internal void Wait(object state)
{
try
{
WaitHandle[] waits = new WaitHandle[] { _waitObject, _cancelEvent };
do
{
int signal = WaitHandle.WaitAny(waits, _timeout, false);
if (!_unregistered)
{
lock (this) { _callsInProcess++; }
ThreadPool.QueueUserWorkItem(new WaitCallback(DoCallBack), (signal == WaitHandle.WaitTimeout));
}
}while (!_unregistered && !_executeOnlyOnce);
}
catch {}
lock (this) {
_unregistered = true;
if (_callsInProcess == 0 && _finalEvent != null)
{
NativeEventCalls.SetEvent_internal(_finalEvent.Handle);
}
}
}
private static OpenExistingResult OpenExistingWorker(string name, EventWaitHandleRights rights, out EventWaitHandle result)
{
if (name == null)
{
throw new ArgumentNullException("name", Environment.GetResourceString("ArgumentNull_WithParamName"));
}
if (name.Length == 0)
{
throw new ArgumentException(Environment.GetResourceString("Argument_EmptyName"), "name");
}
if (null != name && System.IO.Path.MAX_PATH < name.Length)
{
throw new ArgumentException(Environment.GetResourceString("Argument_WaitHandleNameTooLong", name));
}
Contract.EndContractBlock();
result = null;
#if MOBILE
throw new NotSupportedException();
#else
#if MONO
int errorCode;
var myHandle = new SafeWaitHandle(NativeEventCalls.OpenEvent_internal(name, rights, out errorCode), true);
#else
#if FEATURE_MACL
SafeWaitHandle myHandle = Win32Native.OpenEvent((int)rights, false, name);
#else
SafeWaitHandle myHandle = Win32Native.OpenEvent(Win32Native.EVENT_MODIFY_STATE | Win32Native.SYNCHRONIZE, false, name);
#endif
#endif
if (myHandle.IsInvalid)
{
#if !MONO
int errorCode = Marshal.GetLastWin32Error();
#endif
if (Win32Native.ERROR_FILE_NOT_FOUND == errorCode || Win32Native.ERROR_INVALID_NAME == errorCode)
{
return(OpenExistingResult.NameNotFound);
}
if (Win32Native.ERROR_PATH_NOT_FOUND == errorCode)
{
return(OpenExistingResult.PathNotFound);
}
if (null != name && 0 != name.Length && Win32Native.ERROR_INVALID_HANDLE == errorCode)
{
return(OpenExistingResult.NameInvalid);
}
//this is for passed through Win32Native Errors
__Error.WinIOError(errorCode, "");
}
result = new EventWaitHandle(myHandle);
return(OpenExistingResult.Success);
#endif
}
public EventWaitHandle(bool initialState, EventResetMode mode)
{
bool created;
bool manual = IsManualReset(mode);
Handle = NativeEventCalls.CreateEvent_internal(manual, initialState, null, out created);
}
public EventWaitHandle(bool initialState, EventResetMode mode,
string name, out bool createdNew)
{
bool manual = IsManualReset(mode);
Handle = NativeEventCalls.CreateEvent_internal(manual, initialState, name, out createdNew);
}
/// <summary>Initializes a new instance of the <see cref="T:System.Threading.EventWaitHandle" /> class, specifying whether the wait handle is initially signaled, and whether it resets automatically or manually.</summary>
/// <param name="initialState">true to set the initial state to signaled; false to set it to nonsignaled.</param>
/// <param name="mode">One of the <see cref="T:System.Threading.EventResetMode" /> values that determines whether the event resets automatically or manually.</param>
