PeerDistServerCancelAsyncOperation function (peerdist.h)
The PeerDistServerCancelAsyncOperation function cancels the asynchronous operation associated with the content identifier and OVERLAPPED structure.
DWORD PeerDistServerCancelAsyncOperation( PEERDIST_INSTANCE_HANDLE hPeerDist, DWORD cbContentIdentifier, PBYTE pContentIdentifier, LPOVERLAPPED pOverlapped );
A PEERDIST_INSTANCE_HANDLE returned by PeerDistStartup.
The length, in bytes, of the content identifier.
Pointer to an array that contains the content identifier.
Pointer to an OVERLAPPED structure that contains the canceling asynchronous operation data.
The function will return ERROR_SUCCESS value if the operation associated with OVERLAPPED structure is successfully canceled. Otherwise, the function may return one of the following values:
||One or more parameters are invalid.|
||The hPeerDist handle is invalid.|
||The operation for OVERLAPPED structure cannot be found.|
||The feature is disabled by Group Policy.|
||The service is unavailable.|
This function will synchronously cancel the operation, but will not return until the cancelation result is posted to the completion port or wait event is set to the 'signaled' state. Any threads in waiting can receive the completion notice for the operation before or after the PeerDistServerCancelAsyncOperation function returns.
This function does not guarantee that the operation will complete as canceled. The cancellation result will be posted only if no other results have been posted.
To confirm successfully canceled operations, a call should be made to GetOverlappedResult with an expected return of FALSE.
Additionally, calling GetLastError immediately after a successful PeerDistServerCancelAsyncOperation will return the ERROR_OPERATION_ABORTED error code.
|Minimum supported client||Windows 7 Professional [desktop apps only]|
|Minimum supported server||Windows Server 2008 R2 [desktop apps only]|