/// <summary>Test that a java interruption can stop the watcher thread</summary>
/// <exception cref="System.Exception"/>
public virtual void TestInterruption()
{
DomainSocketWatcher watcher = NewDomainSocketWatcher(10);
watcher.watcherThread.Interrupt();
Uninterruptibles.JoinUninterruptibly(watcher.watcherThread);
watcher.Close();
}
/// <summary>
/// Creates a new DomainSocketWatcher and tracks its thread for termination due
/// to an unexpected exception.
/// </summary>
/// <remarks>
/// Creates a new DomainSocketWatcher and tracks its thread for termination due
/// to an unexpected exception. At the end of each test, if there was an
/// unexpected exception, then that exception is thrown to force a failure of
/// the test.
/// </remarks>
/// <param name="interruptCheckPeriodMs">
/// interrupt check period passed to
/// DomainSocketWatcher
/// </param>
/// <returns>new DomainSocketWatcher</returns>
/// <exception cref="System.Exception">if there is any failure</exception>
private DomainSocketWatcher NewDomainSocketWatcher(int interruptCheckPeriodMs)
{
DomainSocketWatcher watcher = new DomainSocketWatcher(interruptCheckPeriodMs, GetType
().Name);
watcher.watcherThread.SetUncaughtExceptionHandler(new _UncaughtExceptionHandler_200
(this));
return(watcher);
}
public _Runnable_149(AtomicInteger handled, int SocketNum, ReentrantLock Lock, AList
<DomainSocket[]> pairs, DomainSocketWatcher watcher)
{
this.handled = handled;
this.SocketNum = SocketNum;
this.Lock = Lock;
this.pairs = pairs;
this.watcher = watcher;
}
/// <summary>Test that domain sockets are closed when the watcher is closed.</summary>
/// <exception cref="System.Exception"/>
public virtual void TestCloseSocketOnWatcherClose()
{
DomainSocketWatcher watcher = NewDomainSocketWatcher(10000000);
DomainSocket[] pair = DomainSocket.Socketpair();
watcher.Add(pair[1], new _Handler_103());
watcher.Close();
Uninterruptibles.JoinUninterruptibly(watcher.watcherThread);
NUnit.Framework.Assert.IsFalse(pair[1].IsOpen());
}
/// <summary>Test that we can get notifications out a DomainSocketWatcher.</summary>
/// <exception cref="System.Exception"/>
public virtual void TestDeliverNotifications()
{
DomainSocketWatcher watcher = NewDomainSocketWatcher(10000000);
DomainSocket[] pair = DomainSocket.Socketpair();
CountDownLatch latch = new CountDownLatch(1);
watcher.Add(pair[1], new _Handler_73(latch));
pair[0].Close();
latch.Await();
watcher.Close();
}
/// <exception cref="System.Exception"/>
public virtual void TestStress()
{
int SocketNum = 250;
ReentrantLock Lock = new ReentrantLock();
DomainSocketWatcher watcher = NewDomainSocketWatcher(10000000);
AList <DomainSocket[]> pairs = new AList <DomainSocket[]>();
AtomicInteger handled = new AtomicInteger(0);
Thread adderThread = new Thread(new _Runnable_122(SocketNum, watcher
, Lock, pairs, handled));
Thread removerThread = new Thread(new _Runnable_149(handled, SocketNum
, Lock, pairs, watcher));
adderThread.Start();
removerThread.Start();
Uninterruptibles.JoinUninterruptibly(adderThread);
Uninterruptibles.JoinUninterruptibly(removerThread);
watcher.Close();
}
public void Run()
{
if (DomainSocketWatcher.Log.IsDebugEnabled())
{
DomainSocketWatcher.Log.Debug(this + ": starting with interruptCheckPeriodMs = "
+ this._enclosing.interruptCheckPeriodMs);
}
SortedDictionary <int, DomainSocketWatcher.Entry> entries = new SortedDictionary <int
, DomainSocketWatcher.Entry>();
DomainSocketWatcher.FdSet fdSet = new DomainSocketWatcher.FdSet();
this._enclosing.AddNotificationSocket(entries, fdSet);
try
{
while (true)
{
this._enclosing.Lock.Lock();
try
{
foreach (int fd in fdSet.GetAndClearReadableFds())
{
this._enclosing.SendCallbackAndRemove("getAndClearReadableFds", entries, fdSet, fd
);
}
if (!(this._enclosing.toAdd.IsEmpty() && this._enclosing.toRemove.IsEmpty()))
{
// Handle pending additions (before pending removes).
for (IEnumerator <DomainSocketWatcher.Entry> iter = this._enclosing.toAdd.GetEnumerator
(); iter.HasNext();)
{
DomainSocketWatcher.Entry entry = iter.Next();
DomainSocket sock = entry.GetDomainSocket();
DomainSocketWatcher.Entry prevEntry = entries[sock.fd] = entry;
Preconditions.CheckState(prevEntry == null, this + ": tried to watch a file descriptor that we "
+ "were already watching: " + sock);
if (DomainSocketWatcher.Log.IsTraceEnabled())
{
DomainSocketWatcher.Log.Trace(this + ": adding fd " + sock.fd);
}
fdSet.Add(sock.fd);
iter.Remove();
}
// Handle pending removals
while (true)
{
KeyValuePair <int, DomainSocket> entry = this._enclosing.toRemove.FirstEntry();
if (entry == null)
{
break;
}
this._enclosing.SendCallbackAndRemove("handlePendingRemovals", entries, fdSet, entry
.Value.fd);
}
this._enclosing.processedCond.SignalAll();
}
// Check if the thread should terminate. Doing this check now is
// easier than at the beginning of the loop, since we know toAdd and
// toRemove are now empty and processedCond has been notified if it
// needed to be.
if (this._enclosing.closed)
{
if (DomainSocketWatcher.Log.IsDebugEnabled())
{
DomainSocketWatcher.Log.Debug(this.ToString() + " thread terminating.");
}
return;
}
// Check if someone sent our thread an InterruptedException while we
// were waiting in poll().
if (Thread.Interrupted())
{
throw new Exception();
}
}
finally
{
this._enclosing.Lock.Unlock();
}
DomainSocketWatcher.DoPoll0(this._enclosing.interruptCheckPeriodMs, fdSet);
}
}
catch (Exception)
{
DomainSocketWatcher.Log.Info(this.ToString() + " terminating on InterruptedException"
);
}
catch (Exception e)
{
DomainSocketWatcher.Log.Error(this.ToString() + " terminating on exception", e);
}
finally
{
this._enclosing.Lock.Lock();
try
{
this._enclosing.Kick();
// allow the handler for notificationSockets[0] to read a byte
foreach (DomainSocketWatcher.Entry entry in entries.Values)
{
// We do not remove from entries as we iterate, because that can
// cause a ConcurrentModificationException.
this._enclosing.SendCallback("close", entries, fdSet, entry.GetDomainSocket().fd);
}
entries.Clear();
fdSet.Close();
}
finally
{
this._enclosing.Lock.Unlock();
}
}
}
public _Runnable_451(DomainSocketWatcher _enclosing)
{
this._enclosing = _enclosing;
}
internal NotificationHandler(DomainSocketWatcher _enclosing)
{
this._enclosing = _enclosing;
}
/// <summary>Test that we can create a DomainSocketWatcher and then shut it down.</summary>
/// <exception cref="System.Exception"/>
public virtual void TestCreateShutdown()
{
DomainSocketWatcher watcher = NewDomainSocketWatcher(10000000);
watcher.Close();
}