diff options
Diffstat (limited to 'packfile.c')
| -rw-r--r-- | packfile.c | 85 |
1 files changed, 31 insertions, 54 deletions
@@ -6,7 +6,6 @@ #include "mergesort.h" #include "packfile.h" #include "delta.h" -#include "list.h" #include "streaming.h" #include "sha1-lookup.h" #include "commit.h" @@ -17,14 +16,15 @@ #include "object-store.h" #include "midx.h" #include "commit-graph.h" +#include "promisor-remote.h" char *odb_pack_name(struct strbuf *buf, - const unsigned char *sha1, + const unsigned char *hash, const char *ext) { strbuf_reset(buf); strbuf_addf(buf, "%s/pack/pack-%s.%s", get_object_directory(), - sha1_to_hex(sha1), ext); + hash_to_hex(hash), ext); return buf->buf; } @@ -287,13 +287,6 @@ static int unuse_one_window(struct packed_git *current) return 0; } -void release_pack_memory(size_t need) -{ - size_t cur = pack_mapped; - while (need >= (cur - pack_mapped) && unuse_one_window(NULL)) - ; /* nothing */ -} - void close_pack_windows(struct packed_git *p) { while (p->windows) { @@ -517,7 +510,6 @@ static int open_packed_git_1(struct packed_git *p) struct pack_header hdr; unsigned char hash[GIT_MAX_RAWSZ]; unsigned char *idx_hash; - long fd_flag; ssize_t read_result; const unsigned hashsz = the_hash_algo->rawsz; @@ -561,16 +553,6 @@ static int open_packed_git_1(struct packed_git *p) } else if (p->pack_size != st.st_size) return error("packfile %s size changed", p->pack_name); - /* We leave these file descriptors open with sliding mmap; - * there is no point keeping them open across exec(), though. - */ - fd_flag = fcntl(p->pack_fd, F_GETFD, 0); - if (fd_flag < 0) - return error("cannot determine file descriptor flags"); - fd_flag |= FD_CLOEXEC; - if (fcntl(p->pack_fd, F_SETFD, fd_flag) == -1) - return error("cannot set FD_CLOEXEC"); - /* Verify we recognize this pack file format. */ read_result = read_in_full(p->pack_fd, &hdr, sizeof(hdr)); if (read_result < 0) @@ -594,9 +576,8 @@ static int open_packed_git_1(struct packed_git *p) " while index indicates %"PRIu32" objects", p->pack_name, ntohl(hdr.hdr_entries), p->num_objects); - if (lseek(p->pack_fd, p->pack_size - hashsz, SEEK_SET) == -1) - return error("end of packfile %s is unavailable", p->pack_name); - read_result = read_in_full(p->pack_fd, hash, hashsz); + read_result = pread_in_full(p->pack_fd, hash, hashsz, + p->pack_size - hashsz); if (read_result < 0) return error_errno("error reading from %s", p->pack_name); if (read_result != hashsz) @@ -710,23 +691,12 @@ void unuse_pack(struct pack_window **w_cursor) } } -static void try_to_free_pack_memory(size_t size) -{ - release_pack_memory(size); -} - struct packed_git *add_packed_git(const char *path, size_t path_len, int local) { - static int have_set_try_to_free_routine; struct stat st; size_t alloc; struct packed_git *p; - if (!have_set_try_to_free_routine) { - have_set_try_to_free_routine = 1; - set_try_to_free_routine(try_to_free_pack_memory); - } - /* * Make sure a corresponding .pack file exists and that * the index looks sane. @@ -775,6 +745,9 @@ void install_packed_git(struct repository *r, struct packed_git *pack) pack->next = r->objects->packed_git; r->objects->packed_git = pack; + + hashmap_entry_init(&pack->packmap_ent, strhash(pack->pack_name)); + hashmap_add(&r->objects->pack_map, &pack->packmap_ent); } void (*report_garbage)(unsigned seen_bits, const char *path); @@ -874,20 +847,18 @@ static void prepare_pack(const char *full_name, size_t full_name_len, if (strip_suffix_mem(full_name, &base_len, ".idx") && !