38 lines
798 B
C
38 lines
798 B
C
#include <stdio.h>
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#include <pthread.h>
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#include <unistd.h>
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#include <stdlib.h>
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#include <string.h>
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// pthread_cleanup_push() 和 pthread_cleanup_pop()
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// 线程清退示例
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void *clear_task(void *args);
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void *task1(void *data)
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{
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char *p = malloc(32);
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pthread_cleanup_push(clear_task, (void *)p);
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strcpy(p, "hello, disen!");
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printf("%ld 线程在堆中分配的空间，内容为 %s\n", pthread_self(), p);
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pthread_exit(p);
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pthread_cleanup_pop(0);
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}
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void *clear_task(void *args)
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{
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char *msg = (char *)args;
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printf("清退: %s\n", msg);
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free(msg);
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}
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int main()
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{
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pthread_t tid;
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char *q = NULL;
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pthread_create(&tid, NULL, task1, NULL);
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pthread_join(tid, (void **)&q);
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printf("子线程退出结果: %s\n", q);
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sleep(2);
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return 0;
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} |