diff options
Diffstat (limited to 'tinySIGCOMP/src/tcomp_udvm.statemanagment.c')
| -rwxr-xr-x | tinySIGCOMP/src/tcomp_udvm.statemanagment.c | 166 |
1 files changed, 81 insertions, 85 deletions
diff --git a/tinySIGCOMP/src/tcomp_udvm.statemanagment.c b/tinySIGCOMP/src/tcomp_udvm.statemanagment.c index 2644c54..daeca8c 100755 --- a/tinySIGCOMP/src/tcomp_udvm.statemanagment.c +++ b/tinySIGCOMP/src/tcomp_udvm.statemanagment.c @@ -2,19 +2,19 @@ * Copyright (C) 2010-2011 Mamadou Diop. * * Contact: Mamadou Diop <diopmamadou(at)doubango[dot]org> -* +* * This file is part of Open Source Doubango Framework. * * DOUBANGO 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 3 of the License, or * (at your option) any later version. -* +* * DOUBANGO 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 DOUBANGO. * @@ -32,103 +32,99 @@ int tcomp_udvm_byteCopy_TempStates(tcomp_udvm_t *udvm) { - int ok = 1; - uint8_t i; - uint8_t tocreate_size = tcomp_result_getTempStatesToCreateSize(udvm->lpResult); - uint8_t tofree_size = tcomp_result_getTempStatesToFreeSize(udvm->lpResult); - - - /* - * State Create - */ - for(i = 0; i < tocreate_size && ok; i++) - { - /* - * The UDVM byte copies a string of state_length bytes from the UDVM - * memory beginning at state_address (obeying the rules of Section 8.4). - * This is the state_value. - */ - tcomp_state_t* lpState = udvm->lpResult->statesToCreate[i]; - if(lpState->length){ - tcomp_buffer_allocBuff(lpState->value, lpState->length); - } + int ok = 1; + uint8_t i; + uint8_t tocreate_size = tcomp_result_getTempStatesToCreateSize(udvm->lpResult); + uint8_t tofree_size = tcomp_result_getTempStatesToFreeSize(udvm->lpResult); + + + /* + * State Create + */ + for(i = 0; i < tocreate_size && ok; i++) { + /* + * The UDVM byte copies a string of state_length bytes from the UDVM + * memory beginning at state_address (obeying the rules of Section 8.4). + * This is the state_value. + */ + tcomp_state_t* lpState = udvm->lpResult->statesToCreate[i]; + if(lpState->length) { + tcomp_buffer_allocBuff(lpState->value, lpState->length); + } + + ok &= tcomp_udvm_bytecopy_from(udvm, tcomp_buffer_getBuffer(lpState->value), lpState->address, lpState->length); + } - ok &= tcomp_udvm_bytecopy_from(udvm, tcomp_buffer_getBuffer(lpState->value), lpState->address, lpState->length); - } - - /* - * State Free - */ - for(i = 0; i<tofree_size && ok; i++){ - tcomp_tempstate_to_free_t *lpDesc = udvm->lpResult->statesToFree[i]; - tcomp_buffer_allocBuff(lpDesc->identifier, lpDesc->partial_identifier_length); - ok &= tcomp_udvm_bytecopy_from(udvm, tcomp_buffer_getBuffer(lpDesc->identifier), lpDesc->partial_identifier_start, lpDesc->partial_identifier_length); - } - return ok; + /* + * State Free + */ + for(i = 0; i<tofree_size && ok; i++) { + tcomp_tempstate_to_free_t *lpDesc = udvm->lpResult->statesToFree[i]; + tcomp_buffer_allocBuff(lpDesc->identifier, lpDesc->partial_identifier_length); + ok &= tcomp_udvm_bytecopy_from(udvm, tcomp_buffer_getBuffer(lpDesc->identifier), lpDesc->partial_identifier_start, lpDesc->partial_identifier_length); + } + return ok; } //////////////////////////////////////////////////////////////////////////////////////////////////// /// /// @brief Creates temporary state. /// -/// @param [in,out] udvm If non-null, the udvm. -/// @param state_length Length of the state. -/// @param state_address The state address. -/// @param state_instruction The state instruction. -/// @param minimum_access_length Length of the minimum access. -/// @param state_retention_priority The state retention priority. -/// @param end_msg Message describing the end. +/// @param [in,out] udvm If non-null, the udvm. +/// @param state_length Length of the state. +/// @param state_address