root/csum-file.h

INCLUDED FROM

DEFINITIONS

1. sha1write_u8
2. sha1write_be32

#ifndef CSUM_FILE_H
#define CSUM_FILE_H

struct progress;

/* A SHA1-protected file */
struct sha1file {
        int fd;
        int check_fd;
        unsigned int offset;
        git_SHA_CTX ctx;
        off_t total;
        struct progress *tp;
        const char *name;
        int do_crc;
        uint32_t crc32;
        unsigned char buffer[8192];
};

/* Checkpoint */
struct sha1file_checkpoint {
        off_t offset;
        git_SHA_CTX ctx;
};

extern void sha1file_checkpoint(struct sha1file *, struct sha1file_checkpoint *);
extern int sha1file_truncate(struct sha1file *, struct sha1file_checkpoint *);

/* sha1close flags */
#define CSUM_CLOSE      1
#define CSUM_FSYNC      2

extern struct sha1file *sha1fd(int fd, const char *name);
extern struct sha1file *sha1fd_check(const char *name);
extern struct sha1file *sha1fd_throughput(int fd, const char *name, struct progress *tp);
extern int sha1close(struct sha1file *, unsigned char *, unsigned int);
extern void sha1write(struct sha1file *, const void *, unsigned int);
extern void sha1flush(struct sha1file *f);
extern void crc32_begin(struct sha1file *);
extern uint32_t crc32_end(struct sha1file *);

static inline void sha1write_u8(struct sha1file *f, uint8_t data)
{
        sha1write(f, &data, sizeof(data));
}

static inline void sha1write_be32(struct sha1file *f, uint32_t data)
{
        data = htonl(data);
        sha1write(f, &data, sizeof(data));
}

#endif