mutex.c

来自「linux下的多线程调试工具」· C语言 代码 · 共 50 行

#define _XOPEN_SOURCE 600

#include <pthread.h>
#include <stdio.h>
#include <time.h>
#include "alias.h"

struct timespec wait = {0, 10000000};
struct timespec longwait = {0, 30000000};
struct timespec rem;
#define WAIT nanosleep (&wait, &rem)
#define LONGWAIT nanosleep (&longwait, &rem)

pthread_mutex_t mutex;
FILE *fd;

void *func1 () {
    new_thread_alias (fd, "func1");
    pthread_mutex_lock (&mutex);
    LONGWAIT;
    pthread_mutex_unlock (&mutex);
}

void *func2 () {
    new_thread_alias (fd, "func2");
    WAIT;
    pthread_mutex_lock (&mutex);
    pthread_mutex_unlock (&mutex);
}

int main () {
    pthread_t thread1, thread2;
    pthread_mutexattr_t attr;

    fd = alias_init ("alias");
    new_thread_alias (fd, "main");
    new_object_alias (fd, &mutex, "mutex");

    pthread_mutexattr_init (&attr);
    pthread_mutex_init (&mutex, &attr);
    pthread_create (&thread1, NULL, func1, NULL);
    pthread_create (&thread2, NULL, func2, NULL);
    pthread_join (thread1, NULL);
    pthread_join (thread2, NULL);
    pthread_mutex_destroy (&mutex);

    return 0;
}