public void SetEventHandler(Action handler)
{
if (handler == null)
{
dispatch_source_set_event_handler_f(GetCheckedHandle(), IntPtr.Zero);
return;
}
DispatchBlock.Invoke(
delegate {
var sc = SynchronizationContext.Current;
if (sc == null)
{
SynchronizationContext.SetSynchronizationContext(new DispatchQueueSynchronizationContext(queue));
}
try {
handler();
} finally {
if (sc == null)
{
SynchronizationContext.SetSynchronizationContext(null);
}
}
}, block => dispatch_source_set_event_handler(GetCheckedHandle(), block));
}
public void SetCancelHandler(Action handler)
{
if (handler == null)
{
throw new ArgumentNullException("handler");
}
Check();
unsafe {
DispatchBlock.Invoke(
delegate {
var sc = SynchronizationContext.Current;
if (sc == null)
{
SynchronizationContext.SetSynchronizationContext(new DispatchQueueSynchronizationContext(queue));
}
try {
handler();
} finally {
if (sc == null)
{
SynchronizationContext.SetSynchronizationContext(null);
}
}
}, block => dispatch_source_set_cancel_handler(handle, block));
}
}
public static DispatchBlock Create(DispatchBlock block, DispatchBlockFlags flags, DispatchQualityOfService qosClass, int relative_priority)
{
if (block == null)
{
throw new ArgumentNullException(nameof(block));
}
return(block.Create(flags, qosClass, relative_priority));
}
public void DispatchAfter(DispatchTime when, DispatchBlock block)
{
if (block == null)
{
throw new ArgumentNullException(nameof(block));
}
dispatch_after(when.Nanoseconds, GetCheckedHandle(), block.GetCheckedHandle());
}
public void DispatchBarrierSync(DispatchBlock block)
{
if (block == null)
{
throw new ArgumentNullException(nameof(block));
}
dispatch_barrier_sync(GetCheckedHandle(), block.GetCheckedHandle());
}
public void Notify(DispatchQueue queue, Action notification)
{
if (notification == null)
{
throw new ArgumentNullException(nameof(notification));
}
using (var block = new DispatchBlock(notification))
Notify(queue, block);
}
public void Notify(DispatchQueue queue, DispatchBlock block)
{
if (queue == null)
{
throw new ArgumentNullException(nameof(queue));
}
if (block == null)
{
throw new ArgumentNullException(nameof(block));
}
dispatch_group_notify(GetCheckedHandle(), queue.Handle, block.GetCheckedHandle());
}
public void Notify(DispatchQueue queue, DispatchBlock notification)
{
if (queue == null)
{
throw new ArgumentNullException(nameof(queue));
}
if (notification == null)
{
throw new ArgumentNullException(nameof(notification));
}
dispatch_block_notify(GetCheckedHandle(), queue.GetCheckedHandle(), notification.GetCheckedHandle());
}
public void SetRegistrationHandler(Action handler)
{
if (handler == null)
{
throw new ArgumentNullException("handler");
}
DispatchBlock.Invoke(
delegate {
var sc = SynchronizationContext.Current;
if (sc == null)
{
SynchronizationContext.SetSynchronizationContext(new DispatchQueueSynchronizationContext(queue));
}
try {
handler();
} finally {
if (sc == null)
{
SynchronizationContext.SetSynchronizationContext(null);
}
}
}, block => dispatch_source_set_registration_handler(GetCheckedHandle(), block));
}
public DispatchBlock(DispatchBlock dispatchBlock, DispatchBlockFlags flags, DispatchQualityOfService qosClass, int relative_priority)
: base(dispatch_block_create_with_qos_class((nuint)(ulong) flags, qosClass, relative_priority, Runtime.ThrowOnNull(dispatchBlock, nameof(dispatchBlock)).GetCheckedHandle()), true)
{
}
