public static bool Wait(IntPtr handle, int timeoutMilliseconds)
{
Debug.Assert(timeoutMilliseconds >= -1);
ThreadWaitInfo waitInfo = RuntimeThread.CurrentThread.WaitInfo;
if (waitInfo.CheckAndResetPendingInterrupt)
{
throw new ThreadInterruptedException();
}
return(HandleManager.FromHandle(handle).Wait(waitInfo, timeoutMilliseconds));
}
public static int SignalAndWait(
IntPtr handleToSignal,
IntPtr handleToWaitOn,
int timeoutMilliseconds)
{
Debug.Assert(timeoutMilliseconds >= -1);
return
(SignalAndWait(
HandleManager.FromHandle(handleToSignal),
HandleManager.FromHandle(handleToWaitOn),
timeoutMilliseconds));
}
public static void ReleaseMutex(IntPtr handle)
{
WaitableObject waitableObject = HandleManager.FromHandle(handle);
s_lock.Acquire();
try
{
waitableObject.SignalMutex();
}
finally
{
s_lock.Release();
}
}
public static void ResetEvent(IntPtr handle)
{
WaitableObject waitableObject = HandleManager.FromHandle(handle);
s_lock.Acquire();
try
{
waitableObject.UnsignalEvent();
}
finally
{
s_lock.Release();
}
}
public static int ReleaseSemaphore(IntPtr handle, int count)
{
Debug.Assert(count > 0);
WaitableObject waitableObject = HandleManager.FromHandle(handle);
s_lock.Acquire();
try
{
return(waitableObject.SignalSemaphore(count));
}
finally
{
s_lock.Release();
}
}
public static bool SignalAndWait(IntPtr handleToSignal, IntPtr handleToWaitOn, int timeoutMilliseconds)
{
Debug.Assert(timeoutMilliseconds >= -1);
ThreadWaitInfo waitInfo = RuntimeThread.CurrentThread.WaitInfo;
// A pending interrupt does not signal the specified handle
if (waitInfo.CheckAndResetPendingInterrupt)
{
throw new ThreadInterruptedException();
}
WaitableObject waitableObjectToSignal = HandleManager.FromHandle(handleToSignal);
WaitableObject waitableObjectToWaitOn = HandleManager.FromHandle(handleToWaitOn);
bool waitCalled = false;
s_lock.Acquire();
try
{
waitableObjectToSignal.Signal(1);
waitCalled = true;
return(waitableObjectToWaitOn.Wait_Locked(waitInfo, timeoutMilliseconds));
}
finally
{
// Once the wait function is called, it will release the lock
if (waitCalled)
{
s_lock.VerifyIsNotLocked();
}
else
{
s_lock.Release();
}
}
}
public static int Wait(
Span <IntPtr> waitHandles,
bool waitForAll,
int timeoutMilliseconds)
{
Debug.Assert(waitHandles != null);
Debug.Assert(waitHandles.Length > 0);
Debug.Assert(waitHandles.Length <= WaitHandle.MaxWaitHandles);
Debug.Assert(timeoutMilliseconds >= -1);
ThreadWaitInfo waitInfo = Thread.CurrentThread.WaitInfo;
WaitableObject?[] waitableObjects = waitInfo.GetWaitedObjectArray(waitHandles.Length);
bool success = false;
try
{
for (int i = 0; i < waitHandles.Length; ++i)
{
Debug.Assert(waitHandles[i] != IntPtr.Zero);
WaitableObject waitableObject = HandleManager.FromHandle(waitHandles[i]);
if (waitForAll)
{
// Check if this is a duplicate, as wait-for-all does not support duplicates. Including the parent
// loop, this becomes a brute force O(n^2) search, which is intended since the typical array length is
// short enough that this would actually be faster than other alternatives. Also, the worst case is not
// so bad considering that the array length is limited by <see cref="WaitHandle.MaxWaitHandles"/>.
