IHostIoCompletionManager::GetMaxThreads Method

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

HRESULT GetMaxThreads (
    [out] DWORD *pdwMaxIoCompletionThreads


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




GetMaxThreads returned successfully.


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.


The call timed out.


The caller does not own the lock.


An event was canceled while a blocked thread or fiber was waiting on it.


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.


The host does not provide an implementation of GetMaxThreads.

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.

Platforms: See .NET Framework System Requirements.

Header: MSCorEE.h

Library: Included as a resource in MSCorEE.dll

.NET Framework Versions: 4.6 Preview, 4.5.2, 4.5.1, 4.5, 4, 3.5 SP1, 3.5, 3.0 SP1, 3.0, 2.0 SP1, 2.0

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