зеркало из https://github.com/mozilla/gecko-dev.git
1066 строки
23 KiB
C++
1066 строки
23 KiB
C++
/* -*- Mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; tab-width: 40 -*- */
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/* vim: set ts=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 file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef mozilla_dom_bluetooth_bluedroid_bluetoothdaemonhelpers_h__
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#define mozilla_dom_bluetooth_bluedroid_bluetoothdaemonhelpers_h__
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#include "BluetoothCommon.h"
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#include "mozilla/ArrayUtils.h"
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#include "mozilla/dom/bluetooth/BluetoothTypes.h"
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#include "mozilla/ipc/BluetoothDaemonConnection.h"
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#include "nsThreadUtils.h"
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using namespace mozilla::ipc;
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BEGIN_BLUETOOTH_NAMESPACE
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//
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// Helper structures
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//
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enum BluetoothAclState {
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ACL_STATE_CONNECTED,
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ACL_STATE_DISCONNECTED
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};
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struct BluetoothAddress {
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uint8_t mAddr[6];
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};
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struct BluetoothAvrcpAttributeTextPairs {
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BluetoothAvrcpAttributeTextPairs(const uint8_t* aAttr,
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const char** aText,
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size_t aLength)
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: mAttr(aAttr)
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, mText(aText)
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, mLength(aLength)
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{ }
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const uint8_t* mAttr;
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const char** mText;
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size_t mLength;
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};
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struct BluetoothAvrcpAttributeValuePairs {
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BluetoothAvrcpAttributeValuePairs(const uint8_t* aAttr,
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const uint8_t* aValue,
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size_t aLength)
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: mAttr(aAttr)
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, mValue(aValue)
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, mLength(aLength)
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{ }
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const uint8_t* mAttr;
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const uint8_t* mValue;
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size_t mLength;
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};
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struct BluetoothAvrcpEventParamPair {
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BluetoothAvrcpEventParamPair(BluetoothAvrcpEvent aEvent,
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const BluetoothAvrcpNotificationParam& aParam)
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: mEvent(aEvent)
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, mParam(aParam)
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{ }
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BluetoothAvrcpEvent mEvent;
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const BluetoothAvrcpNotificationParam& mParam;
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};
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struct BluetoothConfigurationParameter {
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uint8_t mType;
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uint16_t mLength;
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nsAutoArrayPtr<uint8_t> mValue;
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};
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struct BluetoothDaemonPDUHeader {
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BluetoothDaemonPDUHeader()
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: mService(0x00)
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, mOpcode(0x00)
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, mLength(0x00)
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{ }
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BluetoothDaemonPDUHeader(uint8_t aService, uint8_t aOpcode, uint8_t aLength)
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: mService(aService)
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, mOpcode(aOpcode)
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, mLength(aLength)
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{ }
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uint8_t mService;
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uint8_t mOpcode;
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uint16_t mLength;
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};
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struct BluetoothPinCode {
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uint8_t mPinCode[16];
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uint8_t mLength;
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};
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struct BluetoothRemoteName {
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uint8_t mName[249];
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};
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struct BluetoothServiceName {
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uint8_t mName[256];
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};
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//
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// Conversion
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//
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// PDUs can only store primitive data types, such as integers or
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// strings. Gecko often uses more complex data types, such as
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// enumerators or structures. Conversion functions convert between
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// primitive data and internal Gecko's data types during a PDU's
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// packing and unpacking.
