monit_process.c

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00001 /*
00002  * Copyright (C), 2000-2002 by Contributors to the monit codebase. 
00003  * All Rights Reserved.
00004  *
00005  * This program is free software; you can redistribute it and/or
00006  * modify it under the terms of the GNU General Public License as
00007  * published by the Free Software Foundation; either version 2 of the
00008  * License, or (at your option) any later version.
00009  *
00010  * This program is distributed in the hope that it will be useful, but
00011  * WITHOUT ANY WARRANTY; without even the implied warranty of
00012  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00013  * General Public License for more details.
00014  * 
00015  * You should have received a copy of the GNU General Public License
00016  * along with this program; if not, write to the Free Software Foundation,
00017  * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
00018  */
00019 
00020 #include "config.h"
00021 
00022 #ifdef HAVE_SYS_TYPES_H
00023 #include <sys/types.h>
00024 #endif
00025 
00026 #ifdef HAVE_SYS_STAT_H
00027 #include <sys/stat.h>
00028 #endif
00029 
00030 #ifdef HAVE_FCNTL_H
00031 #include <fcntl.h>
00032 #endif
00033 
00034 #ifdef HAVE_STDLIB_H
00035 #include <stdlib.h>
00036 #endif
00037 
00038 #ifdef TIME_WITH_SYS_TIME
00039 #include <time.h>
00040 
00041 #ifdef HAVE_SYS_TIME
00042 #include <sys/time.h>
00043 #endif
00044 #else
00045 #include <time.h>
00046 #endif
00047 
00048 #ifdef HAVE_SYS_LOADAVG_H
00049 #include <sys/loadavg.h>
00050 #endif
00051 
00052 #ifdef HAVE_STRING_H
00053 #include <string.h>
00054 #endif
00055 
00056 #include <stdio.h>
00057 
00058 #include "monitor.h"
00059 #include "monit_process.h"
00060 #include "process/process.h"
00061 
00074 /* ------------------------------------------------------------------ Public */
00075 
00076 
00077 int include_children= TRUE;
00078 char actionnames[][STRLEN]={"ignore", "alert", "restart", "stop"};
00079 char operatornames[][STRLEN]={"greater than", "less than",
00080                   "equal to", "not equal to"};
00081 char operatorshortnames[][3]={">", "<", "=", "!="};
00082 
00083 
00088 int init_process_info(void) {
00089 
00090   return (init_process_info_sysdep());
00091 
00092 }
00093 
00094 
00102 int update_process_data(Process_T p, pid_t pid) {
00103 
00104   ProcInfo_T pi= p->procinfo;
00105 
00106   pi->pid=pid;
00107 
00108   if (! get_process_info(pi)) {
00109 
00110     return FALSE;
00111     
00112   } 
00113 
00114   return TRUE;
00115 }
00116 
00117 
00124 int compare_resource(int value, Resource_T q) {
00125 
00126   switch ( q->operator ) {
00127 
00128   case RESOURCE_OPERATOR_GREATER:
00129     if ( value > q->limit ) {
00130 
00131       return TRUE;
00132 
00133     } else {
00134 
00135       return FALSE;
00136 
00137     }
00138 
00139   case RESOURCE_OPERATOR_LESS:
00140     if ( value < q->limit ) {
00141 
00142       return TRUE;
00143 
00144     } else {
00145 
00146       return FALSE;
00147 
00148     }
00149 
00150   case RESOURCE_OPERATOR_EQUAL:
00151     if ( value == q->limit ) {
00152 
00153       return TRUE;
00154 
00155     } else {
00156 
00157       return FALSE;
00158 
00159     }
00160 
00161   case RESOURCE_OPERATOR_NOTEQUAL:
00162     if ( value != q->limit ) {
00163 
00164 
00165       return TRUE;
00166 
00167     } else {
00168 
00169       return FALSE;
00170 
00171     }
00172 
00173   default: 
00174 
00175     log("Unknow resource comparison operator.\n");
00176 
00177     /* Internal Alert ??? */
00178 
00179     return FALSE;
00180 
00181   }
00182 }
00183 
00184 
00189 int update_loadavg(void) {
00190 
00191   if ( -1 == getloadavg( Run.loadavg, 3) ) {
00192 
00193     return FALSE;
00194 
00195   }
00196 
00197   return TRUE;
00198 }