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handle EINTR in the termios operations, reported by the GHC folks

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This commit is contained in:
christos 2008-07-30 13:00:46 +00:00
parent b89762695b
commit 365dab42f3
1 changed files with 32 additions and 10 deletions
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42
lib/libedit/tty.c
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@ -1,4 +1,4 @@
/* $NetBSD: tty.c,v 1.25 2006/03/18 09:09:41 christos Exp $ */
/* $NetBSD: tty.c,v 1.26 2008/07/30 13:00:46 christos Exp $ */
/*-
* Copyright (c) 1992, 1993
@ -37,7 +37,7 @@
#if 0
static char sccsid[] = "@(#)tty.c 8.1 (Berkeley) 6/4/93";
#else
__RCSID("$NetBSD: tty.c,v 1.25 2006/03/18 09:09:41 christos Exp $");
__RCSID("$NetBSD: tty.c,v 1.26 2008/07/30 13:00:46 christos Exp $");
#endif
#endif /* not lint && not SCCSID */
@ -445,13 +445,12 @@ private const ttymodes_t ttymodes[] = {
#define tty_getty(el, td) tcgetattr((el)->el_infd, (td))
#define tty_setty(el, td) tcsetattr((el)->el_infd, TCSADRAIN, (td))
#define tty__gettabs(td) ((((td)->c_oflag & TAB3) == TAB3) ? 0 : 1)
#define tty__geteightbit(td) (((td)->c_cflag & CSIZE) == CS8)
#define tty__cooked_mode(td) ((td)->c_lflag & ICANON)
private int tty_getty(EditLine *, struct termios *);
private int tty_setty(EditLine *, int, const struct termios *);
private int tty__getcharindex(int);
private void tty__getchar(struct termios *, unsigned char *);
private void tty__setchar(struct termios *, unsigned char *);
@ -460,6 +459,29 @@ private int tty_setup(EditLine *);
#define t_qu t_ts
/* tty_getty():
* Wrapper for tcgetattr to handle EINTR
*/
private int
tty_getty(EditLine *el, struct termios *t)
{
int rv;
while ((rv = tcgetattr(el->el_infd, t)) == -1 && errno == EINTR)
continue;
return rv;
}
/* tty_setty():
* Wrapper for tcsetattr to handle EINTR
*/
private int
tty_setty(EditLine *el, int action, const struct termios *t)
{
int rv;
while ((rv = tcsetattr(el->el_infd, action, t)) == -1 && errno == EINTR)
continue;
return rv;
}
/* tty_setup():
* Get the tty parameters and initialize the editing state
@ -521,7 +543,7 @@ tty_setup(EditLine *el)
el->el_tty.t_c[TS_IO][rst];
}
tty__setchar(&el->el_tty.t_ex, el->el_tty.t_c[EX_IO]);
if (tty_setty(el, &el->el_tty.t_ex) == -1) {
if (tty_setty(el, TCSADRAIN, &el->el_tty.t_ex) == -1) {
#ifdef DEBUG_TTY
(void) fprintf(el->el_errfile,
"tty_setup: tty_setty: %s\n",
@ -1050,7 +1072,7 @@ tty_rawmode(EditLine *el)
}
}
}
if (tty_setty(el, &el->el_tty.t_ed) == -1) {
if (tty_setty(el, TCSADRAIN, &el->el_tty.t_ed) == -1) {
#ifdef DEBUG_TTY
(void) fprintf(el->el_errfile, "tty_rawmode: tty_setty: %s\n",
strerror(errno));
@ -1075,7 +1097,7 @@ tty_cookedmode(EditLine *el)
if (el->el_flags & EDIT_DISABLED)
return (0);
if (tty_setty(el, &el->el_tty.t_ex) == -1) {
if (tty_setty(el, TCSADRAIN, &el->el_tty.t_ex) == -1) {
#ifdef DEBUG_TTY
(void) fprintf(el->el_errfile,
"tty_cookedmode: tty_setty: %s\n",
@ -1111,7 +1133,7 @@ tty_quotemode(EditLine *el)
el->el_tty.t_qu.c_lflag &= ~el->el_tty.t_t[QU_IO][MD_LIN].t_clrmask;
el->el_tty.t_qu.c_lflag |= el->el_tty.t_t[QU_IO][MD_LIN].t_setmask;
if (tty_setty(el, &el->el_tty.t_qu) == -1) {
if (tty_setty(el, TCSADRAIN, &el->el_tty.t_qu) == -1) {
#ifdef DEBUG_TTY
(void) fprintf(el->el_errfile, "QuoteModeOn: tty_setty: %s\n",
strerror(errno));
@ -1132,7 +1154,7 @@ tty_noquotemode(EditLine *el)
if (el->el_tty.t_mode != QU_IO)
return (0);
if (tty_setty(el, &el->el_tty.t_ed) == -1) {
if (tty_setty(el, TCSADRAIN, &el->el_tty.t_ed) == -1) {
#ifdef DEBUG_TTY
(void) fprintf(el->el_errfile, "QuoteModeOff: tty_setty: %s\n",
strerror(errno));