src/basic/mempool.h

   1 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
   2
   3 #pragma once
   4
   5 /***
   6   This file is part of systemd.
   7
   8   Copyright 2011-2014 Lennart Poettering
   9   Copyright 2014 Michal Schmidt
  10
  11   systemd is free software; you can redistribute it and/or modify it
  12   under the terms of the GNU Lesser General Public License as published by
  13   the Free Software Foundation; either version 2.1 of the License, or
  14   (at your option) any later version.
  15
  16   systemd is distributed in the hope that it will be useful, but
  17   WITHOUT ANY WARRANTY; without even the implied warranty of
  18   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  19   Lesser General Public License for more details.
  20
  21   You should have received a copy of the GNU Lesser General Public License
  22   along with systemd; If not, see <http://www.gnu.org/licenses/>.
  23 ***/
  24
  25 #include <stddef.h>
  26
  27 struct pool;
  28
  29 struct mempool {
  30         struct pool *first_pool;
  31         void *freelist;
  32         size_t tile_size;
  33         unsigned at_least;
  34 };
  35
  36 void* mempool_alloc_tile(struct mempool *mp);
  37 void* mempool_alloc0_tile(struct mempool *mp);
  38 void mempool_free_tile(struct mempool *mp, void *p);
  39
  40 #define DEFINE_MEMPOOL(pool_name, tile_type, alloc_at_least) \
  41 struct mempool pool_name = { \
  42         .tile_size = sizeof(tile_type), \
  43         .at_least = alloc_at_least, \
  44 }
  45
  46
  47 #ifdef VALGRIND
  48 void mempool_drop(struct mempool *mp);
  49 #endif