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
 134 #ifndef MAXCOMLEN
 135 #  define MAXCOMLEN 16
 136 #endif
 137
 138 /* #endif KERNEL_SOLARIS */
 139
 140 #else
 141 # error "No applicable input method."
 142 #endif
 143
 144 #if HAVE_REGEX_H
 145 # include <regex.h>
 146 #endif
 147
 148 #if HAVE_KSTAT_H
 149 # include <kstat.h>
 150 #endif
 151
 152 #ifndef CMDLINE_BUFFER_SIZE
 153 # if defined(ARG_MAX) && (ARG_MAX < 4096)
 154 #  define CMDLINE_BUFFER_SIZE ARG_MAX
 155 # else
 156 #  define CMDLINE_BUFFER_SIZE 4096
 157 # endif
 158 #endif
 159
 160 typedef struct procstat_entry_s
 161 {
 162         unsigned long id;
 163         unsigned long age;
 164
 165         unsigned long num_proc;
 166         unsigned long num_lwp;
 167         unsigned long vmem_size;
 168         unsigned long vmem_rss;
 169         unsigned long vmem_data;
 170         unsigned long vmem_code;
 171         unsigned long stack_size;
 172
 173         unsigned long vmem_minflt;
 174         unsigned long vmem_majflt;
 175         derive_t      vmem_minflt_counter;
 176         derive_t      vmem_majflt_counter;
 177
 178         unsigned long cpu_user;
 179         unsigned long cpu_system;
 180         derive_t      cpu_user_counter;
 181         derive_t      cpu_system_counter;
 182
 183         /* io data */
 184         derive_t io_rchar;
 185         derive_t io_wchar;
 186         derive_t io_syscr;
 187         derive_t io_syscw;
 188
 189         derive_t cswitch_vol;
 190         derive_t cswitch_invol;
 191
 192         struct procstat_entry_s *next;
 193 } procstat_entry_t;
 194
 195 #define PROCSTAT_NAME_LEN 256
 196 typedef struct procstat
 197 {
 198         char          name[PROCSTAT_NAME_LEN];
 199 #if HAVE_REGEX_H
 200         regex_t *re;
 201 #endif
 202
 203         unsigned long num_proc;
 204         unsigned long num_lwp;
 205         unsigned long vmem_size;
 206         unsigned long vmem_rss;
 207         unsigned long vmem_data;
 208         unsigned long vmem_code;
 209         unsigned long stack_size;
 210
 211         derive_t vmem_minflt_counter;
 212         derive_t vmem_majflt_counter;
 213
 214         derive_t cpu_user_counter;
 215         derive_t cpu_system_counter;
 216
 217         /* io data */
 218         derive_t io_rchar;
 219         derive_t io_wchar;
 220         derive_t io_syscr;
 221         derive_t io_syscw;
 222
 223         derive_t cswitch_vol;
 224         derive_t cswitch_invol;
 225
 226         struct procstat   *next;
 227         struct procstat_entry_s *instances;
 228 } procstat_t;
 229
 230 static procstat_t *list_head_g = NULL;
 231
 232 static _Bool report_ctx_switch = 0;
 233
 234 #if HAVE_THREAD_INFO
 235 static mach_port_t port_host_self;
 236 static mach_port_t port_task_self;
 237
 238 static processor_set_name_array_t pset_list;
 239 static mach_msg_type_number_t     pset_list_len;
 240 /* #endif HAVE_THREAD_INFO */
 241
 242 #elif KERNEL_LINUX
 243 static long pagesize_g;
 244 /* #endif KERNEL_LINUX */
 245
 246 #elif HAVE_LIBKVM_GETPROCS && (HAVE_STRUCT_KINFO_PROC_FREEBSD || HAVE_STRUCT_KINFO_PROC_OPENBSD)
 247 static int pagesize;
 248 /* #endif HAVE_LIBKVM_GETPROCS && (HAVE_STRUCT_KINFO_PROC_FREEBSD || HAVE_STRUCT_KINFO_PROC_OPENBSD) */
 249
 250 #elif HAVE_PROCINFO_H
 251 static  struct procentry64 procentry[MAXPROCENTRY];
 252 static  struct thrdentry64 thrdentry[MAXTHRDENTRY];
 253 static int pagesize;
 254
 255 #ifndef _AIXVERSION_610
 256 int     getprocs64 (void *procsinfo, int sizproc, void *fdsinfo, int sizfd, pid_t *index, int count);
 257 int     getthrds64( pid_t, void *, int, tid64_t *, int );
 258 #endif
 259 int getargs (void *processBuffer, int bufferLen, char *argsBuffer, int argsLen);
 260 #endif /* HAVE_PROCINFO_H */
 261
 262 /* put name of process from config to list_head_g tree
 263  * list_head_g is a list of 'procstat_t' structs with
 264  * processes names we want to watch */
 265 static void ps_list_register (const char *name, const char *regexp)
 266 {
 267         procstat_t *new;
 268         procstat_t *ptr;
 269         int status;
 270
 271         new = calloc (1, sizeof (*new));
 272         if (new == NULL)
 273         {
 274                 ERROR ("processes plugin: ps_list_register: calloc failed.");
 275                 return;
 276         }
 277         sstrncpy (new->name, name, sizeof (new->name));
 278
 279 #if HAVE_REGEX_H
 280         if (regexp != NULL)
 281         {
 282                 DEBUG ("ProcessMatch: adding \"%s\" as criteria to process %s.", regexp, name);
 283                 new->re = malloc (sizeof (*new->re));
 284                 if (new->re == NULL)
 285                 {
 286                         ERROR ("processes plugin: ps_list_register: malloc failed.");
 287                         sfree (new);
 288                         return;
 289                 }
 290
 291                 status = regcomp (new->re, regexp, REG_EXTENDED | REG_NOSUB);
 292                 if (status != 0)
 293                 {
 294                         DEBUG ("ProcessMatch: compiling the regular expression \"%s\" failed.", regexp);
 295                         sfree (new->re);
 296                         sfree (new);
 297                         return;
 298                 }
 299         }
 300 #else
 301         if (regexp != NULL)
 302         {
 303                 ERROR ("processes plugin: ps_list_register: "
 304                                 "Regular expression \"%s\" found in config "
 305                                 "file, but support for regular expressions "
 306                                 "has been disabled at compile time.",
 307                                 regexp);
 308                 sfree (new);
 309                 return;
 310         }
 311 #endif
 312
 313         for (ptr = list_head_g; ptr != NULL; ptr = ptr->next)
 314         {
 315                 if (strcmp (ptr->name, name) == 0)
 316                 {
 317                         WARNING ("processes plugin: You have configured more "
 318                                         "than one `Process' or "
 319                                         "`ProcessMatch' with the same name. "
 320                                         "All but the first setting will be "
 321                                         "ignored.");
 322 #if HAVE_REGEX_H
 323                         sfree (new->re);
 324 #endif
 325                         sfree (new);
 326                         return;
 327                 }
 328
 329                 if (ptr->next == NULL)
 330                         break;
 331         }
 332
 333         if (ptr == NULL)
 334                 list_head_g = new;
 335         else
 336                 ptr->next = new;
 337 } /* void ps_list_register */
 338
 339 /* try to match name against entry, returns 1 if success */
 340 static int ps_list_match (const char *name, const char *cmdline, procstat_t *ps)
 341 {
 342 #if HAVE_REGEX_H
 343         if (ps->re != NULL)
 344         {
 345                 int status;
 346                 const char *str;
 347
 348                 str = cmdline;
 349                 if ((str == NULL) || (str[0] == 0))
 350                         str = name;
 351
 352                 assert (str != NULL);
 353
 354                 status = regexec (ps->re, str,
 355                                 /* nmatch = */ 0,
 356                                 /* pmatch = */ NULL,
 357                                 /* eflags = */ 0);
