src/processes.c

   1 /**
   2  * collectd - src/processes.c
   3  * Copyright (C) 2005       Lyonel Vincent
   4  * Copyright (C) 2006-2010  Florian octo Forster
   5  * Copyright (C) 2008       Oleg King
   6  * Copyright (C) 2009       Sebastian Harl
   7  * Copyright (C) 2009       Andrés J. Díaz
   8  * Copyright (C) 2009       Manuel Sanmartin
   9  * Copyright (C) 2010       Clément Stenac
  10  * Copyright (C) 2012       Cosmin Ioiart
  11  *
  12  * This program is free software; you can redistribute it and/or modify it
  13  * under the terms of the GNU General Public License as published by the
  14  * Free Software Foundation; either version 2 of the License, or (at your
  15  * option) any later version.
  16  *
  17  * This program is distributed in the hope that it will be useful, but
  18  * WITHOUT ANY WARRANTY; without even the implied warranty of
  19  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  20  * General Public License for more details.
  21  *
  22  * You should have received a copy of the GNU General Public License along
  23  * with this program; if not, write to the Free Software Foundation, Inc.,
  24  * 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
  25  *
  26  * Authors:
  27  *   Lyonel Vincent <lyonel at ezix.org>
  28  *   Florian octo Forster <octo at collectd.org>
  29  *   Oleg King <king2 at kaluga.ru>
  30  *   Sebastian Harl <sh at tokkee.org>
  31  *   Andrés J. Díaz <ajdiaz at connectical.com>
  32  *   Manuel Sanmartin
  33  *   Clément Stenac <clement.stenac at diwi.org>
  34  *   Cosmin Ioiart <cioiart at gmail.com>
  35  **/
  36
  37 #include "collectd.h"
  38 #include "common.h"
  39 #include "plugin.h"
  40 #include "configfile.h"
  41
  42 /* Include header files for the mach system, if they exist.. */
  43 #if HAVE_THREAD_INFO
  44 #  if HAVE_MACH_MACH_INIT_H
  45 #    include <mach/mach_init.h>
  46 #  endif
  47 #  if HAVE_MACH_HOST_PRIV_H
  48 #    include <mach/host_priv.h>
  49 #  endif
  50 #  if HAVE_MACH_MACH_ERROR_H
  51 #    include <mach/mach_error.h>
  52 #  endif
  53 #  if HAVE_MACH_MACH_HOST_H
  54 #    include <mach/mach_host.h>
  55 #  endif
  56 #  if HAVE_MACH_MACH_PORT_H
  57 #    include <mach/mach_port.h>
  58 #  endif
  59 #  if HAVE_MACH_MACH_TYPES_H
  60 #    include <mach/mach_types.h>
  61 #  endif
  62 #  if HAVE_MACH_MESSAGE_H
  63 #    include <mach/message.h>
  64 #  endif
  65 #  if HAVE_MACH_PROCESSOR_SET_H
  66 #    include <mach/processor_set.h>
  67 #  endif
  68 #  if HAVE_MACH_TASK_H
  69 #    include <mach/task.h>
  70 #  endif
  71 #  if HAVE_MACH_THREAD_ACT_H
  72 #    include <mach/thread_act.h>
  73 #  endif
  74 #  if HAVE_MACH_VM_REGION_H
  75 #    include <mach/vm_region.h>
  76 #  endif
  77 #  if HAVE_MACH_VM_MAP_H
  78 #    include <mach/vm_map.h>
  79 #  endif
  80 #  if HAVE_MACH_VM_PROT_H
  81 #    include <mach/vm_prot.h>
  82 #  endif
  83 #  if HAVE_SYS_SYSCTL_H
  84 #    include <sys/sysctl.h>
  85 #  endif
  86 /* #endif HAVE_THREAD_INFO */
  87
  88 #elif KERNEL_LINUX
  89 #  if HAVE_LINUX_CONFIG_H
  90 #    include <linux/config.h>
  91 #  endif
  92 #  ifndef CONFIG_HZ
  93 #    define CONFIG_HZ 100
  94 #  endif
  95 /* #endif KERNEL_LINUX */
  96
  97 #elif HAVE_LIBKVM_GETPROCS && (HAVE_STRUCT_KINFO_PROC_FREEBSD || HAVE_STRUCT_KINFO_PROC_OPENBSD)
  98 #  include <kvm.h>
  99 #  include <sys/param.h>
 100 #  include <sys/sysctl.h>
 101 #  include <sys/user.h>
 102 #  include <sys/proc.h>
 103 /* #endif HAVE_LIBKVM_GETPROCS && (HAVE_STRUCT_KINFO_PROC_FREEBSD || HAVE_STRUCT_KINFO_PROC_OPENBSD) */
 104
 105 #elif HAVE_PROCINFO_H
 106 #  include <procinfo.h>
 107 #  include <sys/types.h>
 108
 109 #define MAXPROCENTRY 32
 110 #define MAXTHRDENTRY 16
 111 #define MAXARGLN 1024
 112 /* #endif HAVE_PROCINFO_H */
 113
 114 #elif KERNEL_SOLARIS
 115 /* Hack: Avoid #error when building a 32-bit binary with
 116  * _FILE_OFFSET_BITS=64. There is a reason for this #error, as one
 117  * of the structures in <sys/procfs.h> uses an off_t, but that
 118  * isn't relevant to our usage of procfs. */
 119 #if !defined(_LP64) && _FILE_OFFSET_BITS == 64
 120 #  define SAVE_FOB_64
 121 #  undef _FILE_OFFSET_BITS
 122 #endif
 123
 124 # include <procfs.h>
 125
 126 #ifdef SAVE_FOB_64
 127 #  define _FILE_OFFSET_BITS 64
 128 #  undef SAVE_FOB_64
 129 #endif
 130
 131 # include <sys/user.h>
 132 # include <dirent.h>
 133 /* #endif KERNEL_SOLARIS */
 134
 135 #else
 136 # error "No applicable input method."
 137 #endif
 138
 139 #if HAVE_REGEX_H
 140 # include <regex.h>
 141 #endif
 142
 143 #if HAVE_KSTAT_H
 144 # include <kstat.h>
 145 #endif
 146
 147 #ifndef CMDLINE_BUFFER_SIZE
 148 # if defined(ARG_MAX) && (ARG_MAX < 4096)
 149 #  define CMDLINE_BUFFER_SIZE ARG_MAX
 150 # else
 151 #  define CMDLINE_BUFFER_SIZE 4096
 152 # endif
 153 #endif
 154
 155 typedef struct procstat_entry_s
 156 {
 157         unsigned long id;
 158         unsigned long age;
 159
 160         unsigned long num_proc;
 161         unsigned long num_lwp;
 162         unsigned long vmem_size;
 163         unsigned long vmem_rss;
 164         unsigned long vmem_data;
 165         unsigned long vmem_code;
 166         unsigned long stack_size;
 167
 168         unsigned long vmem_minflt;
 169         unsigned long vmem_majflt;
 170         derive_t      vmem_minflt_counter;
 171         derive_t      vmem_majflt_counter;
 172
 173         unsigned long cpu_user;
 174         unsigned long cpu_system;
 175         derive_t      cpu_user_counter;
 176         derive_t      cpu_system_counter;
 177
 178         /* io data */
 179         derive_t io_rchar;
 180         derive_t io_wchar;
 181         derive_t io_syscr;
 182         derive_t io_syscw;
 183
 184         derive_t cswitch_vol;
 185         derive_t cswitch_invol;
 186
 187         struct procstat_entry_s *next;
 188 } procstat_entry_t;
 189
 190 #define PROCSTAT_NAME_LEN 256
 191 typedef struct procstat
 192 {
 193         char          name[PROCSTAT_NAME_LEN];
 194 #if HAVE_REGEX_H
 195         regex_t *re;
 196 #endif
 197
 198         unsigned long num_proc;
 199         unsigned long num_lwp;
 200         unsigned long vmem_size;
 201         unsigned long vmem_rss;
 202         unsigned long vmem_data;
 203         unsigned long vmem_code;
 204         unsigned long stack_size;
 205
 206         derive_t vmem_minflt_counter;
 207         derive_t vmem_majflt_counter;
 208
 209         derive_t cpu_user_counter;
 210         derive_t cpu_system_counter;
 211
 212         /* io data */
 213         derive_t io_rchar;
 214         derive_t io_wchar;
 215         derive_t io_syscr;
 216         derive_t io_syscw;
 217
 218         derive_t cswitch_vol;
 219         derive_t cswitch_invol;
 220
 221         struct procstat   *next;
 222         struct procstat_entry_s *instances;
 223 } procstat_t;
 224
 225 static procstat_t *list_head_g = NULL;
 226
 227 static _Bool report_ctx_switch = 0;
 228
 229 #if HAVE_THREAD_INFO
 230 static mach_port_t port_host_self;
 231 static mach_port_t port_task_self;
 232
 233 static processor_set_name_array_t pset_list;
 234 static mach_msg_type_number_t     pset_list_len;
 235 /* #endif HAVE_THREAD_INFO */
 236
 237 #elif KERNEL_LINUX
 238 static long pagesize_g;
 239 /* #endif KERNEL_LINUX */
 240
 241 #elif HAVE_LIBKVM_GETPROCS && (HAVE_STRUCT_KINFO_PROC_FREEBSD || HAVE_STRUCT_KINFO_PROC_OPENBSD)
 242 static int pagesize;
 243 /* #endif HAVE_LIBKVM_GETPROCS && (HAVE_STRUCT_KINFO_PROC_FREEBSD || HAVE_STRUCT_KINFO_PROC_OPENBSD) */
 244
 245 #elif HAVE_PROCINFO_H
 246 static  struct procentry64 procentry[MAXPROCENTRY];
 247 static  struct thrdentry64 thrdentry[MAXTHRDENTRY];
 248 static int pagesize;
 249
 250 #ifndef _AIXVERSION_610
 251 int     getprocs64 (void *procsinfo, int sizproc, void *fdsinfo, int sizfd, pid_t *index, int count);
 252 int     getthrds64( pid_t, void *, int, tid64_t *, int );
 253 #endif
 254 int getargs (void *processBuffer, int bufferLen, char *argsBuffer, int argsLen);
 255 #endif /* HAVE_PROCINFO_H */
 256
 257 /* put name of process from config to list_head_g tree
 258  * list_head_g is a list of 'procstat_t' structs with
 259  * processes names we want to watch */
 260 static void ps_list_register (const char *name, const char *regexp)
 261 {
 262         procstat_t *new;
 263         procstat_t *ptr;
 264         int status;
 265
 266         new = calloc (1, sizeof (*new));
 267         if (new == NULL)
 268         {
 269                 ERROR ("processes plugin: ps_list_register: calloc failed.");
 270                 return;
 271         }
 272         sstrncpy (new->name, name, sizeof (new->name));
 273
 274 #if HAVE_REGEX_H
 275         if (regexp != NULL)
 276         {
 277                 DEBUG ("ProcessMatch: adding \"%s\" as criteria to process %s.", regexp, name);
 278                 new->re = malloc (sizeof (*new->re));
 279                 if (new->re == NULL)
 280                 {
 281                         ERROR ("processes plugin: ps_list_register: malloc failed.");
 282                         sfree (new);
 283                         return;
 284                 }
 285
 286                 status = regcomp (new->re, regexp, REG_EXTENDED | REG_NOSUB);
 287                 if (status != 0)
 288                 {
 289                         DEBUG ("ProcessMatch: compiling the regular expression \"%s\" failed.", regexp);
 290                         sfree (new->re);
 291                         sfree (new);
 292                         return;
 293                 }
 294         }
 295 #else
 296         if (regexp != NULL)
 297         {
 298                 ERROR ("processes plugin: ps_list_register: "
 299                                 "Regular expression \"%s\" found in config "
 300                                 "file, but support for regular expressions "
 301                                 "has been disabled at compile time.",
 302                                 regexp);
 303                 sfree (new);
 304                 return;
 305         }
 306 #endif
 307
 308         for (ptr = list_head_g; ptr != NULL; ptr = ptr->next)
 309         {
 310                 if (strcmp (ptr->name, name) == 0)
 311                 {
 312                         WARNING ("processes plugin: You have configured more "
 313                                         "than one `Process' or "
 314                                         "`ProcessMatch' with the same name. "
 315                                         "All but the first setting will be "
 316                                         "ignored.");
 317 #if HAVE_REGEX_H
 318                         sfree (new->re);
 319 #endif
 320                         sfree (new);
 321                         return;
 322                 }
 323
 324                 if (ptr->next == NULL)
 325                         break;
 326         }
 327
 328         if (ptr == NULL)
 329                 list_head_g = new;
 330         else
 331                 ptr->next = new;
 332 } /* void ps_list_register */
 333
 334 /* try to match name against entry, returns 1 if success */
 335 static int ps_list_match (const char *name, const char *cmdline, procstat_t *ps)
 336 {
 337 #if HAVE_REGEX_H
 338         if (ps->re != NULL)
 339         {
 340                 int status;
 341                 const char *str;
 342
 343                 str = cmdline;
 344                 if ((str == NULL) || (str[0] == 0))
 345                         str = name;
 346
 347                 assert (str != NULL);
 348
 349                 status = regexec (ps->re, str,
 350                                 /* nmatch = */ 0,
 351                                 /* pmatch = */ NULL,
