Changes between Version 71 and Version 72 of processus_thread

Timestamp:

Jan 11, 2018, 12:02:47 PM (7 years ago)

Author:

alain

Comment:

--

processus_thread

@@ -19 +19 @@
  * The '''LOCAL_ROOT''' is the local list of all process descriptors in cluster K. A process descriptor copy of P is present in K, as soon as P has a thread in cluster K.
 
+A process can be in four states:
+ * '''RUNNING''' : the process is normally executing.
+ * '''STOPPED''' : the process received a SIGSTOP signal. It can return to RUNNING state by a SIGCONT signal.
+ * '''EXITED''' : the process terminated by an exit() syscall. It will be destroyed by the parent process executing a wait() syscall.
+ * '''KILLED''' : the process received a SIGKILL signal. It will be destroyed by the parent process executing a wait() sys call.
+
 There is a partial list of informations stored in a process descriptor ( process_t  in ALMOS-MKH ):
 - '''PID''' :  proces identifier.
 - '''PPID''' : parent process identifier, 
 - '''PREF''' : extended pointer on the reference process descriptor.
+- '''STATE''': current process state.
 - '''VSL''' : root of the local list of virtual segments defining the memory image.
 - '''GPT''' : generic page table defining the physical memory mapping.