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(process_send_signal) [SIGNALS_VIA_CHARACTERS, HAVE_TERMIOS]: Clean up.

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Do nothing if the character is CVDISABLE.
This commit is contained in:
Richard M. Stallman 2004-08-16 22:57:26 +00:00
parent d9639b25df
commit 7f916a363e
1 changed files with 13 additions and 10 deletions
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23
src/process.c
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@ -5549,29 +5549,32 @@ process_send_signal (process, signo, current_group, nomsg)
work. If the system has it, use it. */
#ifdef HAVE_TERMIOS
struct termios t;
cc_t *sig_char = NULL;
tcgetattr (XINT (p->infd), &t);
switch (signo)
{
case SIGINT:
tcgetattr (XINT (p->infd), &t);
send_process (proc, &t.c_cc[VINTR], 1, Qnil);
return;
sig_char = &t.c_cc[VINTR];
break;
case SIGQUIT:
tcgetattr (XINT (p->infd), &t);
send_process (proc, &t.c_cc[VQUIT], 1, Qnil);
return;
sig_char = &t.c_cc[VQUIT];
break;
case SIGTSTP:
tcgetattr (XINT (p->infd), &t);
#if defined (VSWTCH) && !defined (PREFER_VSUSP)
send_process (proc, &t.c_cc[VSWTCH], 1, Qnil);
sig_char = &t.c_cc[VSWTCH];
#else
send_process (proc, &t.c_cc[VSUSP], 1, Qnil);
sig_char = &t.c_cc[VSUSP];
#endif
return;
break;
}
if (sig_char && *sig_char != CVDISABLE)
send_process (proc, sig_char, 1, Qnil);
return;
#else /* ! HAVE_TERMIOS */
/* On Berkeley descendants, the following IOCTL's retrieve the