| 1 |
/* |
| 2 |
* i-scream central monitoring system |
| 3 |
* http://www.i-scream.org |
| 4 |
* Copyright (C) 2000-2004 i-scream |
| 5 |
* |
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* This library is free software; you can redistribute it and/or |
| 7 |
* modify it under the terms of the GNU Lesser General Public |
| 8 |
* License as published by the Free Software Foundation; either |
| 9 |
* version 2.1 of the License, or (at your option) any later version. |
| 10 |
* |
| 11 |
* This library is distributed in the hope that it will be useful, |
| 12 |
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 14 |
* Lesser General Public License for more details. |
| 15 |
* |
| 16 |
* You should have received a copy of the GNU Lesser General Public |
| 17 |
* License along with this library; if not, write to the Free Software |
| 18 |
* 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 1.40 2004/04/04 21:44:00 ats Exp $ |
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*/ |
| 23 |
|
| 24 |
#ifdef HAVE_CONFIG_H |
| 25 |
#include "config.h" |
| 26 |
#endif |
| 27 |
|
| 28 |
#include "statgrab.h" |
| 29 |
#if defined(SOLARIS) || defined(LINUX) |
| 30 |
#include <stdio.h> |
| 31 |
#include <stdlib.h> |
| 32 |
#include <sys/types.h> |
| 33 |
#include <dirent.h> |
| 34 |
#include <string.h> |
| 35 |
#endif |
| 36 |
|
| 37 |
#ifdef SOLARIS |
| 38 |
#include <procfs.h> |
| 39 |
#include <limits.h> |
| 40 |
#define PROC_LOCATION "/proc" |
| 41 |
#define MAX_FILE_LENGTH PATH_MAX |
| 42 |
#endif |
| 43 |
#ifdef LINUX |
| 44 |
#include <limits.h> |
| 45 |
#include <unistd.h> |
| 46 |
#include <sys/stat.h> |
| 47 |
#include <fcntl.h> |
| 48 |
#define PROC_LOCATION "/proc" |
| 49 |
#define MAX_FILE_LENGTH PATH_MAX |
| 50 |
#endif |
| 51 |
#ifdef ALLBSD |
| 52 |
#include <stdlib.h> |
| 53 |
#include <sys/param.h> |
| 54 |
#include <sys/sysctl.h> |
| 55 |
#if defined(FREEBSD) || defined(DFBSD) |
| 56 |
#include <sys/user.h> |
| 57 |
#else |
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#include <sys/proc.h> |
| 59 |
#endif |
| 60 |
#include <string.h> |
| 61 |
#include <paths.h> |
| 62 |
#include <fcntl.h> |
| 63 |
#include <limits.h> |
| 64 |
#if (defined(FREEBSD) && !defined(FREEBSD5)) || defined(DFBSD) |
| 65 |
#include <kvm.h> |
| 66 |
#endif |
| 67 |
#include <unistd.h> |
| 68 |
#endif |
| 69 |
|
| 70 |
int get_proc_snapshot(proc_state_t **ps){ |
| 71 |
proc_state_t *proc_state = NULL; |
| 72 |
proc_state_t *proc_state_ptr; |
| 73 |
int proc_state_size = 0; |
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#ifdef ALLBSD |
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int mib[4]; |
| 76 |
size_t size; |
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struct kinfo_proc *kp_stats; |
| 78 |
int procs, i; |
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char *proctitle; |
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#if (defined(FREEBSD) && !defined(FREEBSD5)) || defined(DFBSD) |
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static kvm_t *kvmd; |
