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.

Return Value

HRESULT Description
S_OK SetSpinCount 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.


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 System Requirements.

Header: MSCorEE.h

Library: Included as a resource in MSCorEE.dll

.NET Framework Versions: Available since 2.0

See Also

ICLRSyncManager Interface
IHostCrst Interface
IHostSyncManager Interface