An asynchronous task on the timeline. An asynchronous task can have many (nested) synchronous operations. Synchronous operations can live longer than the current isolate event. To pass a TimelineTask to another isolate, you must first call pass to get the task id and then construct a new TimelineTask in the other isolate.

Constructors

TimelineTask()

Create a task. taskId will be set by the system.

TimelineTask.withTaskId(int taskId)

Create a task with an explicit taskId. This is useful if you are passing a task from one isolate to another.

Properties

hashCode → int

Get a hash code for this object.

read-only, inherited
runtimeType → Type

A representation of the runtime type of the object.

read-only, inherited

Operators

operator ==(other) → bool

The equality operator.

inherited

Methods

finish() → void

Finish the last synchronous operation that was started.

instant(String name, {Map arguments}) → void

Emit an instant event for this task.

noSuchMethod(Invocation invocation) → dynamic

Invoked when a non-existent method or property is accessed.

inherited
pass() → int

Retrieve the TimelineTask's task id. Will throw an exception if the stack is not empty.

start(String name, {Map arguments}) → void

Start a synchronous operation within this task named name. Optionally takes a Map of arguments.

toString() → String

Returns a string representation of this object.

inherited