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configurable process priority

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badaix 2015-07-30 19:51:07 +02:00
parent 389bc92b2f
commit 83d7ca8856
2 changed files with 107 additions and 88 deletions
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180
client/snapClient.cpp
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@ -61,104 +61,116 @@ PcmDevice getPcmDevice(const std::string& soundcard)
int main (int argc, char *argv[])
{
string soundcard;
string ip;
// int bufferMs;
size_t port;
size_t latency;
bool runAsDaemon;
bool listPcmDevices;
po::options_description desc("Allowed options");
desc.add_options()
("help,h", "produce help message")
("version,v", "show version number")
("list,l", po::bool_switch(&listPcmDevices)->default_value(false), "list pcm devices")
("ip,i", po::value<string>(&ip), "server IP")
("port,p", po::value<size_t>(&port)->default_value(98765), "server port")
("soundcard,s", po::value<string>(&soundcard)->default_value("default"), "index or name of the soundcard")
("daemon,d", po::bool_switch(&runAsDaemon)->default_value(false), "daemonize")
("latency", po::value<size_t>(&latency)->default_value(0), "latency")
;
po::variables_map vm;
po::store(po::parse_command_line(argc, argv, desc), vm);
po::notify(vm);
std::clog.rdbuf(new Log("snapclient", LOG_DAEMON));
if (vm.count("help"))
try
{
cout << desc << "\n";
return 1;
}
string soundcard;
string ip;
// int bufferMs;
size_t port;
size_t latency;
int runAsDaemon;
bool listPcmDevices;
if (vm.count("version"))
{
cout << "snapclient v" << VERSION << "\n"
<< "Copyright (C) 2014 BadAix (snapcast@badaix.de).\n"
<< "License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.\n"
<< "This is free software: you are free to change and redistribute it.\n"
<< "There is NO WARRANTY, to the extent permitted by law.\n\n"
<< "Written by Johannes M. Pohl.\n";
return 1;
}
po::options_description desc("Allowed options");
desc.add_options()
("help,h", "produce help message")
("version,v", "show version number")
("list,l", po::bool_switch(&listPcmDevices)->default_value(false), "list pcm devices")
("ip,i", po::value<string>(&ip), "server IP")
("port,p", po::value<size_t>(&port)->default_value(98765), "server port")
("soundcard,s", po::value<string>(&soundcard)->default_value("default"), "index or name of the soundcard")
("daemon,d", po::value<int>(&runAsDaemon)->implicit_value(-5), "daemonize, optional process priority [-20..19]")
("latency", po::value<size_t>(&latency)->default_value(0), "latency of the soundcard")
;
if (listPcmDevices)
{
vector<PcmDevice> pcmDevices = Player::pcm_list();
for (auto dev: pcmDevices)
po::variables_map vm;
po::store(po::parse_command_line(argc, argv, desc), vm);
po::notify(vm);
std::clog.rdbuf(new Log("snapclient", LOG_DAEMON));
if (vm.count("help"))
{
cout << dev.idx << ": " << dev.name << "\n"
<< dev.description << "\n\n";
cout << desc << "\n";
return 1;
}
return 1;
}
signal(SIGHUP, signal_handler);
signal(SIGTERM, signal_handler);
signal(SIGINT, signal_handler);
if (runAsDaemon)
{
daemonize("/var/run/snapclient.pid");
setpriority(PRIO_PROCESS, 0, -5);
logS(kLogNotice) << "daemon started" << std::endl;
}
PcmDevice pcmDevice = getPcmDevice(soundcard);
if (pcmDevice.idx == -1)
{
cout << "soundcard \"" << soundcard << "\" not found\n";
return 1;
}
if (!vm.count("ip"))
{
BrowseAvahi browseAvahi;
AvahiResult avahiResult;
while (!g_terminated)
if (vm.count("version"))
{
if (browseAvahi.browse("_snapcast._tcp", AVAHI_PROTO_INET, avahiResult, 5000))
cout << "snapclient v" << VERSION << "\n"
<< "Copyright (C) 2014 BadAix (snapcast@badaix.de).\n"
<< "License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.\n"
<< "This is free software: you are free to change and redistribute it.\n"
<< "There is NO WARRANTY, to the extent permitted by law.\n\n"
<< "Written by Johannes M. Pohl.\n";
return 1;
}
if (listPcmDevices)
{
vector<PcmDevice> pcmDevices = Player::pcm_list();
for (auto dev: pcmDevices)
{
ip = avahiResult.ip_;
port = avahiResult.port_;
std::cout << ip << ":" << port << "\n";
break;
cout << dev.idx << ": " << dev.name << "\n"
<< dev.description << "\n\n";
}
return 1;
}
signal(SIGHUP, signal_handler);
signal(SIGTERM, signal_handler);
signal(SIGINT, signal_handler);
if (vm.count("daemon"))
{
daemonize("/var/run/snapclient.pid");
if (runAsDaemon < -20)
runAsDaemon = -20;
else if (runAsDaemon > 19)
runAsDaemon = 10;
setpriority(PRIO_PROCESS, 0, runAsDaemon);
logS(kLogNotice) << "daemon started" << std::endl;
}
PcmDevice pcmDevice = getPcmDevice(soundcard);
if (pcmDevice.idx == -1)
{
cout << "soundcard \"" << soundcard << "\" not found\n";
return 1;
}
if (!vm.count("ip"))
{
BrowseAvahi browseAvahi;
AvahiResult avahiResult;
while (!g_terminated)
{
if (browseAvahi.browse("_snapcast._tcp", AVAHI_PROTO_INET, avahiResult, 5000))
{
ip = avahiResult.ip_;
port = avahiResult.port_;
std::cout << ip << ":" << port << "\n";
break;
}
}
}
}
Controller controller;
if (!g_terminated)
Controller controller;
if (!g_terminated)
{
controller.start(pcmDevice, ip, port, latency);
while(!g_terminated)
usleep(100*1000);
controller.stop();
}
}
catch (const std::exception& e)
{
controller.start(pcmDevice, ip, port, latency);
while(!g_terminated)
usleep(100*1000);
controller.stop();
logS(kLogErr) << "Exception: " << e.what() << std::endl;
}
daemonShutdown();
logS(kLogNotice) << "daemon terminated." << endl;
daemonShutdown();
return 0;
}