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CWE-ou-minkata/Sources/Plasma/PubUtilLib/plNetGameLib/Private/plNglGame.cpp

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/*==LICENSE==*
CyanWorlds.com Engine - MMOG client, server and tools
Copyright (C) 2011 Cyan Worlds, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
Additional permissions under GNU GPL version 3 section 7
If you modify this Program, or any covered work, by linking or
combining it with any of RAD Game Tools Bink SDK, Autodesk 3ds Max SDK,
NVIDIA PhysX SDK, Microsoft DirectX SDK, OpenSSL library, Independent
JPEG Group JPEG library, Microsoft Windows Media SDK, or Apple QuickTime SDK
(or a modified version of those libraries),
containing parts covered by the terms of the Bink SDK EULA, 3ds Max EULA,
PhysX SDK EULA, DirectX SDK EULA, OpenSSL and SSLeay licenses, IJG
JPEG Library README, Windows Media SDK EULA, or QuickTime SDK EULA, the
licensors of this Program grant you additional
permission to convey the resulting work. Corresponding Source for a
non-source form of such a combination shall include the source code for
the parts of OpenSSL and IJG JPEG Library used as well as that of the covered
work.
You can contact Cyan Worlds, Inc. by email legal@cyan.com
or by snail mail at:
Cyan Worlds, Inc.
14617 N Newport Hwy
Mead, WA 99021
*==LICENSE==*/
/*****************************************************************************
*
* $/Plasma20/Sources/Plasma/PubUtilLib/plNetGameLib/Private/plNglGame.cpp
*
***/
#include "../Pch.h"
#pragma hdrstop
namespace Ngl { namespace Game {
/*****************************************************************************
*
* Private
*
***/
struct CliGmConn : AtomicRef {
LINK(CliGmConn) link;
CCritSect critsect;
AsyncSocket sock;
AsyncCancelId cancelId;
NetCli * cli;
NetAddress addr;
unsigned seq;
bool abandoned;
// ping
AsyncTimer * pingTimer;
unsigned pingSendTimeMs;
unsigned lastHeardTimeMs;
CliGmConn ();
~CliGmConn ();
void Send (const uintptr_t fields[], unsigned count);
};
//============================================================================
// JoinAgeRequestTrans
//============================================================================
struct JoinAgeRequestTrans : NetGameTrans {
FNetCliGameJoinAgeRequestCallback m_callback;
void * m_param;
// sent
unsigned m_ageMcpId;
Uuid m_accountUuid;
unsigned m_playerInt;
JoinAgeRequestTrans (
unsigned ageMcpId,
const Uuid & accountUuid,
unsigned playerInt,
FNetCliGameJoinAgeRequestCallback callback,
void * param
);
bool Send ();
void Post ();
bool Recv (
const uint8_t msg[],
unsigned bytes
);
};
//============================================================================
// RcvdPropagatedBufferTrans
//============================================================================
struct RcvdPropagatedBufferTrans : NetNotifyTrans {
unsigned bufferType;
unsigned bufferBytes;
uint8_t * bufferData;
RcvdPropagatedBufferTrans () : NetNotifyTrans(kGmRcvdPropagatedBufferTrans) {}
~RcvdPropagatedBufferTrans ();
void Post ();
};
//============================================================================
// RcvdGameMgrMsgTrans
//============================================================================