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//
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nsresult
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Convert(bool aIn, uint8_t& aOut);
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nsresult
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Convert(bool aIn, BluetoothScanMode& aOut);
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nsresult
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Convert(int aIn, uint8_t& aOut);
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nsresult
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Convert(int aIn, int16_t& aOut);
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nsresult
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Convert(int aIn, int32_t& aOut);
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nsresult
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Convert(uint8_t aIn, bool& aOut);
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nsresult
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Convert(uint8_t aIn, char& aOut);
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nsresult
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Convert(uint8_t aIn, int& aOut);
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nsresult
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Convert(uint8_t aIn, unsigned long& aOut);
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nsresult
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Convert(uint8_t aIn, BluetoothA2dpAudioState& aOut);
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nsresult
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Convert(uint8_t aIn, BluetoothA2dpConnectionState& aOut);
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nsresult
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Convert(uint8_t aIn, BluetoothAclState& aOut);
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nsresult
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Convert(uint8_t aIn, BluetoothBondState& aOut);
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nsresult
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Convert(uint8_t aIn, BluetoothAvrcpEvent& aOut);
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nsresult
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Convert(uint8_t aIn, BluetoothAvrcpMediaAttribute& aOut);
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nsresult
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Convert(uint8_t aIn, BluetoothAvrcpPlayerAttribute& aOut);
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nsresult
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Convert(uint8_t aIn, BluetoothAvrcpRemoteFeature& aOut);
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nsresult
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Convert(uint8_t aIn, BluetoothHandsfreeAudioState& aOut);
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nsresult
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Convert(uint8_t aIn, BluetoothHandsfreeCallHoldType& aOut);
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nsresult
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Convert(uint8_t aIn, BluetoothHandsfreeConnectionState& aOut);
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nsresult
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Convert(uint8_t aIn, BluetoothHandsfreeNRECState& aOut);
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nsresult
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Convert(uint8_t aIn, BluetoothHandsfreeVoiceRecognitionState& aOut);
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nsresult
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Convert(uint8_t aIn, BluetoothHandsfreeVolumeType& aOut);
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nsresult
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Convert(uint8_t aIn, BluetoothTypeOfDevice& aOut);
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nsresult
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Convert(uint8_t aIn, BluetoothPropertyType& aOut);
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nsresult
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Convert(uint8_t aIn, BluetoothScanMode& aOut);
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nsresult
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Convert(uint8_t aIn, BluetoothSspVariant& aOut);
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nsresult
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Convert(uint8_t aIn, BluetoothStatus& aOut);
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nsresult
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Convert(uint32_t aIn, int& aOut);
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nsresult
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Convert(uint32_t aIn, uint8_t& aOut);
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nsresult
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Convert(size_t aIn, uint16_t& aOut);
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nsresult
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Convert(const nsAString& aIn, BluetoothAddress& aOut);
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nsresult
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Convert(const nsAString& aIn, BluetoothPinCode& aOut);
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nsresult
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Convert(const nsAString& aIn, BluetoothPropertyType& aOut);
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nsresult
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Convert(const nsAString& aIn, BluetoothServiceName& aOut);
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nsresult
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Convert(const nsAString& aIn, BluetoothSspVariant& aOut);
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nsresult
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Convert(BluetoothAclState aIn, bool& aOut);
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nsresult
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Convert(const BluetoothAddress& aIn, nsAString& aOut);
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nsresult
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Convert(BluetoothAvrcpEvent aIn, uint8_t& aOut);
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nsresult
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Convert(BluetoothAvrcpNotification aIn, uint8_t& aOut);
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nsresult
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Convert(BluetoothAvrcpPlayerAttribute aIn, uint8_t& aOut);
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nsresult
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Convert(BluetoothAvrcpRemoteFeature aIn, unsigned long& aOut);
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nsresult
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Convert(BluetoothAvrcpStatus aIn, uint8_t& aOut);
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nsresult
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Convert(BluetoothHandsfreeAtResponse aIn, uint8_t& aOut);
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nsresult
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Convert(BluetoothHandsfreeCallAddressType aIn, uint8_t& aOut);
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nsresult
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Convert(BluetoothHandsfreeCallDirection aIn, uint8_t& aOut);
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nsresult
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Convert(BluetoothHandsfreeCallState aIn, uint8_t& aOut);
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nsresult
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Convert(BluetoothHandsfreeCallMode aIn, uint8_t& aOut);
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nsresult
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Convert(BluetoothHandsfreeCallMptyType aIn, uint8_t& aOut);
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nsresult
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Convert(BluetoothHandsfreeNetworkState aIn, uint8_t& aOut);
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nsresult
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Convert(BluetoothHandsfreeServiceType aIn, uint8_t& aOut);
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nsresult
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Convert(BluetoothHandsfreeVolumeType aIn, uint8_t& aOut);
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nsresult
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Convert(BluetoothPropertyType aIn, uint8_t& aOut);
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nsresult
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Convert(const BluetoothRemoteName& aIn, nsAString& aOut);
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nsresult
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Convert(BluetoothScanMode aIn, uint8_t& aOut);
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nsresult
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Convert(BluetoothSocketType aIn, uint8_t& aOut);
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nsresult
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Convert(BluetoothSspVariant aIn, uint8_t& aOut);
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nsresult
