RTI Connext .NET API (legacy)  Version 6.1.2
DDS::DomainParticipantResourceLimitsQosPolicy Struct Reference

Various settings that configure how a DDS::DomainParticipant allocates and uses physical memory for internal resources, including the maximum sizes of various properties. More...

#include <managed_infrastructure.h>

Static Public Member Functions

static System::String ^ get_domainparticipantresourcelimits_qos_policy_name ()
 Stringified human-readable name for DDS::DomainParticipantResourceLimitsQosPolicy. More...
 

Public Attributes

AllocationSettings_t local_writer_allocation
 Allocation settings applied to local DataWriters. More...
 
AllocationSettings_t local_reader_allocation
 Allocation settings applied to local DataReaders. More...
 
AllocationSettings_t local_publisher_allocation
 Allocation settings applied to local Publisher. More...
 
AllocationSettings_t local_subscriber_allocation
 Allocation settings applied to local Subscriber. More...
 
AllocationSettings_t local_topic_allocation
 Allocation settings applied to local Topic. More...
 
AllocationSettings_t remote_writer_allocation
 Allocation settings applied to remote DataWriters. More...
 
AllocationSettings_t remote_reader_allocation
 Allocation settings applied to remote DataReaders. More...
 
AllocationSettings_t remote_participant_allocation
 Allocation settings applied to remote DomainParticipants. More...
 
AllocationSettings_t matching_writer_reader_pair_allocation
 Allocation settings applied to matching local writer and remote/local reader pairs. More...
 
AllocationSettings_t matching_reader_writer_pair_allocation
 Allocation settings applied to matching local reader and remote/local writer pairs. More...
 
AllocationSettings_t ignored_entity_allocation
 Allocation settings applied to ignored entities. More...
 
AllocationSettings_t content_filtered_topic_allocation
 Allocation settings applied to content filtered topic. More...
 
AllocationSettings_t content_filter_allocation
 Allocation settings applied to content filter. More...
 
AllocationSettings_t read_condition_allocation
 Allocation settings applied to read condition pool. More...
 
AllocationSettings_t query_condition_allocation
 Allocation settings applied to query condition pool. More...
 
AllocationSettings_t outstanding_asynchronous_sample_allocation
 Allocation settings applied to the maximum number of samples (from all DDS::DataWriter) waiting to be asynchronously written. More...
 
AllocationSettings_t flow_controller_allocation
 Allocation settings applied to flow controllers. More...
 
System::Int32 local_writer_hash_buckets
 Hash_Buckets settings applied to local DataWriters. More...
 
System::Int32 local_reader_hash_buckets
 Number of hash buckets for local DataReaders. More...
 
System::Int32 local_publisher_hash_buckets
 Number of hash buckets for local Publisher. More...
 
System::Int32 local_subscriber_hash_buckets
 Number of hash buckets for local Subscriber. More...
 
System::Int32 local_topic_hash_buckets
 Number of hash buckets for local Topic. More...
 
System::Int32 remote_writer_hash_buckets
 Number of hash buckets for remote DataWriters. More...
 
System::Int32 remote_reader_hash_buckets
 Number of hash buckets for remote DataReaders. More...
 
System::Int32 remote_participant_hash_buckets
 Number of hash buckets for remote DomainParticipants. More...
 
System::Int32 matching_writer_reader_pair_hash_buckets
 Number of hash buckets for matching local writer and remote/local reader pairs. More...
 
System::Int32 matching_reader_writer_pair_hash_buckets
 Number of hash buckets for matching local reader and remote/local writer pairs. More...
 
System::Int32 ignored_entity_hash_buckets
 Number of hash buckets for ignored entities. More...
 
System::Int32 content_filtered_topic_hash_buckets
 Number of hash buckets for content filtered topics. More...
 
System::Int32 content_filter_hash_buckets
 Number of hash buckets for content filters. More...
 
System::Int32 flow_controller_hash_buckets
 Number of hash buckets for flow controllers. More...
 
System::Int32 max_gather_destinations
 Maximum number of destinations per RTI Connext send. More...
 
System::Int32 participant_user_data_max_length
 Maximum length of user data in DDS::DomainParticipantQos and DDS::ParticipantBuiltinTopicData. More...
 
System::Int32 topic_data_max_length
 Maximum length of topic data in DDS::TopicQos, DDS::TopicBuiltinTopicData, DDS::PublicationBuiltinTopicData and DDS::SubscriptionBuiltinTopicData. More...
 
System::Int32 publisher_group_data_max_length
 Maximum length of group data in DDS::PublisherQos and DDS::PublicationBuiltinTopicData. More...
 
