356 lines
9.3 KiB
C
356 lines
9.3 KiB
C
/*
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* Copyright (C) 2009 Mamadou Diop.
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*
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* Contact: Mamadou Diop <diopmamadou(at)doubango.org>
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*
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* This file is part of Open Source Doubango Framework.
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*
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* DOUBANGO 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 3 of the License, or
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* (at your option) any later version.
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*
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* DOUBANGO 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 DOUBANGO.
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*
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*/
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/**@file tcomp_manager.c
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* @brief SigComp Manager.
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*
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* @author Mamadou Diop <diopmamadou(at)yahoo.fr>
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*
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* @date Created: Sat Nov 8 16:54:58 2009 mdiop
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*/
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#include "tcomp_manager.h"
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#include "tsk_debug.h"
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#include "tcomp_compressordisp.h"
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#include "tcomp_decompressordisp.h"
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#include "tcomp_statehandler.h"
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#include "tsk_object.h"
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#include "tsk_safeobj.h"
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#define MAX_DMS 131072
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#define MAX_SMS 131072
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#define MAX_CPB 128
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/**@defgroup tcomp_manager_group SigComp manager.
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*/
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/**SigComp manager.
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*/
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typedef struct tcomp_manager_s
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{
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TSK_DECLARE_OBJECT;
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tcomp_compressordisp_t *dispatcher_compressor;
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tcomp_decompressordisp_t *dispatcher_decompressor;
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tcomp_statehandler_t *stateHandler;
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TSK_DECLARE_SAFEOBJ;
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}
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tcomp_manager_t;
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/**@ingroup tcomp_manager_group
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*/
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size_t tcomp_manager_compress(tcomp_manager_handle_t *handle, const void* compartmentId, size_t compartmentIdSize, const void* input_ptr, size_t input_size, void* output_ptr, size_t output_size, tsk_bool_t stream)
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{
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tcomp_manager_t *manager = handle;
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size_t ret_size = output_size;
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if(!manager){
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TSK_DEBUG_ERROR("NULL sigcomp manager.");
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return 0;
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}
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if(tcomp_compressordisp_compress(manager->dispatcher_compressor, tcomp_buffer_createHash(compartmentId, compartmentIdSize),
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input_ptr, input_size, output_ptr, &ret_size, stream))
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{
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return ret_size;
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}
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return 0;
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}
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/**@ingroup tcomp_manager_group
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*/
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size_t tcomp_manager_decompress(tcomp_manager_handle_t *handle, const void* input_ptr, size_t input_size, tcomp_result_t *lpResult)
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{
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tcomp_manager_t *manager = handle;
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if(!manager){
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TSK_DEBUG_ERROR("NULL sigcomp manager.");
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return 0;
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}
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if(!lpResult || !lpResult->output_buffer){
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TSK_DEBUG_ERROR("You MUST initialize the sigcomp result and set a valid output buffer.");
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return 0;
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}
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/* Reset previous values */
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tcomp_result_reset(lpResult);
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if(tcomp_decompressordisp_decompress(manager->dispatcher_decompressor, input_ptr, input_size, lpResult)){
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return *tcomp_buffer_getIndexBytes(lpResult->output_buffer);
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}
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return 0;
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}
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/**@ingroup tcomp_manager_group
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*/
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size_t tcomp_manager_getNextStreamMessage(tcomp_manager_handle_t *handle, tcomp_result_t *lpResult)
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{
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tcomp_manager_t *manager = handle;
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if(!manager){
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TSK_DEBUG_ERROR("NULL sigcomp manager.");
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return 0;
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}
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if(!lpResult || !tcomp_buffer_getSize(lpResult->output_buffer)){
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TSK_DEBUG_ERROR("Invalid result.");
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return 0;
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}
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if(!lpResult->isStreamBased){
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TSK_DEBUG_ERROR("You MUST provide stream buffer.");
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return 0;
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}
