SensorHandler.h File Reference

#include <nidas/Config.h>
#include "DSMSensor.h"
#include "Polled.h"
#include "SensorOpener.h"
#include "RemoteSerialListener.h"
#include <nidas/util/Thread.h>
#include <nidas/util/ThreadSupport.h>
#include <nidas/util/IOException.h>
#include <sys/time.h>
#include <vector>
#include <set>

Go to the source code of this file.

Classes
class	nidas::core::SensorHandler
	SensorHandler implements a DSMSensor event loop. More...
class	nidas::core::SensorHandler::PolledDSMSensor
class	nidas::core::SensorHandler::NotifyPipe

Namespaces
namespace	nidas
	Root namespace for the NCAR In-Situ Data Acquisition Software.
namespace	nidas::core
	The essential core classes of nidas.

Macros
#define	USE_NOTIFY_PIPE
	If this thread cannot block and then atomically catch a signal in its polling method then a pipe must be used to notify the polling loop of changes to the polled set of descriptors.

Macro Definition Documentation

USE_NOTIFY_PIPE

#define USE_NOTIFY_PIPE

If this thread cannot block and then atomically catch a signal in its polling method then a pipe must be used to notify the polling loop of changes to the polled set of descriptors.

A pipe is used in these situations:

1. polling method is epoll, but don't have epoll_pwait
2. polling method is poll, but don't have ppoll. otherwise a SIGUSR1 signal is sent to this thread.