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Convert(ControlPlayStatus aIn, uint8_t& aOut);
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//
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// Packing
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//
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// introduce link errors on non-handled data types
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template <typename T>
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nsresult
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PackPDU(T aIn, BluetoothDaemonPDU& aPDU);
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nsresult
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PackPDU(bool aIn, BluetoothDaemonPDU& aPDU);
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inline nsresult
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PackPDU(uint8_t aIn, BluetoothDaemonPDU& aPDU)
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{
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return aPDU.Write(aIn);
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}
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inline nsresult
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PackPDU(uint16_t aIn, BluetoothDaemonPDU& aPDU)
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{
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return aPDU.Write(aIn);
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}
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inline nsresult
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PackPDU(int32_t aIn, BluetoothDaemonPDU& aPDU)
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{
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return aPDU.Write(aIn);
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}
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inline nsresult
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PackPDU(uint32_t aIn, BluetoothDaemonPDU& aPDU)
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{
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return aPDU.Write(aIn);
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}
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nsresult
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PackPDU(const BluetoothAddress& aIn, BluetoothDaemonPDU& aPDU);
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nsresult
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PackPDU(const BluetoothAvrcpAttributeTextPairs& aIn,
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BluetoothDaemonPDU& aPDU);
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nsresult
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PackPDU(const BluetoothAvrcpAttributeValuePairs& aIn,
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BluetoothDaemonPDU& aPDU);
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nsresult
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PackPDU(const BluetoothAvrcpElementAttribute& aIn, BluetoothDaemonPDU& aPDU);
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nsresult
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PackPDU(BluetoothAvrcpEvent aIn, BluetoothDaemonPDU& aPDU);
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nsresult
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PackPDU(const BluetoothAvrcpEventParamPair& aIn, BluetoothDaemonPDU& aPDU);
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nsresult
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PackPDU(BluetoothAvrcpNotification aIn, BluetoothDaemonPDU& aPDU);
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nsresult
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PackPDU(BluetoothAvrcpPlayerAttribute aIn, BluetoothDaemonPDU& aPDU);
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nsresult
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PackPDU(BluetoothAvrcpStatus aIn, BluetoothDaemonPDU& aPDU);
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nsresult
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PackPDU(const BluetoothConfigurationParameter& aIn, BluetoothDaemonPDU& aPDU);
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nsresult
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PackPDU(const BluetoothDaemonPDUHeader& aIn, BluetoothDaemonPDU& aPDU);
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nsresult
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PackPDU(const BluetoothHandsfreeAtResponse& aIn, BluetoothDaemonPDU& aPDU);
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nsresult
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PackPDU(const BluetoothHandsfreeCallAddressType& aIn, BluetoothDaemonPDU& aPDU);
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nsresult
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PackPDU(const BluetoothHandsfreeCallDirection& aIn, BluetoothDaemonPDU& aPDU);
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nsresult
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PackPDU(const BluetoothHandsfreeCallMode& aIn, BluetoothDaemonPDU& aPDU);
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nsresult
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PackPDU(const BluetoothHandsfreeCallMptyType& aIn, BluetoothDaemonPDU& aPDU);
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nsresult
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PackPDU(const BluetoothHandsfreeCallState& aIn, BluetoothDaemonPDU& aPDU);
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nsresult
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PackPDU(const BluetoothHandsfreeNetworkState& aIn, BluetoothDaemonPDU& aPDU);
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nsresult
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PackPDU(const BluetoothHandsfreeServiceType& aIn, BluetoothDaemonPDU& aPDU);
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nsresult
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PackPDU(const BluetoothHandsfreeVolumeType& aIn, BluetoothDaemonPDU& aPDU);
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nsresult
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PackPDU(const BluetoothNamedValue& aIn, BluetoothDaemonPDU& aPDU);
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nsresult
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PackPDU(const BluetoothPinCode& aIn, BluetoothDaemonPDU& aPDU);
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nsresult
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PackPDU(BluetoothPropertyType aIn, BluetoothDaemonPDU& aPDU);
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nsresult
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PackPDU(const BluetoothServiceName& aIn, BluetoothDaemonPDU& aPDU);
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nsresult
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PackPDU(BluetoothSocketType aIn, BluetoothDaemonPDU& aPDU);
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nsresult
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PackPDU(BluetoothSspVariant aIn, BluetoothDaemonPDU& aPDU);
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nsresult
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PackPDU(BluetoothScanMode aIn, BluetoothDaemonPDU& aPDU);
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nsresult
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PackPDU(ControlPlayStatus aIn, BluetoothDaemonPDU& aPDU);
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/* |PackConversion| is a helper for packing converted values. Pass
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* an instance of this structure to |PackPDU| to convert a value from
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* the input type to the output type and and write it to the PDU.
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*/
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template<typename Tin, typename Tout>
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struct PackConversion {
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PackConversion(const Tin& aIn)
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: mIn(aIn)
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{ }
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const Tin& mIn;
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};
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template<typename Tin, typename Tout>
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inline nsresult
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PackPDU(const PackConversion<Tin, Tout>& aIn, BluetoothDaemonPDU& aPDU)
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{
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Tout out;
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nsresult rv = Convert(aIn.mIn, out);
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if (NS_FAILED(rv)) {
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return rv;
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}
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return PackPDU(out, aPDU);
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}
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/* |PackArray| is a helper for packing arrays. Pass an instance
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* of this structure as the first argument to |PackPDU| to pack
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* an array. The array's maximum default length is 255 elements.
