TEST(LockManager, GrantMultipleFIFOOrder) {
LockManager lockMgr;
const ResourceId resId(RESOURCE_COLLECTION, std::string("TestDB.collection"));
std::unique_ptr<MMAPV1LockerImpl> locker[6];
for (int i = 0; i < 6; i++) {
locker[i].reset(new MMAPV1LockerImpl());
}
TrackingLockGrantNotification notify[6];
LockRequest request[6];
for (int i = 0; i < 6; i++) {
request[i].initNew(locker[i].get(), ¬ify[i]);
lockMgr.lock(resId, &request[i], MODE_X);
ASSERT(request[i].mode == MODE_X);
ASSERT(request[i].recursiveCount == 1);
}
// Release the last held lock and ensure the next one, based on time is granted
for (int i = 0; i < 5; i++) {
lockMgr.unlock(&request[i]);
ASSERT(notify[i + 1].numNotifies == 1);
ASSERT(notify[i + 1].lastResId == resId);
ASSERT(notify[i + 1].lastResult == LOCK_OK);
}
// Release the last one
lockMgr.unlock(&request[5]);
}
TEST(LockManager, GrantRecursiveNonCompatibleConvertDown) {
LockManager lockMgr;
const ResourceId resId(RESOURCE_COLLECTION, std::string("TestDB.collection"));
MMAPV1LockerImpl locker;
LockRequestCombo request(&locker);
ASSERT(LOCK_OK == lockMgr.lock(resId, &request, MODE_X));
ASSERT(request.mode == MODE_X);
ASSERT(request.recursiveCount == 1);
ASSERT(request.numNotifies == 0);
// Acquire again, in *non-compatible*, but less strict mode
ASSERT(LOCK_OK == lockMgr.convert(resId, &request, MODE_S));
ASSERT(request.mode == MODE_X);
ASSERT(request.recursiveCount == 2);
ASSERT(request.numNotifies == 0);
// Release first acquire
lockMgr.unlock(&request);
ASSERT(request.mode == MODE_X);
ASSERT(request.recursiveCount == 1);
// Release second acquire
lockMgr.unlock(&request);
ASSERT(request.recursiveCount == 0);
}
TEST(LockManager, MultipleConflict) {
LockManager lockMgr;
const ResourceId resId(RESOURCE_COLLECTION, std::string("TestDB.collection"));
MMAPV1LockerImpl locker;
TrackingLockGrantNotification notify;
LockRequest request[6];
for (int i = 0; i < 6; i++) {
request[i].initNew(&locker, ¬ify);
if (i == 0) {
ASSERT(LOCK_OK == lockMgr.lock(resId, &request[i], MODE_X));
} else {
ASSERT(LOCK_WAITING == lockMgr.lock(resId, &request[i], MODE_X));
}
ASSERT(request[i].mode == MODE_X);
ASSERT(request[i].recursiveCount == 1);
}
ASSERT(notify.numNotifies == 0);
// Free them one by one and make sure they get granted in the correct order
for (int i = 0; i < 6; i++) {
lockMgr.unlock(&request[i]);
if (i < 5) {
ASSERT(notify.numNotifies == i + 1);
}
}
}
TEST(LockManager, ConflictCancelWaiting) {
LockManager lockMgr;
const ResourceId resId(RESOURCE_COLLECTION, std::string("TestDB.collection"));
MMAPV1LockerImpl locker1;
TrackingLockGrantNotification notify1;
MMAPV1LockerImpl locker2;
TrackingLockGrantNotification notify2;
LockRequest request1;
request1.initNew(&locker1, ¬ify1);
LockRequest request2;
request2.initNew(&locker2, ¬ify2);
// First request granted right away
ASSERT(LOCK_OK == lockMgr.lock(resId, &request1, MODE_S));
ASSERT(notify1.numNotifies == 0);
ASSERT(LOCK_WAITING == lockMgr.lock(resId, &request2, MODE_X));
// Release second request (which is still in the WAITING mode)
lockMgr.unlock(&request2);
ASSERT(notify2.numNotifies == 0);
ASSERT(request1.mode == MODE_S);
ASSERT(request1.recursiveCount == 1);
// Release second acquire
lockMgr.unlock(&request1);
}
TEST(LockManager, GrantRecursiveNonCompatibleConvertDown) {
LockManager lockMgr;
const ResourceId resId(RESOURCE_COLLECTION, std::string("TestDB.collection"));
