcebd3d1
dirstate: C parsing extension
Matt Mackall <mpm@selenic.com>
parents:
7092
diff
changeset
|
220 goto quit; |
16bafcebd3d1
dirstate: C parsing extension
Matt Mackall <mpm@selenic.com>
parents:
7092
diff
changeset
|
221 Py_DECREF(cname); |
16bafcebd3d1
dirstate: C parsing extension
Matt Mackall <mpm@selenic.com>
parents:
7092
diff
changeset
|
222 } else { |
11361
3de3d670d2b6
parsers.c: Added support for py3k.
Renato Cunha <renatoc@gmail.com>
parents:
10449
diff
changeset
|
223 fname = PyBytes_FromStringAndSize(cur, flen); |
7093
16bafcebd3d1
dirstate: C parsing extension
Matt Mackall <mpm@selenic.com>
parents:
7092
diff
changeset
|
224 if (!fname || |
16bafcebd3d1
dirstate: C parsing extension
Matt Mackall <mpm@selenic.com>
parents:
7092
diff
changeset
|
225 PyDict_SetItem(dmap, fname, entry) == -1) |
16bafcebd3d1
dirstate: C parsing extension
Matt Mackall <mpm@selenic.com>
parents:
7092
diff
changeset
|
226 goto quit; |
16bafcebd3d1
dirstate: C parsing extension
Matt Mackall <mpm@selenic.com>
parents:
7092
diff
changeset
|
227 } |
16bafcebd3d1
dirstate: C parsing extension
Matt Mackall <mpm@selenic.com>
parents:
7092
diff
changeset
|
228 cur += flen; |
16bafcebd3d1
dirstate: C parsing extension
Matt Mackall <mpm@selenic.com>
parents:
7092
diff
changeset
|
229 Py_DECREF(fname); |
16bafcebd3d1
dirstate: C parsing extension
Matt Mackall <mpm@selenic.com>
parents:
7092
diff
changeset
|
230 Py_DECREF(entry); |
16bafcebd3d1
dirstate: C parsing extension
Matt Mackall <mpm@selenic.com>
parents:
7092
diff
changeset
|
231 fname = cname = entry = NULL; |
16bafcebd3d1
dirstate: C parsing extension
Matt Mackall <mpm@selenic.com>
parents:
7092
diff
changeset
|
232 } |
16bafcebd3d1
dirstate: C parsing extension
Matt Mackall <mpm@selenic.com>
parents:
7092
diff
changeset
|
233 |
16bafcebd3d1
dirstate: C parsing extension
Matt Mackall <mpm@selenic.com>
parents:
7092
diff
changeset
|
234 ret = parents; |
16bafcebd3d1
dirstate: C parsing extension
Matt Mackall <mpm@selenic.com>
parents:
7092
diff
changeset
|
235 Py_INCREF(ret); |
16bafcebd3d1
dirstate: C parsing extension
Matt Mackall <mpm@selenic.com>
parents:
7092
diff
changeset
|
236 quit: |
16bafcebd3d1
dirstate: C parsing extension
Matt Mackall <mpm@selenic.com>
parents:
7092
diff
changeset
|
237 Py_XDECREF(fname); |
16bafcebd3d1
dirstate: C parsing extension
Matt Mackall <mpm@selenic.com>
parents:
7092
diff
changeset
|
238 Py_XDECREF(cname); |
16bafcebd3d1
dirstate: C parsing extension
Matt Mackall <mpm@selenic.com>
parents:
7092
diff
changeset
|
239 Py_XDECREF(entry); |
16bafcebd3d1
dirstate: C parsing extension
Matt Mackall <mpm@selenic.com>
parents:
7092
diff
changeset
|
240 Py_XDECREF(parents); |
16bafcebd3d1
dirstate: C parsing extension
Matt Mackall <mpm@selenic.com>
parents:
7092
diff
changeset
|
241 return ret; |
16bafcebd3d1
dirstate: C parsing extension
Matt Mackall <mpm@selenic.com>
parents:
7092
diff
changeset
|
242 } |
16bafcebd3d1
dirstate: C parsing extension
Matt Mackall <mpm@selenic.com>
parents:
7092
diff
changeset
|
243 |
16363
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
244 /* |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
245 * A list-like object that decodes the contents of a RevlogNG index |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
246 * file on demand. It has limited support for insert and delete at the |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
247 * last element before the end. The last entry is always a sentinel |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
248 * nullid. |
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249 */ |
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250 typedef struct { |
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251 PyObject_HEAD |
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252 /* Type-specific fields go here. */ |
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253 PyObject *data; /* raw bytes of index */ |
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254 PyObject **cache; /* cached tuples */ |
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255 const char **offsets; /* populated on demand */ |
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256 Py_ssize_t raw_length; /* original number of elements */ |
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257 Py_ssize_t length; /* current number of elements */ |
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258 PyObject *added; /* populated on demand */ |
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259 int inlined; |
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260 } indexObject; |
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261 |
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262 static Py_ssize_t index_length(indexObject *self) |
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263 { |
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264 if (self->added == NULL) |
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265 return self->length; |
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266 return self->length + PyList_GET_SIZE(self->added); |
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267 } |
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268 |
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269 static PyObject *nullentry; |
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270 |
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271 static long inline_scan(indexObject *self, const char **offsets); |
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272 |
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273 #if LONG_MAX == 0x7fffffffL |
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274 static const char *tuple_format = "Kiiiiiis#"; |
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275 #else |
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276 static const char *tuple_format = "kiiiiiis#"; |
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277 #endif |
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278 |
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279 /* RevlogNG format (all in big endian, data may be inlined): |
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280 * 6 bytes: offset |
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281 * 2 bytes: flags |
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282 * 4 bytes: compressed length |
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283 * 4 bytes: uncompressed length |
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284 * 4 bytes: base revision |
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285 * 4 bytes: link revision |
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286 * 4 bytes: parent 1 revision |
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287 * 4 bytes: parent 2 revision |
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288 * 32 bytes: nodeid (only 20 bytes used) |
