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 /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */ 23 /* All Rights Reserved */ 24 25 26 #ident "%Z%%M% %I% %E% SMI" /* SVr4.0 1.5 */ 27 28 #include "termio.h" 29 30 /* 31 * The following macro computes the number of seconds to sleep 32 * AFTER waiting for the system buffers to be drained. 33 * 34 * Various choices: 35 * 36 * - A percentage (perhaps even >100%) of the time it would 37 * take to print the printer's buffer. Use this if it appears 38 * the printers are affected if the port is closed before they 39 * finish printing. 40 * 41 * - 0. Use this to avoid any extra sleep after waiting for the 42 * system buffers to be flushed. 43 * 44 * - N > 0. Use this to have a fixed sleep after flushing the 45 * system buffers. 46 * 47 * The sleep period can be overridden by a single command line argument. 48 */ 49 /* 25% of the print-full-buffer time, plus 1 */ 50 #define LONG_ENOUGH(BUFSZ,CPS) (1 + ((250 * BUFSZ) / CPS) / 1000) 51 52 extern int tidbit(); 53 54 /** 55 ** main() 56 **/ 57 58 int main (argc, argv) 59 int argc; 60 char *argv[]; 61 { 62 extern char *getenv(); 63 64 short bufsz = -1, 65 cps = -1; 66 67 char *TERM; 68 69 int sleep_time = 0; 70 71 72 /* 73 * Wait for the output to drain. 74 */ 75 ioctl (1, TCSBRK, (struct termio *)1); 76 77 /* 78 * Decide how long to sleep. 79 */ 80 if (argc != 2 || (sleep_time = atoi(argv[1])) < 0) 81 if ((TERM = getenv("TERM"))) { 82 tidbit (TERM, "bufsz", &bufsz); 83 tidbit (TERM, "cps", &cps); 84 if (cps > 0 && bufsz > 0) 85 sleep_time = LONG_ENOUGH(bufsz, cps); 86 } else 87 sleep_time = 2; 88 89 /* 90 * Wait ``long enough'' for the printer to finish 91 * printing what's in its buffer. 92 */ 93 if (sleep_time) 94 sleep (sleep_time); 95 96 exit (0); 97 /*NOTREACHED*/ 98 } 99