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IHostIoCompletionManager::GetMaxThreads Method

  • Article

Gets the maximum number of threads that the host can allot to service I/O requests.

HRESULT GetMaxThreads (
    [out] DWORD *pdwMaxIoCompletionThreads
);

Parameters

  • pdwMaxIoCompletionThreads
    [out] A pointer to the maximum number of threads in the thread pool that the host can allot to service I/O requests.

Return Value

HRESULT Description

S_OK

GetMaxThreads returned successfully.

HOST_E_CLRNOTAVAILABLE

The common language runtime (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. When a method returns E_FAIL, the CLR is no longer usable within the process. Subsequent calls to hosting methods return HOST_E_CLRNOTAVAILABLE.

E_NOTIMPL

The host does not provide an implementation of GetMaxThreads.

Remarks

A host might want exclusive control over the number of threads that can be allotted to process I/O requests, for reasons such as implementation, performance, or scalability. For this reason, the host is not required to implement GetMaxThreads. In this case, the host should return E_NOTIMPL from this method.

Requirements

Platforms: Windows 2000, Windows XP, Windows Server 2003 family

Header: MSCorEE.idl

Library: Included as a resource in MSCorEE.dll

.NET Framework Version: 2.0

See Also

Reference

ICLRIoCompletionManager Interface
IHostIoCompletionManager Interface