Changeset 407 for trunk/kernel/kern/scheduler.h

Timestamp:

Nov 7, 2017, 3:08:12 PM (6 years ago)

Author:

alain

Message:

First implementation of fork/exec.

File:

• trunk/kernel/kern/scheduler.h (modified) (3 diffs)

trunk/kernel/kern/scheduler.h

@@ -74 +74 @@
 
 /********************************************************************************************* 
- * This function handles pending signals for all registered threads, and tries to make 
- * a context switch for the core running the calling thread.
- * - If the <next> argument is not NULL, this next thread starts execution.
- * - If <next> is NULL, it calls the sched_select() function. If there is a runable thread
- *   (other than current thread or idle thread), this selected thread starts execution.
- * - If there is no other runable thread, the calling thread continues execution.
- * - If there is no runable thread, the idle thread is executed.
- *********************************************************************************************
- * @ next  : local pointer on next thread to run / call sched_select() if NULL.
+ * This function handles pending signals for all registered threads, and calls the 
+ * sched_select() function to make a context switch for the core running the calling thread.
  ********************************************************************************************/
-void sched_yield( struct thread_s * next );
+void sched_yield();
 
 /*********************************************************************************************
@@ -96 +89 @@
 /********************************************************************************************* 
  * This function is used by the scheduler of a given core to actually kill a thread that has 
- * the SIG_KILL signal set (following a thread_exit() or a thread_kill() event).
+ * the SIG_KILL / SIG_SUICIDE signal set (following a thread_exit() or a thread_kill() event).
  * - It checks that the thread has released all locks => panic otherwise...
- * - It detach the thread from the local process descriptor.
  * - It removes the thread from the scheduler.
- * - It release physical memory allocated for thread descriptor.
+ * - It reset the SIG_KILL signal to acknoledge the killer.
+ * - In case of SIG_SUCIDE, it removes the detached thread from its process, and destroys it.
  *********************************************************************************************
  * @ thread  : local pointer on the thread descriptor.
@@ -121 +114 @@
 
 /********************************************************************************************* 
- * This function display the internal state of the calling core scheduler.
+ * This function display the internal state of the local core identified by its <lid>.
+ *********************************************************************************************
+ * @ lid      : local index of target core.
  ********************************************************************************************/
-void sched_display();
+void sched_display( lid_t lid );