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c4df31892e
message over and over when getting updated by GCM. The problem occurred when one device had an un-ACKable initial message still in its queue. I call resendAll a lot, which caused that message to get resent to the other game which then replied without being able to ACK it so it remained to be sent again. This would continue until users moved forward in the game. The fix is to add a backoff timer to resendAll() so that it can't loop. The timer is reset when an ackable and new message is received, meaning there's been a change in what's available to resend. And since users calling resendAll manually expect it to do something, add a force param that ignores the backoff. seems to fix the problem (but needs a lot of testing.)
230 lines
7.1 KiB
C
230 lines
7.1 KiB
C
/* -*-mode: C; fill-column: 78; c-basic-offset: 4; -*- */
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/*
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* Copyright 2001-2009 by Eric House (xwords@eehouse.org). All rights
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* reserved.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#ifndef _COMMS_H_
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#define _COMMS_H_
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#include "comtypes.h"
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#include "mempool.h"
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#include "xwrelay.h"
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#include "server.h"
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EXTERN_C_START
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#define CHANNEL_NONE ((XP_PlayerAddr)0)
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#define CONN_ID_NONE 0L
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typedef XP_U32 MsgID; /* this is too big!!! PENDING */
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typedef XP_U8 XWHostID;
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typedef enum {
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COMMS_CONN_NONE /* I want errors on uninited case */
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,COMMS_CONN_IR
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,COMMS_CONN_IP_DIRECT
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,COMMS_CONN_RELAY
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,COMMS_CONN_BT
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,COMMS_CONN_SMS
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,COMMS_CONN_NTYPES
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} CommsConnType;
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typedef enum {
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COMMS_RELAYSTATE_UNCONNECTED
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, COMMS_RELAYSTATE_DENIED /* terminal; new game or reset required to
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fix */
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, COMMS_RELAYSTATE_CONNECT_PENDING
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, COMMS_RELAYSTATE_CONNECTED
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, COMMS_RELAYSTATE_RECONNECTED
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, COMMS_RELAYSTATE_ALLCONNECTED
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} CommsRelayState;
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#ifdef XWFEATURE_BLUETOOTH
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# define XW_BT_UUID "7be0d084-ff89-4d6d-9c78-594773a6f963"
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# define XW_BT_NAME "Crosswords"
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#endif
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/* on Palm BtLibDeviceAddressType is a 48-bit quantity. Linux's typeis the
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same size. Goal is something all platforms support */
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typedef struct XP_BtAddr { XP_U8 bits[6]; } XP_BtAddr;
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typedef struct XP_BtAddrStr { XP_UCHAR chars[18]; } XP_BtAddrStr;
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#ifdef COMMS_HEARTBEAT
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# define IF_CH(a) a,
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#else
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# define IF_CH(a)
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#endif
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#define MAX_HOSTNAME_LEN 63
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#define MAX_PHONE_LEN 31
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typedef struct _CommsAddrRec {
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CommsConnType conType;
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union {
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struct {
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XP_UCHAR hostName_ip[MAX_HOSTNAME_LEN + 1];
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XP_U32 ipAddr_ip; /* looked up from above */
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XP_U16 port_ip;
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} ip;
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struct {
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XP_UCHAR invite[MAX_INVITE_LEN + 1];
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XP_UCHAR hostName[MAX_HOSTNAME_LEN + 1];
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XP_U32 ipAddr; /* looked up from above */
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XP_U16 port;
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XP_Bool seeksPublicRoom;
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XP_Bool advertiseRoom;
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} ip_relay;
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struct {
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/* nothing? */
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XP_UCHAR foo; /* wince doesn't like nothing here */
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} ir;
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struct {
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/* guests can browse for the host to connect to */
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XP_UCHAR hostName[MAX_HOSTNAME_LEN + 1];
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XP_BtAddrStr btAddr;
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} bt;
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struct {
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XP_UCHAR phone[MAX_PHONE_LEN + 1];
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XP_U16 port;
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} sms;
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} u;
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} CommsAddrRec;
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typedef XP_S16 (*TransportSend)( const XP_U8* buf, XP_U16 len,
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const CommsAddrRec* addr,
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XP_U32 gameID, void* closure );
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#ifdef COMMS_HEARTBEAT
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typedef void (*TransportReset)( void* closure );
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#endif
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#ifdef XWFEATURE_RELAY
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typedef void (*RelayStatusProc)( void* closure, CommsRelayState newState );
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typedef void (*RelayConndProc)( void* closure, XP_UCHAR* const room,