 358                 if (status == 0)
 359                         return (1);
 360         }
 361         else
 362 #endif
 363         if (strcmp (ps->name, name) == 0)
 364                 return (1);
 365
 366         return (0);
 367 } /* int ps_list_match */
 368
 369 static void ps_update_counter (_Bool init, derive_t *group_counter,
 370                                 derive_t *curr_counter, unsigned long *curr_value,
 371                                 derive_t new_counter, unsigned long new_value)
 372 {
 373         if (init)
 374         {
 375                 *curr_value = new_value;
 376                 *curr_counter += new_value;
 377                 *group_counter += new_value;
 378                 return;
 379         }
 380
 381         if (new_counter < *curr_counter)
 382                 *curr_value = new_counter + (ULONG_MAX - *curr_counter);
 383         else
 384                 *curr_value = new_counter - *curr_counter;
 385
 386         *curr_counter = new_counter;
 387         *group_counter += *curr_value;
 388 }
 389
 390 /* add process entry to 'instances' of process 'name' (or refresh it) */
 391 static void ps_list_add (const char *name, const char *cmdline, procstat_entry_t *entry)
 392 {
 393         procstat_t *ps;
 394         procstat_entry_t *pse;
 395
 396         if (entry->id == 0)
 397                 return;
 398
 399         for (ps = list_head_g; ps != NULL; ps = ps->next)
 400         {
 401                 _Bool want_init;
 402
 403                 if ((ps_list_match (name, cmdline, ps)) == 0)
 404                         continue;
 405
 406                 for (pse = ps->instances; pse != NULL; pse = pse->next)
 407                         if ((pse->id == entry->id) || (pse->next == NULL))
 408                                 break;
 409
 410                 if ((pse == NULL) || (pse->id != entry->id))
 411                 {
 412                         procstat_entry_t *new;
 413
 414                         new = calloc (1, sizeof (*new));
 415                         if (new == NULL)
 416                                 return;
 417                         new->id = entry->id;
 418
 419                         if (pse == NULL)
 420                                 ps->instances = new;
 421                         else
 422                                 pse->next = new;
 423
 424                         pse = new;
 425                 }
 426
 427                 pse->age = 0;
 428                 pse->num_proc   = entry->num_proc;
 429                 pse->num_lwp    = entry->num_lwp;
 430                 pse->vmem_size  = entry->vmem_size;
 431                 pse->vmem_rss   = entry->vmem_rss;
 432                 pse->vmem_data  = entry->vmem_data;
 433                 pse->vmem_code  = entry->vmem_code;
 434                 pse->stack_size = entry->stack_size;
 435                 pse->io_rchar   = entry->io_rchar;
 436                 pse->io_wchar   = entry->io_wchar;
 437                 pse->io_syscr   = entry->io_syscr;
 438                 pse->io_syscw   = entry->io_syscw;
 439                 pse->cswitch_vol   = entry->cswitch_vol;
 440                 pse->cswitch_invol = entry->cswitch_invol;
 441
 442                 ps->num_proc   += pse->num_proc;
 443                 ps->num_lwp    += pse->num_lwp;
 444                 ps->vmem_size  += pse->vmem_size;
 445                 ps->vmem_rss   += pse->vmem_rss;
 446                 ps->vmem_data  += pse->vmem_data;
 447                 ps->vmem_code  += pse->vmem_code;
 448                 ps->stack_size += pse->stack_size;
 449
 450                 ps->io_rchar   += ((pse->io_rchar == -1)?0:pse->io_rchar);
 451                 ps->io_wchar   += ((pse->io_wchar == -1)?0:pse->io_wchar);
 452                 ps->io_syscr   += ((pse->io_syscr == -1)?0:pse->io_syscr);
 453                 ps->io_syscw   += ((pse->io_syscw == -1)?0:pse->io_syscw);
 454
 455                 ps->cswitch_vol   += ((pse->cswitch_vol == -1)?0:pse->cswitch_vol);
 456                 ps->cswitch_invol += ((pse->cswitch_invol == -1)?0:pse->cswitch_invol);
 457
 458                 want_init = (entry->vmem_minflt_counter == 0)
 459                                 && (entry->vmem_majflt_counter == 0);
 460                 ps_update_counter (want_init,
 461                                 &ps->vmem_minflt_counter,
 462                                 &pse->vmem_minflt_counter, &pse->vmem_minflt,
 463                                 entry->vmem_minflt_counter, entry->vmem_minflt);
 464                 ps_update_counter (want_init,
 465                                 &ps->vmem_majflt_counter,
 466                                 &pse->vmem_majflt_counter, &pse->vmem_majflt,
 467                                 entry->vmem_majflt_counter, entry->vmem_majflt);
 468
 469                 want_init = (entry->cpu_user_counter == 0)
 470                                 && (entry->cpu_system_counter == 0);
 471                 ps_update_counter (want_init,
 472                                 &ps->cpu_user_counter,
 473                                 &pse->cpu_user_counter, &pse->cpu_user,
 474                                 entry->cpu_user_counter, entry->cpu_user);
 475                 ps_update_counter (want_init,
 476                                 &ps->cpu_system_counter,
 477                                 &pse->cpu_system_counter, &pse->cpu_system,
 478                                 entry->cpu_system_counter, entry->cpu_system);
 479         }
 480 }
 481
 482 /* remove old entries from instances of processes in list_head_g */
 483 static void ps_list_reset (void)
 484 {
 485         procstat_t *ps;
 486         procstat_entry_t *pse;
 487         procstat_entry_t *pse_prev;
 488
 489         for (ps = list_head_g; ps != NULL; ps = ps->next)
 490         {
 491                 ps->num_proc    = 0;
 492                 ps->num_lwp     = 0;
 493                 ps->vmem_size   = 0;
 494                 ps->vmem_rss    = 0;
 495                 ps->vmem_data   = 0;
 496                 ps->vmem_code   = 0;
 497                 ps->stack_size  = 0;
 498                 ps->io_rchar = -1;
 499                 ps->io_wchar = -1;
 500                 ps->io_syscr = -1;
 501                 ps->io_syscw = -1;
 502                 ps->cswitch_vol   = -1;
 503                 ps->cswitch_invol = -1;
 504
 505                 pse_prev = NULL;
 506                 pse = ps->instances;
 507                 while (pse != NULL)
 508                 {
 509                         if (pse->age > 10)
 510                         {
 511                                 DEBUG ("Removing this procstat entry cause it's too old: "
 512                                                 "id = %lu; name = %s;",
 513                                                 pse->id, ps->name);
 514
 515                                 if (pse_prev == NULL)
 516                                 {
 517                                         ps->instances = pse->next;
 518                                         free (pse);
 519                                         pse = ps->instances;
 520                                 }
 521                                 else
 522                                 {
 523                                         pse_prev->next = pse->next;
 524                                         free (pse);
 525                                         pse = pse_prev->next;
 526                                 }
