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#include "Asterisk.h"
//there is no notification that there is someone in the queue
//but there is a status message you can check periodically...
std::vector<std::string> &split(const std::string &s, char delim, std::vector<std::string> &elems) {
std::stringstream ss(s);
std::string item;
while(std::getline(ss, item, delim)) {
elems.push_back(item);
}
return elems;
}
Asterisk::~Asterisk()
{
stopThread();
pclose(file);
printf("asterisk closed\n");
}
/*
Use a thread to track status with a blocking popen()
gameQ has 1 calls (max unlimited) in 'rrmemory' strategy (8s holdtime, 50s talktime), W:0, C:38, A:26, SL:36.8% within 0s
Members:
Game AGI (Local/9999@default) with penalty 1 (In use) has taken 31 calls (last was 5333 secs ago)
Callers:
1. SIP/sip_proxy-00000045 (wait: 0:06, prio: 0)
*/
int Asterisk::getUpdateTime(){
return ofGetElapsedTimeMillis()-cmdtime;
}
void Asterisk::threadedFunction(){
while( isThreadRunning() != 0 ){
//if (lock()) {
cmdtime=ofGetElapsedTimeMillis();
FILE *f = popen("ssh 80.93.22.22 'sudo /usr/sbin/asterisk -rx \"queue show gameQ\"'", "re"); //e ??
int fn=fileno(f);
char buf[1000];
ssize_t r = read(fn, buf, 1000);
pclose(f);
string msg=string(buf);
//received data is always a command ACKNOWLEDGEMENT
if (msg.compare(0,5,"gameQ")==0) {
vector<std::string> lines;
split(msg,'\n',lines);
queued=0;
for (int i=4;i<lines.size();i++) {
if (lines[i].compare(0,6," ")==0&&lines[i].compare(7,1,".")==0) queued++;
}
}
else {
printf("status err: %s\n",buf);
}
//unlock();
//}
ofSleepMillis(statusPollMillis);
}
}
void Asterisk::setup(string passcode,int millis){
udpConnection.Create();
udpConnection.Bind(5000);
udpConnection.SetNonBlocking(true);
cmd("ssh 80.93.22.22 'sudo /usr/sbin/asterisk -rx \"database put GAME passcode "+passcode+"\"'");
statusPollMillis=millis;
if (statusPollMillis>0) startThread(false, false); // blocking, verbose
}
void Asterisk::startGame(){
//if (lock()) {
if (state==ASTERISK_IDLE&&queued) {
cmd("ssh 80.93.22.22 'sudo /usr/sbin/asterisk -rx \"devstate change Custom:GAME NOT_INUSE\"'");
printf("Asterisk: attempting to dequeue\n");
}
//unlock();
//}
}
void Asterisk::endGame(string score){
printf("Asterisk: request hangup %s\n",playerCode.c_str());
if (state==ASTERISK_PLAYING) {
//cmd("ssh 80.93.22.22 'sudo /usr/sbin/asterisk -rx \"database put GAME statuscode "+score+"\"'");
string emsg="ssh 80.93.22.22 'sudo /usr/sbin/asterisk -rx \"hangup request "+playerCode+"\"'";
cmd(emsg);
printf("Asterisk: hanging up %s\n",playerCode.c_str());
}
}
void Asterisk::cmd(string s) {
//non blocking command for anync messages
//pclose(file); always closing before open crashes
//printf("open file\n");
file = popen(s.c_str(), "re"); //"e" seems necessary for non blocking but with it getting crash when dequeuing. can't seem to trace it
filenum=fileno(file);
fcntl(filenum, F_SETFL, O_NONBLOCK);
state=ASTERISK_WAITING;
}
void Asterisk::scmd(string s) {
//non blocking command for anync messages
//pclose(file); always closing before open crashes
//printf("open file\n");
file = popen(s.c_str(), "re"); //"e" seems necessary for non blocking but with it getting crash when dequeuing. can't seem to trace it
filenum=fileno(file);
fcntl(filenum, F_SETFL, O_NONBLOCK);
//printf("close file\n");
pclose(file); //is blocking!
}
/*Child process PID: 4265
Program received signal SIGABRT, Aborted.
In __GI_raise (sig=<optimized out>) at ../nptl/sysdeps/unix/sysv/linux/raise.c:64 ()
Cannot open file: /home/tim/workspace/VFxmas/vfg/iofclose.c
*/
int Asterisk::update(){
//capture stdin response from popen
if (state==ASTERISK_WAITING) {
char buf[100];
ssize_t r = read(filenum, buf, 1000);
//if (r == -1 && errno == EAGAIN)
//no data yet
//else
if (r > 0) {
//is it here?
//printf("close file\n");
pclose(file);
string msg=string(buf);
state=ASTERISK_IDLE;
//received data is always a command ACKNOWLEDGEMENT
//can never issue a new one until last one returns?
if (msg.compare(0,8,"Changing")==0) {
printf("player dequeued\n");
state=ASTERISK_STARTING;
}
else {
printf("stdin says: %s\n",buf);
}
}
}
//check udp messages, return new keypresses
char udpMessage[10000];
udpConnection.Receive(udpMessage,10000);
string msg=udpMessage;
if(msg!=""){
//printf("Asterisk: %s\n",msg.c_str());
if (msg.length()>3) {
//printf("status msg: %s\n",msg.c_str());
if (msg.substr(0,6)=="Hangup") {
state=ASTERISK_IDLE;
return ASTERISK_GAMEOVER;
}
if (msg.substr(0,5)=="Local"&&state==ASTERISK_STARTING) {
state=ASTERISK_PLAYING;
playerCode=msg.substr(0,msg.length()-1);
printf("Asterisk: game started: code %s\n",playerCode.c_str());
return ASTERISK_GAMESTARTED;
}
return 0;
}
else {
//message length of <3 is a key
if (state!=ASTERISK_PLAYING) state=ASTERISK_PLAYING; //catch missed game acknowledgement
return ofToInt(msg);
}
}
else return 0;
}
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