1 /*- 2 * SPDX-License-Identifier: BSD-3-Clause 3 * 4 * Copyright (c) 1990, 1993, 1994 5 * The Regents of the University of California. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. Neither the name of the University nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 */ 31 32 #include <sys/types.h> 33 #include <sys/sysctl.h> 34 35 #include <stddef.h> 36 37 #include "ps.h" 38 39 fixpt_t ccpu; /* kernel _ccpu variable */ 40 int nlistread; /* if nlist already read. */ 41 unsigned long mempages; /* number of pages of phys. memory */ 42 int fscale; /* kernel _fscale variable */ 43 44 int 45 donlist(void) 46 { 47 size_t oldlen; 48 49 oldlen = sizeof(ccpu); 50 if (sysctlbyname("kern.ccpu", &ccpu, &oldlen, NULL, 0) == -1) 51 return (1); 52 oldlen = sizeof(fscale); 53 if (sysctlbyname("kern.fscale", &fscale, &oldlen, NULL, 0) == -1) 54 return (1); 55 oldlen = sizeof(mempages); 56 if (sysctlbyname("hw.availpages", &mempages, &oldlen, NULL, 0) == -1) 57 return (1); 58 nlistread = 1; 59 return (0); 60 } 61