LockState locker;
TrackingLockGrantNotification notify;
LockRequest request;
request.initNew(&locker, ¬ify);
ASSERT(LOCK_OK == lockMgr.lock(resId, &request, MODE_X));
ASSERT(request.mode == MODE_X);
ASSERT(request.recursiveCount == 1);
ASSERT(notify.numNotifies == 0);
// Acquire again, in *non-compatible*, but less strict mode
ASSERT(LOCK_OK == lockMgr.lock(resId, &request, MODE_S));
ASSERT(request.mode == MODE_X);
ASSERT(request.recursiveCount == 2);
ASSERT(notify.numNotifies == 0);
// Release first acquire
lockMgr.unlock(&request);
ASSERT(request.mode == MODE_X);
ASSERT(request.recursiveCount == 1);
// Release second acquire
lockMgr.unlock(&request);
ASSERT(request.recursiveCount == 0);
}
// Lock conflict matrix tests
static void checkConflict(LockMode existingMode, LockMode newMode, bool hasConflict) {
LockManager lockMgr;
const ResourceId resId(RESOURCE_COLLECTION, std::string("TestDB.collection"));
MMAPV1LockerImpl lockerExisting;
TrackingLockGrantNotification notifyExisting;
LockRequest requestExisting;
requestExisting.initNew(&lockerExisting, ¬ifyExisting);
ASSERT(LOCK_OK == lockMgr.lock(resId, &requestExisting, existingMode));
MMAPV1LockerImpl lockerNew;
TrackingLockGrantNotification notifyNew;
LockRequest requestNew;
requestNew.initNew(&lockerNew, ¬ifyNew);
LockResult result = lockMgr.lock(resId, &requestNew, newMode);
if (hasConflict) {
ASSERT_EQUALS(LOCK_WAITING, result);
} else {
ASSERT_EQUALS(LOCK_OK, result);
}
lockMgr.unlock(&requestNew);
lockMgr.unlock(&requestExisting);
}
void TestOnMappedNetworkDrives::ActualTestImportDocument()
{
DocProviderWorker objWorker;
WSDocNonCom wsDoc;
LockManager lockMgr;
CStdString sMappedDriveLetter = m_NetDriveHelper.GetMapNetworkDriveLetter();
assertMessage(!sMappedDriveLetter.IsEmpty(), _T("Cannot map network drive - used to just skip test"));
CStdString sOrigFile = sMappedDriveLetter + _T("\\Original.doc");
DocumentID docImportID(DocumentID::GenerateIdFromFilePath(sOrigFile));
CStdString csLocalFile = docImportID.CreateLocalFile();
objWorker.PopulateDocumentProperties(docImportID, wsDoc, false);
CStdString sOldDocID = wsDoc.GetDocId();
HRESULT hrImport = objWorker.ImportDocument(wsDoc, false);
assertMessage(SUCCEEDED(hrImport),_T("Failure code returned from ImportDocument()"));
if(sOldDocID.CompareNoCase( CStdString(wsDoc.GetDocId()))==0)
{
assertMessage(false,_T("The in and out DocID's are the same after import"));
}
// check lock=false
CStdString sLockedBy;
if(lockMgr.IsDocIDLocked(wsDoc.GetDocId(), sLockedBy) )
{
assertMessage(false, _T("Imported file is locked when it was requested not to be"));
}
if(docImportID.GetDescription() != wsDoc.GetDescription())
{
assertMessage(false, _T("The document Description does not match the original file used for the import."));
}
assertTest((wsDoc.GetFlags() & DOCUMENT_LOCKED_BY_US)==0);
LFSDMSHelper dmsHelp;
DocumentID docID(wsDoc.GetDocId());
CStdString sLocalName(docID.GetWorkingFile());
int iFileNameStartsAt = sLocalName.ReverseFind('\\');
if ((iFileNameStartsAt != CStdString::npos) && (dmsHelp.DoesFileExist(sLocalName)))
{
sLocalName.resize(iFileNameStartsAt);
assertTest(dmsHelp.DeleteDirectoryAndContents(sLocalName));
}
::DeleteFile(csLocalFile.c_str());
}
void TestCloseDocument::TestUnlocksFileOnClose()
{
DocProviderWorker objWorker;
WSDocNonCom wsDoc;
