Skip to content
Find file
137 lines (119 sloc) 4.57 KB
//
// System.Threading.WaitHandle.cs
//
// Author:
// Dick Porter (dick@ximian.com)
// Gonzalo Paniagua Javier (gonzalo@ximian.com
//
// (C) 2002,2003 Ximian, Inc. (http://www.ximian.com)
// Copyright (C) 2004-2005 Novell, Inc (http://www.novell.com)
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
using System;
using System.Reflection;
using System.Runtime.CompilerServices;
using System.Runtime.Remoting.Contexts;
using System.Security.Permissions;
using System.Runtime.InteropServices;
using Microsoft.Win32.SafeHandles;
using System.Runtime.ConstrainedExecution;
namespace System.Threading
{
[StructLayout (LayoutKind.Sequential)]
public abstract partial class WaitHandle
: MarshalByRefObject, IDisposable
{
protected static readonly IntPtr InvalidHandle = (IntPtr) (-1);
static int WaitMultiple(WaitHandle[] waitHandles, int millisecondsTimeout, bool exitContext, bool WaitAll)
{
int release_last = -1;
try {
#if !DISABLE_REMOTING
if (exitContext)
SynchronizationAttribute.ExitContext ();
#endif
for (int i = 0; i < waitHandles.Length; ++i) {
try {
} finally {
/* we have to put it in a finally block, to avoid having a ThreadAbortException
* between the return from DangerousAddRef and the assignement to release_last */
bool release = false;
waitHandles [i].SafeWaitHandle.DangerousAddRef (ref release);
release_last = i;
}
}
if (WaitAll)
return WaitAll_internal (waitHandles, millisecondsTimeout);
else
return WaitAny_internal (waitHandles, millisecondsTimeout);
} finally {
for (int i = release_last; i >= 0; --i) {
waitHandles [i].SafeWaitHandle.DangerousRelease ();
}
#if !DISABLE_REMOTING
if (exitContext)
SynchronizationAttribute.EnterContext ();
#endif
}
}
[MethodImplAttribute(MethodImplOptions.InternalCall)]
private static extern int WaitAll_internal(WaitHandle[] handles, int ms);
[MethodImplAttribute(MethodImplOptions.InternalCall)]
private static extern int WaitAny_internal(WaitHandle[] handles, int ms);
static int WaitOneNative (SafeHandle waitableSafeHandle, uint millisecondsTimeout, bool hasThreadAffinity, bool exitContext)
{
bool release = false;
try {
#if !DISABLE_REMOTING
if (exitContext)
SynchronizationAttribute.ExitContext ();
#endif
waitableSafeHandle.DangerousAddRef (ref release);
return WaitOne_internal (waitableSafeHandle.DangerousGetHandle (), (int) millisecondsTimeout);
} finally {
if (release)
waitableSafeHandle.DangerousRelease ();
#if !DISABLE_REMOTING
if (exitContext)
SynchronizationAttribute.EnterContext ();
#endif
}
}
[MethodImplAttribute(MethodImplOptions.InternalCall)]
static extern int WaitOne_internal(IntPtr handle, int ms);
static int SignalAndWaitOne (SafeWaitHandle waitHandleToSignal,SafeWaitHandle waitHandleToWaitOn, int millisecondsTimeout, bool hasThreadAffinity, bool exitContext)
{
bool releaseHandleToSignal = false, releaseHandleToWaitOn = false;
try {
waitHandleToSignal.DangerousAddRef (ref releaseHandleToSignal);
waitHandleToWaitOn.DangerousAddRef (ref releaseHandleToWaitOn);
return SignalAndWait_Internal (waitHandleToSignal.DangerousGetHandle (), waitHandleToWaitOn.DangerousGetHandle (), millisecondsTimeout);
} finally {
if (releaseHandleToSignal)
waitHandleToSignal.DangerousRelease ();
if (releaseHandleToWaitOn)
waitHandleToWaitOn.DangerousRelease ();
}
}
[MethodImplAttribute(MethodImplOptions.InternalCall)]
static extern int SignalAndWait_Internal (IntPtr toSignal, IntPtr toWaitOn, int ms);
}
}
Something went wrong with that request. Please try again.