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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 19:33:14 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 19:33:14 +0000
commit36d22d82aa202bb199967e9512281e9a53db42c9 (patch)
tree105e8c98ddea1c1e4784a60a5a6410fa416be2de /ipc/mscom/ApartmentRegion.h
parentInitial commit. (diff)
downloadfirefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.tar.xz
firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.zip
Adding upstream version 115.7.0esr.upstream/115.7.0esr
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'ipc/mscom/ApartmentRegion.h')
-rw-r--r--ipc/mscom/ApartmentRegion.h93
1 files changed, 93 insertions, 0 deletions
diff --git a/ipc/mscom/ApartmentRegion.h b/ipc/mscom/ApartmentRegion.h
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+/* -*- 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/. */
+
+#ifndef mozilla_mscom_ApartmentRegion_h
+#define mozilla_mscom_ApartmentRegion_h
+
+#include "mozilla/Assertions.h"
+#include "mozilla/Attributes.h"
+#include "mozilla/mscom/COMWrappers.h"
+
+namespace mozilla {
+namespace mscom {
+
+class MOZ_NON_TEMPORARY_CLASS ApartmentRegion final {
+ public:
+ /**
+ * This constructor is to be used when we want to instantiate the object but
+ * we do not yet know which type of apartment we want. Call Init() to
+ * complete initialization.
+ */
+ constexpr ApartmentRegion() : mInitResult(CO_E_NOTINITIALIZED) {}
+
+ explicit ApartmentRegion(COINIT aAptType)
+ : mInitResult(wrapped::CoInitializeEx(nullptr, aAptType)) {
+ // If this fires then we're probably mixing apartments on the same thread
+ MOZ_ASSERT(IsValid());
+ }
+
+ ~ApartmentRegion() {
+ if (IsValid()) {
+ wrapped::CoUninitialize();
+ }
+ }
+
+ explicit operator bool() const { return IsValid(); }
+
+ bool IsValidOutermost() const { return mInitResult == S_OK; }
+
+ bool IsValid() const { return SUCCEEDED(mInitResult); }
+
+ bool Init(COINIT aAptType) {
+ MOZ_ASSERT(mInitResult == CO_E_NOTINITIALIZED);
+ mInitResult = wrapped::CoInitializeEx(nullptr, aAptType);
+ MOZ_ASSERT(IsValid());
+ return IsValid();
+ }
+
+ HRESULT
+ GetHResult() const { return mInitResult; }
+
+ private:
+ ApartmentRegion(const ApartmentRegion&) = delete;
+ ApartmentRegion& operator=(const ApartmentRegion&) = delete;
+ ApartmentRegion(ApartmentRegion&&) = delete;
+ ApartmentRegion& operator=(ApartmentRegion&&) = delete;
+
+ HRESULT mInitResult;
+};
+
+template <COINIT T>
+class MOZ_NON_TEMPORARY_CLASS ApartmentRegionT final {
+ public:
+ ApartmentRegionT() : mAptRgn(T) {}
+
+ ~ApartmentRegionT() = default;
+
+ explicit operator bool() const { return mAptRgn.IsValid(); }
+
+ bool IsValidOutermost() const { return mAptRgn.IsValidOutermost(); }
+
+ bool IsValid() const { return mAptRgn.IsValid(); }
+
+ HRESULT GetHResult() const { return mAptRgn.GetHResult(); }
+
+ private:
+ ApartmentRegionT(const ApartmentRegionT&) = delete;
+ ApartmentRegionT& operator=(const ApartmentRegionT&) = delete;
+ ApartmentRegionT(ApartmentRegionT&&) = delete;
+ ApartmentRegionT& operator=(ApartmentRegionT&&) = delete;
+
+ ApartmentRegion mAptRgn;
+};
+
+typedef ApartmentRegionT<COINIT_APARTMENTTHREADED> STARegion;
+typedef ApartmentRegionT<COINIT_MULTITHREADED> MTARegion;
+
+} // namespace mscom
+} // namespace mozilla
+
+#endif // mozilla_mscom_ApartmentRegion_h