DocumentID docTarget(DocumentID::GenerateIdFromFilePath(sTestOriginalFileName));
wsDoc.SetDescription(docTarget.GetDescription());
wsDoc.SetLocalFile(docTarget.GetWorkingFile());
assertTest(objWorker.ImportDocument(wsDoc, true) == S_OK);
m_wsImportedDoc = wsDoc;
assertTest(objWorker.CloseDocument(wsDoc,0) == S_OK);
LockManager lckMngr;
CStdString sLockedBy;
assertTest(lckMngr.IsDocIDLocked(wsDoc.GetDocId(),sLockedBy) == false);
}
TEST(LockManager, ConflictingConversion) {
LockManager lockMgr;
const ResourceId resId(RESOURCE_COLLECTION, std::string("TestDB.collection"));
MMAPV1LockerImpl locker1;
MMAPV1LockerImpl locker2;
LockRequestCombo request1(&locker1);
LockRequestCombo request2(&locker2);
// The S requests are granted right away
ASSERT(LOCK_OK == lockMgr.lock(resId, &request1, MODE_S));
ASSERT(request1.numNotifies == 0);
ASSERT(LOCK_OK == lockMgr.lock(resId, &request2, MODE_S));
ASSERT(request2.numNotifies == 0);
// Convert first request to conflicting
ASSERT(LOCK_WAITING == lockMgr.convert(resId, &request1, MODE_X));
ASSERT(request1.numNotifies == 0);
// Free the second lock and make sure the first is granted
lockMgr.unlock(&request2);
ASSERT(request1.mode == MODE_X);
ASSERT(request1.numNotifies == 1);
ASSERT(request2.numNotifies == 0);
// Frees the first reference, mode remains X
lockMgr.unlock(&request1);
ASSERT(request1.mode == MODE_X);
ASSERT(request1.recursiveCount == 1);
lockMgr.unlock(&request1);
}
TEST(LockManager, Upgrade) {
LockManager lockMgr;
const ResourceId resId(RESOURCE_COLLECTION, std::string("TestDB.collection"));
LockState locker1;
TrackingLockGrantNotification notify1;
LockRequest request1;
request1.initNew(&locker1, ¬ify1);
ASSERT(LOCK_OK == lockMgr.lock(resId, &request1, MODE_IS));
LockState locker2;
TrackingLockGrantNotification notify2;
LockRequest request2;
request2.initNew(&locker2, ¬ify2);
ASSERT(LOCK_OK == lockMgr.lock(resId, &request2, MODE_S));
ASSERT(request2.recursiveCount == 1);
// Upgrade the IS lock to X
ASSERT(LOCK_WAITING == lockMgr.lock(resId, &request1, MODE_IX));
ASSERT(!lockMgr.unlock(&request1));
ASSERT(lockMgr.unlock(&request1));
ASSERT(lockMgr.unlock(&request2));
}
TEST(LockManager, ConflictCancelMultipleWaiting) {
LockManager lockMgr;
const ResourceId resId(RESOURCE_COLLECTION, std::string("TestDB.collection"));
MMAPV1LockerImpl locker;
TrackingLockGrantNotification notify;
LockRequest request[6];
for (int i = 0; i < 6; i++) {
request[i].initNew(&locker, ¬ify);
lockMgr.lock(resId, &request[i], MODE_X);
ASSERT(request[i].mode == MODE_X);
ASSERT(request[i].recursiveCount == 1);
}
ASSERT(notify.numNotifies == 0);
// Free the second (waiting)
lockMgr.unlock(&request[1]);
// Free the last
lockMgr.unlock(&request[5]);
// Free one in the middle
lockMgr.unlock(&request[3]);
// Free the remaining so the LockMgr does not compain about leaked locks
lockMgr.unlock(&request[2]);
lockMgr.unlock(&request[4]);
lockMgr.unlock(&request[0]);
}
TEST(LockManager, Grant) {
LockManager lockMgr;
const ResourceId resId(RESOURCE_COLLECTION, std::string("TestDB.collection"));
MMAPV1LockerImpl locker;
TrackingLockGrantNotification notify;
LockRequest request;
request.initNew(&locker, ¬ify);
ASSERT(LOCK_OK == lockMgr.lock(resId, &request, MODE_S));
ASSERT(request.mode == MODE_S);
ASSERT(request.recursiveCount == 1);
ASSERT(notify.numNotifies == 0);
lockMgr.unlock(&request);
ASSERT(request.recursiveCount == 0);
}
TEST(LockManager, Conflict) {
