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[GSOC Patch v4 1/4] object: drop parsed_object_pool->commit_count

From
Abhishek Kumar <abhishekkumar8222@gmail.com>
Date
Jun 17, 2020, 09:14 UTC
Message-ID
<20200617091411.14650-2-abhishekkumar8222@gmail.com>
In-Reply-To
<20200617091411.14650-1-abhishekkumar8222@gmail.com>

14ba97f8 (alloc: allow arbitrary repositories for alloc functions, 2018-05-15) introduced parsed_object_pool->commit_count to keep count of commits per repository and was used to assign commit->index.

However, commit-slab code requires commit->index values to be unique and a global count would be correct, rather than a per-repo count.

Let's introduce a static counter variable, `parsed_commits_count` to keep track of parsed commits so far.

As commit_count has no use anymore, let's also drop it from the struct.
Signed-off-by: Abhishek Kumar <abhishekkumar8222@gmail.com>
---
 alloc.c                | 16 +++++++++++-----
 alloc.h                |  2 +-
 blob.c                 |  2 +-
 builtin/commit-graph.c |  2 +-
 builtin/fsck.c         |  2 +-
 commit.c               |  4 ++--
 object.c               |  4 ++--
 object.h               |  3 +--
 refs.c                 |  2 +-
 t/helper/test-reach.c  |  2 +-
 tag.c                  |  2 +-
 tree.c                 |  2 +-
 12 files changed, 24 insertions(+), 19 deletions(-)
diff --git a/alloc.c b/alloc.c
index 1c64c4dd16..99fa934b32 100644
--- a/alloc.c
+++ b/alloc.c
@@ -99,15 +99,21 @@ void *alloc_object_node(struct repository *r)
 	return obj;
 }
 
-static unsigned int alloc_commit_index(struct repository *r)
+/*
+ * The returned count is to be used as an index into commit slabs,
+ * that are *NOT* maintained per repository, and that is why a single
+ * global counter is used.
+ */
+static unsigned int alloc_commit_index(void)
 {
-	return r->parsed_objects->commit_count++;
+	static unsigned int parsed_commits_count;
+	return parsed_commits_count++;
 }
 
-void init_commit_node(struct repository *r, struct commit *c)
+void init_commit_node(struct commit *c)
 {
 	c->object.type = OBJ_COMMIT;
-	c->index = alloc_commit_index(r);
+	c->index = alloc_commit_index();
 	c->graph_pos = COMMIT_NOT_FROM_GRAPH;
 	c->generation = GENERATION_NUMBER_INFINITY;
 }
@@ -115,7 +121,7 @@ void init_commit_node(struct repository *r, struct commit *c)
 void *alloc_commit_node(struct repository *r)
 {
 	struct commit *c = alloc_node(r->parsed_objects->commit_state, sizeof(struct commit));
-	init_commit_node(r, c);
+	init_commit_node(c);
 	return c;
 }
 
diff --git a/alloc.h b/alloc.h
index ed1071c11e..371d388b55 100644
--- a/alloc.h
+++ b/alloc.h
@@ -9,7 +9,7 @@ struct repository;
 
 void *alloc_blob_node(struct repository *r);
 void *alloc_tree_node(struct repository *r);
-void init_commit_node(struct repository *r, struct commit *c);
+void init_commit_node(struct commit *c);
 void *alloc_commit_node(struct repository *r);
 void *alloc_tag_node(struct repository *r);
 void *alloc_object_node(struct repository *r);
diff --git a/blob.c b/blob.c
index 36f9abda19..182718aba9 100644
--- a/blob.c
+++ b/blob.c
@@ -10,7 +10,7 @@ struct blob *lookup_blob(struct repository *r, const struct object_id *oid)
 	struct object *obj = lookup_object(r, oid);
 	if (!obj)
 		return create_object(r, oid, alloc_blob_node(r));
-	return object_as_type(r, obj, OBJ_BLOB, 0);
+	return object_as_type(obj, OBJ_BLOB, 0);
 }
 
 int parse_blob_buffer(struct blob *item, void *buffer, unsigned long size)
diff --git a/builtin/commit-graph.c b/builtin/commit-graph.c
index 75455da138..f6797e2a9f 100644
--- a/builtin/commit-graph.c
+++ b/builtin/commit-graph.c
@@ -154,7 +154,7 @@ static int read_one_commit(struct oidset *commits, struct progress *progress,
 			   NULL, 0);
 	if (!result)
 		return error(_("invalid object: %s"), hash);
-	else if (object_as_type(the_repository, result, OBJ_COMMIT, 1))
+	else if (object_as_type(result, OBJ_COMMIT, 1))
 		oidset_insert(commits, &result->oid);
 