public EventWaitHandle(bool initialState, EventResetMode mode)
{
bool manual = this.IsManualReset(mode);
bool flag;
this.Handle = NativeEventCalls.CreateEvent_internal(manual, initialState, null, out flag);
}
public static EventWaitHandle OpenExisting(string name, EventWaitHandleRights rights)
{
if (name == null)
{
throw new ArgumentNullException("name");
}
if ((name.Length == 0) ||
(name.Length > 260))
{
throw new ArgumentException("name", Locale.GetText("Invalid length [1-260]."));
}
MonoIOError error;
IntPtr handle = NativeEventCalls.OpenEvent_internal(name, rights, out error);
if (handle == (IntPtr)null)
{
if (error == MonoIOError.ERROR_FILE_NOT_FOUND)
{
throw new WaitHandleCannotBeOpenedException(Locale.GetText("Named Event handle does not exist: ") + name);
}
else if (error == MonoIOError.ERROR_ACCESS_DENIED)
{
throw new UnauthorizedAccessException();
}
else
{
throw new IOException(Locale.GetText("Win32 IO error: ") + error.ToString());
}
}
return(new EventWaitHandle(handle));
}
internal void Wait(object state)
{
try
{
WaitHandle[] waitHandles = new WaitHandle[]
{
this._waitObject,
this._cancelEvent
};
do
{
int num = WaitHandle.WaitAny(waitHandles, this._timeout, false);
if (!this._unregistered)
{
lock (this)
{
this._callsInProcess++;
}
ThreadPool.QueueUserWorkItem(new WaitCallback(this.DoCallBack), num == 258);
}
}while (!this._unregistered && !this._executeOnlyOnce);
}
catch
{
}
lock (this)
{
this._unregistered = true;
if (this._callsInProcess == 0 && this._finalEvent != null)
{
NativeEventCalls.SetEvent_internal(this._finalEvent.Handle);
}
}
}
public bool Set()
{
lock (this) {
CheckDisposed();
return(NativeEventCalls.SetEvent(SafeWaitHandle));
}
}
internal void SignalNoCallbacksRunning()
{
#if !MONO
Win32Native.SetEvent(m_notifyWhenNoCallbacksRunning.SafeWaitHandle);
#else
NativeEventCalls.SetEvent_internal(m_notifyWhenNoCallbacksRunning.SafeWaitHandle.DangerousGetHandle());
#endif
}
public bool Set()
{
lock (this) {
CheckDisposed();
return(NativeEventCalls.SetEvent_internal(Handle));
}
}
public bool Reset()
{
/* This needs locking since another thread could dispose the handle */
lock (this) {
CheckDisposed();
return(NativeEventCalls.ResetEvent(SafeWaitHandle));
}
}
public bool Dispose(WaitHandle notifyObject)
{
if (notifyObject == null)
{
throw new ArgumentNullException("notifyObject");
}
Dispose();
NativeEventCalls.SetEvent_internal(notifyObject.Handle);
return(true);
}
public EventWaitHandle(bool initialState, EventResetMode mode, string name)
{
if (null != name && System.IO.Path.MAX_PATH < name.Length)
{
throw new ArgumentException(Environment.GetResourceString("Argument_WaitHandleNameTooLong", name));
}
Contract.EndContractBlock();
SafeWaitHandle _handle = null;
#if MONO
int errorCode;
#endif
switch (mode)
{
case EventResetMode.ManualReset:
#if MONO
_handle = new SafeWaitHandle(NativeEventCalls.CreateEvent_internal(true, initialState, name, out errorCode), true);
#else
_handle = Win32Native.CreateEvent(null, true, initialState, name);
#endif
break;