 527                         }
 528                         else
 529                         {
 530                                 pse->age++;
 531                                 pse_prev = pse;
 532                                 pse = pse->next;
 533                         }
 534                 } /* while (pse != NULL) */
 535         } /* for (ps = list_head_g; ps != NULL; ps = ps->next) */
 536 }
 537
 538 /* put all pre-defined 'Process' names from config to list_head_g tree */
 539 static int ps_config (oconfig_item_t *ci)
 540 {
 541         int i;
 542
 543 #if KERNEL_LINUX
 544         const size_t max_procname_len = 15;
 545 #elif KERNEL_SOLARIS || KERNEL_FREEBSD
 546         const size_t max_procname_len = MAXCOMLEN -1;
 547 #endif
 548
 549         for (i = 0; i < ci->children_num; ++i) {
 550                 oconfig_item_t *c = ci->children + i;
 551
 552                 if (strcasecmp (c->key, "Process") == 0)
 553                 {
 554                         if ((c->values_num != 1)
 555                                         || (OCONFIG_TYPE_STRING != c->values[0].type)) {
 556                                 ERROR ("processes plugin: `Process' expects exactly "
 557                                                 "one string argument (got %i).",
 558                                                 c->values_num);
 559                                 continue;
 560                         }
 561
 562                         if (c->children_num != 0) {
 563                                 WARNING ("processes plugin: the `Process' config option "
 564                                                 "does not expect any child elements -- ignoring "
 565                                                 "content (%i elements) of the <Process '%s'> block.",
 566                                                 c->children_num, c->values[0].value.string);
 567                         }
 568
 569 #if KERNEL_LINUX || KERNEL_SOLARIS || KERNEL_FREEBSD
 570                         if (strlen (c->values[0].value.string) > max_procname_len) {
 571                                 WARNING ("processes plugin: this platform has a %zu character limit "
 572                                                 "to process names. The `Process \"%s\"' option will "
 573                                                 "not work as expected.",
 574                                                 max_procname_len, c->values[0].value.string);
 575                         }
 576 #endif
 577
 578                         ps_list_register (c->values[0].value.string, NULL);
 579                 }
 580                 else if (strcasecmp (c->key, "ProcessMatch") == 0)
 581                 {
 582                         if ((c->values_num != 2)
 583                                         || (OCONFIG_TYPE_STRING != c->values[0].type)
 584                                         || (OCONFIG_TYPE_STRING != c->values[1].type))
 585                         {
 586                                 ERROR ("processes plugin: `ProcessMatch' needs exactly "
 587                                                 "two string arguments (got %i).",
 588                                                 c->values_num);
 589                                 continue;
 590                         }
 591
 592                         if (c->children_num != 0) {
 593                                 WARNING ("processes plugin: the `ProcessMatch' config option "
 594                                                 "does not expect any child elements -- ignoring "
 595                                                 "content (%i elements) of the <ProcessMatch '%s' '%s'> "
 596                                                 "block.", c->children_num, c->values[0].value.string,
 597                                                 c->values[1].value.string);
 598                         }
 599
 600                         ps_list_register (c->values[0].value.string,
 601                                         c->values[1].value.string);
 602                 }
 603                 else if (strcasecmp (c->key, "CollectContextSwitch") == 0)
 604                 {
 605                         cf_util_get_boolean (c, &report_ctx_switch);
 606                 }
 607                 else
 608                 {
 609                         ERROR ("processes plugin: The `%s' configuration option is not "
 610                                         "understood and will be ignored.", c->key);
 611                         continue;
 612                 }
 613         }
 614
 615         return (0);
 616 }
 617
 618 static int ps_init (void)
 619 {
 620 #if HAVE_THREAD_INFO
 621         kern_return_t status;
 622
 623         port_host_self = mach_host_self ();
 624         port_task_self = mach_task_self ();
 625
 626         if (pset_list != NULL)
 627         {
 628                 vm_deallocate (port_task_self,
 629                                 (vm_address_t) pset_list,
 630                                 pset_list_len * sizeof (processor_set_t));
 631                 pset_list = NULL;
 632                 pset_list_len = 0;
 633         }
 634
 635         if ((status = host_processor_sets (port_host_self,
 636                                         &pset_list,
 637                                         &pset_list_len)) != KERN_SUCCESS)
 638         {
 639                 ERROR ("host_processor_sets failed: %s\n",
 640                                 mach_error_string (status));
 641                 pset_list = NULL;
 642                 pset_list_len = 0;
 643                 return (-1);
 644         }
 645 /* #endif HAVE_THREAD_INFO */
 646
 647 #elif KERNEL_LINUX
 648         pagesize_g = sysconf(_SC_PAGESIZE);
 649         DEBUG ("pagesize_g = %li; CONFIG_HZ = %i;",
 650                         pagesize_g, CONFIG_HZ);
 651 /* #endif KERNEL_LINUX */
 652
 653 #elif HAVE_LIBKVM_GETPROCS && (HAVE_STRUCT_KINFO_PROC_FREEBSD || HAVE_STRUCT_KINFO_PROC_OPENBSD)
 654         pagesize = getpagesize();
 655 /* #endif HAVE_LIBKVM_GETPROCS && (HAVE_STRUCT_KINFO_PROC_FREEBSD || HAVE_STRUCT_KINFO_PROC_OPENBSD) */
 656
 657 #elif HAVE_PROCINFO_H
 658         pagesize = getpagesize();
 659 #endif /* HAVE_PROCINFO_H */
 660
 661         return (0);
 662 } /* int ps_init */
 663
 664 /* submit global state (e.g.: qty of zombies, running, etc..) */
 665 static void ps_submit_state (const char *state, double value)
 666 {
 667         value_t values[1];
 668         value_list_t vl = VALUE_LIST_INIT;
 669
 670         values[0].gauge = value;
 671
 672         vl.values = values;
 673         vl.values_len = 1;
 674         sstrncpy (vl.host, hostname_g, sizeof (vl.host));
 675         sstrncpy (vl.plugin, "processes", sizeof (vl.plugin));
 676         sstrncpy (vl.plugin_instance, "", sizeof (vl.plugin_instance));
 677         sstrncpy (vl.type, "ps_state", sizeof (vl.type));
 678         sstrncpy (vl.type_instance, state, sizeof (vl.type_instance));
 679
 680         plugin_dispatch_values (&vl);
 681 }
 682
 683 /* submit info about specific process (e.g.: memory taken, cpu usage, etc..) */
 684 static void ps_submit_proc_list (procstat_t *ps)
 685 {
 686         value_t values[2];
 687         value_list_t vl = VALUE_LIST_INIT;
 688
 689         vl.values = values;
 690         vl.values_len = 2;
 691         sstrncpy (vl.host, hostname_g, sizeof (vl.host));
 692         sstrncpy (vl.plugin, "processes", sizeof (vl.plugin));
