void RS485::openDevice()
{
try
{
if(_fileDescriptor->descriptor != -1) closeDevice();
_lockfile = "/var/lock" + _settings->device.substr(_settings->device.find_last_of('/')) + ".lock";
int lockfileDescriptor = open(_lockfile.c_str(), O_WRONLY | O_EXCL | O_CREAT, S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH);
if(lockfileDescriptor == -1)
{
if(errno != EEXIST)
{
_out.printCritical("Couldn't create lockfile " + _lockfile + ": " + strerror(errno));
return;
}
int processID = 0;
std::ifstream lockfileStream(_lockfile.c_str());
lockfileStream >> processID;
if(getpid() != processID && kill(processID, 0) == 0)
{
_out.printCritical("CRC RS485 device is in use: " + _settings->device);
return;
}
unlink(_lockfile.c_str());
lockfileDescriptor = open(_lockfile.c_str(), O_WRONLY | O_EXCL | O_CREAT, S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH);
if(lockfileDescriptor == -1)
{
_out.printCritical("Couldn't create lockfile " + _lockfile + ": " + strerror(errno));
return;
}
}
dprintf(lockfileDescriptor, "%10i", getpid());
close(lockfileDescriptor);
//std::string chmod("chmod 666 " + _lockfile);
//system(chmod.c_str());
_fileDescriptor = _bl->fileDescriptorManager.add(open(_settings->device.c_str(), O_RDWR | O_NOCTTY | O_NDELAY ));
if(_fileDescriptor->descriptor == -1)
{
_out.printCritical("Couldn't open CRC RS485 device \"" + _settings->device + "\": " + strerror(errno));
return;
}
setupDevice();
}
catch(const std::exception& ex)
{
_out.printEx(__FILE__, __LINE__, __PRETTY_FUNCTION__, ex.what());
}
catch(BaseLib::Exception& ex)
{
_out.printEx(__FILE__, __LINE__, __PRETTY_FUNCTION__, ex.what());
}
catch(...)
{
_out.printEx(__FILE__, __LINE__, __PRETTY_FUNCTION__);
}
}
void TICC1100::openDevice()
{
try
{
if(_fileDescriptor->descriptor != -1) closeDevice();
_lockfile = GD::bl->settings.lockFilePath() + "LCK.." + _settings->device.substr(_settings->device.find_last_of('/') + 1);
int lockfileDescriptor = open(_lockfile.c_str(), O_WRONLY | O_EXCL | O_CREAT, S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH);
if(lockfileDescriptor == -1)
{
if(errno != EEXIST)
{
_out.printCritical("Couldn't create lockfile " + _lockfile + ": " + strerror(errno));
return;
}
int processID = 0;
std::ifstream lockfileStream(_lockfile.c_str());
lockfileStream >> processID;
if(getpid() != processID && kill(processID, 0) == 0)
{
_out.printCritical("Rf device is in use: " + _settings->device);
return;
}
unlink(_lockfile.c_str());
lockfileDescriptor = open(_lockfile.c_str(), O_WRONLY | O_EXCL | O_CREAT, S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH);
if(lockfileDescriptor == -1)
{
_out.printCritical("Couldn't create lockfile " + _lockfile + ": " + strerror(errno));
return;
}
}
dprintf(lockfileDescriptor, "%10i", getpid());
close(lockfileDescriptor);
_fileDescriptor = _bl->fileDescriptorManager.add(open(_settings->device.c_str(), O_RDWR | O_NONBLOCK));
usleep(1000);
if(_fileDescriptor->descriptor == -1)
{
_out.printCritical("Couldn't open rf device \"" + _settings->device + "\": " + strerror(errno));
return;
}
setupDevice();
}
catch(const std::exception& ex)
{
_out.printEx(__FILE__, __LINE__, __PRETTY_FUNCTION__, ex.what());
}
catch(BaseLib::Exception& ex)
{
_out.printEx(__FILE__, __LINE__, __PRETTY_FUNCTION__, ex.what());
}
catch(...)
{
_out.printEx(__FILE__, __LINE__, __PRETTY_FUNCTION__);
}
}
