epics::pvData::PVScalarValue< T > Class Template Reference

Class that holds the data for each possible scalar type. More...

#include "pvData.h"

Inheritance diagram for epics::pvData::PVScalarValue< T >:

Collaboration diagram for epics::pvData::PVScalarValue< T >:

Public Types
typedef T	value_type
typedef T *	pointer
typedef const T *	const_pointer
Public Types inherited from epics::pvData::PVScalar
typedef PVScalar &	reference
typedef const PVScalar &	const_reference
Public Types inherited from epics::pvData::PVField
enum	{ isPVField =1 }

Public Member Functions
	POINTER_DEFINITIONS (PVScalarValue)
virtual	~PVScalarValue ()
storage_t::arg_type	get () const
void	put (typename storage_t::arg_type v)
virtual std::ostream &	dumpValue (std::ostream &o) const OVERRIDE
virtual void	operator>>= (T &value) const
virtual void	operator<<= (typename storage_t::arg_type value)
template<typename T1 >
T1	getAs () const
template<typename T1 >
void	putFrom (typename detail::ScalarStorageOps< T1 >::arg_type val)
void	putFrom (const AnyScalar &v)
virtual void	assign (const PVScalar &scalar) OVERRIDE FINAL
virtual void	copy (const PVScalar &from) OVERRIDE FINAL
virtual void	copyUnchecked (const PVScalar &from) OVERRIDE FINAL
virtual void	serialize (ByteBuffer *pbuffer, SerializableControl *pflusher) const OVERRIDE
virtual void	deserialize (ByteBuffer *pbuffer, DeserializableControl *pflusher) OVERRIDE FINAL
virtual void	getAs (AnyScalar &v) const OVERRIDE FINAL
virtual void	putFrom (const void *src, ScalarType stype) OVERRIDE FINAL
	Convert and assign. More...
template<>
const ScalarType	typeCode
template<>
void	serialize (ByteBuffer *pbuffer, SerializableControl *pflusher) const
template<>
void	deserialize (ByteBuffer *pbuffer, DeserializableControl *pflusher)
template<>
std::ostream &	dumpValue (std::ostream &o) const
	Some explicit specializations exist. More...
template<>
std::ostream &	dumpValue (std::ostream &o) const
template<>
std::ostream &	dumpValue (std::ostream &o) const
Public Member Functions inherited from epics::pvData::PVScalar
	POINTER_DEFINITIONS (PVScalar)
virtual	~PVScalar ()
const ScalarConstPtr	getScalar () const
template<typename T >
T	getAs () const
template<typename T >
void	putFrom (T val)
void	putFrom (const AnyScalar &v)
Public Member Functions inherited from epics::pvData::PVField
	POINTER_DEFINITIONS (PVField)
virtual	~PVField ()
const std::string &	getFieldName () const
std::string	getFullName () const
std::size_t	getFieldOffset () const
std::size_t	getNextFieldOffset () const
std::size_t	getNumberFields () const
bool	isImmutable () const
virtual void	setImmutable ()
const FieldConstPtr &	getField () const
PVStructure *	getParent ()
const PVStructure *	getParent () const
void	postPut ()
void	setPostHandler (PostHandlerPtr const &postHandler)
virtual bool	equals (PVField &pv)
void	copy (const PVField &from)
void	copyUnchecked (const PVField &from)
Public Member Functions inherited from epics::pvData::Serializable
virtual	~Serializable ()

Static Public Attributes
static const ScalarType	typeCode = pvBoolean
Static Public Attributes inherited from epics::pvData::PVField
static size_t	num_instances

Protected Member Functions
	PVScalarValue (ScalarConstPtr const &scalar)
virtual void	getAs (void *result, ScalarType rtype) const OVERRIDE FINAL
Protected Member Functions inherited from epics::pvData::PVScalar
	PVScalar (ScalarConstPtr const &scalar)
Protected Member Functions inherited from epics::pvData::PVField
PVField::shared_pointer	getPtrSelf ()
	PVField (FieldConstPtr field)
void	setParentAndName (PVStructure *parent, std::string const &fieldName)

Protected Attributes
storage_t	storage

Friends
class	PVDataCreate

Detailed Description

template<typename T>
class epics::pvData::PVScalarValue< T >

Class that holds the data for each possible scalar type.

Definition at line 54 of file pvData.h.

