Public Attributes | |
final AllocationSettings_t | local_writer_allocation |
Allocation settings applied to local DataWriters. | |
final AllocationSettings_t | local_reader_allocation |
Allocation settings applied to local DataReaders. | |
final AllocationSettings_t | local_publisher_allocation |
Allocation settings applied to local Publisher. | |
final AllocationSettings_t | local_subscriber_allocation |
Allocation settings applied to local Subscriber. | |
final AllocationSettings_t | local_topic_allocation |
Allocation settings applied to local Topic. | |
final AllocationSettings_t | remote_writer_allocation |
Allocation settings applied to remote DataWriters. | |
final AllocationSettings_t | remote_reader_allocation |
Allocation settings applied to remote DataReaders. | |
final AllocationSettings_t | remote_participant_allocation |
Allocation settings applied to remote DomainParticipants. | |
final AllocationSettings_t | matching_writer_reader_pair_allocation |
Allocation settings applied to matching local writer and remote/local reader pairs. | |
final AllocationSettings_t | matching_reader_writer_pair_allocation |
Allocation settings applied to matching local reader and remote/local writer pairs. | |
final AllocationSettings_t | ignored_entity_allocation |
Allocation settings applied to ignored entities. | |
final AllocationSettings_t | content_filtered_topic_allocation |
Allocation settings applied to content filtered topic. | |
final AllocationSettings_t | content_filter_allocation |
Allocation settings applied to content filter. | |
final AllocationSettings_t | read_condition_allocation |
Allocation settings applied to read condition pool. | |
final AllocationSettings_t | query_condition_allocation |
Allocation settings applied to query condition pool. | |
final AllocationSettings_t | outstanding_asynchronous_sample_allocation |
Allocation settings applied to the maximum number of samples (from all com.rti.dds.publication.DataWriter) waiting to be asynchronously written. | |
final AllocationSettings_t | flow_controller_allocation |
Allocation settings applied to flow controllers. | |
int | local_writer_hash_buckets |
Hash_Buckets settings applied to local DataWriters. | |
int | local_reader_hash_buckets |
Number of hash buckets for local DataReaders. | |
int | local_publisher_hash_buckets |
Number of hash buckets for local Publisher. | |
int | local_subscriber_hash_buckets |
Number of hash buckets for local Subscriber. | |
int | local_topic_hash_buckets |
Number of hash buckets for local Topic. | |
int | remote_writer_hash_buckets |
Number of hash buckets for remote DataWriters. | |
int | remote_reader_hash_buckets |
Number of hash buckets for remote DataReaders. | |
int | remote_participant_hash_buckets |
Number of hash buckets for remote DomainParticipants. | |
int | matching_writer_reader_pair_hash_buckets |
Number of hash buckets for matching local writer and remote/local reader pairs. | |
int | matching_reader_writer_pair_hash_buckets |
Number of hash buckets for matching local reader and remote/local writer pairs. | |
int | ignored_entity_hash_buckets |
Number of hash buckets for ignored entities. | |
int | content_filtered_topic_hash_buckets |
Number of hash buckets for content filtered topics. | |
int | content_filter_hash_buckets |
Number of hash buckets for content filters. | |
int | flow_controller_hash_buckets |
Number of hash buckets for flow controllers. | |
int | max_gather_destinations |
Maximum number of destinations per RTI Connext send. | |
int | participant_user_data_max_length |
Maximum length of user data in com.rti.dds.domain.DomainParticipantQos and builtin.ParticipantBuiltinTopicData. | |
int | topic_data_max_length |
Maximum length of topic data in com.rti.dds.topic.TopicQos, builtin.TopicBuiltinTopicData, builtin.PublicationBuiltinTopicData and builtin.SubscriptionBuiltinTopicData. | |
int | publisher_group_data_max_length |
Maximum length of group data in com.rti.dds.publication.PublisherQos and builtin.PublicationBuiltinTopicData. | |
int | subscriber_group_data_max_length |
Maximum length of group data in com.rti.dds.subscription.SubscriberQos and builtin.SubscriptionBuiltinTopicData. | |
int | writer_user_data_max_length |
Maximum length of user data in com.rti.dds.publication.DataWriterQos and builtin.PublicationBuiltinTopicData. | |
int | reader_user_data_max_length |
Maximum length of user data in com.rti.dds.subscription.DataReaderQos and builtin.SubscriptionBuiltinTopicData. | |
int | max_partitions |