System::Int32 subscriber_group_data_max_length
 Maximum length of group data in DDS::SubscriberQos and DDS::SubscriptionBuiltinTopicData. More...
 
System::Int32 writer_user_data_max_length
 Maximum length of user data in DDS::DataWriterQos and DDS::PublicationBuiltinTopicData. More...
 
System::Int32 reader_user_data_max_length
 Maximum length of user data in DDS::DataReaderQos and DDS::SubscriptionBuiltinTopicData. More...
 
System::Int32 max_partitions
 Maximum number of partition name strings allowable in a DDS::PartitionQosPolicy. More...
 
System::Int32 max_partition_cumulative_characters
 Maximum number of combined characters allowable in all partition names in a DDS::PartitionQosPolicy. More...
 
System::Int32 type_code_max_serialized_length
 Maximum size of serialized string for type code. More...
 
System::Int32 type_object_max_serialized_length
 The maximum length, in bytes, that the buffer to serialize a TypeObject can consume. More...
 
System::Int32 serialized_type_object_dynamic_allocation_threshold
 A threshold, in bytes, for dynamic memory allocation for the serialized TypeObject. More...
 
System::Int32 type_object_max_deserialized_length
 The maximum number of bytes that a deserialized TypeObject can consume. More...
 
System::Int32 deserialized_type_object_dynamic_allocation_threshold
 A threshold, in bytes, for dynamic memory allocation for the deserialized TypeObject. More...
 
System::Int32 contentfilter_property_max_length
 This field is the maximum length of all data related to a Content-filtered topic. More...
 
System::Int32 channel_seq_max_length
 Maximum number of channels that can be specified in DDS::MultiChannelQosPolicy for MultiChannel DataWriters. More...
 
System::Int32 channel_filter_expression_max_length
 Maximum length of a channel DDS::ChannelSettings_t::filter_expression in a MultiChannel DataWriter. More...
 
System::Int32 participant_property_list_max_length
 Maximum number of properties associated with the DDS::DomainParticipant. More...
 
System::Int32 participant_property_string_max_length
 Maximum string length of the properties associated with the DDS::DomainParticipant. More...
 
System::Int32 writer_property_list_max_length
 Maximum number of properties associated with a DDS::DataWriter. More...
 
System::Int32 writer_property_string_max_length
 Maximum string length of the properties associated with a DDS::DataWriter. More...
 
System::Int32 reader_property_list_max_length
 Maximum number of properties associated with a DDS::DataReader. More...
 
System::Int32 reader_property_string_max_length
 Maximum string length of the properties associated with a DDS::DataReader. More...
 
System::Int32 max_endpoint_groups
 Maximum number of DDS::EndpointGroup_t allowable in a DDS::AvailabilityQosPolicy. More...
 
System::Int32 max_endpoint_group_cumulative_characters
 Maximum number of combined role_name characters allowed in all DDS::EndpointGroup_t in a DDS::AvailabilityQosPolicy. More...
 
System::Int32 transport_info_list_max_length
 Maximum number of installed transports to send and receive information about in DDS::ParticipantBuiltinTopicData::transport_info. More...
 
DomainParticipantResourceLimitsIgnoredEntityReplacementKind ignored_entity_replacement_kind
 Replacement policy for the ignored entities. It sets what entity can be replaced when resource limits set in DDS::DomainParticipantResourceLimitsQosPolicy::ignored_entity_allocation are reached. More...
 
AllocationSettings_t remote_topic_query_allocation
 Allocation settings applied to remote TopicQueries. More...
 
System::Int32 remote_topic_query_hash_buckets
 Number of hash buckets for remote TopicQueries. More...
 
System::Int32 writer_data_tag_list_max_length
 Maximum number of data tags associated with a DDS::DataWriter. More...
 
System::Int32 writer_data_tag_string_max_length
 Maximum string length of the data tags associated with a DDS::DataWriter. More...
 
System::Int32 reader_data_tag_list_max_length
 Maximum number of data tags associated with a DDS::DataReader. More...
 
System::Int32 reader_data_tag_string_max_length
 Maximum string length of the data tags associated with a DDS::DataReader. More...
 

Detailed Description

Various settings that configure how a DDS::DomainParticipant allocates and uses physical memory for internal resources, including the maximum sizes of various properties.

This QoS policy sets maximum size limits on variable-length parameters used by the participant and its contained Entities. It also controls the initial and maximum sizes of data structures used by the participant to store information about locally-created and remotely-discovered entities (such as DataWriters/DataReaders), as well as parameters used by the internal database to size the hash tables it uses.