| 82 |
char **args; |
| 83 |
int alloc; |
| 84 |
#else |
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long buflen; |
| 86 |
char *p; |
| 87 |
#endif |
| 88 |
#endif |
| 89 |
#if defined(SOLARIS) || defined(LINUX) |
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DIR *proc_dir; |
| 91 |
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; |
| 96 |
#endif |
| 97 |
#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; |
| 103 |
static int psarg_size = 0; |
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unsigned long stime, utime; |
| 105 |
int x; |
| 106 |
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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|
| 112 |
if((proc_dir=opendir(PROC_LOCATION))==NULL){ |
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return -1; |
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} |
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|
| 116 |
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; |
| 164 |
if(s == 'D') proc_state_ptr->state = STOPPED; |
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|
| 166 |
/* pa_name[0] should = '(' */ |
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ptr = strchr(&ps_name[1], ')'); |
| 168 |
if(ptr !=NULL) *ptr='\0'; |
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proc_state_ptr->process_name = strdup(&ps_name[1]); |
| 170 |
|
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/* Need to do cpu */ |
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|
| 173 |
|
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/* proctitle */ |
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snprintf(filename, MAX_FILE_LENGTH, "/proc/%s/cmdline", dir_entry->d_name); |
| 176 |
|
| 177 |
if((fn=open(filename, O_RDONLY)) == -1){ |
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/* Open failed.. Process since vanished, or the path was too long. |
| 179 |
* Ah well, move onwards to the next one */ |
| 180 |
continue; |
| 181 |
} |
| 182 |
#define PSARG_START_SIZE 128 |
| 183 |
if(psargs == NULL){ |
| 184 |
psargs = malloc(PSARG_START_SIZE); |
| 185 |
psarg_size = PSARG_START_SIZE; |
| 186 |
} |
| 187 |
ptr = psargs; |
| 188 |
t_read = 0; |
| 189 |
toread = psarg_size; |
| 190 |
while((size = read(fn, ptr, toread)) == toread){ |
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psargs = realloc(psargs, (psarg_size + PSARG_START_SIZE)); |
| 192 |
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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} |
| 197 |
if(size != -1) t_read+=size; |
| 198 |
|
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ptr = psargs; |
| 200 |
for(x=0; x<t_read; x++){ |
| 201 |
if (*ptr == '\0') *ptr = ' '; |
| 202 |
ptr++; |
| 203 |
} |
| 204 |
/* for safety sake */ |
| 205 |
psargs[t_read] = '\0'; |
| 206 |
|
| 207 |
proc_state_ptr->proctitle = strdup(psargs); |
| 208 |
|
| 209 |
#endif |
| 210 |
|
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proc_state_size++; |
| 212 |
|
| 213 |
fclose(f); |
| 214 |
} |
| 215 |
