commit - 4bef0baf95850b1ee0fa5f5a8fda20872ce59426
commit + 43db87f1fcb51065ef50beae9da8b6310ccf1cae
blob - aa92c2006454034e85b174f5ac99d739af087c84
blob + a3ea6722b11cb223b5f8d23938696125a1fc6c29
--- src/libmux/mux.c
+++ src/libmux/mux.c
return nil;
r->r.l = &mux->lk;
- /* assign the tag */
+ /* assign the tag, add selves to response queue */
qlock(&mux->lk);
tag = gettag(mux, r);
+//print("gettag %p %d\n", r, tag);
+ enqueue(mux, r);
qunlock(&mux->lk);
+
+ /* actually send the packet */
if(tag < 0 || mux->settag(mux, tx, tag) < 0 || _muxsend(mux, tx) < 0){
qlock(&mux->lk);
puttag(mux, r);
return nil;
}
- /* add ourselves to sleep queue */
qlock(&mux->lk);
- enqueue(mux, r);
-
/* wait for our packet */
while(mux->muxer && !r->p){
rsleep(&r->r);
tag = mux->gettag(mux, p);
else
tag = ~0;
+//print("mux tag %d\n", tag);
qlock(&mux->lk);
if(p == nil){ /* eof -- just give up and pass the buck */
dequeue(mux, r);
continue;
}
r2 = mux->wait[tag];
+ if(r2 == nil){
+ fprint(2, "%s: bad rpc tag %ux (no one waiting on that tag)\n", argv0, tag);
+ /* must leak packet! don't know how to free it! */
+ continue;
+ }
r2->p = p;
dequeue(mux, r2);
+ puttag(mux, r2);
rwakeup(&r2->r);
}
mux->muxer = 0;
if(mux->sleep.next != &mux->sleep)
rwakeup(&mux->sleep.next->r);
}
+//print("finished %p\n", r);
p = r->p;
- puttag(mux, r);
qunlock(&mux->lk);
return p;
}