ICLRIoCompletionManager::OnComplete Method

Artikkeli
09/15/2021

Notifies the common language runtime (CLR) of the status of an I/O request that was made by using a call to the IHostIoCompletionManager::Bind method.

Syntax

HRESULT OnComplete (  
    [in] DWORD dwErrorCode,  
    [in] DWORD NumberOfBytesTransferred,  
    [in] void* pvOverlapped  
);

Parameters

dwErrorCode
[in] An HRESULT value that indicates the status of the bind operation.

S_OK indicates that the operation completed successfully.
HOST_E_INTERRUPTED indicates that the call terminated before completion.
E_FAIL indicates that an unknown, unrecoverable, catastrophic failure occurred.

NumberOfBytesTransferred
[in] The number of bytes transferred during the processing of the I/O request.

pvOverlapped
[in] A pointer to the OVERLAPPED structure that was passed to the call to the IHostIoCompletionManager::Bind method.

Return Value

HRESULT	Description
S_OK	`OnComplete` returned successfully.
HOST_E_CLRNOTAVAILABLE	The CLR has not been loaded into a process, or the CLR is in a state in which it cannot run managed code or process the call successfully.
HOST_E_TIMEOUT	The call timed out.
HOST_E_NOT_OWNER	The caller does not own the lock.
HOST_E_ABANDONED	An event was canceled while a blocked thread or fiber was waiting on it.
E_FAIL	An unknown catastrophic failure occurred. After a method returns E_FAIL, the CLR is no longer usable within the process. Subsequent calls to hosting methods return HOST_E_CLRNOTAVAILABLE.

Remarks

If the host implements an I/O completion abstraction, the CLR makes I/O requests through the host by using methods of IHostIoCompletionManager. The host then calls the OnComplete method to notify the runtime of the outcome of such requests.

Requirements

Platforms: See System Requirements.

Header: MSCorEE.h

Library: Included as a resource in MSCorEE.dll

.NET Framework Versions: Available since 2.0

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