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Notifies the common language runtime (CLR) that the task that the current ICLRTask 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 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 .NET Framework System Requirements.
Header: MSCorEE.h
Library: Included as a resource in MSCorEE.dll
.NET Framework Versions: 4, 3.5 SP1, 3.5, 3.0 SP1, 3.0, 2.0 SP1, 2.0