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/*
* WengoPhone, a voice over Internet phone
* Copyright (C) 2004-2006 Wengo SAS
*
* This program 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 2 of the License, or
* (at your option) any later version.
*
* This program 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 this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef _WENGO_TIMER_H_
#define _WENGO_TIMER_H_
/*
* @author David Ferlier
*
* Simple & portable library for timers
*
*/
typedef int timer_delay_t;
/*
* @brief Portable timer structure
*
* @param callback A callback function called when the timer expires
* @param impl_data private data for timer implementation
*
*/
struct timer {
void (*callback)(void *userdata);
void *impl_data;
void *userdata;
};
typedef struct timer w_timer_t;
/*
* @brief A timer implementation structure
*
* This structure holds the functions a timer API has to implement.
*
*/
struct timer_impl {
char * timer_impl_name;
w_timer_t * (*timer_create)();
void (*timer_set_delay)(w_timer_t *, timer_delay_t delay);
void (*timer_set_callback)(w_timer_t *, void (*callback)(void *));
void (*timer_set_userdata)(w_timer_t *, void *userdata);
int (*timer_start)(w_timer_t *);
int (*timer_stop)(w_timer_t *);
int (*timer_destroy)(w_timer_t *);
};
/*
* @brief Initialize the timer library
*
* This function registers the different timer implementations available
*
*/
void timer_init();
/*
* @brief Get a timer implementation by its name
*
*/
struct timer_impl *timer_impl_getbyname(char *impl_name);
/*
* @brief Get the first timer implementation available
*
*/
struct timer_impl *timer_impl_getfirst();
#endif
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