C中的pthread_self()与示例

先决条件：C语言中的多线程

语法：-pthread_t pthread_self(void); pthread_self()函数返回在其中调用它的线程的ID。

// C program to demonstrate working of pthread_self()
#include 
#include 
#include 
void* calls(void* ptr)
{
    // using pthread_self() get current thread id
    printf("In function \nthread id = %d\n", pthread_self());
    pthread_exit(NULL);
    return NULL;
}
  
int main()
{
    pthread_t thread; // declare thread
    pthread_create(&thread, NULL, calls, NULL);
    printf("In main \nthread id = %d\n", thread); 
    pthread_join(thread, NULL); 
    return 0;
}

输出：

In function
thread id = 1
In main
thread id = 1

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