By default, a DDS::DomainParticipant is allowed to dynamically allocate memory as needed as users create local Entities such as DDS::DataWriter and DDS::DataReader or as the participant discovers new applications to store their information. By setting fixed values for the maximum parameters in this QosPolicy, you can bound the memory that can be allocated by a DomainParticipant. In addition, by setting the initial values to the maximum values, you can reduce the amount of memory allocated by DomainParticipants after the initialization period. Notice that memory can still be allocated dynamically after the initialization period. For example, when a new local DDS::DataWriter or DDS::DataReader is created, the initial memory required for its queue is allocated dynamically.

The maximum sizes of different variable-length parameters such as the number of partitions that can be stored in the DDS::PartitionQosPolicy, the maximum length of data store in the DDS::UserDataQosPolicy and DDS::GroupDataQosPolicy, and many others can be changed from their defaults using this QoS policy. However, it is important that all DomainParticipants that need to communicate with each other use the same set of maximum values. Otherwise, when these parameters are propagated from one DDS::DomainParticipant to another, a DDS::DomainParticipant with a smaller maximum length may reject the parameter, resulting in an error.

An important parameter in this QoS policy that is often changed by users is DDS::DomainParticipantResourceLimitsQosPolicy::type_object_max_serialized_length.

This QoS policy is an extension to the DDS standard.

Entity:
DDS::DomainParticipant
Properties:
RxO = N/A
Changeable = NO

Member Data Documentation

◆ local_writer_allocation

AllocationSettings_t DDS::DomainParticipantResourceLimitsQosPolicy::local_writer_allocation

Allocation settings applied to local DataWriters.

[default] initial_count = 16; max_count = DDS::ResourceLimitsQosPolicy::LENGTH_UNLIMITED; incremental_count = -1

[range] See allowed ranges in struct DDS::AllocationSettings_t

◆ local_reader_allocation

AllocationSettings_t DDS::DomainParticipantResourceLimitsQosPolicy::local_reader_allocation

Allocation settings applied to local DataReaders.

[default] initial_count = 16; max_count = DDS::ResourceLimitsQosPolicy::LENGTH_UNLIMITED; incremental_count = -1

[range] See allowed ranges in struct DDS::AllocationSettings_t

◆ local_publisher_allocation

AllocationSettings_t DDS::DomainParticipantResourceLimitsQosPolicy::local_publisher_allocation

Allocation settings applied to local Publisher.

[default] initial_count = 4; max_count = DDS::ResourceLimitsQosPolicy::LENGTH_UNLIMITED; incremental_count = -1

[range] See allowed ranges in struct DDS::AllocationSettings_t

◆ local_subscriber_allocation

AllocationSettings_t DDS::DomainParticipantResourceLimitsQosPolicy::local_subscriber_allocation

Allocation settings applied to local Subscriber.

[default] initial_count = 4; max_count = DDS::ResourceLimitsQosPolicy::LENGTH_UNLIMITED; incremental_count = -1

[range] See allowed ranges in struct DDS::AllocationSettings_t

◆ local_topic_allocation

AllocationSettings_t DDS::DomainParticipantResourceLimitsQosPolicy::local_topic_allocation

Allocation settings applied to local Topic.

[default] initial_count = 16; max_count = DDS::ResourceLimitsQosPolicy::LENGTH_UNLIMITED; incremental_count = -1

[range] See allowed ranges in struct DDS::AllocationSettings_t

◆ remote_writer_allocation

AllocationSettings_t DDS::DomainParticipantResourceLimitsQosPolicy::remote_writer_allocation

Allocation settings applied to remote DataWriters.

Remote DataWriters include all DataWriters, both local and remote.

[default] initial_count = 64; max_count = DDS::ResourceLimitsQosPolicy::LENGTH_UNLIMITED; incremental_count = -1

[range] See allowed ranges in struct DDS::AllocationSettings_t

◆ remote_reader_allocation

AllocationSettings_t DDS::DomainParticipantResourceLimitsQosPolicy::remote_reader_allocation

Allocation settings applied to remote DataReaders.

Remote DataReaders include all DataReaders, both local and remote.

[default] initial_count = 64; max_count = DDS::ResourceLimitsQosPolicy::LENGTH_UNLIMITED; incremental_count = -1

[range] See allowed ranges in struct DDS::AllocationSettings_t

◆ remote_participant_allocation

AllocationSettings_t DDS::DomainParticipantResourceLimitsQosPolicy::remote_participant_allocation

Allocation settings applied to remote DomainParticipants.

