gecko-dev/ipc/mscom/ActivationContext.cpp

47 строки
1.3 KiB
C++

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "mozilla/mscom/ActivationContext.h"
#include "mozilla/Assertions.h"
#include "mozilla/DebugOnly.h"
namespace mozilla {
namespace mscom {
ActivationContext::ActivationContext(HMODULE aLoadFromModule)
: mActCtx(INVALID_HANDLE_VALUE)
, mActivationCookie(0)
{
ACTCTX actCtx = {sizeof(actCtx)};
actCtx.dwFlags = ACTCTX_FLAG_RESOURCE_NAME_VALID | ACTCTX_FLAG_HMODULE_VALID;
actCtx.lpResourceName = MAKEINTRESOURCE(2);
actCtx.hModule = aLoadFromModule;
mActCtx = ::CreateActCtx(&actCtx);
MOZ_ASSERT(mActCtx != INVALID_HANDLE_VALUE);
if (mActCtx == INVALID_HANDLE_VALUE) {
return;
}
if (!::ActivateActCtx(mActCtx, &mActivationCookie)) {
::ReleaseActCtx(mActCtx);
mActCtx = INVALID_HANDLE_VALUE;
}
}
ActivationContext::~ActivationContext()
{
if (mActCtx == INVALID_HANDLE_VALUE) {
return;
}
DebugOnly<BOOL> deactivated = ::DeactivateActCtx(0, mActivationCookie);
MOZ_ASSERT(deactivated);
::ReleaseActCtx(mActCtx);
}
} // namespace mscom
} // namespace mozilla