线程如何获取另外主动退出的线程的传出指针

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1 线程退出函数

#include <pthread.h>

void pthread_exit(void *value_ptr);

2 通过线程id等待指定线程退出的线程函数。

#include <pthread.h>

int pthread_join(pthread_t thread, void **value_ptr);

3 获取线程自身的线程id

#include <pthread.h>

pthread_t pthread_self(void);

下面直接附上代码。

线程2等待线程1退出。并获取 pthread_exit传过来的指针

#include <stdio.h>#include <stdlib.h>#include <string.h>#include <sys/statfs.h>#include <pthread.h>//主动关闭其他线程。//获取指定线程的退出状态static void * proc_func_exit(void *);static void * proc_func_join(void *);int main(){   pthread_t th1 = -1;   pthread_t th2 = -1;   int ret = -1;   ret = pthread_create(&th1,NULL,proc_func_exit,NULL);      if(0 != ret)   {return -1;   }   ret = pthread_create(&th2,NULL,proc_func_join,&th1);   if(0 != ret)   {return -1;   }   while(1)   {       sleep(0xfff);   }      return 0;}static void * proc_func_exit(void *pArg){    // 获取自身的线程id    pthread_t pth_id = -1;    char *str = NULL;    str = (char *)malloc(100);     if(NULL == str)    {return (void*)0;    }    pth_id = pthread_self();    printf("\n*** pthread_id = %d****",pth_id);    snprintf(str,100,"I am Exit! pthread_id = %d",pth_id );    //线程退出  pthread_exit    pthread_exit((void *)str);        return (void *)0;}static void * proc_func_join(void *pArg){    char *str = NULL;    pthread_t pth_id = -1;    if(pArg == NULL)    {return (void *)0;    }    pth_id = *((pthread_t *)(pArg));    pthread_join(pth_id ,&str);    if(str != NULL)    {        printf("\nRecv:%s\n",str);        free(str);    }    return (void *)0;}

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