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Core: added ngx_slab_calloc() and ngx_slab_calloc_locked().

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These functions return zeroed memory, analogous to ngx_pcalloc().
This commit is contained in:
Ruslan Ermilov 2014-06-04 15:09:19 +04:00
parent d1ba20d0c9
commit 05d717b35d
3 changed files with 37 additions and 16 deletions
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29
src/core/ngx_slab.c
View File

@ -398,6 +398,35 @@ done:
}
void *
ngx_slab_calloc(ngx_slab_pool_t *pool, size_t size)
{
void *p;
ngx_shmtx_lock(&pool->mutex);
p = ngx_slab_calloc_locked(pool, size);
ngx_shmtx_unlock(&pool->mutex);
return p;
}
void *
ngx_slab_calloc_locked(ngx_slab_pool_t *pool, size_t size)
{
void *p;
p = ngx_slab_alloc_locked(pool, size);
if (p) {
ngx_memzero(p, size);
}
return p;
}
void
ngx_slab_free(ngx_slab_pool_t *pool, void *p)
{

2
src/core/ngx_slab.h
View File

@ -50,6 +50,8 @@ typedef struct {
void ngx_slab_init(ngx_slab_pool_t *pool);
void *ngx_slab_alloc(ngx_slab_pool_t *pool, size_t size);
void *ngx_slab_alloc_locked(ngx_slab_pool_t *pool, size_t size);
void *ngx_slab_calloc(ngx_slab_pool_t *pool, size_t size);
void *ngx_slab_calloc_locked(ngx_slab_pool_t *pool, size_t size);
void ngx_slab_free(ngx_slab_pool_t *pool, void *p);
void ngx_slab_free_locked(ngx_slab_pool_t *pool, void *p);

22
src/http/ngx_http_file_cache.c
View File

@ -678,8 +678,8 @@ ngx_http_file_cache_exists(ngx_http_file_cache_t *cache, ngx_http_cache_t *c)
goto done;
}
fcn = ngx_slab_alloc_locked(cache->shpool,
sizeof(ngx_http_file_cache_node_t));
fcn = ngx_slab_calloc_locked(cache->shpool,
sizeof(ngx_http_file_cache_node_t));
if (fcn == NULL) {
ngx_shmtx_unlock(&cache->shpool->mutex);
@ -687,8 +687,8 @@ ngx_http_file_cache_exists(ngx_http_file_cache_t *cache, ngx_http_cache_t *c)
ngx_shmtx_lock(&cache->shpool->mutex);
fcn = ngx_slab_alloc_locked(cache->shpool,
sizeof(ngx_http_file_cache_node_t));
fcn = ngx_slab_calloc_locked(cache->shpool,
sizeof(ngx_http_file_cache_node_t));
if (fcn == NULL) {
rc = NGX_ERROR;
goto failed;
@ -704,8 +704,6 @@ ngx_http_file_cache_exists(ngx_http_file_cache_t *cache, ngx_http_cache_t *c)
fcn->uses = 1;
fcn->count = 1;
fcn->updating = 0;
fcn->deleting = 0;
renew:
@ -1618,8 +1616,8 @@ ngx_http_file_cache_add(ngx_http_file_cache_t *cache, ngx_http_cache_t *c)
if (fcn == NULL) {
fcn = ngx_slab_alloc_locked(cache->shpool,
sizeof(ngx_http_file_cache_node_t));
fcn = ngx_slab_calloc_locked(cache->shpool,
sizeof(ngx_http_file_cache_node_t));
if (fcn == NULL) {
ngx_shmtx_unlock(&cache->shpool->mutex);
return NGX_ERROR;
@ -1633,15 +1631,7 @@ ngx_http_file_cache_add(ngx_http_file_cache_t *cache, ngx_http_cache_t *c)
ngx_rbtree_insert(&cache->sh->rbtree, &fcn->node);
fcn->uses = 1;
fcn->count = 0;
fcn->valid_msec = 0;
fcn->error = 0;
fcn->exists = 1;
fcn->updating = 0;
fcn->deleting = 0;
fcn->uniq = 0;
fcn->valid_sec = 0;
fcn->body_start = 0;
fcn->fs_size = c->fs_size;
cache->sh->size += c->fs_size;