LockManager lockMgr;
const ResourceId resId(RESOURCE_COLLECTION, std::string("TestDB.collection"));
LockState locker1;
TrackingLockGrantNotification notify1;
LockState locker2;
TrackingLockGrantNotification notify2;
LockRequest request1;
request1.initNew(&locker1, ¬ify1);
LockRequest request2;
request2.initNew(&locker2, ¬ify2);
// First request granted right away
ASSERT(LOCK_OK == lockMgr.lock(resId, &request1, MODE_S));
ASSERT(request1.recursiveCount == 1);
ASSERT(notify1.numNotifies == 0);
// Second request must block
ASSERT(LOCK_WAITING == lockMgr.lock(resId, &request2, MODE_X));
ASSERT(request2.mode == MODE_X);
ASSERT(request2.recursiveCount == 1);
ASSERT(notify2.numNotifies == 0);
// Release first request
lockMgr.unlock(&request1);
ASSERT(request1.recursiveCount == 0);
ASSERT(notify1.numNotifies == 0);
ASSERT(request2.mode == MODE_X);
ASSERT(request2.recursiveCount == 1);
ASSERT(notify2.numNotifies == 1);
ASSERT(notify2.lastResult == LOCK_OK);
// Release second acquire
lockMgr.unlock(&request2);
ASSERT(request2.recursiveCount == 0);
ASSERT(notify1.numNotifies == 0);
ASSERT(notify2.numNotifies == 1);
}
TEST(LockManagerTest, TxShutdown) {
LockManager lm;
ClientTransaction t1(&lm, 1);
ClientTransaction t2(&lm, 2);
t1.acquire(kShared, 1, ACQUIRED);
lm.shutdown(3000);
// t1 can still do work while quiescing
t1.release(kShared, 1);
t1.acquire(kShared, 2, ACQUIRED);
#ifdef TRANSACTION_REGISTRATION
// t2 is new and should be refused
t2.acquire(kShared, 3, ABORTED);
#else
t2.quit();
#endif
// after the quiescing period, t1's request should be refused
sleepsecs(3);
t1.acquire(kShared, 4, ABORTED);
}
void TestLockDocument::TestLockAttachment()
{
DocProviderWorker objWorker;
LockManager docLock;
CStdString sDocID(DocumentID::GetDocProviderId() + TEST_DIRECTORY + TEST_DOC + _T(".doc"));
DocumentID docID(sDocID);
CStdString szDummyUser(_T("HighHouseShadow"));
CStdString sLockFileName(docID.GetLockFileName(szDummyUser, false));
WSDocNonCom wsDoc;
objWorker.GetDocument(sDocID,NULL,wsDoc);
HRESULT hrLock = docLock.CreateLock(sDocID, szDummyUser);
if(FAILED(hrLock))
{
CStdString szErr;
szErr.Format(_T("CreateLock returned a Failure Error code - %08x"),hrLock);
assertMessage(false, szErr);
}
if (_taccess(sLockFileName, 0) == -1)
{
assertMessage(false, _T("We didn't create a lock file as HighHouseShadow"));
}
HRESULT hrUnlock = docLock.RemoveLock(sDocID,szDummyUser);
if(FAILED(hrUnlock))
{
CStdString szErr;
szErr.Format(_T("CreateLock returned a Failure Error code - %08x"),hrUnlock);
assertMessage(false,szErr);
}
if (_taccess(sLockFileName, 0) != -1)
{
assertMessage(false, _T("We didn't remove the HighHouseShadow lock"));
}
}
TEST(LockManager, CancelWaitingConversionStrongModes) {
LockManager lockMgr;
const ResourceId resId(RESOURCE_COLLECTION, std::string("TestDB.collection"));
MMAPV1LockerImpl locker1;
MMAPV1LockerImpl locker2;
LockRequestCombo request1(&locker1);
LockRequestCombo request2(&locker2);
// First request granted right away
ASSERT(LOCK_OK == lockMgr.lock(resId, &request1, MODE_S));
ASSERT(request1.numNotifies == 0);
// Second request is granted right away
ASSERT(LOCK_OK == lockMgr.lock(resId, &request2, MODE_S));
ASSERT(request2.numNotifies == 0);
// Convert second request to conflicting
ASSERT(LOCK_WAITING == lockMgr.convert(resId, &request2, MODE_X));
ASSERT(request2.mode == MODE_S);
