Merge branch 'du/cherry-is-plumbing' into maint
[gitweb.git] / object.c
index f7f4de3aaf6d42a6dde5811b37aa8239ac183754..51c45945156c421ada403139faefdf145918f4f7 100644 (file)
--- a/object.c
+++ b/object.c
@@ -1,24 +1,24 @@
 #include "cache.h"
 #include "object.h"
 #include "replace-object.h"
+#include "object-store.h"
 #include "blob.h"
 #include "tree.h"
 #include "commit.h"
 #include "tag.h"
+#include "alloc.h"
 #include "object-store.h"
 #include "packfile.h"
-
-static struct object **obj_hash;
-static int nr_objs, obj_hash_size;
+#include "commit-graph.h"
 
 unsigned int get_max_object_index(void)
 {
-       return obj_hash_size;
+       return the_repository->parsed_objects->obj_hash_size;
 }
 
 struct object *get_indexed_object(unsigned int idx)
 {
-       return obj_hash[idx];
+       return the_repository->parsed_objects->obj_hash[idx];
 }
 
 static const char *object_type_strings[] = {
@@ -51,7 +51,7 @@ int type_from_string_gently(const char *str, ssize_t len, int gentle)
        if (gentle)
                return -1;
 
-       die("invalid object type \"%s\"", str);
+       die(_("invalid object type \"%s\""), str);
 }
 
 /*
@@ -85,20 +85,20 @@ static void insert_obj_hash(struct object *obj, struct object **hash, unsigned i
  * Look up the record for the given sha1 in the hash map stored in
  * obj_hash.  Return NULL if it was not found.
  */
-struct object *lookup_object(const unsigned char *sha1)
+struct object *lookup_object(struct repository *r, const unsigned char *sha1)
 {
        unsigned int i, first;
        struct object *obj;
 
-       if (!obj_hash)
+       if (!r->parsed_objects->obj_hash)
                return NULL;
 
-       first = i = hash_obj(sha1, obj_hash_size);
-       while ((obj = obj_hash[i]) != NULL) {
+       first = i = hash_obj(sha1, r->parsed_objects->obj_hash_size);
+       while ((obj = r->parsed_objects->obj_hash[i]) != NULL) {
                if (!hashcmp(sha1, obj->oid.hash))
                        break;
                i++;
-               if (i == obj_hash_size)
+               if (i == r->parsed_objects->obj_hash_size)
                        i = 0;
        }
        if (obj && i != first) {
@@ -107,7 +107,8 @@ struct object *lookup_object(const unsigned char *sha1)
                 * that we do not need to walk the hash table the next
                 * time we look for it.
                 */
-               SWAP(obj_hash[i], obj_hash[first]);
+               SWAP(r->parsed_objects->obj_hash[i],
+                    r->parsed_objects->obj_hash[first]);
        }
        return obj;
 }
@@ -117,29 +118,30 @@ struct object *lookup_object(const unsigned char *sha1)
  * power of 2 (but at least 32).  Copy the existing values to the new
  * hash map.
  */
-static void grow_object_hash(void)
+static void grow_object_hash(struct repository *r)
 {
        int i;
        /*
         * Note that this size must always be power-of-2 to match hash_obj
         * above.
         */
-       int new_hash_size = obj_hash_size < 32 ? 32 : 2 * obj_hash_size;
+       int new_hash_size = r->parsed_objects->obj_hash_size < 32 ? 32 : 2 * r->parsed_objects->obj_hash_size;
        struct object **new_hash;
 
        new_hash = xcalloc(new_hash_size, sizeof(struct object *));
-       for (i = 0; i < obj_hash_size; i++) {
-               struct object *obj = obj_hash[i];
+       for (i = 0; i < r->parsed_objects->obj_hash_size; i++) {
+               struct object *obj = r->parsed_objects->obj_hash[i];
+
                if (!obj)
                        continue;
                insert_obj_hash(obj, new_hash, new_hash_size);
        }
-       free(obj_hash);
-       obj_hash = new_hash;
-       obj_hash_size = new_hash_size;
+       free(r->parsed_objects->obj_hash);
+       r->parsed_objects->obj_hash = new_hash;
+       r->parsed_objects->obj_hash_size = new_hash_size;
 }
 
-void *create_object(const unsigned char *sha1, void *o)
+void *create_object(struct repository *r, const unsigned char *sha1, void *o)
 {
        struct object *obj = o;
 
@@ -147,27 +149,28 @@ void *create_object(const unsigned char *sha1, void *o)
        obj->flags = 0;
        hashcpy(obj->oid.hash, sha1);
 
-       if (obj_hash_size - 1 <= nr_objs * 2)
-               grow_object_hash();
+       if (r->parsed_objects->obj_hash_size - 1 <= r->parsed_objects->nr_objs * 2)
+               grow_object_hash(r);
 
