/// <summary>
/// Implements IOutboundTransport.UnsubscribeClient
/// </summary>
public void UnsubscribeClient(string clientId)
{
_listlock.AcquireReaderLock(DEFAULT_JOIN_TIMEOUT);
try
{
if (!_clients.ContainsKey(clientId))
{
throw new ClientNotSubscribedException();
}
LockCookie ck = _listlock.UpgradeToWriterLock(DEFAULT_JOIN_TIMEOUT);
try
{
UdpClientExpire client = _clients[clientId];
_clients.Remove(clientId);
client.Client.Close();
}
catch (Exception ex)
{
throw new TransportException("Unable to unsubscribe client", ex);
}
finally
{
_listlock.DowngradeFromWriterLock(ref ck);
}
}
finally
{
_listlock.ReleaseReaderLock();
}
}
/// <summary>
/// 一次将对象添加到结尾处(如果已含则不添加)
/// </summary>
/// <param name="item">要添加的对象. 对于引用类型, 该值可以为 null</param>
public bool AddOnce(T item)
{
_rwLock.AcquireReaderLock(Timeout.Infinite);
try
{
if (!_infos.Contains(item))
{
LockCookie lockCookie = _rwLock.UpgradeToWriterLock(Timeout.Infinite);
try
{
DoAdd(item);
return(true);
}
finally
{
_rwLock.DowngradeFromWriterLock(ref lockCookie);
}
}
return(false);
}
finally
{
_rwLock.ReleaseReaderLock();
}
}
Type CreateDynamicClass(DynamicProperty[] properties)
{
LockCookie cookie = rwLock.UpgradeToWriterLock(Timeout.Infinite);
try
{
string typeName = "DynamicClass" + (classCount + 1);
#if ENABLE_LINQ_PARTIAL_TRUST
new ReflectionPermission(PermissionState.Unrestricted).Assert();
#endif
try
{
TypeBuilder tb = this.module.DefineType(typeName, TypeAttributes.Class |
TypeAttributes.Public, typeof(DynamicClass));
FieldInfo[] fields = GenerateProperties(tb, properties);
GenerateEquals(tb, fields);
GenerateGetHashCode(tb, fields);
Type result = tb.CreateType();
classCount++;
return(result);
}
finally
{
#if ENABLE_LINQ_PARTIAL_TRUST
PermissionSet.RevertAssert();
#endif
}
}
finally
{
rwLock.DowngradeFromWriterLock(ref cookie);
}
}
Type CreateDynamicClass(DynamicProperty[] properties)
{
LockCookie cookie = rwLock.UpgradeToWriterLock(Timeout.Infinite);
try
{
string typeName = "DynamicClass" + (classCount + 1);
try
{
TypeBuilder tb = this.module.DefineType(typeName, TypeAttributes.Class |
TypeAttributes.Public, typeof(DynamicClass));
FieldInfo[] fields = GenerateProperties(tb, properties);
GenerateEquals(tb, fields);
GenerateGetHashCode(tb, fields);
Type result = tb.CreateType();
classCount++;
return(result);
}
finally
{
}
}
finally
{
rwLock.DowngradeFromWriterLock(ref cookie);
}
}
/// <summary>
/// 将集合的元素复制到新数组中
/// <param name="clearSource">并清空源</param>
/// </summary>
public T[] ToArray(bool clearSource = false)
{
_rwLock.AcquireReaderLock(Timeout.Infinite);
try
{
T[] result = _infos.ToArray();
if (clearSource)
{
LockCookie lockCookie = _rwLock.UpgradeToWriterLock(Timeout.Infinite);
try
{
DoClear();
}
finally
{
_rwLock.DowngradeFromWriterLock(ref lockCookie);
}
}
return(result);
}
finally
{
_rwLock.ReleaseReaderLock();
}
}
private bool IsValidValue(TKey key, TValue value)
{
if (IsCached)
{
if (key != null && value == null)
{
if (!_infos.TryGetValue(key, out value))
{
return(false);
}
}
if (((ICachedObject)value).IsInvalid)
{
if (key != null)
{
LockCookie lockCookie = _rwLock.UpgradeToWriterLock(Timeout.Infinite);
try
{
_infos.Remove(key);
}
finally
{
_rwLock.DowngradeFromWriterLock(ref lockCookie);
}
}
return(false);
}
}
return(true);
}
private void TrimValidValue()
{
if (IsCached)
{
List <TKey> invalids = new List <TKey>();
foreach (KeyValuePair <TKey, TValue> kvp in _infos)
{
if (((ICachedObject)kvp.Value).IsInvalid)
{
invalids.Add(kvp.Key);
}
}
if (invalids.Count > 0)
{
LockCookie lockCookie = _rwLock.UpgradeToWriterLock(Timeout.Infinite);
try
{
foreach (TKey item in invalids)
{
_infos.Remove(item);
}
}
finally
{
_rwLock.DowngradeFromWriterLock(ref lockCookie);
}
}
}
}
public Bitmap GetBitmap(IconSize size, string fileName, bool isDirectory, bool forceLoad)
{
Bitmap retVal = null;
sysImgListLock.AcquireReaderLock(1000);
try
{
if (!sysImgList.IsImageListInited || size != sysImgList.CurrentImageListSize)
{
LockCookie lockCookie = sysImgListLock.UpgradeToWriterLock(Timeout.Infinite);
try
{
SystemImageList imgList = sysImgList[size];
retVal = imgList[fileName, isDirectory, forceLoad];
}
finally
{
sysImgListLock.DowngradeFromWriterLock(ref lockCookie);
}
}
else
{
retVal = sysImgList[size][fileName, isDirectory, forceLoad];
}
}
finally { sysImgListLock.ReleaseReaderLock(); }
return(retVal);
}
/**
* <summary>
* Close all idle connections more then "timeout" milliseconds.</summary>
*
* <param name="timeout">Idle timeout in ms.</param>
*/
public void closeIdle(TimeSpan timeout)
{
LockCookie cookie = default(LockCookie);
if (guard.IsReaderLockHeld)
{
cookie = guard.UpgradeToWriterLock(Timeout.Infinite);
}
else
{
guard.AcquireWriterLock(Timeout.Infinite);
}
try {
removeConnections(conn => conn.CloseIfIdle(timeout));
}
finally {
if (cookie == default(LockCookie))
{
guard.ReleaseWriterLock();
}
else
{
guard.DowngradeFromWriterLock(ref cookie);
}
}
}
/// <summary>
/// Runs operation with Writer lock privelege.
