o5r/plan9port
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

allow lock passing

Browse source
This commit is contained in:
rsc 2005-01-07 20:52:07 +00:00
parent 8b549a6214
commit 1aa9c533e0
1 changed files with 2 additions and 1 deletions
Download patch file Download diff file Expand all files Collapse all files

3
src/libthread/thread.c
View file

@ -344,9 +344,10 @@ threadqunlock(QLock *l, ulong pc)
{
lock(&l->l);
//print("qlock unlock %p @%#x by %p (owner %p)\n", l, pc, (*threadnow)(), l->owner);
if(l->owner != (*threadnow)()){
if(l->owner == 0){
fprint(2, "%s: qunlock pc=0x%lux owner=%p self=%p oops\n",
argv0, pc, l->owner, (*threadnow)());
abort();
}
if((l->owner = l->waiting.head) != nil){
delthread(&l->waiting, l->owner);