 693         sstrncpy (vl.plugin_instance, ps->name, sizeof (vl.plugin_instance));
 694
 695         sstrncpy (vl.type, "ps_vm", sizeof (vl.type));
 696         vl.values[0].gauge = ps->vmem_size;
 697         vl.values_len = 1;
 698         plugin_dispatch_values (&vl);
 699
 700         sstrncpy (vl.type, "ps_rss", sizeof (vl.type));
 701         vl.values[0].gauge = ps->vmem_rss;
 702         vl.values_len = 1;
 703         plugin_dispatch_values (&vl);
 704
 705         sstrncpy (vl.type, "ps_data", sizeof (vl.type));
 706         vl.values[0].gauge = ps->vmem_data;
 707         vl.values_len = 1;
 708         plugin_dispatch_values (&vl);
 709
 710         sstrncpy (vl.type, "ps_code", sizeof (vl.type));
 711         vl.values[0].gauge = ps->vmem_code;
 712         vl.values_len = 1;
 713         plugin_dispatch_values (&vl);
 714
 715         sstrncpy (vl.type, "ps_stacksize", sizeof (vl.type));
 716         vl.values[0].gauge = ps->stack_size;
 717         vl.values_len = 1;
 718         plugin_dispatch_values (&vl);
 719
 720         sstrncpy (vl.type, "ps_cputime", sizeof (vl.type));
 721         vl.values[0].derive = ps->cpu_user_counter;
 722         vl.values[1].derive = ps->cpu_system_counter;
 723         vl.values_len = 2;
 724         plugin_dispatch_values (&vl);
 725
 726         sstrncpy (vl.type, "ps_count", sizeof (vl.type));
 727         vl.values[0].gauge = ps->num_proc;
 728         vl.values[1].gauge = ps->num_lwp;
 729         vl.values_len = 2;
 730         plugin_dispatch_values (&vl);
 731
 732         sstrncpy (vl.type, "ps_pagefaults", sizeof (vl.type));
 733         vl.values[0].derive = ps->vmem_minflt_counter;
 734         vl.values[1].derive = ps->vmem_majflt_counter;
 735         vl.values_len = 2;
 736         plugin_dispatch_values (&vl);
 737
 738         if ( (ps->io_rchar != -1) && (ps->io_wchar != -1) )
 739         {
 740                 sstrncpy (vl.type, "ps_disk_octets", sizeof (vl.type));
 741                 vl.values[0].derive = ps->io_rchar;
 742                 vl.values[1].derive = ps->io_wchar;
 743                 vl.values_len = 2;
 744                 plugin_dispatch_values (&vl);
 745         }
 746
 747         if ( (ps->io_syscr != -1) && (ps->io_syscw != -1) )
 748         {
 749                 sstrncpy (vl.type, "ps_disk_ops", sizeof (vl.type));
 750                 vl.values[0].derive = ps->io_syscr;
 751                 vl.values[1].derive = ps->io_syscw;
 752                 vl.values_len = 2;
 753                 plugin_dispatch_values (&vl);
 754         }
 755
 756         if ( report_ctx_switch )
 757         {
 758                 sstrncpy (vl.type, "contextswitch", sizeof (vl.type));
 759                 sstrncpy (vl.type_instance, "voluntary", sizeof (vl.type_instance));
 760                 vl.values[0].derive = ps->cswitch_vol;
 761                 vl.values_len = 1;
 762                 plugin_dispatch_values (&vl);
 763
 764                 sstrncpy (vl.type, "contextswitch", sizeof (vl.type));
 765                 sstrncpy (vl.type_instance, "involuntary", sizeof (vl.type_instance));
 766                 vl.values[0].derive = ps->cswitch_invol;
 767                 vl.values_len = 1;
 768                 plugin_dispatch_values (&vl);
 769         }
 770
 771         DEBUG ("name = %s; num_proc = %lu; num_lwp = %lu; "
 772                         "vmem_size = %lu; vmem_rss = %lu; vmem_data = %lu; "
 773                         "vmem_code = %lu; "
 774                         "vmem_minflt_counter = %"PRIi64"; vmem_majflt_counter = %"PRIi64"; "
 775                         "cpu_user_counter = %"PRIi64"; cpu_system_counter = %"PRIi64"; "
 776                         "io_rchar = %"PRIi64"; io_wchar = %"PRIi64"; "
 777                         "io_syscr = %"PRIi64"; io_syscw = %"PRIi64"; "
 778                         "cswitch_vol = %"PRIi64"; cswitch_invol = %"PRIi64";",
 779                         ps->name, ps->num_proc, ps->num_lwp,
 780                         ps->vmem_size, ps->vmem_rss,
 781                         ps->vmem_data, ps->vmem_code,
 782                         ps->vmem_minflt_counter, ps->vmem_majflt_counter,
 783                         ps->cpu_user_counter, ps->cpu_system_counter,
 784                         ps->io_rchar, ps->io_wchar, ps->io_syscr, ps->io_syscw,
 785                         ps->cswitch_vol, ps->cswitch_invol);
 786 } /* void ps_submit_proc_list */
 787
 788 #if KERNEL_LINUX || KERNEL_SOLARIS
 789 static void ps_submit_fork_rate (derive_t value)
 790 {
 791         value_t values[1];
 792         value_list_t vl = VALUE_LIST_INIT;
 793
 794         values[0].derive = value;
 795
 796         vl.values = values;
 797         vl.values_len = 1;
 798         sstrncpy(vl.host, hostname_g, sizeof (vl.host));
 799         sstrncpy(vl.plugin, "processes", sizeof (vl.plugin));
 800         sstrncpy(vl.plugin_instance, "", sizeof (vl.plugin_instance));
 801         sstrncpy(vl.type, "fork_rate", sizeof (vl.type));
 802         sstrncpy(vl.type_instance, "", sizeof (vl.type_instance));
 803
 804         plugin_dispatch_values(&vl);
 805 }
 806 #endif /* KERNEL_LINUX || KERNEL_SOLARIS*/
 807
 808 /* ------- additional functions for KERNEL_LINUX/HAVE_THREAD_INFO ------- */
 809 #if KERNEL_LINUX
 810 static procstat_t *ps_read_tasks_status (long pid, procstat_t *ps)
 811 {
 812         char           dirname[64];
 813         DIR           *dh;
 814         char           filename[64];
 815         FILE          *fh;
 816         struct dirent *ent;
 817         derive_t cswitch_vol = 0;
 818         derive_t cswitch_invol = 0;
 819         char buffer[1024];
 820         char *fields[8];
 821         int numfields;
 822
 823         ssnprintf (dirname, sizeof (dirname), "/proc/%li/task", pid);
 824
 825         if ((dh = opendir (dirname)) == NULL)
 826         {
 827                 DEBUG ("Failed to open directory `%s'", dirname);
 828                 return (NULL);
 829         }
 830
 831         while ((ent = readdir (dh)) != NULL)
 832         {
 833                 char *tpid;
 834
 835                 if (!isdigit ((int) ent->d_name[0]))
 836                         continue;
 837
 838                 tpid = ent->d_name;
 839
 840                 ssnprintf (filename, sizeof (filename), "/proc/%li/task/%s/status", pid, tpid);
 841                 if ((fh = fopen (filename, "r")) == NULL)
 842                 {
 843                         DEBUG ("Failed to open file `%s'", filename);
 844                         continue;
 845                 }
 846
 847                 while (fgets (buffer, sizeof(buffer), fh) != NULL)
 848                 {
 849                         derive_t tmp;
 850                         char *endptr;
 851
 852                         if (strncmp (buffer, "voluntary_ctxt_switches", 23) != 0
 853                                 && strncmp (buffer, "nonvoluntary_ctxt_switches", 26) != 0)
 854                                 continue;
 855
 856                         numfields = strsplit (buffer, fields,
 857                                 STATIC_ARRAY_SIZE (fields));
 858
 859                         if (numfields < 2)
 860                                 continue;
 861
 862                         errno = 0;
 863                         endptr = NULL;
 864                         tmp = (derive_t) strtoll (fields[1], &endptr, /* base = */ 10);
 865                         if ((errno == 0) && (endptr != fields[1]))
 866                         {
