DDS_DataWriterQos Struct Reference

<<cert>> QoS policies supported by a DDS_DataWriter entity. More...

#include <dds_c_publication.h>

Data Fields
struct DDS_DeadlineQosPolicy	deadline
	Deadline policy, DEADLINE. More...
struct DDS_LivelinessQosPolicy	liveliness
	Liveliness policy, LIVELINESS. More...
struct DDS_HistoryQosPolicy	history
	History policy, HISTORY. More...
struct DDS_ResourceLimitsQosPolicy	resource_limits
	Resource limits policy, RESOURCE_LIMITS. More...
struct DDS_OwnershipQosPolicy	ownership
	Ownership policy, OWNERSHIP. More...
struct DDS_OwnershipStrengthQosPolicy	ownership_strength
	Ownership strength policy, OWNERSHIP_STRENGTH. More...
struct DDS_ReliabilityQosPolicy	reliability
	Reliability policy, RELIABILITY. More...
struct DDS_DurabilityQosPolicy	durability
	<<eXtension>> Durability policy, DURABILITY. More...
struct DDS_DataWriterProtocolQosPolicy	protocol
	<<eXtension>> DDS_DataWriter protocol policy, DATA_WRITER_PROTOCOL More...
struct DDS_TransportQosPolicy	transport
	Transport policy, TRANSPORT. Only unicast transports are supported. More...

Detailed Description

<<cert>> QoS policies supported by a DDS_DataWriter entity.

You must set certain members in a consistent manner: - DDS_DataWriterQos::DDS_HistoryQosPolicy::depth <= DDS_DataWriterQos::DDS_ResourceLimitsQosPolicy::max_samples_per_instance - DDS_DataWriterQos::DDS_ResourceLimitsQosPolicy::max_samples_per_instance <= DDS_DataWriterQos::DDS_ResourceLimitsQosPolicy::max_samples If any of the above are not true, DDS_DataWriter_set_qos and DDS_Publisher_set_default_datawriter_qos will fail with DDS_RETCODE_INCONSISTENT_POLICY and DDS_Publisher_create_datawriter and will return NULL.

Entity:

DDS_DataWriter

See Also

QoS Policies allowed ranges within each Qos.

Field Documentation

struct DDS_DeadlineQosPolicy DDS_DataWriterQos::deadline

Deadline policy, DEADLINE.

struct DDS_LivelinessQosPolicy DDS_DataWriterQos::liveliness

Liveliness policy, LIVELINESS.

struct DDS_HistoryQosPolicy DDS_DataWriterQos::history

History policy, HISTORY.

struct DDS_ResourceLimitsQosPolicy DDS_DataWriterQos::resource_limits

Resource limits policy, RESOURCE_LIMITS.

struct DDS_OwnershipQosPolicy DDS_DataWriterQos::ownership

Ownership policy, OWNERSHIP.

struct DDS_OwnershipStrengthQosPolicy DDS_DataWriterQos::ownership_strength

Ownership strength policy, OWNERSHIP_STRENGTH.

struct DDS_ReliabilityQosPolicy DDS_DataWriterQos::reliability

Reliability policy, RELIABILITY.

struct DDS_DurabilityQosPolicy DDS_DataWriterQos::durability

<<eXtension>> Durability policy, DURABILITY.

struct DDS_DataWriterProtocolQosPolicy DDS_DataWriterQos::protocol

<<eXtension>> DDS_DataWriter protocol policy, DATA_WRITER_PROTOCOL

struct DDS_TransportQosPolicy DDS_DataWriterQos::transport

Transport policy, TRANSPORT. Only unicast transports are supported.