Changes between Version 104 and Version 105 of processus_thread


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Timestamp:
Aug 22, 2018, 5:55:39 PM (3 years ago)
Author:
alain
Comment:

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  • processus_thread

    v104 v105  
    125125== __5) Thread destruction__ ==
    126126
    127 The destruction of a target thread T can be caused by another thread K, executing  the [https://www-soc.lip6.fr/trac/almos-mkh/browser/trunk/kernel/syscalls/sys_thread_cancel.c pthread_cancel()] syscall requesting the target thread T to stop execution. It can be caused by the thread T itself, executing the [https://www-soc.lip6.fr/trac/almos-mkh/browser/trunk/kernel/syscalls/sys_thread_exit.c pthread_exit()] syscall to suicide. Finally, it can be caused by the ''exit()'' or ''kill()'' syscalls requesting the destruction of all threads of a given process.
     127The destruction of a target thread T can be caused by another thread K, executing  the [https://www-soc.lip6.fr/trac/almos-mkh/browser/trunk/kernel/syscalls/sys_thread_cancel.c pthread_cancel()] syscall requesting the target thread T to stop execution. It can be caused by the thread T itself, executing the [https://www-soc.lip6.fr/trac/almos-mkh/browser/trunk/kernel/syscalls/sys_thread_exit.c pthread_exit()] syscall to suicide. Finally, it can be caused by the  [https://www-soc.lip6.fr/trac/almos-mkh/browser/trunk/kernel/syscalls/sys_exit.c exit()] or [https://www-soc.lip6.fr/trac/almos-mkh/browser/trunk/kernel/syscalls/sys_kill.c kill()] syscalls requesting the destruction of all threads of a given process.
    128128
    129129The unique method to destroy a thread is to call the '''thread_kill()''' function, that sets the THREAD_FLAG_REQ_DELETE bit in the ''flags'' field of the target thread descriptor. The thread will be asynchronously deleted by the scheduler at the next scheduling point.