1 files changed, 85 insertions, 0 deletions
diff --git a/dom/fs/parent/FileSystemWritableFileStreamParent.cpp b/dom/fs/parent/FileSystemWritableFileStreamParent.cpp
new file mode 100644
index 0000000000..f0e9a3852c
--- /dev/null
+++ b/dom/fs/parent/FileSystemWritableFileStreamParent.cpp
@@ -0,0 +1,85 @@
+/* -*- 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 "FileSystemWritableFileStreamParent.h"
+
+#include "FileSystemDataManager.h"
+#include "FileSystemStreamCallbacks.h"
+#include "mozilla/dom/FileSystemLog.h"
+#include "mozilla/dom/FileSystemManagerParent.h"
+#include "mozilla/dom/quota/RemoteQuotaObjectParent.h"
+
+namespace mozilla::dom {
+
+class FileSystemWritableFileStreamParent::FileSystemWritableFileStreamCallbacks
+    : public FileSystemStreamCallbacks {
+ public:
+  void CloseRemoteQuotaObjectParent() {
+    if (mRemoteQuotaObjectParent) {
+      mRemoteQuotaObjectParent->Close();
+    }
+  }
+};
+
+FileSystemWritableFileStreamParent::FileSystemWritableFileStreamParent(
+    RefPtr<FileSystemManagerParent> aManager, const fs::EntryId& aEntryId,
+    const fs::FileId& aTemporaryFileId, bool aIsExclusive)
+    : mManager(std::move(aManager)),
+      mEntryId(aEntryId),
+      mTemporaryFileId(aTemporaryFileId),
+      mIsExclusive(aIsExclusive) {}
+
+FileSystemWritableFileStreamParent::~FileSystemWritableFileStreamParent() {
+  MOZ_ASSERT(mClosed);
+}
+
+mozilla::ipc::IPCResult FileSystemWritableFileStreamParent::RecvClose(
+    bool aAbort, CloseResolver&& aResolver) {
+  Close(aAbort);
+
+  aResolver(void_t());
+
+  return IPC_OK();
+}
+
+void FileSystemWritableFileStreamParent::ActorDestroy(ActorDestroyReason aWhy) {
+  if (mStreamCallbacks) {
+    mStreamCallbacks->CloseRemoteQuotaObjectParent();
+    mStreamCallbacks = nullptr;
+  }
+
+  if (!IsClosed()) {
+    Close(/* aAbort */ true);
+  }
+}
+
+nsIInterfaceRequestor*
+FileSystemWritableFileStreamParent::GetOrCreateStreamCallbacks() {
+  if (!mStreamCallbacks) {
+    if (mClosed) {
+      return nullptr;
+    }
+
+    mStreamCallbacks = MakeRefPtr<FileSystemWritableFileStreamCallbacks>();
+  }
+
+  return mStreamCallbacks.get();
+}
+
+void FileSystemWritableFileStreamParent::Close(bool aAbort) {
+  LOG(("Closing WritableFileStream"));
+
+  mClosed.Flip();
+
+  if (mIsExclusive) {
+    mManager->DataManagerStrongRef()->UnlockExclusive(mEntryId);
+  } else {
+    mManager->DataManagerStrongRef()->UnlockShared(mEntryId, mTemporaryFileId,
+                                                   aAbort);
+  }
+}
+
+}  // namespace mozilla::dom