gecko-dev/dom/filesystem/FileSystemRequestParent.cpp

110 строки
3.0 KiB
C++

/* -*- 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 "mozilla/dom/FileSystemRequestParent.h"
#include "CreateDirectoryTask.h"
#include "CreateFileTask.h"
#include "GetDirectoryListingTask.h"
#include "GetFileOrDirectoryTask.h"
#include "RemoveTask.h"
#include "mozilla/AppProcessChecker.h"
#include "mozilla/dom/FileSystemBase.h"
namespace mozilla {
namespace dom {
FileSystemRequestParent::FileSystemRequestParent()
: mDestroyed(false)
{
AssertIsOnBackgroundThread();
}
FileSystemRequestParent::~FileSystemRequestParent()
{
AssertIsOnBackgroundThread();
}
#define FILESYSTEM_REQUEST_PARENT_DISPATCH_ENTRY(name) \
case FileSystemParams::TFileSystem##name##Params: { \
const FileSystem##name##Params& p = aParams; \
mFileSystem = FileSystemBase::DeserializeDOMPath(p.filesystem()); \
MOZ_ASSERT(mFileSystem); \
mTask = name##TaskParent::Create(mFileSystem, p, this, rv); \
if (NS_WARN_IF(rv.Failed())) { \
return false; \
} \
break; \
}
bool
FileSystemRequestParent::Initialize(const FileSystemParams& aParams)
{
AssertIsOnBackgroundThread();
ErrorResult rv;
switch (aParams.type()) {
FILESYSTEM_REQUEST_PARENT_DISPATCH_ENTRY(CreateDirectory)
FILESYSTEM_REQUEST_PARENT_DISPATCH_ENTRY(CreateFile)
FILESYSTEM_REQUEST_PARENT_DISPATCH_ENTRY(GetDirectoryListing)
FILESYSTEM_REQUEST_PARENT_DISPATCH_ENTRY(GetFileOrDirectory)
FILESYSTEM_REQUEST_PARENT_DISPATCH_ENTRY(GetFiles)
FILESYSTEM_REQUEST_PARENT_DISPATCH_ENTRY(Remove)
default: {
NS_RUNTIMEABORT("not reached");
break;
}
}
if (NS_WARN_IF(!mTask || !mFileSystem)) {
// Should never reach here.
return false;
}
if (mFileSystem->PermissionCheckType() != FileSystemBase::ePermissionCheckNotRequired) {
nsAutoCString access;
mTask->GetPermissionAccessType(access);
mPermissionName = mFileSystem->GetPermission();
mPermissionName.Append('-');
mPermissionName.Append(access);
}
return true;
}
void
FileSystemRequestParent::Start()
{
MOZ_ASSERT(!mDestroyed);
MOZ_ASSERT(mFileSystem);
MOZ_ASSERT(mTask);
mTask->Start();
}
void
FileSystemRequestParent::ActorDestroy(ActorDestroyReason aWhy)
{
AssertIsOnBackgroundThread();
MOZ_ASSERT(!mDestroyed);
if (!mFileSystem) {
return;
}
mFileSystem->Shutdown();
mFileSystem = nullptr;
mTask = nullptr;
mDestroyed = true;
}
} // namespace dom
} // namespace mozilla