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*/
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template <typename T>
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struct PackArray
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{
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PackArray(const T* aData, size_t aLength)
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: mData(aData)
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, mLength(aLength)
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{ }
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const T* mData;
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size_t mLength;
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};
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/* This implementation of |PackPDU| packs the length of an array
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* and the elements of the array one-by-one.
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*/
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template<typename T>
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inline nsresult
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PackPDU(const PackArray<T>& aIn, BluetoothDaemonPDU& aPDU)
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{
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for (size_t i = 0; i < aIn.mLength; ++i) {
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nsresult rv = PackPDU(aIn.mData[i], aPDU);
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if (NS_FAILED(rv)) {
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return rv;
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}
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}
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return NS_OK;
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}
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template<>
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inline nsresult
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PackPDU<uint8_t>(const PackArray<uint8_t>& aIn, BluetoothDaemonPDU& aPDU)
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{
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/* Write raw bytes in one pass */
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return aPDU.Write(aIn.mData, aIn.mLength);
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}
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/* |PackCString0| is a helper for packing 0-terminated C string,
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* including the \0 character. Pass an instance of this structure
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* as the first argument to |PackPDU| to pack a string.
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*/
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struct PackCString0
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{
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PackCString0(const nsCString& aString)
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: mString(aString)
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{ }
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const nsCString& mString;
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};
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/* This implementation of |PackPDU| packs a 0-terminated C string.
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*/
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inline nsresult
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PackPDU(const PackCString0& aIn, BluetoothDaemonPDU& aPDU)
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{
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return PackPDU(
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PackArray<uint8_t>(reinterpret_cast<const uint8_t*>(aIn.mString.get()),
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aIn.mString.Length() + 1), aPDU);
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}
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template <typename T1, typename T2>
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inline nsresult
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PackPDU(const T1& aIn1, const T2& aIn2, BluetoothDaemonPDU& aPDU)
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{
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nsresult rv = PackPDU(aIn1, aPDU);
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if (NS_FAILED(rv)) {
