epics::pvDatabase::PVDatabase Class Reference

The interface for a database of PVRecords. More...

#include "pvDatabase.h"

Public Member Functions
	POINTER_DEFINITIONS (PVDatabase)
virtual	~PVDatabase ()
	Destructor. More...
PVRecordPtr	findRecord (std::string const &recordName)
bool	addRecord (PVRecordPtr const &record)
	Add a record. More...
bool	removeRecord (PVRecordPtr const &record)
	Remove a record. More...
epics::pvData::PVStringArrayPtr	getRecordNames ()
	Get the names of all the records in the database. More...

Static Public Member Functions
static PVDatabasePtr	getMaster ()
	Get the master database. More...

Friends
class	PVRecord

Detailed Description

The interface for a database of PVRecords.

Author

mrk

Definition at line 475 of file pvDatabase.h.

Constructor & Destructor Documentation

epics::pvDatabase::PVDatabase::~PVDatabase ( )

virtual

Destructor.

Definition at line 56 of file pvDatabase.cpp.

{
    if(DEBUG_LEVEL>0) cout << "PVDatabase::~PVDatabase()\n";
}

Member Function Documentation

bool epics::pvDatabase::PVDatabase::addRecord

(

PVRecordPtr const &

record

)

Add a record.

Parameters

record

The record to add.

Returns

true if record was added.

Definition at line 79 of file pvDatabase.cpp.

{
    if(record->getTraceLevel()>0) {
        cout << "PVDatabase::addRecord " << record->getRecordName() << endl;
    }
    epicsGuard<epics::pvData::Mutex> guard(mutex);
    string recordName = record->getRecordName();
    PVRecordMap::iterator iter = recordMap.find(recordName);
    if(iter!=recordMap.end()) {
         return false;
    }
    record->start();
    recordMap.insert(PVRecordMap::value_type(recordName,record));
    return true;
}

PVRecordPtr epics::pvDatabase::PVDatabase::findRecord

(

std::string const &

recordName

)

Find a record. An empty pointer is returned if the record is not in the database.

Parameters

recordName

The record to find.

Returns

The shared pointer.

Definition at line 69 of file pvDatabase.cpp.

{
    epicsGuard<epics::pvData::Mutex> guard(mutex);
    PVRecordMap::iterator iter = recordMap.find(recordName);
    if(iter!=recordMap.end()) {
         return (*iter).second;
    }
    return PVRecordPtr();
}

PVDatabasePtr epics::pvDatabase::PVDatabase::getMaster ( )

static

Get the master database.

Returns

The shared pointer.

Definition at line 38 of file pvDatabase.cpp.

{
    static bool firstTime = true;
    if(firstTime) {
        firstTime = false;
        pvDatabaseMaster = PVDatabasePtr(new PVDatabase());
        PVArrayPlugin::create();
        PVTimestampPlugin::create();
        PVDeadbandPlugin::create();
    }
    return pvDatabaseMaster;
}

PVStringArrayPtr epics::pvDatabase::PVDatabase::getRecordNames

(

)

Get the names of all the records in the database.

Returns

The names.

Definition at line 122 of file pvDatabase.cpp.

{
    epicsGuard<epics::pvData::Mutex> guard(mutex);
    PVStringArrayPtr xxx;
    PVStringArrayPtr pvStringArray = static_pointer_cast<PVStringArray>
        (getPVDataCreate()->createPVScalarArray(pvString));
    size_t len = recordMap.size();
    shared_vector<string> names(len);
    PVRecordMap::iterator iter;
    size_t i = 0;
    for(iter = recordMap.begin(); iter!=recordMap.end(); ++iter) {
        names[i++] = (*iter).first;
    }
    shared_vector<const string> temp(freeze(names));
    pvStringArray->replace(temp);
    return pvStringArray;
}

epics::pvDatabase::PVDatabase::POINTER_DEFINITIONS

(

PVDatabase

)

bool epics::pvDatabase::PVDatabase::removeRecord

(

PVRecordPtr const &

record

)

Remove a record.

Parameters

record

The record to remove.

Returns

true if record was removed.

Definition at line 108 of file pvDatabase.cpp.

{
    if(record->getTraceLevel()>0) {
        cout << "PVDatabase::removeRecord " << record->getRecordName() << endl;
    }
    epicsGuard<epics::pvData::Mutex> guard(mutex);
    PVRecordWPtr pvRecord = removeFromMap(record);
    if(pvRecord.use_count()!=0) {
        pvRecord.lock()->unlistenClients();
        return true;
    }
    return false;
}

Friends And Related Function Documentation

friend class PVRecord

friend

Definition at line 514 of file pvDatabase.h.

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

• modules/pvDatabase/src/pv/pvDatabase.h
• modules/pvDatabase/src/database/pvDatabase.cpp