diff options
Diffstat (limited to 'src/basic/mempool.c')
-rw-r--r-- | src/basic/mempool.c | 104 |
1 files changed, 0 insertions, 104 deletions
diff --git a/src/basic/mempool.c b/src/basic/mempool.c deleted file mode 100644 index f95e2beb0f..0000000000 --- a/src/basic/mempool.c +++ /dev/null @@ -1,104 +0,0 @@ -/*** - This file is part of systemd. - - Copyright 2010-2014 Lennart Poettering - Copyright 2014 Michal Schmidt - - systemd is free software; you can redistribute it and/or modify it - under the terms of the GNU Lesser General Public License as published by - the Free Software Foundation; either version 2.1 of the License, or - (at your option) any later version. - - systemd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public License - along with systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include <stdint.h> -#include <stdlib.h> - -#include "macro.h" -#include "mempool.h" -#include "util.h" - -struct pool { - struct pool *next; - unsigned n_tiles; - unsigned n_used; -}; - -void* mempool_alloc_tile(struct mempool *mp) { - unsigned i; - - /* When a tile is released we add it to the list and simply - * place the next pointer at its offset 0. */ - - assert(mp->tile_size >= sizeof(void*)); - assert(mp->at_least > 0); - - if (mp->freelist) { - void *r; - - r = mp->freelist; - mp->freelist = * (void**) mp->freelist; - return r; - } - - if (_unlikely_(!mp->first_pool) || - _unlikely_(mp->first_pool->n_used >= mp->first_pool->n_tiles)) { - unsigned n; - size_t size; - struct pool *p; - - n = mp->first_pool ? mp->first_pool->n_tiles : 0; - n = MAX(mp->at_least, n * 2); - size = PAGE_ALIGN(ALIGN(sizeof(struct pool)) + n*mp->tile_size); - n = (size - ALIGN(sizeof(struct pool))) / mp->tile_size; - - p = malloc(size); - if (!p) - return NULL; - - p->next = mp->first_pool; - p->n_tiles = n; - p->n_used = 0; - - mp->first_pool = p; - } - - i = mp->first_pool->n_used++; - - return ((uint8_t*) mp->first_pool) + ALIGN(sizeof(struct pool)) + i*mp->tile_size; -} - -void* mempool_alloc0_tile(struct mempool *mp) { - void *p; - - p = mempool_alloc_tile(mp); - if (p) - memzero(p, mp->tile_size); - return p; -} - -void mempool_free_tile(struct mempool *mp, void *p) { - * (void**) p = mp->freelist; - mp->freelist = p; -} - -#ifdef VALGRIND - -void mempool_drop(struct mempool *mp) { - struct pool *p = mp->first_pool; - while (p) { - struct pool *n; - n = p->next; - free(p); - p = n; - } -} - -#endif |