diff options
Diffstat (limited to 'src/indexer.c')
-rw-r--r-- | src/indexer.c | 45 |
1 files changed, 26 insertions, 19 deletions
diff --git a/src/indexer.c b/src/indexer.c index 726667665..f78ca5774 100644 --- a/src/indexer.c +++ b/src/indexer.c @@ -261,18 +261,38 @@ static int read_object_stream(git_packfile_stream *stream) return 0; } +static int crc_object(uint32_t *crc_out, git_mwindow_file *mwf, git_off_t start, git_off_t size) +{ + void *ptr; + uint32_t crc; + unsigned int left, len; + git_mwindow *w = NULL; + + crc = crc32(0L, Z_NULL, 0); + while (size) { + ptr = git_mwindow_open(mwf, &w, start, size, &left); + if (ptr == NULL) + return -1; + + len = min(left, size); + crc = crc32(crc, ptr, len); + size -= len; + start += len; + git_mwindow_close(&w); + } + + *crc_out = htonl(crc); + return 0; +} + static int store_object(git_indexer_stream *idx) { int i; git_oid oid; - void *packed; - unsigned int left; struct entry *entry; git_off_t entry_size; - git_mwindow *w = NULL; struct git_pack_entry *pentry; git_hash_ctx *ctx = &idx->hash_ctx; - git_mwindow_file *mwf = &idx->pack->mwf; git_off_t entry_start = idx->entry_start; entry = git__calloc(1, sizeof(*entry)); @@ -298,15 +318,10 @@ static int store_object(git_indexer_stream *idx) } git_oid_cpy(&entry->oid, &oid); - entry->crc = crc32(0L, Z_NULL, 0); - packed = git_mwindow_open(mwf, &w, entry_start, entry_size, &left); - if (packed == NULL) + if (crc_object(&entry->crc, &idx->pack->mwf, entry_start, entry_size) < 0) goto on_error; - entry->crc = htonl(crc32(entry->crc, packed, (uInt)entry_size)); - git_mwindow_close(&w); - /* Add the object to the list */ if (git_vector_insert(&idx->objects, entry) < 0) goto on_error; @@ -327,12 +342,8 @@ static int hash_and_save(git_indexer_stream *idx, git_rawobj *obj, git_off_t ent { int i; git_oid oid; - void *packed; size_t entry_size; - unsigned int left; struct entry *entry; - git_mwindow *w = NULL; - git_mwindow_file *mwf = &idx->pack->mwf; struct git_pack_entry *pentry; entry = git__calloc(1, sizeof(*entry)); @@ -365,13 +376,9 @@ static int hash_and_save(git_indexer_stream *idx, git_rawobj *obj, git_off_t ent entry->crc = crc32(0L, Z_NULL, 0); entry_size = (size_t)(idx->off - entry_start); - packed = git_mwindow_open(mwf, &w, entry_start, entry_size, &left); - if (packed == NULL) + if (crc_object(&entry->crc, &idx->pack->mwf, entry_start, entry_size) < 0) goto on_error; - entry->crc = htonl(crc32(entry->crc, packed, (uInt)entry_size)); - git_mwindow_close(&w); - /* Add the object to the list */ if (git_vector_insert(&idx->objects, entry) < 0) goto on_error; |