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authormillert <millert@openbsd.org>1999-01-18 19:06:44 +0000
committermillert <millert@openbsd.org>1999-01-18 19:06:44 +0000
commit92dd1ec0a89df25171bc5d61a3d95ea1a68cef0b (patch)
treeb9d1f7bc0ea12a6176e04e01a28222b0364a79ec /lib/libcurses/lib_twait.c
parentupdates from ncurses-4.2-990116 (diff)
downloadwireguard-openbsd-92dd1ec0a89df25171bc5d61a3d95ea1a68cef0b.tar.xz
wireguard-openbsd-92dd1ec0a89df25171bc5d61a3d95ea1a68cef0b.zip
ncurses-4.2-990116
Diffstat (limited to 'lib/libcurses/lib_twait.c')
-rw-r--r--lib/libcurses/lib_twait.c223
1 files changed, 0 insertions, 223 deletions
diff --git a/lib/libcurses/lib_twait.c b/lib/libcurses/lib_twait.c
deleted file mode 100644
index d17d1ea37bd..00000000000
--- a/lib/libcurses/lib_twait.c
+++ /dev/null
@@ -1,223 +0,0 @@
-/* $OpenBSD: lib_twait.c,v 1.4 1998/07/23 21:19:45 millert Exp $ */
-
-/****************************************************************************
- * Copyright (c) 1998 Free Software Foundation, Inc. *
- * *
- * Permission is hereby granted, free of charge, to any person obtaining a *
- * copy of this software and associated documentation files (the *
- * "Software"), to deal in the Software without restriction, including *
- * without limitation the rights to use, copy, modify, merge, publish, *
- * distribute, distribute with modifications, sublicense, and/or sell *
- * copies of the Software, and to permit persons to whom the Software is *
- * furnished to do so, subject to the following conditions: *
- * *
- * The above copyright notice and this permission notice shall be included *
- * in all copies or substantial portions of the Software. *
- * *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
- * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
- * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
- * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
- * THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
- * *
- * Except as contained in this notice, the name(s) of the above copyright *
- * holders shall not be used in advertising or otherwise to promote the *
- * sale, use or other dealings in this Software without prior written *
- * authorization. *
- ****************************************************************************/
-
-/****************************************************************************
- * Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995 *
- * and: Eric S. Raymond <esr@snark.thyrsus.com> *
- ****************************************************************************/
-
-/*
-** lib_twait.c
-**
-** The routine _nc_timed_wait().
-**
-** (This file was originally written by Eric Raymond; however except for
-** comments, none of the original code remains - T.Dickey).
-*/
-
-#include <curses.priv.h>
-
-#if USE_FUNC_POLL
-# include <stropts.h>
-# include <poll.h>
-# if HAVE_SYS_TIME_H
-# include <sys/time.h>
-# endif
-#elif HAVE_SELECT
-# if HAVE_SYS_TIME_H && HAVE_SYS_TIME_SELECT
-# include <sys/time.h>
-# endif
-# if HAVE_SYS_SELECT_H
-# include <sys/select.h>
-# 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 $")
-
-static int _nc_gettime(void)
-{
- int 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;
-#else
-# define PRECISE_GETTIME 0
- res = time(0)*1000;
-#endif
- T(("time: %d msec", res));
- return res;
-}
-
-/*
- * Wait a specified number of milliseconds, returning nonzero if the timer
- * didn't expire before there is activity on the specified file descriptors.
- * The file-descriptors are specified by the mode:
- * 0 - none (absolute time)
- * 1 - ncurses' normal input-descriptor
- * 2 - mouse descriptor, if any
- * 3 - either input or mouse.
- * We return a mask that corresponds to the mode (e.g., 2 for mouse activity).
- *
- * If the milliseconds given are -1, the wait blocks until activity on the
- * descriptors.
- */
-int _nc_timed_wait(int mode, int milliseconds, int *timeleft)
-{
-int fd;
-int count;
-
-int result;
-
-#if USE_FUNC_POLL
-struct pollfd fds[2];
-#elif HAVE_SELECT
-static fd_set set;
-#endif
-
-int starttime, returntime;
-
- T(("start twait: %d milliseconds, mode: %d", milliseconds, mode));
-
-#if PRECISE_GETTIME
-retry:
-#endif
- starttime = _nc_gettime();
-
- count = 0;
-
-#if USE_FUNC_POLL
- if (mode & 1) {
- fds[count].fd = SP->_ifd;
- fds[count].events = POLLIN;
- count++;
- }
- if ((mode & 2)
- && (fd = SP->_mouse_fd) >= 0) {
- fds[count].fd = fd;
- fds[count].events = POLLIN;
- count++;
- }
- result = poll(fds, count, milliseconds);
-
-#elif HAVE_SELECT
- /*
- * select() modifies the fd_set arguments; do this in the
- * loop.
- */
- FD_ZERO(&set);
-
- if (mode & 1) {
- FD_SET(SP->_ifd, &set);
- count = SP->_ifd + 1;
- }
- if ((mode & 2)
- && (fd = SP->_mouse_fd) >= 0) {
- FD_SET(fd, &set);
- count = max(fd, count) + 1;
- }
-
- if (milliseconds >= 0) {
- struct timeval ntimeout;
- ntimeout.tv_sec = milliseconds / 1000;
- ntimeout.tv_usec = (milliseconds % 1000) * 1000;
- result = select(count, &set, NULL, NULL, &ntimeout);
- } else {
- result = select(count, &set, NULL, NULL, NULL);
- }
-#endif
-
- returntime = _nc_gettime();
-
- if (milliseconds >= 0)
- milliseconds -= returntime-starttime;
-
-#if PRECISE_GETTIME
- /*
- * If the timeout hasn't expired, and we've gotten no data,
- * this is probably a system where 'select()' needs to be left
- * alone so that it can complete. Make this process sleep,
- * then come back for more.
- */
- if (result == 0 && milliseconds > 100) {
- napms(100);
- milliseconds -= 100;
- goto retry;
- }
-#endif
-
- /* return approximate time left in milliseconds */
- if (timeleft)
- *timeleft = milliseconds;
-
- T(("end twait: returned %d (%d), remaining time %d msec",
- result, errno, milliseconds));
-
- /*
- * Both 'poll()' and 'select()' return the number of file descriptors
- * that are active. Translate this back to the mask that denotes which
- * file-descriptors, so that we don't need all of this system-specific
- * code everywhere.
- */
- if (result != 0) {
- if (result > 0) {
- result = 0;
-#if USE_FUNC_POLL
- for (count = 0; count < 2; count++) {
- if ((mode & (1 << count))
- && (fds[count].revents & POLLIN)) {
- result |= (1 << count);
- count++;
- }
- }
-#elif HAVE_SELECT
- if ((mode & 2)
- && (fd = SP->_mouse_fd) >= 0
- && FD_ISSET(fd, &set))
- result |= 2;
- if ((mode & 1)
- && FD_ISSET(SP->_ifd, &set))
- result |= 1;
-#endif
- }
- else
- result = 0;
- }
-
- return (result);
-}