summaryrefslogtreecommitdiffstats
path: root/dom/filehandle/ActorsParent.h
diff options
context:
space:
mode:
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/filehandle/ActorsParent.h
parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
downloadUXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar
UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar.gz
UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar.lz
UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar.xz
UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.zip
Add m-esr52 at 52.6.0
Diffstat (limited to 'dom/filehandle/ActorsParent.h')
-rw-r--r--dom/filehandle/ActorsParent.h221
1 files changed, 221 insertions, 0 deletions
diff --git a/dom/filehandle/ActorsParent.h b/dom/filehandle/ActorsParent.h
new file mode 100644
index 000000000..5d251715e
--- /dev/null
+++ b/dom/filehandle/ActorsParent.h
@@ -0,0 +1,221 @@
+/* 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_filehandle_ActorsParent_h
+#define mozilla_dom_filehandle_ActorsParent_h
+
+#include "mozilla/dom/FileHandleStorage.h"
+#include "mozilla/dom/PBackgroundMutableFileParent.h"
+#include "mozilla/ipc/BackgroundParent.h"
+#include "nsAutoPtr.h"
+#include "nsClassHashtable.h"
+#include "nsCOMPtr.h"
+#include "nsHashKeys.h"
+#include "nsString.h"
+#include "nsTArrayForwardDeclare.h"
+#include "nsTHashtable.h"
+
+template <class> struct already_AddRefed;
+class nsIFile;
+class nsIRunnable;
+class nsIThreadPool;
+
+namespace mozilla {
+
+namespace ipc {
+
+class PBackgroundParent;
+
+} // namespace ipc
+
+namespace dom {
+
+class BlobImpl;
+class FileHandle;
+class FileHandleOp;
+
+class FileHandleThreadPool final
+{
+ class FileHandleQueue;
+ struct DelayedEnqueueInfo;
+ class DirectoryInfo;
+ struct StoragesCompleteCallback;
+
+ nsCOMPtr<nsIThreadPool> mThreadPool;
+ nsCOMPtr<nsIEventTarget> mOwningThread;
+
+ nsClassHashtable<nsCStringHashKey, DirectoryInfo> mDirectoryInfos;
+
+ nsTArray<nsAutoPtr<StoragesCompleteCallback>> mCompleteCallbacks;
+
+ bool mShutdownRequested;
+ bool mShutdownComplete;
+
+public:
+ static already_AddRefed<FileHandleThreadPool>
+ Create();
+
+#ifdef DEBUG
+ void
+ AssertIsOnOwningThread() const;
+
+ nsIEventTarget*
+ GetThreadPoolEventTarget() const;
+#else
+ void
+ AssertIsOnOwningThread() const
+ { }
+#endif
+
+ void
+ Enqueue(FileHandle* aFileHandle,
+ FileHandleOp* aFileHandleOp,
+ bool aFinish);
+
+ NS_INLINE_DECL_REFCOUNTING(FileHandleThreadPool)
+
+ void
+ WaitForDirectoriesToComplete(nsTArray<nsCString>&& aDirectoryIds,
+ nsIRunnable* aCallback);
+
+ void
+ Shutdown();
+
+private:
+ FileHandleThreadPool();
+
+ // Reference counted.
+ ~FileHandleThreadPool();
+
+ nsresult
+ Init();
+
+ void
+ Cleanup();
+
+ void
+ FinishFileHandle(FileHandle* aFileHandle);
+
+ bool
+ MaybeFireCallback(StoragesCompleteCallback* aCallback);
+};
+
+class BackgroundMutableFileParentBase
+ : public PBackgroundMutableFileParent
+{
+ nsTHashtable<nsPtrHashKey<FileHandle>> mFileHandles;
+ nsCString mDirectoryId;
+ nsString mFileName;
+ FileHandleStorage mStorage;
+ bool mInvalidated;
+ bool mActorWasAlive;
+ bool mActorDestroyed;
+
+protected:
+ nsCOMPtr<nsIFile> mFile;
+
+public:
+ NS_INLINE_DECL_THREADSAFE_REFCOUNTING(BackgroundMutableFileParentBase)
+
+ void
+ Invalidate();
+
+ FileHandleStorage
+ Storage() const
+ {
+ return mStorage;
+ }
+
+ const nsCString&
+ DirectoryId() const
+ {
+ return mDirectoryId;
+ }
+
+ const nsString&
+ FileName() const
+ {
+ return mFileName;
+ }
+
+ bool
+ RegisterFileHandle(FileHandle* aFileHandle);
+
+ void
+ UnregisterFileHandle(FileHandle* aFileHandle);
+
+ void
+ SetActorAlive();
+
+ bool
+ IsActorDestroyed() const
+ {
+ mozilla::ipc::AssertIsOnBackgroundThread();
+
+ return mActorWasAlive && mActorDestroyed;
+ }
+
+ bool
+ IsInvalidated() const
+ {
+ mozilla::ipc::AssertIsOnBackgroundThread();
+
+ return mInvalidated;
+ }
+
+ virtual void
+ NoteActiveState()
+ { }
+
+ virtual void
+ NoteInactiveState()
+ { }
+
+ virtual mozilla::ipc::PBackgroundParent*
+ GetBackgroundParent() const = 0;
+
+ virtual already_AddRefed<nsISupports>
+ CreateStream(bool aReadOnly);
+
+ virtual already_AddRefed<BlobImpl>
+ CreateBlobImpl()
+ {
+ return nullptr;
+ }
+
+protected:
+ BackgroundMutableFileParentBase(FileHandleStorage aStorage,
+ const nsACString& aDirectoryId,
+ const nsAString& aFileName,
+ nsIFile* aFile);
+
+ // Reference counted.
+ ~BackgroundMutableFileParentBase();
+
+ // IPDL methods are only called by IPDL.
+ virtual void
+ ActorDestroy(ActorDestroyReason aWhy) override;
+
+ virtual PBackgroundFileHandleParent*
+ AllocPBackgroundFileHandleParent(const FileMode& aMode) override;
+
+ virtual bool
+ RecvPBackgroundFileHandleConstructor(PBackgroundFileHandleParent* aActor,
+ const FileMode& aMode) override;
+
+ virtual bool
+ DeallocPBackgroundFileHandleParent(PBackgroundFileHandleParent* aActor)
+ override;
+
+ virtual bool
+ RecvDeleteMe() override;
+
+ virtual bool
+ RecvGetFileId(int64_t* aFileId) override;
+};
+
+} // namespace dom
+} // namespace mozilla
+
+#endif // mozilla_dom_filehandle_ActorsParent_h