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commit.c: migrate the commit buffer to the parsed object store 

Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Stefan Beller 2018-06-28 18:22:15 -07:00 committed by Junio C Hamano
parent 95bb9d4c32
commit 65ea9d4bec
4 changed files with 36 additions and 6 deletions
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29
commit.c
View File

@ -261,18 +261,32 @@ struct commit_buffer {
unsigned long size;
};
define_commit_slab(buffer_slab, struct commit_buffer);
static struct buffer_slab buffer_slab = COMMIT_SLAB_INIT(1, buffer_slab);
struct buffer_slab *allocate_commit_buffer_slab(void)
{
struct buffer_slab *bs = xmalloc(sizeof(*bs));
init_buffer_slab(bs);
return bs;
}
void free_commit_buffer_slab(struct buffer_slab *bs)
{
clear_buffer_slab(bs);
free(bs);
}
void set_commit_buffer_the_repository(struct commit *commit, void *buffer, unsigned long size)
{
struct commit_buffer *v = buffer_slab_at(&buffer_slab, commit);
struct commit_buffer *v = buffer_slab_at(
the_repository->parsed_objects->buffer_slab, commit);
v->buffer = buffer;
v->size = size;
}
const void *get_cached_commit_buffer_the_repository(const struct commit *commit, unsigned long *sizep)
{
struct commit_buffer *v = buffer_slab_peek(&buffer_slab, commit);
struct commit_buffer *v = buffer_slab_peek(
the_repository->parsed_objects->buffer_slab, commit);
if (!v) {
if (sizep)
*sizep = 0;
@ -304,14 +318,16 @@ const void *get_commit_buffer(const struct commit *commit, unsigned long *sizep)
void unuse_commit_buffer(const struct commit *commit, const void *buffer)
{
struct commit_buffer *v = buffer_slab_peek(&buffer_slab, commit);
struct commit_buffer *v = buffer_slab_peek(
the_repository->parsed_objects->buffer_slab, commit);
if (!(v && v->buffer == buffer))
free((void *)buffer);
}
void free_commit_buffer(struct commit *commit)
{
struct commit_buffer *v = buffer_slab_peek(&buffer_slab, commit);
struct commit_buffer *v = buffer_slab_peek(
the_repository->parsed_objects->buffer_slab, commit);
if (v) {
FREE_AND_NULL(v->buffer);
v->size = 0;
@ -347,7 +363,8 @@ void release_commit_memory(struct commit *c)
const void *detach_commit_buffer(struct commit *commit, unsigned long *sizep)
{
struct commit_buffer *v = buffer_slab_peek(&buffer_slab, commit);
struct commit_buffer *v = buffer_slab_peek(
the_repository->parsed_objects->buffer_slab, commit);
void *ret;
if (!v) {

4
commit.h
View File

@ -89,6 +89,10 @@ static inline int parse_commit(struct commit *item)
}
void parse_commit_or_die(struct commit *item);
struct buffer_slab;
struct buffer_slab *allocate_commit_buffer_slab(void);
void free_commit_buffer_slab(struct buffer_slab *bs);
/*
* Associate an object buffer with the commit. The ownership of the
* memory is handed over to the commit, and must be free()-able.

5
object.c
View File

@ -467,6 +467,8 @@ struct parsed_object_pool *parsed_object_pool_new(void)
o->is_shallow = -1;
o->shallow_stat = xcalloc(1, sizeof(*o->shallow_stat));
o->buffer_slab = allocate_commit_buffer_slab();
return o;
}
@ -541,6 +543,9 @@ void parsed_object_pool_clear(struct parsed_object_pool *o)
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);

4
object.h
View File

@ -1,6 +1,8 @@
#ifndef OBJECT_H
#define OBJECT_H
struct buffer_slab;
struct parsed_object_pool {
struct object **obj_hash;
int nr_objs, obj_hash_size;
@ -22,6 +24,8 @@ struct parsed_object_pool {
char *alternate_shallow_file;
int commit_graft_prepared;
struct buffer_slab *buffer_slab;
};
struct parsed_object_pool *parsed_object_pool_new(void);