int timedwait(int msec) {
struct timespec ts;
msec2timespec(msec, ts);
int retval = pthread_cond_timedwait(&cond_, &mutex_.mutex_, &ts);
if (retval) {
errno = retval;
return -1;
}
return 0;
}
tssub_options parse_tssub_args(int argc, char* argv[]) {
tssub_options opt;
po::options_description desc("Available options for <tssub> are");
desc.add_options()
("help", "produce help message")
("samples", po::value<unsigned int>(), "the number of samples that will be read")
("period", po::value<long long>(), "the polling period (in milli-sec > 0)")
("default", "runs the application with samples=1000 and period=1sec")
;
try {
po::variables_map vm;
po::store(po::parse_command_line(argc, argv, desc), vm);
po::notify(vm);
if (vm.count("help") || argc == 1) {
std::cout << desc << "\n";
exit(-1);
}
if (vm.count("samples")) {
opt.samples = vm["samples"].as<unsigned int>();
}
if (vm.count("period")) {
long long period =
vm["period"].as<long long>();
if (period < 0)
throw "period has to be >= 0";
opt.period = msec2timespec(period);
}
if (vm.count("default")) {
opt = {
DEFAULT_SAMPLE_NUM,
{0, ONE_SECOND-1}
};
}
}
catch(...) {
std::cout << desc << std::endl;
throw;
}
return opt;
}
tspub_options parse_tspub_args(int argc, char* argv[]) {
tspub_options opt;
po::options_description desc("Available options for <tspub> are");
desc.add_options()
("help", "produce help message")
("id", po::value<unsigned int>(), "the (non-negative) integer representing the sensor ID")
("scale", po::value<char>(), "the sensor temperature scale (C = CELSIUS, F = FAHRENHEIT, K = KELVIN)")
("samples", po::value<unsigned int>(), "the (non-negative) number of samples that will be read")
("period", po::value<long long>(), "the polling period (in milli-sec > 0)")
("T0", po::value<float>(), "Temperature reference point")
("deltaT", po::value<float>(), "Temperature variation interval")
("H0", po::value<float>(), "Humidity reference point")
("deltaH", po::value<float>(), "Humidity variation interval")
("default", "runs the application with id=0, scale=C, samples=1000, period=1sec, T0=25, deltaT=15, H0=0.5, deltaH=0.2")
;
try {
po::variables_map vm;
po::store(po::parse_command_line(argc, argv, desc), vm);
po::notify(vm);
if (vm.count("help") || argc == 1) {
std::cout << desc << "\n";
exit(-1);
}
if (vm.count("id")) {
opt.id = vm["id"].as<unsigned int>();
}
if (vm.count("scale")) {
char s = vm["scale"].as<char>();
opt.scale = char2tempscale(s);
}
if (vm.count("samples")) {
opt.samples = vm["samples"].as<unsigned int>();
}
if (vm.count("period")) {
long long period =
vm["period"].as<long long>();
if (period < 0)
throw "period has to be >= 0";
opt.period = msec2timespec(period);
}
if (vm.count("T0")) {
opt.t0 = vm["T0"].as<float>();
}
if (vm.count("deltaT")) {
opt.dt = vm["deltaT"].as<float>();
}
if (vm.count("H0")) {
opt.h0 = vm["H0"].as<float>();
}
if (vm.count("deltaH")) {
opt.dh = vm["deltaH"].as<float>();
}
if (vm.count("default")) {
opt = {
DEFAULT_SENSOR_ID,
DEFAULT_TEMP_SCALE,
DEFAULT_SAMPLE_NUM,
{0, ONE_SECOND-1},
T0,
DT,
H0,
DH
};
}
}
catch(...) {
std::cout << desc << std::endl;
throw;
}
return opt;
}
