linux开发---16.【C】线程属性

1. detachstate

//设置线程的detachstate
int pthread_attr_setdetachstate(pthread_attr_t *attr, int detachstate);
//获取线程的detachstate
int pthread_attr_getdetachstate(pthread_attr_t *attr, int *detachstate);

detach_state有两种:
PTHREAD_CREATE_DETACHED
PTHREAD_CREATE_JOINABLE
joinable:能够被其他线程收回其资源和杀死；在被回收之前，其资源是不释放的
detached:是不能被其他线程回收或杀死的，其资源在终止时由系统自动释放
2.代码:

cong@msi:/work/test/thread/5attr$ cat attr.c
#include "utils.h"
void* read_thread(void* arg)
{
    printf("read_thread\n");
    return NULL;
}

int main ( int argc, char *argv[] )
{
    pthread_t thread_id;
    pthread_attr_t attr;
    void* thread_result;
    int status;

    pthread_attr_init(&attr);
    pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
    status = pthread_create(&thread_id, &attr, read_thread, NULL);

    //status = pthread_join(thread_id, &thread_result);
    dbmsg("thread1 over");
    return EXIT_SUCCESS;
}

5attr.rar (下载后改名为5attr.tar.gz)