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IHostSecurityManager::SetSecurityContext Method

  • Artikel

Sets the security context of the currently executing thread.

HRESULT SetSecurityContext (
    [in]  EContextType eContextType,
    [out] IHostSecurityContext** ppSecurityContext
);

Parameters

  • eContextType
    [in] One of the EContextType Enumeration values, indicating what type of context the common language runtime (CLR) is placing on the host.

Return Value

HRESULT Description

S_OK

SetSecurityContext 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.

Remarks

The CLR calls SetSecurityContext in several scenarios. Before it executes class and module constructors and finalizers, the CLR calls SetSecurityContext to protect the host from execution failures. It then resets the security context to its original state after execution of the constructor or finalizer, by using another call to SetSecurityContext. A similar pattern occurs with I/O completion. If the host implements IHostIoCompletionManager Interface, the CLR calls SetSecurityContext after the host calls ICLRIoCompletionManager::OnComplete Method.

At asynchronous points in worker threads, the CLR calls SetSecurityContext within System.Threading.ThreadPool.QueueUserWorkItem(System.Threading.WaitCallback) or within IHostThreadPoolManager::QueueUserWorkItem Method, depending on whether the host or the CLR is implementing the thread pool.

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

EContextType Enumeration
ICLRIoCompletionManager Interface
IHostIoCompletionManager Interface
IHostSecurityContext Interface
IHostSecurityManager Interface
IHostThreadPoolManager Interface
System.Threading.ThreadPool