Remote DomainParticipants include all DomainParticipants, both local and remote.

[default] initial_count = 16; max_count = DDS::ResourceLimitsQosPolicy::LENGTH_UNLIMITED; incremental_count = -1

[range] See allowed ranges in struct DDS::AllocationSettings_t

◆ matching_writer_reader_pair_allocation

AllocationSettings_t DDS::DomainParticipantResourceLimitsQosPolicy::matching_writer_reader_pair_allocation

Allocation settings applied to matching local writer and remote/local reader pairs.

[default] initial_count = 32; max_count = DDS::ResourceLimitsQosPolicy::LENGTH_UNLIMITED; incremental_count = -1

[range] See allowed ranges in struct DDS::AllocationSettings_t

◆ matching_reader_writer_pair_allocation

AllocationSettings_t DDS::DomainParticipantResourceLimitsQosPolicy::matching_reader_writer_pair_allocation

Allocation settings applied to matching local reader and remote/local writer pairs.

[default] initial_count = 32; max_count = DDS::ResourceLimitsQosPolicy::LENGTH_UNLIMITED; incremental_count = -1

[range] See allowed ranges in struct DDS::AllocationSettings_t

◆ ignored_entity_allocation

AllocationSettings_t DDS::DomainParticipantResourceLimitsQosPolicy::ignored_entity_allocation

Allocation settings applied to ignored entities.

[default] initial_count = 8; max_count = DDS::ResourceLimitsQosPolicy::LENGTH_UNLIMITED; incremental_count = -1

[range] See allowed ranges in struct DDS::AllocationSettings_t

◆ content_filtered_topic_allocation

AllocationSettings_t DDS::DomainParticipantResourceLimitsQosPolicy::content_filtered_topic_allocation

Allocation settings applied to content filtered topic.

[default] initial_count = 4; max_count = DDS::ResourceLimitsQosPolicy::LENGTH_UNLIMITED; incremental_count = -1

[range] See allowed ranges in struct DDS::AllocationSettings_t

◆ content_filter_allocation

AllocationSettings_t DDS::DomainParticipantResourceLimitsQosPolicy::content_filter_allocation

Allocation settings applied to content filter.

[default] initial_count = 4; max_count = DDS::ResourceLimitsQosPolicy::LENGTH_UNLIMITED; incremental_count = -1

[range] See allowed ranges in struct DDS::AllocationSettings_t

◆ read_condition_allocation

AllocationSettings_t DDS::DomainParticipantResourceLimitsQosPolicy::read_condition_allocation

Allocation settings applied to read condition pool.

[default] initial_count = 4; max_count = DDS::ResourceLimitsQosPolicy::LENGTH_UNLIMITED, incremental_count = -1

[range] See allowed ranges in struct DDS::AllocationSettings_t

◆ query_condition_allocation

AllocationSettings_t DDS::DomainParticipantResourceLimitsQosPolicy::query_condition_allocation

Allocation settings applied to query condition pool.

[default] initial_count = 4; max_count = DDS::ResourceLimitsQosPolicy::LENGTH_UNLIMITED, incremental_count = -1

[range] See allowed ranges in struct DDS::AllocationSettings_t

◆ outstanding_asynchronous_sample_allocation

AllocationSettings_t DDS::DomainParticipantResourceLimitsQosPolicy::outstanding_asynchronous_sample_allocation

Allocation settings applied to the maximum number of samples (from all DDS::DataWriter) waiting to be asynchronously written.

[default] initial_count = 64; max_count = DDS::ResourceLimitsQosPolicy::LENGTH_UNLIMITED, incremental_count = -1

[range] See allowed ranges in struct DDS::AllocationSettings_t

◆ flow_controller_allocation

AllocationSettings_t DDS::DomainParticipantResourceLimitsQosPolicy::flow_controller_allocation

Allocation settings applied to flow controllers.

[default] initial_count = 4; max_count = DDS::ResourceLimitsQosPolicy::LENGTH_UNLIMITED, incremental_count = -1

[range] See allowed ranges in struct DDS::AllocationSettings_t

◆ local_writer_hash_buckets

System::Int32 DDS::DomainParticipantResourceLimitsQosPolicy::local_writer_hash_buckets

Hash_Buckets settings applied to local DataWriters.

[default] 4

[range] [1, 10000]

◆ local_reader_hash_buckets

System::Int32 DDS::DomainParticipantResourceLimitsQosPolicy::local_reader_hash_buckets

Number of hash buckets for local DataReaders.

