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 (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 22 /* 23 * Copyright 2008 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 #pragma ident "%Z%%M% %I% %E% SMI" 28 29 #include <stdio.h> 30 #include <sys/types.h> 31 #include <dirent.h> 32 #include <stdarg.h> 33 #include <stddef.h> 34 #include <stdlib.h> 35 #include <dlfcn.h> 36 #include <door.h> 37 #include <errno.h> 38 #include <fcntl.h> 39 #include <strings.h> 40 #include <unistd.h> 41 #include <synch.h> 42 #include <syslog.h> 43 #include <pthread.h> 44 #include <thread.h> 45 #include <signal.h> 46 #include <limits.h> 47 #include <locale.h> 48 #include <sys/stat.h> 49 #include <sys/systeminfo.h> 50 #include <sys/wait.h> 51 #include <sys/processor.h> 52 #include <ctype.h> 53 #include <poll.h> 54 #include <sys/wait.h> 55 #include <sys/swap.h> 56 57 #include <fpsapi.h> 58 #include "messages.h" 59 #include "fpsd.h" 60 61 /* Exported Functions */ 62 void fps_door_handler(void *cookie, char *argp, size_t asize, 63 door_desc_t *dp, uint_t n_desc); 64 65 /* Used by get_free_swap() */ 66 static uint64_t 67 ctok(int clicks) 68 { 69 static int factor = -1; 70 71 if (factor == -1) factor = ((int)sysconf(_SC_PAGESIZE)) >> 10; 72 return (clicks*factor); 73 } 74 75 /* return the available free swap space in unit of MB */ 76 uint64_t 77 get_free_swap(void) 78 { 79 struct anoninfo ai; 80 unsigned freemem; 81 82 if (swapctl(SC_AINFO, &ai) != -1) { 83 /* in the unit of KB */ 84 freemem = (int)(ctok(ai.ani_max) - ctok(ai.ani_resv)); 85 } 86 else 87 freemem = 0; 88 89 return (freemem/1024); 90 } 91 92 /* 93 * Wait for n secs. Don't use sleep due to signal behaviours. 94 * Also be aware of poll getting interrupted. 95 */ 96 97 void 98 fps_wait_secs(int secs) 99 { 100 time_t cur = time(NULL); 101 102 if (secs <= 0) 103 return; 104 105 do { 106 if (poll(NULL, 0, secs*1000) == 0) 107 break; 108 secs -= (int)(time(NULL) - cur); 109 cur = time(NULL); 110 } while (secs > 0); 111 } 112 113 /*ARGSUSED*/ 114 void 115 fps_door_handler(void *cookie, char *argp, size_t asize, 116 door_desc_t *dp, uint_t n_desc) 117 { 118 fps_event_t *evtp = NULL; 119 fps_event_reply_t reply; 120 121 reply.result = -1; /* -1 failure. 0 success */ 122 123 if (argp == NULL) 124 (void) door_return((char *)&reply, sizeof (reply), NULL, 0); 125 126 /*LINTED*/ 127 evtp = (fps_event_t *)argp; 128 129 if (cookie != FPS_DOOR_COOKIE) 130 (void) door_return((char *)&reply, sizeof (reply), NULL, 0); 131 132 fpsd_message(FPSD_NO_EXIT, FPS_INFO, 133 DOOR_HNDLR_MSG, 134 evtp->version, evtp->type, evtp->length); 135 136 reply.result = 0; 137 (void) door_return((char *)&reply, sizeof (reply), NULL, 0); 138 139 } 140