Async Tasks

Utilities for managing periodic tasks consisting of asynchronous GRPC calls.

class bosdyn.client.async_tasks.AsyncTasks(tasks=None)[source]

Bases: object

Manages a set of tasks which work by periodically calling an update() method.

Parameters:: tasks – List of tasks to manage.

add_task(task)[source]

Add a task to be managed by this object.

Parameters:: task – Task to add.

update()[source]: Call this periodically to manage execution of tasks owned by this object.

class bosdyn.client.async_tasks.AsyncGRPCTask[source]

Bases: object

Task to be accomplished using asynchronous GRPC calls.

When it is time to run the task, an async GRPC call is run resulting in a FutureWrapper object. The FutureWrapper is monitored for completion, and then an action is taken in response.

update()[source]: Call this periodically to manage execution of task represented by this object.

class bosdyn.client.async_tasks.AsyncPeriodicGRPCTask(period_sec)[source]

Bases: AsyncGRPCTask

Periodic task to be accomplished using asynchronous GRPC calls.

When it is time to run the task, an async GRPC call is run resulting in a FutureWrapper object. The FutureWrapper is monitored for completion, and then an action is taken in response.

Parameters:: periodic_sec – Time to wait in seconds between queries.

class bosdyn.client.async_tasks.AsyncPeriodicQuery(query_name, client, logger, period_sec)[source]

Bases: AsyncPeriodicGRPCTask

Query for robot data at some regular interval.

Parameters:

query_name – Name of the query.
client – SDK client for the query.
logger – Logger to use for logging errors.
periodic_sec – Time in seconds between running the query.

property proto: Get latest response proto.