/// </summary>
/// <param name="lockObj"></param>
/// <param name="timeout"></param>
/// <param name="doWork"></param>
/// <returns></returns>
public static void GetWriteLock(ReaderWriterLock lockObj, int timeout, DoWorkFunc doWork)
{
RWLockStatus status = (lockObj.IsWriterLockHeld ? RWLockStatus.WRITE_LOCK : (lockObj.IsReaderLockHeld ? RWLockStatus.READ_LOCK : RWLockStatus.UNLOCKED));
LockCookie writeLock = default(LockCookie);
if (status == RWLockStatus.READ_LOCK)
{
writeLock = lockObj.UpgradeToWriterLock(timeout);
}
else if (status == RWLockStatus.UNLOCKED)
{
lockObj.AcquireWriterLock(timeout);
}
try {
doWork();
} finally {
if (status == RWLockStatus.READ_LOCK)
{
lockObj.DowngradeFromWriterLock(ref writeLock);
}
else if (status == RWLockStatus.UNLOCKED)
{
lockObj.ReleaseWriterLock();
}
}
}
// Shows how to request a reader lock, upgrade the
// reader lock to the writer lock, and downgrade to a
// reader lock again.
static void UpgradeDowngrade(int timeOut)
{
try
{
rwl.AcquireReaderLock(timeOut);
try
{
// It is safe for this thread to read from
// the shared resource.
Display("reads resource value " + resource);
Interlocked.Increment(ref reads);
// If it is necessary to write to the resource,
// you must either release the reader lock and
// then request the writer lock, or upgrade the
// reader lock. Note that upgrading the reader lock
// puts the thread in the write queue, behind any
// other threads that might be waiting for the
// writer lock.
try
{
LockCookie lc = rwl.UpgradeToWriterLock(timeOut);
try
{
// It is safe for this thread to read or write
// from the shared resource.
resource = rnd.Next(500);
Display("writes resource value " + resource);
Interlocked.Increment(ref writes);
}
finally
{
// Ensure that the lock is released.
rwl.DowngradeFromWriterLock(ref lc);
}
}
catch (ApplicationException)
{
// The upgrade request timed out.
Interlocked.Increment(ref writerTimeouts);
}
// When the lock has been downgraded, it is
// still safe to read from the resource.
Display("reads resource value " + resource);
Interlocked.Increment(ref reads);
}
finally
{
// Ensure that the lock is released.
rwl.ReleaseReaderLock();
}
}
catch (ApplicationException)
{
// The reader lock request timed out.
Interlocked.Increment(ref readerTimeouts);
}
}
private static void AddHandler(object obj, RoadEvent e, RoadEventHandler del, bool unique)
{
if (obj == null)
{
throw new ArgumentNullException("obj", "No object given!");
}
if (e == null)
{
throw new ArgumentNullException("e", "No event type given!");
}
if (del == null)
{
throw new ArgumentNullException("del", "No event handler given!");
}
if (!e.IsValidFor(obj))
{
throw new ArgumentException("Object is not valid for this event type", "obj");
}
try
{
GameEventMgr.m_lock.AcquireReaderLock(3000);
try
{
RoadEventHandlerCollection roadEventHandlerCollection = (RoadEventHandlerCollection)GameEventMgr.m_GameObjectEventCollections[obj];
if (roadEventHandlerCollection == null)
{
roadEventHandlerCollection = new RoadEventHandlerCollection();
LockCookie lockCookie = GameEventMgr.m_lock.UpgradeToWriterLock(3000);
try
{
GameEventMgr.m_GameObjectEventCollections[obj] = roadEventHandlerCollection;
}
finally
{
GameEventMgr.m_lock.DowngradeFromWriterLock(ref lockCookie);
}
}
if (unique)
{
roadEventHandlerCollection.AddHandlerUnique(e, del);
}
else
{
roadEventHandlerCollection.AddHandler(e, del);
}
}
finally
{
GameEventMgr.m_lock.ReleaseReaderLock();
}
}
catch (ApplicationException exception)
{
if (GameEventMgr.log.IsErrorEnabled)
{
GameEventMgr.log.Error("Failed to add local event handler!", exception);
}
}
}
public bool Equals(LockCookie obj)
{
return
_flags == obj._flags &&
_readerLevel == obj._readerLevel &&
_writerLevel == obj._writerLevel &&
_threadID == obj._threadID;
}
public bool Equals(LockCookie obj)
{
return
(_flags == obj._flags &&
_readerLevel == obj._readerLevel &&
_writerLevel == obj._writerLevel &&
_threadID == obj._threadID);
}