Maximum number of partition name strings allowable in a com.rti.dds.infrastructure.PartitionQosPolicy. | |
int | max_partition_cumulative_characters |
Maximum number of combined characters allowable in all partition names in a com.rti.dds.infrastructure.PartitionQosPolicy. | |
int | type_code_max_serialized_length |
Maximum size of serialized string for type code. | |
int | contentfilter_property_max_length |
This field is the maximum length of all data related to a Content-filtered topic. | |
int | channel_seq_max_length |
Maximum number of channels that can be specified in com.rti.dds.infrastructure.MultiChannelQosPolicy for MultiChannel DataWriters. | |
int | channel_filter_expression_max_length |
Maximum length of a channel com.rti.dds.infrastructure.ChannelSettings_t.filter_expression in a MultiChannel DataWriter. | |
int | participant_property_list_max_length |
Maximum number of properties associated with the com.rti.dds.domain.DomainParticipant. | |
int | participant_property_string_max_length |
Maximum string length of the properties associated with the com.rti.dds.domain.DomainParticipant. | |
int | writer_property_list_max_length |
Maximum number of properties associated with a com.rti.dds.publication.DataWriter. | |
int | writer_property_string_max_length |
Maximum string length of the properties associated with a com.rti.dds.publication.DataWriter. | |
int | reader_property_list_max_length |
Maximum number of properties associated with a com.rti.dds.subscription.DataReader. | |
int | reader_property_string_max_length |
Maximum string length of the properties associated with a com.rti.dds.subscription.DataReader. | |
int | max_endpoint_groups |
Maximum number of com.rti.dds.infrastructure.EndpointGroup_t allowable in a com.rti.dds.infrastructure.AvailabilityQosPolicy. | |
int | max_endpoint_group_cumulative_characters |
Maximum number of combined role_name characters allowable in all com.rti.dds.infrastructure.EndpointGroup_t in a com.rti.dds.infrastructure.AvailabilityQosPolicy. |
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 com.rti.dds.domain.DomainParticipant is allowed to dynamically allocate memory as needed as users create local Entities such as com.rti.dds.publication.DataWriter and com.rti.dds.subscription.DataReader objects or as the participant discovers new applications. By setting fixed values for the maximum parameters in this QoS policy, you can bound the memory that can be allocated by a com.rti.dds.domain.DomainParticipant. In addition, by setting the initial values to the maximum values, you can prevent DomainParticipants from allocating memory after the initialization period.
The maximum sizes of different variable-length parameters such as the number of partitions that can be stored in the com.rti.dds.infrastructure.PartitionQosPolicy, the maximum length of data store in the com.rti.dds.infrastructure.UserDataQosPolicy and com.rti.dds.infrastructure.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 com.rti.dds.domain.DomainParticipant to another, a com.rti.dds.domain.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 com.rti.dds.infrastructure.DomainParticipantResourceLimitsQosPolicy.type_code_max_serialized_length.
This QoS policy is an extension to the DDS standard.
Allocation settings applied to local DataWriters.
[default] initial_count = 16; max_count = ResourceLimitsQosPolicy.LENGTH_UNLIMITED; incremental_count = -1
[range] See allowed ranges in struct com.rti.dds.infrastructure.AllocationSettings_t
Allocation settings applied to local DataReaders.
[default] initial_count = 16; max_count = ResourceLimitsQosPolicy.LENGTH_UNLIMITED; incremental_count = -1
[range] See allowed ranges in struct com.rti.dds.infrastructure.AllocationSettings_t
Allocation settings applied to local Publisher.
[default] initial_count = 4; max_count = ResourceLimitsQosPolicy.LENGTH_UNLIMITED; incremental_count = -1
[range] See allowed ranges in struct com.rti.dds.infrastructure.AllocationSettings_t
Allocation settings applied to local Subscriber.
[default] initial_count = 4; max_count = ResourceLimitsQosPolicy.LENGTH_UNLIMITED; incremental_count = -1
[range] See allowed ranges in struct com.rti.dds.infrastructure.AllocationSettings_t
Allocation settings applied to local Topic.
[default] initial_count = 16; max_count = ResourceLimitsQosPolicy.LENGTH_UNLIMITED; incremental_count = -1
[range] See allowed ranges in struct com.rti.dds.infrastructure.AllocationSettings_t
Allocation settings applied to remote DataWriters.
