public static void AssertLockIsHeldByMe(Guid dbId)
{
lock (AmDatabaseOperationLock.s_lockTable)
{
AmDatabaseOperationLock amDatabaseOperationLock = null;
if (AmDatabaseOperationLock.s_lockTable.TryGetValue(dbId, out amDatabaseOperationLock) && amDatabaseOperationLock != null)
{
AmDatabaseOperationLock.GetThreadId();
}
}
}
public static AmDatabaseOperationLock Lock(Guid dbId, AmDbLockReason reason, TimeSpan?timeout)
{
AmDatabaseOperationLock amDatabaseOperationLock = null;
AmDatabaseOperationLock amDatabaseOperationLock2 = new AmDatabaseOperationLock();
amDatabaseOperationLock2.m_reason = reason;
amDatabaseOperationLock2.m_dbId = dbId;
amDatabaseOperationLock2.m_threadId = AmDatabaseOperationLock.GetThreadId();
lock (AmDatabaseOperationLock.s_lockTable)
{
if (AmDatabaseOperationLock.s_lockTable.TryGetValue(dbId, out amDatabaseOperationLock) && amDatabaseOperationLock != null)
{
AmTrace.Error("AmDatabaseOperationLock: conflict on db {0}. Requesting for {1} but held by {2} for {3}", new object[]
{
dbId,
reason,
amDatabaseOperationLock.ThreadId,
amDatabaseOperationLock.Reason
});
if (timeout == null || timeout.Value.Ticks == 0L || amDatabaseOperationLock.m_waiter != null)
{
throw new AmDbLockConflictException(dbId, reason.ToString(), amDatabaseOperationLock.Reason.ToString());
}
amDatabaseOperationLock2.m_waiterEvent = new ManualResetEvent(false);
amDatabaseOperationLock2.m_mustWaitForLock = true;
amDatabaseOperationLock.m_waiter = amDatabaseOperationLock2;
}
else
{
AmDatabaseOperationLock.s_lockTable[dbId] = amDatabaseOperationLock2;
amDatabaseOperationLock2.m_holdingLock = true;
}
}
if (amDatabaseOperationLock2.m_mustWaitForLock)
{
amDatabaseOperationLock2.WaitForLock(timeout.Value, amDatabaseOperationLock);
}
AmTrace.Debug("AmDatabaseOperationLock({0},{1}) : lock obtained", new object[]
{
dbId,
reason
});
return(amDatabaseOperationLock2);
}