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XP_Bool reconnect,
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XP_U16 devOrder, /* 1 means created room, etc. */
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XP_Bool allHere, XP_U16 nMissing );
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typedef void (*RelayErrorProc)( void* closure, XWREASON relayErr );
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typedef XP_Bool (*RelayNoConnProc)( const XP_U8* buf, XP_U16 len,
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const XP_UCHAR* relayID, void* closure );
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#endif
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typedef enum {
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COMMS_XPORT_FLAGS_NONE = 0
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,COMMS_XPORT_FLAGS_HASNOCONN = 1
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} CommsTransportFlags;
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#ifdef COMMS_XPORT_FLAGSPROC
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typedef XP_U32 (*FlagsProc)( void* closure );
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#endif
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typedef struct _TransportProcs {
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# ifdef COMMS_XPORT_FLAGSPROC
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FlagsProc getFlags;
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#else
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XP_U32 flags;
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#endif
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TransportSend send;
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#ifdef COMMS_HEARTBEAT
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TransportReset reset;
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#endif
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#ifdef XWFEATURE_RELAY
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RelayStatusProc rstatus;
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RelayConndProc rconnd;
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RelayErrorProc rerror;
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RelayNoConnProc sendNoConn;
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#endif
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void* closure;
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} TransportProcs;
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CommsCtxt* comms_make( MPFORMAL XW_UtilCtxt* util,
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XP_Bool isServer,
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XP_U16 nPlayersHere, XP_U16 nPlayersTotal,
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const TransportProcs* procs
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#ifdef SET_GAMESEED
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,XP_U16 gameSeed
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#endif
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);
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void comms_reset( CommsCtxt* comms, XP_Bool isServer,
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XP_U16 nPlayersHere, XP_U16 nPlayersTotal );
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void comms_resetSame( CommsCtxt* comms );
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void comms_transportFailed( CommsCtxt* comms );
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void comms_destroy( CommsCtxt* comms );
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void comms_setConnID( CommsCtxt* comms, XP_U32 connID );
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/* "static" methods work when no comms present */
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void comms_getInitialAddr( CommsAddrRec* addr
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#ifdef XWFEATURE_RELAY
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, const XP_UCHAR* relayName
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, XP_U16 relayPort
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#endif
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);
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XP_Bool comms_checkAddr( DeviceRole role, const CommsAddrRec* addr,
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XW_UtilCtxt* util );
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void comms_getAddr( const CommsCtxt* comms, CommsAddrRec* addr );
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void comms_setAddr( CommsCtxt* comms, const CommsAddrRec* addr );
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void comms_getAddrs( const CommsCtxt* comms, CommsAddrRec addr[],
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XP_U16* nRecs );
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#ifdef XWFEATURE_RELAY
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XP_Bool comms_getRelayID( const CommsCtxt* comms, XP_UCHAR* buf, XP_U16* len );
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#endif
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CommsConnType comms_getConType( const CommsCtxt* comms );
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XP_Bool comms_getIsServer( const CommsCtxt* comms );
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CommsCtxt* comms_makeFromStream( MPFORMAL XWStreamCtxt* stream,
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XW_UtilCtxt* util,
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const TransportProcs* procs );
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void comms_start( CommsCtxt* comms );
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void comms_writeToStream( CommsCtxt* comms, XWStreamCtxt* stream,
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XP_U16 saveToken );
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void comms_saveSucceeded( CommsCtxt* comms, XP_U16 saveToken );
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XP_S16 comms_send( CommsCtxt* comms, XWStreamCtxt* stream );
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XP_Bool comms_resendAll( CommsCtxt* comms, XP_Bool force );
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XP_U16 comms_getChannelSeed( CommsCtxt* comms );
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#ifdef XWFEATURE_COMMSACK
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void comms_ackAny( CommsCtxt* comms );
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#endif
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XP_Bool comms_checkIncomingStream( CommsCtxt* comms, XWStreamCtxt* stream,
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const CommsAddrRec* addr );
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XP_Bool comms_checkComplete( const CommsAddrRec* const addr );
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XP_Bool comms_canChat( const CommsCtxt* comms );
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XP_Bool comms_isConnected( const CommsCtxt* const comms );
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# ifdef DEBUG
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void comms_getStats( CommsCtxt* comms, XWStreamCtxt* stream );
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const char* ConnType2Str( CommsConnType typ );
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const char* CommsRelayState2Str( CommsRelayState state );
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const char* XWREASON2Str( XWREASON reason );
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# endif
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EXTERN_C_END
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#endif /* _COMMS_H_ */
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