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+/* 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 protocol PBackground;
+include protocol PBackgroundSessionStorageManager;
+include PBackgroundSharedTypes;
+
+namespace mozilla {
+namespace dom {
+
+struct SSSetItemInfo
+{
+ nsString key;
+ nsString value;
+};
+
+struct SSRemoveItemInfo
+{
+ nsString key;
+};
+
+struct SSClearInfo
+{
+};
+
+/**
+ * Union of SessionStorage mutation types.
+ */
+union SSWriteInfo
+{
+ SSSetItemInfo;
+ SSRemoveItemInfo;
+ SSClearInfo;
+};
+
+struct SSCacheCopy {
+ nsCString originKey;
+ PrincipalInfo principalInfo;
+ SSSetItemInfo[] data;
+};
+
+[ChildImpl=virtual, ParentImpl=virtual]
+sync protocol PBackgroundSessionStorageCache
+{
+ manager PBackgroundSessionStorageManager;
+
+ parent:
+ async DeleteMe();
+
+ /**
+ * Copy SessionStorageCache from the parent process to the content process.
+ * See SessionStorageManager documentation for more details.
+ *
+ * This needs to be synchronous because SessionStorage's semantics are
+ * synchronous. Note that the BackgroundSessionStorageManager in the
+ * PBackground parent already has the answers to this request immediately
+ * available without needing to consult any other threads or perform any I/O.
+ */
+ sync Load()
+ returns (SSSetItemInfo[] aData);
+
+ /**
+ * Send changes for SessionStorageCache from a content process to the parent
+ * process so that the data in the parent can be updated to be in sync with
+ * the content. See SessionStorageManager documentation for more details.
+ */
+ async Checkpoint(SSWriteInfo[] aWriteInfos);
+
+ child:
+ async __delete__();
+};
+
+} // namespace dom
+} // namespace mozilla