[jira] [Created] (FLINK-12480) Introduce mailbox to StreamTask main-loop

[Shang Yuanchun (Jira)]

Stefan Richter created FLINK-12480:
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             Summary: Introduce mailbox to StreamTask main-loop
                 Key: FLINK-12480
                 URL: https://issues.apache.org/jira/browse/FLINK-12480
             Project: Flink
          Issue Type: Sub-task
          Components: Runtime / Operators
            Reporter: Stefan Richter


In this sub-task, we introduce the mailbox data-structure to the {{StreamTask}}'s main-loop that runs the step-wise actions. After this sub-task, the mailbox events should already be respected, but the loop will currently still always find that the mailbox is empty because it is not yet integrated with the events that we will include in the next sub-tasks.



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