1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 /* 23 * Copyright 2005 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */ 28 /* All Rights Reserved */ 29 30 #pragma ident "%Z%%M% %I% %E% SMI" 31 32 #include "termio.h" 33 34 /* 35 * The following macro computes the number of seconds to sleep 36 * AFTER waiting for the system buffers to be drained. 37 * 38 * Various choices: 39 * 40 * - A percentage (perhaps even >100%) of the time it would 41 * take to print the printer's buffer. Use this if it appears 42 * the printers are affected if the port is closed before they 43 * finish printing. 44 * 45 * - 0. Use this to avoid any extra sleep after waiting for the 46 * system buffers to be flushed. 47 * 48 * - N > 0. Use this to have a fixed sleep after flushing the 49 * system buffers. 50 * 51 * The sleep period can be overridden by a single command line argument. 52 */ 53 /* 25% of the print-full-buffer time, plus 1 */ 54 #define LONG_ENOUGH(BUFSZ,CPS) (1 + ((250 * BUFSZ) / CPS) / 1000) 55 56 extern int tidbit(); 57 58 /** 59 ** main() 60 **/ 61 62 int 63 main(int argc, char *argv[]) 64 { 65 extern char *getenv(); 66 67 short bufsz = -1, 68 cps = -1; 69 70 char *TERM; 71 72 int sleep_time = 0; 73 74 75 /* 76 * Wait for the output to drain. 77 */ 78 ioctl (1, TCSBRK, (struct termio *)1); 79 80 /* 81 * Decide how long to sleep. 82 */ 83 if (argc != 2 || (sleep_time = atoi(argv[1])) < 0) 84 if ((TERM = getenv("TERM"))) { 85 tidbit (TERM, "bufsz", &bufsz); 86 tidbit (TERM, "cps", &cps); 87 if (cps > 0 && bufsz > 0) 88 sleep_time = LONG_ENOUGH(bufsz, cps); 89 } else 90 sleep_time = 2; 91 92 /* 93 * Wait ``long enough'' for the printer to finish 94 * printing what's in its buffer. 95 */ 96 if (sleep_time) 97 sleep (sleep_time); 98 99 return (0); 100 } 101