mirror of https://github.com/tongzx/nt5src
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
134 lines
3.6 KiB
134 lines
3.6 KiB
// --------------------------------------------------------------------------
|
|
// Module Name: ContextActivation.cpp
|
|
//
|
|
// Copyright (c) 2000, Microsoft Corporation
|
|
//
|
|
// Class to implement creating, destroy and scoping a fusion activation
|
|
// context.
|
|
//
|
|
// History: 2000-10-09 vtan created
|
|
// 2000-11-04 vtan copied from winlogon
|
|
// --------------------------------------------------------------------------
|
|
|
|
#ifdef _X86_
|
|
|
|
#include "StandardHeader.h"
|
|
#include "ContextActivation.h"
|
|
|
|
// --------------------------------------------------------------------------
|
|
// CContextActivation::s_hActCtx
|
|
//
|
|
// Purpose: The global activation context for this process.
|
|
//
|
|
// History: 2000-10-09 vtan created
|
|
// --------------------------------------------------------------------------
|
|
|
|
HANDLE CContextActivation::s_hActCtx = INVALID_HANDLE_VALUE;
|
|
|
|
// --------------------------------------------------------------------------
|
|
// CContextActivation::CContextActivation
|
|
//
|
|
// Arguments: <none>
|
|
//
|
|
// Returns: <none>
|
|
//
|
|
// Purpose: Activate the global activation context for this process.
|
|
//
|
|
// History: 2000-10-09 vtan created
|
|
// --------------------------------------------------------------------------
|
|
|
|
CContextActivation::CContextActivation (void)
|
|
|
|
{
|
|
(BOOL)ActivateActCtx(s_hActCtx, &ulCookie);
|
|
}
|
|
|
|
// --------------------------------------------------------------------------
|
|
// CContextActivation::~CContextActivation
|
|
//
|
|
// Arguments: <none>
|
|
//
|
|
// Returns: <none>
|
|
//
|
|
// Purpose: Deactivates the global activation context for this process.
|
|
//
|
|
// History: 2000-10-09 vtan created
|
|
// --------------------------------------------------------------------------
|
|
|
|
CContextActivation::~CContextActivation (void)
|
|
|
|
{
|
|
(BOOL)DeactivateActCtx(0, ulCookie);
|
|
}
|
|
|
|
// --------------------------------------------------------------------------
|
|
// CContextActivation::Create
|
|
//
|
|
// Arguments: pszPath = Path to the manifest.
|
|
//
|
|
// Returns: <none>
|
|
//
|
|
// Purpose: Creates an activation context for this process from a given
|
|
// manifest. If the creation fails use NULL.
|
|
//
|
|
// History: 2000-10-09 vtan created
|
|
// --------------------------------------------------------------------------
|
|
|
|
void CContextActivation::Create (const TCHAR *pszPath)
|
|
|
|
{
|
|
ACTCTX actCtx;
|
|
|
|
ZeroMemory(&actCtx, sizeof(actCtx));
|
|
actCtx.cbSize = sizeof(actCtx);
|
|
actCtx.lpSource = pszPath;
|
|
s_hActCtx = CreateActCtx(&actCtx);
|
|
if (INVALID_HANDLE_VALUE == s_hActCtx)
|
|
{
|
|
s_hActCtx = NULL;
|
|
}
|
|
}
|
|
|
|
// --------------------------------------------------------------------------
|
|
// CContextActivation::Destroy
|
|
//
|
|
// Arguments: <none>
|
|
//
|
|
// Returns: <none>
|
|
//
|
|
// Purpose: Destroy an activation context created in
|
|
// CContextActivation::Create.
|
|
//
|
|
// History: 2000-10-09 vtan created
|
|
// --------------------------------------------------------------------------
|
|
|
|
void CContextActivation::Destroy (void)
|
|
|
|
{
|
|
if (s_hActCtx != NULL)
|
|
{
|
|
ReleaseActCtx(s_hActCtx);
|
|
s_hActCtx = INVALID_HANDLE_VALUE;
|
|
}
|
|
}
|
|
|
|
// --------------------------------------------------------------------------
|
|
// CContextActivation::HasContext
|
|
//
|
|
// Arguments: <none>
|
|
//
|
|
// Returns: bool
|
|
//
|
|
// Purpose: Returns whether a fusion activation context is available.
|
|
//
|
|
// History: 2000-11-04 vtan created
|
|
// --------------------------------------------------------------------------
|
|
|
|
bool CContextActivation::HasContext (void)
|
|
|
|
{
|
|
return(s_hActCtx != NULL);
|
|
}
|
|
|
|
#endif /* _X86_ */
|
|
|