dds::sub::status::SampleState Class Reference

Class to hold SampleState information. More...

#include "DataState.hpp"

Inherits std::bitset< Bits >.

Public Types
typedef std::bitset< OMG_DDS_STATE_BIT_COUNT >	MaskType

Public Member Functions
	SampleState ()
	SampleState (const MaskType &src)
	SampleState (const SampleState &src)
	SampleState (uint32_t i)

Static Public Member Functions
static const SampleState	any ()
static const SampleState	not_read ()
static const SampleState	read ()

Detailed Description

Class to hold SampleState information.

For each sample, the Data Distribution Service internally maintains a sample_state specific to each DataReader. The sample_state can either be READ_SAMPLE_STATE or NOT_READ_SAMPLE_STATE.

• read
  • The DataReader has already accessed that sample by means of read. Had the sample been accessed by take it would no longer be available to the DataReader.
• not_read
  • The DataReader has not accessed that sample before.

See also

SampleInfo for more information

Definition at line 57 of file DataState.hpp.

Member Typedef Documentation

MaskType

typedef std::bitset<OMG_DDS_STATE_BIT_COUNT> dds::sub::status::SampleState::MaskType

Convenience typedef for std::bitset<OMG_DDS_STATE_BIT_COUNT>.

Definition at line 63 of file DataState.hpp.

Constructor & Destructor Documentation

SampleState() [1/4]

dds::sub::status::SampleState::SampleState

(

)

Construct a SampleState with default MaskType.

SampleState() [2/4]

dds::sub::status::SampleState::SampleState ( uint32_t  i )

explicit

Construct a SampleState with MaskType of i.

Parameters

i

MaskType

SampleState() [3/4]

dds::sub::status::SampleState::SampleState

(

const SampleState &

src

)

Copy constructor. Construct a SampleState with existing SampleState.

Parameters

src	the SampleState to copy from

SampleState() [4/4]

dds::sub::status::SampleState::SampleState

(

const MaskType &

src

)

Construct a SampleState with existing MaskType.

Parameters

src	the MaskType to copy from

Member Function Documentation

any()

static const SampleState dds::sub::status::SampleState::any ( )

inlinestatic

Get any SampleState.

Either the sample has already been read or not read.

Returns

any SampleState

not_read()

static const SampleState dds::sub::status::SampleState::not_read ( )

inlinestatic

Get the NOT_READ_SAMPLE_STATE.

not_read

• The DataReader has not accessed that sample before.

Returns

the not_read SampleState

read()

static const SampleState dds::sub::status::SampleState::read ( )

inlinestatic

Get the READ_SAMPLE_STATE.

read

• The DataReader has already accessed that sample by means of read. Had the sample been accessed by take it would no longer be available to the DataReader.

Returns

the read SampleState

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

• dds/sub/status/DataState.hpp