Member Typedef Documentation

template<typename T>

typedef const T* epics::pvData::PVScalarValue< T >::const_pointer

Definition at line 384 of file pvData.h.

template<typename T>

typedef T* epics::pvData::PVScalarValue< T >::pointer

Definition at line 383 of file pvData.h.

template<typename T>

typedef T epics::pvData::PVScalarValue< T >::value_type

Definition at line 382 of file pvData.h.

Constructor & Destructor Documentation

template<typename T >

epics::pvData::PVScalarValue< T >::~PVScalarValue ( )

virtual

Destructor

Definition at line 62 of file PVDataCreateFactory.cpp.

{}

template<typename T>

epics::pvData::PVScalarValue< T >::PVScalarValue ( ScalarConstPtr const &  scalar )

inlineexplicitprotected

Definition at line 444 of file pvData.h.

    : PVScalar(scalar), storage() {}

Member Function Documentation

template<typename T >

void epics::pvData::PVScalarValue< T >::assign ( const PVScalar &  scalar )

virtual

Implements epics::pvData::PVScalar.

Definition at line 83 of file PVDataCreateFactory.cpp.

{
    if(isImmutable())
        throw std::invalid_argument("destination is immutable");
    copyUnchecked(scalar);
}

template<typename T >

void epics::pvData::PVScalarValue< T >::copy ( const PVScalar &  from )

virtual

Implements epics::pvData::PVScalar.

Definition at line 91 of file PVDataCreateFactory.cpp.

{
    assign(from);
}

template<typename T >

void epics::pvData::PVScalarValue< T >::copyUnchecked ( const PVScalar &  from )

virtual

Implements epics::pvData::PVScalar.

Definition at line 97 of file PVDataCreateFactory.cpp.

{
    if(this==&from)
        return;
    T result;
    from.getAs((void*)&result, typeCode);
    put(result);
}

template<>

void epics::pvData::PVScalarValue< std::string >::deserialize ( ByteBuffer *  buffer, DeserializableControl *  flusher  )

virtual

Deserialize buffer.

Parameters

buffer	serialization buffer.
flusher	deserialization control.

Implements epics::pvData::Serializable.

Definition at line 128 of file PVDataCreateFactory.cpp.

{
    storage.value = SerializeHelper::deserializeString(pbuffer, pflusher);
    // TODO: check for violations of maxLength?
}

template<typename T >

void epics::pvData::PVScalarValue< T >::deserialize ( ByteBuffer *  buffer, DeserializableControl *  flusher  )

virtual

Deserialize buffer.

Parameters

buffer	serialization buffer.
flusher	deserialization control.

Implements epics::pvData::Serializable.

Definition at line 120 of file PVDataCreateFactory.cpp.

{
    pflusher->ensureData(sizeof(T));
    storage.value = pbuffer->GET(T);
}

template<typename T >

std::ostream & epics::pvData::PVScalarValue< T >::dumpValue ( std::ostream &  o ) const

virtual

Puts the PVField raw value to the stream.

Parameters

o	output stream.

Returns

The output stream.

Implements epics::pvData::PVField.

Reimplemented in epics::pvData::PVString.

Definition at line 65 of file PVDataCreateFactory.cpp.

{
    return o << get();
}

template<>

std::ostream & epics::pvData::PVScalarValue< int8 >::dumpValue ( std::ostream &  o ) const

inlinevirtual

Some explicit specializations exist.

Implements epics::pvData::PVField.

Definition at line 473 of file pvData.h.

{
    return o << static_cast<int>(get());
}

template<>

std::ostream & epics::pvData::PVScalarValue< uint8 >::dumpValue ( std::ostream &  o ) const

inlinevirtual

Puts the PVField raw value to the stream.

Parameters

o	output stream.

Returns

The output stream.

Implements epics::pvData::PVField.

Definition at line 479 of file pvData.h.

{
    return o << static_cast<unsigned int>(get());
}

template<>

std::ostream & epics::pvData::PVScalarValue< boolean >::dumpValue ( std::ostream &  o ) const

inlinevirtual

Puts the PVField raw value to the stream.

Parameters

o	output stream.

Returns

The output stream.

Implements epics::pvData::PVField.

Definition at line 485 of file pvData.h.

{
    return o << std::boolalpha << static_cast<bool>(get());
}

template<typename T>

storage_t::arg_type epics::pvData::PVScalarValue< T >::get ( ) const

inline

Get the value.

Returns

The value.

Definition at line 396 of file pvData.h.