(data->m && midx_contains_pack(data->m, file_name))) { - /* Don't reopen a pack we already have. */ - for (p = data->r->objects->packed_git; p; p = p->next) { - size_t len; - if (strip_suffix(p->pack_name, ".pack", &len) && - len == base_len && - !memcmp(p->pack_name, full_name, len)) - break; - } + struct hashmap_entry hent; + char *pack_name = xstrfmt("%.*s.pack", (int)base_len, full_name); + unsigned int hash = strhash(pack_name); + hashmap_entry_init(&hent, hash); - if (!p) { + /* Don't reopen a pack we already have. */ + if (!hashmap_get(&data->r->objects->pack_map, &hent, pack_name)) { p = add_packed_git(full_name, full_name_len, data->local); if (p) install_packed_git(data->r, p); } + free(pack_name); } if (!report_garbage) @@ -1361,7 +1332,7 @@ struct delta_base_cache_key { }; struct delta_base_cache_entry { - struct hashmap hash; + struct hashmap_entry ent; struct delta_base_cache_key key; struct list_head lru; void *data; @@ -1381,7 +1352,7 @@ static unsigned int pack_entry_hash(struct packed_git *p, off_t base_offset) static struct delta_base_cache_entry * get_delta_base_cache_entry(struct packed_git *p, off_t base_offset) { - struct hashmap_entry entry; + struct hashmap_entry entry, *e; struct delta_base_cache_key key; if (!delta_base_cache.cmpfn) @@ -1390,7 +1361,8 @@ get_delta_base_cache_entry(struct packed_git *p, off_t base_offset) hashmap_entry_init(&entry, pack_entry_hash(p, base_offset)); key.p = p; key.base_offset = base_offset; - return hashmap_get(&delta_base_cache, &entry, &key); + e = hashmap_get(&delta_base_cache, &entry, &key); + return e ? container_of(e, struct delta_base_cache_entry, ent) : NULL; } static int delta_base_cache_key_eq(const struct delta_base_cache_key *a, @@ -1400,11 +1372,16 @@ static int delta_base_cache_key_eq(const struct delta_base_cache_key *a, } static int delta_base_cache_hash_cmp(const void *unused_cmp_data, - const void *va, const void *vb, + const struct hashmap_entry *va, + const struct hashmap_entry *vb, const void *vkey) { - const struct delta_base_cache_entry *a = va, *b = vb; + const struct delta_base_cache_entry *a, *b; const struct delta_base_cache_key *key = vkey; + + a = container_of(va, const struct delta_base_cache_entry, ent); + b = container_of(vb, const struct delta_base_cache_entry, ent); + if (key) return !delta_base_cache_key_eq(&a->key, key); else @@ -1423,7 +1400,7 @@ static int in_delta_base_cache(struct packed_git *p, off_t base_offset) */ static void detach_delta_base_cache_entry(struct delta_base_cache_entry *ent) { - hashmap_remove(&delta_base_cache, ent, &ent->key); + hashmap_remove(&delta_base_cache, &ent->ent, &ent->key); list_del(&ent->lru); delta_base_cached -= ent->size; free(ent); @@ -1487,8 +1464,8 @@ static void add_delta_base_cache(struct packed_git *p, off_t base_offset, if (!delta_base_cache.cmpfn) hashmap_init(&delta_base_cache, delta_base_cache_hash_cmp, NULL, 0); - hashmap_entry_init(ent, pack_entry_hash(p, base_offset)); - hashmap_add(&delta_base_cache, ent); + hashmap_entry_init(&ent->ent, pack_entry_hash(p, base_offset)); + hashmap_add(&delta_base_cache, &ent->ent); } int packed_object_info(struct repository *r, struct packed_git *p, @@ -2139,7 +2116,7 @@ static int add_promisor_object(const struct object_id *oid, oidset_insert(set, &parents->item->object.oid); } else if (obj->type == OBJ_TAG) { struct tag *tag = (struct tag *) obj; - oidset_insert(set, &tag->tagged->oid); + oidset_insert(set, get_tagged_oid(tag)); } return 0; } @@ -2150,7 +2127,7 @@ int is_promisor_object(const struct object_id *oid) static int promisor_objects_prepared; if (!promisor_objects_prepared) { - if (repository_format_partial_clone) { + if (has_promisor_remote()) { for_each_packed_object(add_promisor_object, &promisor_objects, FOR_EACH_OBJECT_PROMISOR_ONLY); |