ASSERT(request2.convertMode == MODE_X);
ASSERT(request2.numNotifies == 0);
// Cancel the conflicting upgrade
lockMgr.unlock(&request2);
ASSERT(request2.mode == MODE_S);
ASSERT(request2.convertMode == MODE_NONE);
ASSERT(request2.numNotifies == 0);
// Free the remaining locks so the LockManager destructor does not complain
lockMgr.unlock(&request1);
lockMgr.unlock(&request2);
}
TEST(LockManager, ConflictingConversionInTheMiddle) {
LockManager lockMgr;
const ResourceId resId(RESOURCE_COLLECTION, std::string("TestDB.collection"));
MMAPV1LockerImpl locker;
TrackingLockGrantNotification notify;
LockRequest request[3];
for (int i = 0; i < 3; i++) {
request[i].initNew(&locker, ¬ify);
lockMgr.lock(resId, &request[i], MODE_S);
}
// Upgrade the one in the middle (not the first one)
ASSERT(LOCK_WAITING == lockMgr.convert(resId, &request[1], MODE_X));
ASSERT(notify.numNotifies == 0);
// Release the two shared modes
lockMgr.unlock(&request[0]);
ASSERT(notify.numNotifies == 0);
lockMgr.unlock(&request[2]);
ASSERT(notify.numNotifies == 1);
ASSERT(request[1].mode == MODE_X);
// Request 1 should be unlocked twice
lockMgr.unlock(&request[1]);
lockMgr.unlock(&request[1]);
}
TEST(LockManager, Downgrade) {
LockManager lockMgr;
const ResourceId resId(RESOURCE_COLLECTION, std::string("TestDB.collection"));
MMAPV1LockerImpl locker1;
LockRequestCombo request1(&locker1);
ASSERT(LOCK_OK == lockMgr.lock(resId, &request1, MODE_X));
MMAPV1LockerImpl locker2;
LockRequestCombo request2(&locker2);
ASSERT(LOCK_WAITING == lockMgr.lock(resId, &request2, MODE_S));
// Downgrade the X request to S
lockMgr.downgrade(&request1, MODE_S);
ASSERT(request2.numNotifies == 1);
ASSERT(request2.lastResult == LOCK_OK);
ASSERT(request2.recursiveCount == 1);
ASSERT(lockMgr.unlock(&request1));
ASSERT(lockMgr.unlock(&request2));
}
void TestCloseDocument::TestFailIfLockedByOther()
{
DocProviderWorker objWorker;
WSDocNonCom wsDoc;
DocumentID docTarget(DocumentID::GenerateIdFromFilePath(sTestOriginalFileName));
wsDoc.SetDescription(docTarget.GetDescription());
wsDoc.SetLocalFile(docTarget.GetWorkingFile());
assertTest(objWorker.ImportDocument(wsDoc, false) == S_OK);
m_wsImportedDoc = wsDoc;
LockManager lckMngr;
assertTest(lckMngr.CreateLock(wsDoc.GetDocId(),_T("poptart")) == S_OK);
assertTest(objWorker.CloseDocument(wsDoc,0) == S_OK);
wsDoc.SetFlags(wsDoc.GetFlags()|DOCUMENT_LOCKED_BY_US);
assertTest(objWorker.CloseDocument(wsDoc,0) == E_DOCUMENT_LOCKED_BY_ANOTHER);
lckMngr.RemoveLock(wsDoc.GetDocId(),_T("poptart"));
}
void TestLockDocument::TestAlreadyLockedByOther()
{
DocProviderWorker objWorker;
CStdString sDocID(DocumentID::GetDocProviderId() + TEST_DIRECTORY + TEST_DOC + _T(".doc"));
DocumentID docID(sDocID);
CStdString sLockFileName(docID.GetLockFileName(_T("apple"), false));
WSDocNonCom wsDoc;
LockManager docLock;
objWorker.GetDocument(sDocID, 0, wsDoc);
docLock.CreateLock(sDocID, _T("apple"));
if (_taccess(sLockFileName, 0) == -1)
{
assertMessage(false, _T("Unable to create lock file"));
}
assertTest(objWorker.LockDocument(sDocID, LOCK_DOCUMENT) == E_DOCUMENT_LOCKED_BY_ANOTHER);
assertMessage(docLock.RemoveLock(docID, _T("apple")) == S_OK, _T("Failed to unlock document at end of test"));
}
TEST(LockManager, Conflict) {
LockManager lockMgr;
const ResourceId resId(RESOURCE_COLLECTION, std::string("TestDB.collection"));
MMAPV1LockerImpl locker1;
MMAPV1LockerImpl locker2;
