解决线程使用sleep或usleep等函数导致整个进程睡眠的问题：

获取当前时间的秒数

/*

author : kj

time : 2013-12-06 21:36

instruction:

get the num of the current seconds

*/

int get_current_time_second(void)

{

struct tm *tmnow;

struct timeval tv;

gettimeofday(&tv,NULL);

tmnow = localtime(&tv.tv_sec);

return tv.tv_sec;

}

使用下面的函数接口完成替换线程中sleep计时

/*

author : kj

time : 2013-12-06 21:42

function :

done the function of time interval in separate thread

*/

int pthread_count_second(int time_interval)

{

int current_seconds = 0;

int execl_seconds = 0;

int set_time_interval = time_interval;

current_seconds = get_current_time_second();

execl_seconds = current_seconds + set_time_interval;

while(1)

{

current_seconds = get_current_time_second();

if((execl_seconds - current_seconds) == 0)

{

break;

}

}

return 0;

}

call the time interval api example

/*

author : kj

time : 2013-12-01

instrucion:

glitter :

0 - direct set to board

1 - speed slow

2 - speed quickly

*/

int set_led_status(char *led_status,int glitter_type)

{

//int i_temp = 0;//the times need global variable

char set_led_status_buf[4] = {0};

joseph_ipnc_param.joseph_ipnc_network_attr.joseph_ipnc_led_glitter_close = read_user_file("joseph_ipnc_led_glitter_close");

if(glitter_type == 0)

{

strcpy(set_led_status_buf,led_status);

set_status_to_board(set_led_status_buf);

}

if(glitter_type == 1)

{

strcpy(set_led_status_buf,led_status);

while(joseph_ipnc_param.joseph_ipnc_network_attr.joseph_ipnc_led_glitter_close == 1)

{

set_status_to_board(set_led_status_buf);

pthread_count_second(2);

set_status_to_board("00");//close the led

pthread_count_second(2);

joseph_ipnc_param.joseph_ipnc_network_attr.joseph_ipnc_led_glitter_close = read_user_file("joseph_ipnc_led_glitter_close");

//i_temp++;

}

//i_temp = 0;

}

if(glitter_type == 2)

{

strcpy(set_led_status_buf,led_status);

while(joseph_ipnc_param.joseph_ipnc_network_attr.joseph_ipnc_led_glitter_close == 1)

{

set_status_to_board(set_led_status_buf);

pthread_count_second(1);

set_status_to_board("00");//close the led

pthread_count_second(1);

//i_temp++;

joseph_ipnc_param.joseph_ipnc_network_attr.joseph_ipnc_led_glitter_close = read_user_file("joseph_ipnc_led_glitter_close");

}

//i_temp = 0;

}

set_status_to_board(set_led_status_buf);

alter_ipnc_param("joseph_ipnc_led_glitter_close","0");

return 0;

}