12fcd65468
tasklet_wakeup_on() and its derivates (tasklet_wakeup_after() and tasklet_wakeup()) do not support passing a wakeup cause like task_wakeup(). This is essentially due to an API limitation cause by the fact that for a very long time the only reason for waking up was to process pending I/O. But with the growing complexity of mux tasks, it is becoming important to be able to skip certain heavy processing when not strictly needed. One possibility is to permit the caller of tasklet_wakeup() to pass flags like task_wakeup(). Instead of going with a complex naming scheme, let's simply make the flags optional and be zero when not specified. This means that tasklet_wakeup_on() now takes either 2 or 3 args, and that the third one is the optional flags to be passed to the callee. Eligible flags are essentially the non-persistent ones (TASK_F_UEVT* and TASK_WOKEN_*) which are cleared when the tasklet is executed. This way the handler will find them in its <state> argument and will be able to distinguish various causes for the call. |
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