LockRequestCombo request1(&locker1);
LockRequestCombo request2(&locker2);
// First request granted right away
ASSERT(LOCK_OK == lockMgr.lock(resId, &request1, MODE_S));
ASSERT(request1.recursiveCount == 1);
ASSERT(request1.numNotifies == 0);
// Second request must block
ASSERT(LOCK_WAITING == lockMgr.lock(resId, &request2, MODE_X));
ASSERT(request2.mode == MODE_X);
ASSERT(request2.recursiveCount == 1);
ASSERT(request2.numNotifies == 0);
// Release first request
lockMgr.unlock(&request1);
ASSERT(request1.recursiveCount == 0);
ASSERT(request1.numNotifies == 0);
ASSERT(request2.mode == MODE_X);
ASSERT(request2.recursiveCount == 1);
ASSERT(request2.numNotifies == 1);
ASSERT(request2.lastResult == LOCK_OK);
// Release second acquire
lockMgr.unlock(&request2);
ASSERT(request2.recursiveCount == 0);
ASSERT(request1.numNotifies == 0);
ASSERT(request2.numNotifies == 1);
}
void TestCloseDocument::TestDontDeleteLocal()
{
DocProviderWorker objWorker;
WSDocNonCom wsDoc;
DocumentID docTarget(DocumentID::GenerateIdFromFilePath(sTestOriginalFileName));
wsDoc.SetDescription(docTarget.GetDescription());
wsDoc.SetLocalFile(docTarget.GetWorkingFile());
assertTest(objWorker.ImportDocument(wsDoc, true) == S_OK);
m_wsImportedDoc = wsDoc;
assertTest(objWorker.CloseDocument(wsDoc, DF_UNLOCK_ONLY) == S_OK);
LockManager lckMngr;
assertTest(lckMngr.IsDocIDLockedByUs(wsDoc.GetDocId()) == false);
CStdString sLocalFile = wsDoc.GetLocalFile();
if (_taccess(sLocalFile, 0) == -1)
{
assertMessage(false, _T("CloseDocument deleted local file when it shouldn't have"));
}
::DeleteFile(sLocalFile);
}
void TestLockDocument::TestLockNonExistentAttachment()
{
DocProviderWorker objWorker;
CStdString sDocID(DocumentID::GetDocProviderId() + TEST_DIRECTORY + TEST_DOC _T(".doc") + _T("?attach.xdf"));
CStdString sLockFileName(TEST_DIRECTORY + TEST_DOC _T(".doc") _T("." TEST_DMS_EXT _T("\\Version 1\\attach.xdf_Bones.lock")));
CStdString sFile(_T("c:\\Not\\here.doc"));
::DeleteFile(sFile.c_str());
::DeleteFile(sLockFileName.c_str());
WSDocNonCom wsDoc;
LockManager docLock;
const CStdString sUsername(_T("Bones"));
HRESULT hrLock = docLock.CreateLock(sDocID, sUsername);
if(SUCCEEDED(hrLock))
assertMessage(false,_T("Reported Succeeded in creating lock on non existent file"));
if (_taccess(sLockFileName, 0) != -1 )
{
assertMessage(false, _T("Lock file exists for a non existent document"));
}
}
TEST(LockManager, Fairness) {
LockManager lockMgr;
const ResourceId resId(RESOURCE_GLOBAL, 0);
// Start with some 'regular' intent locks
MMAPV1LockerImpl lockerIS;
LockRequestCombo requestIS(&lockerIS);
ASSERT(LOCK_OK == lockMgr.lock(resId, &requestIS, MODE_IS));
MMAPV1LockerImpl lockerIX;
LockRequestCombo requestIX(&lockerIX);
ASSERT(LOCK_OK == lockMgr.lock(resId, &requestIX, MODE_IX));
// Now a conflicting lock comes
MMAPV1LockerImpl lockerX;
LockRequestCombo requestX(&lockerX);
ASSERT(LOCK_WAITING == lockMgr.lock(resId, &requestX, MODE_X));
// Now, whoever comes next should be blocked
MMAPV1LockerImpl lockerIX1;
LockRequestCombo requestIX1(&lockerIX1);
ASSERT(LOCK_WAITING == lockMgr.lock(resId, &requestIX1, MODE_IX));
// Freeing the first two locks should grant the X lock
ASSERT(lockMgr.unlock(&requestIS));
ASSERT(lockMgr.unlock(&requestIX));
ASSERT_EQ(LOCK_OK, requestX.lastResult);
ASSERT_EQ(1, requestX.numNotifies);
ASSERT_EQ(LOCK_INVALID, requestIX1.lastResult);
