[PATCH v2 1/8] make_transient_cache_entry(): optionally alloc from mem_pool
- From
Matheus Tavares <matheus.bernardino@usp.br>
- Date
- Apr 30, 2021, 21:40 UTC
- Message-ID
- <f870040bfb3e73ee8cd27352b0acc65bb54be560.1619818517.git.matheus.bernardino@usp.br>
- In-Reply-To
- <cover.1619818517.git.matheus.bernardino@usp.br>
Allow make_transient_cache_entry() to optionally receive a mem_pool struct in which it should allocate the entry. This will be used in the following patch, to store some transient entries which should persist until parallel checkout finishes.
Signed-off-by: Matheus Tavares <matheus.bernardino@usp.br> --- builtin/checkout--worker.c | 2 +- builtin/checkout.c | 2 +- builtin/difftool.c | 2 +- cache.h | 11 ++++++----- read-cache.c | 12 ++++++++---- unpack-trees.c | 2 +- 6 files changed, 18 insertions(+), 13 deletions(-)
diff --git a/builtin/checkout--worker.c b/builtin/checkout--worker.c index 31e0de2f7e..289a9b8f89 100644 --- a/builtin/checkout--worker.c +++ b/builtin/checkout--worker.c @@ -39,7 +39,7 @@ static void packet_to_pc_item(const char *buffer, int len, } memset(pc_item, 0, sizeof(*pc_item)); - pc_item->ce = make_empty_transient_cache_entry(fixed_portion->name_len); + pc_item->ce = make_empty_transient_cache_entry(fixed_portion->name_len, NULL); pc_item->ce->ce_namelen = fixed_portion->name_len; pc_item->ce->ce_mode = fixed_portion->ce_mode; memcpy(pc_item->ce->name, variant, pc_item->ce->ce_namelen); diff --git a/builtin/checkout.c b/builtin/checkout.c index 4c696ef480..db667d0267 100644 --- a/builtin/checkout.c +++ b/builtin/checkout.c @@ -291,7 +291,7 @@ static int checkout_merged(int pos, const struct checkout *state, int *nr_checko if (write_object_file(result_buf.ptr, result_buf.size, blob_type, &oid)) die(_("Unable to add merge result for '%s'"), path); free(result_buf.ptr); - ce = make_transient_cache_entry(mode, &oid, path, 2); + ce = make_transient_cache_entry(mode, &oid, path, 2, NULL); if (!ce) die(_("make_cache_entry failed for path '%s'"), path); status = checkout_entry(ce, state, NULL, nr_checkouts); diff --git a/builtin/difftool.c b/builtin/difftool.c index ef25729d49..afacbcd581 100644 --- a/builtin/difftool.c +++ b/builtin/difftool.c @@ -323,7 +323,7 @@ static int checkout_path(unsigned mode, struct object_id *oid, struct cache_entry *ce; int ret; - ce = make_transient_cache_entry(mode, oid, path, 0); + ce = make_transient_cache_entry(mode, oid, path, 0, NULL); ret = checkout_entry(ce, state, NULL, NULL); discard_cache_entry(ce); diff --git a/cache.h b/cache.h index 148d9ab5f1..b6b42cc3f3 100644 --- a/cache.h +++ b/cache.h @@ -356,16 +356,17 @@ struct cache_entry *make_empty_cache_entry(struct index_state *istate, size_t name_len); /* - * Create a cache_entry that is not intended to be added to an index. - * Caller is responsible for discarding the cache_entry - * with `discard_cache_entry`. + * Create a cache_entry that is not intended to be added to an index. If `mp` + * is not NULL, the entry is allocated within the given memory pool. Caller is + * responsible for discarding "loose" entries with `discard_cache_entry()` and + * the mem_pool with `mem_pool_discard(mp, should_validate_cache_entries())`. */ struct cache_entry *make_transient_cache_entry(unsigned int mode, const struct object_id *oid, const char *path, - int stage); + int stage, struct mem_pool *mp); -struct cache_entry *make_empty_transient_cache_entry(size_t name_len); +struct cache_entry *make_empty_transient_cache_entry(size_t len, struct mem_pool *mp); /* * Discard cache entry. diff --git a/read-cache.c b/read-cache.c index 5a907af2fb..eb389ccb8f 100644 --- a/read-cache.c +++ b/read-cache.c @@ -813,8 +813,10 @@ struct cache_entry *make_empty_cache_entry(struct index_state *istate, size_t le return mem_pool__ce_calloc(find_mem_pool(istate), len); } -struct cache_entry *make_empty_transient_cache_entry(size_t len) +struct cache_entry *make_empty_transient_cache_entry(size_t len, struct mem_pool *mp) { + if (mp) + return mem_pool__ce_calloc(mp, len); return xcalloc(1, cache_entry_size(len)); } @@ -848,8 +850,10 @@ struct cache_entry *make_cache_entry(struct index_state *istate, return ret; } -struct cache_entry *make_transient_cache_entry(unsigned int mode, const struct object_id *oid, - const char *path, int stage) +struct cache_entry *make_transient_cache_entry(unsigned int mode, + const struct object_id *oid, + const char *path, int stage, + struct mem_pool *mp) { struct cache_entry *ce; int len; @@ -860,7 +864,7 @@ struct cache_entry *make_transient_cache_entry(unsigned int mode, const struct o } len = strlen(path); - ce = make_empty_transient_cache_entry(len); + ce = make_empty_transient_cache_entry(len, mp); oidcpy(&ce->oid, oid); memcpy(ce->name, path, len); diff --git a/unpack-trees.c b/unpack-trees.c index 4b77e52c6b..fa5b7ab7ee 100644 --- a/unpack-trees.c +++ b/unpack-trees.c @@ -1034,7 +1034,7 @@ static struct cache_entry *create_ce_entry(const struct traverse_info *info, size_t len = traverse_path_len(info, tree_entry_len(n)); struct cache_entry *ce = is_transient ? - make_empty_transient_cache_entry(len) : + make_empty_transient_cache_entry(len, NULL) : make_empty_cache_entry(istate, len); ce->ce_mode = create_ce_mode(n->mode);
-- 2.30.1