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27 results

csum-file.h

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    Junio C Hamano authored
    * jk/pack-bitmap:
      pack-bitmap: do not use gcc packed attribute
    3889e7a6
    History
    csum-file.h 1.29 KiB
    #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