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return rv;
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}
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return PackPDU(aIn2, aPDU);
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}
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template <typename T1, typename T2, typename T3>
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inline nsresult
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PackPDU(const T1& aIn1, const T2& aIn2, const T3& aIn3,
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BluetoothDaemonPDU& aPDU)
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{
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nsresult rv = PackPDU(aIn1, aPDU);
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if (NS_FAILED(rv)) {
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return rv;
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}
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rv = PackPDU(aIn2, aPDU);
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if (NS_FAILED(rv)) {
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return rv;
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}
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return PackPDU(aIn3, aPDU);
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}
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template <typename T1, typename T2, typename T3, typename T4>
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inline nsresult
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PackPDU(const T1& aIn1, const T2& aIn2, const T3& aIn3, const T4& aIn4,
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BluetoothDaemonPDU& aPDU)
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{
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nsresult rv = PackPDU(aIn1, aPDU);
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if (NS_FAILED(rv)) {
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return rv;
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}
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rv = PackPDU(aIn2, aPDU);
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if (NS_FAILED(rv)) {
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return rv;
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}
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rv = PackPDU(aIn3, aPDU);
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if (NS_FAILED(rv)) {
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return rv;
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}
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return PackPDU(aIn4, aPDU);
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}
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template <typename T1, typename T2, typename T3,
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typename T4, typename T5>
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inline nsresult
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PackPDU(const T1& aIn1, const T2& aIn2, const T3& aIn3,
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|
const T4& aIn4, const T5& aIn5,
|
|
BluetoothDaemonPDU& aPDU)
|
|
{
|
|
nsresult rv = PackPDU(aIn1, aPDU);
|
|
if (NS_FAILED(rv)) {
|
|
return rv;
|
|
}
|
|
rv = PackPDU(aIn2, aPDU);
|
|
if (NS_FAILED(rv)) {
|
|
return rv;
|
|
}
|
|
rv = PackPDU(aIn3, aPDU);
|
|
if (NS_FAILED(rv)) {
|
|
return rv;
|
|
}
|
|
rv = PackPDU(aIn4, aPDU);
|
|
if (NS_FAILED(rv)) {
|
|
return rv;
|
|
}
|
|
return PackPDU(aIn5, aPDU);
|
|
}
|
|
|
|
template <typename T1, typename T2, typename T3,
|
|
typename T4, typename T5, typename T6,
|
|
typename T7>
|
|
inline nsresult
|
|
PackPDU(const T1& aIn1, const T2& aIn2, const T3& aIn3,
|
|
const T4& aIn4, const T5& aIn5, const T6& aIn6,
|
|
const T7& aIn7, BluetoothDaemonPDU& aPDU)
|
|
{
|
|
nsresult rv = PackPDU(aIn1, aPDU);
|
|
if (NS_FAILED(rv)) {
|
|
return rv;
|
|
}
|
|
rv = PackPDU(aIn2, aPDU);
|
|
if (NS_FAILED(rv)) {
|
|
return rv;
|
|
}
|
|
rv = PackPDU(aIn3, aPDU);
|
|
if (NS_FAILED(rv)) {
|
|
return rv;
|
|
}
|
|
rv = PackPDU(aIn4, aPDU);
|
|
if (NS_FAILED(rv)) {
|
|
return rv;
|
|
}
|
|
rv = PackPDU(aIn5, aPDU);
|
|
if (NS_FAILED(rv)) {
|
|
return rv;
|
|
}
|
|
rv = PackPDU(aIn6, aPDU);
|
|
if (NS_FAILED(rv)) {
|
|
return rv;
|
|
}
|
|
return PackPDU(aIn7, aPDU);
|
|
}
|
|
|
|
//
|
|
// Unpacking
|
|
//
|
|
|
|
// introduce link errors on non-handled data types
|
|
template <typename T>
|
|
nsresult
|
|