[default] 4

[range] [1, 10000]

◆ local_publisher_hash_buckets

System::Int32 DDS::DomainParticipantResourceLimitsQosPolicy::local_publisher_hash_buckets

Number of hash buckets for local Publisher.

[default] 1

[range] [1, 10000]

◆ local_subscriber_hash_buckets

System::Int32 DDS::DomainParticipantResourceLimitsQosPolicy::local_subscriber_hash_buckets

Number of hash buckets for local Subscriber.

[default] 1

[range] [1, 10000]

◆ local_topic_hash_buckets

System::Int32 DDS::DomainParticipantResourceLimitsQosPolicy::local_topic_hash_buckets

Number of hash buckets for local Topic.

[default] 4

[range] [1, 10000]

◆ remote_writer_hash_buckets

System::Int32 DDS::DomainParticipantResourceLimitsQosPolicy::remote_writer_hash_buckets

Number of hash buckets for remote DataWriters.

Remote DataWriters include all DataWriters, both local and remote.

[default] 16

[range] [1, 10000]

◆ remote_reader_hash_buckets

System::Int32 DDS::DomainParticipantResourceLimitsQosPolicy::remote_reader_hash_buckets

Number of hash buckets for remote DataReaders.

Remote DataReaders include all DataReaders, both local and remote.

[default] 16

[range] [1, 10000]

◆ remote_participant_hash_buckets

System::Int32 DDS::DomainParticipantResourceLimitsQosPolicy::remote_participant_hash_buckets

Number of hash buckets for remote DomainParticipants.

Remote DomainParticipants include all DomainParticipants, both local and remote.

[default] 4

[range] [1, 10000]

◆ matching_writer_reader_pair_hash_buckets

System::Int32 DDS::DomainParticipantResourceLimitsQosPolicy::matching_writer_reader_pair_hash_buckets

Number of hash buckets for matching local writer and remote/local reader pairs.

[default] 32

[range] [1, 10000]

◆ matching_reader_writer_pair_hash_buckets

System::Int32 DDS::DomainParticipantResourceLimitsQosPolicy::matching_reader_writer_pair_hash_buckets

Number of hash buckets for matching local reader and remote/local writer pairs.

[default] 32

[range] [1, 10000]

◆ ignored_entity_hash_buckets

System::Int32 DDS::DomainParticipantResourceLimitsQosPolicy::ignored_entity_hash_buckets

Number of hash buckets for ignored entities.

[default] 1

[range] [1, 10000]

◆ content_filtered_topic_hash_buckets

System::Int32 DDS::DomainParticipantResourceLimitsQosPolicy::content_filtered_topic_hash_buckets

Number of hash buckets for content filtered topics.

[default] 1

[range] [1, 10000]

◆ content_filter_hash_buckets

System::Int32 DDS::DomainParticipantResourceLimitsQosPolicy::content_filter_hash_buckets

Number of hash buckets for content filters.

[default] 1

[range] [1, 10000]

◆ flow_controller_hash_buckets

System::Int32 DDS::DomainParticipantResourceLimitsQosPolicy::flow_controller_hash_buckets

Number of hash buckets for flow controllers.

[default] 1

[range] [1, 10000]

◆ max_gather_destinations

System::Int32 DDS::DomainParticipantResourceLimitsQosPolicy::max_gather_destinations

Maximum number of destinations per RTI Connext send.

When RTI Connext sends out a message, it has the capability to send to multiple destinations to be more efficient. The maximum number of destinations per RTI Connext send is specified by max_gather_destinations.

[default] 16

[range] [16, 1 million]

◆ participant_user_data_max_length

System::Int32 DDS::DomainParticipantResourceLimitsQosPolicy::participant_user_data_max_length

Maximum length of user data in DDS::DomainParticipantQos and DDS::ParticipantBuiltinTopicData.

[default] 256

[range] [0,0x7fffffff]

◆ topic_data_max_length

System::Int32 DDS::DomainParticipantResourceLimitsQosPolicy::topic_data_max_length

Maximum length of topic data in DDS::TopicQos, DDS::TopicBuiltinTopicData, DDS::PublicationBuiltinTopicData and DDS::SubscriptionBuiltinTopicData.

[default] 256

[range] [0,0x7fffffff]

◆ publisher_group_data_max_length

System::Int32 DDS::DomainParticipantResourceLimitsQosPolicy::publisher_group_data_max_length

Maximum length of group data in DDS::PublisherQos and DDS::PublicationBuiltinTopicData.

[default] 256

[range] [0,0x7fffffff]

◆ subscriber_group_data_max_length

System::Int32 DDS::DomainParticipantResourceLimitsQosPolicy::subscriber_group_data_max_length

Maximum length of group data in DDS::SubscriberQos and DDS::SubscriptionBuiltinTopicData.

