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162 lines
4.8 KiB
162 lines
4.8 KiB
/*
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* Copyright (C) 2005 iptelorg GmbH
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*
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* This file is part of ser, a free SIP server.
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*
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* ser is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version
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*
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* For a license to use the ser software under conditions
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* other than those described here, or to purchase support for this
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* software, please contact iptel.org by e-mail at the following addresses:
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* info@iptel.org
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*
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* ser is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifndef __CDS_MEMORY_H
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#define __CDS_MEMORY_H
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/* #define TRACE_CDS_MEMORY */
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#ifdef __cplusplus
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extern "C" {
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#endif
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/** \ingroup cds
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* @{
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*
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* \defgroup cds_memory Memory management
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*
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* Memory operations are common for whole CDS library. Because it must work
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together with SER's memory management and must work without it too, there are
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wrapper macros for memory allocation/deallocation.
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*
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* @{ */
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/* typedef void*(*cds_malloc_func)(unsigned int size);
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typedef void(*cds_free_func)(void *ptr);
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extern cds_malloc_func cds_malloc;
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extern cds_free_func cds_free;
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void cds_set_memory_functions(cds_malloc_func _malloc, cds_free_func _free); */
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/** \def cds_malloc(s)
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* Function/macro for memory allocation. Which function is choosen depends on
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* SER and TRACE_CDS_MEMORY defines.
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*
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* When SER is defined shm_malloc is choosen, standard malloc otherwise. */
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/** \def cds_free(p)
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* Function/macro for memory deallocation. Which function is choosen depends
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* on SER and TRACE_CDS_MEMORY defines.
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*
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* If SER is defined shm_free is choosen, standard free otherwise. */
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/** \def cds_malloc_ptr
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* Function/macro for memory allocation when pointer to function needed. Which
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* function is choosen depends on SER and TRACE_CDS_MEMORY defines.
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*
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* If SER is defined shm_malloc is choosen, standard malloc otherwise. */
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/** \def cds_free_ptr
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* Function/macro for memory deallocation when pointer to function needed.
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* Which function is choosen depends on SER and TRACE_CDS_MEMORY defines.
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*
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* If SER is defined shm_free is choosen, standard free otherwise. */
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/** \def cds_malloc_pkg(s)
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* Function/macro for 'local' memory allocation. Which function is choosen
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* depends on SER and TRACE_CDS_MEMORY defines.
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*
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* When SER is defined pkg_malloc is choosen, standard malloc otherwise. */
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/** \def cds_free_pkg(p)
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* Function/macro for 'local' memory deallocation. Which function is choosen
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* depends on SER and TRACE_CDS_MEMORY defines.
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*
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* When SER is defined pkg_free is choosen, standard free otherwise. */
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#ifdef TRACE_CDS_MEMORY
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/** \internal Debugging variant of alloc function */
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void *debug_malloc(int size, const char *file, int line);
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/** \internal Debugging variant of free function */
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void debug_free(void *block, const char *file, int line);
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/** \internal Another debugging variant of alloc function - used when pointer
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* to function needed. */
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void *debug_malloc_ex(unsigned int size);
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/** \internal Another debugging variant of free function - used when pointer to
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* function needed. */
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void debug_free_ex(void *block);
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/* \internal Helper function for debugging - shows some debugging information about
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* memory allocations (currently only the number of allocated blocks). */
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void cds_memory_trace(char *dst, int dst_len);
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/** \internal Helper function which is useful for memory debugging only - initializes
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* internal variables for memory tracing */
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void cds_memory_trace_init();
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#define cds_malloc(s) debug_malloc(s,__FILE__, __LINE__)
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#define cds_free(p) debug_free(p,__FILE__, __LINE__)
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#define cds_free_ptr debug_free_ex
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#define cds_malloc_ptr debug_malloc_ex
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#define cds_malloc_pkg(s) debug_malloc(s,__FILE__, __LINE__)
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#define cds_free_pkg(p) debug_free(p,__FILE__, __LINE__)
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#else /* !TRACE */
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#ifdef SER
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#include <mem/mem.h>
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#include <mem/shm_mem.h>
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void* shm_malloc_x(unsigned int size);
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void shm_free_x(void *ptr);
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#define cds_malloc(s) shm_malloc(s)
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#define cds_free(p) shm_free(p)
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#define cds_malloc_ptr shm_malloc_x
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#define cds_free_ptr shm_free_x
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#define cds_malloc_pkg(s) pkg_malloc(s)
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#define cds_free_pkg(p) pkg_free(p)
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#else /* !SER */
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#include <stdlib.h>
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#define cds_malloc(s) malloc(s)
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#define cds_free(p) free(p)
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#define cds_malloc_ptr malloc
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#define cds_free_ptr free
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#define cds_malloc_pkg(s) malloc(s)
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#define cds_free_pkg(p) free(p)
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#endif /* !SER */
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#endif /* !TRACE_CDS_MEMORY */
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#ifdef __cplusplus
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}
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#endif
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/** @}
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* @} */
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#endif
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