ICLRTask::SwitchIn Method
Notifies the common language runtime (CLR) that the task that the current ICLRTask instance represents is now in an operable state.
Syntax
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 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 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: See System Requirements.
Header: MSCorEE.h
Library: Included as a resource in MSCorEE.dll
.NET Framework Versions: Available since 2.0
