ICLRTask::SwitchIn Method

Notifies the common language runtime (CLR) that the task that the current ICLRTask Interface instance represents is now in an operable state.

HRESULT SwitchIn (
    [in] HANDLE threadHandle
);

Parameters

• threadHandle
  [in] A handle to the physical thread on which the task represented by the current ICLRTask instance is executing.

Return Value

HRESULT	Description
S_OK	SwitchIn 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.
HOST_E_INVALIDOPERATION	SwitchIn was called without an earlier call to ICLRTask::SwitchOut Method.

Remarks

The threadHandle parameter represents a handle to the operating system thread on which the task represented by the current ICLRTask instance has been scheduled. If impersonation has occurred on this thread, you must call IHostSecurityManager::RevertToSelf Method before switching in the task.

Note

A call to SwitchIn without an earlier call to SwitchOut fails with an HRESULT value of HOST_E_INVALIDOPERATION.

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

ICLRTask Interface
ICLRTaskManager Interface
IHostTask Interface
IHostTaskManager Interface