internal DocumentsWriterPerThread NextPendingFlush()
{
int numPending;
bool fullFlush;
lock (this)
{
DocumentsWriterPerThread poll;
if (flushQueue.Count > 0 && (poll = flushQueue.Dequeue()) != null)
{
UpdateStallState();
return(poll);
}
fullFlush = this.fullFlush;
numPending = this.numPending;
}
if (numPending > 0 && !fullFlush) // don't check if we are doing a full flush
{
int limit = perThreadPool.NumThreadStatesActive;
for (int i = 0; i < limit && numPending > 0; i++)
{
ThreadState next = perThreadPool.GetThreadState(i);
if (next.flushPending)
{
DocumentsWriterPerThread dwpt = TryCheckoutForFlush(next);
if (dwpt != null)
{
return(dwpt);
}
}
}
}
return(null);
}
internal void Abort(IndexWriter writer)
{
UninterruptableMonitor.Enter(this);
try
{
if (Debugging.AssertsEnabled)
{
Debugging.Assert(!UninterruptableMonitor.IsEntered(writer), "IndexWriter lock should never be hold when aborting");
}
bool success = false;
JCG.HashSet <string> newFilesSet = new JCG.HashSet <string>();
try
{
deleteQueue.Clear();
if (infoStream.IsEnabled("DW"))
{
infoStream.Message("DW", "abort");
}
int limit = perThreadPool.NumThreadStatesActive;
for (int i = 0; i < limit; i++)
{
ThreadState perThread = perThreadPool.GetThreadState(i);
perThread.@Lock();
try
{
AbortThreadState(perThread, newFilesSet);
}
finally
{
perThread.Unlock();
}
}
flushControl.AbortPendingFlushes(newFilesSet);
PutEvent(new DeleteNewFilesEvent(newFilesSet));
flushControl.WaitForFlush();
success = true;
}
finally
{
if (infoStream.IsEnabled("DW"))
{
infoStream.Message("DW", "done abort; abortedFiles=" + string.Format(J2N.Text.StringFormatter.InvariantCulture, "{0}", newFilesSet) + " success=" + success);
}
}
}
finally
{
UninterruptableMonitor.Exit(this);
}
}
internal DocumentsWriterPerThread NextPendingFlush()
{
int numPending;
bool fullFlush;
UninterruptableMonitor.Enter(this);
try
{
DocumentsWriterPerThread poll;
if (flushQueue.Count > 0 && (poll = flushQueue.Dequeue()) != null)
{
UpdateStallState();
return(poll);
}
fullFlush = this.fullFlush;
numPending = this.numPending;
}
finally
{
UninterruptableMonitor.Exit(this);
}
if (numPending > 0 && !fullFlush) // don't check if we are doing a full flush
{
int limit = perThreadPool.NumThreadStatesActive;
for (int i = 0; i < limit && numPending > 0; i++)
{
ThreadState next = perThreadPool.GetThreadState(i);
if (next.flushPending && next.TryLock()) // LUCENENET specific: Since .NET Core 2+ uses fair locking, we need to ensure we have a lock before calling InternalTryCheckoutForFlush. See #
{
try
{
DocumentsWriterPerThread dwpt = TryCheckoutForFlush(next);
if (dwpt != null)
{
return(dwpt);
}
}
finally
{
next.Unlock();
}
}
}
}
return(null);
}
internal void Abort(IndexWriter writer)
{
lock (this)
{
//Debug.Assert(!Thread.HoldsLock(writer), "IndexWriter lock should never be hold when aborting");
bool success = false;
HashSet <string> newFilesSet = new HashSet <string>();
try
{
deleteQueue.Clear();
if (infoStream.IsEnabled("DW"))
{
infoStream.Message("DW", "abort");
}
int limit = perThreadPool.NumThreadStatesActive;
for (int i = 0; i < limit; i++)
{
ThreadState perThread = perThreadPool.GetThreadState(i);
perThread.@Lock();
try
{
AbortThreadState(perThread, newFilesSet);
}
finally
{
perThread.Unlock();
}
}
flushControl.AbortPendingFlushes(newFilesSet);
PutEvent(new DeleteNewFilesEvent(newFilesSet));
flushControl.WaitForFlush();
success = true;
}
finally
{
if (infoStream.IsEnabled("DW"))
{
infoStream.Message("DW", "done abort; abortedFiles=" + Arrays.ToString(newFilesSet) + " success=" + success);
}
}
}
}
