update to ncurses-5.0-19991127

1 files changed, 64 insertions, 19 deletions

diff --git a/lib/libcurses/tty/lib_twait.c b/lib/libcurses/tty/lib_twait.c
index 5a7cffeae2b..0d330245f48 100644
--- a/lib/libcurses/tty/lib_twait.c
+++ b/lib/libcurses/tty/lib_twait.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: lib_twait.c,v 1.1 1999/01/18 19:10:27 millert Exp $	*/
+/*	$OpenBSD: lib_twait.c,v 1.2 1999/11/28 17:49:54 millert Exp $	*/
 
 /****************************************************************************
  * Copyright (c) 1998 Free Software Foundation, Inc.                        *
@@ -42,6 +42,10 @@
 **	comments, none of the original code remains - T.Dickey).
 */
 
+#ifdef __BEOS__
+#include <OS.h>
+#endif
+
 #include <curses.priv.h>
 
 #if USE_FUNC_POLL
@@ -59,28 +63,32 @@
 # endif
 #endif
 
-#ifdef __BEOS__
-/* BeOS select() only works on sockets.  Use the tty hack instead */
-#include <socket.h>
-#define select check_select
-#endif
-
-MODULE_ID("$From: lib_twait.c,v 1.32 1998/06/06 22:44:14 tom Exp $")
+MODULE_ID("$From: lib_twait.c,v 1.34 1999/10/16 21:25:10 tom Exp $")
 
-static int _nc_gettime(void)
+static long _nc_gettime(bool first)
 {
-	int res;
+	long res;
 
 #if HAVE_GETTIMEOFDAY
 # define PRECISE_GETTIME 1
-	struct timeval t;
-	gettimeofday(&t, (struct timezone *)0);
-	res = t.tv_sec*1000 + t.tv_usec/1000;
+	static struct timeval t0;
+	struct timeval t1;
+	gettimeofday(&t1, (struct timezone *)0);
+	if (first) {
+		t0 = t1;
+	}
+	res = (t1.tv_sec  - t0.tv_sec)  * 1000
+	    + (t1.tv_usec - t0.tv_usec) / 1000;
 #else
 # define PRECISE_GETTIME 0
-	res = time(0)*1000;
+	static time_t t0;
+	time_t t1 = time((time_t*)0);
+	if (first) {
+		t0 = t1;
+	}
+	res = (t1 - t0) * 1000;
 #endif
-	T(("time: %d msec", res));
+	T(("%s time: %ld msec", first ? "get" : "elapsed", res));
 	return res;
 }
 
@@ -106,18 +114,19 @@ int result;
 
 #if USE_FUNC_POLL
 struct pollfd fds[2];
+#elif defined(__BEOS__)
 #elif HAVE_SELECT
 static fd_set set;
 #endif
 
-int starttime, returntime;
+long starttime, returntime;
 
 	T(("start twait: %d milliseconds, mode: %d", milliseconds, mode));
 
 #if PRECISE_GETTIME
 retry:
 #endif
-	starttime = _nc_gettime();
+	starttime = _nc_gettime(TRUE);
 
 	count = 0;
 
@@ -135,6 +144,40 @@ retry:
 	}
 	result = poll(fds, count, milliseconds);
 
+#elif defined(__BEOS__)
+	/*
+	 * BeOS's select() is declared in socket.h, so the configure script does
+	 * not see it.  That's just as well, since that function works only for
+	 * sockets.  This (using snooze and ioctl) was distilled from Be's patch
+	 * for ncurses which uses a separate thread to simulate select().
+	 *
+	 * FIXME: the return values from the ioctl aren't very clear if we get
+	 * interrupted.
+	 */
+	result = 0;
+	if (mode & 1) {
+		bigtime_t d;
+		bigtime_t useconds = milliseconds * 1000;
+		int n, howmany;
+
+		if (useconds == 0) /* we're here to go _through_ the loop */
+			useconds = 1;
+
+		for (d = 0; d < useconds; d += 5000) {
+			n = 0;
+			howmany = ioctl(0, 'ichr', &n);
+			if (howmany >= 0 && n > 0) {
+				result = 1;
+				break;
+			}
+			if (useconds > 1)
+				snooze(5000);
+			milliseconds -= 5;
+		}
+	} else if (milliseconds > 0) {
+		snooze(milliseconds * 1000);
+		milliseconds = 0;
+	}
 #elif HAVE_SELECT
 	/*
 	 * select() modifies the fd_set arguments; do this in the
@@ -162,10 +205,10 @@ retry:
 	}
 #endif
 
-	returntime = _nc_gettime();
+	returntime = _nc_gettime(FALSE);
 
 	if (milliseconds >= 0)
-		milliseconds -= returntime-starttime;
+		milliseconds -= (returntime - starttime);
 
 #if PRECISE_GETTIME
 	/*
@@ -205,6 +248,8 @@ retry:
 					count++;
 				}
 			}
+#elif defined(__BEOS__)
+			result = 1;	/* redundant, but simple */
 #elif HAVE_SELECT
 			if ((mode & 2)
 			 && (fd = SP->_mouse_fd) >= 0