[GNU/Linux]pthread_create的参数说明

#include <stdio.h>
#include <stdlib.h>

// linux API / pthread
#include <unistd.h>
#include <pthread.h>

struct ThreadParam
{
    int id;
    int max;
};

// 线程入口函数
void* Thread_Main(void* context)
{
    ThreadParam* p = (ThreadParam*) context;
    for(int i=0; i<p->max; i++)
    {
        printf("thread: %d,  count: %d\n", p->id, i);
        sleep(1);
    }
    free(p);
    
    printf("thread : %d  exit . \n");
    return NULL;
}

// 
int main()
{
    // 创建线程（同时启动线程）
    pthread_t h1, h2;
    
    // 创建第1个线程
    ThreadParam* p1 = (ThreadParam*) malloc(sizeof(ThreadParam));
    p1->id = 1;
    p1->max = 10;
    if(pthread_create(&h1, NULL, Thread_Main, p1) < 0)
    {
        printf("failed to create thread!\n");
        return -1;
    }
    
    // 创建第2个线程
    ThreadParam* p2 = (ThreadParam*) malloc(sizeof(ThreadParam));
    p2->id = 2;
    p2->max = 20;
    if(pthread_create(&h2, NULL, Thread_Main, p2) < 0)
    {
        printf("failed to create thread!\n");
        return -1;
    }
    
    
    getchar();
    return 0;
}