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IHostTaskManager::ReverseEnterRuntime Method

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Notifies the host that a call is being made into the common language runtime (CLR) from unmanaged code.

Syntax

HRESULT ReverseEnterRuntime ();

Return Value

HRESULT Description
S_OK ReverseEnterRuntime 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. 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_OUTOFMEMORY Not enough memory is available to complete the requested resource allocation.

Remarks

If the call into the CLR is made from a sequence that originated in managed code, each call to ReverseEnterRuntime corresponds to a call to ReverseLeaveRuntime.

Note

Calls can originate from unmanaged code without being nested. In this case, there is no call to EnterRuntime, LeaveRuntime, or ReverseLeaveRuntime, and the number of calls to ReverseEnterRuntime does not equal the number of calls to ReverseLeaveRuntime.

Requirements

Platforms: See System Requirements.

Header: MSCorEE.h

Library: Included as a resource in MSCorEE.dll

.NET Framework Versions: Available since 2.0

See also