cachechars() used to skip over characters on its own when
loadchar() could not find the character or a PJW replacement.
this resulted in wrong width calculation. now we just return
and handle the case inside _string and _stringwidth.
fix subfont leak in stringwidth()
remove annoying prints in stringwidth()
scrollwheel now works proportional to y mouse position.
special case is when shift is hold down. then scrollwheel
will work like before and scroll one line up or down.
from erik quanstros 9fans post:
i think the list insertion code needs a single-read
test that f->alarm != 0. to prevent the 0 from
acting like a fencepost. e.g. trying to insert -10 into
list -40 -30 0 -20.
if(alarms.head) {
l = &alarms.head;
for(f = *l; f; f = f->palarm) {
>> fw = f->alarm;
>> if(fw != 0 && (long)(fw - when) >= 0) {
up->palarm = f;
*l = up;
goto done;
}
l = &f->palarm;
}
*l = up;
}
disabling mouse packet streaming command 0xf5 can fail
when a packet is currently transmitted.
this can be seen when one moves the mouse while running:
while(){echo accelerated >/dev/mousectl; sleep 0.5}
make sure not to dereference Proc* nil pointer. this can potentially
happen from devip which has code like:
if(er->read4p)
postnote(er->read4p, 1, "unbind", 0);
the process it is about to kill can zero er->read4p at any time,
so there is the possibility of the condition to be true and then
er->read4p becoming nil.
check if the process has already exited (p->pid == 0) in postnote()
under p->debug qlock.
when alarmkproc is commited to send the alarm note to the process,
the process might have exited already, or worse, being reused for
another process. pexit() zeros p->alarm at the beginning, but the
kalarmproc() might read p->alarm before pexit() zeroed it, decide
to send the note, then get preempted and pexit() releases the proc.
once kalarmproc() is resumed, the proc might be already something
different and we send the note to the wrong thing.
we now check p->alarm under the debug qlock. that way, pexit()
cannot make progress while we test the condition.
remove the error label arround postnote(). postnote does not raise
error.
make sure noteid is valid (>0).
prohibit changing note group of kernel processes. this is also
checked for in pgrpnote().
prevent "none" user from changing its note group to another "none"
sessions. this would allow him to send notes other none processes
other than its own.
this works differently from mischiefs original patch. instead of
overloading the address bar, we popup our own enter box. the
function can be invoked from the menu or by hitting ^F.
with window -m, properly remove the old wsys from /dev before
binding new window to it, so the original window wont leak
into the new namespace.
do not pass -pid when $wsys does not refer to a local running rio.
cleanup environment before running sub-process.
set window label consistentently no matter if -m is used or not.