closedir(proc_dir); |
| 216 |
#endif |
| 217 |
|
| 218 |
#ifdef ALLBSD |
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mib[0] = CTL_KERN; |
| 220 |
mib[1] = KERN_PROC; |
| 221 |
mib[2] = KERN_PROC_ALL; |
| 222 |
|
| 223 |
if(sysctl(mib, 3, NULL, &size, NULL, 0) < 0) { |
| 224 |
return NULL; |
| 225 |
} |
| 226 |
|
| 227 |
procs = size / sizeof(struct kinfo_proc); |
| 228 |
|
| 229 |
kp_stats = malloc(size); |
| 230 |
if(kp_stats == NULL) { |
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return NULL; |
| 232 |
} |
| 233 |
|
| 234 |
if(sysctl(mib, 3, kp_stats, &size, NULL, 0) < 0) { |
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free(kp_stats); |
| 236 |
return NULL; |
| 237 |
} |
| 238 |
|
| 239 |
#if (defined(FREEBSD) && !defined(FREEBSD5)) || defined(DFBSD) |
| 240 |
kvmd = kvm_openfiles(_PATH_DEVNULL, _PATH_DEVNULL, NULL, O_RDONLY, NULL); |
| 241 |
#endif |
| 242 |
|
| 243 |
for (i = 0; i < procs; i++) { |
| 244 |
/* replace with something more sensible */ |
| 245 |
proc_state = realloc(proc_state, |
| 246 |
(1+proc_state_size)*sizeof(proc_state_t)); |
| 247 |
if(proc_state == NULL ) { |
| 248 |
return NULL; |
| 249 |
} |
| 250 |
proc_state_ptr = proc_state+proc_state_size; |
| 251 |
|
| 252 |
#ifdef FREEBSD5 |
| 253 |
proc_state_ptr->process_name = |
| 254 |
strdup(kp_stats[i].ki_comm); |
| 255 |
#elif defined(DFBSD) |
| 256 |
proc_state_ptr->process_name = |
| 257 |
strdup(kp_stats[i].kp_thread.td_comm); |
| 258 |
#else |
| 259 |
proc_state_ptr->process_name = |
| 260 |
strdup(kp_stats[i].kp_proc.p_comm); |
| 261 |
#endif |
| 262 |
|
| 263 |
#if defined(FREEBSD5) || defined(NETBSD) || defined(OPENBSD) |
| 264 |
size = sizeof(buflen); |
| 265 |
|
| 266 |
#ifdef FREEBSD5 |
| 267 |
if(sysctlbyname("kern.ps_arg_cache_limit", &buflen, &size, NULL, 0) < 0) { |
| 268 |
return NULL; |
| 269 |
} |
| 270 |
#else |
| 271 |
mib[1] = KERN_ARGMAX; |
| 272 |
|
| 273 |
if(sysctl(mib, 2, &buflen, &size, NULL, 0) < 0) { |
| 274 |
return NULL; |
| 275 |
} |
| 276 |
#endif |
| 277 |
|
| 278 |
proctitle = malloc(buflen); |
| 279 |
if(proctitle == NULL) { |
| 280 |
return NULL; |
| 281 |
} |
| 282 |
|
| 283 |
size = buflen; |
| 284 |
|
| 285 |
#ifdef FREEBSD5 |
| 286 |
mib[2] = KERN_PROC_ARGS; |
| 287 |
mib[3] = kp_stats[i].ki_pid; |
| 288 |
#else |
| 289 |
mib[1] = KERN_PROC_ARGS; |
| 290 |
mib[2] = kp_stats[i].kp_proc.p_pid; |
| 291 |
mib[3] = KERN_PROC_ARGV; |
| 292 |
#endif |
| 293 |
|
| 294 |
if(sysctl(mib, 4, proctitle, &size, NULL, 0) < 0) { |
| 295 |
free(proctitle); |
| 296 |
proc_state_ptr->proctitle = NULL; |
| 297 |
} |
| 298 |
else if(size > 0) { |
| 299 |
proc_state_ptr->proctitle = malloc(size); |
| 300 |
if(proc_state_ptr->proctitle == NULL) { |
| 301 |
return NULL; |
| 302 |
} |
| 303 |
p = proctitle; |
| 304 |
proc_state_ptr->proctitle[0] = NULL; |
| 305 |
do { |
| 306 |
strncat(proc_state_ptr->proctitle, p, strlen(p)); |
| 307 |
strncat(proc_state_ptr->proctitle, " ", 1); |
| 308 |
p += strlen(p) + 1; |
| 309 |
} while (p < proctitle + size); |
| 310 |
free(proctitle); |
