Changes between Version 55 and Version 56 of processus_thread


Ignore:
Timestamp:
Dec 8, 2017, 12:52:22 AM (4 years ago)
Author:
alain
Comment:

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  • processus_thread

    v55 v56  
    146146
    147147 * Both the T thread (executing the thread_exit() function), and the PT thread (executing the thread_join() function) try to take the "join_lock" implemented in the T thread descriptor (the "join_lock" in the PT thread is not used).
    148  * After taking the "join_lock", the T thread (running the thread_exit()  function) test the JOIN_DONE flag in T thread. If this flag is set, the PT thread arrived first: the T thread register its exit value in the PT thread "join_value" field, set the EXIT_DONE flag in the PT thread, reset the  BLOCKED_EXIT bit in PT thread (using the extended pointer stored in the "join_xp" field), release the "join_lock", and exit as described for the DETACHED case.
     148 * After taking the "join_lock", the T thread test the JOIN_DONE flag in T thread. If this flag is set, the PT thread arrived first: the T thread register its exit value in the PT thread "join_value" field, set the EXIT_DONE flag in the PT thread, reset the  BLOCKED_EXIT bit in PT thread (using the extended pointer stored in the "join_xp" field), release the "join_lock", and exit as described for the DETACHED case.
    149149 * If the JOIN_DONE flag is not set, the thread T arrived first: The T thread register its exit value in the PT thread "join_value" field, release the "join"lock", blocks on the BLOCKED_JOIN and deschedules.
    150  * After taking the "join_lock", the PT thread (running the thread_join() function) test the EXIT_DONE flag in PT thread. If this flag is set, the T thread arrived first: the PT thread
    151 reset the BLOCKED_EXIT bit in the T thread "blocked" field, get the exit value in the "join_value" field, reset the "join_lock" in T thread, and continue.
     150 * After taking the "join_lock", the PT thread test the EXIT_DONE flag in PT thread. If this flag is set, the T thread arrived first: the PT thread reset the BLOCKED_EXIT bit in the T thread "blocked" field, get the exit value in the "join_value" field, reset the "join_lock" in T thread, and continue.
    152151 * If the EXIT_DONE flag is not set, the PT thread arrived first: the PT thread register its extended pointer in the T thread "join_xp" field, set the JOIN_DONE flag in the T thread, releases the "join_lock" in the T thread, blocks on the BLOCKED_EXIT bit, and deschedules.
    153152