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the SubmissionTask that runs the transfer is being executed. So
there is no guarantee any transfer requests had been made to
S3 if this state is reached.
* cancelled - Was cancelled
* failed - An exception other than CancelledError was thrown
* success - No exceptions were thrown and is done.
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process. So if a result is being set for this final task, the transfer
succeeded even if something came a long and canceled the transfer
on the final task.
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dd�Zd dd�ZdS ) �BoundedExecutorNc C s6 || _ |dkr| j}|| j d�| _t|�| _|| _dS )aF An executor implementation that has a maximum queued up tasks
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have no bound in terms of the number of inflight futures.
:params max_num_threads: The maximum number of threads the executor
uses.
:type tag_semaphores: dict
:params tag_semaphores: A dictionary where the key is the name of the
tag and the value is the semaphore to use when limiting the
number of tasks the executor is processing at a time.
:type executor_cls: BaseExecutor
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:type block: boolean
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