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_tcomp_result_reset(lpResult, 0, 0);
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if(tcomp_decompressordisp_getNextMessage(manager->dispatcher_decompressor, lpResult)){
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return *tcomp_buffer_getIndexBytes(lpResult->output_buffer);
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}
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return 0;
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}
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/**@ingroup tcomp_manager_group
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*/
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void tcomp_manager_provideCompartmentId(tcomp_manager_handle_t *handle, tcomp_result_t *lpResult)
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{
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tcomp_manager_t *manager = handle;
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if(!manager){
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TSK_DEBUG_ERROR("NULL sigcomp manager.");
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return;
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}
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tcomp_statehandler_handleResult(manager->stateHandler, &lpResult);
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}
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/**@ingroup tcomp_manager_group
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*/
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void tcomp_manager_closeCompartment(tcomp_manager_handle_t *handle, const void *compartmentId, size_t compartmentIdSize)
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{
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tcomp_manager_t *manager = handle;
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if(!manager){
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TSK_DEBUG_ERROR("NULL sigcomp manager.");
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return;
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}
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tcomp_statehandler_deleteCompartment(manager->stateHandler, tcomp_buffer_createHash(compartmentId, compartmentIdSize));
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}
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/**@ingroup tcomp_manager_group
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* Sets the decompression memory size (RFC 3320 section 3.3).
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* @param handle The SigComp manager.
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* @param dms The new decompression memory size value.
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* @retval Zero if succeed and non-zero error code otherwise.
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*/
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int tcomp_manager_setDecompression_Memory_Size(tcomp_manager_handle_t *handle, uint32_t dms)
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{
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tcomp_manager_t *manager = handle;
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if(!manager){
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TSK_DEBUG_ERROR("NULL sigcomp manager.");
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return -1;
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}
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return tcomp_params_setDmsValue(manager->stateHandler->sigcomp_parameters, (dms > MAX_DMS ? MAX_DMS : dms));
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}
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/**@ingroup tcomp_manager_group
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* Sets the state memory size (RFC 3320 section 3.3).
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* @param handle The SigComp manager.
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* @param sms The new state memory size value.
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* @retval Zero if succeed and non-zero error code otherwise.
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*/
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int tcomp_manager_setState_Memory_Size(tcomp_manager_handle_t *handle, uint32_t sms)
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{
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tcomp_manager_t *manager = handle;
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if(!manager){
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TSK_DEBUG_ERROR("NULL sigcomp manager.");
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return -1;
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}
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return tcomp_params_setSmsValue(manager->stateHandler->sigcomp_parameters, (sms > MAX_SMS ? MAX_SMS : sms));
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}
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/**@ingroup tcomp_manager_group
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* Sets the Cycle Per Bit (RFC 3320 section 3.3).
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* @param handle The SigComp manager.
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* @param cpb The new cycle per bit value.
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* @retval Zero if succeed and non-zero error code otherwise.
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*/
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int tcomp_manager_setCycles_Per_Bit(tcomp_manager_handle_t *handle, uint8_t cpb)
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{
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tcomp_manager_t *manager = handle;
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if(!manager){
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TSK_DEBUG_ERROR("NULL sigcomp manager.");
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return -1;
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}
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return tcomp_params_setCpbValue(manager->stateHandler->sigcomp_parameters, (cpb > MAX_CPB ? MAX_CPB : cpb));
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}
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/**@ingroup tcomp_manager_group
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* Sets the SigComp version (RFC 3320 section 3.3).
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* @param handle The SigComp manager.
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* @param cpb The new cycle per bit value.
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* @retval Zero if succeed and non-zero error code otherwise.
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*/
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int tcomp_manager_setSigComp_Version(tcomp_manager_handle_t *handle, uint8_t version)
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{
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tcomp_manager_t *manager = handle;
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if(!manager){
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TSK_DEBUG_ERROR("NULL sigcomp manager.");
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return -1;
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}
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manager->stateHandler->sigcomp_parameters->SigComp_version = version;
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return 0;
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}
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/**@ingroup tcomp_manager_group
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* Adds a new compressor to the dispatcher.