 352                                 /* eflags = */ 0);
 353                 if (status == 0)
 354                         return (1);
 355         }
 356         else
 357 #endif
 358         if (strcmp (ps->name, name) == 0)
 359                 return (1);
 360
 361         return (0);
 362 } /* int ps_list_match */
 363
 364 static void ps_update_counter (
 365         _Bool init,
 366         derive_t *group_counter,
 367         derive_t *curr_counter, unsigned long *curr_value,
 368         derive_t new_counter, unsigned long new_value) {
 369     if (init)
 370     {
 371         *curr_value = new_value;
 372         *curr_counter += new_value;
 373         *group_counter += new_value;
 374         return;
 375     }
 376
 377     if (new_counter < *curr_counter)
 378     {
 379         *curr_value = new_counter + (ULONG_MAX - *curr_counter);
 380     }
 381     else
 382     {
 383         *curr_value = new_counter - *curr_counter;
 384     }
 385     *curr_counter = new_counter;
 386     *group_counter += *curr_value;
 387 }
 388
 389 /* add process entry to 'instances' of process 'name' (or refresh it) */
 390 static void ps_list_add (const char *name, const char *cmdline, procstat_entry_t *entry)
 391 {
 392         procstat_t *ps;
 393         procstat_entry_t *pse;
 394
 395         if (entry->id == 0)
 396                 return;
 397
 398         for (ps = list_head_g; ps != NULL; ps = ps->next)
 399         {
 400         _Bool want_init;
 401
 402                 if ((ps_list_match (name, cmdline, ps)) == 0)
 403                         continue;
 404
 405                 for (pse = ps->instances; pse != NULL; pse = pse->next)
 406                         if ((pse->id == entry->id) || (pse->next == NULL))
 407                                 break;
 408
 409                 if ((pse == NULL) || (pse->id != entry->id))
 410                 {
 411                         procstat_entry_t *new;
 412
 413                         new = calloc (1, sizeof (*new));
 414                         if (new == NULL)
 415                                 return;
 416                         new->id = entry->id;
 417
 418                         if (pse == NULL)
 419                                 ps->instances = new;
 420                         else
 421                                 pse->next = new;
 422
 423                         pse = new;
 424                 }
 425
 426                 pse->age = 0;
 427                 pse->num_proc   = entry->num_proc;
 428                 pse->num_lwp    = entry->num_lwp;
 429                 pse->vmem_size  = entry->vmem_size;
 430                 pse->vmem_rss   = entry->vmem_rss;
 431                 pse->vmem_data  = entry->vmem_data;
 432                 pse->vmem_code  = entry->vmem_code;
 433                 pse->stack_size = entry->stack_size;
 434                 pse->io_rchar   = entry->io_rchar;
 435                 pse->io_wchar   = entry->io_wchar;
 436                 pse->io_syscr   = entry->io_syscr;
 437                 pse->io_syscw   = entry->io_syscw;
 438                 pse->cswitch_vol   = entry->cswitch_vol;
 439                 pse->cswitch_invol = entry->cswitch_invol;
 440
 441                 ps->num_proc   += pse->num_proc;
 442                 ps->num_lwp    += pse->num_lwp;
 443                 ps->vmem_size  += pse->vmem_size;
 444                 ps->vmem_rss   += pse->vmem_rss;
 445                 ps->vmem_data  += pse->vmem_data;
 446                 ps->vmem_code  += pse->vmem_code;
 447                 ps->stack_size += pse->stack_size;
 448
 449                 ps->io_rchar   += ((pse->io_rchar == -1)?0:pse->io_rchar);
 450                 ps->io_wchar   += ((pse->io_wchar == -1)?0:pse->io_wchar);
 451                 ps->io_syscr   += ((pse->io_syscr == -1)?0:pse->io_syscr);
 452                 ps->io_syscw   += ((pse->io_syscw == -1)?0:pse->io_syscw);
 453
 454                 ps->cswitch_vol   += ((pse->cswitch_vol == -1)?0:pse->cswitch_vol);
 455                 ps->cswitch_invol += ((pse->cswitch_invol == -1)?0:pse->cswitch_invol);
 456
 457                 want_init = (entry->vmem_minflt_counter == 0)
 458                                 && (entry->vmem_majflt_counter == 0);
 459                 ps_update_counter (want_init,
 460                                 &ps->vmem_minflt_counter,
 461                                 &pse->vmem_minflt_counter, &pse->vmem_minflt,
 462                                 entry->vmem_minflt_counter, entry->vmem_minflt);
 463                 ps_update_counter (want_init,
 464                                 &ps->vmem_majflt_counter,
 465                                 &pse->vmem_majflt_counter, &pse->vmem_majflt,
 466                                 entry->vmem_majflt_counter, entry->vmem_majflt);
 467
 468                 want_init = (entry->cpu_user_counter == 0)
 469                                 && (entry->cpu_system_counter == 0);
 470                 ps_update_counter (want_init,
 471                                 &ps->cpu_user_counter,
 472                                 &pse->cpu_user_counter, &pse->cpu_user,
 473                                 entry->cpu_user_counter, entry->cpu_user);
 474                 ps_update_counter (want_init,
 475                                 &ps->cpu_system_counter,
 476                                 &pse->cpu_system_counter, &pse->cpu_system,
 477                                 entry->cpu_system_counter, entry->cpu_system);
 478         }
 479 }
 480
 481 /* remove old entries from instances of processes in list_head_g */
 482 static void ps_list_reset (void)
 483 {
 484         procstat_t *ps;
 485         procstat_entry_t *pse;
 486         procstat_entry_t *pse_prev;
 487
 488         for (ps = list_head_g; ps != NULL; ps = ps->next)
 489         {
 490                 ps->num_proc    = 0;
 491                 ps->num_lwp     = 0;
 492                 ps->vmem_size   = 0;
 493                 ps->vmem_rss    = 0;
 494                 ps->vmem_data   = 0;
 495                 ps->vmem_code   = 0;
 496                 ps->stack_size  = 0;
 497                 ps->io_rchar = -1;
 498                 ps->io_wchar = -1;
 499                 ps->io_syscr = -1;
 500                 ps->io_syscw = -1;
 501                 ps->cswitch_vol   = -1;
 502                 ps->cswitch_invol = -1;
 503
 504                 pse_prev = NULL;
 505                 pse = ps->instances;
 506                 while (pse != NULL)
 507                 {
 508                         if (pse->age > 10)
 509                         {
 510                                 DEBUG ("Removing this procstat entry cause it's too old: "
 511                                                 "id = %lu; name = %s;",
 512                                                 pse->id, ps->name);
 513
 514                                 if (pse_prev == NULL)
 515                                 {
 516                                         ps->instances = pse->next;
 517                                         free (pse);
 518                                         pse = ps->instances;
 519                                 }
 520                                 else
 521                                 {
 522                                         pse_prev->next = pse->next;
 523                                         free (pse);
 524                                         pse = pse_prev->next;
 525                                 }
 526                         }
 527                         else
 528                         {
 529                                 pse->age++;
 530                                 pse_prev = pse;
 531                                 pse = pse->next;
 532                         }
 533                 } /* while (pse != NULL) */
 534         } /* for (ps = list_head_g; ps != NULL; ps = ps->next) */
 535 }
 536
 537 /* put all pre-defined 'Process' names from config to list_head_g tree */
 538 static int ps_config (oconfig_item_t *ci)
 539 {
 540         int i;
 541
 542 #if KERNEL_LINUX
 543         const size_t max_procname_len = 15;
 544 #elif KERNEL_SOLARIS || KERNEL_FREEBSD
 545         const size_t max_procname_len = MAXCOMLEN -1;
 546 #endif
 547
 548         for (i = 0; i < ci->children_num; ++i) {
 549                 oconfig_item_t *c = ci->children + i;
 550
 551                 if (strcasecmp (c->key, "Process") == 0)
 552                 {
 553                         if ((c->values_num != 1)
 554                                         || (OCONFIG_TYPE_STRING != c->values[0].type)) {
 555                                 ERROR ("processes plugin: `Process' expects exactly "
 556                                                 "one string argument (got %i).",
 557                                                 c->values_num);
 558                                 continue;
 559                         }
 560
 561                         if (c->children_num != 0) {
 562                                 WARNING ("processes plugin: the `Process' config option "
 563                                                 "does not expect any child elements -- ignoring "
 564                                                 "content (%i elements) of the <Process '%s'> block.",
 565                                                 c->children_num, c->values[0].value.string);
 566                         }
 567
 568 #if KERNEL_LINUX || KERNEL_SOLARIS || KERNEL_FREEBSD
 569                         if (strlen (c->values[0].value.string) > max_procname_len) {
 570                                 WARNING ("processes plugin: this platform has a %zu character limit "
 571                                                 "to process names. The `Process \"%s\"' option will "
 572                                                 "not work as expected.",
 573                                                 max_procname_len, c->values[0].value.string);
 574                         }
 575 #endif
 576
 577                         ps_list_register (c->values[0].value.string, NULL);
 578                 }
 579                 else if (strcasecmp (c->key, "ProcessMatch") == 0)
 580                 {
 581                         if ((c->values_num != 2)
 582                                         || (OCONFIG_TYPE_STRING != c->values[0].type)
 583                                         || (OCONFIG_TYPE_STRING != c->values[1].type))
 584                         {
 585                                 ERROR ("processes plugin: `ProcessMatch' needs exactly "
 586                                                 "two string arguments (got %i).",
 587                                                 c->values_num);
 588                                 continue;
 589                         }
 590
 591                         if (c->children_num != 0) {
 592                                 WARNING ("processes plugin: the `ProcessMatch' config option "
 593                                                 "does not expect any child elements -- ignoring "
 594                                                 "content (%i elements) of the <ProcessMatch '%s' '%s'> "
 595                                                 "block.", c->children_num, c->values[0].value.string,
 596                                                 c->values[1].value.string);
 597                         }
 598
 599                         ps_list_register (c->values[0].value.string,
 600                                         c->values[1].value.string);
 601                 }
 602                 else if (strcasecmp (c->key, "CollectContextSwitch") == 0)
