Attempt to abort an in-progress I/O request
Source position: exec.pas line 1179
procedure AbortIO( |
ioRequest: pIORequest |
); |
ioRequest |
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Pointer to an I/O request block (must have been used at least once. May be active or finished). |
Ask a device to abort a previously started IORequest. This is done by calling the device's ABORTIO vector, with your given IORequest.
AbortIO() is a command the device that may or may not grant. If successful, the device will stop processing the IORequest, and reply to it earlier than it would otherwise have done.
NOTE:
AbortIO() does NOT Remove() the IORequest from your ReplyPort, OR wait for it to complete. After an AbortIO() you must wait normally for the reply message before actually reusing the request.
If a request has already completed when AbortIO() is called, no action is taken.
Snippet
AbortIO(timer_request); WaitIO(timer_request); // Message is free to be reused
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Initiate an I/O command |
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Wait for completion of an I/O request |
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Perform an I/O request and wait for its finish |