[default] 256

[range] [0,0x7fffffff]

◆ writer_user_data_max_length

System::Int32 DDS::DomainParticipantResourceLimitsQosPolicy::writer_user_data_max_length

Maximum length of user data in DDS::DataWriterQos and DDS::PublicationBuiltinTopicData.

[default] 256

[range] [0,0x7fffffff]

◆ reader_user_data_max_length

System::Int32 DDS::DomainParticipantResourceLimitsQosPolicy::reader_user_data_max_length

Maximum length of user data in DDS::DataReaderQos and DDS::SubscriptionBuiltinTopicData.

[default] 256

[range] [0,0x7fffffff]

◆ max_partitions

System::Int32 DDS::DomainParticipantResourceLimitsQosPolicy::max_partitions

Maximum number of partition name strings allowable in a DDS::PartitionQosPolicy.

This setting is made on a per DomainParticipant basis; it cannot be set individually on a per Publisher/Subscriber basis. However, the limit is enforced and applies per Publisher/Subscriber.

This value cannot exceed 64.

[default] 64

[range] [0,64]

◆ max_partition_cumulative_characters

System::Int32 DDS::DomainParticipantResourceLimitsQosPolicy::max_partition_cumulative_characters

Maximum number of combined characters allowable in all partition names in a DDS::PartitionQosPolicy.

The maximum number of combined characters should account for a terminating NULL ('\0') character for each partition name string.

This setting is made on a per DomainParticipant basis; it cannot be set individually on a per Publisher/Subscriber basis. However, the limit is enforced and applies per Publisher/Subscriber.

This value cannot exceed 256.

[default] 256

[range] [0,256]

◆ type_code_max_serialized_length

System::Int32 DDS::DomainParticipantResourceLimitsQosPolicy::type_code_max_serialized_length

Maximum size of serialized string for type code.

This parameter is an alternative to DDS::DomainParticipantResourceLimitsQosPolicy::type_object_max_serialized_length for limiting the size of the type code that a DDS::DomainParticipant is able to store and propagate for user data types. Type codes can be used by external applications to understand user data types without having the data type predefined in compiled form. However, since type codes contain all of the information of a data structure, including the strings that define the names of the members of a structure, complex data structures can result in large type codes. So it is common for users to set this parameter to a large value, if used (by default, it is set to 0). However, as with all parameters in this QoS policy defining maximum sizes for variable-length elements, all DomainParticipants in the same domain should use the same value for this parameter. Note: TypeObject is now the standard method of exchanging type information in RTI Connext. It is recommended to use DDS::DomainParticipantResourceLimitsQosPolicy::type_object_max_serialized_length to configure the maximum serialized type object string.

[default] 0

[range] [0,0xffff]

◆ type_object_max_serialized_length

System::Int32 DDS::DomainParticipantResourceLimitsQosPolicy::type_object_max_serialized_length

The maximum length, in bytes, that the buffer to serialize a TypeObject can consume.

This parameter limits the size of the TypeObject that a DomainParticipant is able to propagate. Since TypeObjects contain all of the information of a data structure, including the strings that define the names of the members of a structure, complex data structures can result in TypeObjects larger than the default maximum of 8192 bytes. This field allows you to specify a larger value. The desired size for a given DDS::TypeCode can be obtained using DDS::TypeCode::get_type_object_serialized_size.

[default] 8192

[range] [0,0x7fffffff]

◆ serialized_type_object_dynamic_allocation_threshold

System::Int32 DDS::DomainParticipantResourceLimitsQosPolicy::serialized_type_object_dynamic_allocation_threshold

A threshold, in bytes, for dynamic memory allocation for the serialized TypeObject.

Above this threshold, the memory for a TypeObject is allocated dynamically. Below it, the memory is obtained from a pool of fixed-size buffers. The size of the buffers is equal to this threshold.

In case DDS::DomainParticipantResourceLimitsQosPolicy::type_object_max_serialized_length is different than DDS::ResourceLimitsQosPolicy::LENGTH_UNLIMITED and is smaller than DDS::DomainParticipantResourceLimitsQosPolicy::serialized_type_object_dynamic_allocation_threshold: DDS::DomainParticipantResourceLimitsQosPolicy::serialized_type_object_dynamic_allocation_threshold will be adjusted to DDS::DomainParticipantResourceLimitsQosPolicy::type_object_max_serialized_length.

