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/* |
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* i-scream central monitoring system |
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* http://www.i-scream.org |
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* Copyright (C) 2000-2004 i-scream |
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* |
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* This library is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Lesser General Public |
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* License as published by the Free Software Foundation; either |
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* version 2.1 of the License, or (at your option) any later version. |
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* |
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* This library is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public |
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* License along with this library; if not, write to the Free Software |
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
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* 02111-1307 USA |
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* |
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* $Id: process_stats.c,v 1.42 2004/04/04 22:09:32 tdb Exp $ |
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*/ |
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|
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#ifdef HAVE_CONFIG_H |
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#include "config.h" |
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#endif |
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|
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#include "statgrab.h" |
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#if defined(SOLARIS) || defined(LINUX) |
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#include <stdio.h> |
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#include <stdlib.h> |
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#include <sys/types.h> |
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#include <dirent.h> |
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#include <string.h> |
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#endif |
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|
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#ifdef SOLARIS |
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#include <procfs.h> |
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#include <limits.h> |
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#define PROC_LOCATION "/proc" |
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#define MAX_FILE_LENGTH PATH_MAX |
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#endif |
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#ifdef LINUX |
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#include <limits.h> |
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#include <unistd.h> |
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#include <sys/stat.h> |
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#include <fcntl.h> |
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#define PROC_LOCATION "/proc" |
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#define MAX_FILE_LENGTH PATH_MAX |
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#endif |
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#ifdef ALLBSD |
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#include <stdlib.h> |
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#include <sys/param.h> |
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#include <sys/sysctl.h> |
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#if defined(FREEBSD) || defined(DFBSD) |
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#include <sys/user.h> |
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#else |
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#include <sys/proc.h> |
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#endif |
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#include <string.h> |
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#include <paths.h> |
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#include <fcntl.h> |
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#include <limits.h> |
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#if (defined(FREEBSD) && !defined(FREEBSD5)) || defined(DFBSD) |
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#include <kvm.h> |
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#include <tools.h> |
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#endif |
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#include <unistd.h> |
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#endif |
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|
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int get_proc_snapshot(proc_state_t **ps){ |
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proc_state_t *proc_state = NULL; |
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proc_state_t *proc_state_ptr; |
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int proc_state_size = 0; |
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#ifdef ALLBSD |
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int mib[4]; |
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size_t size; |
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struct kinfo_proc *kp_stats; |
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int procs, i; |