 867                                 if (strncmp (buffer, "voluntary_ctxt_switches", 23) == 0)
 868                                 {
 869                                         cswitch_vol += tmp;
 870                                 }
 871                                 else if (strncmp (buffer, "nonvoluntary_ctxt_switches", 26) == 0)
 872                                 {
 873                                         cswitch_invol += tmp;
 874                                 }
 875                         }
 876                 } /* while (fgets) */
 877
 878                 if (fclose (fh))
 879                 {
 880                         char errbuf[1024];
 881                         WARNING ("processes: fclose: %s",
 882                                 sstrerror (errno, errbuf, sizeof (errbuf)));
 883                 }
 884         }
 885         closedir (dh);
 886
 887         ps->cswitch_vol = cswitch_vol;
 888         ps->cswitch_invol = cswitch_invol;
 889
 890         return (ps);
 891 } /* int *ps_read_tasks_status */
 892
 893 /* Read data from /proc/pid/status */
 894 static procstat_t *ps_read_status (long pid, procstat_t *ps)
 895 {
 896         FILE *fh;
 897         char buffer[1024];
 898         char filename[64];
 899         unsigned long lib = 0;
 900         unsigned long exe = 0;
 901         unsigned long data = 0;
 902         unsigned long threads = 0;
 903         char *fields[8];
 904         int numfields;
 905
 906         ssnprintf (filename, sizeof (filename), "/proc/%li/status", pid);
 907         if ((fh = fopen (filename, "r")) == NULL)
 908                 return (NULL);
 909
 910         while (fgets (buffer, sizeof(buffer), fh) != NULL)
 911         {
 912                 unsigned long tmp;
 913                 char *endptr;
 914
 915                 if (strncmp (buffer, "Vm", 2) != 0
 916                                 && strncmp (buffer, "Threads", 7) != 0)
 917                         continue;
 918
 919                 numfields = strsplit (buffer, fields,
 920                                 STATIC_ARRAY_SIZE (fields));
 921
 922                 if (numfields < 2)
 923                         continue;
 924
 925                 errno = 0;
 926                 endptr = NULL;
 927                 tmp = strtoul (fields[1], &endptr, /* base = */ 10);
 928                 if ((errno == 0) && (endptr != fields[1]))
 929                 {
 930                         if (strncmp (buffer, "VmData", 6) == 0)
 931                         {
 932                                 data = tmp;
 933                         }
 934                         else if (strncmp (buffer, "VmLib", 5) == 0)
 935                         {
 936                                 lib = tmp;
 937                         }
 938                         else if  (strncmp(buffer, "VmExe", 5) == 0)
 939                         {
 940                                 exe = tmp;
 941                         }
 942                         else if  (strncmp(buffer, "Threads", 7) == 0)
 943                         {
 944                                 threads = tmp;
 945                         }
 946                 }
 947         } /* while (fgets) */
 948
 949         if (fclose (fh))
 950         {
 951                 char errbuf[1024];
 952                 WARNING ("processes: fclose: %s",
 953                                 sstrerror (errno, errbuf, sizeof (errbuf)));
 954         }
 955
 956         ps->vmem_data = data * 1024;
 957         ps->vmem_code = (exe + lib) * 1024;
 958         if (threads != 0)
 959                 ps->num_lwp = threads;
 960
 961         return (ps);
 962 } /* procstat_t *ps_read_vmem */
 963
 964 static procstat_t *ps_read_io (long pid, procstat_t *ps)
 965 {
 966         FILE *fh;
 967         char buffer[1024];
 968         char filename[64];
 969
 970         char *fields[8];
 971         int numfields;
 972
 973         ssnprintf (filename, sizeof (filename), "/proc/%li/io", pid);
 974         if ((fh = fopen (filename, "r")) == NULL)
 975                 return (NULL);
 976
 977         while (fgets (buffer, sizeof (buffer), fh) != NULL)
 978         {
 979                 derive_t *val = NULL;
 980                 long long tmp;
 981                 char *endptr;
 982
 983                 if (strncasecmp (buffer, "rchar:", 6) == 0)
 984                         val = &(ps->io_rchar);
 985                 else if (strncasecmp (buffer, "wchar:", 6) == 0)
 986                         val = &(ps->io_wchar);
 987                 else if (strncasecmp (buffer, "syscr:", 6) == 0)
 988                         val = &(ps->io_syscr);
 989                 else if (strncasecmp (buffer, "syscw:", 6) == 0)
 990                         val = &(ps->io_syscw);
 991                 else
 992                         continue;
 993
 994                 numfields = strsplit (buffer, fields,
 995                                 STATIC_ARRAY_SIZE (fields));
 996
 997                 if (numfields < 2)
 998                         continue;
 999
1000                 errno = 0;
1001                 endptr = NULL;
1002                 tmp = strtoll (fields[1], &endptr, /* base = */ 10);
1003                 if ((errno != 0) || (endptr == fields[1]))
1004                         *val = -1;
1005                 else
1006                         *val = (derive_t) tmp;
1007         } /* while (fgets) */
1008
1009         if (fclose (fh))
1010         {
1011                 char errbuf[1024];
1012                 WARNING ("processes: fclose: %s",
1013                                 sstrerror (errno, errbuf, sizeof (errbuf)));
1014         }
1015
1016         return (ps);
1017 } /* procstat_t *ps_read_io */
1018
1019 static int ps_read_process (long pid, procstat_t *ps, char *state)
1020 {
1021         char  filename[64];
1022         char  buffer[1024];
1023
1024         char *fields[64];
1025         char  fields_len;
1026
1027         size_t buffer_len;
1028
1029         char  *buffer_ptr;
1030         size_t name_start_pos;
1031         size_t name_end_pos;
1032         size_t name_len;
1033
1034         derive_t cpu_user_counter;
1035         derive_t cpu_system_counter;
1036         long long unsigned vmem_size;
1037         long long unsigned vmem_rss;
1038         long long unsigned stack_size;
1039
1040         ssize_t status;
1041
1042         memset (ps, 0, sizeof (procstat_t));
1043
1044         ssnprintf (filename, sizeof (filename), "/proc/%li/stat", pid);
1045
1046         status = read_file_contents (filename, buffer, sizeof(buffer) - 1);
1047         if (status <= 0)
1048                 return (-1);
1049         buffer_len = (size_t) status;
1050         buffer[buffer_len] = 0;
1051
1052         /* The name of the process is enclosed in parens. Since the name can
1053          * contain parens itself, spaces, numbers and pretty much everything
1054          * else, use these to determine the process name. We don't use
1055          * strchr(3) and strrchr(3) to avoid pointer arithmetic which would
1056          * otherwise be required to determine name_len. */
1057         name_start_pos = 0;
1058         while (name_start_pos < buffer_len && buffer[name_start_pos] != '(')
1059                 name_start_pos++;
1060
1061         name_end_pos = buffer_len;
1062         while (name_end_pos > 0 && buffer[name_end_pos] != ')')
1063                 name_end_pos--;
1064
1065         /* Either '(' or ')' is not found or they are in the wrong order.
