inlined_memcpy_race.cc [plain text]
#include <pthread.h>
#include <stddef.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
int x[4], y[4], z[4];
void *MemCpyThread(void *a) {
memcpy((int*)a, z, 16);
return NULL;
}
void *MemMoveThread(void *a) {
memmove((int*)a, z, 16);
return NULL;
}
void *MemSetThread(void *a) {
sleep(1);
memset((int*)a, 0, 16);
return NULL;
}
int main() {
pthread_t t[2];
pthread_create(&t[0], NULL, MemCpyThread, x);
pthread_create(&t[1], NULL, MemSetThread, x);
pthread_join(t[0], NULL);
pthread_join(t[1], NULL);
pthread_create(&t[0], NULL, MemMoveThread, y);
pthread_create(&t[1], NULL, MemSetThread, y);
pthread_join(t[0], NULL);
pthread_join(t[1], NULL);
printf("PASS\n");
return 0;
}