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289 */ |
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290 static PyObject *index_get(indexObject *self, Py_ssize_t pos) |
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291 { |
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292 uint32_t decode[8]; /* to enforce alignment with inline data */ |
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293 uint64_t offset_flags; |
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294 int comp_len, uncomp_len, base_rev, link_rev, parent_1, parent_2; |
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295 const char *c_node_id; |
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296 const char *data; |
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297 Py_ssize_t length = index_length(self); |
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298 PyObject *entry; |
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299 |
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300 if (pos >= length) { |
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301 PyErr_SetString(PyExc_IndexError, "revlog index out of range"); |
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302 return NULL; |
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303 } |
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304 |
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305 if (pos == length - 1) { |
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306 Py_INCREF(nullentry); |
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307 return nullentry; |
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308 } |
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309 |
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310 if (pos >= self->length - 1) { |
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311 PyObject *obj; |
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312 obj = PyList_GET_ITEM(self->added, pos - self->length + 1); |
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313 Py_INCREF(obj); |
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314 return obj; |
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315 } |
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316 |
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317 if (self->cache) { |
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318 if (self->cache[pos]) { |
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319 Py_INCREF(self->cache[pos]); |
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320 return self->cache[pos]; |
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321 } |
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322 } else { |
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323 self->cache = calloc(self->raw_length, sizeof(PyObject *)); |
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324 if (self->cache == NULL) |
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325 return PyErr_NoMemory(); |
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326 } |
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327 |
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328 if (self->inlined && pos > 0) { |
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329 if (self->offsets == NULL) { |
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330 self->offsets = malloc(self->raw_length * |
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331 sizeof(*self->offsets)); |
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332 if (self->offsets == NULL) |
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333 return PyErr_NoMemory(); |
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334 inline_scan(self, self->offsets); |
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335 } |
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336 data = self->offsets[pos]; |
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337 } else |
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338 data = PyString_AS_STRING(self->data) + pos * 64; |
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339 |
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340 memcpy(decode, data, 8 * sizeof(uint32_t)); |
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341 |
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342 offset_flags = ntohl(decode[1]); |
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343 if (pos == 0) /* mask out version number for the first entry */ |
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344 offset_flags &= 0xFFFF; |
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345 else { |
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346 uint32_t offset_high = ntohl(decode[0]); |
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347 offset_flags |= ((uint64_t)offset_high) << 32; |
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348 } |
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349 |
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350 comp_len = ntohl(decode[2]); |
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351 uncomp_len = ntohl(decode[3]); |
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352 base_rev = ntohl(decode[4]); |
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353 link_rev = ntohl(decode[5]); |
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354 parent_1 = ntohl(decode[6]); |
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355 parent_2 = ntohl(decode[7]); |
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356 c_node_id = data + 32; |
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357 |
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358 entry = Py_BuildValue(tuple_format, offset_flags, comp_len, |
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359 uncomp_len, base_rev, link_rev, |
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360 parent_1, parent_2, c_node_id, 20); |
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361 |
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362 if (entry) |
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363 PyObject_GC_UnTrack(entry); |
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364 |
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365 self->cache[pos] = entry; |
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366 Py_INCREF(entry); |
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367 |
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368 return entry; |
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369 } |
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370 |
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371 static PyObject *index_insert(indexObject *self, PyObject *args) |
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372 { |
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373 PyObject *obj, *node; |
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374 long offset; |