1066          * Anyway, something weird that shouldn't happen ever. */
1067         if (name_start_pos >= name_end_pos)
1068         {
1069                 ERROR ("processes plugin: name_start_pos = %zu >= name_end_pos = %zu",
1070                                 name_start_pos, name_end_pos);
1071                 return (-1);
1072         }
1073
1074         name_len = (name_end_pos - name_start_pos) - 1;
1075         if (name_len >= sizeof (ps->name))
1076                 name_len = sizeof (ps->name) - 1;
1077
1078         sstrncpy (ps->name, &buffer[name_start_pos + 1], name_len + 1);
1079
1080         if ((buffer_len - name_end_pos) < 2)
1081                 return (-1);
1082         buffer_ptr = &buffer[name_end_pos + 2];
1083
1084         fields_len = strsplit (buffer_ptr, fields, STATIC_ARRAY_SIZE (fields));
1085         if (fields_len < 22)
1086         {
1087                 DEBUG ("processes plugin: ps_read_process (pid = %li):"
1088                                 " `%s' has only %i fields..",
1089                                 pid, filename, fields_len);
1090                 return (-1);
1091         }
1092
1093         *state = fields[0][0];
1094
1095         if (*state == 'Z')
1096         {
1097                 ps->num_lwp  = 0;
1098                 ps->num_proc = 0;
1099         }
1100         else
1101         {
1102                 ps->num_lwp = strtoul (fields[17], /* endptr = */ NULL, /* base = */ 10);
1103                 if ((ps_read_status(pid, ps)) == NULL)
1104                 {
1105                         /* No VMem data */
1106                         ps->vmem_data = -1;
1107                         ps->vmem_code = -1;
1108                         DEBUG("ps_read_process: did not get vmem data for pid %li", pid);
1109                 }
1110                 if (ps->num_lwp == 0)
1111                         ps->num_lwp = 1;
1112                 ps->num_proc = 1;
1113         }
1114
1115         /* Leave the rest at zero if this is only a zombi */
1116         if (ps->num_proc == 0)
1117         {
1118                 DEBUG ("processes plugin: This is only a zombie: pid = %li; "
1119                                 "name = %s;", pid, ps->name);
1120                 return (0);
1121         }
1122
1123         cpu_user_counter   = atoll (fields[11]);
1124         cpu_system_counter = atoll (fields[12]);
1125         vmem_size          = atoll (fields[20]);
1126         vmem_rss           = atoll (fields[21]);
1127         ps->vmem_minflt_counter = atol (fields[7]);
1128         ps->vmem_majflt_counter = atol (fields[9]);
1129
1130         {
1131                 unsigned long long stack_start = atoll (fields[25]);
1132                 unsigned long long stack_ptr   = atoll (fields[26]);
1133
1134                 stack_size = (stack_start > stack_ptr)
1135                         ? stack_start - stack_ptr
1136                         : stack_ptr - stack_start;
1137         }
1138
1139         /* Convert jiffies to useconds */
1140         cpu_user_counter   = cpu_user_counter   * 1000000 / CONFIG_HZ;
1141         cpu_system_counter = cpu_system_counter * 1000000 / CONFIG_HZ;
1142         vmem_rss = vmem_rss * pagesize_g;
1143
1144         ps->cpu_user_counter = cpu_user_counter;
1145         ps->cpu_system_counter = cpu_system_counter;
1146         ps->vmem_size = (unsigned long) vmem_size;
1147         ps->vmem_rss = (unsigned long) vmem_rss;
1148         ps->stack_size = (unsigned long) stack_size;
1149
1150         if ( (ps_read_io (pid, ps)) == NULL)
1151         {
1152                 /* no io data */
1153                 ps->io_rchar = -1;
1154                 ps->io_wchar = -1;
1155                 ps->io_syscr = -1;
1156                 ps->io_syscw = -1;
1157
1158                 DEBUG("ps_read_process: not get io data for pid %li", pid);
1159         }
1160
1161         if ( report_ctx_switch )
1162         {
1163                 if ( (ps_read_tasks_status(pid, ps)) == NULL)
1164                 {
1165                         ps->cswitch_vol = -1;
1166                         ps->cswitch_invol = -1;
1167
1168                         DEBUG("ps_read_tasks_status: not get context "
1169                                         "switch data for pid %li", pid);
1170                 }
1171         }
1172
1173         /* success */
1174         return (0);
1175 } /* int ps_read_process (...) */
1176
1177 static char *ps_get_cmdline (long pid, char *name, char *buf, size_t buf_len)
1178 {
1179         char  *buf_ptr;
1180         size_t len;
1181
1182         char file[PATH_MAX];
1183         int  fd;
1184
1185         size_t n;
1186
1187         if ((pid < 1) || (NULL == buf) || (buf_len < 2))
1188                 return NULL;
1189
1190         ssnprintf (file, sizeof (file), "/proc/%li/cmdline", pid);
1191
1192         errno = 0;
1193         fd = open (file, O_RDONLY);
1194         if (fd < 0) {
1195                 char errbuf[4096];
1196                 /* ENOENT means the process exited while we were handling it.
1197                  * Don't complain about this, it only fills the logs. */
1198                 if (errno != ENOENT)
1199                         WARNING ("processes plugin: Failed to open `%s': %s.", file,
1200                                         sstrerror (errno, errbuf, sizeof (errbuf)));
1201                 return NULL;
1202         }
1203
1204         buf_ptr = buf;
1205         len     = buf_len;
1206
1207         n = 0;
1208
1209         while (42) {
1210                 ssize_t status;
1211
1212                 status = read (fd, (void *)buf_ptr, len);
1213
1214                 if (status < 0) {
1215                         char errbuf[1024];
1216
1217                         if ((EAGAIN == errno) || (EINTR == errno))
1218                                 continue;
1219
1220                         WARNING ("processes plugin: Failed to read from `%s': %s.", file,
1221                                         sstrerror (errno, errbuf, sizeof (errbuf)));
1222                         close (fd);
1223                         return NULL;
1224                 }
1225
1226                 n += status;
1227
1228                 if (status == 0)
1229                         break;
1230
1231                 buf_ptr += status;
1232                 len     -= status;
1233
1234                 if (len == 0)
1235                         break;
1236         }
1237
1238         close (fd);
1239
1240         if (0 == n) {
1241                 /* cmdline not available; e.g. kernel thread, zombie */
1242                 if (NULL == name)
1243                         return NULL;
1244
1245                 ssnprintf (buf, buf_len, "[%s]", name);
1246                 return buf;
1247         }
1248
1249         assert (n <= buf_len);
1250
1251         if (n == buf_len)
1252                 --n;
1253         buf[n] = '\0';
1254
1255         --n;
1256         /* remove trailing whitespace */
1257         while ((n > 0) && (isspace (buf[n]) || ('\0' == buf[n]))) {
1258                 buf[n] = '\0';
1259                 --n;
1260         }
1261
1262         /* arguments are separated by '\0' in /proc/<pid>/cmdline */
1263         while (n > 0) {
1264                 if ('\0' == buf[n])
1265                         buf[n] = ' ';
1266                 --n;
1267         }
1268         return buf;
1269 } /* char *ps_get_cmdline (...) */
1270
1271 static int read_fork_rate (void)
1272 {
1273         FILE *proc_stat;
1274         char buffer[1024];
1275         value_t value;
1276         _Bool value_valid = 0;
1277
1278         proc_stat = fopen ("/proc/stat", "r");
1279         if (proc_stat == NULL)
1280         {
1281                 char errbuf[1024];
1282                 ERROR ("processes plugin: fopen (/proc/stat) failed: %s",
1283                                 sstrerror (errno, errbuf, sizeof (errbuf)));
1284                 return (-1);
1285         }
1286
1287         while (fgets (buffer, sizeof (buffer), proc_stat) != NULL)
1288         {
1289                 int status;
1290                 char *fields[3];
1291                 int fields_num;
1292
1293                 fields_num = strsplit (buffer, fields,
1294                                 STATIC_ARRAY_SIZE (fields));
1295                 if (fields_num != 2)
1296                         continue;
1297
1298                 if (strcmp ("processes", fields[0]) != 0)
1299                         continue;
1300
1301                 status = parse_value (fields[1], &value, DS_TYPE_DERIVE);
1302                 if (status == 0)
1303                         value_valid = 1;
1304
1305                 break;
1306         }
1307         fclose(proc_stat);
1308
1309         if (!value_valid)
1310                 return (-1);
1311
1312         ps_submit_fork_rate (value.derive);
1313         return (0);
1314 }
1315 #endif /*KERNEL_LINUX */
1316
1317 #if KERNEL_SOLARIS
1318 static char *ps_get_cmdline (long pid, char *name __attribute__((unused)), /* {{{ */
1319     char *buffer, size_t buffer_size)
1320 {
1321         char path[PATH_MAX];
1322         psinfo_t info;
1323         ssize_t status;
1324
1325         snprintf(path, sizeof (path), "/proc/%li/psinfo", pid);
