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-rw-r--r--object-store.h65
1 files changed, 32 insertions, 33 deletions
diff --git a/object-store.h b/object-store.h
index 2b5e6ff..ba57630 100644
--- a/object-store.h
+++ b/object-store.h
@@ -7,41 +7,34 @@
#include "sha1-array.h"
#include "strbuf.h"
-struct alternate_object_database {
- struct alternate_object_database *next;
-
- /* see alt_scratch_buf() */
- struct strbuf scratch;
- size_t base_len;
+struct object_directory {
+ struct object_directory *next;
/*
- * Used to store the results of readdir(3) calls when searching
- * for unique abbreviated hashes. This cache is never
- * invalidated, thus it's racy and not necessarily accurate.
- * That's fine for its purpose; don't use it for tasks requiring
- * greater accuracy!
+ * Used to store the results of readdir(3) calls when we are OK
+ * sacrificing accuracy due to races for speed. That includes
+ * object existence with OBJECT_INFO_QUICK, as well as
+ * our search for unique abbreviated hashes. Don't use it for tasks
+ * requiring greater accuracy!
+ *
+ * Be sure to call odb_load_loose_cache() before using.
*/
char loose_objects_subdir_seen[256];
- struct oid_array loose_objects_cache;
+ struct oid_array loose_objects_cache[256];
/*
* Path to the alternative object store. If this is a relative path,
* it is relative to the current working directory.
*/
- char path[FLEX_ARRAY];
+ char *path;
};
+
void prepare_alt_odb(struct repository *r);
char *compute_alternate_path(const char *path, struct strbuf *err);
-typedef int alt_odb_fn(struct alternate_object_database *, void *);
+typedef int alt_odb_fn(struct object_directory *, void *);
int foreach_alt_odb(alt_odb_fn, void*);
/*
- * Allocate a "struct alternate_object_database" but do _not_ actually
- * add it to the list of alternates.
- */
-struct alternate_object_database *alloc_alt_odb(const char *dir);
-
-/*
* Add the directory to the on-disk alternates file; the new entry will also
* take effect in the current process.
*/
@@ -55,12 +48,14 @@ void add_to_alternates_file(const char *dir);
void add_to_alternates_memory(const char *dir);
/*
- * Returns a scratch strbuf pre-filled with the alternate object directory,
- * including a trailing slash, which can be used to access paths in the
- * alternate. Always use this over direct access to alt->scratch, as it
- * cleans up any previous use of the scratch buffer.
+ * Populate and return the loose object cache array corresponding to the
+ * given object ID.
*/
-struct strbuf *alt_scratch_buf(struct alternate_object_database *alt);
+struct oid_array *odb_loose_cache(struct object_directory *odb,
+ const struct object_id *oid);
+
+/* Empty the loose object cache for the specified object directory. */
+void odb_clear_loose_cache(struct object_directory *odb);
struct packed_git {
struct packed_git *next;
@@ -92,17 +87,21 @@ struct multi_pack_index;
struct raw_object_store {
/*
- * Path to the repository's object store.
- * Cannot be NULL after initialization.
+ * Set of all object directories; the main directory is first (and
+ * cannot be NULL after initialization). Subsequent directories are
+ * alternates.
*/
- char *objectdir;
+ struct object_directory *odb;
+ struct object_directory **odb_tail;
+ int loaded_alternates;
- /* Path to extra alternate object database if not NULL */
+ /*
+ * A list of alternate object directories loaded from the environment;
+ * this should not generally need to be accessed directly, but will
+ * populate the "odb" list when prepare_alt_odb() is run.
+ */
char *alternate_db;
- struct alternate_object_database *alt_odb_list;
- struct alternate_object_database **alt_odb_tail;
-
/*
* Objects that should be substituted by other objects
* (see git-replace(1)).
@@ -157,7 +156,7 @@ void raw_object_store_clear(struct raw_object_store *o);
* Put in `buf` the name of the file in the local object database that
* would be used to store a loose object with the specified sha1.
*/
-void sha1_file_name(struct repository *r, struct strbuf *buf, const unsigned char *sha1);
+const char *loose_object_path(struct repository *r, struct strbuf *buf, const unsigned char *sha1);
void *map_sha1_file(struct repository *r, const unsigned char *sha1, unsigned long *size);