 603                 {
 604                         cf_util_get_boolean (c, &report_ctx_switch);
 605                 }
 606                 else
 607                 {
 608                         ERROR ("processes plugin: The `%s' configuration option is not "
 609                                         "understood and will be ignored.", c->key);
 610                         continue;
 611                 }
 612         }
 613
 614         return (0);
 615 }
 616
 617 static int ps_init (void)
 618 {
 619 #if HAVE_THREAD_INFO
 620         kern_return_t status;
 621
 622         port_host_self = mach_host_self ();
 623         port_task_self = mach_task_self ();
 624
 625         if (pset_list != NULL)
 626         {
 627                 vm_deallocate (port_task_self,
 628                                 (vm_address_t) pset_list,
 629                                 pset_list_len * sizeof (processor_set_t));
 630                 pset_list = NULL;
 631                 pset_list_len = 0;
 632         }
 633
 634         if ((status = host_processor_sets (port_host_self,
 635                                         &pset_list,
 636                                         &pset_list_len)) != KERN_SUCCESS)
 637         {
 638                 ERROR ("host_processor_sets failed: %s\n",
 639                                 mach_error_string (status));
 640                 pset_list = NULL;
 641                 pset_list_len = 0;
 642                 return (-1);
 643         }
 644 /* #endif HAVE_THREAD_INFO */
 645
 646 #elif KERNEL_LINUX
 647         pagesize_g = sysconf(_SC_PAGESIZE);
 648         DEBUG ("pagesize_g = %li; CONFIG_HZ = %i;",
 649                         pagesize_g, CONFIG_HZ);
 650 /* #endif KERNEL_LINUX */
 651
 652 #elif HAVE_LIBKVM_GETPROCS && (HAVE_STRUCT_KINFO_PROC_FREEBSD || HAVE_STRUCT_KINFO_PROC_OPENBSD)
 653         pagesize = getpagesize();
 654 /* #endif HAVE_LIBKVM_GETPROCS && (HAVE_STRUCT_KINFO_PROC_FREEBSD || HAVE_STRUCT_KINFO_PROC_OPENBSD) */
 655
 656 #elif HAVE_PROCINFO_H
 657         pagesize = getpagesize();
 658 #endif /* HAVE_PROCINFO_H */
 659
 660         return (0);
 661 } /* int ps_init */
 662
 663 /* submit global state (e.g.: qty of zombies, running, etc..) */
 664 static void ps_submit_state (const char *state, double value)
 665 {
 666         value_t values[1];
 667         value_list_t vl = VALUE_LIST_INIT;
 668
 669         values[0].gauge = value;
 670
 671         vl.values = values;
 672         vl.values_len = 1;
 673         sstrncpy (vl.host, hostname_g, sizeof (vl.host));
 674         sstrncpy (vl.plugin, "processes", sizeof (vl.plugin));
 675         sstrncpy (vl.plugin_instance, "", sizeof (vl.plugin_instance));
 676         sstrncpy (vl.type, "ps_state", sizeof (vl.type));
 677         sstrncpy (vl.type_instance, state, sizeof (vl.type_instance));
 678
 679         plugin_dispatch_values (&vl);
 680 }
 681
 682 /* submit info about specific process (e.g.: memory taken, cpu usage, etc..) */
 683 static void ps_submit_proc_list (procstat_t *ps)
 684 {
 685         value_t values[2];
 686         value_list_t vl = VALUE_LIST_INIT;
 687
 688         vl.values = values;
 689         vl.values_len = 2;
 690         sstrncpy (vl.host, hostname_g, sizeof (vl.host));
 691         sstrncpy (vl.plugin, "processes", sizeof (vl.plugin));
 692         sstrncpy (vl.plugin_instance, ps->name, sizeof (vl.plugin_instance));
 693
 694         sstrncpy (vl.type, "ps_vm", sizeof (vl.type));
 695         vl.values[0].gauge = ps->vmem_size;
 696         vl.values_len = 1;
 697         plugin_dispatch_values (&vl);
 698
 699         sstrncpy (vl.type, "ps_rss", sizeof (vl.type));
 700         vl.values[0].gauge = ps->vmem_rss;
 701         vl.values_len = 1;
 702         plugin_dispatch_values (&vl);
 703
 704         sstrncpy (vl.type, "ps_data", sizeof (vl.type));
 705         vl.values[0].gauge = ps->vmem_data;
 706         vl.values_len = 1;
 707         plugin_dispatch_values (&vl);
 708
 709         sstrncpy (vl.type, "ps_code", sizeof (vl.type));
 710         vl.values[0].gauge = ps->vmem_code;
 711         vl.values_len = 1;
 712         plugin_dispatch_values (&vl);
 713
 714         sstrncpy (vl.type, "ps_stacksize", sizeof (vl.type));
 715         vl.values[0].gauge = ps->stack_size;
 716         vl.values_len = 1;
 717         plugin_dispatch_values (&vl);
 718
 719         sstrncpy (vl.type, "ps_cputime", sizeof (vl.type));
 720         vl.values[0].derive = ps->cpu_user_counter;
 721         vl.values[1].derive = ps->cpu_system_counter;
 722         vl.values_len = 2;
 723         plugin_dispatch_values (&vl);
 724
 725         sstrncpy (vl.type, "ps_count", sizeof (vl.type));
 726         vl.values[0].gauge = ps->num_proc;
 727         vl.values[1].gauge = ps->num_lwp;
 728         vl.values_len = 2;
 729         plugin_dispatch_values (&vl);
 730
 731         sstrncpy (vl.type, "ps_pagefaults", sizeof (vl.type));
 732         vl.values[0].derive = ps->vmem_minflt_counter;
 733         vl.values[1].derive = ps->vmem_majflt_counter;
 734         vl.values_len = 2;
 735         plugin_dispatch_values (&vl);
 736
 737         if ( (ps->io_rchar != -1) && (ps->io_wchar != -1) )
 738         {
 739                 sstrncpy (vl.type, "ps_disk_octets", sizeof (vl.type));
 740                 vl.values[0].derive = ps->io_rchar;
 741                 vl.values[1].derive = ps->io_wchar;
 742                 vl.values_len = 2;
 743                 plugin_dispatch_values (&vl);
 744         }
 745
 746         if ( (ps->io_syscr != -1) && (ps->io_syscw != -1) )
 747         {
 748                 sstrncpy (vl.type, "ps_disk_ops", sizeof (vl.type));
 749                 vl.values[0].derive = ps->io_syscr;
 750                 vl.values[1].derive = ps->io_syscw;
 751                 vl.values_len = 2;
 752                 plugin_dispatch_values (&vl);
 753         }
 754
 755         if ( report_ctx_switch )
 756         {
 757                 sstrncpy (vl.type, "contextswitch", sizeof (vl.type));
 758                 sstrncpy (vl.type_instance, "voluntary", sizeof (vl.type_instance));
 759                 vl.values[0].derive = ps->cswitch_vol;
 760                 vl.values_len = 1;
 761                 plugin_dispatch_values (&vl);
 762
 763                 sstrncpy (vl.type, "contextswitch", sizeof (vl.type));
 764                 sstrncpy (vl.type_instance, "involuntary", sizeof (vl.type_instance));
 765                 vl.values[0].derive = ps->cswitch_invol;
 766                 vl.values_len = 1;
 767                 plugin_dispatch_values (&vl);
 768         }
 769
 770         DEBUG ("name = %s; num_proc = %lu; num_lwp = %lu; "
 771                         "vmem_size = %lu; vmem_rss = %lu; vmem_data = %lu; "
 772                         "vmem_code = %lu; "
 773                         "vmem_minflt_counter = %"PRIi64"; vmem_majflt_counter = %"PRIi64"; "
 774                         "cpu_user_counter = %"PRIi64"; cpu_system_counter = %"PRIi64"; "
 775                         "io_rchar = %"PRIi64"; io_wchar = %"PRIi64"; "
 776                         "io_syscr = %"PRIi64"; io_syscw = %"PRIi64"; "
 777                         "cswitch_vol = %"PRIi64"; cswitch_invol = %"PRIi64";",
 778                         ps->name, ps->num_proc, ps->num_lwp,
 779                         ps->vmem_size, ps->vmem_rss,
 780                         ps->vmem_data, ps->vmem_code,
 781                         ps->vmem_minflt_counter, ps->vmem_majflt_counter,
 782                         ps->cpu_user_counter, ps->cpu_system_counter,
 783                         ps->io_rchar, ps->io_wchar, ps->io_syscr, ps->io_syscw,
 784                         ps->cswitch_vol, ps->cswitch_invol);
 785 } /* void ps_submit_proc_list */
 786
 787 #if KERNEL_LINUX || KERNEL_SOLARIS
 788 static void ps_submit_fork_rate (derive_t value)
 789 {
 790         value_t values[1];
 791         value_list_t vl = VALUE_LIST_INIT;
 792
 793         values[0].derive = value;
 794
 795         vl.values = values;
 796         vl.values_len = 1;
 797         sstrncpy(vl.host, hostname_g, sizeof (vl.host));
 798         sstrncpy(vl.plugin, "processes", sizeof (vl.plugin));
 799         sstrncpy(vl.plugin_instance, "", sizeof (vl.plugin_instance));
 800         sstrncpy(vl.type, "fork_rate", sizeof (vl.type));
 801         sstrncpy(vl.type_instance, "", sizeof (vl.type_instance));
 802
 803         plugin_dispatch_values(&vl);
 804 }
 805 #endif /* KERNEL_LINUX || KERNEL_SOLARIS*/
 806
 807 /* ------- additional functions for KERNEL_LINUX/HAVE_THREAD_INFO ------- */
 808 #if KERNEL_LINUX
 809 static procstat_t *ps_read_tasks_status (long pid, procstat_t *ps)
 810 {
 811         char           dirname[64];
 812         DIR           *dh;
 813         char           filename[64];
 814         FILE          *fh;
 815         struct dirent *ent;
 816         derive_t cswitch_vol = 0;
 817         derive_t cswitch_invol = 0;
 818         char buffer[1024];
 819         char *fields[8];
 820         int numfields;
 821
 822         ssnprintf (dirname, sizeof (dirname), "/proc/%li/task", pid);
 823
 824         if ((dh = opendir (dirname)) == NULL)
 825         {
 826                 DEBUG ("Failed to open directory `%s'", dirname);
 827                 return (NULL);
 828         }
 829
 830         while ((ent = readdir (dh)) != NULL)
 831         {
 832                 char *tpid;
 833
 834                 if (!isdigit ((int) ent->d_name[0]))
 835                         continue;
 836
 837                 tpid = ent->d_name;
 838
 839                 ssnprintf (filename, sizeof (filename), "/proc/%li/task/%s/status", pid, tpid);
 840                 if ((fh = fopen (filename, "r")) == NULL)
 841                 {
 842                         DEBUG ("Failed to open file `%s'", filename);
 843                         continue;
 844                 }
 845
 846                 while (fgets (buffer, sizeof(buffer), fh) != NULL)
 847                 {
 848                         derive_t tmp;
 849                         char *endptr;
 850
 851                         if (strncmp (buffer, "voluntary_ctxt_switches", 23) != 0
 852                                 && strncmp (buffer, "nonvoluntary_ctxt_switches", 26) != 0)
 853                                 continue;
 854
 855                         numfields = strsplit (buffer, fields,
 856                                 STATIC_ARRAY_SIZE (fields));
 857
 858                         if (numfields < 2)
 859                                 continue;
 860
 861                         errno = 0;
 862                         endptr = NULL;
 863                         tmp = (derive_t) strtoll (fields[1], &endptr, /* base = */ 10);
 864                         if ((errno == 0) && (endptr != fields[1]))
 865                         {
 866                                 if (strncmp (buffer, "voluntary_ctxt_switches", 23) == 0)
 867                                 {
 868                                         cswitch_vol += tmp;
 869                                 }
 870                                 else if (strncmp (buffer, "nonvoluntary_ctxt_switches", 26) == 0)
 871                                 {
 872                                         cswitch_invol += tmp;
 873                                 }
 874                         }
 875                 } /* while (fgets) */
 876
 877                 if (fclose (fh))
 878                 {
 879                         char errbuf[1024];
 880                                 WARNING ("processes: fclose: %s",
 881                                         sstrerror (errno, errbuf, sizeof (errbuf)));
 882                 }
