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|
/*****************************************************************************
**
** Name: PeerToPeer.h
**
** Description: Communicate with a peer using NFC-DEP, LLCP, SNEP.
**
** Copyright (c) 2012, Broadcom Corp., All Rights Reserved.
** Proprietary and confidential.
**
*****************************************************************************/
#pragma once
#include "SyncEvent.h"
#include "NfcJniUtil.h"
#include <string>
extern "C"
{
#include "nfa_p2p_api.h"
#include "nfa_snep_api.h"
}
class P2pServer;
class P2pClient;
class NfaConn;
#define MAX_NFA_CONNS_PER_SERVER 5
/*****************************************************************************
**
** Name: PeerToPeer
**
** Description: Communicate with a peer using NFC-DEP, LLCP, SNEP.
**
*****************************************************************************/
class PeerToPeer
{
public:
typedef unsigned int tJNI_HANDLE;
/*******************************************************************************
**
** Function: PeerToPeer
**
** Description: Initialize member variables.
**
** Returns: None
**
*******************************************************************************/
PeerToPeer ();
/*******************************************************************************
**
** Function: ~PeerToPeer
**
** Description: Free all resources.
**
** Returns: None
**
*******************************************************************************/
~PeerToPeer ();
/*******************************************************************************
**
** Function: getInstance
**
** Description: Get the singleton PeerToPeer object.
**
** Returns: Singleton PeerToPeer object.
**
*******************************************************************************/
static PeerToPeer& getInstance();
/*******************************************************************************
**
** Function: initialize
**
** Description: Initialize member variables.
**
** Returns: None
**
*******************************************************************************/
void initialize ();
/*******************************************************************************
**
** Function: llcpActivatedHandler
**
** Description: Receive LLLCP-activated event from stack.
** nat: JVM-related data.
** activated: Event data.
**
** Returns: None
**
*******************************************************************************/
void llcpActivatedHandler (nfc_jni_native_data* nativeData, tNFA_LLCP_ACTIVATED& activated);
/*******************************************************************************
**
** Function: llcpDeactivatedHandler
**
** Description: Receive LLLCP-deactivated event from stack.
** nat: JVM-related data.
** deactivated: Event data.
**
** Returns: None
**
*******************************************************************************/
void llcpDeactivatedHandler (nfc_jni_native_data* nativeData, tNFA_LLCP_DEACTIVATED& deactivated);
/*******************************************************************************
**
** Function: connectionEventHandler
**
** Description: Receive events from the stack.
** event: Event code.
** eventData: Event data.
**
** Returns: None
**
*******************************************************************************/
void connectionEventHandler (UINT8 event, tNFA_CONN_EVT_DATA* eventData);
/*******************************************************************************
**
** Function: registerServer
**
** Description: Let a server start listening for peer's connection request.
** jniHandle: Connection handle.
** serviceName: Server's service name.
**
** Returns: True if ok.
**
*******************************************************************************/
bool registerServer (tJNI_HANDLE jniHandle, const char* serviceName);
/*******************************************************************************
**
** Function: deregisterServer
**
** Description: Stop a P2pServer from listening for peer.
**
** Returns: True if ok.
**
*******************************************************************************/
bool deregisterServer (tJNI_HANDLE jniHandle);
/*******************************************************************************
**
** Function: accept
**
** Description: Accept a peer's request to connect.
** serverJniHandle: Server's handle.
** connJniHandle: Connection handle.
** maxInfoUnit: Maximum information unit.
** recvWindow: Receive window size.
**
** Returns: True if ok.
**
*******************************************************************************/
bool accept (tJNI_HANDLE serverJniHandle, tJNI_HANDLE connJniHandle, int maxInfoUnit, int recvWindow);
