using System.Runtime.Remoting.Contexts;
using System.Security.Permissions;
+#if NET_2_0
+using System.Runtime.InteropServices;
+using Microsoft.Win32.SafeHandles;
+using System.Runtime.ConstrainedExecution;
+#endif
+
namespace System.Threading
{
+#if NET_2_0
+ [ComVisible (true)]
+#endif
public abstract class WaitHandle : MarshalByRefObject, IDisposable
{
[MethodImplAttribute(MethodImplOptions.InternalCall)]
if (length > 64)
throw new NotSupportedException ("Too many handles");
- if (waitAll && length > 1 &&
- (Thread.CurrentThread.ApartmentState == ApartmentState.STA ||
- Assembly.GetEntryAssembly ().EntryPoint.GetCustomAttributes (typeof (STAThreadAttribute), false).Length == 1))
+#if false
+ //
+ // Although we should thrown an exception if this is an STA thread,
+ // Mono does not know anything about STA threads, and just makes
+ // things like Paint.NET not even possible to work.
+ //
+ // See bug #78455 for the bug this is supposed to fix.
+ //
+ if (waitAll && length > 1 && IsSTAThread)
throw new NotSupportedException ("WaitAll for multiple handles is not allowed on an STA thread.");
-
+#endif
foreach (WaitHandle w in handles) {
if (w == null)
throw new ArgumentNullException ("waitHandles", "null handle");
+#if NET_2_0
+ if (w.safe_wait_handle == null)
+ throw new ArgumentException ("null element found", "waitHandle");
+#else
if (w.os_handle == InvalidHandle)
throw new ArgumentException ("null element found", "waitHandle");
+#endif
}
}
-
+#if false
+ // usage of property is commented - see above
+ static bool IsSTAThread {
+ get {
+ bool isSTA = Thread.CurrentThread.ApartmentState ==
+ ApartmentState.STA;
+
+ // FIXME: remove this check after Thread.ApartmentState
+ // has been properly implemented.
+ if (!isSTA) {
+ Assembly asm = Assembly.GetEntryAssembly ();
+ if (asm != null)
+ isSTA = asm.EntryPoint.GetCustomAttributes (typeof (STAThreadAttribute), false).Length > 0;
+ }
+
+ return isSTA;
+ }
+ }
+#endif
public static bool WaitAll(WaitHandle[] waitHandles)
{
CheckArray (waitHandles, true);
private static extern int WaitAny_internal(WaitHandle[] handles, int ms, bool exitContext);
// LAMESPEC: Doesn't specify how to signal failures
+#if NET_2_0
+ [ReliabilityContract (Consistency.WillNotCorruptState, Cer.MayFail)]
+#endif
public static int WaitAny(WaitHandle[] waitHandles)
{
CheckArray (waitHandles, false);
return(WaitAny_internal(waitHandles, Timeout.Infinite, false));
}
+#if NET_2_0
+ [ReliabilityContract (Consistency.WillNotCorruptState, Cer.MayFail)]
+#endif
public static int WaitAny(WaitHandle[] waitHandles,
int millisecondsTimeout,
bool exitContext)
}
}
+#if NET_2_0
+ [ReliabilityContract (Consistency.WillNotCorruptState, Cer.MayFail)]
+ public static int WaitAny(WaitHandle[] waitHandles, TimeSpan timeout)
+ {
+ return WaitAny (waitHandles, timeout, false);
+ }
+
+ [ReliabilityContract (Consistency.WillNotCorruptState, Cer.MayFail)]
+ public static int WaitAny(WaitHandle[] waitHandles, int millisecondsTimeout)
+ {
+ return WaitAny (waitHandles, millisecondsTimeout, false);
+ }
+#endif
+#if NET_2_0