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375 Py_ssize_t len; |
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376 |
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377 if (!PyArg_ParseTuple(args, "lO", &offset, &obj)) |
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378 return NULL; |
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379 |
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380 if (!PyTuple_Check(obj) || PyTuple_GET_SIZE(obj) != 8) { |
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381 PyErr_SetString(PyExc_ValueError, "8-tuple required"); |
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382 return NULL; |
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383 } |
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384 |
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385 node = PyTuple_GET_ITEM(obj, 7); |
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386 if (!PyString_Check(node) || PyString_GET_SIZE(node) != 20) { |
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387 PyErr_SetString(PyExc_ValueError, |
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388 "20-byte hash required as last element"); |
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389 return NULL; |
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390 } |
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391 |
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392 len = index_length(self); |
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393 |
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394 if (offset < 0) |
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395 offset += len; |
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396 |
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397 if (offset != len - 1) { |
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398 PyErr_SetString(PyExc_IndexError, |
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399 "insert only supported at index -1"); |
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400 return NULL; |
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401 } |
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402 |
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403 if (self->added == NULL) { |
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404 self->added = PyList_New(0); |
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405 if (self->added == NULL) |
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406 return NULL; |
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407 } |
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408 |
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409 if (PyList_Append(self->added, obj) == -1) |
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410 return NULL; |
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411 |
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412 Py_RETURN_NONE; |
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413 } |
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414 |
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415 static void _index_clearcaches(indexObject *self) |
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416 { |
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417 if (self->cache) { |
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418 Py_ssize_t i; |
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419 |
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420 for (i = 0; i < self->raw_length; i++) { |
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421 Py_XDECREF(self->cache[i]); |
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422 self->cache[i] = NULL; |
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423 } |
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424 free(self->cache); |
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425 self->cache = NULL; |
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426 } |
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427 if (self->offsets) { |
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428 free(self->offsets); |
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429 self->offsets = NULL; |
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430 } |
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431 } |
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432 |
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433 static PyObject *index_clearcaches(indexObject *self) |
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434 { |
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435 _index_clearcaches(self); |
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436 Py_RETURN_NONE; |
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437 } |
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438 |
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439 static int index_assign_subscript(indexObject *self, PyObject *item, |
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440 PyObject *value) |
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441 { |
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442 Py_ssize_t start, stop, step, slicelength; |
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443 Py_ssize_t length = index_length(self); |
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444 |
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445 if (!PySlice_Check(item) || value != NULL) { |
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446 PyErr_SetString(PyExc_TypeError, |
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447 "revlog index only supports slice deletion"); |
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448 return -1; |
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449 } |
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450 |
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451 if (PySlice_GetIndicesEx((PySliceObject*)item, length, |
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452 &start, &stop, &step, &slicelength) < 0) |
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453 return -1; |
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454 |
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455 if (slicelength <= 0) |
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456 return 0; |
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457 |
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458 if ((step < 0 && start < stop) || (step > 0 && start > stop)) |
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459 stop = start; |
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460 |
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461 if (step < 0) { |
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462 stop = start + 1; |
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463 start = stop + step*(slicelength - 1) - 1; |
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464 step = -step; |
