Merge pull request #1436 from schu/opts-cache-size

opts: allow configuration of odb cache size

2 files changed, 12 insertions, 1 deletions

diff --git a/src/odb.c b/src/odb.c
index 5a0d8871a..c98df247c 100644
--- a/src/odb.c
+++ b/src/odb.c
@@ -32,6 +32,8 @@ typedef struct
 	int is_alternate;
 } backend_internal;
 
+size_t git_odb__cache_size = GIT_DEFAULT_CACHE_SIZE;
+
 static int load_alternates(git_odb *odb, const char *objects_dir, int alternate_depth);
 
 int git_odb__format_object_header(char *hdr, size_t n, size_t obj_len, git_otype obj_type)
@@ -351,7 +353,7 @@ int git_odb_new(git_odb **out)
 	git_odb *db = git__calloc(1, sizeof(*db));
 	GITERR_CHECK_ALLOC(db);
 
-	if (git_cache_init(&db->cache, GIT_DEFAULT_CACHE_SIZE, &free_odb_object) < 0 ||
+	if (git_cache_init(&db->cache, git_odb__cache_size, &free_odb_object) < 0 ||
 		git_vector_init(&db->backends, 4, backend_sort_cmp) < 0)
 	{
 		git__free(db);
diff --git a/src/util.c b/src/util.c
index f5b4a1d68..44ac1af73 100644
--- a/src/util.c
+++ b/src/util.c
@@ -38,6 +38,7 @@ int git_libgit2_capabilities()
 /* Declarations for tuneable settings */
 extern size_t git_mwindow__window_size;
 extern size_t git_mwindow__mapped_limit;
+extern size_t git_odb__cache_size;
 
 static int config_level_to_futils_dir(int config_level)
 {
@@ -92,6 +93,14 @@ int git_libgit2_opts(int key, ...)
 		if ((error = config_level_to_futils_dir(va_arg(ap, int))) >= 0)
 			error = git_futils_dirs_set(error, va_arg(ap, const char *));
 		break;
+
+	case GIT_OPT_GET_ODB_CACHE_SIZE:
+		*(va_arg(ap, size_t *)) = git_odb__cache_size;
+		break;
+
+	case GIT_OPT_SET_ODB_CACHE_SIZE:
+		git_odb__cache_size = va_arg(ap, size_t);
+		break;
 	}
 
 	va_end(ap);