Merge branch 'mc/commit-doc-grammofix' into maint
[git.git] / csum-file.h
blob7530927d774562f82636aa773481ae93600c1756
1 #ifndef CSUM_FILE_H
2 #define CSUM_FILE_H
4 struct progress;
6 /* A SHA1-protected file */
7 struct sha1file {
8 int fd;
9 int check_fd;
10 unsigned int offset;
11 git_SHA_CTX ctx;
12 off_t total;
13 struct progress *tp;
14 const char *name;
15 int do_crc;
16 uint32_t crc32;
17 unsigned char buffer[8192];
20 /* Checkpoint */
21 struct sha1file_checkpoint {
22 off_t offset;
23 git_SHA_CTX ctx;
26 extern void sha1file_checkpoint(struct sha1file *, struct sha1file_checkpoint *);
27 extern int sha1file_truncate(struct sha1file *, struct sha1file_checkpoint *);
29 /* sha1close flags */
30 #define CSUM_CLOSE 1
31 #define CSUM_FSYNC 2
33 extern struct sha1file *sha1fd(int fd, const char *name);
34 extern struct sha1file *sha1fd_check(const char *name);
35 extern struct sha1file *sha1fd_throughput(int fd, const char *name, struct progress *tp);
36 extern int sha1close(struct sha1file *, unsigned char *, unsigned int);
37 extern void sha1write(struct sha1file *, const void *, unsigned int);
38 extern void sha1flush(struct sha1file *f);
39 extern void crc32_begin(struct sha1file *);
40 extern uint32_t crc32_end(struct sha1file *);
42 static inline void sha1write_u8(struct sha1file *f, uint8_t data)
44 sha1write(f, &data, sizeof(data));
47 static inline void sha1write_be32(struct sha1file *f, uint32_t data)
49 data = htonl(data);
50 sha1write(f, &data, sizeof(data));
53 #endif