tss_t类型

/*类型tss_t范例*/

#ifdef __STDC_NO_THREADS__
#error "Implementation does not support multi-threads."
#endif

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <threads.h>

#define THREADS 3       //线程数。

tss_t key;

/*定义析构函数。*/
void destructor(void *arg)
{
    free(arg);
}

/*新线程中执行的函数。*/
int func(void *arg)
{
    char *ptr = (char *)arg;
    size_t size = strlen(ptr) + 1;
    tss_set(key, malloc(size));
    strcpy((char *)tss_get(key), ptr);
    printf("%s\n", (char *)tss_get(key));
    
    thrd_exit(0);
}

int main(void)
{
    thrd_t threadId[THREADS];
    char *str[THREADS] = {"Be slow to promise and quick to perform.",       \
                          "Better an empty purse than an empty head.",       \
                          "Birds of a feather flock together."};

    /*创建线程专属存储指针。*/
    if(tss_create(&key, destructor) != thrd_success)
    {
        perror("tss_create");
        exit(EXIT_FAILURE);
    }

    /*创建线程。*/
    for(int i=0; i<THREADS; ++i)
    {
        if(thrd_create(&threadId[i], func, str[i]) != thrd_success)
        {
            perror("thrd_create");
            exit(EXIT_FAILURE);
        }
    }

    /*连接线程。*/
    for(int i=0; i<THREADS; ++i)
        thrd_join(threadId[i], NULL);

    /*释放线程专属存储所用资源。*/
    tss_delete(key);
    
    return 0;
}