<<extension>> Settings for event. More...

Data Fields
struct DDS_ThreadSettings_t	thread
	<<extension>> Event thread QoS. More...

DDS_Long	initial_count
	<<extension>> The initial number of events. More...

DDS_Long	max_count
	<<extension>> The maximum number of events. More...

Detailed Description

<<extension>> Settings for event.

In a DDS_DomainParticipant, a thread is dedicated to handle all timed events, including checking for timeouts and deadlines and executing internal and user-defined timeout or exception handling routines/callbacks.

This QoS policy allows you to configure thread properties such as priority level and stack size. You can also configure the maximum number of events that can be posted to the event thread. By default, a DDS_DomainParticipant will dynamically allocate memory as needed for events posted to the event thread. However, by setting a maximum value or setting the initial and maximum value to be the same, you can either bound the amount of memory allocated for the event thread or prevent a DDS_DomainParticipant from dynamically allocating memory for the event thread after initialization.

This QoS policy is an extension to the DDS standard.

Entity:: DDS_DomainParticipant

Properties:: RxO = N/A
Changeable = NO

Field Documentation

◆ thread

struct DDS_ThreadSettings_t DDS_EventQosPolicy::thread

<<extension>> Event thread QoS.

There is only one event thread.

Priority:
[default] The actual value depends on your architecture:
For Windows: -2
For Linux: OS default priority
For a complete list of platform specific values, please refer to Platform Notes.

Stack Size:
[default] The actual value depends on your architecture:
For Windows: OS default stack size
For Linux: OS default stack size
For a complete list of platform specific values, please refer to Platform Notes.

Mask:
[default] mask = DDS_THREAD_SETTINGS_FLOATING_POINT | DDS_THREAD_SETTINGS_STDIO