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char *proctitle; |
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#if (defined(FREEBSD) && !defined(FREEBSD5)) || defined(DFBSD) |
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kvm_t *kvmd; |
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char **args; |
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int alloc; |
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#else |
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long buflen; |
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char *p; |
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#endif |
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#endif |
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#if defined(SOLARIS) || defined(LINUX) |
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DIR *proc_dir; |
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struct dirent *dir_entry; |
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char filename[MAX_FILE_LENGTH]; |
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FILE *f; |
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#ifdef SOLARIS |
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psinfo_t process_info; |
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#endif |
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#ifdef LINUX |
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char s; |
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/* If someone has a executable of 4k filename length, they deserve to get it truncated :) */ |
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char ps_name[4096]; |
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char *ptr; |
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static char *psargs = NULL; |
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static int psarg_size = 0; |
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unsigned long stime, utime; |
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int x; |
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int fn; |
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int toread; |
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ssize_t size; |
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int t_read; |
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#endif |
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|
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if((proc_dir=opendir(PROC_LOCATION))==NULL){ |
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return -1; |
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} |
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|
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while((dir_entry=readdir(proc_dir))!=NULL){ |
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if(atoi(dir_entry->d_name) == 0) continue; |
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|
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#ifdef SOLARIS |
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snprintf(filename, MAX_FILE_LENGTH, "/proc/%s/psinfo", dir_entry->d_name); |
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#endif |
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#ifdef LINUX |
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snprintf(filename, MAX_FILE_LENGTH, "/proc/%s/stat", dir_entry->d_name); |
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#endif |
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if((f=fopen(filename, "r"))==NULL){ |
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/* Open failed.. Process since vanished, or the path was too long. |
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* Ah well, move onwards to the next one */ |
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continue; |
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} |
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#ifdef SOLARIS |
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fread(&process_info, sizeof(psinfo_t), 1, f); |
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#endif |
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|
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proc_state = realloc(proc_state, (1+proc_state_size)*sizeof(proc_state_t)); |
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proc_state_ptr = proc_state+proc_state_size; |
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#ifdef SOLARIS |
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proc_state_ptr->pid = process_info.pr_pid; |
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proc_state_ptr->parent = process_info.pr_ppid; |
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proc_state_ptr->pgid = process_info.pr_pgid; |
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proc_state_ptr->uid = process_info.pr_uid; |
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proc_state_ptr->euid = process_info.pr_euid; |
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proc_state_ptr->gid = process_info.pr_gid; |
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proc_state_ptr->egid = process_info.pr_egid; |
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proc_state_ptr->proc_size = (process_info.pr_size) * 1024; |
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proc_state_ptr->proc_resident = (process_info.pr_rssize) * 1024; |
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proc_state_ptr->time_spent = process_info.pr_time.tv_sec; |
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proc_state_ptr->cpu_percent = (process_info.pr_pctcpu * 100.0) / 0x8000; |
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proc_state_ptr->process_name = strdup(process_info.pr_fname); |
