epics::pvAccess::MonitorElement::Ref Class Reference

A (single ownership) smart pointer to extract a MonitorElement from a Monitor queue. More...

#include <client/pv/monitor.h>

Public Member Functions
	Ref (Monitor &M)
	Ref (const Monitor::shared_pointer &M)
void	swap (Ref &o)
MonitorElementPtr	letGo ()
	analogous to auto_ptr<>::release() but given a different name to avoid being confused with Monitor::release()
void	attach (Monitor &M)
void	attach (const Monitor::shared_pointer &M)
bool	next ()
void	reset ()
Ref &	operator++ ()
	operator hidden_bool_type () const
MonitorElement *	operator-> ()
MonitorElement &	operator* ()
MonitorElement *	get ()
bool	operator== (const Ref &o) const
bool	operator!= (const Ref &o) const

Detailed Description

A (single ownership) smart pointer to extract a MonitorElement from a Monitor queue.

To fetch a single element

epics::pvAccess::Monitor::shared_pointer mon(....);
epics::pvAccess::MonitorElement::Ref elem(mon);
if(elem) {
   // do something with element
   assert(elem->pvStructurePtr->getSubField("foo"));
} else {
   // queue was empty
}

To fetch all available elements (c++11)

epics::pvAccess::Monitor::shared_pointer mon(....);
for(auto& elem : *mon) {
   assert(elem.pvStructurePtr->getSubField("foo"));
}

To fetch all available elements (c++98)

epics::pvAccess::Monitor::shared_pointer mon(....);
for(epics::pvAccess::MonitorElement::Ref it(mon); it; ++it) {
   MonitorElement& elem(*it);
   assert(elem.pvStructurePtr->getSubField("foo"));
}

Definition at line 146 of file monitor.h.

---

The documentation for this class was generated from the following file:

• client/pv/monitor.h