[xemacs-hg @ 2002-04-03 10:47:37 by ben] fix tty problem et al internals/internals.texi: Add section on correctly merging a branch back into the trunk. console-tty.c, eval.c, event-unixoid.c, file-coding.c, file-coding.h, lisp.h, print.c, sysdep.c: Fix data corruption error in print.c from print_depth becoming negative. Borrow primitives internal_bind_int, internal_bind_lisp_object from my stderr-proc ws, soon to be integrated; use them to properly bind print_depth et al. First fix for TTY problem. The basic problem is I switched things so that the TTY I/O is filtered through a coding system, for the support of kterm and such, that speak JIS or similar encodings. (#### I ***swear*** I had this working way back in 19.12.) Anyway, this introduced buffering issues, in which instead of one char being read, it tried to read 1024 chars. I tried setting the stdin descriptor non-blocking, but it doesn't appear to work on Cygwin. (#### Andy, do you know anything about this?) So I fixed it elsewhere. If you get weirdness on the TTY, look in console-tty.c and see how it gets the coding system; maybe there's a way to change it (and if not, there should be!). Also fix warning in sysdep.c.

/* Program to produce output at regular intervals.  */

#include <config.h>

#if __STDC__ || defined(STDC_HEADERS)
#include <stdlib.h>
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#endif

#include <stdio.h>
#include <sys/types.h>

#ifdef WIN32_NATIVE
#define WIN32_LEAN_AND_MEAN
#include <windows.h>
#undef sleep
#define sleep(t) Sleep ((t) * 1000)
#define getppid() (0)
#undef HAVE_SYS_TIME_H
#endif /* WIN32_NATIVE */

#ifdef TIME_WITH_SYS_TIME
#include <sys/time.h>
#include <time.h>
#else
#ifdef HAVE_SYS_TIME_H
#include <sys/time.h>
#else
#include <time.h>
#endif
#endif

int
main (int argc, char *argv[])
{
  int period = 60;

  if (argc > 1)
    period = atoi (argv[1]);

  while (1)
    {
      /* Make sure wakeup stops when Emacs goes away.  */
      if (getppid () == 1)
	return 0;
      printf ("Wake up!\n");
      /* If fflush fails, then our stdout pipe is broken. */
      if (fflush (stdout) != 0)
	return 0;
      /* If using a period of 60, produce the output when the minute
	 changes. */
      if (period == 60)
	{
	  time_t when;
	  struct tm *tp;
	  time (&when);
	  tp = localtime (&when);
	  sleep (60 - tp->tm_sec);
	}
      else
	sleep (period);
    }
}