174 lines
3.6 KiB
Ragel
Executable File
174 lines
3.6 KiB
Ragel
Executable File
/*
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* Copyright (C) 2010-2015 Mamadou Diop.
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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 tsdp_header_V.c
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* @brief SDP "v=" header (Protocol Version).
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*/
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#include "tinysdp/headers/tsdp_header_V.h"
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#include "tsk_debug.h"
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#include "tsk_memory.h"
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#include "tsk_string.h"
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#include <string.h>
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/***********************************
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* Ragel state machine.
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*/
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%%{
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machine tsdp_machine_parser_header_V;
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# Includes
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include tsdp_machine_utils "./ragel/tsdp_machine_utils.rl";
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action tag{
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tag_start = p;
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}
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action parse_version{
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TSK_PARSER_SET_INT(hdr_V->version);
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}
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V = 'v' SP* "=" SP*<: DIGIT+>tag %parse_version;
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# Entry point
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main := V :>CRLF?;
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}%%
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tsdp_header_V_t* tsdp_header_V_create(int32_t version)
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{
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return tsk_object_new(TSDP_HEADER_V_VA_ARGS(version));
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}
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tsdp_header_V_t* tsdp_header_V_create_null()
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{
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return tsdp_header_V_create(TSDP_HEADER_V_DEFAULT);
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}
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int tsdp_header_V_tostring(const tsdp_header_t* header, tsk_buffer_t* output)
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{
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if(header)
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{
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const tsdp_header_V_t *V = (const tsdp_header_V_t *)header;
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if(V->version >=0){
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tsk_buffer_append_2(output, "%d", V->version);
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}
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return 0;
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}
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return -1;
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}
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tsdp_header_t* tsdp_header_V_clone(const tsdp_header_t* header)
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{
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if(header){
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const tsdp_header_V_t *V = (const tsdp_header_V_t *)header;
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return (tsdp_header_t*)tsdp_header_V_create(V->version);
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}
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return tsk_null;
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}
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tsdp_header_V_t *tsdp_header_V_parse(const char *data, tsk_size_t size)
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{
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int cs = 0;
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const char *p = data;
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const char *pe = p + size;
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const char *eof = pe;
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tsdp_header_V_t *hdr_V = tsdp_header_V_create_null();
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const char *tag_start = tsk_null;
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TSK_RAGEL_DISABLE_WARNINGS_BEGIN()
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%%write data;
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(void)(tsdp_machine_parser_header_V_first_final);
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(void)(tsdp_machine_parser_header_V_error);
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(void)(tsdp_machine_parser_header_V_en_main);
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%%write init;
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%%write exec;
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TSK_RAGEL_DISABLE_WARNINGS_END()
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if( cs < %%{ write first_final; }%% ){
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TSK_DEBUG_ERROR("Failed to parse \"v=\" header.");
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TSK_OBJECT_SAFE_FREE(hdr_V);
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}
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return hdr_V;
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}
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//========================================================
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// V header object definition
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//
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static tsk_object_t* tsdp_header_V_ctor(tsk_object_t *self, va_list * app)
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{
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tsdp_header_V_t *V = self;
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if(V){
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TSDP_HEADER(V)->type = tsdp_htype_V;
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TSDP_HEADER(V)->tostring = tsdp_header_V_tostring;
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TSDP_HEADER(V)->clone = tsdp_header_V_clone;
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TSDP_HEADER(V)->rank = TSDP_HTYPE_V_RANK;
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V->version = va_arg(*app, int32_t);
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}
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else{
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TSK_DEBUG_ERROR("Failed to create new V header.");
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}
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return self;
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}
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static tsk_object_t* tsdp_header_V_dtor(tsk_object_t *self)
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{
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tsdp_header_V_t *V = self;
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if(V){
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}
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else{
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TSK_DEBUG_ERROR("Null V header.");
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}
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return self;
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}
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static int tsdp_header_V_cmp(const tsk_object_t *obj1, const tsk_object_t *obj2)
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{
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if(obj1 && obj2){
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return tsdp_header_rank_cmp(obj1, obj2);
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}
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else{
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return -1;
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}
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}
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static const tsk_object_def_t tsdp_header_V_def_s =
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{
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sizeof(tsdp_header_V_t),
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tsdp_header_V_ctor,
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tsdp_header_V_dtor,
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tsdp_header_V_cmp
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};
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const tsk_object_def_t *tsdp_header_V_def_t = &tsdp_header_V_def_s;
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