 	display_progress(progress, oidset_size(commits));
diff --git a/builtin/fsck.c b/builtin/fsck.c
index f02cbdb439..b2cef01389 100644
--- a/builtin/fsck.c
+++ b/builtin/fsck.c
@@ -241,7 +241,7 @@ static void mark_unreachable_referents(const struct object_id *oid)
 		enum object_type type = oid_object_info(the_repository,
 							&obj->oid, NULL);
 		if (type > 0)
-			object_as_type(the_repository, obj, type, 0);
+			object_as_type(obj, type, 0);
 	}
 
 	options.walk = mark_used;
diff --git a/commit.c b/commit.c
index 87686a7055..b30875e66b 100644
--- a/commit.c
+++ b/commit.c
@@ -37,7 +37,7 @@ struct commit *lookup_commit_reference_gently(struct repository *r,
 
 	if (!obj)
 		return NULL;
-	return object_as_type(r, obj, OBJ_COMMIT, quiet);
+	return object_as_type(obj, OBJ_COMMIT, quiet);
 }
 
 struct commit *lookup_commit_reference(struct repository *r, const struct object_id *oid)
@@ -62,7 +62,7 @@ struct commit *lookup_commit(struct repository *r, const struct object_id *oid)
 	struct object *obj = lookup_object(r, oid);
 	if (!obj)
 		return create_object(r, oid, alloc_commit_node(r));
-	return object_as_type(r, obj, OBJ_COMMIT, 0);
+	return object_as_type(obj, OBJ_COMMIT, 0);
 }
 
 struct commit *lookup_commit_reference_by_name(const char *name)
diff --git a/object.c b/object.c
index 794c86650e..3257518656 100644
--- a/object.c
+++ b/object.c
@@ -157,13 +157,13 @@ void *create_object(struct repository *r, const struct object_id *oid, void *o)
 	return obj;
 }
 
-void *object_as_type(struct repository *r, struct object *obj, enum object_type type, int quiet)
+void *object_as_type(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)
-			init_commit_node(r, (struct commit *) obj);
+			init_commit_node((struct commit *) obj);
 		else
 			obj->type = type;
 		return obj;
diff --git a/object.h b/object.h
index b22328b838..532d7d7f28 100644
--- a/object.h
+++ b/object.h
@@ -15,7 +15,6 @@ struct parsed_object_pool {
 	struct alloc_state *commit_state;
 	struct alloc_state *tag_state;
 	struct alloc_state *object_state;
-	unsigned commit_count;
 
 	/* parent substitutions from .git/info/grafts and .git/shallow */
 	struct commit_graft **grafts;
@@ -121,7 +120,7 @@ struct object *lookup_object(struct repository *r, const struct object_id *oid);
 
 void *create_object(struct repository *r, const struct object_id *oid, void *obj);
 
-void *object_as_type(struct repository *r, struct object *obj, enum object_type type, int quiet);
+void *object_as_type(struct object *obj, enum object_type type, int quiet);
 
 /*
  * Returns the object, having parsed it to find out what it is.
diff --git a/refs.c b/refs.c
index 224ff66c7b..1f551dd279 100644
--- a/refs.c
+++ b/refs.c
@@ -339,7 +339,7 @@ enum peel_status peel_object(const struct object_id *name, struct object_id *oid
 
 	if (o->type == OBJ_NONE) {
 		int type = oid_object_info(the_repository, name, NULL);
-		if (type < 0 || !object_as_type(the_repository, o, type, 0))
+		if (type < 0 || !object_as_type(o, type, 0))
 			return PEEL_INVALID;
 	}
 
diff --git a/t/helper/test-reach.c b/t/helper/test-reach.c
index a0272178b7..ccf837cb33 100644
--- a/t/helper/test-reach.c
+++ b/t/helper/test-reach.c
@@ -67,7 +67,7 @@ int cmd__reach(int ac, const char **av)
 			die("failed to load commit for input %s resulting in oid %s\n",
 			    buf.buf, oid_to_hex(&oid));
 
