diff options
author | David M. Lee <dlee@digium.com> | 2013-01-07 14:24:28 -0600 |
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committer | David M. Lee <dlee@digium.com> | 2013-01-07 14:24:28 -0600 |
commit | f3ab456a17af1c89a6e3be4d20c5944853df1cb0 (patch) | |
tree | d00e1a332cd038a6d906a1ea0ac91e1a4458e617 /pjlib/src/pj/pool_policy_new.cpp |
Import pjproject-2.0.1
Diffstat (limited to 'pjlib/src/pj/pool_policy_new.cpp')
-rw-r--r-- | pjlib/src/pj/pool_policy_new.cpp | 102 |
1 files changed, 102 insertions, 0 deletions
diff --git a/pjlib/src/pj/pool_policy_new.cpp b/pjlib/src/pj/pool_policy_new.cpp new file mode 100644 index 0000000..909eb9f --- /dev/null +++ b/pjlib/src/pj/pool_policy_new.cpp @@ -0,0 +1,102 @@ +/* $Id: pool_policy_new.cpp 3553 2011-05-05 06:14:19Z nanang $ */ +/* + * Copyright (C) 2008-2011 Teluu Inc. (http://www.teluu.com) + * Copyright (C) 2003-2008 Benny Prijono <benny@prijono.org> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program 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 General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ +#include <pj/pool.h> +#include <pj/except.h> +#include <pj/os.h> + +#if !PJ_HAS_POOL_ALT_API + +/* + * This file contains pool default policy definition and implementation. + */ +#include "pool_signature.h" + + +static void *operator_new(pj_pool_factory *factory, pj_size_t size) +{ + void *mem; + + PJ_CHECK_STACK(); + + if (factory->on_block_alloc) { + int rc; + rc = factory->on_block_alloc(factory, size); + if (!rc) + return NULL; + } + + mem = (void*) new char[size+(SIG_SIZE << 1)]; + + /* Exception for new operator may be disabled, so.. */ + if (mem) { + /* Apply signature when PJ_SAFE_POOL is set. It will move + * "mem" pointer forward. + */ + APPLY_SIG(mem, size); + } + + return mem; +} + +static void operator_delete(pj_pool_factory *factory, void *mem, pj_size_t size) +{ + PJ_CHECK_STACK(); + + if (factory->on_block_free) + factory->on_block_free(factory, size); + + /* Check and remove signature when PJ_SAFE_POOL is set. It will + * move "mem" pointer backward. + */ + REMOVE_SIG(mem, size); + + /* Note that when PJ_SAFE_POOL is set, the actual size of the block + * is size + SIG_SIZE*2. + */ + + char *p = (char*)mem; + delete [] p; +} + +static void default_pool_callback(pj_pool_t *pool, pj_size_t size) +{ + PJ_CHECK_STACK(); + PJ_UNUSED_ARG(pool); + PJ_UNUSED_ARG(size); + + PJ_THROW(PJ_NO_MEMORY_EXCEPTION); +} + +PJ_DEF_DATA(pj_pool_factory_policy) pj_pool_factory_default_policy = +{ + &operator_new, + &operator_delete, + &default_pool_callback, + 0 +}; + +PJ_DEF(const pj_pool_factory_policy*) pj_pool_factory_get_default_policy(void) +{ + return &pj_pool_factory_default_policy; +} + + +#endif /* PJ_HAS_POOL_ALT_API */ + |