race_with_finished_thread.cc [plain text]
#include <pthread.h>
#include <stddef.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
int g_data;
void __attribute__((noinline)) foobar(int *p) {
*p = 42;
}
void *Thread1(void *x) {
foobar(&g_data);
return NULL;
}
void *Thread2(void *x) {
sleep(1);
g_data = 43;
return NULL;
}
int main() {
pthread_t t[2];
pthread_create(&t[0], NULL, Thread1, NULL);
pthread_create(&t[1], NULL, Thread2, NULL);
pthread_join(t[0], NULL);
pthread_join(t[1], NULL);
return 0;
}