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465 } |
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466 |
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467 if (step != 1) { |
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468 PyErr_SetString(PyExc_ValueError, |
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469 "revlog index delete requires step size of 1"); |
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470 return -1; |
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471 } |
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472 |
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473 if (stop != length - 1) { |
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474 PyErr_SetString(PyExc_IndexError, |
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475 "revlog index deletion indices are invalid"); |
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476 return -1; |
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477 } |
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478 |
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479 if (start < self->length) { |
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480 self->length = start + 1; |
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481 if (self->added) { |
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|
482 Py_DECREF(self->added); |
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483 self->added = NULL; |
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|
484 } |
7154
7fdf7a0a41b7
index parser: fix refcounting in case of errors, refactor
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
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7135
diff
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|
485 return 0; |
7108
1ca878d7b849
C implementation of revlog index parsing
Bernhard Leiner <bleiner@gmail.com>
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|
486 } |
1ca878d7b849
C implementation of revlog index parsing
Bernhard Leiner <bleiner@gmail.com>
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|
487 |
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488 return PyList_SetSlice(self->added, start - self->length + 1, |
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489 PyList_GET_SIZE(self->added), |
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|
490 NULL); |
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|
491 } |
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|
492 |
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493 static long inline_scan(indexObject *self, const char **offsets) |
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|
494 { |
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|
495 const char *data = PyString_AS_STRING(self->data); |
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496 const char *end = data + PyString_GET_SIZE(self->data); |
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497 const long hdrsize = 64; |
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498 long incr = hdrsize; |
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|
499 Py_ssize_t len = 0; |
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11361
diff
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|
500 |
16363
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|
501 while (data + hdrsize <= end) { |
2cdd7e63211b
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|
502 uint32_t comp_len; |
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|
503 const char *old_data; |
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504 /* 3rd element of header is length of compressed inline data */ |
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505 memcpy(&comp_len, data + 8, sizeof(uint32_t)); |
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|
506 incr = hdrsize + ntohl(comp_len); |
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|
507 if (incr < hdrsize) |
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|
508 break; |
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changeset
|
509 if (offsets) |
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|
510 offsets[len] = data; |
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|
511 len++; |
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|
512 old_data = data; |
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parsers: incrementally parse the revlog index in C
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changeset
|
513 data += incr; |
2cdd7e63211b
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|
514 if (data <= old_data) |
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|
515 break; |
2cdd7e63211b
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|
516 } |
13254
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revlog: only build the nodemap on demand
Matt Mackall <mpm@selenic.com>
parents:
11361
diff
changeset
|
517 |
16363
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|
518 if (data != end && data + hdrsize != end) { |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
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|
519 if (!PyErr_Occurred()) |
2cdd7e63211b
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|
520 PyErr_SetString(PyExc_ValueError, "corrupt index file"); |
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521 return -1; |
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|
522 } |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
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|
523 |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
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|
524 return len; |
2cdd7e63211b
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Bryan O'Sullivan <bryano@fb.com>
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|
525 } |
13254
5ef5eb1f3515
revlog: only build the nodemap on demand
Matt Mackall <mpm@selenic.com>
parents:
11361
diff
changeset
|
526 |
16363
2cdd7e63211b
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diff
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|
527 static int index_real_init(indexObject *self, const char *data, int size, |
2cdd7e63211b
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|
528 PyObject *inlined_obj, PyObject *data_obj) |
2cdd7e63211b
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|
529 { |
2cdd7e63211b
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|
530 self->inlined = inlined_obj && PyObject_IsTrue(inlined_obj); |
2cdd7e63211b
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changeset
|
531 self->data = data_obj; |
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parsers: incrementally parse the revlog index in C
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|
532 self->cache = NULL; |
2cdd7e63211b
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diff
changeset
|
533 |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
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diff
