sanchayanmaity/minix
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18 commits

Author SHA1 Message Date
Ben Gras
c977bd8709 Added args to lock() and unlock() to tell them apart, for use 
when lock timing is enabled in minix/config.h.

Added phys_zero() routine to klib386.s that zeroes a range of memory, and
added corresponding system call.
 2005-06-01 09:37:52 +00:00
Jorrit Herder
322ec9ef8b Moved stime, time, times POSIX calls from FS to PM. Removed child time 
accounting from kernel (now in PM).  Large amount of files in this commit
is due to system time problems during development.
 2005-05-31 09:50:51 +00:00
Jorrit Herder
b421423c77 SENDREC now always has flag FRESH_ANSWER to prevent pending notifications 
to be used as answer to a SENDREC call.
 2005-05-30 11:11:40 +00:00
Jorrit Herder
826fee4c6d Fixed clear_proc(): properly release resources (IRQ hooks, notify buffers); 
Cleaned up comments in proc.c (old code still present for comparison);
 2005-05-30 11:05:42 +00:00
Jorrit Herder
852008d669 Kinfo counts lock_notify() and lock_send() calls. 2005-05-27 14:54:40 +00:00
Jorrit Herder
8d9c0886cd Created ECHO system call for testing purposes. 
Furthermore, a quick way to get one's own process number.
 2005-05-27 13:57:00 +00:00
Jorrit Herder
c2be104821 Improved NOTIFY system: fixed a minor error, ignore pending notifications 
on SENDREC system calls. To be done: resource (buffer pool) management;
make it structurally impossible to run out of buffers.
 2005-05-27 12:44:14 +00:00
Jorrit Herder
77c3213948 Optimized scheduling code. Old code is still available withing DEAD_CODE 
and NEW_SCHED_Q definitions. Some minor problems are being traced at the
moment. This commit is meant to backup my files.
  --- Jorrit
 2005-05-26 13:17:57 +00:00
Jorrit Herder
0899f82ab2 Fixed some minor issues with the NOTIFY call. 2005-05-24 14:35:58 +00:00
Ben Gras
168b7f2669 . fixed a recently introduced scheduler (run-queue) bug in proc.c 
. a little (optional) debugging code added to proc.c and associated
  data in proc.h
 2005-05-24 12:32:34 +00:00
Jorrit Herder
ccd17ecfed New NOTIFY system call! Queued at kernel. Duplicate messages (with same source 
and type) are overwritten with newer flags/ arguments. The interface from
within the kernel is lock_notify(). User processes can make a system call with
notify(). NOTIFY fully replaces the old notification mechanism.
 2005-05-24 10:06:17 +00:00
Jorrit Herder
d0a5a5d007 New system call added to PM: getprocnr(int *proc_nr) (like getpid); 
Minor update to scheduling code (unready().
 2005-05-20 09:37:43 +00:00
Jorrit Herder
307c825515 New NOTIFY trap (IPC call) to send queued notification messages. 
The call works. Permission check, restriction of outstanding notifications
to be added. Low level code to make it work from within interrupt handlers
will be added as well.
 2005-05-19 14:05:51 +00:00
Jorrit Herder
1cb880b158 Intermediate update---please await next commit. 2005-05-19 09:36:44 +00:00
Jorrit Herder
614f49b557 Fixed some comments and reorganized some code. 
Fixed minor bug in notify() function.
 2005-05-18 10:36:23 +00:00
Jorrit Herder
ac0995259d *** empty log message *** 2005-05-02 14:30:04 +00:00
Jorrit Herder
89ac678b9b *** empty log message *** 2005-04-29 15:36:43 +00:00
Ben Gras
9865aeaa79 Initial revision 2005-04-21 14:53:53 +00:00