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* xterm.c: Add CPP tangle from process.c to get definitions for

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FD_SET, etcetera.
	(XTread_socket): Use those macros when testing for dropped connection.
This commit is contained in:
Jim Blandy 1993-06-29 23:07:22 +00:00
parent ddf768c3cf
commit c34efc6cd8
1 changed files with 24 additions and 3 deletions
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27
src/xterm.c
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@ -93,6 +93,27 @@ the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
/*#include <X/Xproto.h> */
#endif /* ! defined (HAVE_X11) */
#ifdef FD_SET
/* We could get this from param.h, but better not to depend on finding that.
And better not to risk that it might define other symbols used in this
file. */
#ifdef FD_SETSIZE
#define MAXDESC FD_SETSIZE
#else
#define MAXDESC 64
#endif
#define SELECT_TYPE fd_set
#else /* no FD_SET */
#define MAXDESC 32
#define SELECT_TYPE int
/* Define the macros to access a single-int bitmap of descriptors. */
#define FD_SET(n, p) (*(p) |= (1 << (n)))
#define FD_CLR(n, p) (*(p) &= ~(1 << (n)))
#define FD_ISSET(n, p) (*(p) & (1 << (n)))
#define FD_ZERO(p) (*(p) = 0)
#endif /* no FD_SET */
/* For sending Meta-characters. Do we need this? */
#define METABIT 0200
@ -3274,12 +3295,12 @@ XTread_socket (sd, bufp, numchars, waitp, expected)
/* AOJ 880406: if select returns true but XPending doesn't, it means that
there is an EOF condition; in other words, that X has died.
Act as if there had been a hangup. */
int fd = ConnectionNumber (x_current_display);
int mask = 1 << fd;
SELECT_TYPE mask;
FD_SET(fd, &mask);
if (0 != select (fd + 1, &mask, (long *) 0, (long *) 0,
(EMACS_TIME) 0)
(EMACS_TIME *) 0)
&& !XStuffPending ())
kill (getpid (), SIGHUP);
}