changeset
|
534 self->added = NULL; |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
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changeset
|
535 self->offsets = NULL; |
2cdd7e63211b
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changeset
|
536 Py_INCREF(self->data); |
7108
1ca878d7b849
C implementation of revlog index parsing
Bernhard Leiner <bleiner@gmail.com>
parents:
7093
diff
changeset
|
537 |
16363
2cdd7e63211b
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Bryan O'Sullivan <bryano@fb.com>
parents:
15033
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changeset
|
538 if (self->inlined) { |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
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parents:
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diff
changeset
|
539 long len = inline_scan(self, NULL); |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
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diff
changeset
|
540 if (len == -1) |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
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parents:
15033
diff
changeset
|
541 goto bail; |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
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parents:
15033
diff
changeset
|
542 self->raw_length = len; |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
543 self->length = len + 1; |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
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changeset
|
544 } else { |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
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diff
changeset
|
545 if (size % 64) { |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
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changeset
|
546 PyErr_SetString(PyExc_ValueError, "corrupt index file"); |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
547 goto bail; |
2cdd7e63211b
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Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
548 } |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
549 self->raw_length = size / 64; |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
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diff
changeset
|
550 self->length = self->raw_length + 1; |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
551 } |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
552 |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
553 return 0; |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
554 bail: |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
555 return -1; |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
556 } |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
557 |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
558 static int index_init(indexObject *self, PyObject *args, PyObject *kwds) |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
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diff
changeset
|
559 { |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
560 const char *data; |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
561 int size; |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
562 PyObject *inlined_obj; |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
563 |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
564 if (!PyArg_ParseTuple(args, "s#O", &data, &size, &inlined_obj)) |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
565 return -1; |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
566 |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
567 return index_real_init(self, data, size, inlined_obj, |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
568 PyTuple_GET_ITEM(args, 0)); |
7108
1ca878d7b849
C implementation of revlog index parsing
Bernhard Leiner <bleiner@gmail.com>
parents:
7093
diff
changeset
|
569 } |
1ca878d7b849
C implementation of revlog index parsing
Bernhard Leiner <bleiner@gmail.com>
parents:
7093
diff
changeset
|
570 |
16363
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
571 static void index_dealloc(indexObject *self) |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
572 { |
16370
28bb4daf070c
parsers: fix a memleak, and add a clearcaches method to the index
Bryan O'Sullivan <bryano@fb.com>
parents:
16363
diff
changeset
|
573 _index_clearcaches(self); |
16363
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
574 Py_DECREF(self->data); |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
575 Py_XDECREF(self->added); |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
576 PyObject_Del(self); |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
577 } |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
578 |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
579 static PySequenceMethods index_sequence_methods = { |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
580 (lenfunc)index_length, /* sq_length */ |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
581 0, /* sq_concat */ |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
582 0, /* sq_repeat */ |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
583 (ssizeargfunc)index_get, /* sq_item */ |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
584 }; |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
585 |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
586 static PyMappingMethods index_mapping_methods = { |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
587 (lenfunc)index_length, /* mp_length */ |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
588 NULL, /* mp_subscript */ |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
589 (objobjargproc)index_assign_subscript, /* mp_ass_subscript */ |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
590 }; |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
591 |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
592 static PyMethodDef index_methods[] = { |
16370
28bb4daf070c
parsers: fix a memleak, and add a clearcaches method to the index
Bryan O'Sullivan <bryano@fb.com>
parents:
16363
diff
changeset
|
593 {"clearcaches", (PyCFunction)index_clearcaches, METH_NOARGS, |
28bb4daf070c
parsers: fix a memleak, and add a clearcaches method to the index
Bryan O'Sullivan <bryano@fb.com>
parents:
16363
diff
changeset
|
594 "clear the index caches"}, |
16363
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
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diff
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|
595 {"insert", (PyCFunction)index_insert, METH_VARARGS, |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
596 "insert an index entry"}, |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
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diff
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|
597 {NULL} /* Sentinel */ |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
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|
