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pause.c revision 1.6.20.1 
      1 /*	$NetBSD: pause.c,v 1.6.20.1 2007/01/21 17:43:35 jdc Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 1999 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Julian Coleman.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  * 3. All advertising materials mentioning features or use of this software
     19  *    must display the following acknowledgement:
     20  *        This product includes software developed by the NetBSD
     21  *        Foundation, Inc. and its contributors.
     22  * 4. Neither the name of The NetBSD Foundation nor the names of its
     23  *    contributors may be used to endorse or promote products derived
     24  *    from this software without specific prior written permission.
     25  *
     26  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     27  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     28  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     29  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     30  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     31  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     32  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     33  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     34  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     35  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     36  * POSSIBILITY OF SUCH DAMAGE.
     37  */
     38 
     39 #include <sys/cdefs.h>
     40 #ifndef lint
     41 __RCSID("$NetBSD: pause.c,v 1.6.20.1 2007/01/21 17:43:35 jdc Exp $");
     42 #endif				/* not lint */
     43 
     44 #include <stdarg.h>
     45 #include <stdlib.h>
     46 #include <sys/time.h>
     47 
     48 #include "curses.h"
     49 #include "curses_private.h"
     50 
     51 /*
     52  * napms --
     53  *	Sleep for ms milliseconds.
     54  */
     55 int
     56 napms(int ms)
     57 {
     58 	struct timespec	ts;
     59 
     60 #ifdef DEBUG
     61 	__CTRACE(__CTRACE_MISC, "napms: %d\n", ms);
     62 #endif
     63 	ts.tv_sec = ms / 1000;
     64 	ts.tv_nsec = (ms % 1000) * 1000000;
     65 	(void) nanosleep(&ts, NULL);
     66 	return(OK);
     67 }
     68 
     69 /*
     70  * delay_output --
     71  *	Pause output using terminal pad character.
     72  */
     73 int
     74 delay_output(int ms)
     75 {
     76 	char *delstr;
     77 
     78 #ifdef DEBUG
     79 	__CTRACE(__CTRACE_MISC, "delay_output: %d\n", ms);
     80 #endif
     81 	if (!_cursesi_screen->pad_char)
     82 		return(napms(ms));
     83 
     84 	if (asprintf(&delstr, "%d", ms) == -1)
     85 		return (ERR);
     86 	tputs (delstr, 0, __cputchar);
     87 	free(delstr);
     88 	return (OK);
     89 }
     90