TEST(LockStats, Wait) {
const ResourceId resId(RESOURCE_COLLECTION, std::string("LockStats.Wait"));
resetGlobalLockStats();
LockerForTests locker(MODE_IX);
locker.lock(resId, MODE_X);
{
// This will block
LockerForTests lockerConflict(MODE_IX);
ASSERT_EQUALS(LOCK_WAITING, lockerConflict.lockBegin(resId, MODE_S));
// Sleep 1 millisecond so the wait time passes
ASSERT_EQUALS(LOCK_TIMEOUT, lockerConflict.lockComplete(resId, MODE_S, 1, false));
}
// Make sure that the waits/blocks are non-zero
SingleThreadedLockStats stats;
reportGlobalLockingStats(&stats);
ASSERT_EQUALS(1, stats.get(resId, MODE_X).numAcquisitions);
ASSERT_EQUALS(0, stats.get(resId, MODE_X).numWaits);
ASSERT_EQUALS(0, stats.get(resId, MODE_X).combinedWaitTimeMicros);
ASSERT_EQUALS(1, stats.get(resId, MODE_S).numAcquisitions);
ASSERT_EQUALS(1, stats.get(resId, MODE_S).numWaits);
ASSERT_GREATER_THAN(stats.get(resId, MODE_S).combinedWaitTimeMicros, 0);
}
TEST(LockStats, NoWait) {
const ResourceId resId(RESOURCE_COLLECTION, std::string("LockStats.NoWait"));
resetGlobalLockStats();
LockerForTests locker(MODE_IX);
locker.lock(resId, MODE_X);
locker.unlock(resId);
// Make sure that the waits/blocks are zero
SingleThreadedLockStats stats;
reportGlobalLockingStats(&stats);
ASSERT_EQUALS(1, stats.get(resId, MODE_X).numAcquisitions);
ASSERT_EQUALS(0, stats.get(resId, MODE_X).numWaits);
ASSERT_EQUALS(0, stats.get(resId, MODE_X).combinedWaitTimeMicros);
}