598 }; |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
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diff
changeset
|
599 |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
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diff
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|
600 static PyTypeObject indexType = { |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
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parents:
15033
diff
changeset
|
601 PyObject_HEAD_INIT(NULL) |
2cdd7e63211b
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parents:
15033
diff
changeset
|
602 0, /* ob_size */ |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
603 "parsers.index", /* tp_name */ |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
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|
604 sizeof(indexObject), /* tp_basicsize */ |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
605 0, /* tp_itemsize */ |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
606 (destructor)index_dealloc, /* tp_dealloc */ |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
607 0, /* tp_print */ |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
608 0, /* tp_getattr */ |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
609 0, /* tp_setattr */ |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
610 0, /* tp_compare */ |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
611 0, /* tp_repr */ |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
612 0, /* tp_as_number */ |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
613 &index_sequence_methods, /* tp_as_sequence */ |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
614 &index_mapping_methods, /* tp_as_mapping */ |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
615 0, /* tp_hash */ |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
616 0, /* tp_call */ |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
617 0, /* tp_str */ |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
618 0, /* tp_getattro */ |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
619 0, /* tp_setattro */ |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
620 0, /* tp_as_buffer */ |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
621 Py_TPFLAGS_DEFAULT, /* tp_flags */ |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
622 "revlog index", /* tp_doc */ |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
623 0, /* tp_traverse */ |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
624 0, /* tp_clear */ |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
625 0, /* tp_richcompare */ |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
626 0, /* tp_weaklistoffset */ |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
627 0, /* tp_iter */ |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
628 0, /* tp_iternext */ |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
629 index_methods, /* tp_methods */ |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
630 0, /* tp_members */ |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
631 0, /* tp_getset */ |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
632 0, /* tp_base */ |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
633 0, /* tp_dict */ |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
634 0, /* tp_descr_get */ |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
635 0, /* tp_descr_set */ |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
636 0, /* tp_dictoffset */ |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
637 (initproc)index_init, /* tp_init */ |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
638 0, /* tp_alloc */ |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
639 PyType_GenericNew, /* tp_new */ |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
640 }; |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
641 |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
642 /* |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
643 * returns a tuple of the form (index, None, cache) with elements as |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
644 * follows: |
7108
1ca878d7b849
C implementation of revlog index parsing
Bernhard Leiner <bleiner@gmail.com>
parents:
7093
diff
changeset
|
645 * |
16363
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
646 * index: an index object that lazily parses the RevlogNG records |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
647 * cache: if data is inlined, a tuple (index_file_content, 0), else None |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
648 * |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
649 * added complications are for backwards compatibility |
7108
1ca878d7b849
C implementation of revlog index parsing
Bernhard Leiner <bleiner@gmail.com>
parents:
7093
diff
changeset
|
650 */ |
13254
5ef5eb1f3515
revlog: only build the nodemap on demand
Matt Mackall <mpm@selenic.com>
parents:
11361
diff
changeset
|
651 static PyObject *parse_index2(PyObject *self, PyObject *args) |
7108
1ca878d7b849
C implementation of revlog index parsing
Bernhard Leiner <bleiner@gmail.com>
parents:
7093
diff
changeset
|
652 { |
1ca878d7b849
C implementation of revlog index parsing
Bernhard Leiner <bleiner@gmail.com>
parents:
7093
diff
changeset
|
653 const char *data; |
16363
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
654 int size, ret; |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
655 PyObject *inlined_obj, *tuple = NULL, *cache = NULL; |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
656 indexObject *idx; |
7108
1ca878d7b849
C implementation of revlog index parsing
Bernhard Leiner <bleiner@gmail.com>
parents:
7093
diff
changeset
|
657 |
1ca878d7b849
C implementation of revlog index parsing
Bernhard Leiner <bleiner@gmail.com>
parents:
7093
diff
changeset
|
658 if (!PyArg_ParseTuple(args, "s#O", &data, &size, &inlined_obj)) |
1ca878d7b849
C implementation of revlog index parsing
Bernhard Leiner <bleiner@gmail.com>
parents:
7093
diff
changeset
|
659 return NULL; |
16363
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
660 |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
661 idx = PyObject_New(indexObject, &indexType); |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
662 |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
663 if (idx == NULL) |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
664 goto bail; |
7108
1ca878d7b849
C implementation of revlog index parsing
Bernhard Leiner <bleiner@gmail.com>
parents:
7093
diff
changeset
|
665 |
16363
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
666 ret = index_real_init(idx, data, size, inlined_obj, |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
667 PyTuple_GET_ITEM(args, 0)); |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
668 if (ret) |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
669 goto bail; |
7108
1ca878d7b849
C implementation of revlog index parsing
Bernhard Leiner <bleiner@gmail.com>
parents:
