DeviceConcurrentUtil

public class DeviceConcurrentUtil
extends Object

java.lang.Object
↳	com.android.tradefed.util.DeviceConcurrentUtil

Contains utility methods and classes for concurrent device side command execution

Use ERROR(/ExecutorService) to run commands implemented as ShellCommandCallable, and use ERROR(/#joinFuture(String,Future,long)) for synchronization against the ERROR(/Future) as returned by ERROR(/ExecutorService) for the command execution.

Summary

Nested classes
`class`	`DeviceConcurrentUtil.ShellCommandCallable<V>` A `ERROR(/Callable)` that wraps the details of executing shell command on an `ITestDevice`.

Public methods
`static <T> T`	`joinFuture(String taskDesc, task, long timeout)` Convenience method to join current thread on the `task` `DeviceNotAvailableException` and `ERROR(/TimeoutException)` occurred during execution are passed through transparently, others are logged as error but not otherwise handled.


      joinFuture(String taskDesc,  task, long timeout)

Convenience method to join current thread on the task

DeviceNotAvailableException and ERROR(/TimeoutException) occurred during execution are passed through transparently, others are logged as error but not otherwise handled.

public static T joinFuture (String taskDesc, 
                 task, 
                long timeout)

Convenience method to join current thread on the task

DeviceNotAvailableException and ERROR(/TimeoutException) occurred during execution are passed through transparently, others are logged as error but not otherwise handled.

Parameters
`taskDesc`	`String`: description of task for logging purpose
`task`	: `ERROR(/Future)` representing the task to join
`timeout`	`long`: timeout for waiting on the task

Returns
`T`	The result of the task with the template type.

Throws
	com.android.tradefed.device.DeviceNotAvailableException
	TimeoutException
`DeviceNotAvailableException`