struct RcvdGameMgrMsgTrans : NetNotifyTrans {
unsigned bufferBytes;
uint8_t * bufferData;
RcvdGameMgrMsgTrans () : NetNotifyTrans(kGmRcvdGameMgrMsgTrans) {}
~RcvdGameMgrMsgTrans ();
void Post ();
};
/*****************************************************************************
*
* Private data
*
***/
enum {
kPerfConnCount,
kPingDisabled,
kNumPerf
};
static bool s_running;
static CCritSect s_critsect;
static LISTDECL(CliGmConn, link) s_conns;
static CliGmConn * s_active;
static FNetCliGameRecvBufferHandler s_bufHandler;
static FNetCliGameRecvGameMgrMsgHandler s_gameMgrMsgHandler;
static long s_perf[kNumPerf];
/*****************************************************************************
*
* Internal functions
*
***/
//===========================================================================
static unsigned GetNonZeroTimeMs () {
if (unsigned ms = TimeGetMs())
return ms;
return 1;
}
//============================================================================
static CliGmConn * GetConnIncRef_CS (const char tag[]) {
if (CliGmConn * conn = s_active)
if (conn->cli) {
conn->IncRef(tag);
return conn;
}
return nil;
}
//============================================================================
static CliGmConn * GetConnIncRef (const char tag[]) {
CliGmConn * conn;
s_critsect.Enter();
{
conn = GetConnIncRef_CS(tag);
}
s_critsect.Leave();
return conn;
}
//============================================================================
static void UnlinkAndAbandonConn_CS (CliGmConn * conn) {
s_conns.Unlink(conn);
conn->abandoned = true;
if (conn->cancelId) {
AsyncSocketConnectCancel(nil, conn->cancelId);
conn->cancelId = 0;
}
else if (conn->sock) {
AsyncSocketDisconnect(conn->sock, true);
}
else {
conn->DecRef("Lifetime");
}
}
//============================================================================
static bool ConnEncrypt (ENetError error, void * param) {
CliGmConn * conn = (CliGmConn *) param;
if (IS_NET_SUCCESS(error)) {
s_critsect.Enter();
{
SWAP(s_active, conn);
}
s_critsect.Leave();
}
return IS_NET_SUCCESS(error);
}
//============================================================================
static void NotifyConnSocketConnect (CliGmConn * conn) {
conn->TransferRef("Connecting", "Connected");
conn->cli = NetCliConnectAccept(
conn->sock,
kNetProtocolCli2Game,
true,
ConnEncrypt,
0,
nil,
conn
);
}
//============================================================================
static void NotifyConnSocketConnectFailed (CliGmConn * conn) {
bool notify;
s_critsect.Enter();
{
conn->cancelId = 0;
s_conns.Unlink(conn);
notify
= s_running
&& !conn->abandoned
&& (!s_active || conn == s_active);
if (conn == s_active)
s_active = nil;
}
s_critsect.Leave();
NetTransCancelByConnId(conn->seq, kNetErrTimeout);
conn->DecRef("Connecting");
conn->DecRef("Lifetime");
if (notify)
ReportNetError(kNetProtocolCli2Game, kNetErrConnectFailed);
}
//============================================================================
static void NotifyConnSocketDisconnect (CliGmConn * conn) {
bool notify;
s_critsect.Enter();
{
s_conns.Unlink(conn);
notify
= s_running
&& !conn->abandoned
&& (!s_active || conn == s_active);
if (conn == s_active)
s_active = nil;
}
s_critsect.Leave();
// Cancel all transactions in process on this connection.