7093
diff
changeset
|
670 |
16363
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
671 if (idx->inlined) { |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
672 Py_INCREF(idx->data); |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
673 cache = Py_BuildValue("iO", 0, idx->data); |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
674 if (cache == NULL) |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
675 goto bail; |
7108
1ca878d7b849
C implementation of revlog index parsing
Bernhard Leiner <bleiner@gmail.com>
parents:
7093
diff
changeset
|
676 } else { |
1ca878d7b849
C implementation of revlog index parsing
Bernhard Leiner <bleiner@gmail.com>
parents:
7093
diff
changeset
|
677 cache = Py_None; |
16363
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
678 Py_INCREF(cache); |
7108
1ca878d7b849
C implementation of revlog index parsing
Bernhard Leiner <bleiner@gmail.com>
parents:
7093
diff
changeset
|
679 } |
1ca878d7b849
C implementation of revlog index parsing
Bernhard Leiner <bleiner@gmail.com>
parents:
7093
diff
changeset
|
680 |
16363
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
681 tuple = Py_BuildValue("NN", idx, cache); |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
682 if (!tuple) |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
683 goto bail; |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
684 return tuple; |
7108
1ca878d7b849
C implementation of revlog index parsing
Bernhard Leiner <bleiner@gmail.com>
parents:
7093
diff
changeset
|
685 |
16363
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
686 bail: |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
687 Py_XDECREF(idx); |
7108
1ca878d7b849
C implementation of revlog index parsing
Bernhard Leiner <bleiner@gmail.com>
parents:
7093
diff
changeset
|
688 Py_XDECREF(cache); |
16363
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
689 Py_XDECREF(tuple); |
7108
1ca878d7b849
C implementation of revlog index parsing
Bernhard Leiner <bleiner@gmail.com>
parents:
7093
diff
changeset
|
690 return NULL; |
1ca878d7b849
C implementation of revlog index parsing
Bernhard Leiner <bleiner@gmail.com>
parents:
7093
diff
changeset
|
691 } |
1ca878d7b849
C implementation of revlog index parsing
Bernhard Leiner <bleiner@gmail.com>
parents:
7093
diff
changeset
|
692 |
6389
0231f763ebc8
manifest: improve parsing performance by 8x via a new C extension
Bryan O'Sullivan <bos@serpentine.com>
parents:
diff
changeset
|
693 static char parsers_doc[] = "Efficient content parsing."; |
0231f763ebc8
manifest: improve parsing performance by 8x via a new C extension
Bryan O'Sullivan <bos@serpentine.com>
parents:
diff
changeset
|
694 |
0231f763ebc8
manifest: improve parsing performance by 8x via a new C extension
Bryan O'Sullivan <bos@serpentine.com>
parents:
diff
changeset
|
695 static PyMethodDef methods[] = { |
0231f763ebc8
manifest: improve parsing performance by 8x via a new C extension
Bryan O'Sullivan <bos@serpentine.com>
parents:
diff
changeset
|
696 {"parse_manifest", parse_manifest, METH_VARARGS, "parse a manifest\n"}, |
7093
16bafcebd3d1
dirstate: C parsing extension
Matt Mackall <mpm@selenic.com>
parents:
7092
diff
changeset
|
697 {"parse_dirstate", parse_dirstate, METH_VARARGS, "parse a dirstate\n"}, |
13254
5ef5eb1f3515
revlog: only build the nodemap on demand
Matt Mackall <mpm@selenic.com>
parents:
11361
diff
changeset
|
698 {"parse_index2", parse_index2, METH_VARARGS, "parse a revlog index\n"}, |
6389
0231f763ebc8
manifest: improve parsing performance by 8x via a new C extension
Bryan O'Sullivan <bos@serpentine.com>
parents:
diff
changeset
|
699 {NULL, NULL} |
0231f763ebc8
manifest: improve parsing performance by 8x via a new C extension
Bryan O'Sullivan <bos@serpentine.com>
parents:
diff
changeset
|
700 }; |
0231f763ebc8
manifest: improve parsing performance by 8x via a new C extension
Bryan O'Sullivan <bos@serpentine.com>
parents:
diff
changeset
|
701 |
16363
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
702 static void module_init(PyObject *mod) |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
703 { |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
704 static const char nullid[20]; |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
705 |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
706 if (PyType_Ready(&indexType) < 0) |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
707 return; |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
708 Py_INCREF(&indexType); |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
709 |
2cdd7e63211b
parsers: incrementally parse the revlog index in C
Bryan O'Sullivan <bryano@fb.com>
parents:
15033
diff
changeset
|
710 PyModule_AddObject(mod, "index", (PyObject *)&indexType); |
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711 |
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712 nullentry = Py_BuildValue("iiiiiiis#", 0, 0, 0, |
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713 -1, -1, -1, -1, nullid, 20); |
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714 if (nullentry) |
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715 PyObject_GC_UnTrack(nullentry); |
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716 } |
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717 |
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718 #ifdef IS_PY3K |
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719 static struct PyModuleDef parsers_module = { |
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720 PyModuleDef_HEAD_INIT, |
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721 "parsers", |
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722 parsers_doc, |
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723 -1, |
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724 methods |
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725 }; |
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726 |
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727 PyMODINIT_FUNC PyInit_parsers(void) |
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728 { |
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729 PyObject *mod = PyModule_Create(&parsers_module); |
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730 module_init(mod); |
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731 return mod; |
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732 } |
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733 #else |
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734 PyMODINIT_FUNC initparsers(void) |
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735 { |
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736 PyObject *mod = Py_InitModule3("parsers", methods, parsers_doc); |
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737 module_init(mod); |
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738 } |
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739 #endif |
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740 |