{ return storage.value; }

template<typename T>

template<typename T1 >

T1 epics::pvData::PVScalarValue< T >::getAs ( ) const

inline

Definition at line 419 of file pvData.h.

                            {
        T1 result(castUnsafe<T1,T>(get()));
        return result;
    }

template<typename T>

virtual void epics::pvData::PVScalarValue< T >::getAs ( void *  result, ScalarType  rtype  ) const

inlineprotectedvirtual

Implements epics::pvData::PVScalar.

Definition at line 446 of file pvData.h.

    {
        const T src = get();
        castUnsafeV(1, rtype, result, typeCode, (const void*)&src);
    }

template<typename T>

virtual void epics::pvData::PVScalarValue< T >::getAs ( AnyScalar &  v ) const

inlinevirtual

Implements epics::pvData::PVScalar.

Definition at line 452 of file pvData.h.

    {
        v = get();
    }

template<typename T >

void epics::pvData::PVScalarValue< T >::operator<<= ( typename storage_t::arg_type  value )

virtual

Definition at line 77 of file PVDataCreateFactory.cpp.

{
    put(value);
}

template<typename T>

void epics::pvData::PVScalarValue< T >::operator>>= ( T &  value ) const

virtual

Definition at line 71 of file PVDataCreateFactory.cpp.

{
    value = get();
}

template<typename T>

epics::pvData::PVScalarValue< T >::POINTER_DEFINITIONS

(

PVScalarValue< T >

)

template<typename T>

void epics::pvData::PVScalarValue< T >::put ( typename storage_t::arg_type  v )

inline

Put a new value into the PVScalar.

Parameters

value

The value.

Definition at line 401 of file pvData.h.

                                                  {
        storage.store(v);
        PVField::postPut();
    }

template<typename T>

template<typename T1 >

void epics::pvData::PVScalarValue< T >::putFrom ( typename detail::ScalarStorageOps< T1 >::arg_type  val )

inline

Definition at line 425 of file pvData.h.

                                                                         {
        put(castUnsafe<T,T1>(val));
    }

template<typename T>

void epics::pvData::PVScalarValue< T >::putFrom ( const AnyScalar &  v )

inline

Definition at line 429 of file pvData.h.

                                            {
        // the template form of putFrom() hides the base class AnyScalar overload
        PVScalar::putFrom(v);
    }

template<typename T>

virtual void epics::pvData::PVScalarValue< T >::putFrom ( const void *  , ScalarType    )

inlinevirtual

Convert and assign.

Implements epics::pvData::PVScalar.

Definition at line 456 of file pvData.h.

    {
        T result;
        castUnsafeV(1, typeCode, (void*)&result, stype, src);
        put(result);
    }

template<>

void epics::pvData::PVScalarValue< std::string >::serialize ( ByteBuffer *  buffer, SerializableControl *  flusher  ) const

virtual

Serialize field into given buffer.

Parameters

buffer	serialization buffer.
flusher	flush interface.

Implements epics::pvData::Serializable.

Definition at line 114 of file PVDataCreateFactory.cpp.

                                         {
    SerializeHelper::serializeString(storage.value, pbuffer, pflusher);
}

template<typename T >

void epics::pvData::PVScalarValue< T >::serialize ( ByteBuffer *  buffer, SerializableControl *  flusher  ) const

virtual

Serialize field into given buffer.

Parameters

buffer	serialization buffer.
flusher	flush interface.

Implements epics::pvData::Serializable.

Reimplemented in epics::pvData::PVString.

Definition at line 107 of file PVDataCreateFactory.cpp.

                                         {
    pflusher->ensureBuffer(sizeof(T));
    pbuffer->put(storage.value);
}

template<>

const ScalarType epics::pvData::PVScalarValue< string >::typeCode

(

)

Definition at line 45 of file PVDataCreateFactory.cpp.

Friends And Related Function Documentation

template<typename T>

friend class PVDataCreate

friend

Definition at line 464 of file pvData.h.

Member Data Documentation

template<typename T>

storage_t epics::pvData::PVScalarValue< T >::storage

protected

Definition at line 465 of file pvData.h.

template<typename T>

const ScalarType epics::pvData::PVDouble::typeCode = pvBoolean

static

Definition at line 386 of file pvData.h.

---

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

• modules/pvData/src/pv/pvData.h
• modules/pvData/src/factory/PVDataCreateFactory.cpp