/*******************************************************************************
**
** Function: createClient
**
** Description: Create a P2pClient object for a new out-bound connection.
** jniHandle: Connection handle.
** miu: Maximum information unit.
** rw: Receive window size.
**
** Returns: True if ok.
**
*******************************************************************************/
bool createClient (tJNI_HANDLE jniHandle, UINT16 miu, UINT8 rw);
/*******************************************************************************
**
** Function: connectConnOriented
**
** Description: Estabish a connection-oriented connection to a peer.
** jniHandle: Connection handle.
** serviceName: Peer's service name.
**
** Returns: True if ok.
**
*******************************************************************************/
bool connectConnOriented (tJNI_HANDLE jniHandle, const char* serviceName);
/*******************************************************************************
**
** Function: connectConnOriented
**
** Description: Estabish a connection-oriented connection to a peer.
** jniHandle: Connection handle.
** destinationSap: Peer's service access point.
**
** Returns: True if ok.
**
*******************************************************************************/
bool connectConnOriented (tJNI_HANDLE jniHandle, UINT8 destinationSap);
/*******************************************************************************
**
** Function: send
**
** Description: Send data to peer.
** jniHandle: Handle of connection.
** buffer: Buffer of data.
** bufferLen: Length of data.
**
** Returns: True if ok.
**
*******************************************************************************/
bool send (tJNI_HANDLE jniHandle, UINT8* buffer, UINT16 bufferLen);
/*******************************************************************************
**
** Function: receive
**
** Description: Receive data from peer.
** jniHandle: Handle of connection.
** buffer: Buffer to store data.
** bufferLen: Max length of buffer.
** actualLen: Actual length received.
**
** Returns: True if ok.
**
*******************************************************************************/
bool receive (tJNI_HANDLE jniHandle, UINT8* buffer, UINT16 bufferLen, UINT16& actualLen);
/*******************************************************************************
**
** Function: disconnectConnOriented
**
** Description: Disconnect a connection-oriented connection with peer.
** jniHandle: Handle of connection.
**
** Returns: True if ok.
**
*******************************************************************************/
bool disconnectConnOriented (tJNI_HANDLE jniHandle);
/*******************************************************************************
**
** Function: getRemoteMaxInfoUnit
**
** Description: Get peer's max information unit.
** jniHandle: Handle of the connection.
**
** Returns: Peer's max information unit.
**
*******************************************************************************/
UINT16 getRemoteMaxInfoUnit (tJNI_HANDLE jniHandle);
/*******************************************************************************
**
** Function: getRemoteRecvWindow
**
** Description: Get peer's receive window size.
** jniHandle: Handle of the connection.
**
** Returns: Peer's receive window size.
**
*******************************************************************************/
UINT8 getRemoteRecvWindow (tJNI_HANDLE jniHandle);
/*******************************************************************************
**
** Function: setP2pListenMask
**
** Description: Sets the p2p listen technology mask.
** p2pListenMask: the p2p listen mask to be set?
**
** Returns: None
**
*******************************************************************************/
void setP2pListenMask (tNFA_TECHNOLOGY_MASK p2pListenMask);
/*******************************************************************************
**
** Function: enableP2pListening
**
** Description: Start/stop polling/listening to peer that supports P2P.
** isEnable: Is enable polling/listening?
**
** Returns: None
**
*******************************************************************************/
void enableP2pListening (bool isEnable);
/*******************************************************************************
**
** Function: handleNfcOnOff
**
** Description: Handle events related to turning NFC on/off by the user.
** isOn: Is NFC turning on?
**
** Returns: None
**
*******************************************************************************/
void handleNfcOnOff (bool isOn);
