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New NOTIFY trap (IPC call) to send queued notification messages.

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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.
This commit is contained in:
Jorrit Herder
2005-05-19 14:05:51 +00:00
parent 129b82d207
commit 307c825515
13 changed files with 151 additions and 30 deletions
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8
kernel/system.c
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@@ -198,14 +198,14 @@ int proc_nr; /* slot of process to clean up */
if (rc->p_flags & SENDING) {
/* Check all proc slots to see if the exiting process is queued. */
for (rp = BEG_PROC_ADDR; rp < END_PROC_ADDR; rp++) {
if (rp->p_callerq == NIL_PROC) continue;
if (rp->p_callerq == rc) {
if (rp->p_caller_q == NIL_PROC) continue;
if (rp->p_caller_q == rc) {
/* Exiting process is on front of this queue. */
rp->p_callerq = rc->p_sendlink;
rp->p_caller_q = rc->p_sendlink;
break;
} else {
/* See if exiting process is in middle of queue. */
np = rp->p_callerq;
np = rp->p_caller_q;
while ( ( xp = np->p_sendlink) != NIL_PROC) {
if (xp == rc) {
np->p_sendlink = xp->p_sendlink;