/**
* Timed Wait
* @param mutex the mutex that is locked
* @param wake_up_time the time to wait up.
* @returns true if we received a signal, false if the timeout expired.
*/
bool ConditionVariable::TimedWait(Mutex *mutex, const TimeStamp &wake_up_time) {
struct timespec ts = {
wake_up_time.Seconds(),
wake_up_time.MicroSeconds() * ONE_THOUSAND
};
int i = pthread_cond_timedwait(&m_condition, &mutex->m_mutex, &ts);
return i == 0;
}
void InitRandom() {
Clock clock;
TimeStamp now;
clock.CurrentTime(&now);
uint64_t seed = (static_cast<uint64_t>(now.MicroSeconds()) << 32) +
static_cast<uint64_t>(getpid());
#ifdef HAVE_RANDOM
generator_.seed(seed);
#elif defined(_WIN32)
srand(seed);
#else
srandom(seed);
#endif
}