-       insert_obj_hash(obj, obj_hash, obj_hash_size);
-       nr_objs++;
+       insert_obj_hash(obj, r->parsed_objects->obj_hash,
+                       r->parsed_objects->obj_hash_size);
+       r->parsed_objects->nr_objs++;
        return obj;
 }
 
-void *object_as_type(struct object *obj, enum object_type type, int quiet)
+void *object_as_type(struct repository *r, struct object *obj, enum object_type type, int quiet)
 {
        if (obj->type == type)
                return obj;
        else if (obj->type == OBJ_NONE) {
                if (type == OBJ_COMMIT)
-                       ((struct commit *)obj)->index = alloc_commit_index();
+                       ((struct commit *)obj)->index = alloc_commit_index(r);
                obj->type = type;
                return obj;
        }
        else {
                if (!quiet)
-                       error("object %s is a %s, not a %s",
+                       error(_("object %s is a %s, not a %s"),
                              oid_to_hex(&obj->oid),
                              type_name(obj->type), type_name(type));
                return NULL;
@@ -176,27 +179,28 @@ void *object_as_type(struct object *obj, enum object_type type, int quiet)
 
 struct object *lookup_unknown_object(const unsigned char *sha1)
 {
-       struct object *obj = lookup_object(sha1);
+       struct object *obj = lookup_object(the_repository, sha1);
        if (!obj)
-               obj = create_object(sha1, alloc_object_node());
+               obj = create_object(the_repository, sha1,
+                                   alloc_object_node(the_repository));
        return obj;
 }
 
-struct object *parse_object_buffer(const struct object_id *oid, enum object_type type, unsigned long size, void *buffer, int *eaten_p)
+struct object *parse_object_buffer(struct repository *r, const struct object_id *oid, enum object_type type, unsigned long size, void *buffer, int *eaten_p)
 {
        struct object *obj;
        *eaten_p = 0;
 
        obj = NULL;
        if (type == OBJ_BLOB) {
-               struct blob *blob = lookup_blob(oid);
+               struct blob *blob = lookup_blob(r, oid);
                if (blob) {
                        if (parse_blob_buffer(blob, buffer, size))
                                return NULL;
                        obj = &blob->object;
                }
        } else if (type == OBJ_TREE) {
-               struct tree *tree = lookup_tree(oid);
+               struct tree *tree = lookup_tree(r, oid);
                if (tree) {
                        obj = &tree->object;
                        if (!tree->buffer)
@@ -208,25 +212,25 @@ struct object *parse_object_buffer(const struct object_id *oid, enum object_type
                        }
                }
        } else if (type == OBJ_COMMIT) {
-               struct commit *commit = lookup_commit(oid);
+               struct commit *commit = lookup_commit(r, oid);
                if (commit) {
-                       if (parse_commit_buffer(commit, buffer, size))
+                       if (parse_commit_buffer(r, commit, buffer, size, 1))
                                return NULL;
-                       if (!get_cached_commit_buffer(commit, NULL)) {
-                               set_commit_buffer(commit, buffer, size);
+                       if (!get_cached_commit_buffer(r, commit, NULL)) {
+                               set_commit_buffer(r, commit, buffer, size);
                                *eaten_p = 1;
                        }
                        obj = &commit->object;
                }
        } else if (type == OBJ_TAG) {
-               struct tag *tag = lookup_tag(oid);
+               struct tag *tag = lookup_tag(r, oid);
                if (tag) {
-                       if (parse_tag_buffer(tag, buffer, size))
+                       if (parse_tag_buffer(r, tag, buffer, size))
                               return NULL;
                        obj = &tag->object;
                }
        } else {
-               warning("object %s has unknown type id %d", oid_to_hex(oid), type);
+               warning(_("object %s has unknown type id %d"), oid_to_hex(oid), type);
                obj = NULL;
        }
        return obj;
@@ -235,46 +239,47 @@ struct object *parse_object_buffer(const struct object_id *oid, enum object_type
 struct object *parse_object_or_die(const struct object_id *oid,
                                   const char *name)
 {
-       struct object *o = parse_object(oid);
+       struct object *o = parse_object(the_repository, oid);
        if (o)
                return o;
 
        die(_("unable to parse object: %s"), name ? name : oid_to_hex(oid));
 }
 
-struct object *parse_object(const struct object_id *oid)
+struct object *parse_object(struct repository *r, const struct object_id *oid)
 {
        unsigned long size;
        enum object_type type;
        int eaten;
-       const struct object_id *repl = lookup_replace_object(the_repository, oid);
+       const struct object_id *repl = lookup_replace_object(r, oid);
        void *buffer;
        struct object *obj;
 
