int sendMessageToClient(AllGameInfo agi, int clientId){
/* 向客户端发送消息 */
ServerMessage sm;
int fd;
int res;
char *fifoPath;
if(clientId == 1)
fifoPath = FIFO_CLIENT_1;
else
fifoPath = FIFO_CLIENT_2;
/* 生成消息 */
gameInfoToServerMessage(agi, &sm, clientId);
/* 打开端口 */
if((fd = openFifo(fifoPath, O_WRONLY)) == -1){
printf("open %s error\n", fifoPath);
exit(0);
}else{
printf("open %s over\n", fifoPath);
}
/* 发送消息 */
res = write(fd, &sm, sizeof(ServerMessage));
if(res == -1){
printf("write %s error\n",FIFO_CLIENT_1);
exit(-1);
}else{
printf("write bytes: %d\n", res);
}
/* 关闭端口 */
close(fd);
return 0;
}
void QGstreamerPlayerControl::setMedia(const QMediaContent &content, QIODevice *stream)
{
QMediaPlayer::State oldState = m_state;
m_state = QMediaPlayer::StoppedState;
m_session->stop();
if (m_bufferProgress != -1) {
m_bufferProgress = -1;
emit bufferStatusChanged(0);
}
if (m_stream) {
closeFifo();
disconnect(m_stream, SIGNAL(readyRead()), this, SLOT(writeFifo()));
m_stream = 0;
}
m_currentResource = content;
m_stream = stream;
m_seekToStartPending = false;
QNetworkRequest request;
if (m_stream) {
if (m_stream->isReadable() && openFifo()) {
request = QNetworkRequest(QUrl(QString(QLatin1String("fd://%1")).arg(m_fifoFd[0])));
}
} else if (!content.isNull()) {
request = content.canonicalRequest();
}
m_session->load(request);
if (m_fifoFd[1] >= 0) {
m_fifoCanWrite = true;
writeFifo();
}
if (!request.url().isEmpty()) {
if (m_mediaStatus != QMediaPlayer::LoadingMedia)
emit mediaStatusChanged(m_mediaStatus = QMediaPlayer::LoadingMedia);
m_session->pause();
} else {
if (m_mediaStatus != QMediaPlayer::NoMedia)
emit mediaStatusChanged(m_mediaStatus = QMediaPlayer::NoMedia);
setBufferProgress(0);
}
emit mediaChanged(m_currentResource);
if (m_state != oldState)
emit stateChanged(m_state);
}
SharedPtrNotNULL<std::fstream> createFifo(const boost::filesystem::path &p)
{
// fifo cannot exist yet
if( exists(p) )
throw ExceptionFilesystemIO(SYSTEM_SAVE_LOCATION, p, "exists", "element already exists");
// directory path must be sane
const path parent=Base::Filesystem::parentPath(p);
if( parent.empty()==false )
{
if( isDirectorySane(parent)==false )
throw ExceptionFilesystemIO(SYSTEM_SAVE_LOCATION, p, "isDirectorySane",
"path looks suspicious - refusing to create fifo");
}
// create new fifo
if( mkfifo( p.string().c_str(), 0644 )!=0 )
throw ExceptionFilesystemIO(SYSTEM_SAVE_LOCATION, p, "mkfifo", "unable to create fifo queue");
// opens fifo
return openFifo(p);
}
int main(int argc, char ** argv){
state = WAITING;
/* Mandatory arguments */
if( !argv[1] || !argv[2] || !argv[3] ) {
fprintf(stderr,"server [server->client fifo] [client->server fifo] [password file]\n");
exit(1);
}
/* Open the server->client fifo */
fprintf(stderr,"Opening server->client fifo...\n");
outputChannel = openFifo(argv[1]);
/* Open the client->server fifo */
fprintf(stderr,"Opening client->server fifo...\n");
inputChannel = openFifo(argv[2]);
do{
switch(state){
case WAITING : state = handshake();
if(state == ERROR) //handshake error
fprintf(stderr , "\n **** handshake falied **** \n\n");
else
fprintf(stderr , "\n **** handshake succeded **** \n\n");
break;
case HANDSHAKE : state = authentication();
break;
case AUTHENTICATED : state = keyExchange();
break;
case COMMUNICATION : state = communication();
break;
case CLOSING : state = closeConnection();
outputChannel = openFifo(argv[1]);
inputChannel = openFifo(argv[2]);
if(state == ERROR) //handshake error
fprintf(stderr , "\n **** closing falied **** \n\n");
else
fprintf(stderr , "\n **** closing succeded **** \n\n");
break;
case ERROR :
fprintf(stderr , "\nError during the communication, force shutodown of the client\n\n");
closeConnection();
state = WAITING;
outputChannel = openFifo(argv[1]);
inputChannel = openFifo(argv[2]);
fprintf(stderr , "\n **** closing succeded **** \n\n");
break; //close connection
default : break;
}
}while(1);
exit(0);
}