1326
1327         status = read_file_contents (path, (void *) &info, sizeof (info));
1328         if ((status < 0) || (((size_t) status) != sizeof (info)))
1329         {
1330                 ERROR ("processes plugin: Unexpected return value "
1331                                 "while reading \"%s\": "
1332                                 "Returned %zd but expected %zu.",
1333                                 path, status, buffer_size);
1334                 return (NULL);
1335         }
1336
1337         info.pr_psargs[sizeof (info.pr_psargs) - 1] = 0;
1338         sstrncpy (buffer, info.pr_psargs, buffer_size);
1339
1340         return (buffer);
1341 } /* }}} int ps_get_cmdline */
1342
1343 /*
1344  * Reads process information on the Solaris OS. The information comes mainly from
1345  * /proc/PID/status, /proc/PID/psinfo and /proc/PID/usage
1346  * The values for input and ouput chars are calculated "by hand"
1347  * Added a few "solaris" specific process states as well
1348  */
1349 static int ps_read_process(long pid, procstat_t *ps, char *state)
1350 {
1351         char filename[64];
1352         char f_psinfo[64], f_usage[64];
1353         char *buffer;
1354
1355         pstatus_t *myStatus;
1356         psinfo_t *myInfo;
1357         prusage_t *myUsage;
1358
1359         snprintf(filename, sizeof (filename), "/proc/%li/status", pid);
1360         snprintf(f_psinfo, sizeof (f_psinfo), "/proc/%li/psinfo", pid);
1361         snprintf(f_usage, sizeof (f_usage), "/proc/%li/usage", pid);
1362
1363
1364         buffer = calloc(1, sizeof (pstatus_t));
1365         read_file_contents(filename, buffer, sizeof (pstatus_t));
1366         myStatus = (pstatus_t *) buffer;
1367
1368         buffer = calloc(1, sizeof (psinfo_t));
1369         read_file_contents(f_psinfo, buffer, sizeof (psinfo_t));
1370         myInfo = (psinfo_t *) buffer;
1371
1372         buffer = calloc(1, sizeof (prusage_t));
1373         read_file_contents(f_usage, buffer, sizeof (prusage_t));
1374         myUsage = (prusage_t *) buffer;
1375
1376         sstrncpy(ps->name, myInfo->pr_fname, sizeof (myInfo->pr_fname));
1377         ps->num_lwp = myStatus->pr_nlwp;
1378         if (myInfo->pr_wstat != 0) {
1379                 ps->num_proc = 0;
1380                 ps->num_lwp = 0;
1381                 *state = (char) 'Z';
1382
1383                 sfree(myStatus);
1384                 sfree(myInfo);
1385                 sfree(myUsage);
1386                 return (0);
1387         } else {
1388                 ps->num_proc = 1;
1389                 ps->num_lwp = myInfo->pr_nlwp;
1390         }
1391
1392         /*
1393          * Convert system time and user time from nanoseconds to microseconds
1394          * for compatibility with the linux module
1395          */
1396         ps->cpu_system_counter = myStatus -> pr_stime.tv_nsec / 1000;
1397         ps->cpu_user_counter = myStatus -> pr_utime.tv_nsec / 1000;
1398
1399         /*
1400          * Convert rssize from KB to bytes to be consistent w/ the linux module
1401          */
1402         ps->vmem_rss = myInfo->pr_rssize * 1024;
1403         ps->vmem_size = myInfo->pr_size * 1024;
1404         ps->vmem_minflt_counter = myUsage->pr_minf;
1405         ps->vmem_majflt_counter = myUsage->pr_majf;
1406
1407         /*
1408          * TODO: Data and code segment calculations for Solaris
1409          */
1410
1411         ps->vmem_data = -1;
1412         ps->vmem_code = -1;
1413         ps->stack_size = myStatus->pr_stksize;
1414
1415         /*
1416          * Calculating input/ouput chars
1417          * Formula used is total chars / total blocks => chars/block
1418          * then convert input/output blocks to chars
1419          */
1420         ulong_t tot_chars = myUsage->pr_ioch;
1421         ulong_t tot_blocks = myUsage->pr_inblk + myUsage->pr_oublk;
1422         ulong_t chars_per_block = 1;
1423         if (tot_blocks != 0)
1424                 chars_per_block = tot_chars / tot_blocks;
1425         ps->io_rchar = myUsage->pr_inblk * chars_per_block;
1426         ps->io_wchar = myUsage->pr_oublk * chars_per_block;
1427         ps->io_syscr = myUsage->pr_sysc;
1428         ps->io_syscw = myUsage->pr_sysc;
1429
1430         /*
1431          * TODO: context switch counters for Solaris
1432    */
1433         ps->cswitch_vol   = -1;
1434         ps->cswitch_invol = -1;
1435
1436
1437         /*
1438          * TODO: Find way of setting BLOCKED and PAGING status
1439          */
1440
1441         *state = (char) 'R';
1442         if (myStatus->pr_flags & PR_ASLEEP)
1443                 *state = (char) 'S';
1444         else if (myStatus->pr_flags & PR_STOPPED)
1445                 *state = (char) 'T';
1446         else if (myStatus->pr_flags & PR_DETACH)
1447                 *state = (char) 'E';
1448         else if (myStatus->pr_flags & PR_DAEMON)
1449                 *state = (char) 'A';
1450         else if (myStatus->pr_flags & PR_ISSYS)
1451                 *state = (char) 'Y';
1452         else if (myStatus->pr_flags & PR_ORPHAN)
1453                 *state = (char) 'O';
1454
1455         sfree(myStatus);
1456         sfree(myInfo);
1457         sfree(myUsage);
1458
1459         return (0);
1460 }
1461
1462 /*
1463  * Reads the number of threads created since the last reboot. On Solaris these
1464  * are retrieved from kstat (module cpu, name sys, class misc, stat nthreads).
1465  * The result is the sum for all the threads created on each cpu
1466  */
1467 static int read_fork_rate (void)
1468 {
1469         extern kstat_ctl_t *kc;
1470         kstat_t *ksp_chain = NULL;
1471         derive_t result = 0;
1472
1473         if (kc == NULL)
1474                 return (-1);
1475
1476         for (ksp_chain = kc->kc_chain;
1477                         ksp_chain != NULL;
1478                         ksp_chain = ksp_chain->ks_next)
1479         {
1480                 if ((strcmp (ksp_chain->ks_module, "cpu") == 0)
1481                                 && (strcmp (ksp_chain->ks_name, "sys") == 0)
1482                                 && (strcmp (ksp_chain->ks_class, "misc") == 0))
1483                 {
1484                         long long tmp;
1485
1486                         kstat_read (kc, ksp_chain, NULL);
1487
1488                         tmp = get_kstat_value(ksp_chain, "nthreads");
1489                         if (tmp != -1LL)
1490                                 result += tmp;
1491                 }
1492         }
1493
1494         ps_submit_fork_rate (result);
1495         return (0);
1496 }
1497 #endif /* KERNEL_SOLARIS */
1498
1499 #if HAVE_THREAD_INFO
1500 static int mach_get_task_name (task_t t, int *pid, char *name, size_t name_max_len)
1501 {
1502         int mib[4];
1503
1504         struct kinfo_proc kp;
1505         size_t            kp_size;
1506
1507         mib[0] = CTL_KERN;
1508         mib[1] = KERN_PROC;
1509         mib[2] = KERN_PROC_PID;
1510
1511         if (pid_for_task (t, pid) != KERN_SUCCESS)
1512                 return (-1);
1513         mib[3] = *pid;
1514
1515         kp_size = sizeof (kp);
1516         if (sysctl (mib, 4, &kp, &kp_size, NULL, 0) != 0)
1517                 return (-1);
1518
1519         if (name_max_len > (MAXCOMLEN + 1))
1520                 name_max_len = MAXCOMLEN + 1;
1521
1522         strncpy (name, kp.kp_proc.p_comm, name_max_len - 1);
1523         name[name_max_len - 1] = '\0';
1524
1525         DEBUG ("pid = %i; name = %s;", *pid, name);
1526
1527         /* We don't do the special handling for `p_comm == "LaunchCFMApp"' as
1528          * `top' does it, because it is a lot of work and only used when
1529          * debugging. -octo */
1530
1531         return (0);
1532 }
1533 #endif /* HAVE_THREAD_INFO */
1534 /* ------- end of additional functions for KERNEL_LINUX/HAVE_THREAD_INFO ------- */
1535
1536 /* do actual readings from kernel */
1537 static int ps_read (void)
1538 {
1539 #if HAVE_THREAD_INFO
1540         kern_return_t            status;
1541
1542         int                      pset;
1543         processor_set_t          port_pset_priv;
1544
1545         int                      task;
1546         task_array_t             task_list;
1547         mach_msg_type_number_t   task_list_len;
1548
1549         int                      task_pid;
1550         char                     task_name[MAXCOMLEN + 1];
1551
1552         int                      thread;
1553         thread_act_array_t       thread_list;
1554         mach_msg_type_number_t   thread_list_len;
1555         thread_basic_info_data_t thread_data;
1556         mach_msg_type_number_t   thread_data_len;
1557
1558         int running  = 0;
1559         int sleeping = 0;
1560         int zombies  = 0;
1561         int stopped  = 0;
1562         int blocked  = 0;
1563
1564         procstat_t *ps;
1565         procstat_entry_t pse;
1566
1567         ps_list_reset ();
1568
1569         /*
1570          * The Mach-concept is a little different from the traditional UNIX
1571          * concept: All the work is done in threads. Threads are contained in
1572          * `tasks'. Therefore, `task status' doesn't make much sense, since
1573          * it's actually a `thread status'.