UnpackPDU(BluetoothDaemonPDU& aPDU, T& aOut);
|
|
|
|
inline nsresult
|
|
UnpackPDU(BluetoothDaemonPDU& aPDU, int8_t& aOut)
|
|
{
|
|
return aPDU.Read(aOut);
|
|
}
|
|
|
|
inline nsresult
|
|
UnpackPDU(BluetoothDaemonPDU& aPDU, uint8_t& aOut)
|
|
{
|
|
return aPDU.Read(aOut);
|
|
}
|
|
|
|
inline nsresult
|
|
UnpackPDU(BluetoothDaemonPDU& aPDU, uint16_t& aOut)
|
|
{
|
|
return aPDU.Read(aOut);
|
|
}
|
|
|
|
inline nsresult
|
|
UnpackPDU(BluetoothDaemonPDU& aPDU, int32_t& aOut)
|
|
{
|
|
return aPDU.Read(aOut);
|
|
}
|
|
|
|
inline nsresult
|
|
UnpackPDU(BluetoothDaemonPDU& aPDU, uint32_t& aOut)
|
|
{
|
|
return aPDU.Read(aOut);
|
|
}
|
|
|
|
nsresult
|
|
UnpackPDU(BluetoothDaemonPDU& aPDU, bool& aOut);
|
|
|
|
nsresult
|
|
UnpackPDU(BluetoothDaemonPDU& aPDU, char& aOut);
|
|
|
|
nsresult
|
|
UnpackPDU(BluetoothDaemonPDU& aPDU, BluetoothA2dpAudioState& aOut);
|
|
|
|
nsresult
|
|
UnpackPDU(BluetoothDaemonPDU& aPDU, BluetoothA2dpConnectionState& aOut);
|
|
|
|
nsresult
|
|
UnpackPDU(BluetoothDaemonPDU& aPDU, BluetoothAclState& aOut);
|
|
|
|
inline nsresult
|
|
UnpackPDU(BluetoothDaemonPDU& aPDU, BluetoothAddress& aOut)
|
|
{
|
|
return aPDU.Read(aOut.mAddr, sizeof(aOut.mAddr));
|
|
}
|
|
|
|
nsresult
|
|
UnpackPDU(BluetoothDaemonPDU& aPDU, BluetoothAvrcpEvent& aOut);
|
|
|
|
nsresult
|
|
UnpackPDU(BluetoothDaemonPDU& aPDU, BluetoothAvrcpMediaAttribute& aOut);
|
|
|
|
nsresult
|
|
UnpackPDU(BluetoothDaemonPDU& aPDU, BluetoothAvrcpPlayerAttribute& aOut);
|
|
|
|
nsresult
|
|
UnpackPDU(BluetoothDaemonPDU& aPDU, BluetoothAvrcpPlayerSettings& aOut);
|
|
|
|
nsresult
|
|
UnpackPDU(BluetoothDaemonPDU& aPDU, BluetoothAvrcpRemoteFeature& aOut);
|
|
|
|
nsresult
|
|
UnpackPDU(BluetoothDaemonPDU& aPDU, BluetoothBondState& aOut);
|
|
|
|
inline nsresult
|
|
UnpackPDU(BluetoothDaemonPDU& aPDU, BluetoothDaemonPDUHeader& aOut)
|
|
{
|
|
nsresult rv = UnpackPDU(aPDU, aOut.mService);
|
|
if (NS_FAILED(rv)) {
|
|
return rv;
|
|
}
|
|
rv = UnpackPDU(aPDU, aOut.mOpcode);
|
|
if (NS_FAILED(rv)) {
|
|
return rv;
|
|
}
|
|
return UnpackPDU(aPDU, aOut.mLength);
|
|
}
|
|
|
|
nsresult
|
|
UnpackPDU(BluetoothDaemonPDU& aPDU, BluetoothTypeOfDevice& aOut);
|
|
|
|
nsresult
|
|
UnpackPDU(BluetoothDaemonPDU& aPDU, BluetoothHandsfreeAudioState& aOut);
|
|
|
|
nsresult
|
|
UnpackPDU(BluetoothDaemonPDU& aPDU, BluetoothHandsfreeCallHoldType& aOut);
|
|
|
|
nsresult
|
|
UnpackPDU(BluetoothDaemonPDU& aPDU, BluetoothHandsfreeConnectionState& aOut);
|
|
|
|
nsresult
|
|
UnpackPDU(BluetoothDaemonPDU& aPDU, BluetoothHandsfreeNRECState& aOut);
|
|
|
|
nsresult
|
|
UnpackPDU(BluetoothDaemonPDU& aPDU,
|
|
BluetoothHandsfreeVoiceRecognitionState& aOut);
|
|
|
|
nsresult
|
|
UnpackPDU(BluetoothDaemonPDU& aPDU, BluetoothHandsfreeVolumeType& aOut);
|
|
|
|
nsresult
|
|
UnpackPDU(BluetoothDaemonPDU& aPDU, BluetoothRemoteInfo& aOut);
|
|
|
|
inline nsresult
|
|
UnpackPDU(BluetoothDaemonPDU& aPDU, BluetoothRemoteName& aOut)
|
|
{
|
|
return aPDU.Read(aOut.mName, sizeof(aOut.mName));
|
|
}
|
|
|
|
nsresult
|
|
UnpackPDU(BluetoothDaemonPDU& aPDU, BluetoothProperty& aOut);
|
|
|
|
nsresult
|
|
UnpackPDU(BluetoothDaemonPDU& aPDU, BluetoothPropertyType& aOut);
|
|
|
|
nsresult
|
|
UnpackPDU(BluetoothDaemonPDU& aPDU, BluetoothScanMode& aOut);
|
|
|
|
nsresult
|
|
UnpackPDU(BluetoothDaemonPDU& aPDU, BluetoothServiceRecord& aOut);
|
|
|
|
nsresult
|
|
UnpackPDU(BluetoothDaemonPDU& aPDU, BluetoothSspVariant& aOut);
|
|
|
|
nsresult
|
|
UnpackPDU(BluetoothDaemonPDU& aPDU, BluetoothStatus& aOut);
|
|
|
|
inline nsresult
|
|
UnpackPDU(BluetoothDaemonPDU& aPDU, BluetoothUuid& aOut)
|
|
{
|
|
return aPDU.Read(aOut.mUuid, sizeof(aOut.mUuid));
|
|
}
|
|
|
|
nsresult
|
|
UnpackPDU(BluetoothDaemonPDU& aPDU, nsDependentCString& aOut);
|
|
|
|
/* |UnpackConversion| is a helper for convering unpacked values. Pass
|
|
* an instance of this structure to |UnpackPDU| to read a value from
|
|
* the PDU in the input type and convert it to the output type.
|
|
*/
|
|
template<typename Tin, typename Tout>
|
|
struct UnpackConversion {
|
|
UnpackConversion(Tout& aOut)
|
|
: mOut(aOut)
|
|
{ }
|
|
|
|
Tout& mOut;
|
|
};
|
|
|
|
template<typename Tin, typename Tout>
|
|
inline nsresult
|
|
UnpackPDU(BluetoothDaemonPDU& aPDU, const UnpackConversion<Tin, Tout>& aOut)
|
|
{
|
|
Tin in;
|
|
nsresult rv = UnpackPDU(aPDU, in);
|
|
if (NS_FAILED(rv)) {
|
|
return rv;
|
|
}
|
|
return Convert(in, aOut.mOut);
|
|
}
|
|
|
|
/* |UnpackArray| is a helper for unpacking arrays. Pass an instance
|
|
* of this structure as the second argument to |UnpackPDU| to unpack
|
|
* an array.