// Token: 0x06000B7A RID: 2938 RVA: 0x0004A418 File Offset: 0x00048618
private static bool InternalCheckForAutomaticBooking(bool isEventForConfigObject, MailboxSession itemStore, CachedState cachedState)
{
cachedState.LockForRead();
CalendarConfiguration calendarConfiguration;
try
{
calendarConfiguration = (cachedState.State[0] as CalendarConfiguration);
if (calendarConfiguration == null || isEventForConfigObject)
{
LockCookie lockCookie = cachedState.UpgradeToWriterLock();
try
{
using (CalendarConfigurationDataProvider calendarConfigurationDataProvider = new CalendarConfigurationDataProvider(itemStore))
{
calendarConfiguration = (CalendarConfiguration)calendarConfigurationDataProvider.Read <CalendarConfiguration>(null);
if (calendarConfiguration == null)
{
Globals.Logger.LogEvent(InfoWorkerEventLogConstants.Tuple_CorruptCalendarConfiguration, null, new object[]
{
itemStore.MailboxOwner.LegacyDn
});
calendarConfigurationDataProvider.Delete(new CalendarConfiguration());
calendarConfiguration = new CalendarConfiguration();
}
}
if (calendarConfiguration.AutomateProcessing == CalendarProcessingFlags.AutoAccept)
{
calendarConfiguration.AddNewRequestsTentatively = true;
}
cachedState.State[0] = calendarConfiguration;
ResourceCheck.Tracer.TraceDebug((long)itemStore.GetHashCode(), "{0}: The calendar settings object was new or has been changed - (re)reading contents.", new object[]
{
TraceContext.Get()
});
}
catch (ObjectNotFoundException innerException)
{
ResourceCheck.Tracer.TraceError((long)itemStore.GetHashCode(), "{0}: The calendar configuration was deleted while we were looking at it. Back off and retry.", new object[]
{
TraceContext.Get()
});
throw new TransientMailboxException(innerException);
}
finally
{
cachedState.DowngradeFromWriterLock(ref lockCookie);
}
}
}
finally
{
cachedState.ReleaseReaderLock();
}
ResourceCheck.Tracer.TraceDebug <object, CalendarProcessingFlags>((long)itemStore.GetHashCode(), "{0}: MailboxType {1}", TraceContext.Get(), calendarConfiguration.AutomateProcessing);
ResourceCheck.TracerPfd.TracePfd <int, object, CalendarProcessingFlags>((long)itemStore.GetHashCode(), "PFD IWR {0} {1}: ResourceMailbox: {2}", 19223, TraceContext.Get(), calendarConfiguration.AutomateProcessing);
return(calendarConfiguration.AutomateProcessing == CalendarProcessingFlags.AutoAccept);
}
// Shows how to release all locks and later restore
// the lock state. Shows how to use sequence numbers
// to determine whether another thread has obtained
// a writer lock since this thread last accessed the
// resource.
static void ReleaseRestore(int timeOut)
{
int lastWriter;
try
{
rwl.AcquireReaderLock(timeOut);
try
{
// It is safe for this thread to read from
// the shared resource. Cache the value. (You
// might do this if reading the resource is
// an expensive operation.)
int resourceValue = resource;
Display("reads resource value " + resourceValue);
Interlocked.Increment(ref reads);
// Save the current writer sequence number.
lastWriter = rwl.WriterSeqNum;
// Release the lock, and save a cookie so the
// lock can be restored later.
LockCookie lc = rwl.ReleaseLock();
// Wait for a random interval (up to a
// quarter of a second), and then restore
// the previous state of the lock. Note that
// there is no time-out on the Restore method.
Thread.Sleep(rnd.Next(250));
rwl.RestoreLock(ref lc);
// Check whether other threads obtained the
// writer lock in the interval. If not, then
// the cached value of the resource is still
// valid.
if (rwl.AnyWritersSince(lastWriter))
{
resourceValue = resource;
Interlocked.Increment(ref reads);
Display("resource has changed " + resourceValue);
}
else
{
Display("resource has not changed " + resourceValue);
}
}
finally
{
// Ensure that the lock is released.
rwl.ReleaseReaderLock();
}
}
catch (ApplicationException)
{
// The reader lock request timed out.
Interlocked.Increment(ref readerTimeouts);
}
}
/// <summary>
/// Get Wcf client instance.
