public static int Wait(
RuntimeThread currentThread,
WaitableObject waitableObject0,
WaitableObject waitableObject1,
bool waitForAll,
int timeoutMilliseconds,
bool interruptible = true,
bool prioritize = false)
{
Debug.Assert(currentThread == RuntimeThread.CurrentThread);
Debug.Assert(waitableObject0 != null);
Debug.Assert(waitableObject1 != null);
Debug.Assert(waitableObject1 != waitableObject0);
Debug.Assert(timeoutMilliseconds >= -1);
ThreadWaitInfo waitInfo = currentThread.WaitInfo;
int count = 2;
WaitableObject[] waitableObjects = waitInfo.GetWaitedObjectArray(count);
waitableObjects[0] = waitableObject0;
waitableObjects[1] = waitableObject1;
return
(WaitableObject.Wait(
waitableObjects,
count,
waitForAll,
waitInfo,
timeoutMilliseconds,
interruptible,
prioritize,
waitHandlesForAbandon: null));
}
public static int Wait(
WaitableObject waitableObject,
int timeoutMilliseconds,
bool interruptible = true,
bool prioritize = false)
{
Debug.Assert(waitableObject != null);
Debug.Assert(timeoutMilliseconds >= -1);
return(waitableObject.Wait(Thread.CurrentThread.WaitInfo, timeoutMilliseconds, interruptible, prioritize));
}
public static SafeWaitHandle NewMutex(bool initiallyOwned)
{
WaitableObject waitableObject = WaitableObject.NewMutex();
SafeWaitHandle safeWaitHandle = NewHandle(waitableObject);
if (!initiallyOwned)
{
return(safeWaitHandle);
}
// Acquire the mutex. A thread's <see cref="ThreadWaitInfo"/> has a reference to all <see cref="Mutex"/>es locked
// by the thread. See <see cref="ThreadWaitInfo.LockedMutexesHead"/>. So, acquire the lock only after all
// possibilities for exceptions have been exhausted.
ThreadWaitInfo waitInfo = Thread.CurrentThread.WaitInfo;
bool acquiredLock = waitableObject.Wait(waitInfo, timeoutMilliseconds: 0, interruptible: false, prioritize: false) == 0;
Debug.Assert(acquiredLock);
return(safeWaitHandle);
}
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(
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));
}