case EventResetMode.AutoReset:
#if MONO
_handle = new SafeWaitHandle(NativeEventCalls.CreateEvent_internal(false, initialState, name, out errorCode), true);
#else
_handle = Win32Native.CreateEvent(null, false, initialState, name);
#endif
break;
default:
throw new ArgumentException(Environment.GetResourceString("Argument_InvalidFlag", name));
}
;
if (_handle.IsInvalid)
{
#if !MONO
int errorCode = Marshal.GetLastWin32Error();
#endif
_handle.SetHandleAsInvalid();
if (null != name && 0 != name.Length && Win32Native.ERROR_INVALID_HANDLE == errorCode)
{
throw new WaitHandleCannotBeOpenedException(Environment.GetResourceString("Threading.WaitHandleCannotBeOpenedException_InvalidHandle", name));
}
__Error.WinIOError(errorCode, name);
}
SetHandleInternal(_handle);
}
private void DoCallBack(object timedOut)
{
if (this._callback != null)
{
this._callback(this._state, (bool)timedOut);
}
lock (this)
{
this._callsInProcess--;
if (this._unregistered && this._callsInProcess == 0 && this._finalEvent != null)
{
NativeEventCalls.SetEvent_internal(this._finalEvent.Handle);
}
}
}
[System.Security.SecuritySafeCritical] // auto-generated
public bool Reset()
{
#if MONO
var res = NativeEventCalls.ResetEvent(safeWaitHandle);
#else
bool res = Win32Native.ResetEvent(safeWaitHandle);
#endif
if (!res)
#if MONO
{ throw new IOException(); }
#else
{ __Error.WinIOError(); }
#endif
return(res);
}
internal void Wait(object state)
{
bool release = false;
try {
_waitObject.SafeWaitHandle.DangerousAddRef(ref release);
try {
WaitHandle[] waits = new WaitHandle[] { _waitObject, _cancelEvent };
do
{
int signal = WaitHandle.WaitAny(waits, _timeout, false);
if (!_unregistered)
{
lock (this) {
_callsInProcess++;
}
ThreadPool.QueueUserWorkItem(new WaitCallback(DoCallBack), (signal == WaitHandle.WaitTimeout));
}
} while (!_unregistered && !_executeOnlyOnce);
} catch {
}
lock (this) {
_unregistered = true;
if (_callsInProcess == 0 && _finalEvent != null)
{
#if NETCORE
throw new NotImplementedException();
#else
NativeEventCalls.SetEvent(_finalEvent.SafeWaitHandle);
_finalEvent = null;
#endif
}
}
} catch (ObjectDisposedException) {
// Can happen if we called Unregister before we had time to execute Wait
if (release)
{
throw;
}
} finally {
if (release)
{
_waitObject.SafeWaitHandle.DangerousRelease();
}
}
}
private void DoCallBack(object timedOut)
{
if (_callback != null)
{
try {
_callback(_state, (bool)timedOut);
} catch {}
}
lock (this)
{
_callsInProcess--;
if (_unregistered && _callsInProcess == 0 && _finalEvent != null)
{
NativeEventCalls.SetEvent(_finalEvent.SafeWaitHandle);
}
}
}
private void DoCallBack(object timedOut)
{
try {
if (_callback != null)
{
_callback(_state, (bool)timedOut);
}
} finally {
lock (this)
{
_callsInProcess--;
if (_unregistered && _callsInProcess == 0 && _finalEvent != null)
#if NETCORE
{ EventWaitHandle.Set(_finalEvent.SafeWaitHandle); }
#else
{ NativeEventCalls.SetEvent(_finalEvent.SafeWaitHandle); }
#endif
}
}
}
protected virtual void Dispose(bool explicitDisposing)
{
// Check to see if Dispose has already been called.