-       obj = lookup_object(oid->hash);
+       obj = lookup_object(r, oid->hash);
        if (obj && obj->parsed)
                return obj;
 
        if ((obj && obj->type == OBJ_BLOB && has_object_file(oid)) ||
            (!obj && has_object_file(oid) &&
-            oid_object_info(the_repository, oid, NULL) == OBJ_BLOB)) {
+            oid_object_info(r, oid, NULL) == OBJ_BLOB)) {
                if (check_object_signature(repl, NULL, 0, NULL) < 0) {
-                       error("sha1 mismatch %s", oid_to_hex(oid));
+                       error(_("sha1 mismatch %s"), oid_to_hex(oid));
                        return NULL;
                }
-               parse_blob_buffer(lookup_blob(oid), NULL, 0);
-               return lookup_object(oid->hash);
+               parse_blob_buffer(lookup_blob(r, oid), NULL, 0);
+               return lookup_object(r, oid->hash);
        }
 
        buffer = read_object_file(oid, &type, &size);
        if (buffer) {
                if (check_object_signature(repl, buffer, size, type_name(type)) < 0) {
                        free(buffer);
-                       error("sha1 mismatch %s", oid_to_hex(repl));
+                       error(_("sha1 mismatch %s"), oid_to_hex(repl));
                        return NULL;
                }
 
-               obj = parse_object_buffer(oid, type, size, buffer, &eaten);
+               obj = parse_object_buffer(r, oid, type, size,
+                                         buffer, &eaten);
                if (!eaten)
                        free(buffer);
                return obj;
@@ -431,8 +436,8 @@ void clear_object_flags(unsigned flags)
 {
        int i;
 
-       for (i=0; i < obj_hash_size; i++) {
-               struct object *obj = obj_hash[i];
+       for (i=0; i < the_repository->parsed_objects->obj_hash_size; i++) {
+               struct object *obj = the_repository->parsed_objects->obj_hash[i];
                if (obj)
                        obj->flags &= ~flags;
        }
@@ -442,13 +447,32 @@ void clear_commit_marks_all(unsigned int flags)
 {
        int i;
 
-       for (i = 0; i < obj_hash_size; i++) {
-               struct object *obj = obj_hash[i];
+       for (i = 0; i < the_repository->parsed_objects->obj_hash_size; i++) {
+               struct object *obj = the_repository->parsed_objects->obj_hash[i];
                if (obj && obj->type == OBJ_COMMIT)
                        obj->flags &= ~flags;
        }
 }
 
+struct parsed_object_pool *parsed_object_pool_new(void)
+{
+       struct parsed_object_pool *o = xmalloc(sizeof(*o));
+       memset(o, 0, sizeof(*o));
+
+       o->blob_state = allocate_alloc_state();
+       o->tree_state = allocate_alloc_state();
+       o->commit_state = allocate_alloc_state();
+       o->tag_state = allocate_alloc_state();
+       o->object_state = allocate_alloc_state();
+
+       o->is_shallow = -1;
+       o->shallow_stat = xcalloc(1, sizeof(*o->shallow_stat));
+
+       o->buffer_slab = allocate_commit_buffer_slab();
+
+       return o;
+}
+
 struct raw_object_store *raw_object_store_new(void)
 {
        struct raw_object_store *o = xmalloc(sizeof(*o));
@@ -484,6 +508,10 @@ void raw_object_store_clear(struct raw_object_store *o)
        oidmap_free(o->replace_map, 1);
        FREE_AND_NULL(o->replace_map);
 
+       free_commit_graph(o->commit_graph);
+       o->commit_graph = NULL;
+       o->commit_graph_attempted = 0;
+
        free_alt_odbs(o);
        o->alt_odb_tail = NULL;
 
@@ -491,3 +519,46 @@ void raw_object_store_clear(struct raw_object_store *o)
        close_all_packs(o);
        o->packed_git = NULL;
 }
+
+void parsed_object_pool_clear(struct parsed_object_pool *o)
+{
+       /*
+        * As objects are allocated in slabs (see alloc.c), we do
+        * not need to free each object, but each slab instead.
+        *
+        * Before doing so, we need to free any additional memory
+        * the objects may hold.
+        */
+       unsigned i;
+
+       for (i = 0; i < o->obj_hash_size; i++) {
+               struct object *obj = o->obj_hash[i];
+
+               if (!obj)
+                       continue;
+
+               if (obj->type == OBJ_TREE)
+                       free_tree_buffer((struct tree*)obj);
+               else if (obj->type == OBJ_COMMIT)
+                       release_commit_memory((struct commit*)obj);
+               else if (obj->type == OBJ_TAG)
+                       release_tag_memory((struct tag*)obj);
+       }
+
+       FREE_AND_NULL(o->obj_hash);
+       o->obj_hash_size = 0;
+
+       free_commit_buffer_slab(o->buffer_slab);
+       o->buffer_slab = NULL;
+
+       clear_alloc_state(o->blob_state);
+       clear_alloc_state(o->tree_state);
+       clear_alloc_state(o->commit_state);
+       clear_alloc_state(o->tag_state);
+       clear_alloc_state(o->object_state);
+       FREE_AND_NULL(o->blob_state);
+       FREE_AND_NULL(o->tree_state);
+       FREE_AND_NULL(o->commit_state);
+       FREE_AND_NULL(o->tag_state);
+       FREE_AND_NULL(o->object_state);
+}