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merge(third_party/git): Merge squashed git subtree at v2.23.0

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Merge commit '1b593e1ea4' as 'third_party/git'
This commit is contained in:
Vincent Ambo 2020-01-11 23:36:56 +00:00
commit 7ef0d62730
3629 changed files with 1139935 additions and 0 deletions
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56
third_party/git/csum-file.h vendored Normal file
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@ -0,0 +1,56 @@
#ifndef CSUM_FILE_H
#define CSUM_FILE_H
#include "hash.h"
struct progress;
/* A SHA1-protected file */
struct hashfile {
int fd;
int check_fd;
unsigned int offset;
git_hash_ctx ctx;
off_t total;
struct progress *tp;
const char *name;
int do_crc;
uint32_t crc32;
unsigned char buffer[8192];
};
/* Checkpoint */
struct hashfile_checkpoint {
off_t offset;
git_hash_ctx ctx;
};
void hashfile_checkpoint(struct hashfile *, struct hashfile_checkpoint *);
int hashfile_truncate(struct hashfile *, struct hashfile_checkpoint *);
/* finalize_hashfile flags */
#define CSUM_CLOSE 1
#define CSUM_FSYNC 2
#define CSUM_HASH_IN_STREAM 4
struct hashfile *hashfd(int fd, const char *name);
struct hashfile *hashfd_check(const char *name);
struct hashfile *hashfd_throughput(int fd, const char *name, struct progress *tp);
int finalize_hashfile(struct hashfile *, unsigned char *, unsigned int);
void hashwrite(struct hashfile *, const void *, unsigned int);
void hashflush(struct hashfile *f);
void crc32_begin(struct hashfile *);
uint32_t crc32_end(struct hashfile *);
static inline void hashwrite_u8(struct hashfile *f, uint8_t data)
{
hashwrite(f, &data, sizeof(data));
}
static inline void hashwrite_be32(struct hashfile *f, uint32_t data)
{
data = htonl(data);
hashwrite(f, &data, sizeof(data));
}
#endif