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proc_state_ptr->proctitle = strdup(process_info.pr_psargs); |
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|
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if(process_info.pr_lwp.pr_state==1) proc_state_ptr->state = SLEEPING; |
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if(process_info.pr_lwp.pr_state==2) proc_state_ptr->state = RUNNING; |
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if(process_info.pr_lwp.pr_state==3) proc_state_ptr->state = ZOMBIE; |
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if(process_info.pr_lwp.pr_state==4) proc_state_ptr->state = STOPPED; |
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if(process_info.pr_lwp.pr_state==6) proc_state_ptr->state = RUNNING; |
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#endif |
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#ifdef LINUX |
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x = fscanf(f, "%d %4096s %c %d %d %*d %*d %*d %*u %*u %*u %*u %*u %lu %lu %*d %*d %*d %d %*d %*d %*u %llu %llu %*u %*u %*u %*u %*u %*u %*u %*u %*u %*u %*u %*u %*u %*d %*d\n", &(proc_state_ptr->pid), ps_name, &s, &(proc_state_ptr->parent), &(proc_state_ptr->pgid), &utime, &stime, &(proc_state_ptr->nice), &(proc_state_ptr->proc_size), &(proc_state_ptr->proc_resident)); |
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proc_state_ptr->proc_resident = proc_state_ptr->proc_resident * getpagesize(); |
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if(s == 'S') proc_state_ptr->state = SLEEPING; |
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if(s == 'R') proc_state_ptr->state = RUNNING; |
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if(s == 'Z') proc_state_ptr->state = ZOMBIE; |
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if(s == 'T') proc_state_ptr->state = STOPPED; |
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if(s == 'D') proc_state_ptr->state = STOPPED; |
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|
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/* pa_name[0] should = '(' */ |
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ptr = strchr(&ps_name[1], ')'); |
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if(ptr !=NULL) *ptr='\0'; |
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proc_state_ptr->process_name = strdup(&ps_name[1]); |
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|
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/* Need to do cpu */ |
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|
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|
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/* proctitle */ |
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snprintf(filename, MAX_FILE_LENGTH, "/proc/%s/cmdline", dir_entry->d_name); |
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|
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if((fn=open(filename, O_RDONLY)) == -1){ |
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/* Open failed.. Process since vanished, or the path was too long. |
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* Ah well, move onwards to the next one */ |
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continue; |
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} |
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#define PSARG_START_SIZE 128 |
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if(psargs == NULL){ |
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psargs = malloc(PSARG_START_SIZE); |
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psarg_size = PSARG_START_SIZE; |
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} |
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ptr = psargs; |
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t_read = 0; |
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toread = psarg_size; |
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while((size = read(fn, ptr, toread)) == toread){ |
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psargs = realloc(psargs, (psarg_size + PSARG_START_SIZE)); |
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ptr = psargs+psarg_size; |
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t_read = psarg_size; |
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psarg_size+=PSARG_START_SIZE; |
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toread = PSARG_START_SIZE; |
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} |
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if(size != -1) t_read+=size; |
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|
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ptr = psargs; |
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for(x=0; x<t_read; x++){ |
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if (*ptr == '\0') *ptr = ' '; |
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ptr++; |
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} |
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/* for safety sake */ |
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psargs[t_read] = '\0'; |
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|
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proc_state_ptr->proctitle = strdup(psargs); |
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|
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#endif |
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|
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proc_state_size++; |
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|
