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authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
commit5f8de423f190bbb79a62f804151bc24824fa32d8 (patch)
tree10027f336435511475e392454359edea8e25895d /dom/indexedDB/FileInfo.h
parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
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Add m-esr52 at 52.6.0
Diffstat (limited to 'dom/indexedDB/FileInfo.h')
-rw-r--r--dom/indexedDB/FileInfo.h103
1 files changed, 103 insertions, 0 deletions
diff --git a/dom/indexedDB/FileInfo.h b/dom/indexedDB/FileInfo.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_dom_indexeddb_fileinfo_h__
+#define mozilla_dom_indexeddb_fileinfo_h__
+
+#include "nsISupportsImpl.h"
+
+namespace mozilla {
+namespace dom {
+namespace indexedDB {
+
+class FileManager;
+
+class FileInfo
+{
+ friend class FileManager;
+
+ ThreadSafeAutoRefCnt mRefCnt;
+ ThreadSafeAutoRefCnt mDBRefCnt;
+ ThreadSafeAutoRefCnt mSliceRefCnt;
+
+ RefPtr<FileManager> mFileManager;
+
+public:
+ class CustomCleanupCallback;
+
+ static
+ FileInfo* Create(FileManager* aFileManager, int64_t aId);
+
+ explicit FileInfo(FileManager* aFileManager);
+
+ void
+ AddRef()
+ {
+ UpdateReferences(mRefCnt, 1);
+ }
+
+ void
+ Release(CustomCleanupCallback* aCustomCleanupCallback = nullptr)
+ {
+ UpdateReferences(mRefCnt, -1, aCustomCleanupCallback);
+ }
+
+ void
+ UpdateDBRefs(int32_t aDelta)
+ {
+ UpdateReferences(mDBRefCnt, aDelta);
+ }
+
+ void
+ UpdateSliceRefs(int32_t aDelta)
+ {
+ UpdateReferences(mSliceRefCnt, aDelta);
+ }
+
+ void
+ GetReferences(int32_t* aRefCnt, int32_t* aDBRefCnt, int32_t* aSliceRefCnt);
+
+ FileManager*
+ Manager() const
+ {
+ return mFileManager;
+ }
+
+ virtual int64_t
+ Id() const = 0;
+
+protected:
+ virtual ~FileInfo();
+
+private:
+ void
+ UpdateReferences(ThreadSafeAutoRefCnt& aRefCount,
+ int32_t aDelta,
+ CustomCleanupCallback* aCustomCleanupCallback = nullptr);
+
+ bool
+ LockedClearDBRefs();
+
+ void
+ Cleanup();
+};
+
+class NS_NO_VTABLE FileInfo::CustomCleanupCallback
+{
+public:
+ virtual nsresult
+ Cleanup(FileManager* aFileManager, int64_t aId) = 0;
+
+protected:
+ CustomCleanupCallback()
+ { }
+};
+
+} // namespace indexedDB
+} // namespace dom
+} // namespace mozilla
+
+#endif // mozilla_dom_indexeddb_fileinfo_h__