| 311 |
proc_state_ptr->proctitle[strlen(proc_state_ptr->proctitle)-1] = NULL; |
| 312 |
} |
| 313 |
else { |
| 314 |
free(proctitle); |
| 315 |
proc_state_ptr->proctitle = NULL; |
| 316 |
} |
| 317 |
#else |
| 318 |
if(kvmd != NULL) { |
| 319 |
args = kvm_getargv(kvmd, &(kp_stats[i]), 0); |
| 320 |
if(args != NULL) { |
| 321 |
alloc = 1; |
| 322 |
proctitle = malloc(alloc); |
| 323 |
if(proctitle == NULL) { |
| 324 |
return NULL; |
| 325 |
} |
| 326 |
while(*args != NULL) { |
| 327 |
if(strlen(proctitle) + strlen(*args) >= alloc) { |
| 328 |
alloc = (alloc + strlen(*args)) << 1; |
| 329 |
proctitle = realloc(proctitle, alloc); |
| 330 |
if(proctitle == NULL) { |
| 331 |
return NULL; |
| 332 |
} |
| 333 |
} |
| 334 |
strncat(proctitle, *args, strlen(*args)); |
| 335 |
strncat(proctitle, " ", 1); |
| 336 |
args++; |
| 337 |
} |
| 338 |
/* remove trailing space */ |
| 339 |
proctitle[strlen(proctitle)-1] = NULL; |
| 340 |
proc_state_ptr->proctitle = proctitle; |
| 341 |
} |
| 342 |
else { |
| 343 |
proc_state_ptr->proctitle = NULL; |
| 344 |
} |
| 345 |
} |
| 346 |
else { |
| 347 |
proc_state_ptr->proctitle = NULL; |
| 348 |
} |
| 349 |
#endif |
| 350 |
|
| 351 |
#ifdef FREEBSD5 |
| 352 |
proc_state_ptr->pid = kp_stats[i].ki_pid; |
| 353 |
proc_state_ptr->parent = kp_stats[i].ki_ppid; |
| 354 |
proc_state_ptr->pgid = kp_stats[i].ki_pgid; |
| 355 |
#else |
| 356 |
proc_state_ptr->pid = kp_stats[i].kp_proc.p_pid; |
| 357 |
proc_state_ptr->parent = kp_stats[i].kp_eproc.e_ppid; |
| 358 |
proc_state_ptr->pgid = kp_stats[i].kp_eproc.e_pgid; |
| 359 |
#endif |
| 360 |
|
| 361 |
#ifdef FREEBSD5 |
| 362 |
proc_state_ptr->uid = kp_stats[i].ki_ruid; |
| 363 |
proc_state_ptr->euid = kp_stats[i].ki_uid; |
| 364 |
proc_state_ptr->gid = kp_stats[i].ki_rgid; |
| 365 |
proc_state_ptr->egid = kp_stats[i].ki_svgid; |
| 366 |
#elif defined(DFBSD) |
| 367 |
proc_state_ptr->uid = kp_stats[i].kp_eproc.e_ucred.cr_ruid; |
| 368 |
proc_state_ptr->euid = kp_stats[i].kp_eproc.e_ucred.cr_svuid; |
| 369 |
proc_state_ptr->gid = kp_stats[i].kp_eproc.e_ucred.cr_rgid; |
| 370 |
proc_state_ptr->egid = kp_stats[i].kp_eproc.e_ucred.cr_svgid; |
| 371 |
#else |
| 372 |
proc_state_ptr->uid = kp_stats[i].kp_eproc.e_pcred.p_ruid; |
| 373 |
proc_state_ptr->euid = kp_stats[i].kp_eproc.e_pcred.p_svuid; |
| 374 |
proc_state_ptr->gid = kp_stats[i].kp_eproc.e_pcred.p_rgid; |
| 375 |
proc_state_ptr->egid = kp_stats[i].kp_eproc.e_pcred.p_svgid; |
| 376 |
#endif |
| 377 |
|
| 378 |
#ifdef FREEBSD5 |
| 379 |
proc_state_ptr->proc_size = kp_stats[i].ki_size; |
| 380 |
/* This is in pages */ |
| 381 |
proc_state_ptr->proc_resident = |
| 382 |
kp_stats[i].ki_rssize * getpagesize(); |
| 383 |
/* This is in microseconds */ |
| 384 |
proc_state_ptr->time_spent = kp_stats[i].ki_runtime / 1000000; |
| 385 |
proc_state_ptr->cpu_percent = |
| 386 |
((double)kp_stats[i].ki_pctcpu / FSCALE) * 100.0; |
| 387 |
proc_state_ptr->nice = kp_stats[i].ki_nice; |
| 388 |
#else |
| 389 |
proc_state_ptr->proc_size = |
| 390 |
kp_stats[i].kp_eproc.e_vm.vm_map.size; |