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* @param handle The SigComp manager holding the dispatcher.
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* @param compressor The compressor to add.
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* @retval Zero if succeed and non-zero error code otherwise.
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*/
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int tcomp_manager_addCompressor(tcomp_manager_handle_t *handle, tcomp_compressor_compress_f compressor)
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{
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tcomp_manager_t *manager = handle;
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if(!manager){
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TSK_DEBUG_ERROR("NULL sigcomp manager.");
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return -1;
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}
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return tcomp_compressordisp_addCompressor(manager->dispatcher_compressor, compressor);
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}
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/**@ingroup tcomp_manager_group
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* Removes the compressor from the dispatcher.
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* @param handle The SigComp manager holding the dispatcher.
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* @param compressor The compressor to add.
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* @retval Zero if succeed and non-zero error code otherwise.
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*/
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int tcomp_manager_removeCompressor(tcomp_manager_handle_t *handle, tcomp_compressor_compress_f compressor)
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{
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tcomp_manager_t *manager = handle;
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if(!manager){
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TSK_DEBUG_ERROR("NULL sigcomp manager.");
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return -1;
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}
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return tcomp_compressordisp_removeCompressor(manager->dispatcher_compressor, compressor);
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}
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/**@ingroup tcomp_manager_group
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* Adds SIP/SDP dictionary (RFC 3485) to the state handler.
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* @param handle The SigComp manager holding the state handler.
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* @retval Zero if succeed and non-zero otherwise.
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*/
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int tcomp_manager_addSipSdpDictionary(tcomp_manager_handle_t *handle)
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{
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tcomp_manager_t *manager = handle;
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if(!manager){
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TSK_DEBUG_ERROR("NULL sigcomp manager.");
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return -1;
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}
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return tcomp_statehandler_addSipSdpDictionary(manager->stateHandler);
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}
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/**@ingroup tcomp_manager_group
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* Adds Presence dictionary (RFC 5112) to the state handler.
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* @param handle The SigComp manager holding the state handler.
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* @retval Zero if succeed and non-zero otherwise.
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*/
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int tcomp_manager_addPresenceDictionary(tcomp_manager_handle_t *handle)
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{
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tcomp_manager_t *manager = handle;
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if(!manager){
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TSK_DEBUG_ERROR("NULL sigcomp manager.");
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return -1;
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}
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return tcomp_statehandler_addPresenceDictionary(manager->stateHandler);
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}
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//========================================================
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// SigComp manager object definition
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//
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static void* tcomp_manager_create(void * self, va_list * app)
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{
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tcomp_manager_t *manager = self;
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if(manager)
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{
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manager->stateHandler = TCOMP_STATEHANDLER_CREATE();
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manager->dispatcher_compressor = TCOMP_COMPRESSORDISP_CREATE(manager->stateHandler);
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manager->dispatcher_decompressor = TCOMP_DECOMPRESSORDISP_CREATE(manager->stateHandler);
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/* Initialize safeobject */
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tsk_safeobj_init(manager);
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}
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else{
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TSK_DEBUG_ERROR("Failed to create new manager.");
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}
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return self;
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}
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static void* tcomp_manager_destroy(void *self)
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{
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tcomp_manager_t *manager = self;
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if(manager)
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{
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/* Deinitialize safeobject */
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tsk_safeobj_deinit(manager);
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TSK_OBJECT_SAFE_FREE(manager->stateHandler);
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TSK_OBJECT_SAFE_FREE(manager->dispatcher_compressor);
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TSK_OBJECT_SAFE_FREE(manager->dispatcher_decompressor);
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}
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else TSK_DEBUG_ERROR("Null manager.");
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return self;
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}
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static const tsk_object_def_t tcomp_manager_def_s =
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{
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sizeof(tcomp_manager_t),
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tcomp_manager_create,
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tcomp_manager_destroy,
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0
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};
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const void *tcomp_manager_def_t = &tcomp_manager_def_s;
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