diff options
Diffstat (limited to 'sys/isa')
| -rw-r--r-- | sys/isa/sio.c | 32 |
1 files changed, 6 insertions, 26 deletions
diff --git a/sys/isa/sio.c b/sys/isa/sio.c index a428eeb..97f9dd7 100644 --- a/sys/isa/sio.c +++ b/sys/isa/sio.c @@ -31,7 +31,7 @@ * SUCH DAMAGE. * * from: @(#)com.c 7.5 (Berkeley) 5/16/91 - * $Id: sio.c,v 1.106 1995/07/29 04:05:57 bde Exp $ + * $Id: sio.c,v 1.107 1995/07/29 08:33:13 bde Exp $ */ #include "sio.h" @@ -1548,31 +1548,6 @@ repeat: if (incc <= 0 || !(tp->t_state & TS_ISOPEN)) continue; /* - * XXX only do this when we bypass ttyinput. - */ - if (tp->t_rawq.c_cc + incc >= RB_I_HIGH_WATER - && (com->state & CS_RTS_IFLOW || tp->t_iflag & IXOFF) - && !(tp->t_state & TS_TBLOCK) - /* - * XXX - need flow control for all line disciplines. - * Only have it in standard one now. - */ - && linesw[tp->t_line].l_rint == ttyinput) { - int putc_status = 0; - - if ((tp->t_iflag & IXOFF - && tp->t_cc[VSTOP] != _POSIX_VDISABLE - && (putc_status = putc(tp->t_cc[VSTOP], - &tp->t_outq)) == 0) - || com->state & CS_RTS_IFLOW) { - tp->t_state |= TS_TBLOCK; - ttstart(tp); - if (putc_status != 0) - /* Try again later. */ - tp->t_state &= ~TS_TBLOCK; - } - } - /* * Avoid the grotesquely inefficient lineswitch routine * (ttyinput) in "raw" mode. It usually takes about 450 * instructions (that's without canonical processing or echo!). @@ -1580,6 +1555,11 @@ repeat: * call overhead). */ if (tp->t_state & TS_CAN_BYPASS_L_RINT) { + if (tp->t_rawq.c_cc + incc >= RB_I_HIGH_WATER + && (com->state & CS_RTS_IFLOW + || tp->t_iflag & IXOFF) + && !(tp->t_state & TS_TBLOCK)) + ttyblock(tp); tk_nin += incc; tk_rawcc += incc; tp->t_rawcc += incc; |
