149 lines
4.3 KiB
C++
149 lines
4.3 KiB
C++
#ifndef PDBGROUP_H
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#define PDBGROUP_H
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#include <dbAccess.h>
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#include <dbEvent.h>
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#include <dbLock.h>
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#include <pv/pvAccess.h>
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#include "pvahelper.h"
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#include "pvif.h"
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#include "pdb.h"
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#include <shareLib.h>
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struct PDBGroupMonitor;
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void pdb_group_event(void *user_arg, struct dbChannel *chan,
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int eventsRemaining, struct db_field_log *pfl);
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struct epicsShareClass PDBGroupPV : public PDBPV
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{
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POINTER_DEFINITIONS(PDBGroupPV);
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weak_pointer weakself;
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inline shared_pointer shared_from_this() { return shared_pointer(weakself); }
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epicsMutex lock;
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bool pgatomic, monatomic;
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// get/put/monitor
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std::string name;
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struct Info {
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DBCH chan;
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std::string attachment;
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std::vector<size_t> triggers;
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DBManyLock locker; // lock only those channels being triggered
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std::auto_ptr<PVIF> pvif;
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DBEvent evt_VALUE, evt_PROPERTY;
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bool had_initial_VALUE, had_initial_PROPERTY;
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Info() :had_initial_VALUE(false), had_initial_PROPERTY(false) {}
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};
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epics::pvData::shared_vector<Info> members;
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DBManyLock locker; // all member channels
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// monitor only
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epics::pvData::BitSet scratch;
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epics::pvData::PVStructurePtr complete; // complete copy from subscription
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typedef std::set<std::tr1::shared_ptr<PDBGroupMonitor> > interested_t;
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interested_t interested;
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size_t initial_waits;
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static size_t num_instances;
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PDBGroupPV();
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virtual ~PDBGroupPV();
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virtual
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epics::pvAccess::Channel::shared_pointer
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connect(const std::tr1::shared_ptr<PDBProvider>& prov,
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const epics::pvAccess::ChannelRequester::shared_pointer& req);
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};
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struct epicsShareClass PDBGroupChannel : public BaseChannel,
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public std::tr1::enable_shared_from_this<PDBGroupChannel>
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{
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POINTER_DEFINITIONS(PDBGroupChannel);
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PDBGroupPV::shared_pointer pv;
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static size_t num_instances;
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PDBGroupChannel(const PDBGroupPV::shared_pointer& pv,
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const std::tr1::shared_ptr<epics::pvAccess::ChannelProvider>& prov,
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const epics::pvAccess::ChannelRequester::shared_pointer& req);
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virtual ~PDBGroupChannel();
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virtual epics::pvAccess::ChannelPut::shared_pointer createChannelPut(
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epics::pvAccess::ChannelPutRequester::shared_pointer const & requester,
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epics::pvData::PVStructure::shared_pointer const & pvRequest);
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virtual epics::pvData::Monitor::shared_pointer createMonitor(
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epics::pvData::MonitorRequester::shared_pointer const & requester,
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epics::pvData::PVStructure::shared_pointer const & pvRequest);
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virtual void printInfo(std::ostream& out);
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};
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struct PDBGroupPut : public epics::pvAccess::ChannelPut,
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public std::tr1::enable_shared_from_this<PDBGroupPut>
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{
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typedef epics::pvAccess::ChannelPutRequester requester_t;
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PDBGroupChannel::shared_pointer channel;
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requester_type::weak_pointer requester;
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bool atomic;
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epics::pvData::BitSetPtr changed;
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epics::pvData::PVStructurePtr pvf;
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std::vector<std::tr1::shared_ptr<PVIF> > pvif;
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static size_t num_instances;
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PDBGroupPut(const PDBGroupChannel::shared_pointer &channel,
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const requester_type::weak_pointer &requester,
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const epics::pvData::PVStructure::shared_pointer& pvReq);
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virtual ~PDBGroupPut();
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virtual void destroy() { pvif.clear(); channel.reset(); requester.reset(); }
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virtual void lock() {}
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virtual void unlock() {}
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virtual std::tr1::shared_ptr<epics::pvAccess::Channel> getChannel() { return channel; }
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virtual void cancel() {}
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virtual void lastRequest() {}
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virtual void put(
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epics::pvData::PVStructure::shared_pointer const & pvPutStructure,
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epics::pvData::BitSet::shared_pointer const & putBitSet);
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virtual void get();
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};
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struct PDBGroupMonitor : public BaseMonitor
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{
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POINTER_DEFINITIONS(PDBGroupMonitor);
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PDBGroupPV::shared_pointer pv;
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bool atomic;
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static size_t num_instances;
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PDBGroupMonitor(const PDBGroupPV::shared_pointer& pv,
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const requester_type::weak_pointer& requester,
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const epics::pvData::PVStructure::shared_pointer& pvReq);
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virtual ~PDBGroupMonitor();
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virtual void onStart();
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virtual void onStop();
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virtual void requestUpdate();
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virtual void destroy();
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};
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#endif // PDBGROUP_H
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