glib 线程池 thread_pool

#include <stdio.h>
#include <glib.h>
#include <string.h>

/** 全局锁*/
GMutex g_lock;

#define MAX_THREAD_NUM 10

/**
* @brief 线程池回调函数，线程执行的主体函数
*/
void show_result(gpointer str, gpointer data)
{
g_mutex_lock(&g_lock);
printf("The result is : %s\n", (char*)str);
g_mutex_unlock(&g_lock);
if(1)
{
g_printf("thread[%lu] is running...\n",pthread_self());
sleep(10);
}
}

int main()
{
char *str = "thread_pool example";
int count = 0;
int g_thread_num = 0;
GThreadPool *thread_pool;

/**

* 初始化互斥锁，NULL表示使用默认的快速互斥锁。

*/
g_mutex_init(&g_lock);

thread_pool = g_thread_pool_new(show_result, NULL, MAX_THREAD_NUM, TRUE, NULL);

if (thread_pool == NULL)
{
printf("g_thread_pool_new failed!\n");
return -1;
}
/**
* 调用20次线程池
* 实际线程池中最多有10个线程同时运行
*/
for (count; count < 20; count++)
{
g_thread_pool_push(thread_pool, (gpointer)str, NULL);
}

g_thread_num =  g_thread_pool_get_max_threads(thread_pool);

printf("Max number in the pthread pool: %d\n", g_thread_num);
g_thread_pool_free(thread_pool, 0, 1);

return;
}