Remote DataWriters include all DataWriters, both local and remote.
[default] initial_count = 64; max_count = ResourceLimitsQosPolicy.LENGTH_UNLIMITED; incremental_count = -1
[range] See allowed ranges in struct com.rti.dds.infrastructure.AllocationSettings_t
Allocation settings applied to remote DataReaders.
Remote DataReaders include all DataReaders, both local and remote.
[default] initial_count = 64; max_count = ResourceLimitsQosPolicy.LENGTH_UNLIMITED; incremental_count = -1
[range] See allowed ranges in struct com.rti.dds.infrastructure.AllocationSettings_t
Allocation settings applied to remote DomainParticipants.
Remote DomainParticipants include all DomainParticipants, both local and remote.
[default] initial_count = 16; max_count = ResourceLimitsQosPolicy.LENGTH_UNLIMITED; incremental_count = -1
[range] See allowed ranges in struct com.rti.dds.infrastructure.AllocationSettings_t
Allocation settings applied to matching local writer and remote/local reader pairs.
[default] initial_count = 32; max_count = ResourceLimitsQosPolicy.LENGTH_UNLIMITED; incremental_count = -1
[range] See allowed ranges in struct com.rti.dds.infrastructure.AllocationSettings_t
Allocation settings applied to matching local reader and remote/local writer pairs.
[default] initial_count = 32; max_count = ResourceLimitsQosPolicy.LENGTH_UNLIMITED; incremental_count = -1
[range] See allowed ranges in struct com.rti.dds.infrastructure.AllocationSettings_t
Allocation settings applied to ignored entities.
[default] initial_count = 8; max_count = ResourceLimitsQosPolicy.LENGTH_UNLIMITED; incremental_count = -1
[range] See allowed ranges in struct com.rti.dds.infrastructure.AllocationSettings_t
Allocation settings applied to content filtered topic.
[default] initial_count = 4; max_count = ResourceLimitsQosPolicy.LENGTH_UNLIMITED; incremental_count = -1
[range] See allowed ranges in struct com.rti.dds.infrastructure.AllocationSettings_t
Allocation settings applied to content filter.
[default] initial_count = 4; max_count = ResourceLimitsQosPolicy.LENGTH_UNLIMITED; incremental_count = -1
[range] See allowed ranges in struct com.rti.dds.infrastructure.AllocationSettings_t
Allocation settings applied to read condition pool.
[default] initial_count = 4; max_count = ResourceLimitsQosPolicy.LENGTH_UNLIMITED, incremental_count = -1
[range] See allowed ranges in struct com.rti.dds.infrastructure.AllocationSettings_t
Allocation settings applied to query condition pool.
[default] initial_count = 4; max_count = ResourceLimitsQosPolicy.LENGTH_UNLIMITED, incremental_count = -1
[range] See allowed ranges in struct com.rti.dds.infrastructure.AllocationSettings_t
Allocation settings applied to the maximum number of samples (from all com.rti.dds.publication.DataWriter) waiting to be asynchronously written.
[default] initial_count = 64; max_count = ResourceLimitsQosPolicy.LENGTH_UNLIMITED, incremental_count = -1
[range] See allowed ranges in struct com.rti.dds.infrastructure.AllocationSettings_t
Allocation settings applied to flow controllers.
[default] initial_count = 4; max_count = ResourceLimitsQosPolicy.LENGTH_UNLIMITED, incremental_count = -1
[range] See allowed ranges in struct com.rti.dds.infrastructure.AllocationSettings_t
Hash_Buckets settings applied to local DataWriters.
[default] 4
[range] [1, 10000]
Number of hash buckets for local DataReaders.
[default] 4
[range] [1, 10000]
Number of hash buckets for local Publisher.
[default] 1
[range] [1, 10000]
Number of hash buckets for local Subscriber.
[default] 1
[range] [1, 10000]
Number of hash buckets for local Topic.
[default] 4
[range] [1, 10000]
Number of hash buckets for remote DataWriters.
Remote DataWriters include all DataWriters, both local and remote.
[default] 16
[range] [1, 10000]
Number of hash buckets for remote DataReaders.
Remote DataReaders include all DataReaders, both local and remote.
[default] 16
[range] [1, 10000]
Number of hash buckets for remote DomainParticipants.
Remote DomainParticipants include all DomainParticipants, both local and remote.
