求助 linux下创建多线程为何不能多次创建？__mutex_xmlparam_out_empty_sem_count_

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求助 linux下创建多线程为何不能多次创建？

来源: 互联网发布时间：2017-04-03

本文导语: void* pthread_http(void *arg)//发送http请求并libxml解析函数 { ...... //略去定义 while(1) { sleep(1); sem_wait(&empty_sem); pthread_mutex_lock(&mutex); ...

void* pthread_http(void *arg)//发送http请求并libxml解析函数
{
     ......  //略去定义
    while(1)
    {
        sleep(1);
        sem_wait(&empty_sem);
        pthread_mutex_lock(&mutex);

        ParseRootFile(http,¶m); //该函数中可以发送http请求
        in = in % num;
        pthread_mutex_unlock(&mutex);
        sem_post(&full_sem);
        pthread_exit(NULL);
    }
}
void* pthread_trans(void *arg) //转码函数
{
      .....//略去定义

    while(1)
    {
        sleep(2);
        sem_wait(&full_sem);
        pthread_mutex_lock(&mutex);
        out = out % num;
        if ((access(sstr, 0)) == -1)
        {                                                               strncat(cmd, xmlparam.srcpath[out], strlen(xmlparam.srcpath[out]));
            strncat(cmd, xmlparam.param[out],strlen(xmlparam.param[out]));
            strncat(cmd, " &", 2);
            system(cmd);
        ++out;

        pthread_mutex_unlock(&mutex);
           sem_post(&empty_sem);
           pthread_exit(NULL);
      }
}
int main()
{
    ....//略去定义

    ini = sem_init(&empty_sem, 0, MAX);
    ini2 = sem_init(&full_sem, 0, 0);
    if(ini && ini2 != 0)
    {
       printf("sem init failed n");
       exit(1);
    }
    ini3 = pthread_mutex_init(&mutex, NULL);
    if(ini3 != 0)
    {
       printf("mutex init failed n");
       exit(1);
    }
   i = 0;
   j = 0;
   while(1)
   {
        count = GetFileCount("/tmp/fftmp/"); //该目录下文件数
        printf("the count is %dn",count);
       if (count