llvm-project/compiler-rt/test/tsan/cond_version.c

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// RUN: %clang_tsan -O1 %s -o %t -lrt && %run %t 2>&1 | FileCheck %s
// Test that pthread_cond is properly intercepted,
// previously there were issues with versioned symbols.
// CHECK: OK
#include <stdio.h>
#include <stdlib.h>
#include <pthread.h>
#include <time.h>
#include <errno.h>
int main() {
typedef unsigned long long u64;
pthread_mutex_t m;
pthread_cond_t c;
pthread_condattr_t at;
struct timespec ts0, ts1, ts2;
int res;
u64 sleep;
pthread_mutex_init(&m, 0);
pthread_condattr_init(&at);
pthread_condattr_setclock(&at, CLOCK_MONOTONIC);
pthread_cond_init(&c, &at);
clock_gettime(CLOCK_MONOTONIC, &ts0);
ts1 = ts0;
ts1.tv_sec += 2;
pthread_mutex_lock(&m);
do {
res = pthread_cond_timedwait(&c, &m, &ts1);
} while (res == 0);
pthread_mutex_unlock(&m);
clock_gettime(CLOCK_MONOTONIC, &ts2);
sleep = (u64)ts2.tv_sec * 1000000000 + ts2.tv_nsec -
((u64)ts0.tv_sec * 1000000000 + ts0.tv_nsec);
if (res != ETIMEDOUT)
exit(printf("bad return value %d, want %d\n", res, ETIMEDOUT));
if (sleep < 1000000000)
exit(printf("bad sleep duration %lluns, want %dns\n", sleep, 1000000000));
fprintf(stderr, "OK\n");
}