[default] 4
[range] [1, 10000]
Number of hash buckets for matching local writer and remote/local reader pairs.
[default] 32
[range] [1, 10000]
Number of hash buckets for matching local reader and remote/local writer pairs.
[default] 32
[range] [1, 10000]
Number of hash buckets for ignored entities.
[default] 1
[range] [1, 10000]
Number of hash buckets for content filtered topics.
[default] 1
[range] [1, 10000]
Number of hash buckets for content filters.
[default] 1
[range] [1, 10000]
Number of hash buckets for flow controllers.
[default] 1
[range] [1, 10000]
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] 8
[range] [4, 1 million]
Maximum length of user data in com.rti.dds.domain.DomainParticipantQos and builtin.ParticipantBuiltinTopicData.
[default] 256
[range] [0,0x7fffffff]
Maximum length of topic data in com.rti.dds.topic.TopicQos, builtin.TopicBuiltinTopicData, builtin.PublicationBuiltinTopicData and builtin.SubscriptionBuiltinTopicData.
[default] 256
[range] [0,0x7fffffff]
Maximum length of group data in com.rti.dds.publication.PublisherQos and builtin.PublicationBuiltinTopicData.
[default] 256
[range] [0,0x7fffffff]
Maximum length of group data in com.rti.dds.subscription.SubscriberQos and builtin.SubscriptionBuiltinTopicData.
[default] 256
[range] [0,0x7fffffff]
Maximum length of user data in com.rti.dds.publication.DataWriterQos and builtin.PublicationBuiltinTopicData.
[default] 256
[range] [0,0x7fffffff]
Maximum length of user data in com.rti.dds.subscription.DataReaderQos and builtin.SubscriptionBuiltinTopicData.
[default] 256
[range] [0,0x7fffffff]
int max_partitions |
Maximum number of partition name strings allowable in a com.rti.dds.infrastructure.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]
Maximum number of combined characters allowable in all partition names in a com.rti.dds.infrastructure.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]
Maximum size of serialized string for type code.
This parameter limits the size of the type code that a com.rti.dds.domain.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 type codes larger than the default maximum of 2048 bytes. So it is common for users to set this parameter to a larger value. 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.
[default] 2048
[range] [0,0xffff]
This field is the maximum length of all data related to a Content-filtered topic.
This is the sum of the length of the content filter 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]
Maximum number of channels that can be specified in com.rti.dds.infrastructure.MultiChannelQosPolicy for MultiChannel DataWriters.
[default] 32
[range] [0,0xffff]
Maximum length of a channel com.rti.dds.infrastructure.ChannelSettings_t.filter_expression in a MultiChannel DataWriter.
The length should account for a terminating NULL ('\0') character.
[default] 256
[range] [0,0xffff]
Maximum number of properties associated with the com.rti.dds.domain.DomainParticipant.
[default] 32
[range] [0,0xffff]
Maximum string length of the properties associated with the com.rti.dds.domain.DomainParticipant.
The string length is defined as the cumulative length in bytes of all the pair (name,value) associated with the com.rti.dds.domain.DomainParticipant properties.
[default] 1024
[range] [0,0xffff]
Maximum number of properties associated with a com.rti.dds.publication.DataWriter.
[range] [0,0xffff]
[default] 32
Maximum string length of the properties associated with a com.rti.dds.publication.DataWriter.
The string length is defined as the cumulative length in bytes of all the pair (name,value) associated with the data writer properties.
[default] 1024
[range] [0,0xffff]
Maximum number of properties associated with a com.rti.dds.subscription.DataReader.
[default] 32
[range] [0,0xffff]
Maximum string length of the properties associated with a com.rti.dds.subscription.DataReader.
The string length is defined as the cumulative length in bytes of all the pair (name,value) associated with a com.rti.dds.subscription.DataReader properties.
[default] 1024
[range] [0,0xffff]
Maximum number of com.rti.dds.infrastructure.EndpointGroup_t allowable in a com.rti.dds.infrastructure.AvailabilityQosPolicy.
[default] 32
[range] [0,65535]
Maximum number of combined role_name characters allowable in all com.rti.dds.infrastructure.EndpointGroup_t in a com.rti.dds.infrastructure.AvailabilityQosPolicy.
The maximum number of combined characters should account for a terminating NULL character for each role_name string.
[default] 1024
[range] [0,65535]