/*******************************************************************************
**
** Function: getNextJniHandle
**
** Description: Get a new JNI handle.
**
** Returns: A new JNI handle.
**
*******************************************************************************/
tJNI_HANDLE getNewJniHandle ();
private:
static const int sMax = 10;
static PeerToPeer sP2p;
static const std::string sSnepServiceName;
static const std::string sNppServiceName;
UINT16 mRemoteWKS; // Peer's well known services
bool mIsP2pListening; // If P2P listening is enabled or not
tNFA_TECHNOLOGY_MASK mP2pListenTechMask; // P2P Listen mask
tJNI_HANDLE mNextJniHandle;
P2pServer *mServers [sMax];
P2pClient *mClients [sMax];
SyncEvent mSetTechEvent; // completion event for NFA_SetP2pListenTech()
SyncEvent mSnepDefaultServerStartStopEvent; // completion event for NFA_SnepStartDefaultServer(), NFA_SnepStopDefaultServer()
SyncEvent mSnepRegisterEvent; // completion event for NFA_SnepRegisterClient()
Mutex mDisconnectMutex; // synchronize the disconnect operation
Mutex mNewJniHandleMutex; // synchronize the creation of a new JNI handle
/*******************************************************************************
**
** Function: nfaServerCallback
**
** Description: Receive LLCP-related events from the stack.
** p2pEvent: Event code.
** eventData: Event data.
**
** Returns: None
**
*******************************************************************************/
static void nfaServerCallback (tNFA_P2P_EVT p2pEvent, tNFA_P2P_EVT_DATA *eventData);
/*******************************************************************************
**
** Function: nfaClientCallback
**
** Description: Receive LLCP-related events from the stack.
** p2pEvent: Event code.
** eventData: Event data.
**
** Returns: None
**
*******************************************************************************/
static void nfaClientCallback (tNFA_P2P_EVT p2pEvent, tNFA_P2P_EVT_DATA *eventData);
/*******************************************************************************
**
** Function: snepClientCallback
**
** Description: Receive SNEP-related events from the stack.
** snepEvent: Event code.
** eventData: Event data.
**
** Returns: None
**
*******************************************************************************/
static void snepClientCallback (tNFA_SNEP_EVT snepEvent, tNFA_SNEP_EVT_DATA *eventData);
/*******************************************************************************
**
** Function: ndefTypeCallback
**
** Description: Receive NDEF-related events from the stack.
** ndefEvent: Event code.
** eventData: Event data.
**
** Returns: None
**
*******************************************************************************/
static void ndefTypeCallback (tNFA_NDEF_EVT event, tNFA_NDEF_EVT_DATA *evetnData);
/*******************************************************************************
**
** Function: findServer
**
** Description: Find a PeerToPeer object by connection handle.
** nfaP2pServerHandle: Connectin handle.
**
** Returns: PeerToPeer object.
**
*******************************************************************************/
P2pServer *findServer (tNFA_HANDLE nfaP2pServerHandle);
/*******************************************************************************
**
** Function: findServer
**
** Description: Find a PeerToPeer object by connection handle.
** serviceName: service name.
**
** Returns: PeerToPeer object.
**
*******************************************************************************/
P2pServer *findServer (tJNI_HANDLE jniHandle);
/*******************************************************************************
**
** Function: findServer
**
** Description: Find a PeerToPeer object by service name
** serviceName: service name.
**
** Returns: PeerToPeer object.
**
*******************************************************************************/
P2pServer *findServer (const char *serviceName);
/*******************************************************************************
**
** Function: removeServer
**
** Description: Free resources related to a server.
** jniHandle: Connection handle.
**
** Returns: None
**
*******************************************************************************/
void removeServer (tJNI_HANDLE jniHandle);
/*******************************************************************************
**
** Function: removeConn
**
** Description: Free resources related to a connection.
** jniHandle: Connection handle.
**
** Returns: None
**
*******************************************************************************/
void removeConn (tJNI_HANDLE jniHandle);
/*******************************************************************************
**
** Function: createDataLinkConn
**
** Description: Establish a connection-oriented connection to a peer.
** jniHandle: Connection handle.
** serviceName: Peer's service name.
** destinationSap: Peer's service access point.
**
** Returns: True if ok.
**
*******************************************************************************/
bool createDataLinkConn (tJNI_HANDLE jniHandle, const char* serviceName, UINT8 destinationSap);
/*******************************************************************************
**
** Function: findClient
**
** Description: Find a PeerToPeer object with a client connection handle.
** nfaConnHandle: Connection handle.
**
** Returns: PeerToPeer object.
**
*******************************************************************************/
P2pClient *findClient (tNFA_HANDLE nfaConnHandle);
