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32 Commits

Author SHA1 Message Date
Jorrit Herder
a3d2f35993 Fixed minor bug in PM's child time administration. 2005-06-01 08:55:22 +00:00
Jorrit Herder
0165662cd9 Replaced flagalrm() timers with another technique to check for timeouts. 
This allowed removing the p_flagarlm timer from the kernel's process table.
Furthermore, I merged p_syncalrm and p_signalrm into p_alarm_timer to save
even more space. Note that processes can no longer have both a signal and
synchronous alarm timer outstanding as of now.
 2005-05-31 14:43:04 +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
804cb810d0 added a debugging functionality in system/debugging.c (to check sanity of 
run queues) and associated prototype in system.h
 2005-05-24 12:33:03 +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
Ben Gras
0f55ebe90a Initialisation required for optional debugging code. 2005-05-24 12:30:51 +00:00
Ben Gras
6a3519f3a8 Added 2 checks to mapping function - one for overflow (virtual address + 
size wraparound), one to see if the size fits in the designated segment.

It seems this check wasn't done. This came to light when trying to pre-check
the users buffer for read() and write() in using the vectored virtual
copy system call in servers/fs/read.c.
 2005-05-24 12:30:29 +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
Ben Gras
cafbbedbba Fix to let FXP driver send messages. 
Removed banner talking about the known hang-bug (it's fixed,
practically speaking).
 2005-05-20 12:39:36 +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
Philip Homburg
129b82d207 Added fxp driver for the Intel Pro/100 series ethernet cards 
Print PC in hex for easier debugging.
 2005-05-19 13:27:05 +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
1ecc6bf3b3 Removed 'system process' magic from PM and FS. 2005-05-13 08:57:08 +00:00
Ben Gras
d0c3e8f818 . added rm_irq_handler which un-links an irq handler from the linked 
list of handlers, callable by irqctl system call
 . workaround for hanging keyboard bug after shutdown.. if key is pressed
   during or after shutdown procedure, keyboard stops working. It looks like
   irq 1 gets stuck high if no keyboard reading is done (e.g. because the
   irq is masked or tty driver has exited). Workaround is to leave irqs
   enabled until the last second, and call shutdown() immediately after the
   last driver has stopped (tty task). This way the chance of an unserviced
   interrupt occuring is negligible.
 2005-05-12 16:06:37 +00:00
Jorrit Herder
fbe1641bd3 User-space networking! 
- RTL8139 driver moved to user-space;
- PCI code moved to user-space;
Fixed IRQ hook dump at IS server.
 2005-05-11 09:02:00 +00:00
Jorrit Herder
ab39ce451b Fixed some system call checks; 
Added SYS_PHYSVCOPY system call;
Fixed IRQ hooks dump in IS server;
 2005-05-10 11:06:24 +00:00
Ben Gras
3afa217777 Fixed compiler warnings about kprintf() argument 2005-05-09 08:54:18 +00:00
Ben Gras
e8973f33d4 *** empty log message *** 2005-05-04 09:31:54 +00:00
Ben Gras
14b68c70c4 Fixed some compiler breakage (MM_PROC_NR renamed) 2005-05-03 08:54:01 +00:00
Jorrit Herder
83a31f2cda *** empty log message *** 2005-05-02 14:38:21 +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