1 files changed, 72 insertions, 0 deletions
diff --git a/dom/cache/DBAction.h b/dom/cache/DBAction.h
new file mode 100644
index 0000000000..27b1c489cc
--- /dev/null
+++ b/dom/cache/DBAction.h
@@ -0,0 +1,72 @@
+/* -*- 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_dom_cache_DBAction_h
+#define mozilla_dom_cache_DBAction_h
+
+#include "mozilla/dom/cache/Action.h"
+#include "mozilla/RefPtr.h"
+#include "nsString.h"
+
+class mozIStorageConnection;
+class nsIFile;
+
+namespace mozilla::dom::cache {
+
+Result<nsCOMPtr<mozIStorageConnection>, nsresult> OpenDBConnection(
+    const CacheDirectoryMetadata& aDirectoryMetadata, nsIFile& aDBFile);
+
+class DBAction : public Action {
+ protected:
+  // The mode specifies whether the database should already exist or if its
+  // ok to create a new database.
+  enum Mode { Existing, Create };
+
+  explicit DBAction(Mode aMode);
+
+  // Action objects are deleted through their base pointer
+  virtual ~DBAction();
+
+  // Just as the resolver must be ref'd until resolve, you may also
+  // ref the DB connection.  The connection can only be referenced from the
+  // target thread and must be released upon resolve.
+  virtual void RunWithDBOnTarget(
+      SafeRefPtr<Resolver> aResolver,
+      const CacheDirectoryMetadata& aDirectoryMetadata, nsIFile* aDBDir,
+      mozIStorageConnection* aConn) = 0;
+
+ private:
+  void RunOnTarget(SafeRefPtr<Resolver> aResolver,
+                   const Maybe<CacheDirectoryMetadata>& aDirectoryMetadata,
+                   Data* aOptionalData) override;
+
+  Result<nsCOMPtr<mozIStorageConnection>, nsresult> OpenConnection(
+      const CacheDirectoryMetadata& aDirectoryMetadata, nsIFile& aDBDir);
+
+  const Mode mMode;
+};
+
+class SyncDBAction : public DBAction {
+ protected:
+  explicit SyncDBAction(Mode aMode);
+
+  // Action objects are deleted through their base pointer
+  virtual ~SyncDBAction();
+
+  virtual nsresult RunSyncWithDBOnTarget(
+      const CacheDirectoryMetadata& aDirectoryMetadata, nsIFile* aDBDir,
+      mozIStorageConnection* aConn) = 0;
+
+ private:
+  virtual void RunWithDBOnTarget(
+      SafeRefPtr<Resolver> aResolver,
+      const CacheDirectoryMetadata& aDirectoryMetadata, nsIFile* aDBDir,
+      mozIStorageConnection* aConn) override;
+};
+
+}  // namespace mozilla::dom::cache
+
+#endif  // mozilla_dom_cache_DBAction_h