| 391 |
/* This is in pages */ |
| 392 |
proc_state_ptr->proc_resident = |
| 393 |
kp_stats[i].kp_eproc.e_vm.vm_rssize * getpagesize(); |
| 394 |
#if defined(NETBSD) || defined(OPENBSD) |
| 395 |
proc_state_ptr->time_spent = |
| 396 |
kp_stats[i].kp_proc.p_rtime.tv_sec; |
| 397 |
#elif defined(DFBSD) |
| 398 |
proc_state_ptr->time_spent = |
| 399 |
( kp_stats[i].kp_thread.td_uticks + |
| 400 |
kp_stats[i].kp_thread.td_sticks + |
| 401 |
kp_stats[i].kp_thread.td_iticks ) / 1000000; |
| 402 |
#else |
| 403 |
/* This is in microseconds */ |
| 404 |
proc_state_ptr->time_spent = |
| 405 |
kp_stats[i].kp_proc.p_runtime / 1000000; |
| 406 |
#endif |
| 407 |
proc_state_ptr->cpu_percent = |
| 408 |
((double)kp_stats[i].kp_proc.p_pctcpu / FSCALE) * 100.0; |
| 409 |
proc_state_ptr->nice = kp_stats[i].kp_proc.p_nice; |
| 410 |
#endif |
| 411 |
|
| 412 |
#ifdef FREEBSD5 |
| 413 |
switch (kp_stats[i].ki_stat) { |
| 414 |
#else |
| 415 |
switch (kp_stats[i].kp_proc.p_stat) { |
| 416 |
#endif |
| 417 |
case SIDL: |
| 418 |
case SRUN: |
| 419 |
#ifdef SONPROC |
| 420 |
case SONPROC: /* NetBSD */ |
| 421 |
#endif |
| 422 |
proc_state_ptr->state = RUNNING; |
| 423 |
break; |
| 424 |
case SSLEEP: |
| 425 |
#ifdef SWAIT |
| 426 |
case SWAIT: /* FreeBSD 5 */ |
| 427 |
#endif |
| 428 |
#ifdef SLOCK |
| 429 |
case SLOCK: /* FreeBSD 5 */ |
| 430 |
#endif |
| 431 |
proc_state_ptr->state = SLEEPING; |
| 432 |
break; |
| 433 |
case SSTOP: |
| 434 |
proc_state_ptr->state = STOPPED; |
| 435 |
break; |
| 436 |
case SZOMB: |
| 437 |
#ifdef SDEAD |
| 438 |
case SDEAD: /* OpenBSD & NetBSD */ |
| 439 |
#endif |
| 440 |
proc_state_ptr->state = ZOMBIE; |
| 441 |
break; |
| 442 |
default: |
| 443 |
proc_state_ptr->state = UNKNOWN; |
| 444 |
break; |
| 445 |
} |
| 446 |
proc_state_size++; |
| 447 |
} |
| 448 |
|
| 449 |
free(kp_stats); |
| 450 |
#endif |
| 451 |
|
| 452 |
*ps = proc_state; |
| 453 |
return proc_state_size; |
| 454 |
} |
| 455 |
|
| 456 |
process_stat_t *get_process_stats() { |
| 457 |
static process_stat_t process_stat; |
| 458 |
proc_state_t *ps; |
| 459 |
int ps_size, x; |
| 460 |
|
| 461 |
process_stat.sleeping = 0; |
| 462 |
process_stat.running = 0; |
| 463 |
process_stat.zombie = 0; |
| 464 |
process_stat.stopped = 0; |
| 465 |
process_stat.total = 0; |
| 466 |
|
| 467 |
ps_size = get_proc_snapshot(&ps); |
| 468 |
|
| 469 |
if(ps_size == 0) { |
| 470 |
return NULL; |
| 471 |
} |
| 472 |
|
| 473 |
for(x = 0; x < ps_size; x++) { |
| 474 |
switch (ps->state) { |
| 475 |
case RUNNING: |
| 476 |
process_stat.running++; |
| 477 |
break; |
| 478 |
case SLEEPING: |
| 479 |
process_stat.sleeping++; |
| 480 |
break; |
| 481 |
case STOPPED: |
| 482 |
process_stat.stopped++; |
| 483 |
break; |
| 484 |
case ZOMBIE: |
| 485 |
process_stat.zombie++; |
| 486 |
break; |
| 487 |
default: |
| 488 |
/* currently no mapping for UNKNOWN in process_stat_t */ |
| 489 |
break; |
| 490 |
} |
| 491 |
ps++; |
| 492 |
} |
| 493 |
|
| 494 |
process_stat.total = ps_size; |
| 495 |
|
| 496 |
return &process_stat; |
| 497 |
} |