+ [ReliabilityContract (Consistency.WillNotCorruptState, Cer.MayFail)]
+#endif
public static int WaitAny(WaitHandle[] waitHandles,
TimeSpan timeout, bool exitContext)
{
}
}
- [MonoTODO]
- public WaitHandle() {
+#if NET_2_0
+ protected
+#else
+ public
+#endif
+ WaitHandle() {
// FIXME
}
+ public virtual void Close() {
+ Dispose(true);
+ GC.SuppressFinalize (this);
+ }
+
public const int WaitTimeout = 258;
+#if NET_2_0
+ //
+ // In 2.0 we use SafeWaitHandles instead of IntPtrs
+ //
+ SafeWaitHandle safe_wait_handle;
+
+ [Obsolete ("In the profiles > 2.x, use SafeHandle instead of Handle")]
+ public virtual IntPtr Handle {
+ get {
+ return safe_wait_handle.DangerousGetHandle ();
+ }
+
+ [SecurityPermission (SecurityAction.LinkDemand, UnmanagedCode = true)]
+ [SecurityPermission (SecurityAction.InheritanceDemand, UnmanagedCode = true)]
+ set {
+ if (value == InvalidHandle)
+ safe_wait_handle = new SafeWaitHandle (InvalidHandle, false);
+ else
+ safe_wait_handle = new SafeWaitHandle (value, true);
+ }
+ }
+
+ [MethodImplAttribute(MethodImplOptions.InternalCall)]
+ private extern bool WaitOne_internal(IntPtr handle, int ms, bool exitContext);
+
+ protected virtual void Dispose (bool explicitDisposing)
+ {
+ if (!disposed){
+ disposed = true;
+
+ //
+ // This is only the case if the handle was never properly initialized
+ // most likely a bug in the derived class
+ //
+ if (safe_wait_handle == null)
+ return;
+
+ lock (this){
+ if (safe_wait_handle != null)
+ safe_wait_handle.Dispose ();
+ }
+ }
+ }
+
+ public SafeWaitHandle SafeWaitHandle {
+ [ReliabilityContract (Consistency.WillNotCorruptState, Cer.MayFail)]
+ get {
+ return safe_wait_handle;
+ }
+
+ [ReliabilityContract (Consistency.WillNotCorruptState, Cer.Success)]
+ set {
+ if (value == null)
+ safe_wait_handle = new SafeWaitHandle (InvalidHandle, false);
+ else
+ safe_wait_handle = value;
+ }
+ }
+
+ public static bool SignalAndWait (WaitHandle toSignal,
+ WaitHandle toWaitOn)
+ {
+ return SignalAndWait (toSignal, toWaitOn, -1, false);
+ }
+
+ public static bool SignalAndWait (WaitHandle toSignal,
+ WaitHandle toWaitOn,
+ int millisecondsTimeout,
+ bool exitContext)
+ {
+ if (toSignal == null)
+ throw new ArgumentNullException ("toSignal");
+ if (toWaitOn == null)
+ throw new ArgumentNullException ("toWaitOn");
+
+ if (millisecondsTimeout < -1)
+ throw new ArgumentOutOfRangeException ("millisecondsTimeout");
+
+ return SignalAndWait_Internal (toSignal.Handle, toWaitOn.Handle, millisecondsTimeout, exitContext);
+ }
+
+ public static bool SignalAndWait (WaitHandle toSignal,
+ WaitHandle toWaitOn,
+ TimeSpan timeout,
+ bool exitContext)
+ {
+ double ms = timeout.TotalMilliseconds;
+ if (ms > Int32.MaxValue)
+ throw new ArgumentOutOfRangeException ("timeout");
+
+ return SignalAndWait (toSignal, toWaitOn, Convert.ToInt32 (ms), false);
+ }
+
+ [MethodImplAttribute(MethodImplOptions.InternalCall)]
+ static extern bool SignalAndWait_Internal (IntPtr toSignal, IntPtr toWaitOn, int ms, bool exitContext);
+
+ public virtual bool WaitOne()
+ {
+ CheckDisposed ();
+ bool release = false;
+ try {