/// </summary>
/// <typeparam name="TTypeBuilder">The proxy class builder.</typeparam>
/// <param name="caching">Caching dictionary to use.</param>
/// <param name="endpointConfigurationName">The name of the endpoint in the application configuration file.</param>
/// <param name="remoteUri">The URI that identifies the service endpoint.</param>
/// <param name="fromCaching">Whether get instance from caching or not.</param>
/// <returns>Instance of a ClientBase derived class.</returns>
private static TChannel GetInstance <TTypeBuilder>(Dictionary <string, TChannel> caching, string endpointConfigurationName, string remoteUri, bool fromCaching = true) where TTypeBuilder : IWcfClientTypeBuilder, new()
{
if (fromCaching)
{
string key = string.Format(WcfClientProxyDictionaryKeyStringFormat, endpointConfigurationName ?? string.Empty, string.IsNullOrEmpty(remoteUri) ? string.Empty : remoteUri.ToLowerInvariant());
Lock.AcquireReaderLock(Timeout.Infinite);
try
{
if (caching.ContainsKey(key))
{
return(caching[key]);
}
else
{
LockCookie lockCookie = Lock.UpgradeToWriterLock(Timeout.Infinite);
try
{
if (caching.ContainsKey(key))
{
return(caching[key]);
}
else
{
Type type = WcfClientType.BuildType <TChannel, TTypeBuilder>();
TChannel result = string.IsNullOrEmpty(remoteUri) ?
(TChannel)Activator.CreateInstance(type, endpointConfigurationName) :
(TChannel)Activator.CreateInstance(type, endpointConfigurationName, new EndpointAddress(remoteUri));
caching.Add(key, result);
return(result);
}
}
finally
{
Lock.DowngradeFromWriterLock(ref lockCookie);
}
}
}
finally
{
Lock.ReleaseReaderLock();
}
}
else
{
Type type = WcfClientType.BuildType <TChannel, TTypeBuilder>();
return(string.IsNullOrEmpty(remoteUri) ?
(TChannel)Activator.CreateInstance(type, endpointConfigurationName) :
(TChannel)Activator.CreateInstance(type, endpointConfigurationName, new EndpointAddress(remoteUri)));
}
}
private static void doWork(object objState)
{
List <KeyValuePair <string, ScheduledTasks.jobItem> > list = null;
try
{
ScheduledTasks._RWLockDict.AcquireReaderLock(-1);
ulong tickCount = Utilities.GetTickCount();
foreach (KeyValuePair <string, ScheduledTasks.jobItem> current in ScheduledTasks._dictSchedule)
{
if (tickCount > current.Value._ulRunAfter)
{
current.Value._ulRunAfter = 18446744073709551615uL;
if (list == null)
{
list = new List <KeyValuePair <string, ScheduledTasks.jobItem> >();
}
list.Add(current);
}
}
if (list == null)
{
return;
}
LockCookie lockCookie = ScheduledTasks._RWLockDict.UpgradeToWriterLock(-1);
try
{
foreach (KeyValuePair <string, ScheduledTasks.jobItem> current2 in list)
{
ScheduledTasks._dictSchedule.Remove(current2.Key);
}
if (ScheduledTasks._dictSchedule.Count < 1 && ScheduledTasks._timerInternal != null)
{
ScheduledTasks._timerInternal.Dispose();
ScheduledTasks._timerInternal = null;
}
}
finally
{
ScheduledTasks._RWLockDict.DowngradeFromWriterLock(ref lockCookie);
}
}
finally
{
ScheduledTasks._RWLockDict.ReleaseReaderLock();
}
foreach (KeyValuePair <string, ScheduledTasks.jobItem> current3 in list)
{
try
{
current3.Value._oJob();
}
catch (Exception)
{
}
}
}
public bool Load()
{
try
{
LockCookie upgrade = new LockCookie();
bool upgraded = false;
if (locker.IsReaderLockHeld)
{
upgrade = locker.UpgradeToWriterLock(new TimeSpan(0, 1, 0));
upgraded = true;
}
else
{
locker.AcquireWriterLock(new TimeSpan(0, 1, 0));
}
try
{
try
{
if (File.Exists(ConfigurationManagement.Instance.ConfigurationPath + Path.DirectorySeparatorChar + "IPLists.cfg"))
{
XmlSerializer serializer = new XmlSerializer(typeof(SerializableDictionary <string, IPList>));
TextReader reader = new StreamReader(ConfigurationManagement.Instance.ConfigurationPath + Path.DirectorySeparatorChar + "IPLists.cfg");
iplists = (SerializableDictionary <string, IPList>)serializer.Deserialize(reader);
reader.Close();
reader.Dispose();
}
else
{
iplists = new SerializableDictionary <string, IPList>();
}
}
catch (Exception e)
{
Logging.LogCenter.Instance.LogException(e);
iplists = new SerializableDictionary <string, IPList>();
}
}
finally
{
if (upgraded)
{
locker.DowngradeFromWriterLock(ref upgrade);
}
else
{
locker.ReleaseWriterLock();
}
}
return(true);
}
catch (ApplicationException ex)
{
Logging.LogCenter.Instance.LogException(ex);
return(false);
}
}
void Bug_55909_bis_ReaderWriter()
{
rwlock.AcquireReaderLock(-1);
LockCookie lc = rwlock.UpgradeToWriterLock(-1);
Thread.Sleep(1000);
rwlock.DowngradeFromWriterLock(ref lc);
rwlock.ReleaseReaderLock();
}
/// <devdoc>
/// Removes an image from the image manager so it is no longer animated.
