33 lines · cpp
1#include <pthread.h>2#include <stdlib.h>3#include <stdio.h>4 5const int N = 1000;6void *x[N];7 8void *Thread1(void *unused) {9 for (int i = 0; i < N; i++) {10 fprintf(stderr, "%s %d\n", __func__, i);11 free(x[i]);12 }13 return NULL;14}15 16void *Thread2(void *unused) {17 for (int i = 0; i < N; i++) {18 fprintf(stderr, "%s %d\n", __func__, i);19 free(x[i]);20 }21 return NULL;22}23 24int main() {25 for (int i = 0; i < N; i++)26 x[i] = malloc(128);27 pthread_t t[2];28 pthread_create(&t[0], 0, Thread1, 0);29 pthread_create(&t[1], 0, Thread2, 0);30 pthread_join(t[0], 0);31 pthread_join(t[1], 0);32}33