|
|
*/
|
|
template <typename T>
|
|
struct UnpackArray
|
|
{
|
|
UnpackArray(T* aData, size_t aLength)
|
|
: mData(aData)
|
|
, mLength(aLength)
|
|
{ }
|
|
|
|
UnpackArray(nsAutoArrayPtr<T>& aData, size_t aLength)
|
|
: mData(nullptr)
|
|
, mLength(aLength)
|
|
{
|
|
aData = new T[mLength];
|
|
mData = aData.get();
|
|
}
|
|
|
|
UnpackArray(nsAutoArrayPtr<T>& aData, size_t aSize, size_t aElemSize)
|
|
: mData(nullptr)
|
|
, mLength(aSize / aElemSize)
|
|
{
|
|
aData = new T[mLength];
|
|
mData = aData.get();
|
|
}
|
|
|
|
T* mData;
|
|
size_t mLength;
|
|
};
|
|
|
|
template<typename T>
|
|
inline nsresult
|
|
UnpackPDU(BluetoothDaemonPDU& aPDU, const UnpackArray<T>& aOut)
|
|
{
|
|
for (size_t i = 0; i < aOut.mLength; ++i) {
|
|
nsresult rv = UnpackPDU(aPDU, aOut.mData[i]);
|
|
if (NS_FAILED(rv)) {
|
|
return rv;
|
|
}
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
template<typename T>
|
|
inline nsresult
|
|
UnpackPDU(BluetoothDaemonPDU& aPDU, UnpackArray<T>& aOut)
|
|
{
|
|
for (size_t i = 0; i < aOut.mLength; ++i) {
|
|
nsresult rv = UnpackPDU(aPDU, aOut.mData[i]);
|
|
if (NS_FAILED(rv)) {
|
|
return rv;
|
|
}
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
template<>
|
|
inline nsresult
|
|
UnpackPDU<uint8_t>(BluetoothDaemonPDU& aPDU, const UnpackArray<uint8_t>& aOut)
|
|
{
|
|
/* Read raw bytes in one pass */
|
|
return aPDU.Read(aOut.mData, aOut.mLength);
|
|
}
|
|
|
|
template<typename T>
|
|
inline nsresult
|
|
UnpackPDU(BluetoothDaemonPDU& aPDU, nsTArray<T>& aOut)
|
|
{
|
|
for (typename nsTArray<T>::size_type i = 0; i < aOut.Length(); ++i) {
|
|
nsresult rv = UnpackPDU(aPDU, aOut[i]);
|
|
if (NS_FAILED(rv)) {
|
|
return rv;
|
|
}
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
/* |UnpackCString0| is a helper for unpacking 0-terminated C string,
|
|
* including the \0 character. Pass an instance of this structure
|
|
* as the first argument to |UnpackPDU| to unpack a string.
|
|
*/
|
|
struct UnpackCString0
|
|
{
|
|
UnpackCString0(nsCString& aString)
|
|
: mString(&aString)
|
|
{ }
|
|
|
|
nsCString* mString; // non-null by construction
|
|
};
|
|
|
|
/* This implementation of |UnpackPDU| unpacks a 0-terminated C string.
|
|
*/
|
|
nsresult
|
|
UnpackPDU(BluetoothDaemonPDU& aPDU, const UnpackCString0& aOut);
|
|
|
|
/* |UnpackString0| is a helper for unpacking 0-terminated C string,
|
|
* including the \0 character. Pass an instance of this structure
|
|
* as the first argument to |UnpackPDU| to unpack a C string and convert
|
|
* it to wide-character encoding.
|
|
*/
|
|
struct UnpackString0
|
|
{
|
|
UnpackString0(nsString& aString)
|
|
: mString(&aString)
|
|
{ }
|
|
|
|
nsString* mString; // non-null by construction
|
|
};
|
|
|
|
/* This implementation of |UnpackPDU| unpacks a 0-terminated C string
|
|
* and converts it to wide-character encoding.
|
|
*/
|
|
nsresult
|
|
UnpackPDU(BluetoothDaemonPDU& aPDU, const UnpackString0& aOut);
|
|
|
|
//
|
|
// Init operators
|
|
//
|
|
|
|
// |PDUInitOP| provides functionality for init operators that unpack PDUs.
|
|
class PDUInitOp
|
|
{
|
|
protected:
|
|
PDUInitOp(BluetoothDaemonPDU& aPDU)
|
|
: mPDU(&aPDU)
|
|
{ }
|
|
|
|
BluetoothDaemonPDU& GetPDU() const
|
|
{
|
|
return *mPDU; // cannot be nullptr
|
|
}
|
|
|
|
void WarnAboutTrailingData() const
|
|
{
|
|
size_t size = mPDU->GetSize();
|
|
|
|
if (MOZ_LIKELY(!size)) {
|
|
return;
|
|
}
|
|
|
|
uint8_t service, opcode;
|
|
uint16_t payloadSize;
|
|
mPDU->GetHeader(service, opcode, payloadSize);
|
|
|
|
BT_LOGR("Unpacked PDU of type (%x,%x) still contains %zu Bytes of data.",
|
|
service, opcode, size);
|
|
}
|
|
|
|
private:
|
|
BluetoothDaemonPDU* mPDU; // Hold pointer to allow for constant instances
|
|
};
|
|
|
|
// |UnpackPDUInitOp| is a general-purpose init operator for all variants
|
|
// of |BluetoothResultRunnable| and |BluetoothNotificationRunnable|. The
|
|
// call operators of |UnpackPDUInitOp| unpack a PDU into the supplied
|
|
// arguments.