/*******************************************************************************
**
** Function: findClient
**
** Description: Find a PeerToPeer object with a client connection handle.
** jniHandle: Connection handle.
**
** Returns: PeerToPeer object.
**
*******************************************************************************/
P2pClient *findClient (tJNI_HANDLE jniHandle);
/*******************************************************************************
**
** Function: findClientCon
**
** Description: Find a PeerToPeer object with a client connection handle.
** nfaConnHandle: Connection handle.
**
** Returns: PeerToPeer object.
**
*******************************************************************************/
P2pClient *findClientCon (tNFA_HANDLE nfaConnHandle);
/*******************************************************************************
**
** Function: findConnection
**
** Description: Find a PeerToPeer object with a connection handle.
** nfaConnHandle: Connection handle.
**
** Returns: PeerToPeer object.
**
*******************************************************************************/
NfaConn *findConnection (tNFA_HANDLE nfaConnHandle);
/*******************************************************************************
**
** Function: findConnection
**
** Description: Find a PeerToPeer object with a connection handle.
** jniHandle: Connection handle.
**
** Returns: PeerToPeer object.
**
*******************************************************************************/
NfaConn *findConnection (tJNI_HANDLE jniHandle);
};
/*****************************************************************************
**
** Name: NfaConn
**
** Description: Store information about a connection related to a peer.
**
*****************************************************************************/
class NfaConn
{
public:
tNFA_HANDLE mNfaConnHandle; // NFA handle of the P2P connection
PeerToPeer::tJNI_HANDLE mJniHandle; // JNI handle of the P2P connection
UINT16 mMaxInfoUnit;
UINT8 mRecvWindow;
UINT16 mRemoteMaxInfoUnit;
UINT8 mRemoteRecvWindow;
SyncEvent mReadEvent; // event for reading
SyncEvent mCongEvent; // event for congestion
SyncEvent mDisconnectingEvent; // event for disconnecting
/*******************************************************************************
**
** Function: NfaConn
**
** Description: Initialize member variables.
**
** Returns: None
**
*******************************************************************************/
NfaConn();
};
/*****************************************************************************
**
** Name: P2pServer
**
** Description: Store information about an in-bound connection from a peer.
**
*****************************************************************************/
class P2pServer
{
public:
tNFA_HANDLE mNfaP2pServerHandle; // NFA p2p handle of local server
PeerToPeer::tJNI_HANDLE mJniHandle; // JNI Handle
SyncEvent mRegServerEvent; // for NFA_P2pRegisterServer()
SyncEvent mConnRequestEvent; // for accept()
std::string mServiceName;
NfaConn *mServerConn[MAX_NFA_CONNS_PER_SERVER];
/*******************************************************************************
**
** Function: P2pServer
**
** Description: Initialize member variables.
**
** Returns: None
**
*******************************************************************************/
P2pServer ();
/*******************************************************************************
**
** Function: findServerConnection
**
** Description: Find a P2pServer that has the handle.
** nfaConnHandle: NFA connection handle.
**
** Returns: P2pServer object.
**
*******************************************************************************/
NfaConn *findServerConnection (tNFA_HANDLE nfaConnHandle);
};
/*****************************************************************************
**
** Name: P2pClient
**
** Description: Store information about an out-bound connection to a peer.
**
*****************************************************************************/
class P2pClient
{
public:
tNFA_HANDLE mNfaP2pClientHandle; // NFA p2p handle of client
bool mIsConnecting; // Set true while connecting
NfaConn mClientConn;
SyncEvent mRegisteringEvent; // For client registration
SyncEvent mConnectingEvent; // for NFA_P2pConnectByName or Sap()
SyncEvent mSnepEvent; // To wait for SNEP completion
/*******************************************************************************
**
** Function: P2pClient
**
** Description: Initialize member variables.
**
** Returns: None
**
*******************************************************************************/
P2pClient ();
/*******************************************************************************
**
** Function: ~P2pClient
**
** Description: Free all resources.
**
** Returns: None
**
*******************************************************************************/
~P2pClient ();
};
|
