.. _`DDS_DomainParticipantFactory_get_instance()`: ../../api_c/html/group__DDSDomainParticipantFactoryModule.html#gac874268715a20b82db24d26d7fbae965
.. _`DDS_WaitSet_new()`: ../../api_c/html/group__DDSConditionsModule.html#ga5490c5e53e46790c2823d43310141c7b
.. _`DDS_DomainParticipantFactory_create_participant()`: ../../api_c/html/group__DDSDomainParticipantFactoryModule.html#ga325cf8f97a2752b6f486b7b1c3faf5b8
.. _`DDS_DomainParticipantFactory_finalize_instance()`: ../../api_c/html/group__DDSDomainParticipantFactoryModule.html#ga925b60f4abd015d1ecd3a389feebfa6c
.. _`OSAPI_Waitset_delete()`: ../../api_c/html/group__DDSConditionsModule.html#ga06bf93bc3887f0f5b92ddcfa4f5bfa18
.. _`DDS_String_free()`: ../../api_c/html/group__DDSStringClass.html#ga13074f0132f743923a4a36ee533997fe
.. _`Configuring Resource Limits`: ../../api_c/html/group__DDSUserManuals__ResourceModule.html

Resource Limits
===============

All resource limits in |me| are specified in a QoS policy or property. The 
properties listed below are where the various resource limits are applied, and
section `Configuring Resource Limits`_ describes each user adjustable 
resource limit in more detail. See the `Micro Memory Map`_ below for an overview of 
the memory used by each resource limit and where they apply.

DomainParticipantFactoryQos
---------------------------

See `DomainParticipantFactoryQos <ResourceModule_dpf_>`_ for more detail.

DomainParticipantQos
--------------------

The `DomainParticipantQos <ResourceModule_dp_>`_ controls resources that 
are applicable to the entire DomainParticipant. All the resources specified 
in the DomainParticipantQos are allocated when the DomainParticipant is created 
with the `DDS_DomainParticipantFactory_create_participant()`_ call.

DataReaderQos
-------------

The `DataReaderQos <ResourceModule_drqos_>`_ controls the resources used by 
the DDS_DataReader. Each DDS_DataReader allocates its own resources, even 
DDS_DataReader's of the same DDS_Topic. For this reason is it advised to 
limit the number of DDS_DataReader's per DDS_Topic to one.

DataWriterQos
-------------

The `DataWriterQos <ResourceModule_dwqos_>`_ controls the resources allocated 
by a DDS_DataWriter. Each DDS_DataWriter allocates its own resources, even 
DDS_DataWriters of the same DDS_Topic. For this reason is it advised to limit 
the number of DDS_DataWriters per topic to one.

OSAPI
-----

See `OSAPI <ResourceModule_osapi_>`_ for more details.

UDP Transport
-------------

See `UDP Transport <ResourceModule_udp_>`_ for more details.

Dynamic Participant Static Endpoint (DPSE)
------------------------------------------

The `Dynamic Participant Static Endpoint (DPSE) <ResourceModule_dpse_>`_ 
discovery plugin creates one DDS_DataWriter and one DDS_DataReader for the 
ParticipantBuiltinTopicData. The memory for the plugin includes the 
memory allocated by the DDS_DataReader and DDS_DataWriter. The memory allocated 
by the properties must be added for total memory usage.

Dynamic Participant Dynamic Endpoint (DPDE)
-------------------------------------------

The `Dynamic Participant Dynamic Endpoint (DPDE) <ResourceModule_dpde_>`_ 
discovery plugin creates one DDS_DataWriter and one DDS_DataReader for each 
ParticipantBuiltinTopicData, PublicationBuiltinTopicData, and 
SubscriptionBuiltinTopicData. The memory for the plugin includes the 
memory allocated by these DDS_DataReaders and DDS_DataWriters. The memory allocated 
by the properties must be added for total memory usage.

.. _`Micro Memory Map`:

Memory Map
----------

.. image:: ../../images/MicroMemoryMap.png