Benny Prijono | 9033e31 | 2005-11-21 02:08:39 +0000 | [diff] [blame] | 1 | /* $Id$ */ |
| 2 | /* |
Benny Prijono | 844653c | 2008-12-23 17:27:53 +0000 | [diff] [blame] | 3 | * Copyright (C) 2008-2009 Teluu Inc. (http://www.teluu.com) |
| 4 | * Copyright (C) 2003-2008 Benny Prijono <benny@prijono.org> |
Benny Prijono | 9033e31 | 2005-11-21 02:08:39 +0000 | [diff] [blame] | 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU General Public License as published by |
| 8 | * the Free Software Foundation; either version 2 of the License, or |
| 9 | * (at your option) any later version. |
| 10 | * |
| 11 | * This program is distributed in the hope that it will be useful, |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | * GNU General Public License for more details. |
| 15 | * |
| 16 | * You should have received a copy of the GNU General Public License |
| 17 | * along with this program; if not, write to the Free Software |
| 18 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 19 | */ |
| 20 | #include <pj/pool.h> |
| 21 | #include <pj/except.h> |
| 22 | #include <pj/os.h> |
| 23 | #include <pj/compat/malloc.h> |
| 24 | |
Benny Prijono | 8508aa0 | 2006-03-30 15:56:01 +0000 | [diff] [blame] | 25 | #if !PJ_HAS_POOL_ALT_API |
| 26 | |
Benny Prijono | 9033e31 | 2005-11-21 02:08:39 +0000 | [diff] [blame] | 27 | /* |
| 28 | * This file contains pool default policy definition and implementation. |
| 29 | */ |
Benny Prijono | ba4abc9 | 2007-06-01 07:26:21 +0000 | [diff] [blame] | 30 | #include "pool_signature.h" |
Benny Prijono | 9033e31 | 2005-11-21 02:08:39 +0000 | [diff] [blame] | 31 | |
| 32 | |
| 33 | static void *default_block_alloc(pj_pool_factory *factory, pj_size_t size) |
| 34 | { |
Benny Prijono | c6e165f | 2006-07-09 10:05:46 +0000 | [diff] [blame] | 35 | void *p; |
Benny Prijono | 9033e31 | 2005-11-21 02:08:39 +0000 | [diff] [blame] | 36 | |
Benny Prijono | c6e165f | 2006-07-09 10:05:46 +0000 | [diff] [blame] | 37 | PJ_CHECK_STACK(); |
| 38 | |
| 39 | if (factory->on_block_alloc) { |
| 40 | int rc; |
| 41 | rc = factory->on_block_alloc(factory, size); |
| 42 | if (!rc) |
| 43 | return NULL; |
| 44 | } |
| 45 | |
Benny Prijono | ba4abc9 | 2007-06-01 07:26:21 +0000 | [diff] [blame] | 46 | p = malloc(size+(SIG_SIZE << 1)); |
Benny Prijono | c6e165f | 2006-07-09 10:05:46 +0000 | [diff] [blame] | 47 | |
| 48 | if (p == NULL) { |
| 49 | if (factory->on_block_free) |
| 50 | factory->on_block_free(factory, size); |
Benny Prijono | ba4abc9 | 2007-06-01 07:26:21 +0000 | [diff] [blame] | 51 | } else { |
| 52 | /* Apply signature when PJ_SAFE_POOL is set. It will move |
| 53 | * "p" pointer forward. |
| 54 | */ |
| 55 | APPLY_SIG(p, size); |
Benny Prijono | c6e165f | 2006-07-09 10:05:46 +0000 | [diff] [blame] | 56 | } |
| 57 | |
| 58 | return p; |
Benny Prijono | 9033e31 | 2005-11-21 02:08:39 +0000 | [diff] [blame] | 59 | } |
| 60 | |
Benny Prijono | c6e165f | 2006-07-09 10:05:46 +0000 | [diff] [blame] | 61 | static void default_block_free(pj_pool_factory *factory, void *mem, |
| 62 | pj_size_t size) |
Benny Prijono | 9033e31 | 2005-11-21 02:08:39 +0000 | [diff] [blame] | 63 | { |
| 64 | PJ_CHECK_STACK(); |
Benny Prijono | c6e165f | 2006-07-09 10:05:46 +0000 | [diff] [blame] | 65 | |
| 66 | if (factory->on_block_free) |
| 67 | factory->on_block_free(factory, size); |
Benny Prijono | 9033e31 | 2005-11-21 02:08:39 +0000 | [diff] [blame] | 68 | |
Benny Prijono | ba4abc9 | 2007-06-01 07:26:21 +0000 | [diff] [blame] | 69 | /* Check and remove signature when PJ_SAFE_POOL is set. It will |
| 70 | * move "mem" pointer backward. |
| 71 | */ |
| 72 | REMOVE_SIG(mem, size); |
| 73 | |
| 74 | /* Note that when PJ_SAFE_POOL is set, the actual size of the block |
| 75 | * is size + SIG_SIZE*2. |
| 76 | */ |
| 77 | |
Benny Prijono | 9033e31 | 2005-11-21 02:08:39 +0000 | [diff] [blame] | 78 | free(mem); |
| 79 | } |
| 80 | |
| 81 | static void default_pool_callback(pj_pool_t *pool, pj_size_t size) |
| 82 | { |
| 83 | PJ_CHECK_STACK(); |
| 84 | PJ_UNUSED_ARG(pool); |
| 85 | PJ_UNUSED_ARG(size); |
| 86 | |
| 87 | PJ_THROW(PJ_NO_MEMORY_EXCEPTION); |
| 88 | } |
| 89 | |
Benny Prijono | 1af6beb | 2007-08-16 11:26:10 +0000 | [diff] [blame] | 90 | PJ_DEF_DATA(pj_pool_factory_policy) pj_pool_factory_default_policy = |
Benny Prijono | 9033e31 | 2005-11-21 02:08:39 +0000 | [diff] [blame] | 91 | { |
| 92 | &default_block_alloc, |
| 93 | &default_block_free, |
| 94 | &default_pool_callback, |
| 95 | 0 |
| 96 | }; |
Benny Prijono | 8508aa0 | 2006-03-30 15:56:01 +0000 | [diff] [blame] | 97 | |
Benny Prijono | 8ab968f | 2007-07-20 08:08:30 +0000 | [diff] [blame] | 98 | PJ_DEF(const pj_pool_factory_policy*) pj_pool_factory_get_default_policy(void) |
| 99 | { |
| 100 | return &pj_pool_factory_default_policy; |
| 101 | } |
| 102 | |
| 103 | |
Benny Prijono | 8508aa0 | 2006-03-30 15:56:01 +0000 | [diff] [blame] | 104 | #endif /* PJ_HAS_POOL_ALT_API */ |