NetTransCancelByConnId(conn->seq, kNetErrTimeout);
conn->DecRef("Connected");
conn->DecRef("Lifetime");
if (notify)
ReportNetError(kNetProtocolCli2Game, kNetErrDisconnected);
}
//============================================================================
static bool NotifyConnSocketRead (CliGmConn * conn, AsyncNotifySocketRead * read) {
// TODO: Only dispatch messages from the active game server
conn->lastHeardTimeMs = GetNonZeroTimeMs();
bool result = NetCliDispatch(conn->cli, read->buffer, read->bytes, nil);
read->bytesProcessed += read->bytes;
return result;
}
//============================================================================
static bool SocketNotifyCallback (
AsyncSocket sock,
EAsyncNotifySocket code,
AsyncNotifySocket * notify,
void ** userState
) {
bool result = true;
CliGmConn * conn;
switch (code) {
case kNotifySocketConnectSuccess:
conn = (CliGmConn *) notify->param;
*userState = conn;
conn->TransferRef("Connecting", "Connected");
bool abandoned;
s_critsect.Enter();
{
conn->sock = sock;
conn->cancelId = 0;
abandoned = conn->abandoned;
}
s_critsect.Leave();
if (abandoned)
AsyncSocketDisconnect(sock, true);
else
NotifyConnSocketConnect(conn);
break;
case kNotifySocketConnectFailed:
conn = (CliGmConn *) notify->param;
NotifyConnSocketConnectFailed(conn);
break;
case kNotifySocketDisconnect:
conn = (CliGmConn *) *userState;
NotifyConnSocketDisconnect(conn);
break;
case kNotifySocketRead:
conn = (CliGmConn *) *userState;
result = NotifyConnSocketRead(conn, (AsyncNotifySocketRead *) notify);
break;
}
return result;
}
//============================================================================
static void Connect (
const NetAddress & addr
) {
CliGmConn * conn = NEWZERO(CliGmConn);
conn->addr = addr;
conn->seq = ConnNextSequence();
conn->lastHeardTimeMs = GetNonZeroTimeMs();
conn->IncRef("Lifetime");
conn->IncRef("Connecting");
s_critsect.Enter();
{
while (CliGmConn * conn = s_conns.Head())
UnlinkAndAbandonConn_CS(conn);
s_conns.Link(conn);
}
s_critsect.Leave();
Cli2Game_Connect connect;
connect.hdr.connType = kConnTypeCliToGame;
connect.hdr.hdrBytes = sizeof(connect.hdr);
connect.hdr.buildId = BuildId();
connect.hdr.buildType = BUILD_TYPE_LIVE;
connect.hdr.branchId = BranchId();
connect.hdr.productId = ProductId();
connect.data.dataBytes = sizeof(connect.data);
AsyncSocketConnect(
&conn->cancelId,
addr,
SocketNotifyCallback,
conn,
&connect,
sizeof(connect),
0,
0
);
}
/*****************************************************************************
*
* CliGmConn
*
***/
//============================================================================
CliGmConn::CliGmConn () {
AtomicAdd(&s_perf[kPerfConnCount], 1);
}
//============================================================================
CliGmConn::~CliGmConn () {
if (cli)
NetCliDelete(cli, true);
AtomicAdd(&s_perf[kPerfConnCount], -1);
}
//============================================================================
void CliGmConn::Send (const uintptr_t fields[], unsigned count) {
critsect.Enter();
{
NetCliSend(cli, fields, count);
NetCliFlush(cli);
}
critsect.Leave();
}
/*****************************************************************************
*
* Cli2Game protocol
*
***/
//============================================================================
static bool Recv_PingReply (
const uint8_t msg[],
unsigned bytes,
void * param
) {
return true;
}
//============================================================================
static bool Recv_JoinAgeReply (
const uint8_t msg[],
unsigned bytes,
void * param
) {
const Game2Cli_JoinAgeReply & reply = *(const Game2Cli_JoinAgeReply *)msg;
if (sizeof(reply) != bytes)
return false;
NetTransRecv(reply.transId, msg, bytes);
return true;
}
//============================================================================
static bool Recv_PropagateBuffer (
const uint8_t msg[],
unsigned bytes,
void * param
) {
const Game2Cli_PropagateBuffer & reply = *(const Game2Cli_PropagateBuffer *)msg;
