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In order to authorize call of task_wakeup on running task: - from within the task handler itself. - in futur, from another thread. The lookups on runqueue and waitqueue are re-worked to prepare multithread stuff. If task_wakeup is called on a running task, the woken message flags are savec in the 'pending_state' attribute of the state. The real wakeup is postponed at the end of the handler process and the woken messages are copied from pending_state to the state attribute of the task. It's important to note that this change will cause a very minor (though measurable) performance loss but it is necessary to make forward progress on a multi-threaded scheduler. Most users won't ever notice. |
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