 883         }
 884         closedir (dh);
 885
 886         ps->cswitch_vol = cswitch_vol;
 887         ps->cswitch_invol = cswitch_invol;
 888
 889         return (ps);
 890 } /* int *ps_read_tasks_status */
 891
 892 /* Read data from /proc/pid/status */
 893 static procstat_t *ps_read_status (long pid, procstat_t *ps)
 894 {
 895         FILE *fh;
 896         char buffer[1024];
 897         char filename[64];
 898         unsigned long lib = 0;
 899         unsigned long exe = 0;
 900         unsigned long data = 0;
 901         unsigned long threads = 0;
 902         char *fields[8];
 903         int numfields;
 904
 905         ssnprintf (filename, sizeof (filename), "/proc/%li/status", pid);
 906         if ((fh = fopen (filename, "r")) == NULL)
 907                 return (NULL);
 908
 909         while (fgets (buffer, sizeof(buffer), fh) != NULL)
 910         {
 911                 unsigned long tmp;
 912                 char *endptr;
 913
 914                 if (strncmp (buffer, "Vm", 2) != 0
 915                                 && strncmp (buffer, "Threads", 7) != 0)
 916                         continue;
 917
 918                 numfields = strsplit (buffer, fields,
 919                                 STATIC_ARRAY_SIZE (fields));
 920
 921                 if (numfields < 2)
 922                         continue;
 923
 924                 errno = 0;
 925                 endptr = NULL;
 926                 tmp = strtoul (fields[1], &endptr, /* base = */ 10);
 927                 if ((errno == 0) && (endptr != fields[1]))
 928                 {
 929                         if (strncmp (buffer, "VmData", 6) == 0)
 930                         {
 931                                 data = tmp;
 932                         }
 933                         else if (strncmp (buffer, "VmLib", 5) == 0)
 934                         {
 935                                 lib = tmp;
 936                         }
 937                         else if  (strncmp(buffer, "VmExe", 5) == 0)
 938                         {
 939                                 exe = tmp;
 940                         }
 941                         else if  (strncmp(buffer, "Threads", 7) == 0)
 942                         {
 943                                 threads = tmp;
 944                         }
 945                 }
 946         } /* while (fgets) */
 947
 948         if (fclose (fh))
 949         {
 950                 char errbuf[1024];
 951                 WARNING ("processes: fclose: %s",
 952                                 sstrerror (errno, errbuf, sizeof (errbuf)));
 953         }
 954
 955         ps->vmem_data = data * 1024;
 956         ps->vmem_code = (exe + lib) * 1024;
 957         if (threads != 0)
 958                 ps->num_lwp = threads;
 959
 960         return (ps);
 961 } /* procstat_t *ps_read_vmem */
 962
 963 static procstat_t *ps_read_io (long pid, procstat_t *ps)
 964 {
 965         FILE *fh;
 966         char buffer[1024];
 967         char filename[64];
 968
 969         char *fields[8];
 970         int numfields;
 971
 972         ssnprintf (filename, sizeof (filename), "/proc/%li/io", pid);
 973         if ((fh = fopen (filename, "r")) == NULL)
 974                 return (NULL);
 975
 976         while (fgets (buffer, sizeof (buffer), fh) != NULL)
 977         {
 978                 derive_t *val = NULL;
 979                 long long tmp;
 980                 char *endptr;
 981
 982                 if (strncasecmp (buffer, "rchar:", 6) == 0)
 983                         val = &(ps->io_rchar);
 984                 else if (strncasecmp (buffer, "wchar:", 6) == 0)
 985                         val = &(ps->io_wchar);
 986                 else if (strncasecmp (buffer, "syscr:", 6) == 0)
 987                         val = &(ps->io_syscr);
 988                 else if (strncasecmp (buffer, "syscw:", 6) == 0)
 989                         val = &(ps->io_syscw);
 990                 else
 991                         continue;
 992
 993                 numfields = strsplit (buffer, fields,
 994                                 STATIC_ARRAY_SIZE (fields));
 995
 996                 if (numfields < 2)
 997                         continue;
 998
 999                 errno = 0;
1000                 endptr = NULL;
1001                 tmp = strtoll (fields[1], &endptr, /* base = */ 10);
1002                 if ((errno != 0) || (endptr == fields[1]))
1003                         *val = -1;
1004                 else
1005                         *val = (derive_t) tmp;
1006         } /* while (fgets) */
1007
1008         if (fclose (fh))
1009         {
1010                 char errbuf[1024];
1011                 WARNING ("processes: fclose: %s",
1012                                 sstrerror (errno, errbuf, sizeof (errbuf)));
1013         }
1014
1015         return (ps);
1016 } /* procstat_t *ps_read_io */
1017
1018 static int ps_read_process (long pid, procstat_t *ps, char *state)
1019 {
1020         char  filename[64];
1021         char  buffer[1024];
1022
1023         char *fields[64];
1024         char  fields_len;
1025
1026         size_t buffer_len;
1027
1028         char  *buffer_ptr;
1029         size_t name_start_pos;
1030         size_t name_end_pos;
1031         size_t name_len;
1032
1033         derive_t cpu_user_counter;
1034         derive_t cpu_system_counter;
1035         long long unsigned vmem_size;
1036         long long unsigned vmem_rss;
1037         long long unsigned stack_size;
1038
1039         ssize_t status;
1040
1041         memset (ps, 0, sizeof (procstat_t));
1042
1043         ssnprintf (filename, sizeof (filename), "/proc/%li/stat", pid);
1044
1045         status = read_file_contents (filename, buffer, sizeof(buffer) - 1);
1046         if (status <= 0)
1047                 return (-1);
1048         buffer_len = (size_t) status;
1049         buffer[buffer_len] = 0;
1050
1051         /* The name of the process is enclosed in parens. Since the name can
1052          * contain parens itself, spaces, numbers and pretty much everything
1053          * else, use these to determine the process name. We don't use
1054          * strchr(3) and strrchr(3) to avoid pointer arithmetic which would
1055          * otherwise be required to determine name_len. */
1056         name_start_pos = 0;
1057         while (name_start_pos < buffer_len && buffer[name_start_pos] != '(')
1058                 name_start_pos++;
1059
1060         name_end_pos = buffer_len;
1061         while (name_end_pos > 0 && buffer[name_end_pos] != ')')
1062                 name_end_pos--;
1063
1064         /* Either '(' or ')' is not found or they are in the wrong order.
1065          * Anyway, something weird that shouldn't happen ever. */
1066         if (name_start_pos >= name_end_pos)
1067         {
1068                 ERROR ("processes plugin: name_start_pos = %zu >= name_end_pos = %zu",
1069                                 name_start_pos, name_end_pos);
1070                 return (-1);
1071         }
1072
1073         name_len = (name_end_pos - name_start_pos) - 1;
1074         if (name_len >= sizeof (ps->name))
1075                 name_len = sizeof (ps->name) - 1;
1076
1077         sstrncpy (ps->name, &buffer[name_start_pos + 1], name_len + 1);
1078
1079         if ((buffer_len - name_end_pos) < 2)
1080                 return (-1);
1081         buffer_ptr = &buffer[name_end_pos + 2];
1082
1083         fields_len = strsplit (buffer_ptr, fields, STATIC_ARRAY_SIZE (fields));
1084         if (fields_len < 22)
1085         {
1086                 DEBUG ("processes plugin: ps_read_process (pid = %li):"
1087                                 " `%s' has only %i fields..",
1088                                 pid, filename, fields_len);
1089                 return (-1);
1090         }
1091
1092         *state = fields[0][0];
1093
1094         if (*state == 'Z')
1095         {
1096                 ps->num_lwp  = 0;
1097                 ps->num_proc = 0;
1098         }
1099         else
1100         {
1101                 ps->num_lwp = strtoul (fields[17], /* endptr = */ NULL, /* base = */ 10);
1102                 if ((ps_read_status(pid, ps)) == NULL)
1103                 {
1104                         /* No VMem data */
1105                         ps->vmem_data = -1;
1106                         ps->vmem_code = -1;
1107                         DEBUG("ps_read_process: did not get vmem data for pid %li", pid);
1108                 }
1109                 if (ps->num_lwp == 0)
1110                         ps->num_lwp = 1;
1111                 ps->num_proc = 1;
1112         }
1113
1114         /* Leave the rest at zero if this is only a zombi */
1115         if (ps->num_proc == 0)
1116         {
1117                 DEBUG ("processes plugin: This is only a zombie: pid = %li; "
1118                                 "name = %s;", pid, ps->name);
1119                 return (0);
1120         }
1121
1122         cpu_user_counter   = atoll (fields[11]);
1123         cpu_system_counter = atoll (fields[12]);
1124         vmem_size          = atoll (fields[20]);
1125         vmem_rss           = atoll (fields[21]);
1126         ps->vmem_minflt_counter = atol (fields[7]);
1127         ps->vmem_majflt_counter = atol (fields[9]);
1128
1129         {
1130                 unsigned long long stack_start = atoll (fields[25]);
1131                 unsigned long long stack_ptr   = atoll (fields[26]);
1132
1133                 stack_size = (stack_start > stack_ptr)
1134                         ? stack_start - stack_ptr
1135                         : stack_ptr - stack_start;
1136         }
1137
1138         /* Convert jiffies to useconds */
1139         cpu_user_counter   = cpu_user_counter   * 1000000 / CONFIG_HZ;
1140         cpu_system_counter = cpu_system_counter * 1000000 / CONFIG_HZ;
1141         vmem_rss = vmem_rss * pagesize_g;
1142
1143         ps->cpu_user_counter = cpu_user_counter;
1144         ps->cpu_system_counter = cpu_system_counter;
1145         ps->vmem_size = (unsigned long) vmem_size;
1146         ps->vmem_rss = (unsigned long) vmem_rss;
1147         ps->stack_size = (unsigned long) stack_size;
1148
1149         if ( (ps_read_io (pid, ps)) == NULL)
1150         {
1151                 /* no io data */
1152                 ps->io_rchar = -1;
1153                 ps->io_wchar = -1;
1154                 ps->io_syscr = -1;
1155                 ps->io_syscw = -1;
1156
1157                 DEBUG("ps_read_process: not get io data for pid %li", pid);
1158         }
1159
1160         if ( report_ctx_switch )
1161         {
1162                 if ( (ps_read_tasks_status(pid, ps)) == NULL)
1163                 {
1164                         ps->cswitch_vol = -1;
1165                         ps->cswitch_invol = -1;
1166
1167                         DEBUG("ps_read_tasks_status: not get context "
1168                                         "switch data for pid %li", pid);
1169                 }
1170         }
1171
1172         /* success */
1173         return (0);
1174 } /* int ps_read_process (...) */
1175
1176 static char *ps_get_cmdline (long pid, char *name, char *buf, size_t buf_len)
1177 {
1178         char  *buf_ptr;
1179         size_t len;
1180
1181         char file[PATH_MAX];
1182         int  fd;
1183
1184         size_t n;
1185
1186         if ((pid < 1) || (NULL == buf) || (buf_len < 2))
1187                 return NULL;
1188
1189         ssnprintf (file, sizeof (file), "/proc/%li/cmdline", pid);
1190
1191         errno = 0;
1192         fd = open (file, O_RDONLY);
1193         if (fd < 0) {
1194                 char errbuf[4096];
1195                 /* ENOENT means the process exited while we were handling it.
