/* 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 GMPStorageChild_h_
#define GMPStorageChild_h_
#include "gmp-platform.h"
#include "gmp-storage.h"
#include "mozilla/Mutex.h"
#include "mozilla/RecursiveMutex.h"
#include "mozilla/gmp/PGMPStorageChild.h"
#include "nsRefPtrHashtable.h"
#include "nsTHashtable.h"
namespace mozilla::gmp {
class GMPChild;
class GMPStorageChild;
class GMPRecordImpl final : public GMPRecord {
public:
NS_INLINE_DECL_THREADSAFE_REFCOUNTING(GMPRecordImpl)
GMPRecordImpl(GMPStorageChild* aOwner,
const nsCString& aName,
GMPRecordClient* aClient);
void DestroyOwner();
// GMPRecord.
GMPErr Open() override;
GMPErr Read() override;
GMPErr Write(
const uint8_t* aData, uint32_t aDataSize) override;
GMPErr Close() override;
const nsCString& Name()
const {
return mName; }
void OpenComplete(GMPErr aStatus);
void ReadComplete(GMPErr aStatus,
const uint8_t* aBytes, uint32_t aLength);
void WriteComplete(GMPErr aStatus);
private:
RefPtr<GMPStorageChild> GetOwner();
~GMPRecordImpl() =
default;
RecursiveMutex mMutex{
"GMPRecordImpl"};
const nsCString mName;
GMPRecordClient* mClient MOZ_GUARDED_BY(mMutex);
GMPStorageChild* mOwner MOZ_GUARDED_BY(mMutex);
};
class GMPStorageChild final : public PGMPStorageChild {
friend class PGMPStorageChild;
public:
NS_INLINE_DECL_THREADSAFE_REFCOUNTING(GMPStorageChild, final)
explicit GMPStorageChild(GMPChild* aPlugin);
GMPErr CreateRecord(
const nsCString& aRecordName, GMPRecord** aOutRecord,
GMPRecordClient* aClient);
GMPErr Open(GMPRecordImpl* aRecord);
GMPErr Read(GMPRecordImpl* aRecord);
GMPErr Write(GMPRecordImpl* aRecord,
const uint8_t* aData,
uint32_t aDataSize);
GMPErr Close(
const nsCString& aRecordName);
void ActorDestroy(ActorDestroyReason aWhy) override;
private:
bool HasRecord(
const nsCString& aRecordName) MOZ_REQUIRES(mMutex);
already_AddRefed<GMPRecordImpl> GetRecord(
const nsCString& aRecordName);
protected:
~GMPStorageChild() =
default;
// PGMPStorageChild
mozilla::ipc::IPCResult RecvOpenComplete(
const nsCString& aRecordName,
const GMPErr& aStatus);
mozilla::ipc::IPCResult RecvReadComplete(
const nsCString& aRecordName,
const GMPErr& aStatus,
nsTArray<uint8_t>&& aBytes);
mozilla::ipc::IPCResult RecvWriteComplete(
const nsCString& aRecordName,
const GMPErr& aStatus);
mozilla::ipc::IPCResult RecvShutdown();
private:
Mutex mMutex{
"GMPStorageChild"};
nsRefPtrHashtable<nsCStringHashKey, GMPRecordImpl> mRecords
MOZ_GUARDED_BY(mMutex);
GMPChild* mPlugin;
bool mShutdown MOZ_GUARDED_BY(mMutex) =
false;
};
}
// namespace mozilla::gmp
#endif // GMPStorageChild_h_