/// </devdoc>
public static void StopAnimate(Image image, EventHandler onFrameChangedHandler)
{
// Make sure we have a list of images
if (image == null || imageInfoList == null)
{
return;
}
// Acquire a writer lock to modify the image info list - See comments on Animate() about this locking.
bool readerLockHeld = rwImgListLock.IsReaderLockHeld;
LockCookie lockDowngradeCookie = new LockCookie();
threadWriterLockWaitCount++;
try {
if (readerLockHeld)
{
lockDowngradeCookie = rwImgListLock.UpgradeToWriterLock(Timeout.Infinite);
}
else
{
rwImgListLock.AcquireWriterLock(Timeout.Infinite);
}
}
finally {
threadWriterLockWaitCount--;
Debug.Assert(threadWriterLockWaitCount >= 0, "threadWriterLockWaitCount less than zero.");
}
try {
// Find the corresponding reference and remove it
for (int i = 0; i < imageInfoList.Count; i++)
{
ImageInfo imageInfo = imageInfoList[i];
if (image == imageInfo.Image)
{
if ((onFrameChangedHandler == imageInfo.FrameChangedHandler) || (onFrameChangedHandler != null && onFrameChangedHandler.Equals(imageInfo.FrameChangedHandler)))
{
imageInfoList.Remove(imageInfo);
}
break;
}
}
}
finally {
if (readerLockHeld)
{
rwImgListLock.DowngradeFromWriterLock(ref lockDowngradeCookie);
}
else
{
rwImgListLock.ReleaseWriterLock();
}
}
}
protected override void InternalDispose(bool isDisposing)
{
if (!this.disposed)
{
if (isDisposing)
{
this.HandleFinishRequestFromClient();
if (this.pendingRequestAliveTimer != null)
{
this.pendingRequestAliveTimer.Dispose();
this.pendingRequestAliveTimer = null;
}
if (this.pendingRequestEventHandler != null && !this.pendingRequestEventHandler.IsDisposed && this.lockTracker.TryReleaseAllLocks(new PendingNotifierLockTracker.ReleaseAllLocksCallback(this.pendingRequestEventHandler.Dispose)))
{
this.pendingRequestEventHandler.Dispose();
}
this.pendingRequestEventHandler = null;
LockCookie?lockCookie = null;
try
{
try
{
this.notifiersStateLock.LockWriterElastic(5000);
}
catch (OwaLockTimeoutException)
{
ExTraceGlobals.NotificationsCallTracer.TraceDebug((long)this.GetHashCode(), "Dispose was called but the writer lock is not available:");
return;
}
foreach (KeyValuePair <IPendingRequestNotifier, PendingRequestManager.PendingNotifierState> keyValuePair in this.notifierDataAvaiableState)
{
keyValuePair.Value.Dispose();
}
}
finally
{
if (this.notifiersStateLock.IsWriterLockHeld)
{
if (lockCookie != null)
{
LockCookie value = lockCookie.Value;
this.notifiersStateLock.DowngradeFromWriterLock(ref value);
}
else
{
this.notifiersStateLock.ReleaseWriterLock();
}
}
if (lockCookie != null && !this.notifiersStateLock.IsReaderLockHeld)
{
ExAssert.RetailAssert(true, "Lost readerwriterlock that was acquired before entering the method");
}
}
}
this.disposed = true;
}
}
/// <summary>
/// Find the materials used in one Face, and add them to 'm_regionMaterials'.
/// </summary>
private void GetStoredMaterialInFace(SceneObjectPart part, Primitive.TextureEntryFace face)
{
UUID id = face.MaterialID;
if (id == UUID.Zero)
{
return;
}
m_regionMaterialsRwLock.AcquireReaderLock(-1);
try
{
if (m_regionMaterials.ContainsKey(id))
{
return;
}
byte[] data = m_scene.AssetService.GetData(id.ToString());
if (data == null)
{
m_log.WarnFormat("[Materials]: Prim \"{0}\" ({1}) contains unknown material ID {2}", part.Name, part.UUID, id);
return;
}
OSDMap mat;
try
{
mat = (OSDMap)OSDParser.DeserializeLLSDXml(data);
}
catch (Exception e)
{
m_log.WarnFormat("[Materials]: cannot decode material asset {0}: {1}", id, e.Message);
return;
}
LockCookie lc = m_regionMaterialsRwLock.UpgradeToWriterLock(-1);
try
{
if (m_regionMaterials.ContainsKey(id))
{
return;
}
m_regionMaterials[id] = mat;
}
finally
{
m_regionMaterialsRwLock.DowngradeFromWriterLock(ref lc);
}
}
finally
{
m_regionMaterialsRwLock.ReleaseReaderLock();
}
}
public void Upgrade()
{
if (_lockMode != IICLockMode.ReaderLock)
{
throw new InvalidOperationException("lock mode can't upgraded:" + _lockMode);
}
_lockCookie = _innerLock.UpgradeToWriterLock(_msTimeout);
_lockMode = IICLockMode.UpdatedWriterLock;
}
/// <summary>
/// Downgrades from writer lock.
/// </summary>
public virtual void DowngradeFromWriterLock()
{
if (m_UpgradeLockCookie != null)
{
m_SynchronizeType = ReaderWriterLockSynchronizeType.Read;
LockCookie tempCookie = m_UpgradeLockCookie.Value;
m_Root.Sync.DowngradeFromWriterLock(ref tempCookie);
m_UpgradeLockCookie = null;
}
}
public void Bug_55909_Thread2()
{
rwlock.AcquireReaderLock(Timeout.Infinite);
try {
Thread.Sleep(1000);
LockCookie lc = rwlock.UpgradeToWriterLock(Timeout.Infinite);
Thread.Sleep(500);
}
finally { rwlock.ReleaseReaderLock(); }
}
private void ReleaseLock(LockCookie cookie, WriteLock wl)
{
if (wl != null)
{
wl.Dispose();
}
else
{
this.StreamsLock.DowngradeFromWriterLock(ref cookie);
}
}
public void UpgradeToWriterLock()
{
try
{
}
finally
{
this.lc = this.locker.UpgradeToWriterLock(this.timeout);
this.upgraded = true;
}
}
public void UpgradeToWriterLock()
{
Fx.Assert(!forWrite, "Invalid call to Upgrade!!");
Fx.Assert(!upgraded, "Already upgraded!");
try { }
finally
{
lc = locker.UpgradeToWriterLock(timeout);
upgraded = true;
}
}
/// <summary>
/// Opens the log file for the current application.