1196                  * Don't complain about this, it only fills the logs. */
1197                 if (errno != ENOENT)
1198                         WARNING ("processes plugin: Failed to open `%s': %s.", file,
1199                                         sstrerror (errno, errbuf, sizeof (errbuf)));
1200                 return NULL;
1201         }
1202
1203         buf_ptr = buf;
1204         len     = buf_len;
1205
1206         n = 0;
1207
1208         while (42) {
1209                 ssize_t status;
1210
1211                 status = read (fd, (void *)buf_ptr, len);
1212
1213                 if (status < 0) {
1214                         char errbuf[1024];
1215
1216                         if ((EAGAIN == errno) || (EINTR == errno))
1217                                 continue;
1218
1219                         WARNING ("processes plugin: Failed to read from `%s': %s.", file,
1220                                         sstrerror (errno, errbuf, sizeof (errbuf)));
1221                         close (fd);
1222                         return NULL;
1223                 }
1224
1225                 n += status;
1226
1227                 if (status == 0)
1228                         break;
1229
1230                 buf_ptr += status;
1231                 len     -= status;
1232
1233                 if (len == 0)
1234                         break;
1235         }
1236
1237         close (fd);
1238
1239         if (0 == n) {
1240                 /* cmdline not available; e.g. kernel thread, zombie */
1241                 if (NULL == name)
1242                         return NULL;
1243
1244                 ssnprintf (buf, buf_len, "[%s]", name);
1245                 return buf;
1246         }
1247
1248         assert (n <= buf_len);
1249
1250         if (n == buf_len)
1251                 --n;
1252         buf[n] = '\0';
1253
1254         --n;
1255         /* remove trailing whitespace */
1256         while ((n > 0) && (isspace (buf[n]) || ('\0' == buf[n]))) {
1257                 buf[n] = '\0';
1258                 --n;
1259         }
1260
1261         /* arguments are separated by '\0' in /proc/<pid>/cmdline */
1262         while (n > 0) {
1263                 if ('\0' == buf[n])
1264                         buf[n] = ' ';
1265                 --n;
1266         }
1267         return buf;
1268 } /* char *ps_get_cmdline (...) */
1269
1270 static int read_fork_rate (void)
1271 {
1272         FILE *proc_stat;
1273         char buffer[1024];
1274         value_t value;
1275         _Bool value_valid = 0;
1276
1277         proc_stat = fopen ("/proc/stat", "r");
1278         if (proc_stat == NULL)
1279         {
1280                 char errbuf[1024];
1281                 ERROR ("processes plugin: fopen (/proc/stat) failed: %s",
1282                                 sstrerror (errno, errbuf, sizeof (errbuf)));
1283                 return (-1);
1284         }
1285
1286         while (fgets (buffer, sizeof (buffer), proc_stat) != NULL)
1287         {
1288                 int status;
1289                 char *fields[3];
1290                 int fields_num;
1291
1292                 fields_num = strsplit (buffer, fields,
1293                                 STATIC_ARRAY_SIZE (fields));
1294                 if (fields_num != 2)
1295                         continue;
1296
1297                 if (strcmp ("processes", fields[0]) != 0)
1298                         continue;
1299
1300                 status = parse_value (fields[1], &value, DS_TYPE_DERIVE);
1301                 if (status == 0)
1302                         value_valid = 1;
1303
1304                 break;
1305         }
1306         fclose(proc_stat);
1307
1308         if (!value_valid)
1309                 return (-1);
1310
1311         ps_submit_fork_rate (value.derive);
1312         return (0);
1313 }
1314 #endif /*KERNEL_LINUX */
1315
1316 #if KERNEL_SOLARIS
1317 static char *ps_get_cmdline (long pid, char *name __attribute__((unused)), /* {{{ */
1318     char *buffer, size_t buffer_size)
1319 {
1320         char path[PATH_MAX];
1321         psinfo_t info;
1322         ssize_t status;
1323
1324         snprintf(path, sizeof (path), "/proc/%li/psinfo", pid);
1325
1326         status = read_file_contents (path, (void *) &info, sizeof (info));
1327         if ((status < 0) || (((size_t) status) != sizeof (info)))
1328         {
1329                 ERROR ("processes plugin: Unexpected return value "
1330                                 "while reading \"%s\": "
1331                                 "Returned %zd but expected %zu.",
1332                                 path, status, buffer_size);
1333                 return (NULL);
1334         }
1335
1336         info.pr_psargs[sizeof (info.pr_psargs) - 1] = 0;
1337         sstrncpy (buffer, info.pr_psargs, buffer_size);
1338
1339         return (buffer);
1340 } /* }}} int ps_get_cmdline */
1341
1342 /*
1343  * Reads process information on the Solaris OS. The information comes mainly from
1344  * /proc/PID/status, /proc/PID/psinfo and /proc/PID/usage
1345  * The values for input and ouput chars are calculated "by hand"
1346  * Added a few "solaris" specific process states as well
1347  */
1348 static int ps_read_process(long pid, procstat_t *ps, char *state)
1349 {
1350         char filename[64];
1351         char f_psinfo[64], f_usage[64];
1352         char *buffer;
1353
1354         pstatus_t *myStatus;
1355         psinfo_t *myInfo;
1356         prusage_t *myUsage;
1357
1358         snprintf(filename, sizeof (filename), "/proc/%li/status", pid);
1359         snprintf(f_psinfo, sizeof (f_psinfo), "/proc/%li/psinfo", pid);
1360         snprintf(f_usage, sizeof (f_usage), "/proc/%li/usage", pid);
1361
1362
1363         buffer = calloc(1, sizeof (pstatus_t));
1364         read_file_contents(filename, buffer, sizeof (pstatus_t));
1365         myStatus = (pstatus_t *) buffer;
1366
1367         buffer = calloc(1, sizeof (psinfo_t));
1368         read_file_contents(f_psinfo, buffer, sizeof (psinfo_t));
1369         myInfo = (psinfo_t *) buffer;
1370
1371         buffer = calloc(1, sizeof (prusage_t));
1372         read_file_contents(f_usage, buffer, sizeof (prusage_t));
1373         myUsage = (prusage_t *) buffer;
1374
1375         sstrncpy(ps->name, myInfo->pr_fname, sizeof (myInfo->pr_fname));
1376         ps->num_lwp = myStatus->pr_nlwp;
1377         if (myInfo->pr_wstat != 0) {
1378                 ps->num_proc = 0;
1379                 ps->num_lwp = 0;
1380                 *state = (char) 'Z';
1381
1382                 sfree(myStatus);
1383                 sfree(myInfo);
1384                 sfree(myUsage);
1385                 return (0);
1386         } else {
1387                 ps->num_proc = 1;
1388                 ps->num_lwp = myInfo->pr_nlwp;
1389         }
1390
1391         /*
1392          * Convert system time and user time from nanoseconds to microseconds
1393          * for compatibility with the linux module
1394          */
1395         ps->cpu_system_counter = myStatus -> pr_stime.tv_nsec / 1000;
1396         ps->cpu_user_counter = myStatus -> pr_utime.tv_nsec / 1000;
1397
1398         /*
1399          * Convert rssize from KB to bytes to be consistent w/ the linux module
1400          */
1401         ps->vmem_rss = myInfo->pr_rssize * 1024;
1402         ps->vmem_size = myInfo->pr_size * 1024;
1403         ps->vmem_minflt_counter = myUsage->pr_minf;
1404         ps->vmem_majflt_counter = myUsage->pr_majf;
1405
1406         /*
1407          * TODO: Data and code segment calculations for Solaris
1408          */
1409
1410         ps->vmem_data = -1;
1411         ps->vmem_code = -1;
1412         ps->stack_size = myStatus->pr_stksize;
1413
1414         /*
1415          * Calculating input/ouput chars
1416          * Formula used is total chars / total blocks => chars/block
1417          * then convert input/output blocks to chars
1418          */
1419         ulong_t tot_chars = myUsage->pr_ioch;
1420         ulong_t tot_blocks = myUsage->pr_inblk + myUsage->pr_oublk;
1421         ulong_t chars_per_block = 1;
1422         if (tot_blocks != 0)
1423                 chars_per_block = tot_chars / tot_blocks;
1424         ps->io_rchar = myUsage->pr_inblk * chars_per_block;
1425         ps->io_wchar = myUsage->pr_oublk * chars_per_block;
1426         ps->io_syscr = myUsage->pr_sysc;
1427         ps->io_syscw = myUsage->pr_sysc;
1428
1429         /*
1430          * TODO: context switch counters for Solaris
1431    */
1432         ps->cswitch_vol   = -1;
1433         ps->cswitch_invol = -1;
1434
1435
1436         /*
1437          * TODO: Find way of setting BLOCKED and PAGING status
1438          */
1439
1440         *state = (char) 'R';
1441         if (myStatus->pr_flags & PR_ASLEEP)
1442                 *state = (char) 'S';
1443         else if (myStatus->pr_flags & PR_STOPPED)
1444                 *state = (char) 'T';
1445         else if (myStatus->pr_flags & PR_DETACH)
1446                 *state = (char) 'E';
1447         else if (myStatus->pr_flags & PR_DAEMON)
1448                 *state = (char) 'A';
1449         else if (myStatus->pr_flags & PR_ISSYS)
1450                 *state = (char) 'Y';
1451         else if (myStatus->pr_flags & PR_ORPHAN)
1452                 *state = (char) 'O';
1453
1454         sfree(myStatus);
1455         sfree(myInfo);
1456         sfree(myUsage);
1457
1458         return (0);
1459 }
1460
1461 /*
1462  * Reads the number of threads created since the last reboot. On Solaris these
1463  * are retrieved from kstat (module cpu, name sys, class misc, stat nthreads).
1464  * The result is the sum for all the threads created on each cpu
1465  */
1466 static int read_fork_rate (void)
1467 {
1468         extern kstat_ctl_t *kc;
1469         kstat_t *ksp_chain = NULL;
1470         derive_t result = 0;
1471
1472         if (kc == NULL)
1473                 return (-1);
1474
1475         for (ksp_chain = kc->kc_chain;
1476                         ksp_chain != NULL;
1477                         ksp_chain = ksp_chain->ks_next)
1478         {
1479                 if ((strcmp (ksp_chain->ks_module, "cpu") == 0)
1480                                 && (strcmp (ksp_chain->ks_name, "sys") == 0)
1481                                 && (strcmp (ksp_chain->ks_class, "misc") == 0))
1482                 {
1483                         long long tmp;
1484
1485                         kstat_read (kc, ksp_chain, NULL);
1486
1487                         tmp = get_kstat_value(ksp_chain, "nthreads");
1488                         if (tmp != -1LL)
1489                                 result += tmp;
1490                 }
1491         }
1492
1493         ps_submit_fork_rate (result);
1494         return (0);
1495 }
1496 #endif /* KERNEL_SOLARIS */
1497
1498 #if HAVE_THREAD_INFO
1499 static int mach_get_task_name (task_t t, int *pid, char *name, size_t name_max_len)
1500 {
1501         int mib[4];
1502
1503         struct kinfo_proc kp;
1504         size_t            kp_size;
1505
1506         mib[0] = CTL_KERN;
1507         mib[1] = KERN_PROC;
1508         mib[2] = KERN_PROC_PID;
1509
1510         if (pid_for_task (t, pid) != KERN_SUCCESS)
1511                 return (-1);
1512         mib[3] = *pid;
1513
1514         kp_size = sizeof (kp);
1515         if (sysctl (mib, 4, &kp, &kp_size, NULL, 0) != 0)
1516                 return (-1);
1517
1518         if (name_max_len > (MAXCOMLEN + 1))
1519                 name_max_len = MAXCOMLEN + 1;
1520
1521         strncpy (name, kp.kp_proc.p_comm, name_max_len - 1);
1522         name[name_max_len - 1] = '\0';
1523
1524         DEBUG ("pid = %i; name = %s;", *pid, name);
1525
1526         /* We don't do the special handling for `p_comm == "LaunchCFMApp"' as
1527          * `top' does it, because it is a lot of work and only used when
1528          * debugging. -octo */
1529
1530         return (0);
1531 }
1532 #endif /* HAVE_THREAD_INFO */
1533 /* ------- end of additional functions for KERNEL_LINUX/HAVE_THREAD_INFO ------- */
1534
1535 /* do actual readings from kernel */
1536 static int ps_read (void)
1537 {
1538 #if HAVE_THREAD_INFO
1539         kern_return_t            status;
1540
1541         int                      pset;
1542         processor_set_t          port_pset_priv;
1543
1544         int                      task;
1545         task_array_t             task_list;
1546         mach_msg_type_number_t   task_list_len;
1547
1548         int                      task_pid;
1549         char                     task_name[MAXCOMLEN + 1];
1550
1551         int                      thread;
1552         thread_act_array_t       thread_list;
1553         mach_msg_type_number_t   thread_list_len;
1554         thread_basic_info_data_t thread_data;
1555         mach_msg_type_number_t   thread_data_len;
1556
1557         int running  = 0;
1558         int sleeping = 0;
1559         int zombies  = 0;
1560         int stopped  = 0;
1561         int blocked  = 0;
1562
1563         procstat_t *ps;
1564         procstat_entry_t pse;
1565
1566         ps_list_reset ();
1567
1568         /*
1569          * The Mach-concept is a little different from the traditional UNIX
1570          * concept: All the work is done in threads. Threads are contained in
1571          * `tasks'. Therefore, `task status' doesn't make much sense, since
1572          * it's actually a `thread status'.