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fclose(f); |
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} |
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closedir(proc_dir); |
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#endif |
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|
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#ifdef ALLBSD |
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mib[0] = CTL_KERN; |
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mib[1] = KERN_PROC; |
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mib[2] = KERN_PROC_ALL; |
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|
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if(sysctl(mib, 3, NULL, &size, NULL, 0) < 0) { |
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return NULL; |
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} |
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|
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procs = size / sizeof(struct kinfo_proc); |
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|
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kp_stats = malloc(size); |
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if(kp_stats == NULL) { |
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return NULL; |
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} |
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|
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if(sysctl(mib, 3, kp_stats, &size, NULL, 0) < 0) { |
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free(kp_stats); |
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return NULL; |
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} |
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|
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#if (defined(FREEBSD) && !defined(FREEBSD5)) || defined(DFBSD) |
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kvmd = get_kvm2(); |
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#endif |
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|
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for (i = 0; i < procs; i++) { |
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/* replace with something more sensible */ |
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proc_state = realloc(proc_state, |
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(1+proc_state_size)*sizeof(proc_state_t)); |
248 |
if(proc_state == NULL ) { |
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return NULL; |
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} |
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proc_state_ptr = proc_state+proc_state_size; |
252 |
|
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#ifdef FREEBSD5 |
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proc_state_ptr->process_name = |
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strdup(kp_stats[i].ki_comm); |
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#elif defined(DFBSD) |
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proc_state_ptr->process_name = |
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strdup(kp_stats[i].kp_thread.td_comm); |
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#else |
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proc_state_ptr->process_name = |
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strdup(kp_stats[i].kp_proc.p_comm); |
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#endif |
263 |
|
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#if defined(FREEBSD5) || defined(NETBSD) || defined(OPENBSD) |
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size = sizeof(buflen); |
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|
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#ifdef FREEBSD5 |
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if(sysctlbyname("kern.ps_arg_cache_limit", &buflen, &size, NULL, 0) < 0) { |
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return NULL; |
270 |
} |
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#else |
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mib[1] = KERN_ARGMAX; |
273 |
|
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if(sysctl(mib, 2, &buflen, &size, NULL, 0) < 0) { |
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return NULL; |
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} |
277 |
#endif |
278 |
|
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proctitle = malloc(buflen); |
280 |
if(proctitle == NULL) { |
281 |
return NULL; |
282 |
} |
283 |
|
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size = buflen; |
285 |
|
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#ifdef FREEBSD5 |
287 |
mib[2] = KERN_PROC_ARGS; |
288 |
mib[3] = kp_stats[i].ki_pid; |
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#else |
290 |
mib[1] = KERN_PROC_ARGS; |
291 |
mib[2] = kp_stats[i].kp_proc.p_pid; |
292 |
mib[3] = KERN_PROC_ARGV; |
293 |
#endif |
294 |
|
295 |
if(sysctl(mib, 4, proctitle, &size, NULL, 0) < 0) { |
296 |
free(proctitle); |
297 |
proc_state_ptr->proctitle = NULL; |
298 |
} |
299 |
else if(size > 0) { |
300 |
proc_state_ptr->proctitle = malloc(size); |
301 |
if(proc_state_ptr->proctitle == NULL) { |
302 |
return NULL; |
303 |
} |
304 |
p = proctitle; |
305 |
proc_state_ptr->proctitle[0] = NULL; |
306 |
do { |
307 |
strncat(proc_state_ptr->proctitle, p, strlen(p)); |
308 |
strncat(proc_state_ptr->proctitle, " ", 1); |
309 |
p += strlen(p) + 1; |
310 |
} while (p < proctitle + size); |
311 |
free(proctitle); |
312 |
proc_state_ptr->proctitle[strlen(proc_state_ptr->proctitle)-1] = NULL; |
313 |
} |
314 |