/// </summary>
/// <param name="logFile">Log file for the current application; if null or string.Empty use the default log file.</param>
/// <param name="loggerSetup">LoggerSetup info for the logger instance; if null use the default LoggerSetup info.</param>
/// <returns>Logger instance.</returns>
public static Logger Open(string logFile, LoggerSetup loggerSetup)
{
LogConfig logConfig = new LogConfig();
if (!string.IsNullOrEmpty(logFile))
{
logConfig.LogFile = logFile;
}
if (loggerSetup != null)
{
logConfig.LoggerSetup = loggerSetup;
}
int key = logConfig.GetHashCode();
Lock.AcquireReaderLock(Timeout.Infinite);
try
{
if (LoggerDictionary.ContainsKey(key))
{
return(LoggerDictionary[key]);
}
else
{
LockCookie lockCookie = Lock.UpgradeToWriterLock(Timeout.Infinite);
try
{
if (LoggerDictionary.ContainsKey(key))
{
return(LoggerDictionary[key]);
}
else
{
Logger result = new Logger(logConfig);
LoggerDictionary.Add(key, result);
return(result);
}
}
finally
{
Lock.DowngradeFromWriterLock(ref lockCookie);
}
}
}
finally
{
Lock.ReleaseReaderLock();
}
}
/// <summary>
/// Implements IOutboundTransport.UnsubscribeClient
/// </summary>
public void UnsubscribeClient(string clientId)
{
if (_disposed)
{
throw new ObjectDisposedException(GetType().FullName);
}
if (string.IsNullOrEmpty(clientId))
{
throw new ArgumentNullException("clientId");
}
TlsClient client = null;
_listLock.AcquireReaderLock(DEFAULT_JOIN_TIMEOUT);
try
{
if (!_clients.ContainsKey(clientId))
{
throw new TransportException("Client not subscribed to transport");
}
client = _clients[clientId];
//Remove
LockCookie ck = _listLock.UpgradeToWriterLock(DEFAULT_JOIN_TIMEOUT);
try
{
_clients.Remove(clientId);
}
finally
{
_listLock.DowngradeFromWriterLock(ref ck);
}
}
finally
{
_listLock.ReleaseReaderLock();
if (client != null)
{
try
{
client.Stream.Flush();
}
catch
{
}
finally
{
client.Dispose();
}
}
}
}
public void RestoreLock(LockCookie& lockCookie)
{
}
public void DowngradeFromWriterLock(ref LockCookie lockCookie)
{
this.DowngradeFromWriterLockInternal(ref lockCookie);
}
// Release all locks for the current thread and save them.
public LockCookie ReleaseLock()
{
lock(this)
{
// Get the lock information for this thread.
LockInfo info = GetLockInfo();
if(info == null)
{
return new LockCookie
(LockCookie.CookieType.None,
Thread.CurrentThread, 0, 0);
}
// Bail out if the thread doesn't have any locks.
if(info.numReadLocks == 0 && info.numWriteLocks == 0)
{
return new LockCookie
(LockCookie.CookieType.None,
Thread.CurrentThread, 0, 0);
}
// Copy the lock infomation into the cookie.
LockCookie cookie = new LockCookie
(LockCookie.CookieType.Saved,
Thread.CurrentThread,
info.numReadLocks, info.numWriteLocks);
// Release the active locks.
numReadLocks -= info.numReadLocks;
numWriteLocks -= info.numWriteLocks;
info.numReadLocks = 0;
info.numWriteLocks = 0;
// Determine if we need to wake up a waiting thread.
if(numReadLocks == 0 || numWriteLocks == 0)
{
Monitor.Pulse(this);
}
// Return the cookie to the caller.
return cookie;
}
}
// Downgrade the current thread from a writer lock.
public void DowngradeFromWriterLock(ref LockCookie lockCookie)
{
lock(this)
{
// Get the lock information for this thread.
LockInfo info = GetLockInfo();
if(info == null)
{
return;
}
// Bail out if the cookie is not "Upgrade".
if(lockCookie.type != LockCookie.CookieType.Upgrade ||
lockCookie.thread != Thread.CurrentThread)
{
return;
}
// Restore the thread to its previous lock state.
RestoreLockState(info, lockCookie.readCount,
lockCookie.writeCount);
}
}
// Update the current thread to a writer lock.
public LockCookie UpgradeToWriterLock(int millisecondsTimeout)
{
LockCookie cookie;
if(millisecondsTimeout < -1)
{
throw new ArgumentOutOfRangeException
("millisecondsTimeout",
_("ArgRange_NonNegOrNegOne"));
}
lock(this)
{
// Get the lock information for this thread.
