135 lines
3.6 KiB
C++
135 lines
3.6 KiB
C++
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// --------------------------------------------------------------------------
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// Module Name: ContextActivation.cpp
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//
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// Copyright (c) 2000, Microsoft Corporation
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//
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// Class to implement creating, destroy and scoping a fusion activation
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// context.
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//
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// History: 2000-10-09 vtan created
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// 2000-11-04 vtan copied from winlogon
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// --------------------------------------------------------------------------
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#ifdef _X86_
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#include "StandardHeader.h"
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#include "ContextActivation.h"
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// --------------------------------------------------------------------------
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// CContextActivation::s_hActCtx
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//
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// Purpose: The global activation context for this process.
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//
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// History: 2000-10-09 vtan created
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// --------------------------------------------------------------------------
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HANDLE CContextActivation::s_hActCtx = INVALID_HANDLE_VALUE;
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// --------------------------------------------------------------------------
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// CContextActivation::CContextActivation
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//
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// Arguments: <none>
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//
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// Returns: <none>
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//
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// Purpose: Activate the global activation context for this process.
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//
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// History: 2000-10-09 vtan created
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// --------------------------------------------------------------------------
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CContextActivation::CContextActivation (void)
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{
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(BOOL)ActivateActCtx(s_hActCtx, &ulCookie);
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}
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// --------------------------------------------------------------------------
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// CContextActivation::~CContextActivation
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//
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// Arguments: <none>
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//
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// Returns: <none>
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//
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// Purpose: Deactivates the global activation context for this process.
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//
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// History: 2000-10-09 vtan created
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// --------------------------------------------------------------------------
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CContextActivation::~CContextActivation (void)
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{
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(BOOL)DeactivateActCtx(0, ulCookie);
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}
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// --------------------------------------------------------------------------
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// CContextActivation::Create
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//
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// Arguments: pszPath = Path to the manifest.
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//
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// Returns: <none>
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//
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// Purpose: Creates an activation context for this process from a given
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// manifest. If the creation fails use NULL.
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//
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// History: 2000-10-09 vtan created
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// --------------------------------------------------------------------------
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void CContextActivation::Create (const TCHAR *pszPath)
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{
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ACTCTX actCtx;
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ZeroMemory(&actCtx, sizeof(actCtx));
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actCtx.cbSize = sizeof(actCtx);
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actCtx.lpSource = pszPath;
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s_hActCtx = CreateActCtx(&actCtx);
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if (INVALID_HANDLE_VALUE == s_hActCtx)
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{
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s_hActCtx = NULL;
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}
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}
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// --------------------------------------------------------------------------
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// CContextActivation::Destroy
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//
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// Arguments: <none>
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//
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// Returns: <none>
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//
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// Purpose: Destroy an activation context created in
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// CContextActivation::Create.
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//
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// History: 2000-10-09 vtan created
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// --------------------------------------------------------------------------
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void CContextActivation::Destroy (void)
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{
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if (s_hActCtx != NULL)
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{
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ReleaseActCtx(s_hActCtx);
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s_hActCtx = INVALID_HANDLE_VALUE;
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}
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}
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// --------------------------------------------------------------------------
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// CContextActivation::HasContext
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//
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// Arguments: <none>
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//
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// Returns: bool
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//
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// Purpose: Returns whether a fusion activation context is available.
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//
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// History: 2000-11-04 vtan created
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// --------------------------------------------------------------------------
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bool CContextActivation::HasContext (void)
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{
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return(s_hActCtx != NULL);
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}
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#endif /* _X86_ */
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