本文整理汇总了C++中LockManager::unlock方法的典型用法代码示例。如果您正苦于以下问题:C++ LockManager::unlock方法的具体用法?C++ LockManager::unlock怎么用?C++ LockManager::unlock使用的例子?那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类LockManager
的用法示例。
在下文中一共展示了LockManager::unlock方法的1个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: resId
TEST(LockManager, CompatibleFirstImmediateGrant) {
LockManager lockMgr;
const ResourceId resId(RESOURCE_GLOBAL, 0);
MMAPV1LockerImpl locker1;
LockRequestCombo request1(&locker1);
MMAPV1LockerImpl locker2;
LockRequestCombo request2(&locker2);
request2.compatibleFirst = true;
MMAPV1LockerImpl locker3;
LockRequestCombo request3(&locker3);
// Lock all in IS mode
ASSERT(LOCK_OK == lockMgr.lock(resId, &request1, MODE_IS));
ASSERT(LOCK_OK == lockMgr.lock(resId, &request2, MODE_IS));
ASSERT(LOCK_OK == lockMgr.lock(resId, &request3, MODE_IS));
// Now an exclusive mode comes, which would block
MMAPV1LockerImpl lockerX;
LockRequestCombo requestX(&lockerX);
ASSERT(LOCK_WAITING == lockMgr.lock(resId, &requestX, MODE_X));
// If an S comes, it should be granted, because of request2
{
MMAPV1LockerImpl lockerS;
LockRequestCombo requestS(&lockerS);
ASSERT(LOCK_OK == lockMgr.lock(resId, &requestS, MODE_S));
ASSERT(lockMgr.unlock(&requestS));
}
// If request1 goes away, the policy should still be compatible-first, because of request2
ASSERT(lockMgr.unlock(&request1));
// If S comes again, it should be granted, because of request2 still there
{
MMAPV1LockerImpl lockerS;
LockRequestCombo requestS(&lockerS);
ASSERT(LOCK_OK == lockMgr.lock(resId, &requestS, MODE_S));
ASSERT(lockMgr.unlock(&requestS));
}
// With request2 gone the policy should go back to FIFO, even though request3 is active
ASSERT(lockMgr.unlock(&request2));
{
MMAPV1LockerImpl lockerS;
LockRequestCombo requestS(&lockerS);
ASSERT(LOCK_WAITING == lockMgr.lock(resId, &requestS, MODE_S));
ASSERT(lockMgr.unlock(&requestS));
}
// Unlock request3 to keep the lock mgr not assert for leaked locks
ASSERT(lockMgr.unlock(&request3));
ASSERT(lockMgr.unlock(&requestX));
}