1573          * Tasks are assigned to sets of processors, so that's where you go to
1574          * get a list.
1575          */
1576         for (pset = 0; pset < pset_list_len; pset++)
1577         {
1578                 if ((status = host_processor_set_priv (port_host_self,
1579                                                 pset_list[pset],
1580                                                 &port_pset_priv)) != KERN_SUCCESS)
1581                 {
1582                         ERROR ("host_processor_set_priv failed: %s\n",
1583                                         mach_error_string (status));
1584                         continue;
1585                 }
1586
1587                 if ((status = processor_set_tasks (port_pset_priv,
1588                                                 &task_list,
1589                                                 &task_list_len)) != KERN_SUCCESS)
1590                 {
1591                         ERROR ("processor_set_tasks failed: %s\n",
1592                                         mach_error_string (status));
1593                         mach_port_deallocate (port_task_self, port_pset_priv);
1594                         continue;
1595                 }
1596
1597                 for (task = 0; task < task_list_len; task++)
1598                 {
1599                         ps = NULL;
1600                         if (mach_get_task_name (task_list[task],
1601                                                 &task_pid,
1602                                                 task_name, PROCSTAT_NAME_LEN) == 0)
1603                         {
1604                                 /* search for at least one match */
1605                                 for (ps = list_head_g; ps != NULL; ps = ps->next)
1606                                         /* FIXME: cmdline should be here instead of NULL */
1607                                         if (ps_list_match (task_name, NULL, ps) == 1)
1608                                                 break;
1609                         }
1610
1611                         /* Collect more detailed statistics for this process */
1612                         if (ps != NULL)
1613                         {
1614                                 task_basic_info_data_t        task_basic_info;
1615                                 mach_msg_type_number_t        task_basic_info_len;
1616                                 task_events_info_data_t       task_events_info;
1617                                 mach_msg_type_number_t        task_events_info_len;
1618                                 task_absolutetime_info_data_t task_absolutetime_info;
1619                                 mach_msg_type_number_t        task_absolutetime_info_len;
1620
1621                                 memset (&pse, '\0', sizeof (pse));
1622                                 pse.id = task_pid;
1623
1624                                 task_basic_info_len = TASK_BASIC_INFO_COUNT;
1625                                 status = task_info (task_list[task],
1626                                                 TASK_BASIC_INFO,
1627                                                 (task_info_t) &task_basic_info,
1628                                                 &task_basic_info_len);
1629                                 if (status != KERN_SUCCESS)
1630                                 {
1631                                         ERROR ("task_info failed: %s",
1632                                                         mach_error_string (status));
1633                                         continue; /* with next thread_list */
1634                                 }
1635
1636                                 task_events_info_len = TASK_EVENTS_INFO_COUNT;
1637                                 status = task_info (task_list[task],
1638                                                 TASK_EVENTS_INFO,
1639                                                 (task_info_t) &task_events_info,
1640                                                 &task_events_info_len);
1641                                 if (status != KERN_SUCCESS)
1642                                 {
1643                                         ERROR ("task_info failed: %s",
1644                                                         mach_error_string (status));
1645                                         continue; /* with next thread_list */
1646                                 }
1647
1648                                 task_absolutetime_info_len = TASK_ABSOLUTETIME_INFO_COUNT;
1649                                 status = task_info (task_list[task],
1650                                                 TASK_ABSOLUTETIME_INFO,
1651                                                 (task_info_t) &task_absolutetime_info,
1652                                                 &task_absolutetime_info_len);
1653                                 if (status != KERN_SUCCESS)
1654                                 {
1655                                         ERROR ("task_info failed: %s",
1656                                                         mach_error_string (status));
1657                                         continue; /* with next thread_list */
1658                                 }
1659
1660                                 pse.num_proc++;
1661                                 pse.vmem_size = task_basic_info.virtual_size;
1662                                 pse.vmem_rss = task_basic_info.resident_size;
1663                                 /* Does not seem to be easily exposed */
1664                                 pse.vmem_data = 0;
1665                                 pse.vmem_code = 0;
1666
1667                                 pse.vmem_minflt_counter = task_events_info.cow_faults;
1668                                 pse.vmem_majflt_counter = task_events_info.faults;
1669
1670                                 pse.cpu_user_counter = task_absolutetime_info.total_user;
1671                                 pse.cpu_system_counter = task_absolutetime_info.total_system;
1672
1673                                 /* context switch counters not implemented */
1674                                 pse.cswitch_vol   = -1;
1675                                 pse.cswitch_invol = -1;
1676                         }
1677
1678                         status = task_threads (task_list[task], &thread_list,
1679                                         &thread_list_len);
1680                         if (status != KERN_SUCCESS)
1681                         {
1682                                 /* Apple's `top' treats this case a zombie. It
1683                                  * makes sense to some extend: A `zombie'
1684                                  * thread is nonsense, since the task/process
1685                                  * is dead. */
1686                                 zombies++;
1687                                 DEBUG ("task_threads failed: %s",
1688                                                 mach_error_string (status));
1689                                 if (task_list[task] != port_task_self)
1690                                         mach_port_deallocate (port_task_self,
1691                                                         task_list[task]);
1692                                 continue; /* with next task_list */
1693                         }
1694
1695                         for (thread = 0; thread < thread_list_len; thread++)
1696                         {
1697                                 thread_data_len = THREAD_BASIC_INFO_COUNT;
1698                                 status = thread_info (thread_list[thread],
1699                                                 THREAD_BASIC_INFO,
1700                                                 (thread_info_t) &thread_data,
1701                                                 &thread_data_len);
1702                                 if (status != KERN_SUCCESS)
1703                                 {
1704                                         ERROR ("thread_info failed: %s",
1705                                                         mach_error_string (status));
1706                                         if (task_list[task] != port_task_self)
1707                                                 mach_port_deallocate (port_task_self,
1708                                                                 thread_list[thread]);
1709                                         continue; /* with next thread_list */
1710                                 }
1711
1712                                 if (ps != NULL)
1713                                         pse.num_lwp++;
1714
1715                                 switch (thread_data.run_state)
1716                                 {
1717                                         case TH_STATE_RUNNING:
1718                                                 running++;
1719                                                 break;
1720                                         case TH_STATE_STOPPED:
1721                                         /* What exactly is `halted'? */
1722                                         case TH_STATE_HALTED:
1723                                                 stopped++;
1724                                                 break;
1725                                         case TH_STATE_WAITING:
1726                                                 sleeping++;
1727                                                 break;
1728                                         case TH_STATE_UNINTERRUPTIBLE:
1729                                                 blocked++;
1730                                                 break;
1731                                         /* There is no `zombie' case here,
1732                                          * since there are no zombie-threads.
1733                                          * There's only zombie tasks, which are
1734                                          * handled above. */
1735                                         default:
1736                                                 WARNING ("Unknown thread status: %i",
1737                                                                 thread_data.run_state);
1738                                                 break;
1739                                 } /* switch (thread_data.run_state) */
1740
1741                                 if (task_list[task] != port_task_self)
1742                                 {
1743                                         status = mach_port_deallocate (port_task_self,
1744                                                         thread_list[thread]);
1745                                         if (status != KERN_SUCCESS)
1746                                                 ERROR ("mach_port_deallocate failed: %s",
1747                                                                 mach_error_string (status));
1748                                 }
1749                         } /* for (thread_list) */
1750
1751                         if ((status = vm_deallocate (port_task_self,
1752                                                         (vm_address_t) thread_list,
1753                                                         thread_list_len * sizeof (thread_act_t)))
1754                                         != KERN_SUCCESS)
1755                         {
1756                                 ERROR ("vm_deallocate failed: %s",
1757                                                 mach_error_string (status));
1758                         }
1759                         thread_list = NULL;
1760                         thread_list_len = 0;
1761
1762                         /* Only deallocate the task port, if it isn't our own.
1763                          * Don't know what would happen in that case, but this
1764                          * is what Apple's top does.. ;) */
1765                         if (task_list[task] != port_task_self)
1766                         {
1767                                 status = mach_port_deallocate (port_task_self,
1768                                                 task_list[task]);
1769                                 if (status != KERN_SUCCESS)
1770                                         ERROR ("mach_port_deallocate failed: %s",
1771                                                         mach_error_string (status));
1772                         }
1773
1774                         if (ps != NULL)
1775                                 /* FIXME: cmdline should be here instead of NULL */
1776                                 ps_list_add (task_name, NULL, &pse);
1777                 } /* for (task_list) */
1778
1779                 if ((status = vm_deallocate (port_task_self,
1780                                 (vm_address_t) task_list,
1781                                 task_list_len * sizeof (task_t))) != KERN_SUCCESS)
1782                 {
1783                         ERROR ("vm_deallocate failed: %s",
1784                                         mach_error_string (status));
1785                 }
1786                 task_list = NULL;
1787                 task_list_len = 0;
1788
1789                 if ((status = mach_port_deallocate (port_task_self, port_pset_priv))
1790                                 != KERN_SUCCESS)
1791                 {
1792                         ERROR ("mach_port_deallocate failed: %s",
1793                                         mach_error_string (status));
1794                 }
1795         } /* for (pset_list) */
1796
1797         ps_submit_state ("running", running);
1798         ps_submit_state ("sleeping", sleeping);
1799         ps_submit_state ("zombies", zombies);
1800         ps_submit_state ("stopped", stopped);
1801         ps_submit_state ("blocked", blocked);
1802
1803         for (ps = list_head_g; ps != NULL; ps = ps->next)
1804                 ps_submit_proc_list (ps);
1805 /* #endif HAVE_THREAD_INFO */
1806
1807 #elif KERNEL_LINUX
1808         int running  = 0;
1809         int sleeping = 0;
1810         int zombies  = 0;
1811         int stopped  = 0;
1812         int paging   = 0;
1813         int blocked  = 0;
1814
1815         struct dirent *ent;
1816         DIR           *proc;
1817         long           pid;
1818
1819         char cmdline[CMDLINE_BUFFER_SIZE];
1820
1821         int        status;
1822         procstat_t ps;
1823         procstat_entry_t pse;
1824         char       state;
1825
1826         procstat_t *ps_ptr;
1827
1828         running = sleeping = zombies = stopped = paging = blocked = 0;
1829         ps_list_reset ();
1830
1831         if ((proc = opendir ("/proc")) == NULL)
1832         {
1833                 char errbuf[1024];
1834                 ERROR ("Cannot open `/proc': %s",
1835                                 sstrerror (errno, errbuf, sizeof (errbuf)));
1836                 return (-1);
1837         }
1838
1839         while ((ent = readdir (proc)) != NULL)
1840         {
1841                 if (!isdigit (ent->d_name[0]))
1842                         continue;
1843
1844                 if ((pid = atol (ent->d_name)) < 1)
1845                         continue;
1846
1847                 status = ps_read_process (pid, &ps, &state);
1848                 if (status != 0)
1849                 {
1850                         DEBUG ("ps_read_process failed: %i", status);
1851                         continue;
1852                 }
1853
1854                 memset (&pse, 0, sizeof (pse));
1855                 pse.id       = pid;
1856                 pse.age      = 0;
1857
1858                 pse.num_proc   = ps.num_proc;
1859                 pse.num_lwp    = ps.num_lwp;
1860                 pse.vmem_size  = ps.vmem_size;
1861                 pse.vmem_rss   = ps.vmem_rss;
1862                 pse.vmem_data  = ps.vmem_data;
1863                 pse.vmem_code  = ps.vmem_code;
1864                 pse.stack_size = ps.stack_size;
1865
1866                 pse.vmem_minflt = 0;
1867                 pse.vmem_minflt_counter = ps.vmem_minflt_counter;
1868                 pse.vmem_majflt = 0;
1869                 pse.vmem_majflt_counter = ps.vmem_majflt_counter;
1870
1871                 pse.cpu_user = 0;
1872                 pse.cpu_user_counter = ps.cpu_user_counter;
1873                 pse.cpu_system = 0;
1874                 pse.cpu_system_counter = ps.cpu_system_counter;
1875
1876                 pse.io_rchar = ps.io_rchar;
1877                 pse.io_wchar = ps.io_wchar;
1878                 pse.io_syscr = ps.io_syscr;
1879                 pse.io_syscw = ps.io_syscw;
1880
1881                 pse.cswitch_vol = ps.cswitch_vol;
1882                 pse.cswitch_invol = ps.cswitch_invol;
1883
1884                 switch (state)
1885                 {
1886                         case 'R': running++;  break;
1887                         case 'S': sleeping++; break;
1888                         case 'D': blocked++;  break;
1889                         case 'Z': zombies++;  break;
1890                         case 'T': stopped++;  break;
1891                         case 'W': paging++;   break;
1892                 }
1893
1894                 ps_list_add (ps.name,
1895                                 ps_get_cmdline (pid, ps.name, cmdline, sizeof (cmdline)),
1896                                 &pse);
1897         }
1898
1899         closedir (proc);
1900
1901         ps_submit_state ("running",  running);
1902         ps_submit_state ("sleeping", sleeping);
1903         ps_submit_state ("zombies",  zombies);
1904         ps_submit_state ("stopped",  stopped);
1905         ps_submit_state ("paging",   paging);
1906         ps_submit_state ("blocked",  blocked);
1907
1908         for (ps_ptr = list_head_g; ps_ptr != NULL; ps_ptr = ps_ptr->next)
1909                 ps_submit_proc_list (ps_ptr);
1910
1911         read_fork_rate();
1912 /* #endif KERNEL_LINUX */
1913
1914 #elif HAVE_LIBKVM_GETPROCS && HAVE_STRUCT_KINFO_PROC_FREEBSD
1915         int running  = 0;
1916         int sleeping = 0;
1917         int zombies  = 0;
1918         int stopped  = 0;
1919         int blocked  = 0;
1920         int idle     = 0;
1921         int wait     = 0;
1922
1923         kvm_t *kd;
1924         char errbuf[_POSIX2_LINE_MAX];
1925         struct kinfo_proc *procs;          /* array of processes */
1926         struct kinfo_proc *proc_ptr = NULL;
1927         int count;                         /* returns number of processes */
1928         int i;
1929
1930         procstat_t *ps_ptr;
1931         procstat_entry_t pse;
1932
1933         ps_list_reset ();
1934
1935         /* Open the kvm interface, get a descriptor */
1936         kd = kvm_openfiles (NULL, "/dev/null", NULL, 0, errbuf);
1937         if (kd == NULL)
1938         {
1939                 ERROR ("processes plugin: Cannot open kvm interface: %s",
1940                                 errbuf);
1941                 return (0);
1942         }
1943
1944         /* Get the list of processes. */
1945         procs = kvm_getprocs(kd, KERN_PROC_ALL, 0, &count);
1946         if (procs == NULL)
1947         {
1948                 ERROR ("processes plugin: Cannot get kvm processes list: %s",
1949                                 kvm_geterr(kd));
1950                 kvm_close (kd);
1951                 return (0);
1952         }
1953
1954         /* Iterate through the processes in kinfo_proc */
1955         for (i = 0; i < count; i++)
1956         {
1957                 /* Create only one process list entry per _process_, i.e.