-		c = object_as_type(r, peeled, OBJ_COMMIT, 0);
+		c = object_as_type(peeled, OBJ_COMMIT, 0);
 
 		if (!c)
 			die("failed to load commit for input %s resulting in oid %s\n",
diff --git a/tag.c b/tag.c
index 71b544467e..1ed2684e45 100644
--- a/tag.c
+++ b/tag.c
@@ -103,7 +103,7 @@ struct tag *lookup_tag(struct repository *r, const struct object_id *oid)
 	struct object *obj = lookup_object(r, oid);
 	if (!obj)
 		return create_object(r, oid, alloc_tag_node(r));
-	return object_as_type(r, obj, OBJ_TAG, 0);
+	return object_as_type(obj, OBJ_TAG, 0);
 }
 
 static timestamp_t parse_tag_date(const char *buf, const char *tail)
diff --git a/tree.c b/tree.c
index 1466bcc6a8..e76517f6b1 100644
--- a/tree.c
+++ b/tree.c
@@ -200,7 +200,7 @@ struct tree *lookup_tree(struct repository *r, const struct object_id *oid)
 	struct object *obj = lookup_object(r, oid);
 	if (!obj)
 		return create_object(r, oid, alloc_tree_node(r));
-	return object_as_type(r, obj, OBJ_TREE, 0);
+	return object_as_type(obj, OBJ_TREE, 0);
 }
 
 int parse_tree_buffer(struct tree *item, void *buffer, unsigned long size)
-- 
2.27.0
Previous: Abhishek KumarNext: Abhishek Kumar
Message 34 of 39 in “Move generation, graph_pos to a slab”
  1. 0/3 Move generation, graph_pos to a slabAbhishek Kumar, Jun 4, 2020
  2. 1/3 commit: introduce helpers for generation slabAbhishek Kumar, Jun 4, 2020
  3. Derrick StoleeJun 4, 2020
  4. Junio C HamanoJun 4, 2020
  5. Jakub NarębskiJun 5, 2020
  6. 3/3 commit: convert commit->graph_pos to a slabAbhishek Kumar, Jun 4, 2020
  7. Jakub NarębskiJun 7, 2020
  8. 2/3 commit: convert commit->generation to a slabAbhishek Kumar, Jun 4, 2020
  9. Derrick StoleeJun 4, 2020
  10. Junio C HamanoJun 4, 2020
  11. Jakub NarębskiJun 6, 2020
  12. Derrick StoleeJun 4, 2020
  13. Junio C HamanoJun 4, 2020
  14. SZEDER GáborJun 7, 2020
  15. Abhishek KumarJun 8, 2020
  16. SZEDER GáborJun 8, 2020
  17. Derrick StoleeJun 8, 2020
  18. SZEDER GáborJun 8, 2020
  19. Jakub NarębskiJun 8, 2020
  20. Jakub NarębskiJun 5, 2020
  21. 0/4 Move generation, graph_pos to a slabAbhishek Kumar, Jun 7, 2020
  22. 1/4 commit-graph: introduce commit_graph_data_slabAbhishek Kumar, Jun 7, 2020
  23. Taylor BlauJun 15, 2020
  24. 2/4 commit: move members graph_pos, generation to a slabAbhishek Kumar, Jun 7, 2020
  25. SZEDER GáborJun 8, 2020
  26. Derrick StoleeJun 8, 2020
  27. 3/4 commit-graph: use generation directly when writing commit-graphAbhishek Kumar, Jun 7, 2020
  28. Jakub NarębskiJun 8, 2020
  29. Taylor BlauJun 15, 2020
  30. 4/4 commit-graph: minimize commit_graph_data_slab accessAbhishek Kumar, Jun 7, 2020
  31. Jakub NarębskiJun 8, 2020
  32. Taylor BlauJun 15, 2020
  33. 0/4 Move generation, graph_pos to a slabAbhishek Kumar, Jun 17, 2020
  34. 1/4 object: drop parsed_object_pool->commit_countAbhishek Kumar, Jun 17, 2020
  35. 2/4 commit-graph: introduce commit_graph_data_slabAbhishek Kumar, Jun 17, 2020
  36. 3/4 commit: move members graph_pos, generation to a slabAbhishek Kumar, Jun 17, 2020
  37. 4/4 commit-graph: minimize commit_graph_data_slab accessAbhishek Kumar, Jun 17, 2020
  38. Derrick StoleeJun 19, 2020
  39. Junio C HamanoJun 19, 2020

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