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IHostCrst::SetSpinCount Method

Sets the spin count for the current IHostCrst instance.

HRESULT SetSpinCount (
    [in] DWORD dwSpinCount


[in] The new spin count for the current IHostCrst instance.




SetSpinCount 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.

On multi-processor systems, if the critical section represented by the current IHostCrst instance is unavailable, a calling thread spins dwSpinCount times before calling IHostSemaphore::Wait on a semaphore associated with the critical section. If the critical section becomes free during the spin operation, the calling thread avoids the wait operation.

The usage of dwSpinCount is identical to the usage of the parameter of the same name in the Win32 InitializeCriticalSectionAndSpinCount function.

Platforms: See .NET Framework System Requirements.

Header: MSCorEE.idl

Library: Included as a resource in MSCorEE.dll

.NET Framework Versions: 3.5 SP1, 3.5, 3.0 SP1, 3.0, 2.0 SP1, 2.0