/*
* =============================================================================
*
* Filename: Timer.c
*
* Description: 定时器
*
* Version: v1.0
* Created: 2016-08-08 18:33:01
* Revision: none
*
* Author: xubin
* Company: Taichuan
*
* =============================================================================
*/
/* ---------------------------------------------------------------------------*
* include head files
*----------------------------------------------------------------------------*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <strings.h>
#include <pthread.h>
#include <unistd.h>
#include <signal.h>
#include <time.h>
#include "timer.h"
/* ---------------------------------------------------------------------------*
* extern variables declare
*----------------------------------------------------------------------------*/
/* ---------------------------------------------------------------------------*
* internal functions declare
*----------------------------------------------------------------------------*/
/* ---------------------------------------------------------------------------*
* macro define
*----------------------------------------------------------------------------*/
typedef struct _TimerPriv {
timer_t real_id;
int enable;
unsigned int speed;
unsigned int count;
unsigned int count_old;
void (*func)(void);
}TimerPriv;
/* ---------------------------------------------------------------------------*
* variables define
*----------------------------------------------------------------------------*/
static void timerStart(Timer *This)
{
if (This->priv->enable) {
printf("Timer already start\n");
return;
}
This->priv->count_old = This->priv->count = This->getSystemTick();
This->priv->enable = 1;
}
static void timerStop(Timer *This)
{
if (This->priv->enable == 0) {
printf("Timer stopped\n");
return;
}
This->priv->enable = 0;
}
static void timerDestroy(Timer *This)
{
if (This->priv->real_id)
This->realTimerDelete(This);
if (This->priv)
free(This->priv);
if (This)
free(This);
}
static int timerHandle(Timer *This)
{
if (This->priv->enable == 0) {
return 0;
}
int ret = 0;
if ((This->priv->count - This->priv->count_old) >= This->priv->speed) {
if (This->priv->func) {
This->priv->func();
ret = 1;
}
This->priv->count_old = This->priv->count;
// This->priv->count = 0;
} else {
// This->priv->count++;
This->priv->count = This->getSystemTick();
}
return ret;
}
static unsigned int getSystemTickDefault(void)
{
printf("[%s]\n", __FUNCTION__);
return 0;
}
static void realTimerCreateDefault(Timer *This,double value,void (*function)(int timerid,int arg))
{
printf("[%s]\n", __FUNCTION__);
struct sigevent evp;
struct itimerspec ts;
int ret;
evp.sigev_value.sival_ptr = &This->priv->real_id;
evp.sigev_notify = SIGEV_SIGNAL;
evp.sigev_signo = SIGUSR2;
signal(SIGUSR2, (__sighandler_t)function);
ret = timer_create(CLOCK_REALTIME, &evp, &This->priv->real_id);
if(ret)
perror("timer_create");
ts.it_interval.tv_sec = (int)value;
ts.it_interval.tv_nsec = (value - (int)value)*1000000;
ts.it_value.tv_sec = (int)value;
ts.it_value.tv_nsec = (value - (int)value)*1000000;
ret = timer_settime(This->priv->real_id, 0, &ts, NULL);
if(ret)
perror("timer_settime");
// timer_create (CLOCK_REALTIME, NULL, &This->priv->real_id);
// timer_connect (This->priv->real_id, function,0);
// timer_settime (This->priv->real_id, 0, value, NULL);
}
static void realTimerDeleteDefault(Timer *This)
{
timer_delete(This->priv->real_id);
This->priv->real_id = 0;
}
Timer * timerCreate(int speed,void (*function)(void))
{
Timer *This = (Timer *) calloc(1,sizeof(Timer));
if (!This) {
printf("timer alloc fail\n");
return NULL;
}
This->priv = (TimerPriv *) calloc(1,sizeof(TimerPriv));
if (!This->priv){
printf("timer alloc fail\n");
free(This);
return NULL;
}
This->priv->speed = speed;
This->priv->func = function;
This->start = timerStart;
This->stop = timerStop;
This->destroy = timerDestroy;
This->handle = timerHandle;
This->getSystemTick = getSystemTickDefault;
This->realTimerCreate = realTimerCreateDefault;
This->realTimerDelete = realTimerDeleteDefault;
return This;
}
