gecko-dev/dom/devicestorage/DeviceStorageRequestParent.h

335 строки
9.9 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/. */
#ifndef mozilla_dom_devicestorage_DeviceStorageRequestParent_h
#define mozilla_dom_devicestorage_DeviceStorageRequestParent_h
#include "mozilla/Attributes.h"
#include "mozilla/dom/devicestorage/PDeviceStorageRequestParent.h"
#include "mozilla/dom/ContentChild.h"
#include "mozilla/dom/ContentParent.h"
#include "nsThreadUtils.h"
#include "nsDeviceStorage.h"
#include "nsTArray.h"
namespace mozilla {
namespace dom {
namespace devicestorage {
class DeviceStorageRequestParent : public PDeviceStorageRequestParent
{
public:
explicit DeviceStorageRequestParent(const DeviceStorageParams& aParams);
NS_IMETHOD_(MozExternalRefCountType) AddRef();
NS_IMETHOD_(MozExternalRefCountType) Release();
bool EnsureRequiredPermissions(mozilla::dom::ContentParent* aParent);
void Dispatch();
virtual void ActorDestroy(ActorDestroyReason);
protected:
~DeviceStorageRequestParent();
private:
ThreadSafeAutoRefCnt mRefCnt;
NS_DECL_OWNINGTHREAD
DeviceStorageParams mParams;
// XXXkhuey name collision :(
class CancelableRunnable : public Runnable
{
public:
explicit CancelableRunnable(DeviceStorageRequestParent* aParent)
: mParent(aParent)
{
mCanceled = !(mParent->AddRunnable(this));
}
virtual ~CancelableRunnable() {
}
NS_IMETHOD Run() override {
nsresult rv = NS_OK;
if (!mCanceled) {
rv = CancelableRun();
mParent->RemoveRunnable(this);
}
return rv;
}
void Cancel() {
mCanceled = true;
}
virtual nsresult CancelableRun() = 0;
protected:
RefPtr<DeviceStorageRequestParent> mParent;
private:
bool mCanceled;
};
class CancelableFileEvent : public CancelableRunnable
{
protected:
CancelableFileEvent(DeviceStorageRequestParent* aParent,
already_AddRefed<DeviceStorageFile>&& aFile)
: CancelableRunnable(aParent)
, mFile(Move(aFile)) {}
RefPtr<DeviceStorageFile> mFile;
};
class PostErrorEvent : public CancelableRunnable
{
public:
PostErrorEvent(DeviceStorageRequestParent* aParent, const char* aError);
virtual ~PostErrorEvent() {}
virtual nsresult CancelableRun();
private:
nsString mError;
};
class PostSuccessEvent : public CancelableRunnable
{
public:
explicit PostSuccessEvent(DeviceStorageRequestParent* aParent)
: CancelableRunnable(aParent) {}
virtual ~PostSuccessEvent() {}
virtual nsresult CancelableRun();
};
class PostBlobSuccessEvent : public CancelableFileEvent
{
public:
PostBlobSuccessEvent(DeviceStorageRequestParent* aParent,
already_AddRefed<DeviceStorageFile>&& aFile,
uint32_t aLength, nsACString& aMimeType,
uint64_t aLastModifiedDate)
: CancelableFileEvent(aParent, Move(aFile))
, mLength(aLength)
, mLastModificationDate(aLastModifiedDate)
, mMimeType(aMimeType) {}
virtual ~PostBlobSuccessEvent() {}
virtual nsresult CancelableRun();
private:
uint32_t mLength;
uint64_t mLastModificationDate;
nsCString mMimeType;
};
class PostEnumerationSuccessEvent : public CancelableRunnable
{
public:
PostEnumerationSuccessEvent(DeviceStorageRequestParent* aParent,
const nsAString& aStorageType,
const nsAString& aRelPath,
InfallibleTArray<DeviceStorageFileValue>& aPaths)
: CancelableRunnable(aParent)
, mStorageType(aStorageType)
, mRelPath(aRelPath)
, mPaths(aPaths) {}
virtual ~PostEnumerationSuccessEvent() {}
virtual nsresult CancelableRun();
private:
const nsString mStorageType;
const nsString mRelPath;
InfallibleTArray<DeviceStorageFileValue> mPaths;
};
class CreateFdEvent : public CancelableFileEvent
{
public:
CreateFdEvent(DeviceStorageRequestParent* aParent,
already_AddRefed<DeviceStorageFile>&& aFile)
: CancelableFileEvent(aParent, Move(aFile)) {}
virtual ~CreateFdEvent() {}
virtual nsresult CancelableRun();
};
class WriteFileEvent : public CancelableFileEvent
{
public:
WriteFileEvent(DeviceStorageRequestParent* aParent,
already_AddRefed<DeviceStorageFile>&& aFile,
nsIInputStream* aInputStream, int32_t aRequestType)
: CancelableFileEvent(aParent, Move(aFile))
, mInputStream(aInputStream)
, mRequestType(aRequestType) {}
virtual ~WriteFileEvent() {}
virtual nsresult CancelableRun();
private:
nsCOMPtr<nsIInputStream> mInputStream;
