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nonblock

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This commit is contained in:
rsc 2006-06-25 21:04:52 +00:00
parent b733ffba4f
commit 2d2e5c71f7
2 changed files with 132 additions and 43 deletions
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17
src/libmux/io.c
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@ -74,7 +74,7 @@ _muxsendproc(void *v)
}
void*
_muxrecv(Mux *mux)
_muxrecv(Mux *mux, int canblock)
{
void *p;
@ -88,15 +88,24 @@ _muxrecv(Mux *mux)
*/
if(mux->readq){
qunlock(&mux->lk);
return _muxqrecv(mux->readq);
if(canblock)
return _muxqrecv(mux->readq);
return _muxnbqrecv(mux->readq);
}
qlock(&mux->inlk);
qunlock(&mux->lk);
p = mux->recv(mux);
if(canblock)
p = mux->recv(mux);
else{
if(mux->nbrecv)
p = mux->nbrecv(mux);
else
p = nil;
}
qunlock(&mux->inlk);
/*
if(!p)
if(!p && canblock)
vthangup(mux);
*/
return p;