diff options
Diffstat (limited to 'csum-file.h')
| -rw-r--r-- | csum-file.h | 35 |
1 files changed, 32 insertions, 3 deletions
diff --git a/csum-file.h b/csum-file.h index a98b1ee..bc5bec2 100644 --- a/csum-file.h +++ b/csum-file.h @@ -1,7 +1,8 @@ #ifndef CSUM_FILE_H #define CSUM_FILE_H -#include "hash.h" +#include "hash-ll.h" +#include "write-or-die.h" struct progress; @@ -16,7 +17,16 @@ struct hashfile { const char *name; int do_crc; uint32_t crc32; - unsigned char buffer[8192]; + size_t buffer_len; + unsigned char *buffer; + unsigned char *check_buffer; + + /** + * If non-zero, skip_hash indicates that we should + * not actually compute the hash for this hashfile and + * instead only use it as a buffered write. + */ + int skip_hash; }; /* Checkpoint */ @@ -36,12 +46,24 @@ int hashfile_truncate(struct hashfile *, struct hashfile_checkpoint *); 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); +int finalize_hashfile(struct hashfile *, unsigned char *, enum fsync_component, 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 *); +/* Verify checksum validity while reading. Returns non-zero on success. */ +int hashfile_checksum_valid(const unsigned char *data, size_t len); + +/* + * Returns the total number of bytes fed to the hashfile so far (including ones + * that have not been written out to the descriptor yet). + */ +static inline off_t hashfile_total(struct hashfile *f) +{ + return f->total + f->offset; +} + static inline void hashwrite_u8(struct hashfile *f, uint8_t data) { hashwrite(f, &data, sizeof(data)); @@ -53,4 +75,11 @@ static inline void hashwrite_be32(struct hashfile *f, uint32_t data) hashwrite(f, &data, sizeof(data)); } +static inline size_t hashwrite_be64(struct hashfile *f, uint64_t data) +{ + data = htonll(data); + hashwrite(f, &data, sizeof(data)); + return sizeof(data); +} + #endif |