The state address. +/// @param state_instruction The state instruction. +/// @param minimum_access_length Length of the minimum access. +/// @param state_retention_priority The state retention priority. +/// @param end_msg Message describing the end. /// /// @return 1 if succeed an zero otherwise. //////////////////////////////////////////////////////////////////////////////////////////////////// -int tcomp_udvm_createTempState(tcomp_udvm_t *udvm, uint32_t state_length, uint32_t state_address, uint32_t state_instruction, - uint32_t minimum_access_length, uint32_t state_retention_priority, int end_msg) +int tcomp_udvm_createTempState(tcomp_udvm_t *udvm, uint32_t state_length, uint32_t state_address, uint32_t state_instruction, + uint32_t minimum_access_length, uint32_t state_retention_priority, int end_msg) { - /* - * If the specified minimum_access_length does not lie between 6 and 20 inclusive, or if - * the state_retention_priority is 65535 then the END-MESSAGE - * instruction fails to make a state creation request of its own - * (however decompression failure does not occur and the state creation - * requests made by the STATE-CREATE instruction are still valid). - */ - int is_ok = ( (6<=minimum_access_length && minimum_access_length<=20) && state_retention_priority!=65535 ); + /* + * If the specified minimum_access_length does not lie between 6 and 20 inclusive, or if + * the state_retention_priority is 65535 then the END-MESSAGE + * instruction fails to make a state creation request of its own + * (however decompression failure does not occur and the state creation + * requests made by the STATE-CREATE instruction are still valid). + */ + int is_ok = ( (6<=minimum_access_length && minimum_access_length<=20) && state_retention_priority!=65535 ); - // if not ok and not END_MESSAGE --> decompression failure MUST occurs - if(!is_ok) - { - if(end_msg) return 1; + // if not ok and not END_MESSAGE --> decompression failure MUST occurs + if(!is_ok) { + if(end_msg) { + return 1; + } - if(state_retention_priority == 65535) - { - tcomp_udvm_createNackInfo2(udvm, NACK_INVALID_STATE_PRIORITY); - } - else - { - tcomp_udvm_createNackInfo2(udvm, NACK_INVALID_STATE_ID_LENGTH); - } - return 0; - } + if(state_retention_priority == 65535) { + tcomp_udvm_createNackInfo2(udvm, NACK_INVALID_STATE_PRIORITY); + } + else { + tcomp_udvm_createNackInfo2(udvm, NACK_INVALID_STATE_ID_LENGTH); + } + return 0; + } - /* - * decompression failure occurs if the END-MESSAGE instruction makes a state creation request and four - * instances of the STATE-CREATE instruction have already been encountered. - */ - if(tcomp_result_getTempStatesToCreateSize(udvm->lpResult) >= MAX_TEMP_SATES) - { - tcomp_udvm_createNackInfo2(udvm, NACK_TOO_MANY_STATE_REQUESTS); - return 0; - } + /* + * decompression failure occurs if the END-MESSAGE instruction makes a state creation request and four + * instances of the STATE-CREATE instruction have already been encountered. + */ + if(tcomp_result_getTempStatesToCreateSize(udvm->lpResult) >= MAX_TEMP_SATES) { + tcomp_udvm_createNackInfo2(udvm, NACK_TOO_MANY_STATE_REQUESTS); + return 0; + } - /* - * Is there a state to create? - */ - if(is_ok) - { - // no byte copy () - tcomp_state_t *lpState = tcomp_state_create(state_length, state_address, state_instruction, minimum_access_length, state_retention_priority); - tcomp_result_addTempStateToCreate(udvm->lpResult, lpState); - } + /* + * Is there a state to create? + */ + if(is_ok) { + // no byte copy () + tcomp_state_t *lpState = tcomp_state_create(state_length, state_address, state_instruction, minimum_access_length, state_retention_priority); + tcomp_result_addTempStateToCreate(udvm->lpResult, lpState); + } - return 1; + return 1; } |