for (int j = 0; j < i; ++j)
{
if (waitableObject == waitableObjects[j])
{
throw new DuplicateWaitObjectException("waitHandles[" + i + ']');
}
}
}
waitableObjects[i] = waitableObject;
}
success = true;
}
finally
{
if (!success)
{
for (int i = 0; i < waitHandles.Length; ++i)
{
waitableObjects[i] = null;
}
}
}
if (waitHandles.Length == 1)
{
WaitableObject waitableObject = waitableObjects[0] !;
waitableObjects[0] = null;
return
(waitableObject.Wait(waitInfo, timeoutMilliseconds, interruptible: true, prioritize: false));
}
return
(WaitableObject.Wait(
waitableObjects,
waitHandles.Length,
waitForAll,
waitInfo,
timeoutMilliseconds,
interruptible: true,
prioritize: false));
}
public static int Wait(IntPtr handle, int timeoutMilliseconds, bool interruptible)
{
Debug.Assert(timeoutMilliseconds >= -1);
return(Wait(HandleManager.FromHandle(handle), timeoutMilliseconds, interruptible));
}
public static void ReleaseMutex(IntPtr handle)
{
ReleaseMutex(HandleManager.FromHandle(handle));
}
public static int ReleaseSemaphore(IntPtr handle, int count)
{
Debug.Assert(count > 0);
return(ReleaseSemaphore(HandleManager.FromHandle(handle), count));
}
public static void ResetEvent(IntPtr handle)
{
ResetEvent(HandleManager.FromHandle(handle));
}
public static int Wait(
RuntimeThread currentThread,
SafeWaitHandle[] safeWaitHandles,
WaitHandle[] waitHandles,
bool waitForAll,
int timeoutMilliseconds)
{
Debug.Assert(currentThread == RuntimeThread.CurrentThread);
Debug.Assert(safeWaitHandles != null);
Debug.Assert(safeWaitHandles.Length >= waitHandles.Length);
Debug.Assert(waitHandles.Length > 0);
Debug.Assert(waitHandles.Length <= WaitHandle.MaxWaitHandles);
Debug.Assert(timeoutMilliseconds >= -1);
ThreadWaitInfo waitInfo = currentThread.WaitInfo;
if (waitInfo.CheckAndResetPendingInterrupt)
{
throw new ThreadInterruptedException();
}
int count = waitHandles.Length;
WaitableObject[] waitableObjects = waitInfo.GetWaitedObjectArray(count);
bool success = false;
try
{
for (int i = 0; i < count; ++i)
{
Debug.Assert(safeWaitHandles[i] != null);
WaitableObject waitableObject = HandleManager.FromHandle(safeWaitHandles[i].DangerousGetHandle());
if (waitForAll)
{
/// Check if this is a duplicate, as wait-for-all does not support duplicates. Including the parent
/// loop, this becomes a brute force O(n^2) search, which is intended since the typical array length is
/// short enough that this would actually be faster than other alternatives. Also, the worst case is not
/// so bad considering that the array length is limited by <see cref="WaitHandle.MaxWaitHandles"/>.
for (int j = 0; j < i; ++j)
{
if (waitableObject == waitableObjects[j])
{
throw new DuplicateWaitObjectException("waitHandles[" + i + ']');
}
}
}
waitableObjects[i] = waitableObject;
}
success = true;
}
finally
{
if (!success)
{
for (int i = 0; i < count; ++i)
{
waitableObjects[i] = null;
}
}
}
if (count == 1)
{
WaitableObject waitableObject = waitableObjects[0];
waitableObjects[0] = null;
return(waitableObject.Wait(waitInfo, timeoutMilliseconds) ? 0 : WaitHandle.WaitTimeout);
}
return
(WaitableObject.Wait(
waitableObjects,
count,
waitForAll,
waitInfo,
timeoutMilliseconds,
waitHandles));
}
public static bool Wait(IntPtr handle, int timeoutMilliseconds)
{
Debug.Assert(timeoutMilliseconds >= -1);
return(Wait(HandleManager.FromHandle(handle), timeoutMilliseconds));
}