Mercurial > hg
view mercurial/bitmanipulation.h @ 48448:62e6222cc5b6
upgrade: only process revlogs that needs it by default
We have more and more requirement that does not affect revlog or that only
affect some of them. It is silly to force a full processing of all revlog to
juste move the requirement around, or to simply rewrite the dirstate.
So now, only the revlog that needs to be touched will be touched. Unless the
--changelog & al flags are used.
Differential Revision: https://phab.mercurial-scm.org/D11871
author | Pierre-Yves David <pierre-yves.david@octobus.net> |
---|---|
date | Mon, 06 Dec 2021 17:54:39 +0100 |
parents | d86908050375 |
children |
line wrap: on
line source
#ifndef HG_BITMANIPULATION_H #define HG_BITMANIPULATION_H #include <string.h> #include "compat.h" /* Reads a 64 bit integer from big-endian bytes. Assumes that the data is long enough */ static inline uint64_t getbe64(const char *c) { const unsigned char *d = (const unsigned char *)c; return ((((uint64_t)d[0]) << 56) | (((uint64_t)d[1]) << 48) | (((uint64_t)d[2]) << 40) | (((uint64_t)d[3]) << 32) | (((uint64_t)d[4]) << 24) | (((uint64_t)d[5]) << 16) | (((uint64_t)d[6]) << 8) | (d[7])); } static inline uint32_t getbe32(const char *c) { const unsigned char *d = (const unsigned char *)c; return ((((uint32_t)d[0]) << 24) | (((uint32_t)d[1]) << 16) | (((uint32_t)d[2]) << 8) | (d[3])); } static inline int16_t getbeint16(const char *c) { const unsigned char *d = (const unsigned char *)c; return ((d[0] << 8) | (d[1])); } static inline uint16_t getbeuint16(const char *c) { const unsigned char *d = (const unsigned char *)c; return ((d[0] << 8) | (d[1])); } /* Writes a 64 bit integer to bytes in a big-endian format. Assumes that the buffer is long enough */ static inline void putbe64(uint64_t x, char *c) { c[0] = (x >> 56) & 0xff; c[1] = (x >> 48) & 0xff; c[2] = (x >> 40) & 0xff; c[3] = (x >> 32) & 0xff; c[4] = (x >> 24) & 0xff; c[5] = (x >> 16) & 0xff; c[6] = (x >> 8) & 0xff; c[7] = (x)&0xff; } static inline void putbe32(uint32_t x, char *c) { c[0] = (x >> 24) & 0xff; c[1] = (x >> 16) & 0xff; c[2] = (x >> 8) & 0xff; c[3] = (x)&0xff; } static inline double getbefloat64(const char *c) { const unsigned char *d = (const unsigned char *)c; double ret; int i; uint64_t t = 0; for (i = 0; i < 8; i++) { t = (t << 8) + d[i]; } memcpy(&ret, &t, sizeof(t)); return ret; } #endif