summaryrefslogtreecommitdiffstats
path: root/dom/serviceworkers/ServiceWorkerCloneData.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'dom/serviceworkers/ServiceWorkerCloneData.cpp')
-rw-r--r--dom/serviceworkers/ServiceWorkerCloneData.cpp80
1 files changed, 80 insertions, 0 deletions
diff --git a/dom/serviceworkers/ServiceWorkerCloneData.cpp b/dom/serviceworkers/ServiceWorkerCloneData.cpp
new file mode 100644
index 0000000000..b74d45386a
--- /dev/null
+++ b/dom/serviceworkers/ServiceWorkerCloneData.cpp
@@ -0,0 +1,80 @@
+/* -*- 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 "ServiceWorkerCloneData.h"
+
+#include <utility>
+#include "mozilla/RefPtr.h"
+#include "mozilla/dom/DOMTypes.h"
+#include "mozilla/dom/StructuredCloneHolder.h"
+#include "nsISerialEventTarget.h"
+#include "nsProxyRelease.h"
+#include "nsThreadUtils.h"
+
+namespace mozilla::dom {
+
+ServiceWorkerCloneData::~ServiceWorkerCloneData() {
+ RefPtr<ipc::SharedJSAllocatedData> sharedData = TakeSharedData();
+ if (sharedData) {
+ NS_ProxyRelease(__func__, mEventTarget, sharedData.forget());
+ }
+}
+
+ServiceWorkerCloneData::ServiceWorkerCloneData()
+ : ipc::StructuredCloneData(
+ StructuredCloneHolder::StructuredCloneScope::UnknownDestination,
+ StructuredCloneHolder::TransferringSupported),
+ mEventTarget(GetCurrentSerialEventTarget()),
+ mIsErrorMessageData(false) {
+ MOZ_DIAGNOSTIC_ASSERT(mEventTarget);
+}
+
+bool ServiceWorkerCloneData::BuildClonedMessageData(
+ ClonedOrErrorMessageData& aClonedData) {
+ if (IsErrorMessageData()) {
+ aClonedData = ErrorMessageData();
+ return true;
+ }
+
+ MOZ_DIAGNOSTIC_ASSERT(
+ CloneScope() ==
+ StructuredCloneHolder::StructuredCloneScope::DifferentProcess);
+
+ ClonedMessageData messageData;
+ if (!StructuredCloneData::BuildClonedMessageData(messageData)) {
+ return false;
+ }
+
+ aClonedData = std::move(messageData);
+
+ return true;
+}
+
+void ServiceWorkerCloneData::CopyFromClonedMessageData(
+ const ClonedOrErrorMessageData& aClonedData) {
+ if (aClonedData.type() == ClonedOrErrorMessageData::TErrorMessageData) {
+ mIsErrorMessageData = true;
+ return;
+ }
+
+ MOZ_DIAGNOSTIC_ASSERT(aClonedData.type() ==
+ ClonedOrErrorMessageData::TClonedMessageData);
+
+ StructuredCloneData::CopyFromClonedMessageData(aClonedData);
+}
+
+void ServiceWorkerCloneData::SetAsErrorMessageData() {
+ MOZ_ASSERT(CloneScope() ==
+ StructuredCloneHolder::StructuredCloneScope::SameProcess);
+
+ mIsErrorMessageData = true;
+}
+
+bool ServiceWorkerCloneData::IsErrorMessageData() const {
+ return mIsErrorMessageData;
+}
+
+} // namespace mozilla::dom