DispatchSource.SignalMonitor Class
Definition
Important
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Sources of this type monitor signals delivered to the current process.
public class DispatchSource.SignalMonitor : CoreFoundation.DispatchSourcetype DispatchSource.SignalMonitor = class
inherit DispatchSource- Inheritance
Remarks
Unlike signal handlers specified via sigaction(), the execution of the event handler block does not interrupt the current thread of execution; therefore the handler block is not limited to the use of signal safe interfaces defined in sigaction(2). Furthermore, multiple observers of a given signal are supported; thus allowing applications and libraries to cooperate safely. However, a dispatch source does not install a signal handler or otherwise alter the behavior of signal delivery. Therefore, applications must ignore or at least catch any signal that terminates a process by default.
Constructors
| Name | Description |
|---|---|
| DispatchSource.SignalMonitor(Int32, DispatchQueue) |
Creates a process signal monitor |
| DispatchSource.SignalMonitor(IntPtr, Boolean) | |
| DispatchSource.SignalMonitor(IntPtr) | |
Properties
| Name | Description |
|---|---|
| Handle | (Inherited from DisposableObject) |
| IsCanceled |
Determine whether the specified source has been canceled. (Inherited from DispatchSource) |
| Owns | (Inherited from DisposableObject) |
| SignalNumber | |
| SignalsDelivered |
The number of signals received since the last invocation of the event handler. |
Methods
| Name | Description |
|---|---|
| Activate() | (Inherited from DispatchObject) |
| Cancel() |
Asynchronously cancels the dispatch source. (Inherited from DispatchSource) |
| ClearHandle() | (Inherited from DisposableObject) |
| Dispose() | (Inherited from DisposableObject) |
| Dispose(Boolean) |
Releases the resources used by the DispatchSource object. (Inherited from DispatchSource) |
| Equals(Object) | (Inherited from DisposableObject) |
| GetCheckedHandle() | (Inherited from DisposableObject) |
| GetHashCode() | (Inherited from DisposableObject) |
| InitializeHandle(NativeHandle) | (Inherited from DisposableObject) |
| Release() | (Inherited from DispatchObject) |
| Resume() |
Resumes the dispatch source. (Inherited from DispatchSource) |
| Retain() | (Inherited from DispatchObject) |
| SetCancelHandler(Action) |
Provides a cancellation handler (Inherited from DispatchSource) |
| SetEventHandler(Action) |
Specified a handler to execute when events are received on the dispatch source. (Inherited from DispatchSource) |
| SetRegistrationHandler(Action) |
Provides a registration handler (Inherited from DispatchSource) |
| SetTargetQueue(DispatchQueue) | (Inherited from DispatchObject) |
| Suspend() |
Suspends the dispatch source. (Inherited from DispatchSource) |
Extension Methods
| Name | Description |
|---|---|
| GetHandle(INativeObject) | |
| GetNonNullHandle(INativeObject, String) | |