istaskstarted

istaskstarted(task) -> Bool

Tell whether a task has started executing.

Examples

Check if a task has started executing:
```
julia> t = @task sleep(5)
Task (runnable) @0x00007f9d4ca0b8a0

julia> istaskstarted(t)
false
```
This example creates a task t that sleeps for 5 seconds. The istaskstarted function is used to check if the task has started executing. In this case, it returns false since the task has not yet started.
Check if a task has started executing (completed immediately):
```
julia> t = @task 2 + 2
Task (done) @0x00007f9d4ca0b8a0

julia> istaskstarted(t)
true
```
In this example, the task t is created to perform a simple addition. Since the task is completed immediately, the istaskstarted function returns true indicating that the task has started and completed.
Check if a task has started executing (within a task):
```
julia> function mytask()
          println("Inside mytask")
          sleep(2)
          println("Task execution complete")
      end
mytask (generic function with 1 method)

julia> t = @task mytask()
Task (runnable) @0x00007f9d4ca0b8a0

julia> istaskstarted(t)
false
```
This example defines a function mytask that prints a message, sleeps for 2 seconds, and then prints another message. The istaskstarted function is used to check if the task has started executing. Initially, it returns false since the task has not yet started.

Common mistake example:

julia> t = Task();  # Empty task
julia> istaskstarted(t)
ERROR: MethodError: no method matching istaskstarted(::Task)

In this example, an empty task is created, and istaskstarted is called on it. However, since the task is empty and does not contain any code or instructions, it raises a MethodError. Make sure to provide a valid task that has executable code when using istaskstarted.

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istaskstarted

Examples

See Also

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