else { |
315 |
free(proctitle); |
316 |
proc_state_ptr->proctitle = NULL; |
317 |
} |
318 |
#else |
319 |
if(kvmd != NULL) { |
320 |
args = kvm_getargv(kvmd, &(kp_stats[i]), 0); |
321 |
if(args != NULL) { |
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alloc = 1; |
323 |
proctitle = malloc(alloc); |
324 |
if(proctitle == NULL) { |
325 |
return NULL; |
326 |
} |
327 |
while(*args != NULL) { |
328 |
if(strlen(proctitle) + strlen(*args) >= alloc) { |
329 |
alloc = (alloc + strlen(*args)) << 1; |
330 |
proctitle = realloc(proctitle, alloc); |
331 |
if(proctitle == NULL) { |
332 |
return NULL; |
333 |
} |
334 |
} |
335 |
strncat(proctitle, *args, strlen(*args)); |
336 |
strncat(proctitle, " ", 1); |
337 |
args++; |
338 |
} |
339 |
/* remove trailing space */ |
340 |
proctitle[strlen(proctitle)-1] = NULL; |
341 |
proc_state_ptr->proctitle = proctitle; |
342 |
} |
343 |
else { |
344 |
proc_state_ptr->proctitle = NULL; |
345 |
} |
346 |
} |
347 |
else { |
348 |
proc_state_ptr->proctitle = NULL; |
349 |
} |
350 |
#endif |
351 |
|
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#ifdef FREEBSD5 |
353 |
proc_state_ptr->pid = kp_stats[i].ki_pid; |
354 |
proc_state_ptr->parent = kp_stats[i].ki_ppid; |
355 |
proc_state_ptr->pgid = kp_stats[i].ki_pgid; |
356 |
#else |
357 |
proc_state_ptr->pid = kp_stats[i].kp_proc.p_pid; |
358 |
proc_state_ptr->parent = kp_stats[i].kp_eproc.e_ppid; |
359 |
proc_state_ptr->pgid = kp_stats[i].kp_eproc.e_pgid; |
360 |
#endif |
361 |
|
362 |
#ifdef FREEBSD5 |
363 |
proc_state_ptr->uid = kp_stats[i].ki_ruid; |
364 |
proc_state_ptr->euid = kp_stats[i].ki_uid; |
365 |
proc_state_ptr->gid = kp_stats[i].ki_rgid; |
366 |
proc_state_ptr->egid = kp_stats[i].ki_svgid; |
367 |
#elif defined(DFBSD) |
368 |
proc_state_ptr->uid = kp_stats[i].kp_eproc.e_ucred.cr_ruid; |
369 |
proc_state_ptr->euid = kp_stats[i].kp_eproc.e_ucred.cr_svuid; |
370 |
proc_state_ptr->gid = kp_stats[i].kp_eproc.e_ucred.cr_rgid; |
371 |
proc_state_ptr->egid = kp_stats[i].kp_eproc.e_ucred.cr_svgid; |
372 |
#else |
373 |
proc_state_ptr->uid = kp_stats[i].kp_eproc.e_pcred.p_ruid; |
374 |
proc_state_ptr->euid = kp_stats[i].kp_eproc.e_pcred.p_svuid; |
375 |
proc_state_ptr->gid = kp_stats[i].kp_eproc.e_pcred.p_rgid; |
376 |
proc_state_ptr->egid = kp_stats[i].kp_eproc.e_pcred.p_svgid; |
377 |
#endif |
378 |
|
379 |
#ifdef FREEBSD5 |
380 |
proc_state_ptr->proc_size = kp_stats[i].ki_size; |
381 |
/* This is in pages */ |
382 |
proc_state_ptr->proc_resident = |
383 |
kp_stats[i].ki_rssize * getpagesize(); |
384 |
/* This is in microseconds */ |
385 |
proc_state_ptr->time_spent = kp_stats[i].ki_runtime / 1000000; |
386 |
proc_state_ptr->cpu_percent = |
387 |
((double)kp_stats[i].ki_pctcpu / FSCALE) * 100.0; |
388 |
proc_state_ptr->nice = kp_stats[i].ki_nice; |
389 |
#else |
390 |
proc_state_ptr->proc_size = |
391 |
kp_stats[i].kp_eproc.e_vm.vm_map.size; |
392 |
/* This is in pages */ |
393 |
proc_state_ptr->proc_resident = |
394 |
kp_stats[i].kp_eproc.e_vm.vm_rssize * getpagesize(); |
395 |
#if defined(NETBSD) || defined(OPENBSD) |
396 |
proc_state_ptr->time_spent = |
397 |
kp_stats[i].kp_proc.p_rtime.tv_sec; |
398 |
#elif defined(DFBSD) |
399 |
proc_state_ptr->time_spent = |
400 |
( kp_stats[i].kp_thread.td_uticks + |
401 |
kp_stats[i].kp_thread.td_sticks + |
402 |
kp_stats[i].kp_thread.td_iticks ) / 1000000; |
403 |
#else |
404 |
/* This is in microseconds */ |
405 |
proc_state_ptr->time_spent = |
406 |
kp_stats[i].kp_proc.p_runtime / 1000000; |
407 |
#endif |
408 |
proc_state_ptr->cpu_percent = |
409 |
((double)kp_stats[i].kp_proc.p_pctcpu / FSCALE) * 100.0; |
410 |
proc_state_ptr->nice = kp_stats[i].kp_proc.p_nice; |
411 |
#endif |
412 |
|
413 |
#ifdef FREEBSD5 |
414 |
switch (kp_stats[i].ki_stat) { |
415 |
#else |
416 |
switch (kp_stats[i].kp_proc.p_stat) { |
417 |
#endif |
418 |
case SIDL: |
419 |
case SRUN: |
420 |
#ifdef SONPROC |
421 |
case SONPROC: /* NetBSD */ |
422 |
#endif |
423 |
proc_state_ptr->state = RUNNING; |
424 |
break; |
425 |
case SSLEEP: |
426 |
#ifdef SWAIT |
427 |
case SWAIT: /* FreeBSD 5 */ |
428 |
#endif |
429 |
#ifdef SLOCK |
430 |
case SLOCK: /* FreeBSD 5 */ |
431 |
#endif |
432 |
proc_state_ptr->state = SLEEPING; |
433 |
break; |
434 |
case SSTOP: |
435 |
proc_state_ptr->state = STOPPED; |
436 |
break; |
437 |
case SZOMB: |
438 |
#ifdef SDEAD |
439 |
case SDEAD: /* OpenBSD & NetBSD */ |
440 |
#endif |
441 |
proc_state_ptr->state = ZOMBIE; |
442 |
break; |
443 |
default: |
444 |
proc_state_ptr->state = UNKNOWN; |
445 |
break; |
446 |
} |
447 |
proc_state_size++; |
448 |
} |
449 |
|
450 |
free(kp_stats); |
451 |
#endif |
452 |
|
453 |
*ps = proc_state; |
454 |
return proc_state_size; |
455 |
} |
456 |
|
457 |
process_stat_t *get_process_stats() { |
458 |
static process_stat_t process_stat; |
459 |
proc_state_t *ps; |
460 |
int ps_size, x; |
461 |
|
462 |
process_stat.sleeping = 0; |
463 |
process_stat.running = 0; |
464 |
process_stat.zombie = 0; |
465 |
process_stat.stopped = 0; |
466 |
process_stat.total = 0; |
467 |
|
468 |
ps_size = get_proc_snapshot(&ps); |
469 |
|
470 |
if(ps_size == 0) { |
471 |
return NULL; |
472 |
} |
473 |
|
474 |
for(x = 0; x < ps_size; x++) { |
475 |
switch (ps->state) { |
476 |
case RUNNING: |
477 |
process_stat.running++; |
478 |
break; |
479 |
case SLEEPING: |
480 |
process_stat.sleeping++; |
481 |
break; |
482 |
case STOPPED: |
483 |
process_stat.stopped++; |
484 |
break; |
485 |
case ZOMBIE: |
486 |
process_stat.zombie++; |
487 |
break; |
488 |
default: |
489 |
/* currently no mapping for UNKNOWN in process_stat_t */ |
490 |
break; |
491 |
} |
492 |
ps++; |
493 |
} |
494 |
|
495 |
process_stat.total = ps_size; |
496 |
|
497 |
return &process_stat; |
498 |
} |