[default] 8192

[range] [0,0x7fffffff] <= DDS::DomainParticipantResourceLimitsQosPolicy::type_object_max_serialized_length

◆ type_object_max_deserialized_length

System::Int32 DDS::DomainParticipantResourceLimitsQosPolicy::type_object_max_deserialized_length

The maximum number of bytes that a deserialized TypeObject can consume.

This parameter limits the size of the TypeObject that a DomainParticipant is able to store.

[default] DDS::ResourceLimitsQosPolicy::LENGTH_UNLIMITED

[range] [0,0x7fffffff] or DDS::ResourceLimitsQosPolicy::LENGTH_UNLIMITED

◆ deserialized_type_object_dynamic_allocation_threshold

System::Int32 DDS::DomainParticipantResourceLimitsQosPolicy::deserialized_type_object_dynamic_allocation_threshold

A threshold, in bytes, for dynamic memory allocation for the deserialized TypeObject.

Above this threshold, the memory for a TypeObject is allocated dynamically. Below it, the memory is obtained from a pool of fixed-size buffers. The size of the buffers is equal to this threshold.

In case DDS::DomainParticipantResourceLimitsQosPolicy::type_object_max_deserialized_length is different than DDS::ResourceLimitsQosPolicy::LENGTH_UNLIMITED and is smaller than DDS::DomainParticipantResourceLimitsQosPolicy::deserialized_type_object_dynamic_allocation_threshold: DDS::DomainParticipantResourceLimitsQosPolicy::deserialized_type_object_dynamic_allocation_threshold will be adjusted to DDS::DomainParticipantResourceLimitsQosPolicy::type_object_max_deserialized_length.

[default] 4096

[range] [0,0x7fffffff] <= DDS::DomainParticipantResourceLimitsQosPolicy::type_object_max_deserialized_length

◆ contentfilter_property_max_length

System::Int32 DDS::DomainParticipantResourceLimitsQosPolicy::contentfilter_property_max_length

This field is the maximum length of all data related to a Content-filtered topic.

This is the sum of the length of the ContentFilteredTopic name, the length of the related topic name, the length of the filter expression, the length of the filter parameters, and the length of the filter name. The maximum number of combined characters should account for a terminating NULL ('\0') character for each string.

[default] 256

[range] [0,0xffff]

◆ channel_seq_max_length

System::Int32 DDS::DomainParticipantResourceLimitsQosPolicy::channel_seq_max_length

Maximum number of channels that can be specified in DDS::MultiChannelQosPolicy for MultiChannel DataWriters.

[default] 32

[range] [0,0xffff]

◆ channel_filter_expression_max_length

System::Int32 DDS::DomainParticipantResourceLimitsQosPolicy::channel_filter_expression_max_length

Maximum length of a channel DDS::ChannelSettings_t::filter_expression in a MultiChannel DataWriter.

The length should account for a terminating NULL ('\0') character.

[default] 256

[range] [0,0xffff]

◆ participant_property_list_max_length

System::Int32 DDS::DomainParticipantResourceLimitsQosPolicy::participant_property_list_max_length

Maximum number of properties associated with the DDS::DomainParticipant.

[default] 32

[range] [0,0xffff]

◆ participant_property_string_max_length

System::Int32 DDS::DomainParticipantResourceLimitsQosPolicy::participant_property_string_max_length

Maximum string length of the properties associated with the DDS::DomainParticipant.

The string length is defined as the cumulative length in bytes, including the null terminating characters, of all the pairs (name, value) associated with the DDS::DomainParticipant properties.

[default] 2048

[range] [0,0xffff]

◆ writer_property_list_max_length

System::Int32 DDS::DomainParticipantResourceLimitsQosPolicy::writer_property_list_max_length

Maximum number of properties associated with a DDS::DataWriter.

[range] [0,0xffff]

[default] 32

◆ writer_property_string_max_length

System::Int32 DDS::DomainParticipantResourceLimitsQosPolicy::writer_property_string_max_length

Maximum string length of the properties associated with a DDS::DataWriter.

The string length is defined as the cumulative length in bytes, including the null terminating characters, of all the pairs (name, value) associated with the DDS::DataWriter properties.

[default] 1024

[range] [0,0xffff]

◆ reader_property_list_max_length

System::Int32 DDS::DomainParticipantResourceLimitsQosPolicy::reader_property_list_max_length

Maximum number of properties associated with a DDS::DataReader.

[default] 32

[range] [0,0xffff]

◆ reader_property_string_max_length

System::Int32 DDS::DomainParticipantResourceLimitsQosPolicy::reader_property_string_max_length

Maximum string length of the properties associated with a DDS::DataReader.