if (!disposed)
{
disposed = true;
if (os_handle == InvalidHandle)
{
return;
}
lock (this) {
if (os_handle != InvalidHandle)
{
NativeEventCalls.CloseEvent_internal(os_handle);
os_handle = InvalidHandle;
}
}
}
}
public static bool TryOpenExisting(string name, EventWaitHandleRights rights,
out EventWaitHandle result)
{
if (name == null)
{
throw new ArgumentNullException("name");
}
if ((name.Length == 0) || (name.Length > 260))
{
throw new ArgumentException("name", Locale.GetText("Invalid length [1-260]."));
}
MonoIOError error;
IntPtr handle = NativeEventCalls.OpenEvent_internal(name, rights, out error);
if (handle == (IntPtr)null)
{
result = null;
return(false);
}
result = new EventWaitHandle(handle);
return(true);
}
public EventWaitHandle(bool initialState, EventResetMode mode)
{
bool created;
Handle = NativeEventCalls.CreateEvent_internal((mode == EventResetMode.ManualReset), initialState, null, out created);
}
public AutoResetEvent(bool initialState)
{
bool created;
Handle = NativeEventCalls.CreateEvent_internal(false, initialState, null, out created);
}
/// <summary>Sets the state of the event to signaled, allowing one or more waiting threads to proceed.</summary>
/// <returns>true if the operation succeeds; otherwise, false.</returns>
/// <exception cref="T:System.ObjectDisposedException">The <see cref="M:System.Threading.EventWaitHandle.Close" /> method was previously called on this <see cref="T:System.Threading.EventWaitHandle" />.</exception>
/// <filterpriority>2</filterpriority>
public bool Set()
{
base.CheckDisposed();
return(NativeEventCalls.SetEvent_internal(this.Handle));
}
public unsafe EventWaitHandle(bool initialState, EventResetMode mode, string name, out bool createdNew, EventWaitHandleSecurity eventSecurity)
{
if (null != name && System.IO.Path.MAX_PATH < name.Length)
{
throw new ArgumentException(Environment.GetResourceString("Argument_WaitHandleNameTooLong", name));
}
Contract.EndContractBlock();
#if !MONO
Win32Native.SECURITY_ATTRIBUTES secAttrs = null;
#if FEATURE_MACL
// For ACL's, get the security descriptor from the EventWaitHandleSecurity.
if (eventSecurity != null)
{
secAttrs = new Win32Native.SECURITY_ATTRIBUTES();
secAttrs.nLength = (int)Marshal.SizeOf(secAttrs);
byte[] sd = eventSecurity.GetSecurityDescriptorBinaryForm();
byte * pSecDescriptor = stackalloc byte[sd.Length];
Buffer.Memcpy(pSecDescriptor, 0, sd, 0, sd.Length);
secAttrs.pSecurityDescriptor = pSecDescriptor;
}
#endif
#endif
SafeWaitHandle _handle = null;
Boolean isManualReset;
switch (mode)
{
case EventResetMode.ManualReset:
isManualReset = true;
break;
case EventResetMode.AutoReset:
isManualReset = false;
break;
default:
throw new ArgumentException(Environment.GetResourceString("Argument_InvalidFlag", name));
}
;
#if MONO
int errorCode;
_handle = new SafeWaitHandle(NativeEventCalls.CreateEvent_internal(isManualReset, initialState, name, out errorCode), true);
#else
_handle = Win32Native.CreateEvent(secAttrs, isManualReset, initialState, name);
int errorCode = Marshal.GetLastWin32Error();
#endif
if (_handle.IsInvalid)
{
_handle.SetHandleAsInvalid();
if (null != name && 0 != name.Length && Win32Native.ERROR_INVALID_HANDLE == errorCode)
{
throw new WaitHandleCannotBeOpenedException(Environment.GetResourceString("Threading.WaitHandleCannotBeOpenedException_InvalidHandle", name));
}
__Error.WinIOError(errorCode, name);
}
createdNew = errorCode != Win32Native.ERROR_ALREADY_EXISTS;
SetHandleInternal(_handle);
}
public ManualResetEvent(bool initialState)
{
bool created;
Handle = NativeEventCalls.CreateEvent_internal(true, initialState, null, out created);
}
public bool Reset()
{
CheckDisposed();
return(NativeEventCalls.ResetEvent_internal(Handle));
}
public EventWaitHandle(bool initialState, EventResetMode mode,
string name, out bool createdNew,
EventWaitHandleSecurity eventSecurity)
{
Handle = NativeEventCalls.CreateEvent_internal((mode == EventResetMode.ManualReset), initialState, name, out createdNew);
}
public bool Dispose(WaitHandle notifyObject)
{
Dispose();
NativeEventCalls.SetEvent_internal(notifyObject.Handle);
return(true);
}