RcvdPropagatedBufferTrans * trans = NEW(RcvdPropagatedBufferTrans);
trans->bufferType = reply.type;
trans->bufferBytes = reply.bytes;
trans->bufferData = (uint8_t *)malloc(reply.bytes);
MemCopy(trans->bufferData, reply.buffer, reply.bytes);
NetTransSend(trans);
return true;
}
//============================================================================
static bool Recv_GameMgrMsg (
const uint8_t msg[],
unsigned bytes,
void * param
) {
const Game2Cli_GameMgrMsg & reply = *(const Game2Cli_GameMgrMsg *)msg;
RcvdGameMgrMsgTrans * trans = NEW(RcvdGameMgrMsgTrans);
trans->bufferBytes = reply.bytes;
trans->bufferData = (uint8_t *)malloc(reply.bytes);
MemCopy(trans->bufferData, reply.buffer, reply.bytes);
NetTransSend(trans);
return true;
}
//============================================================================
// Send/Recv protocol handler init
//============================================================================
#define MSG(s) kNetMsg_Cli2Game_##s
static NetMsgInitSend s_send[] = {
{ MSG(PingRequest), },
{ MSG(JoinAgeRequest), },
{ MSG(PropagateBuffer), },
{ MSG(GameMgrMsg), },
};
#undef MSG
#define MSG(s) kNetMsg_Game2Cli_##s, Recv_##s
static NetMsgInitRecv s_recv[] = {
{ MSG(PingReply) },
{ MSG(JoinAgeReply), },
{ MSG(PropagateBuffer), },
{ MSG(GameMgrMsg), },
};
#undef MSG
/*****************************************************************************
*
* JoinAgeRequestTrans
*
***/
//============================================================================
JoinAgeRequestTrans::JoinAgeRequestTrans (
unsigned ageMcpId,
const Uuid & accountUuid,
unsigned playerInt,
FNetCliGameJoinAgeRequestCallback callback,
void * param
) : NetGameTrans(kJoinAgeRequestTrans)
, m_ageMcpId(ageMcpId)
, m_accountUuid(accountUuid)
, m_playerInt(playerInt)
, m_callback(callback)
, m_param(param)
{
}
//============================================================================
bool JoinAgeRequestTrans::Send () {
if (!AcquireConn())
return false;
const uintptr_t msg[] = {
kCli2Game_JoinAgeRequest,
m_transId,
m_ageMcpId,
(uintptr_t) &m_accountUuid,
m_playerInt,
};
m_conn->Send(msg, arrsize(msg));
return true;
}
//============================================================================
void JoinAgeRequestTrans::Post () {
m_callback(
m_result,
m_param
);
}
//============================================================================
bool JoinAgeRequestTrans::Recv (
const uint8_t msg[],
unsigned bytes
) {
const Game2Cli_JoinAgeReply & reply = *(const Game2Cli_JoinAgeReply *) msg;
m_result = reply.result;
m_state = kTransStateComplete;
return true;
}
/*****************************************************************************
*
* RcvdPropagatedBufferTrans
*
***/
//============================================================================
RcvdPropagatedBufferTrans::~RcvdPropagatedBufferTrans () {
free(bufferData);
}
//============================================================================
void RcvdPropagatedBufferTrans::Post () {
if (s_bufHandler)
s_bufHandler(bufferType, bufferBytes, bufferData);
}
/*****************************************************************************
*
* RcvdGameMgrMsgTrans
*
***/
//============================================================================
RcvdGameMgrMsgTrans::~RcvdGameMgrMsgTrans () {
free(bufferData);
}
//============================================================================
void RcvdGameMgrMsgTrans::Post () {
if (s_gameMgrMsgHandler)
s_gameMgrMsgHandler((GameMsgHeader *)bufferData);
}
} using namespace Game;
/*****************************************************************************
*
* NetGameTrans
*
***/
//============================================================================
NetGameTrans::NetGameTrans (ETransType transType)
: NetTrans(kNetProtocolCli2Game, transType)
, m_conn(nil)
{
}
//============================================================================
NetGameTrans::~NetGameTrans () {
ReleaseConn();
}
//============================================================================