ASSERT_EQ(0, requestIX1.numNotifies);
ASSERT(lockMgr.unlock(&requestX));
ASSERT_EQ(LOCK_OK, requestIX1.lastResult);
ASSERT_EQ(1, requestIX1.numNotifies);
// Unlock all locks so we don't assert for leaked locks
ASSERT(lockMgr.unlock(&requestIX1));
}
TEST(LockManager, ConvertUpgrade) {
LockManager lockMgr;
const ResourceId resId(RESOURCE_COLLECTION, std::string("TestDB.collection"));
MMAPV1LockerImpl locker1;
LockRequestCombo request1(&locker1);
ASSERT(LOCK_OK == lockMgr.lock(resId, &request1, MODE_S));
MMAPV1LockerImpl locker2;
LockRequestCombo request2(&locker2);
ASSERT(LOCK_OK == lockMgr.lock(resId, &request2, MODE_S));
// Upgrade the S lock to X
ASSERT(LOCK_WAITING == lockMgr.convert(resId, &request1, MODE_X));
ASSERT(!lockMgr.unlock(&request1));
ASSERT(lockMgr.unlock(&request1));
ASSERT(lockMgr.unlock(&request2));
}
TEST(LockManager, CompatibleFirstGrantAlreadyQueued) {
LockManager lockMgr;
const ResourceId resId(RESOURCE_GLOBAL, 0);
// This tests the following behavior:
// Lock held in X, queue: S IX IS, where S is compatibleFirst.
// Once X unlocks both the S and IS requests should proceed.
MMAPV1LockerImpl locker1;
LockRequestCombo request1(&locker1);
MMAPV1LockerImpl locker2;
LockRequestCombo request2(&locker2);
request2.compatibleFirst = true;
MMAPV1LockerImpl locker3;
LockRequestCombo request3(&locker3);
MMAPV1LockerImpl locker4;
LockRequestCombo request4(&locker4);
// Hold the lock in X and establish the S IX IS queue.
ASSERT(LOCK_OK == lockMgr.lock(resId, &request1, MODE_X));
ASSERT(LOCK_WAITING == lockMgr.lock(resId, &request2, MODE_S));
ASSERT(LOCK_WAITING == lockMgr.lock(resId, &request3, MODE_IX));
ASSERT(LOCK_WAITING == lockMgr.lock(resId, &request4, MODE_IS));
// Now unlock, so all readers should be able to proceed, while the IX remains queued.
ASSERT(lockMgr.unlock(&request1));
ASSERT(request2.lastResult == LOCK_OK);
ASSERT(request3.lastResult == LOCK_INVALID);
ASSERT(request4.lastResult == LOCK_OK);
// Now unlock the S lock, and the IX succeeds as well.
ASSERT(lockMgr.unlock(&request2));
ASSERT(request3.lastResult == LOCK_OK);
// Unlock remaining
ASSERT(lockMgr.unlock(&request4));
ASSERT(lockMgr.unlock(&request3));
}
TEST(LockManager, ConflictingConversion) {
LockManager lockMgr;
const ResourceId resId(RESOURCE_COLLECTION, std::string("TestDB.collection"));
LockState locker1;
TrackingLockGrantNotification notify1;
LockState locker2;
TrackingLockGrantNotification notify2;
LockRequest request1;
request1.initNew(&locker1, ¬ify1);
LockRequest request2;
request2.initNew(&locker2, ¬ify2);
// First request granted right away
ASSERT(LOCK_OK == lockMgr.lock(resId, &request1, MODE_S));
ASSERT(notify1.numNotifies == 0);
ASSERT(LOCK_OK == lockMgr.lock(resId, &request2, MODE_S));
ASSERT(notify2.numNotifies == 0);
// Convert first request to conflicting
ASSERT(LOCK_WAITING == lockMgr.lock(resId, &request1, MODE_X));
ASSERT(notify1.numNotifies == 0);
// Free the second lock and make sure the first is granted
lockMgr.unlock(&request2);
ASSERT(request1.mode == MODE_X);
ASSERT(notify1.numNotifies == 1);
ASSERT(notify2.numNotifies == 0);
// Frees the first reference, mode remains X
lockMgr.unlock(&request1);
ASSERT(request1.mode == MODE_X);
ASSERT(request1.recursiveCount == 1);
lockMgr.unlock(&request1);
}
TEST(LockManager, EnqueueAtFront) {
LockManager lockMgr;
const ResourceId resId(RESOURCE_COLLECTION, std::string("TestDB.collection"));
