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Don't wait for output to drain in pppclose(). Discard output immediately

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for the same reasons as in slclose().

Free the cblock in the canonical queue in pppclose().  This is a no-op in
the usual cases where the tty is being closed or the line discipline is
being switched back to the standard discipline, but it saves a cblock if
the line discipline is being switched to one that doesn't use the canonical
queue.

Add prototypes.  I use `extern' in prototypes for functions with bogus
linkage.  This should be fixed someday.

Continue cleaning up new init stuff yet again.
This commit is contained in:
Bruce Evans 1995-10-05 00:33:27 +00:00
parent 11e67a9f2e
commit 9cdeffd562
1 changed files with 10 additions and 5 deletions
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15
sys/net/if_ppp.c
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@ -69,7 +69,7 @@
* Paul Mackerras (paulus@cs.anu.edu.au).
*/
/* $Id: if_ppp.c,v 1.20 1995/08/30 00:33:19 bde Exp $ */
/* $Id: if_ppp.c,v 1.21 1995/09/09 18:10:23 davidg Exp $ */
/* from if_sl.c,v 1.11 84/10/04 12:54:47 rick Exp */
#include "ppp.h"
@ -151,6 +151,11 @@ static struct linesw pppdisc = {
pppinput, pppstart, ttymodem
};
extern struct ppp_softc *pppalloc __P((pid_t pid));
extern void pppdealloc __P((struct ppp_softc *sc));
extern struct mbuf *ppp_dequeue __P((struct ppp_softc *sc));
extern int ppppktin __P((struct ppp_softc *sc, struct mbuf *m, int ilen));
static int pppasyncstart __P((struct ppp_softc *));
static u_short pppfcs __P((u_short fcs, u_char *cp, int len));
static int pppgetm __P((struct ppp_softc *sc));
@ -191,8 +196,8 @@ static u_short interactive_ports[8] = {
* Called from boot code to establish ppp interfaces.
*/
static void
pppattach(udata)
void *udata;
pppattach(dummy)
void *dummy;
{
register struct ppp_softc *sc;
register int i = 0;
@ -350,9 +355,9 @@ pppclose(tp, flag)
struct mbuf *m;
int s;
if (ttywflush(tp))
ttyflush(tp, FREAD | FWRITE);
ttyflush(tp, FREAD | FWRITE);
s = splimp(); /* paranoid; splnet probably ok */
clist_free_cblocks(&tp->t_canq);
clist_free_cblocks(&tp->t_outq);
tp->t_line = 0;
sc = (struct ppp_softc *)tp->t_sc;