LockInfo info = GetOrCreateLockInfo();
// Bail out early if we already have the writer lock.
if(info.numWriteLocks > 0)
{
cookie = new LockCookie
(LockCookie.CookieType.Upgrade,
Thread.CurrentThread,
info.numReadLocks, info.numWriteLocks);
++(info.numWriteLocks);
++numWriteLocks;
lastWriteSeqNum = ++seqNum;
return cookie;
}
// If we have the read lock, then upgrade it.
if(info.numReadLocks > 0)
{
cookie = new LockCookie
(LockCookie.CookieType.Upgrade,
Thread.CurrentThread,
info.numReadLocks, info.numWriteLocks);
info.numWriteLocks += info.numReadLocks;
numReadLocks -= info.numReadLocks;
numWriteLocks -= info.numReadLocks;
info.numReadLocks = 0;
lastWriteSeqNum = ++seqNum;
return cookie;
}
// Block while some other thread has the read or write lock.
if(millisecondsTimeout == -1)
{
while(numReadLocks > 0 || numWriteLocks > 0)
{
if(!Monitor.Wait(this))
{
return new LockCookie
(LockCookie.CookieType.None,
Thread.CurrentThread, 0, 0);
}
}
}
else
{
DateTime expire = DateTime.UtcNow +
new TimeSpan(millisecondsTimeout *
TimeSpan.TicksPerMillisecond);
DateTime now;
int ms;
while(numReadLocks > 0 || numWriteLocks > 0)
{
now = DateTime.UtcNow;
if(now >= expire)
{
return new LockCookie
(LockCookie.CookieType.None,
Thread.CurrentThread, 0, 0);
}
ms = (int)((expire - now).Ticks /
TimeSpan.TicksPerMillisecond);
if(!Monitor.Wait(this, ms))
{
return new LockCookie
(LockCookie.CookieType.None,
Thread.CurrentThread, 0, 0);
}
}
}
// Update the thread and global write lock counts.
cookie = new LockCookie
(LockCookie.CookieType.Upgrade,
Thread.CurrentThread,
info.numReadLocks, info.numWriteLocks);
++(info.numWriteLocks);
++numWriteLocks;
lastWriteSeqNum = ++seqNum;
return cookie;
}
}
// Restore all locks for the curent thread to a previous "Release" value.
public void RestoreLock(ref LockCookie lockCookie)
{
lock(this)
{
// Get the lock information for this thread.
LockInfo info = GetLockInfo();
if(info == null)
{
return;
}
// Bail out if the cookie is not "Saved" or if
// we have prevailing locks at the moment.
if(lockCookie.type != LockCookie.CookieType.Saved ||
lockCookie.thread != Thread.CurrentThread ||
info.numReadLocks > 0 ||
info.numWriteLocks > 0)
{
return;
}
// Restore the thread to its previous lock state.
RestoreLockState(info, lockCookie.readCount,
lockCookie.writeCount);
}
}
public bool Equals(LockCookie obj) {}
public bool Equals(LockCookie obj)
{
return ((((obj._dwFlags == this._dwFlags) && (obj._dwWriterSeqNum == this._dwWriterSeqNum)) && (obj._wReaderAndWriterLevel == this._wReaderAndWriterLevel)) && (obj._dwThreadID == this._dwThreadID));
}
public void DowngradeFromWriterLock(LockCookie& lockCookie)
{
}
void ReaderFunc( )
{
int ReadL = Interlocked.Increment(ref ReadX);
LockCookie upgradeCookie = new LockCookie( );
try
{
if((rwLock.IsReaderLockHeld)||(rwLock.IsWriterLockHeld))
lock(this)
Console.WriteLine(" {0}, Reader -BAD- No Locks should be held now.",ReadL);
}
catch(Exception e)
{
lock(this)
Console.WriteLine(" {0}, Reader -BAD- (IsReaderLockHeld || IsWriterLockHeld) {1}",ReadL,e.ToString());
failed = 1;
}
try
{
lock(this)
Console.WriteLine(" {0}, Reader -fyi- Before AcquireReaderLock.",ReadL);
rwLock.AcquireReaderLock(1000);
lock(this)
Console.WriteLine(" {0}, Reader -fyi- After AcquireReaderLock.",ReadL);
}
catch(Exception e)
{
lock(this)
Console.WriteLine(" {0}, Reader -BAD- (AcquireReaderLock) {1}",ReadL,e.ToString());
failed = 1;
}
Thread.Sleep(10);
try
{
if(!(rwLock.IsReaderLockHeld))
lock(this)
Console.WriteLine(" {0}, Reader -BAD- ReaderLock FALSE",ReadL);
lock(this)
Console.WriteLine(" {0}, Reader -fyi- Before UpgradeToWriterLock.",ReadL);
upgradeCookie = rwLock.UpgradeToWriterLock(1000);
lock(this)
Console.WriteLine(" {0}, Reader -fyi- After UpgradeToWriterLock.",ReadL);
}
catch(Exception e)
{
lock(this)
Console.WriteLine(" {0}, Reader -BAD- (UpgradeToWriterLock) {1}",ReadL,e.ToString());
failed = 1;
}
try
{
if(rwLock.IsReaderLockHeld)
{
lock(this)
Console.WriteLine(" {0}, Reader -BAD- ReaderLock TRUE",ReadL);