+ safe_wait_handle.DangerousAddRef (ref release);
+ return (WaitOne_internal(safe_wait_handle.DangerousGetHandle (), Timeout.Infinite, false));
+ } finally {
+ if (release)
+ safe_wait_handle.DangerousRelease ();
+ }
+ }
+
+ public virtual bool WaitOne(int millisecondsTimeout, bool exitContext)
+ {
+ CheckDisposed ();
+ bool release = false;
+ try {
+ if (exitContext)
+ SynchronizationAttribute.ExitContext ();
+ safe_wait_handle.DangerousAddRef (ref release);
+ return (WaitOne_internal(safe_wait_handle.DangerousGetHandle (), millisecondsTimeout, exitContext));
+ } finally {
+ if (exitContext)
+ SynchronizationAttribute.EnterContext ();
+ if (release)
+ safe_wait_handle.DangerousRelease ();
+ }
+ }
+
+ public virtual bool WaitOne (int millisecondsTimeout)
+ {
+ return WaitOne (millisecondsTimeout, false);
+ }
+
+ public virtual bool WaitOne (TimeSpan timeout)
+ {
+ return WaitOne (timeout, false);
+ }
+
+ public virtual bool WaitOne(TimeSpan timeout, bool exitContext)
+ {
+ CheckDisposed ();
+ long ms = (long) timeout.TotalMilliseconds;
+ if (ms < -1 || ms > Int32.MaxValue)
+ throw new ArgumentOutOfRangeException ("timeout");
+
+ bool release = false;
+ try {
+ if (exitContext)
+ SynchronizationAttribute.ExitContext ();
+ safe_wait_handle.DangerousAddRef (ref release);
+ return (WaitOne_internal(safe_wait_handle.DangerousGetHandle (), (int) ms, exitContext));
+ }
+ finally {
+ if (exitContext)
+ SynchronizationAttribute.EnterContext ();
+ if (release)
+ safe_wait_handle.DangerousRelease ();
+ }
+ }
+
+ internal void CheckDisposed ()
+ {
+ if (disposed || safe_wait_handle == null)
+ throw new ObjectDisposedException (GetType ().FullName);
+ }
+
+ public static bool WaitAll(WaitHandle[] waitHandles, int millisecondsTimeout)
+ {
+ CheckArray (waitHandles, true);
+ return WaitAll_internal (waitHandles, millisecondsTimeout, false);
+ }
+
+ public static bool WaitAll(WaitHandle[] waitHandles, TimeSpan timeout)
+ {
+ CheckArray (waitHandles, true);
+ long ms = (long) timeout.TotalMilliseconds;
+
+ if (ms < -1 || ms > Int32.MaxValue)
+ throw new ArgumentOutOfRangeException ("timeout");
+
+ return (WaitAll_internal (waitHandles, (int) ms, false));
+ }
+
+#else
private IntPtr os_handle = InvalidHandle;
public virtual IntPtr Handle {
}
}
- public virtual void Close() {
- Dispose(true);
- GC.SuppressFinalize (this);
- }
-
internal void CheckDisposed ()
{
if (disposed || os_handle == InvalidHandle)
[MethodImplAttribute(MethodImplOptions.InternalCall)]
private extern bool WaitOne_internal(IntPtr handle, int ms, bool exitContext);
+ 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 virtual bool WaitOne()
{
CheckDisposed ();
if (exitContext) SynchronizationAttribute.EnterContext ();
}
}
+#endif
- protected static readonly IntPtr InvalidHandle = IntPtr.Zero;
-
+ protected static readonly IntPtr InvalidHandle = (IntPtr) (-1);
bool disposed = false;
void IDisposable.Dispose() {
GC.SuppressFinalize(this);
}
- 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;
- }
- }
- }
- }
-
~WaitHandle() {
Dispose(false);
}
projects / mono.git / blobdiff