int32_t mRequestType;
};
class DeleteFileEvent : public CancelableFileEvent
{
public:
DeleteFileEvent(DeviceStorageRequestParent* aParent,
already_AddRefed<DeviceStorageFile>&& aFile)
: CancelableFileEvent(aParent, Move(aFile)) {}
virtual ~DeleteFileEvent() {}
virtual nsresult CancelableRun();
};
class FreeSpaceFileEvent : public CancelableFileEvent
{
public:
FreeSpaceFileEvent(DeviceStorageRequestParent* aParent,
already_AddRefed<DeviceStorageFile>&& aFile)
: CancelableFileEvent(aParent, Move(aFile)) {}
virtual ~FreeSpaceFileEvent() {}
virtual nsresult CancelableRun();
};
class UsedSpaceFileEvent : public CancelableFileEvent
{
public:
UsedSpaceFileEvent(DeviceStorageRequestParent* aParent,
already_AddRefed<DeviceStorageFile>&& aFile)
: CancelableFileEvent(aParent, Move(aFile)) {}
virtual ~UsedSpaceFileEvent() {}
virtual nsresult CancelableRun();
};
class ReadFileEvent : public CancelableFileEvent
{
public:
ReadFileEvent(DeviceStorageRequestParent* aParent,
already_AddRefed<DeviceStorageFile>&& aFile);
virtual ~ReadFileEvent() {}
virtual nsresult CancelableRun();
private:
nsCString mMimeType;
};
class EnumerateFileEvent : public CancelableFileEvent
{
public:
EnumerateFileEvent(DeviceStorageRequestParent* aParent,
already_AddRefed<DeviceStorageFile>&& aFile,
uint64_t aSince)
: CancelableFileEvent(aParent, Move(aFile))
, mSince(aSince) {}
virtual ~EnumerateFileEvent() {}
virtual nsresult CancelableRun();
private:
uint64_t mSince;
};
class PostPathResultEvent : public CancelableRunnable
{
public:
PostPathResultEvent(DeviceStorageRequestParent* aParent,
const nsAString& aPath)
: CancelableRunnable(aParent)
, mPath(aPath) {}
virtual ~PostPathResultEvent() {}
virtual nsresult CancelableRun();
private:
nsString mPath;
};
class PostFileDescriptorResultEvent : public CancelableRunnable
{
public:
PostFileDescriptorResultEvent(DeviceStorageRequestParent* aParent,
const FileDescriptor& aFileDescriptor)
: CancelableRunnable(aParent)
, mFileDescriptor(aFileDescriptor) {}
virtual ~PostFileDescriptorResultEvent() {}
virtual nsresult CancelableRun();
private:
FileDescriptor mFileDescriptor;
};
class PostFreeSpaceResultEvent : public CancelableRunnable
{
public:
PostFreeSpaceResultEvent(DeviceStorageRequestParent* aParent,
uint64_t aFreeSpace);
virtual ~PostFreeSpaceResultEvent();
virtual nsresult CancelableRun();
private:
uint64_t mFreeSpace;
};
class PostUsedSpaceResultEvent : public CancelableRunnable
{
public:
PostUsedSpaceResultEvent(DeviceStorageRequestParent* aParent,
const nsAString& aType,
uint64_t aUsedSpace)
: CancelableRunnable(aParent)
, mType(aType)
, mUsedSpace(aUsedSpace) {}
virtual ~PostUsedSpaceResultEvent() {}
virtual nsresult CancelableRun();
private:
nsString mType;
uint64_t mUsedSpace;
};
class PostFormatResultEvent : public CancelableFileEvent
{
public:
PostFormatResultEvent(DeviceStorageRequestParent* aParent,
already_AddRefed<DeviceStorageFile>&& aFile)
: CancelableFileEvent(aParent, Move(aFile)) {}
virtual ~PostFormatResultEvent() {}
virtual nsresult CancelableRun();
};
class PostMountResultEvent : public CancelableFileEvent
{
public:
PostMountResultEvent(DeviceStorageRequestParent* aParent,
already_AddRefed<DeviceStorageFile>&& aFile)
: CancelableFileEvent(aParent, Move(aFile)) {}
virtual ~PostMountResultEvent() {}
virtual nsresult CancelableRun();
};
class PostUnmountResultEvent : public CancelableFileEvent
{
public:
PostUnmountResultEvent(DeviceStorageRequestParent* aParent,
already_AddRefed<DeviceStorageFile>&& aFile)
: CancelableFileEvent(aParent, Move(aFile)) {}
virtual ~PostUnmountResultEvent() {}
virtual nsresult CancelableRun();
};
protected:
bool AddRunnable(CancelableRunnable* aRunnable) {
MutexAutoLock lock(mMutex);
if (mActorDestroyed)
return false;
mRunnables.AppendElement(aRunnable);
return true;
}
void RemoveRunnable(CancelableRunnable* aRunnable) {
MutexAutoLock lock(mMutex);
mRunnables.RemoveElement(aRunnable);
}
Mutex mMutex;
bool mActorDestroyed;
nsTArray<RefPtr<CancelableRunnable> > mRunnables;
};
} // namespace devicestorage
} // namespace dom
} // namespace mozilla
#endif