}
if(!(rwLock.IsWriterLockHeld))
{
lock(this)
Console.WriteLine(" {0}, Reader -BAD- WriterLock FALSE",ReadL);
}
lock(this)
Console.WriteLine(" {0}, Reader -fyi- Before DowngradeFromWriterLock.",ReadL);
rwLock.DowngradeFromWriterLock(ref upgradeCookie);
lock(this)
Console.WriteLine(" {0}, Reader -fyi- After DowngradeFromWriterLock.",ReadL);
}
catch(Exception e)
{
lock(this)
Console.WriteLine(" {0}, Reader -BAD- (DowngradeFromWriterLock) {1}",ReadL,e.ToString());
failed = 1;
}
try
{
if(rwLock.IsWriterLockHeld)
lock(this)
Console.WriteLine(" {0}, Reader -BAD- WriterLock TRUE",ReadL);
if(!(rwLock.IsReaderLockHeld))
lock(this)
Console.WriteLine(" {0}, Reader -BAD- ReaderLock should be held now.",ReadL);
lock(this)
Console.WriteLine(" {0}, Reader -fyi- Before ReleaseReaderLock.",ReadL);
rwLock.ReleaseReaderLock( );
lock(this)
Console.WriteLine(" {0}, Reader -fyi- After ReleaseReaderLock.",ReadL);
}
catch(Exception e)
{
lock(this)
Console.WriteLine(" {0}, Reader -BAD- (ReleaseReaderLock) {1}",ReadL,e.ToString());
failed = 1;
}
try
{
if((rwLock.IsReaderLockHeld)||(rwLock.IsWriterLockHeld))
lock(this)
Console.WriteLine(" {0}, Reader -BAD- No Locks should be held now.",ReadL);
}
catch(Exception e)
{
lock(this)
Console.WriteLine(" {0}, Reader - {1}",ReadL,e.ToString());
failed = 1;
}
}
private extern void RestoreLockInternal(ref LockCookie lockCookie);
private extern void FCallUpgradeToWriterLock(ref LockCookie result, int millisecondsTimeout);
private extern void FCallReleaseLock(ref LockCookie result);
private extern void DowngradeFromWriterLockInternal(ref LockCookie lockCookie);
public LockCookie UpgradeToWriterLock(int millisecondsTimeout)
{
LockCookie result = new LockCookie();
this.FCallUpgradeToWriterLock(ref result, millisecondsTimeout);
return result;
}
void WriterFunc( )
{
int WriteL = Interlocked.Increment(ref WriteX);
LockCookie releaseCookie = new LockCookie( );
int iWriterSeqNum;
if((rwLock.IsReaderLockHeld)||(rwLock.IsWriterLockHeld))
lock(this)
Console.WriteLine("{0}, Writer -BAD- No Locks should be held now. (I)",WriteL);
try
{
lock(this)
Console.WriteLine("{0}, Writer -fyi- Before AcquireWriterLock.",WriteL);
rwLock.AcquireWriterLock(1000);
lock(this)
Console.WriteLine("{0}, Writer -fyi- After AcquireWriterLock.",WriteL);
}
catch(Exception e)
{
lock(this)
Console.WriteLine("{0}, Writer -BAD- (AcquireWriterLock) {1}",WriteL,e.ToString());
failed = 1;
}
Thread.Sleep(10);
try
{
if(!(rwLock.IsWriterLockHeld))
lock(this)
Console.WriteLine("{0}, Writer -BAD- WriterLock should be held now. (I)",WriteL);
iWriterSeqNum = rwLock.WriterSeqNum;
lock(this)
Console.WriteLine("{0}, Writer -fyi- Before ReleaseLock.",WriteL);
releaseCookie = rwLock.ReleaseLock( );
lock(this)
Console.WriteLine("{0}, Writer -fyi- After ReleaseLock.",WriteL);
if((rwLock.IsReaderLockHeld)||(rwLock.IsWriterLockHeld))
lock(this)
Console.WriteLine("{0}, Writer -BAD- No Locks should be held now. (II)",WriteL);
lock(this)
Console.WriteLine("{0}, Writer -fyi- Before RestoreLock.",WriteL);
rwLock.RestoreLock(ref releaseCookie);
lock(this)
Console.WriteLine("{0}, Writer -fyi- After RestoreLock.",WriteL);
if(!(rwLock.IsWriterLockHeld))
lock(this)
Console.WriteLine("{0}, Writer -BAD- WriterLock should be held now. (II)",WriteL);
lock(this)
Console.WriteLine("{0}, Writer -fyi- Before ReleaseWriterLock.",WriteL);
rwLock.ReleaseWriterLock( );
lock(this)
Console.WriteLine("{0}, Writer -fyi- After ReleaseWriterLock.",WriteL);
bool boX;
boX = rwLock.AnyWritersSince(iWriterSeqNum);
iWriterSeqNum = rwLock.WriterSeqNum;
boX = rwLock.AnyWritersSince(iWriterSeqNum);
}
catch(Exception e)
{
lock(this)
Console.WriteLine("{0}, Writer - {1}",WriteL,e.ToString());
failed = 1;
}
}
public LockCookie ReleaseLock()
{
LockCookie result = new LockCookie();
this.FCallReleaseLock(ref result);
return result;
}
public void RestoreLock(ref LockCookie lockCookie)
{
this.RestoreLockInternal(ref lockCookie);
}
public static bool op_Inequality(LockCookie a, LockCookie b) {}