The string length is defined as the cumulative length in bytes, including the null terminating characters, of all the pairs (name, value) associated with a DDS::DataReader properties.

[default] 1024

[range] [0,0xffff]

◆ max_endpoint_groups

System::Int32 DDS::DomainParticipantResourceLimitsQosPolicy::max_endpoint_groups

Maximum number of DDS::EndpointGroup_t allowable in a DDS::AvailabilityQosPolicy.

[default] 32

[range] [0,65535]

◆ max_endpoint_group_cumulative_characters

System::Int32 DDS::DomainParticipantResourceLimitsQosPolicy::max_endpoint_group_cumulative_characters

Maximum number of combined role_name characters allowed in all DDS::EndpointGroup_t in a DDS::AvailabilityQosPolicy.

The maximum number of combined characters should account for a terminating NULL character for each role_name string.

[default] 1024

[range] [0,65535]

◆ transport_info_list_max_length

System::Int32 DDS::DomainParticipantResourceLimitsQosPolicy::transport_info_list_max_length

Maximum number of installed transports to send and receive information about in DDS::ParticipantBuiltinTopicData::transport_info.

[default] 6

[range] [0,100]

◆ ignored_entity_replacement_kind

DomainParticipantResourceLimitsIgnoredEntityReplacementKind DDS::DomainParticipantResourceLimitsQosPolicy::ignored_entity_replacement_kind

Replacement policy for the ignored entities. It sets what entity can be replaced when resource limits set in DDS::DomainParticipantResourceLimitsQosPolicy::ignored_entity_allocation are reached.

When a DDS::DomainParticipant's number of ignored entities is greater than DDS::DomainParticipantResourceLimitsQosPolicy::ignored_entity_allocation, the DDS::DomainParticipant will try to make room by replacing an existing ignored participant entry. This field specifies what entity is allowed to be replaced.

If a replaceable participant entry is not available, an out-of-resources exception will be returned.

[default] DDS::DomainParticipantResourceLimitsIgnoredEntityReplacementKind::NO_REPLACEMENT_IGNORED_ENTITY_REPLACEMENT

See also
DDS::DomainParticipantResourceLimitsIgnoredEntityReplacementKind

◆ remote_topic_query_allocation

AllocationSettings_t DDS::DomainParticipantResourceLimitsQosPolicy::remote_topic_query_allocation

Allocation settings applied to remote TopicQueries.

Settings applied to the allocation of information about DDS::TopicQuery objects created by other participants and discovered by this participant.

When the participant receives a new topic query that would make the current count go above max_count, it is not processed until the current count drops (i.e. another topic query is cancelled). The topic query stays in the Built-in ServiceRequest DataReader queue until it can be processed or it is cancelled.

[default] initial_count = 1; max_count = DDS::ResourceLimitsQosPolicy::LENGTH_UNLIMITED; incremental_count = -1

[range] See allowed ranges in struct DDS::AllocationSettings_t

◆ remote_topic_query_hash_buckets

System::Int32 DDS::DomainParticipantResourceLimitsQosPolicy::remote_topic_query_hash_buckets

Number of hash buckets for remote TopicQueries.

[default] 1

[range] [1, 10000]

See also
DDS::DomainParticipantResourceLimitsQosPolicy::remote_topic_query_allocation

◆ writer_data_tag_list_max_length

System::Int32 DDS::DomainParticipantResourceLimitsQosPolicy::writer_data_tag_list_max_length

Maximum number of data tags associated with a DDS::DataWriter.

[default] 0

[range] [0,0xffff]

◆ writer_data_tag_string_max_length

System::Int32 DDS::DomainParticipantResourceLimitsQosPolicy::writer_data_tag_string_max_length

Maximum string length of the data tags associated with a DDS::DataWriter.

The string length is defined as the cumulative length in bytes, including the null terminating characters, of all the pairs (name, value) associated with the DDS::DataWriter data tags.

[default] 0

[range] [0,0xffff]

◆ reader_data_tag_list_max_length

System::Int32 DDS::DomainParticipantResourceLimitsQosPolicy::reader_data_tag_list_max_length

Maximum number of data tags associated with a DDS::DataReader.

[default] 0

[range] [0,0xffff]

◆ reader_data_tag_string_max_length

System::Int32 DDS::DomainParticipantResourceLimitsQosPolicy::reader_data_tag_string_max_length

Maximum string length of the data tags associated with a DDS::DataReader.

The string length is defined as the cumulative length in bytes, including the null terminating characters, of all the pairs (name, value) associated with the DDS::DataReader data tags.

[default] 0

[range] [0,0xffff]