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1b6b2bfae5
More leak fixes. * ps/leakfixes-part-4: (22 commits) builtin/diff: free symmetric diff members diff: free state populated via options builtin/log: fix leak when showing converted blob contents userdiff: fix leaking memory for configured diff drivers builtin/format-patch: fix various trivial memory leaks diff: fix leak when parsing invalid ignore regex option unpack-trees: clear index when not propagating it sequencer: release todo list on error paths merge-ort: unconditionally release attributes index builtin/fast-export: plug leaking tag names builtin/fast-export: fix leaking diff options builtin/fast-import: plug trivial memory leaks builtin/notes: fix leaking `struct notes_tree` when merging notes builtin/rebase: fix leaking `commit.gpgsign` value config: fix leaking comment character config submodule-config: fix leaking name entry when traversing submodules read-cache: fix leaking hashfile when writing index fails bulk-checkin: fix leaking state TODO object-name: fix leaking symlink paths in object context object-file: fix memory leak when reading corrupted headers ...
97 lines
2.4 KiB
C
97 lines
2.4 KiB
C
#ifndef CSUM_FILE_H
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#define CSUM_FILE_H
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#include "hash.h"
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#include "write-or-die.h"
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struct progress;
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/* A SHA1-protected file */
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struct hashfile {
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int fd;
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int check_fd;
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unsigned int offset;
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git_hash_ctx ctx;
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off_t total;
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struct progress *tp;
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const char *name;
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int do_crc;
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uint32_t crc32;
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size_t buffer_len;
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unsigned char *buffer;
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unsigned char *check_buffer;
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/**
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* If non-zero, skip_hash indicates that we should
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* not actually compute the hash for this hashfile and
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* instead only use it as a buffered write.
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*/
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int skip_hash;
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};
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/* Checkpoint */
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struct hashfile_checkpoint {
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off_t offset;
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git_hash_ctx ctx;
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};
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void hashfile_checkpoint(struct hashfile *, struct hashfile_checkpoint *);
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int hashfile_truncate(struct hashfile *, struct hashfile_checkpoint *);
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/* finalize_hashfile flags */
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#define CSUM_CLOSE 1
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#define CSUM_FSYNC 2
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#define CSUM_HASH_IN_STREAM 4
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struct hashfile *hashfd(int fd, const char *name);
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struct hashfile *hashfd_check(const char *name);
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struct hashfile *hashfd_throughput(int fd, const char *name, struct progress *tp);
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/*
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* Free the hashfile without flushing its contents to disk. This only
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* needs to be called when not calling `finalize_hashfile()`.
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*/
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void free_hashfile(struct hashfile *f);
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/*
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* Finalize the hashfile by flushing data to disk and free'ing it.
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*/
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int finalize_hashfile(struct hashfile *, unsigned char *, enum fsync_component, unsigned int);
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void discard_hashfile(struct hashfile *);
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void hashwrite(struct hashfile *, const void *, unsigned int);
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void hashflush(struct hashfile *f);
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void crc32_begin(struct hashfile *);
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uint32_t crc32_end(struct hashfile *);
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/* Verify checksum validity while reading. Returns non-zero on success. */
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int hashfile_checksum_valid(const unsigned char *data, size_t len);
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/*
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* Returns the total number of bytes fed to the hashfile so far (including ones
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* that have not been written out to the descriptor yet).
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*/
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static inline off_t hashfile_total(struct hashfile *f)
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{
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return f->total + f->offset;
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}
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static inline void hashwrite_u8(struct hashfile *f, uint8_t data)
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{
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hashwrite(f, &data, sizeof(data));
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}
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static inline void hashwrite_be32(struct hashfile *f, uint32_t data)
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{
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data = htonl(data);
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hashwrite(f, &data, sizeof(data));
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}
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static inline size_t hashwrite_be64(struct hashfile *f, uint64_t data)
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{
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data = htonll(data);
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hashwrite(f, &data, sizeof(data));
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return sizeof(data);
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}
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#endif
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