1958                  * filter out threads (duplicate PID entries). */
1959                 if ((proc_ptr == NULL) || (proc_ptr->ki_pid != procs[i].ki_pid))
1960                 {
1961                         char cmdline[CMDLINE_BUFFER_SIZE] = "";
1962                         _Bool have_cmdline = 0;
1963
1964                         proc_ptr = &(procs[i]);
1965                         /* Don't probe system processes and processes without arguments */
1966                         if (((procs[i].ki_flag & P_SYSTEM) == 0)
1967                                         && (procs[i].ki_args != NULL))
1968                         {
1969                                 char **argv;
1970                                 int argc;
1971                                 int status;
1972
1973                                 /* retrieve the arguments */
1974                                 argv = kvm_getargv (kd, proc_ptr, /* nchr = */ 0);
1975                                 argc = 0;
1976                                 if ((argv != NULL) && (argv[0] != NULL))
1977                                 {
1978                                         while (argv[argc] != NULL)
1979                                                 argc++;
1980
1981                                         status = strjoin (cmdline, sizeof (cmdline), argv, argc, " ");
1982                                         if (status < 0)
1983                                                 WARNING ("processes plugin: Command line did not fit into buffer.");
1984                                         else
1985                                                 have_cmdline = 1;
1986                                 }
1987                         } /* if (process has argument list) */
1988
1989                         pse.id       = procs[i].ki_pid;
1990                         pse.age      = 0;
1991
1992                         pse.num_proc = 1;
1993                         pse.num_lwp  = procs[i].ki_numthreads;
1994
1995                         pse.vmem_size = procs[i].ki_size;
1996                         pse.vmem_rss = procs[i].ki_rssize * pagesize;
1997                         pse.vmem_data = procs[i].ki_dsize * pagesize;
1998                         pse.vmem_code = procs[i].ki_tsize * pagesize;
1999                         pse.stack_size = procs[i].ki_ssize * pagesize;
2000                         pse.vmem_minflt = 0;
2001                         pse.vmem_minflt_counter = procs[i].ki_rusage.ru_minflt;
2002                         pse.vmem_majflt = 0;
2003                         pse.vmem_majflt_counter = procs[i].ki_rusage.ru_majflt;
2004
2005                         pse.cpu_user = 0;
2006                         pse.cpu_system = 0;
2007                         pse.cpu_user_counter = 0;
2008                         pse.cpu_system_counter = 0;
2009                         /*
2010                          * The u-area might be swapped out, and we can't get
2011                          * at it because we have a crashdump and no swap.
2012                          * If it's here fill in these fields, otherwise, just
2013                          * leave them 0.
2014                          */
2015                         if (procs[i].ki_flag & P_INMEM)
2016                         {
2017                                 pse.cpu_user_counter = procs[i].ki_rusage.ru_utime.tv_usec
2018                                         + (1000000lu * procs[i].ki_rusage.ru_utime.tv_sec);
2019                                 pse.cpu_system_counter = procs[i].ki_rusage.ru_stime.tv_usec
2020                                         + (1000000lu * procs[i].ki_rusage.ru_stime.tv_sec);
2021                         }
2022
2023                         /* no I/O data */
2024                         pse.io_rchar = -1;
2025                         pse.io_wchar = -1;
2026                         pse.io_syscr = -1;
2027                         pse.io_syscw = -1;
2028
2029                         /* context switch counters not implemented */
2030                         pse.cswitch_vol   = -1;
2031                         pse.cswitch_invol = -1;
2032
2033                         ps_list_add (procs[i].ki_comm, have_cmdline ? cmdline : NULL, &pse);
2034
2035                         switch (procs[i].ki_stat)
2036                         {
2037                                 case SSTOP:     stopped++;      break;
2038                                 case SSLEEP:    sleeping++;     break;
2039                                 case SRUN:      running++;      break;
2040                                 case SIDL:      idle++;         break;
2041                                 case SWAIT:     wait++;         break;
2042                                 case SLOCK:     blocked++;      break;
2043                                 case SZOMB:     zombies++;      break;
2044                         }
2045                 } /* if ((proc_ptr == NULL) || (proc_ptr->ki_pid != procs[i].ki_pid)) */
2046         }
2047
2048         kvm_close(kd);
2049
2050         ps_submit_state ("running",  running);
2051         ps_submit_state ("sleeping", sleeping);
2052         ps_submit_state ("zombies",  zombies);
2053         ps_submit_state ("stopped",  stopped);
2054         ps_submit_state ("blocked",  blocked);
2055         ps_submit_state ("idle",     idle);
2056         ps_submit_state ("wait",     wait);
2057
2058         for (ps_ptr = list_head_g; ps_ptr != NULL; ps_ptr = ps_ptr->next)
2059                 ps_submit_proc_list (ps_ptr);
2060 /* #endif HAVE_LIBKVM_GETPROCS && HAVE_STRUCT_KINFO_PROC_FREEBSD */
2061
2062 #elif HAVE_LIBKVM_GETPROCS && HAVE_STRUCT_KINFO_PROC_OPENBSD
2063         int running  = 0;
2064         int sleeping = 0;
2065         int zombies  = 0;
2066         int stopped  = 0;
2067         int onproc   = 0;
2068         int idle     = 0;
2069         int dead     = 0;
2070
2071         kvm_t *kd;
2072         char errbuf[1024];
2073         struct kinfo_proc *procs;          /* array of processes */
2074         struct kinfo_proc *proc_ptr = NULL;
2075         int count;                         /* returns number of processes */
2076         int i;
2077
2078         procstat_t *ps_ptr;
2079         procstat_entry_t pse;
2080
2081         ps_list_reset ();
2082
2083         /* Open the kvm interface, get a descriptor */
2084         kd = kvm_open (NULL, NULL, NULL, 0, errbuf);
2085         if (kd == NULL)
2086         {
2087                 ERROR ("processes plugin: Cannot open kvm interface: %s",
2088                                 errbuf);
2089                 return (0);
2090         }
2091
2092         /* Get the list of processes. */
2093         procs = kvm_getprocs(kd, KERN_PROC_ALL, 0, sizeof(struct kinfo_proc), &count);
2094         if (procs == NULL)
2095         {
2096                 ERROR ("processes plugin: Cannot get kvm processes list: %s",
2097                                 kvm_geterr(kd));
2098                 kvm_close (kd);
2099                 return (0);
2100         }
2101
2102         /* Iterate through the processes in kinfo_proc */
2103         for (i = 0; i < count; i++)
2104         {
2105                 /* Create only one process list entry per _process_, i.e.