bool NetGameTrans::AcquireConn () {
if (!m_conn)
m_conn = GetConnIncRef("AcquireConn");
return m_conn != nil;
}
//============================================================================
void NetGameTrans::ReleaseConn () {
if (m_conn) {
m_conn->DecRef("AcquireConn");
m_conn = nil;
}
}
/*****************************************************************************
*
* Protected functions
*
***/
//============================================================================
void GameInitialize () {
s_running = true;
NetMsgProtocolRegister(
kNetProtocolCli2Game,
false,
s_send, arrsize(s_send),
s_recv, arrsize(s_recv),
kGameDhGValue,
BigNum(sizeof(kGameDhXData), kGameDhXData),
BigNum(sizeof(kGameDhNData), kGameDhNData)
);
}
//============================================================================
void GameDestroy (bool wait) {
s_running = false;
s_bufHandler = nil;
s_gameMgrMsgHandler = nil;
NetTransCancelByProtocol(
kNetProtocolCli2Game,
kNetErrRemoteShutdown
);
NetMsgProtocolDestroy(
kNetProtocolCli2Game,
false
);
s_critsect.Enter();
{
while (CliGmConn * conn = s_conns.Head())
UnlinkAndAbandonConn_CS(conn);
s_active = nil;
}
s_critsect.Leave();
if (!wait)
return;
while (s_perf[kPerfConnCount]) {
NetTransUpdate();
AsyncSleep(10);
}
}
//============================================================================
bool GameQueryConnected () {
bool result;
s_critsect.Enter();
{
if (nil != (result = s_active))
result &= (nil != s_active->cli);
}
s_critsect.Leave();
return result;
}
//============================================================================
unsigned GameGetConnId () {
unsigned connId;
s_critsect.Enter();
connId = (s_active) ? s_active->seq : 0;
s_critsect.Leave();
return connId;
}
//============================================================================
void GamePingEnable (bool enable) {
s_perf[kPingDisabled] = !enable;
}
} using namespace Ngl;
/*****************************************************************************
*
* Exported functions
*
***/
//============================================================================
void NetCliGameStartConnect (
const NetAddressNode & node
) {
NetAddress addr;
NetAddressFromNode(node, kNetDefaultClientPort, &addr);
Connect(addr);
}
//============================================================================
void NetCliGameDisconnect () {
s_critsect.Enter();
{
while (CliGmConn * conn = s_conns.Head())
UnlinkAndAbandonConn_CS(conn);
s_active = nil;
}
s_critsect.Leave();
}
//============================================================================
void NetCliGameJoinAgeRequest (
unsigned ageMcpId,
const Uuid & accountUuid,
unsigned playerInt,
FNetCliGameJoinAgeRequestCallback callback,
void * param
) {
JoinAgeRequestTrans * trans = NEWZERO(JoinAgeRequestTrans)(
ageMcpId,
accountUuid,
playerInt,
callback,
param
);
NetTransSend(trans);
}
//============================================================================
void NetCliGameSetRecvBufferHandler (
FNetCliGameRecvBufferHandler handler
) {
s_bufHandler = handler;
}
//============================================================================
void NetCliGamePropagateBuffer (
unsigned type,
unsigned bytes,
const uint8_t buffer[]
) {
CliGmConn * conn = GetConnIncRef("PropBuffer");
if (!conn)
return;
const uintptr_t msg[] = {
kCli2Game_PropagateBuffer,
type,
bytes,
(uintptr_t) buffer,
};
conn->Send(msg, arrsize(msg));
conn->DecRef("PropBuffer");
}
//============================================================================
void NetCliGameSetRecvGameMgrMsgHandler (FNetCliGameRecvGameMgrMsgHandler handler) {
s_gameMgrMsgHandler = handler;
}
//============================================================================
void NetCliGameSendGameMgrMsg (GameMsgHeader * msgHdr) {
CliGmConn * conn = GetConnIncRef("GameMgrMsg");
if (!conn)
return;
const uintptr_t msg[] = {
kCli2Game_GameMgrMsg,
msgHdr->messageBytes,
(uintptr_t) msgHdr,
};
conn->Send(msg, arrsize(msg));
conn->DecRef("GameMgrMsg");
}