|
|
class UnpackPDUInitOp MOZ_FINAL : private PDUInitOp
|
|
{
|
|
public:
|
|
UnpackPDUInitOp(BluetoothDaemonPDU& aPDU)
|
|
: PDUInitOp(aPDU)
|
|
{ }
|
|
|
|
nsresult operator () () const
|
|
{
|
|
WarnAboutTrailingData();
|
|
return NS_OK;
|
|
}
|
|
|
|
template<typename T1>
|
|
nsresult operator () (T1& aArg1) const
|
|
{
|
|
nsresult rv = UnpackPDU(GetPDU(), aArg1);
|
|
if (NS_FAILED(rv)) {
|
|
return rv;
|
|
}
|
|
WarnAboutTrailingData();
|
|
return NS_OK;
|
|
}
|
|
|
|
template<typename T1, typename T2>
|
|
nsresult operator () (T1& aArg1, T2& aArg2) const
|
|
{
|
|
BluetoothDaemonPDU& pdu = GetPDU();
|
|
|
|
nsresult rv = UnpackPDU(pdu, aArg1);
|
|
if (NS_FAILED(rv)) {
|
|
return rv;
|
|
}
|
|
rv = UnpackPDU(pdu, aArg2);
|
|
if (NS_FAILED(rv)) {
|
|
return rv;
|
|
}
|
|
WarnAboutTrailingData();
|
|
return NS_OK;
|
|
}
|
|
|
|
template<typename T1, typename T2, typename T3>
|
|
nsresult operator () (T1& aArg1, T2& aArg2, T3& aArg3) const
|
|
{
|
|
BluetoothDaemonPDU& pdu = GetPDU();
|
|
|
|
nsresult rv = UnpackPDU(pdu, aArg1);
|
|
if (NS_FAILED(rv)) {
|
|
return rv;
|
|
}
|
|
rv = UnpackPDU(pdu, aArg2);
|
|
if (NS_FAILED(rv)) {
|
|
return rv;
|
|
}
|
|
rv = UnpackPDU(pdu, aArg3);
|
|
if (NS_FAILED(rv)) {
|
|
return rv;
|
|
}
|
|
WarnAboutTrailingData();
|
|
return NS_OK;
|
|
}
|
|
|
|
template<typename T1, typename T2, typename T3, typename T4>
|
|
nsresult operator () (T1& aArg1, T2& aArg2, T3& aArg3, T4& aArg4) const
|
|
{
|
|
BluetoothDaemonPDU& pdu = GetPDU();
|
|
|
|
nsresult rv = UnpackPDU(pdu, aArg1);
|
|
if (NS_FAILED(rv)) {
|
|
return rv;
|
|
}
|
|
rv = UnpackPDU(pdu, aArg2);
|
|
if (NS_FAILED(rv)) {
|
|
return rv;
|
|
}
|
|
rv = UnpackPDU(pdu, aArg3);
|
|
if (NS_FAILED(rv)) {
|
|
return rv;
|
|
}
|
|
rv = UnpackPDU(pdu, aArg4);
|
|
if (NS_FAILED(rv)) {
|
|
return rv;
|
|
}
|
|
WarnAboutTrailingData();
|
|
return NS_OK;
|
|
}
|
|
|
|
template<typename T1, typename T2, typename T3, typename T4, typename T5>
|
|
nsresult operator () (T1& aArg1, T2& aArg2, T3& aArg3, T4& aArg4,
|
|
T5& aArg5) const
|
|
{
|
|
BluetoothDaemonPDU& pdu = GetPDU();
|
|
|
|
nsresult rv = UnpackPDU(pdu, aArg1);
|
|
if (NS_FAILED(rv)) {
|
|
return rv;
|
|
}
|
|
rv = UnpackPDU(pdu, aArg2);
|
|
if (NS_FAILED(rv)) {
|
|
return rv;
|
|
}
|
|
rv = UnpackPDU(pdu, aArg3);
|
|
if (NS_FAILED(rv)) {
|
|
return rv;
|
|
}
|
|
rv = UnpackPDU(pdu, aArg4);
|
|
if (NS_FAILED(rv)) {
|
|
return rv;
|
|
}
|
|
rv = UnpackPDU(pdu, aArg5);
|
|
if (NS_FAILED(rv)) {
|
|
return rv;
|
|
}
|
|
WarnAboutTrailingData();
|
|
return NS_OK;
|
|
}
|
|
};
|
|
|
|
END_BLUETOOTH_NAMESPACE
|
|
|
|
#endif
|