227 lines
5.2 KiB
Ragel
Executable File
227 lines
5.2 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_T.c
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* @brief SDP "t=" header (Timing).
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*/
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#include "tinysdp/headers/tsdp_header_T.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_T;
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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_start_time{
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TSK_PARSER_SET_INTEGER_EX(hdr_T->start, uint64_t, atoi64);
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}
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action parse_stop_time{
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TSK_PARSER_SET_INTEGER_EX(hdr_T->stop, uint64_t, atoi64);
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}
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action parse_repeat_fields{
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tsdp_header_R_t* header_R;
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if((header_R = tsdp_header_R_parse(tag_start, (p - tag_start)))){
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if(!hdr_T->repeat_fields){
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hdr_T->repeat_fields = tsk_list_create();
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}
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tsk_list_push_back_data(hdr_T->repeat_fields, (void**)&header_R);
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}
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}
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start_time = DIGIT+ >tag %parse_start_time;
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stop_time = DIGIT+ >tag %parse_stop_time;
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repeat_fields = any+ >tag %parse_repeat_fields;
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T = 't' SP* "=" SP*<: start_time :>SP stop_time (CRLF <:repeat_fields)?;
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# Entry point
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main := T :>CRLF?;
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}%%
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tsdp_header_T_t* tsdp_header_T_create(uint64_t start, uint64_t stop)
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{
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return tsk_object_new(TSDP_HEADER_T_VA_ARGS(start, stop));
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}
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tsdp_header_T_t* tsdp_header_T_create_null()
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{
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return tsdp_header_T_create(0, 0);
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}
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int tsdp_header_T_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_T_t *T = (const tsdp_header_T_t *)header;
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const tsk_list_item_t *item;
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//"t=3034423619 3042462419\r\n"
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//"r=7d 1h 0 25h\r\n"
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// IMPORTANT: Do not append the last CRLF (because we only print the header value).
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tsk_buffer_append_2(output, "%llu %llu",
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T->start,
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T->stop
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);
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tsk_list_foreach(item, T->repeat_fields)
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{
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if(TSK_LIST_IS_FIRST(T->repeat_fields, item)){
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tsk_buffer_append(output, "\r\n", 2);
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}
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tsk_buffer_append_2(output, "%c=", tsdp_header_get_nameex(TSDP_HEADER(item->data)));
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TSDP_HEADER(item->data)->tostring(TSDP_HEADER(item->data), output);
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//tsdp_header_tostring(TSDP_HEADER(item->data), output);
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if(!TSK_LIST_IS_LAST(T->repeat_fields, item)){
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tsk_buffer_append(output, "\r\n", 2);
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}
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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_T_clone(const tsdp_header_t* header)
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{
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if(header){
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const tsdp_header_T_t *T = (const tsdp_header_T_t *)header;
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tsdp_header_T_t* clone;
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const tsk_list_item_t *item;
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if((clone = tsdp_header_T_create(T->start, T->stop))){
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if(T->repeat_fields){
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clone->repeat_fields = tsk_list_create();
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}
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tsk_list_foreach(item, T->repeat_fields){
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const tsdp_header_t* curr = item->data;
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tsdp_header_t* hdr_clone = curr->clone(curr);
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tsk_list_push_back_data(clone->repeat_fields, (void**)&hdr_clone);
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}
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}
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return TSDP_HEADER(clone);
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}
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return tsk_null;
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}
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tsdp_header_T_t *tsdp_header_T_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_T_t *hdr_T = tsdp_header_T_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_T_first_final);
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(void)(tsdp_machine_parser_header_T_error);
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(void)(tsdp_machine_parser_header_T_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 \"t=\" header.");
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TSK_OBJECT_SAFE_FREE(hdr_T);
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}
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return hdr_T;
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}
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//========================================================
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// T header object definition
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//
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static tsk_object_t* tsdp_header_T_ctor(tsk_object_t *self, va_list * app)
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{
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tsdp_header_T_t *T = self;
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if(T){
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TSDP_HEADER(T)->type = tsdp_htype_T;
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TSDP_HEADER(T)->tostring = tsdp_header_T_tostring;
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TSDP_HEADER(T)->clone = tsdp_header_T_clone;
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TSDP_HEADER(T)->rank = TSDP_HTYPE_T_RANK;
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}
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else{
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TSK_DEBUG_ERROR("Failed to create new U 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_T_dtor(tsk_object_t *self)
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{
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tsdp_header_T_t *T = self;
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if(T){
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TSK_OBJECT_SAFE_FREE(T->repeat_fields);
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}
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else{
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TSK_DEBUG_ERROR("Null U header.");
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}
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return self;
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}
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static int tsdp_header_T_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_T_def_s =
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{
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sizeof(tsdp_header_T_t),
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tsdp_header_T_ctor,
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tsdp_header_T_dtor,
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tsdp_header_T_cmp
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};
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const tsk_object_def_t *tsdp_header_T_def_t = &tsdp_header_T_def_s;
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