зеркало из https://github.com/mozilla/gecko-dev.git
132 строки
4.0 KiB
C++
132 строки
4.0 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "FileSystemManagerChild.h"
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#include "FileSystemAccessHandleChild.h"
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#include "FileSystemBackgroundRequestHandler.h"
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#include "FileSystemWritableFileStreamChild.h"
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#include "mozilla/dom/FileSystemSyncAccessHandle.h"
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#include "mozilla/dom/FileSystemWritableFileStream.h"
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namespace mozilla::dom {
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void FileSystemManagerChild::SetBackgroundRequestHandler(
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FileSystemBackgroundRequestHandler* aBackgroundRequestHandler) {
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MOZ_ASSERT(aBackgroundRequestHandler);
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MOZ_ASSERT(!mBackgroundRequestHandler);
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mBackgroundRequestHandler = aBackgroundRequestHandler;
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}
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void FileSystemManagerChild::CloseAllWritables(
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std::function<void()>&& aCallback) {
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nsTArray<RefPtr<BoolPromise>> promises;
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CloseAllWritablesImpl(promises);
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BoolPromise::AllSettled(GetCurrentSerialEventTarget(), promises)
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->Then(GetCurrentSerialEventTarget(), __func__,
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[callback = std::move(aCallback)](
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const BoolPromise::AllSettledPromiseType::ResolveOrRejectValue&
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/* aValues */) { callback(); });
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}
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#ifdef DEBUG
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bool FileSystemManagerChild::AllSyncAccessHandlesClosed() const {
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for (const auto& item : ManagedPFileSystemAccessHandleChild()) {
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auto* child = static_cast<FileSystemAccessHandleChild*>(item);
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auto* handle = child->MutableAccessHandlePtr();
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if (!handle->IsClosed()) {
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return false;
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}
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}
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return true;
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}
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bool FileSystemManagerChild::AllWritableFileStreamsClosed() const {
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for (const auto& item : ManagedPFileSystemWritableFileStreamChild()) {
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auto* const child = static_cast<FileSystemWritableFileStreamChild*>(item);
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auto* const handle = child->MutableWritableFileStreamPtr();
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if (!handle) {
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continue;
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}
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if (!handle->IsClosed()) {
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return false;
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}
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}
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return true;
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}
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#endif
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void FileSystemManagerChild::Shutdown() {
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if (!CanSend()) {
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return;
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}
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Close();
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}
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already_AddRefed<PFileSystemWritableFileStreamChild>
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FileSystemManagerChild::AllocPFileSystemWritableFileStreamChild() {
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return MakeAndAddRef<FileSystemWritableFileStreamChild>();
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}
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::mozilla::ipc::IPCResult FileSystemManagerChild::RecvCloseAll(
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CloseAllResolver&& aResolver) {
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nsTArray<RefPtr<BoolPromise>> promises;
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// NOTE: getFile() creates blobs that read the data from the child;
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// we'll need to abort any reads and resolve this call only when all
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// blobs are closed.
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for (const auto& item : ManagedPFileSystemAccessHandleChild()) {
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auto* child = static_cast<FileSystemAccessHandleChild*>(item);
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auto* handle = child->MutableAccessHandlePtr();
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if (handle->IsOpen()) {
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promises.AppendElement(handle->BeginClose());
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} else if (handle->IsClosing()) {
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promises.AppendElement(handle->OnClose());
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}
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}
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CloseAllWritablesImpl(promises);
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BoolPromise::AllSettled(GetCurrentSerialEventTarget(), promises)
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->Then(GetCurrentSerialEventTarget(), __func__,
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[resolver = std::move(aResolver)](
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const BoolPromise::AllSettledPromiseType::ResolveOrRejectValue&
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/* aValues */) { resolver(NS_OK); });
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return IPC_OK();
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}
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void FileSystemManagerChild::ActorDestroy(ActorDestroyReason aWhy) {
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if (mBackgroundRequestHandler) {
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mBackgroundRequestHandler->ClearActor();
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mBackgroundRequestHandler = nullptr;
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}
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}
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template <class T>
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void FileSystemManagerChild::CloseAllWritablesImpl(T& aPromises) {
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for (const auto& item : ManagedPFileSystemWritableFileStreamChild()) {
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auto* const child = static_cast<FileSystemWritableFileStreamChild*>(item);
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auto* const handle = child->MutableWritableFileStreamPtr();
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if (handle && !handle->IsClosed()) {
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aPromises.AppendElement(handle->BeginClose());
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}
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}
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}
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} // namespace mozilla::dom
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