MMAPV1LockerImpl lockerX;
LockRequestCombo requestX(&lockerX);
ASSERT(LOCK_OK == lockMgr.lock(resId, &requestX, MODE_X));
// The subsequent request will block
MMAPV1LockerImpl lockerLow;
LockRequestCombo requestLow(&lockerLow);
ASSERT(LOCK_WAITING == lockMgr.lock(resId, &requestLow, MODE_X));
// This is a "queue jumping request", which will go before locker 2 above
MMAPV1LockerImpl lockerHi;
LockRequestCombo requestHi(&lockerHi);
requestHi.enqueueAtFront = true;
ASSERT(LOCK_WAITING == lockMgr.lock(resId, &requestHi, MODE_X));
// Once the X request is gone, lockerHi should be granted, because it's queue jumping
ASSERT(lockMgr.unlock(&requestX));
ASSERT(requestHi.lastResId == resId);
ASSERT(requestHi.lastResult == LOCK_OK);
// Finally lockerLow should be granted
ASSERT(lockMgr.unlock(&requestHi));
ASSERT(requestLow.lastResId == resId);
ASSERT(requestLow.lastResult == LOCK_OK);
// This avoids the lock manager asserting on leaked locks
ASSERT(lockMgr.unlock(&requestLow));
}
TEST(LockManager, ConflictCancelWaitingConversion) {
LockManager lockMgr;
const ResourceId resId(RESOURCE_COLLECTION, std::string("TestDB.collection"));
LockState locker1;
TrackingLockGrantNotification notify1;
LockState locker2;
TrackingLockGrantNotification notify2;
LockRequest request1;
request1.initNew(&locker1, ¬ify1);
LockRequest request2;
request2.initNew(&locker2, ¬ify2);
// First request granted right away
ASSERT(LOCK_OK == lockMgr.lock(resId, &request1, MODE_S));
ASSERT(notify1.numNotifies == 0);
// Second request is granted right away
ASSERT(LOCK_OK == lockMgr.lock(resId, &request2, MODE_S));
ASSERT(notify2.numNotifies == 0);
// Convert second request to conflicting
ASSERT(LOCK_WAITING == lockMgr.lock(resId, &request2, MODE_X));
ASSERT(request2.mode == MODE_S);
ASSERT(request2.convertMode == MODE_X);
ASSERT(notify2.numNotifies == 0);
// Cancel the conflicting upgrade
lockMgr.unlock(&request2);
ASSERT(request2.mode == MODE_S);
ASSERT(request2.convertMode == MODE_NONE);
ASSERT(notify2.numNotifies == 0);
// Free the remaining locks so the LockManager destructor does not complain
lockMgr.unlock(&request1);
lockMgr.unlock(&request2);
}
TEST(LockManager, CompatibleFirstCancelWaiting) {
LockManager lockMgr;
const ResourceId resId(RESOURCE_GLOBAL, 0);
MMAPV1LockerImpl lockerSInitial;
LockRequestCombo requestSInitial(&lockerSInitial);
ASSERT(LOCK_OK == lockMgr.lock(resId, &requestSInitial, MODE_S));
MMAPV1LockerImpl lockerX;
LockRequestCombo requestX(&lockerX);
ASSERT(LOCK_WAITING == lockMgr.lock(resId, &requestX, MODE_X));
MMAPV1LockerImpl lockerPending;
LockRequestCombo requestPending(&lockerPending);
requestPending.compatibleFirst = true;
ASSERT(LOCK_WAITING == lockMgr.lock(resId, &requestPending, MODE_S));
// S1 is not granted yet, so the policy should still be FIFO
{
MMAPV1LockerImpl lockerS;
LockRequestCombo requestS(&lockerS);
ASSERT(LOCK_WAITING == lockMgr.lock(resId, &requestS, MODE_S));
ASSERT(lockMgr.unlock(&requestS));
}
// Unlock S1, the policy should still be FIFO
ASSERT(lockMgr.unlock(&requestPending));
{
MMAPV1LockerImpl lockerS;
LockRequestCombo requestS(&lockerS);
ASSERT(LOCK_WAITING == lockMgr.lock(resId, &requestS, MODE_S));
ASSERT(lockMgr.unlock(&requestS));
}
// Unlock remaining locks to keep the leak detection logic happy
ASSERT(lockMgr.unlock(&requestSInitial));
ASSERT(lockMgr.unlock(&requestX));
}
