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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/. */
#include "FileSystemManagerChild.h"
#include "FileSystemAccessHandleChild.h"
#include "FileSystemBackgroundRequestHandler.h"
#include "FileSystemWritableFileStreamChild.h"
#include "mozilla/dom/FileSystemSyncAccessHandle.h"
#include "mozilla/dom/FileSystemWritableFileStream.h"
namespace mozilla::dom {
void FileSystemManagerChild::SetBackgroundRequestHandler(
FileSystemBackgroundRequestHandler* aBackgroundRequestHandler) {
MOZ_ASSERT(aBackgroundRequestHandler);
MOZ_ASSERT(!mBackgroundRequestHandler);
mBackgroundRequestHandler = aBackgroundRequestHandler;
}
void FileSystemManagerChild::CloseAllWritables(
std::function<void()>&& aCallback) {
nsTArray<RefPtr<BoolPromise>> promises;
CloseAllWritablesImpl(promises);
BoolPromise::AllSettled(GetCurrentSerialEventTarget(), promises)
->Then(GetCurrentSerialEventTarget(), __func__,
[callback = std::move(aCallback)](
const BoolPromise::AllSettledPromiseType::ResolveOrRejectValue&
/* aValues */) { callback(); });
}
#ifdef DEBUG
bool FileSystemManagerChild::AllSyncAccessHandlesClosed() const {
for (const auto& item : ManagedPFileSystemAccessHandleChild()) {
auto* child = static_cast<FileSystemAccessHandleChild*>(item);
auto* handle = child->MutableAccessHandlePtr();
if (!handle->IsClosed()) {
return false;
}
}
return true;
}
bool FileSystemManagerChild::AllWritableFileStreamsClosed() const {
for (const auto& item : ManagedPFileSystemWritableFileStreamChild()) {
auto* const child = static_cast<FileSystemWritableFileStreamChild*>(item);
auto* const handle = child->MutableWritableFileStreamPtr();
if (!handle) {
continue;
}
if (!handle->IsClosed()) {
return false;
}
}
return true;
}
#endif
void FileSystemManagerChild::Shutdown() {
if (!CanSend()) {
return;
}
Close();
}
already_AddRefed<PFileSystemWritableFileStreamChild>
FileSystemManagerChild::AllocPFileSystemWritableFileStreamChild() {
return MakeAndAddRef<FileSystemWritableFileStreamChild>();
}
::mozilla::ipc::IPCResult FileSystemManagerChild::RecvCloseAll(
CloseAllResolver&& aResolver) {
nsTArray<RefPtr<BoolPromise>> promises;
// NOTE: getFile() creates blobs that read the data from the child;
// we'll need to abort any reads and resolve this call only when all
// blobs are closed.
for (const auto& item : ManagedPFileSystemAccessHandleChild()) {
auto* child = static_cast<FileSystemAccessHandleChild*>(item);
auto* handle = child->MutableAccessHandlePtr();
if (handle->IsOpen()) {
promises.AppendElement(handle->BeginClose());
} else if (handle->IsClosing()) {
promises.AppendElement(handle->OnClose());
}
}
CloseAllWritablesImpl(promises);
BoolPromise::AllSettled(GetCurrentSerialEventTarget(), promises)
->Then(GetCurrentSerialEventTarget(), __func__,
[resolver = std::move(aResolver)](
const BoolPromise::AllSettledPromiseType::ResolveOrRejectValue&
/* aValues */) { resolver(NS_OK); });
return IPC_OK();
}
void FileSystemManagerChild::ActorDestroy(ActorDestroyReason aWhy) {
if (mBackgroundRequestHandler) {
mBackgroundRequestHandler->ClearActor();
mBackgroundRequestHandler = nullptr;
}
}
template <class T>
void FileSystemManagerChild::CloseAllWritablesImpl(T& aPromises) {
for (const auto& item : ManagedPFileSystemWritableFileStreamChild()) {
auto* const child = static_cast<FileSystemWritableFileStreamChild*>(item);
auto* const handle = child->MutableWritableFileStreamPtr();
if (handle && !handle->IsClosed()) {
aPromises.AppendElement(handle->BeginClose());
}
}
}
} // namespace mozilla::dom
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