2106                  * filter out threads (duplicate PID entries). */
2107                 if ((proc_ptr == NULL) || (proc_ptr->p_pid != procs[i].p_pid))
2108                 {
2109                         char cmdline[CMDLINE_BUFFER_SIZE] = "";
2110                         _Bool have_cmdline = 0;
2111
2112                         proc_ptr = &(procs[i]);
2113                         /* Don't probe zombie processes  */
2114                         if (!P_ZOMBIE(proc_ptr))
2115                         {
2116                                 char **argv;
2117                                 int argc;
2118                                 int status;
2119
2120                                 /* retrieve the arguments */
2121                                 argv = kvm_getargv (kd, proc_ptr, /* nchr = */ 0);
2122                                 argc = 0;
2123                                 if ((argv != NULL) && (argv[0] != NULL))
2124                                 {
2125                                         while (argv[argc] != NULL)
2126                                                 argc++;
2127
2128                                         status = strjoin (cmdline, sizeof (cmdline), argv, argc, " ");
2129                                         if (status < 0)
2130                                                 WARNING ("processes plugin: Command line did not fit into buffer.");
2131                                         else
2132                                                 have_cmdline = 1;
2133                                 }
2134                         } /* if (process has argument list) */
2135
2136                         memset (&pse, 0, sizeof (pse));
2137                         pse.id       = procs[i].p_pid;
2138                         pse.age      = 0;
2139
2140                         pse.num_proc = 1;
2141                         pse.num_lwp  = 1; /* XXX: accumulate p_tid values for a single p_pid ? */
2142
2143                         pse.vmem_rss = procs[i].p_vm_rssize * pagesize;
2144                         pse.vmem_data = procs[i].p_vm_dsize * pagesize;
2145                         pse.vmem_code = procs[i].p_vm_tsize * pagesize;
2146                         pse.stack_size = procs[i].p_vm_ssize * pagesize;
2147                         pse.vmem_size = pse.stack_size + pse.vmem_code + pse.vmem_data;
2148                         pse.vmem_minflt = 0;
2149                         pse.vmem_minflt_counter = procs[i].p_uru_minflt;
2150                         pse.vmem_majflt = 0;
2151                         pse.vmem_majflt_counter = procs[i].p_uru_majflt;
2152
2153                         pse.cpu_user = 0;
2154                         pse.cpu_system = 0;
2155                         pse.cpu_user_counter = procs[i].p_uutime_usec +
2156                                                 (1000000lu * procs[i].p_uutime_sec);
2157                         pse.cpu_system_counter = procs[i].p_ustime_usec +
2158                                                 (1000000lu * procs[i].p_ustime_sec);
2159
2160                         /* no I/O data */
2161                         pse.io_rchar = -1;
2162                         pse.io_wchar = -1;
2163                         pse.io_syscr = -1;
2164                         pse.io_syscw = -1;
2165
2166                         /* context switch counters not implemented */
2167                         pse.cswitch_vol   = -1;
2168                         pse.cswitch_invol = -1;
2169
2170                         ps_list_add (procs[i].p_comm, have_cmdline ? cmdline : NULL, &pse);
2171
2172                         switch (procs[i].p_stat)
2173                         {
2174                                 case SSTOP:     stopped++;      break;
2175                                 case SSLEEP:    sleeping++;     break;
2176                                 case SRUN:      running++;      break;
2177                                 case SIDL:      idle++;         break;
2178                                 case SONPROC:   onproc++;       break;
2179                                 case SDEAD:     dead++;         break;
2180                                 case SZOMB:     zombies++;      break;
2181                         }
2182                 } /* if ((proc_ptr == NULL) || (proc_ptr->p_pid != procs[i].p_pid)) */
2183         }
2184
2185         kvm_close(kd);
2186
2187         ps_submit_state ("running",  running);
2188         ps_submit_state ("sleeping", sleeping);
2189         ps_submit_state ("zombies",  zombies);
2190         ps_submit_state ("stopped",  stopped);
2191         ps_submit_state ("onproc",   onproc);
2192         ps_submit_state ("idle",     idle);
2193         ps_submit_state ("dead",     dead);
2194
2195         for (ps_ptr = list_head_g; ps_ptr != NULL; ps_ptr = ps_ptr->next)
2196                 ps_submit_proc_list (ps_ptr);
2197 /* #endif HAVE_LIBKVM_GETPROCS && HAVE_STRUCT_KINFO_PROC_OPENBSD */
2198
2199 #elif HAVE_PROCINFO_H
2200         /* AIX */
2201         int running  = 0;
2202         int sleeping = 0;
2203         int zombies  = 0;
2204         int stopped  = 0;
2205         int paging   = 0;
2206         int blocked  = 0;
2207
2208         pid_t pindex = 0;
2209         int nprocs;
2210
2211         procstat_t *ps;
2212         procstat_entry_t pse;
2213
2214         ps_list_reset ();
2215         while ((nprocs = getprocs64 (procentry, sizeof(struct procentry64),
2216                                         /* fdsinfo = */ NULL, sizeof(struct fdsinfo64),
2217                                         &pindex, MAXPROCENTRY)) > 0)
2218         {
2219                 int i;
2220
2221                 for (i = 0; i < nprocs; i++)
2222                 {
2223                         tid64_t thindex;
2224                         int nthreads;
2225                         char arglist[MAXARGLN+1];
2226                         char *cargs;
2227                         char *cmdline;
2228
2229                         if (procentry[i].pi_state == SNONE) continue;
2230                         /* if (procentry[i].pi_state == SZOMB)  FIXME */
2231
2232                         cmdline = procentry[i].pi_comm;
2233                         cargs = procentry[i].pi_comm;
2234                         if ( procentry[i].pi_flags & SKPROC )
2235                         {
2236                                 if (procentry[i].pi_pid == 0)
2237                                         cmdline = "swapper";
2238                                 cargs = cmdline;
2239                         }
2240                         else
2241                         {
2242                                 if (getargs(&procentry[i], sizeof(struct procentry64), arglist, MAXARGLN) >= 0)
2243                                 {
2244                                         int n;
2245
2246                                         n = -1;
2247                                         while (++n < MAXARGLN)
2248                                         {
2249                                                 if (arglist[n] == '\0')
2250                                                 {
2251                                                         if (arglist[n+1] == '\0')
2252                                                                 break;
2253                                                         arglist[n] = ' ';
2254                                                 }
2255                                         }
2256                                         cargs = arglist;
2257                                 }
2258                         }
2259
2260                         pse.id       = procentry[i].pi_pid;
2261                         pse.age      = 0;
2262                         pse.num_lwp  = procentry[i].pi_thcount;
2263                         pse.num_proc = 1;
2264
2265                         thindex=0;
2266                         while ((nthreads = getthrds64(procentry[i].pi_pid,
2267                                                         thrdentry, sizeof(struct thrdentry64),
2268                                                         &thindex, MAXTHRDENTRY)) > 0)
2269                         {
2270                                 int j;
2271
2272                                 for (j=0; j< nthreads; j++)
2273                                 {
2274                                         switch (thrdentry[j].ti_state)
2275                                         {
2276                                                 /* case TSNONE: break; */
2277                                                 case TSIDL:     blocked++;      break; /* FIXME is really blocked */
2278                                                 case TSRUN:     running++;      break;
2279                                                 case TSSLEEP:   sleeping++;     break;
2280                                                 case TSSWAP:    paging++;       break;
2281                                                 case TSSTOP:    stopped++;      break;
2282                                                 case TSZOMB:    zombies++;      break;
2283                                         }
2284                                 }
2285                                 if (nthreads < MAXTHRDENTRY)
2286                                         break;
2287                         }
2288
2289                         pse.cpu_user = 0;
2290                         /* tv_usec is nanosec ??? */
2291                         pse.cpu_user_counter = procentry[i].pi_ru.ru_utime.tv_sec * 1000000 +
2292                                 procentry[i].pi_ru.ru_utime.tv_usec / 1000;
2293
2294                         pse.cpu_system = 0;
2295                         /* tv_usec is nanosec ??? */
2296                         pse.cpu_system_counter = procentry[i].pi_ru.ru_stime.tv_sec * 1000000 +
2297                                 procentry[i].pi_ru.ru_stime.tv_usec / 1000;
2298
2299                         pse.vmem_minflt = 0;
2300                         pse.vmem_minflt_counter = procentry[i].pi_minflt;
2301                         pse.vmem_majflt = 0;
2302                         pse.vmem_majflt_counter = procentry[i].pi_majflt;
2303
2304                         pse.vmem_size = procentry[i].pi_tsize + procentry[i].pi_dvm * pagesize;
2305                         pse.vmem_rss = (procentry[i].pi_drss + procentry[i].pi_trss) * pagesize;
2306                         /* Not supported */
2307                         pse.vmem_data = 0;
2308                         pse.vmem_code = 0;
2309                         pse.stack_size =  0;
2310
2311                         pse.io_rchar = -1;
2312                         pse.io_wchar = -1;
2313                         pse.io_syscr = -1;
2314                         pse.io_syscw = -1;
2315
2316                         pse.cswitch_vol   = -1;
2317                         pse.cswitch_invol = -1;
2318
2319                         ps_list_add (cmdline, cargs, &pse);
2320                 } /* for (i = 0 .. nprocs) */
2321
2322                 if (nprocs < MAXPROCENTRY)
2323                         break;
2324         } /* while (getprocs64() > 0) */
2325         ps_submit_state ("running",  running);
2326         ps_submit_state ("sleeping", sleeping);
2327         ps_submit_state ("zombies",  zombies);
2328         ps_submit_state ("stopped",  stopped);
2329         ps_submit_state ("paging",   paging);
2330         ps_submit_state ("blocked",  blocked);
2331
2332         for (ps = list_head_g; ps != NULL; ps = ps->next)
2333                 ps_submit_proc_list (ps);
2334 /* #endif HAVE_PROCINFO_H */
2335
2336 #elif KERNEL_SOLARIS
2337         /*
2338          * The Solaris section adds a few more process states and removes some
2339          * process states compared to linux. Most notably there is no "PAGING"
2340          * and "BLOCKED" state for a process.  The rest is similar to the linux
2341          * code.
2342          */
2343         int running = 0;
2344         int sleeping = 0;
2345         int zombies = 0;
2346         int stopped = 0;
2347         int detached = 0;
2348         int daemon = 0;
2349         int system = 0;
2350         int orphan = 0;
2351
2352         struct dirent *ent;
2353         DIR *proc;
2354
2355         int status;
2356         procstat_t *ps_ptr;
2357         char state;
2358
2359         char cmdline[PRARGSZ];
2360
2361         ps_list_reset ();
2362
2363         proc = opendir ("/proc");
2364         if (proc == NULL)
2365                 return (-1);
2366
2367         while ((ent = readdir(proc)) != NULL)
2368         {
2369                 long pid;
2370                 struct procstat ps;
2371                 procstat_entry_t pse;
2372                 char *endptr;
2373
2374                 if (!isdigit ((int) ent->d_name[0]))
2375                         continue;
2376
2377                 pid = strtol (ent->d_name, &endptr, 10);
2378                 if (*endptr != 0) /* value didn't completely parse as a number */
2379                         continue;
2380
2381                 status = ps_read_process (pid, &ps, &state);
2382                 if (status != 0)
2383                 {
2384                         DEBUG("ps_read_process failed: %i", status);
2385                         continue;
2386                 }
2387
2388                 memset (&pse, 0, sizeof (pse));
2389                 pse.id = pid;
2390                 pse.age = 0;
2391
2392                 pse.num_proc   = ps.num_proc;
2393                 pse.num_lwp    = ps.num_lwp;
2394                 pse.vmem_size  = ps.vmem_size;
2395                 pse.vmem_rss   = ps.vmem_rss;
2396                 pse.vmem_data  = ps.vmem_data;
2397                 pse.vmem_code  = ps.vmem_code;
2398                 pse.stack_size = ps.stack_size;
2399
2400                 pse.vmem_minflt = 0;
2401                 pse.vmem_minflt_counter = ps.vmem_minflt_counter;
2402                 pse.vmem_majflt = 0;
2403                 pse.vmem_majflt_counter = ps.vmem_majflt_counter;
2404
2405                 pse.cpu_user = 0;
2406                 pse.cpu_user_counter = ps.cpu_user_counter;
2407                 pse.cpu_system = 0;
2408                 pse.cpu_system_counter = ps.cpu_system_counter;
2409
2410                 pse.io_rchar = ps.io_rchar;
2411                 pse.io_wchar = ps.io_wchar;
2412                 pse.io_syscr = ps.io_syscr;
2413                 pse.io_syscw = ps.io_syscw;
2414
2415                 pse.cswitch_vol = -1;
2416                 pse.cswitch_invol = -1;
2417
2418                 switch (state)
2419                 {
2420                         case 'R': running++;  break;
2421                         case 'S': sleeping++; break;
2422                         case 'E': detached++; break;
2423                         case 'Z': zombies++;  break;
2424                         case 'T': stopped++;  break;
2425                         case 'A': daemon++;   break;
2426                         case 'Y': system++;   break;
2427                         case 'O': orphan++;   break;
2428                 }
2429
2430
2431                 ps_list_add (ps.name,
2432                                 ps_get_cmdline (pid, ps.name, cmdline, sizeof (cmdline)),
2433                                 &pse);
2434         } /* while(readdir) */
2435         closedir (proc);
2436
2437         ps_submit_state ("running",  running);
2438         ps_submit_state ("sleeping", sleeping);
2439         ps_submit_state ("zombies",  zombies);
2440         ps_submit_state ("stopped",  stopped);
2441         ps_submit_state ("detached", detached);
2442         ps_submit_state ("daemon",   daemon);
2443         ps_submit_state ("system",   system);
2444         ps_submit_state ("orphan",   orphan);
2445
2446         for (ps_ptr = list_head_g; ps_ptr != NULL; ps_ptr = ps_ptr->next)
2447                 ps_submit_proc_list (ps_ptr);
2448
2449         read_fork_rate();
2450 #endif /* KERNEL_SOLARIS */
2451
2452         return (0);
2453 } /* int ps_read */
2454
2455 void module_register (void)
2456 {
2457         plugin_register_complex_config ("processes", ps_config);
2458         plugin_register_init ("processes", ps_init);
2459         plugin_register_read ("processes", ps_read);
2460 } /* void module_register */