From 0ef95f72f878184fbce8d7c855ab4346c081abed Mon Sep 17 00:00:00 2001 From: Nicolas Pitre Date: Thu, 3 Sep 2009 21:54:03 -0400 Subject: [PATCH] pack-objects: free preferred base memory after usage When adding objects for preferred delta base, the content from tree objects leading to given paths is kept in a cache. This has the potential to grow significantly, especially with large directories as the whole tree object content is loaded in memory, even if in practice the number of those objects is limited to the 256 cache entries plus the $window root tree objects. Still, that can't hurt freeing that up after object enumeration is done, and before more memory is needed for delta search. Signed-off-by: Nicolas Pitre Signed-off-by: Junio C Hamano --- builtin-pack-objects.c | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) diff --git a/builtin-pack-objects.c b/builtin-pack-objects.c index 941cc2d73..b44fa0e06 100644 --- a/builtin-pack-objects.c +++ b/builtin-pack-objects.c @@ -1012,6 +1012,33 @@ static void add_preferred_base(unsigned char *sha1) it->pcache.tree_size = size; } +static void cleanup_preferred_base(void) +{ + struct pbase_tree *it; + unsigned i; + + it = pbase_tree; + pbase_tree = NULL; + while (it) { + struct pbase_tree *this = it; + it = this->next; + free(this->pcache.tree_data); + free(this); + } + + for (i = 0; i < ARRAY_SIZE(pbase_tree_cache); i++) { + if (!pbase_tree_cache[i]) + continue; + free(pbase_tree_cache[i]->tree_data); + free(pbase_tree_cache[i]); + pbase_tree_cache[i] = NULL; + } + + free(done_pbase_paths); + done_pbase_paths = NULL; + done_pbase_paths_num = done_pbase_paths_alloc = 0; +} + static void check_object(struct object_entry *entry) { if (entry->in_pack) { @@ -2308,6 +2335,7 @@ int cmd_pack_objects(int argc, const char **argv, const char *prefix) rp_av[rp_ac] = NULL; get_object_list(rp_ac, rp_av); } + cleanup_preferred_base(); if (include_tag && nr_result) for_each_ref(add_ref_tag, NULL); stop_progress(&progress_state); -- 2.26.2