242 lines
5.9 KiB
C
Executable File
242 lines
5.9 KiB
C
Executable File
/*
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* Copyright (C) 2010-2011 Mamadou Diop.
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*
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* Contact: Mamadou Diop <diopmamadou(at)doubango[dot]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 tsk_options.c
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* @brief Options.
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*
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* @author Mamadou Diop <diopmamadou(at)doubango[dot]org>
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*
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*/
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#include "tsk_options.h"
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#include "tsk_memory.h"
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#include "tsk_string.h"
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#include "tsk_common.h"
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#include <string.h>
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/**@defgroup tsk_options_group Options.
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*/
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/** Predicate function used to find an option by id.
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*/
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static int pred_find_option_by_id(const tsk_list_item_t *item, const void *id)
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{
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if(item && item->data) {
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tsk_option_t *option = (tsk_option_t*)item->data;
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return (option->id - *((int*)id));
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}
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return -1;
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}
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/**@ingroup tsk_options_group
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*/
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tsk_option_t* tsk_option_create(int id, const char* value)
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{
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return (tsk_option_t*)tsk_object_new(TSK_OPTION_VA_ARGS(id, value));
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}
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/**@ingroup tsk_options_group
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*/
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tsk_option_t* tsk_option_create_null()
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{
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return tsk_option_create(0, tsk_null);
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}
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/**@ingroup tsk_options_group
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* Checks if the supplied list of options contains an option with this @a id.
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* @param self The list of options into which to search.
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* @param id The id of the option to search.
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* @retval @ref tsk_true if the parameter exist and @ref tsk_false otherwise.
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*/
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tsk_bool_t tsk_options_have_option(const tsk_options_L_t *self, int id)
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{
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if(self) {
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if(tsk_list_find_item_by_pred(self, pred_find_option_by_id, &id)) {
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return tsk_true;
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}
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}
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return tsk_false;
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}
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/**@ingroup tsk_options_group
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* Adds an option to the list of options. If the option already exist(same id), then it's value will be updated.
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* @param self The destination list.
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* @param id The id of the option to add.
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* @param value The value of the option to add.
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* @retval Zero if succeed and -1 otherwise.
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*/
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int tsk_options_add_option(tsk_options_L_t **self, int id, const char* value)
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{
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tsk_option_t *option;
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if(!self) {
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return -1;
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}
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if(!*self) {
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*self = tsk_list_create();
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}
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if((option = (tsk_option_t*)tsk_options_get_option_by_id(*self, id))) {
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tsk_strupdate(&option->value, value); /* Already exist ==> update the value. */
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}
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else {
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option = tsk_option_create(id, value);
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tsk_list_push_back_data(*self, (void**)&option);
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}
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return 0;
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}
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int tsk_options_add_option_2(tsk_options_L_t **self, const tsk_option_t* option)
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{
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int ret = -1;
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if(!self || !option || !option) {
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return ret;
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}
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ret = tsk_options_add_option(self, option->id, option->value);
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return ret;
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}
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/**@ingroup tsk_options_group
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* Removes an option from the list of options.
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* @param self The source list.
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* @param id The id of the option to remove.
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* @retval Zero if succeed and -1 otherwise.
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*/
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int tsk_options_remove_option(tsk_options_L_t *self, int id)
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{
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if(self) {
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tsk_list_remove_item_by_pred(self, pred_find_option_by_id, &id);
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return 0;
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}
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return -1;
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}
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/**@ingroup tsk_options_group
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* Gets an option from the list of options by id.
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* @param self The source list.
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* @param id The id of the option to retrieve.
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* @retval @ref tsk_option_t if succeed and NULL otherwise.
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*/
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const tsk_option_t *tsk_options_get_option_by_id(const tsk_options_L_t *self, int id)
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{
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if(self) {
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const tsk_list_item_t *item_const = tsk_list_find_item_by_pred(self, pred_find_option_by_id, &id);
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if(item_const) {
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return (const tsk_option_t*)item_const->data;
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}
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}
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return 0;
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}
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/**@ingroup tsk_options_group
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* Gets the value of a option.
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* @param self The source list.
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* @param id The id of the option to retrieve.
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* @retval The value of the option if succeed and @ref tsk_null otherwise.
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*/
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const char *tsk_options_get_option_value(const tsk_options_L_t *self, int id)
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{
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if(self) {
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const tsk_list_item_t *item_const = tsk_list_find_item_by_pred(self, pred_find_option_by_id, &id);
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if(item_const && item_const->data) {
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return ((const tsk_option_t *)item_const->data)->value;
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}
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}
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return tsk_null;
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}
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/**@ingroup tsk_options_group
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* Gets the value of a option.
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* @param self The source list.
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* @param id The id of the option to retrieve.
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* @retval The value of the option if succeed and -1 otherwise.
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*/
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int tsk_options_get_option_value_as_int(const tsk_options_L_t *self, int id)
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{
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const char *value = tsk_options_get_option_value(self, id);
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return value ? atoi(value) : -1;
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}
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//=================================================================================================
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// option object definition
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//
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static tsk_object_t* tsk_option_ctor(tsk_object_t * self, va_list * app)
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{
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tsk_option_t *option = (tsk_option_t*)self;
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if(option) {
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int id = va_arg(*app, int);
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const char* value = va_arg(*app, const char *);
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option->id = id;
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if(!tsk_strnullORempty(value)) {
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option->value = tsk_strdup(value);
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}
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}
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return self;
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}
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static tsk_object_t* tsk_option_dtor(tsk_object_t * self)
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{
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tsk_option_t *option = (tsk_option_t*)self;
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if(option) {
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TSK_FREE(option->value);
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}
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return self;
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}
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static const tsk_object_def_t tsk_option_def_s = {
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sizeof(tsk_option_t),
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tsk_option_ctor,
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tsk_option_dtor,
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tsk_null,
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};
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const tsk_object_def_t* tsk_option_def_t = &tsk_option_def_s;
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