1574          * Tasks are assigned to sets of processors, so that's where you go to
1575          * get a list.
1576          */
1577         for (pset = 0; pset < pset_list_len; pset++)
1578         {
1579                 if ((status = host_processor_set_priv (port_host_self,
1580                                                 pset_list[pset],
1581                                                 &port_pset_priv)) != KERN_SUCCESS)
1582                 {
1583                         ERROR ("host_processor_set_priv failed: %s\n",
1584                                         mach_error_string (status));
1585                         continue;
1586                 }
1587
1588                 if ((status = processor_set_tasks (port_pset_priv,
1589                                                 &task_list,
1590                                                 &task_list_len)) != KERN_SUCCESS)
1591                 {
1592                         ERROR ("processor_set_tasks failed: %s\n",
1593                                         mach_error_string (status));
1594                         mach_port_deallocate (port_task_self, port_pset_priv);
1595                         continue;
1596                 }
1597
1598                 for (task = 0; task < task_list_len; task++)
1599                 {
1600                         ps = NULL;
1601                         if (mach_get_task_name (task_list[task],
1602                                                 &task_pid,
1603                                                 task_name, PROCSTAT_NAME_LEN) == 0)
1604                         {
1605                                 /* search for at least one match */
1606                                 for (ps = list_head_g; ps != NULL; ps = ps->next)
1607                                         /* FIXME: cmdline should be here instead of NULL */
1608                                         if (ps_list_match (task_name, NULL, ps) == 1)
1609                                                 break;
1610                         }
1611
1612                         /* Collect more detailed statistics for this process */
1613                         if (ps != NULL)
1614                         {
1615                                 task_basic_info_data_t        task_basic_info;
1616                                 mach_msg_type_number_t        task_basic_info_len;
1617                                 task_events_info_data_t       task_events_info;
1618                                 mach_msg_type_number_t        task_events_info_len;
1619                                 task_absolutetime_info_data_t task_absolutetime_info;
1620                                 mach_msg_type_number_t        task_absolutetime_info_len;
1621
1622                                 memset (&pse, '\0', sizeof (pse));
1623                                 pse.id = task_pid;
1624
1625                                 task_basic_info_len = TASK_BASIC_INFO_COUNT;
1626                                 status = task_info (task_list[task],
1627                                                 TASK_BASIC_INFO,
1628                                                 (task_info_t) &task_basic_info,
1629                                                 &task_basic_info_len);
1630                                 if (status != KERN_SUCCESS)
1631                                 {
1632                                         ERROR ("task_info failed: %s",
1633                                                         mach_error_string (status));
1634                                         continue; /* with next thread_list */
1635                                 }
1636
1637                                 task_events_info_len = TASK_EVENTS_INFO_COUNT;
1638                                 status = task_info (task_list[task],
1639                                                 TASK_EVENTS_INFO,
1640                                                 (task_info_t) &task_events_info,
1641                                                 &task_events_info_len);
1642                                 if (status != KERN_SUCCESS)
1643                                 {
1644                                         ERROR ("task_info failed: %s",
1645                                                         mach_error_string (status));
1646                                         continue; /* with next thread_list */
1647                                 }
1648
1649                                 task_absolutetime_info_len = TASK_ABSOLUTETIME_INFO_COUNT;
1650                                 status = task_info (task_list[task],
1651                                                 TASK_ABSOLUTETIME_INFO,
1652                                                 (task_info_t) &task_absolutetime_info,
1653                                                 &task_absolutetime_info_len);
1654                                 if (status != KERN_SUCCESS)
1655                                 {
1656                                         ERROR ("task_info failed: %s",
1657                                                         mach_error_string (status));
1658                                         continue; /* with next thread_list */
1659                                 }
1660
1661                                 pse.num_proc++;
1662                                 pse.vmem_size = task_basic_info.virtual_size;
1663                                 pse.vmem_rss = task_basic_info.resident_size;
1664                                 /* Does not seem to be easily exposed */
1665                                 pse.vmem_data = 0;
1666                                 pse.vmem_code = 0;
1667
1668                                 pse.vmem_minflt_counter = task_events_info.cow_faults;
1669                                 pse.vmem_majflt_counter = task_events_info.faults;
1670
1671                                 pse.cpu_user_counter = task_absolutetime_info.total_user;
1672                                 pse.cpu_system_counter = task_absolutetime_info.total_system;
1673
1674                                 /* context switch counters not implemented */
1675                                 pse.cswitch_vol   = -1;
1676                                 pse.cswitch_invol = -1;
1677                         }
1678
1679                         status = task_threads (task_list[task], &thread_list,
1680                                         &thread_list_len);
1681                         if (status != KERN_SUCCESS)
1682                         {
1683                                 /* Apple's `top' treats this case a zombie. It
1684                                  * makes sense to some extend: A `zombie'
1685                                  * thread is nonsense, since the task/process
1686                                  * is dead. */
1687                                 zombies++;
1688                                 DEBUG ("task_threads failed: %s",
1689                                                 mach_error_string (status));
1690                                 if (task_list[task] != port_task_self)
1691                                         mach_port_deallocate (port_task_self,
1692                                                         task_list[task]);
1693                                 continue; /* with next task_list */
1694                         }
1695
1696                         for (thread = 0; thread < thread_list_len; thread++)
1697                         {
1698                                 thread_data_len = THREAD_BASIC_INFO_COUNT;
1699                                 status = thread_info (thread_list[thread],
1700                                                 THREAD_BASIC_INFO,
1701                                                 (thread_info_t) &thread_data,
1702                                                 &thread_data_len);
1703                                 if (status != KERN_SUCCESS)
1704                                 {
1705                                         ERROR ("thread_info failed: %s",
1706                                                         mach_error_string (status));
1707                                         if (task_list[task] != port_task_self)
1708                                                 mach_port_deallocate (port_task_self,
1709                                                                 thread_list[thread]);
1710                                         continue; /* with next thread_list */
1711                                 }
1712
1713                                 if (ps != NULL)
1714                                         pse.num_lwp++;
1715
1716                                 switch (thread_data.run_state)
1717                                 {
1718                                         case TH_STATE_RUNNING:
1719                                                 running++;
1720                                                 break;
1721                                         case TH_STATE_STOPPED:
1722                                         /* What exactly is `halted'? */
1723                                         case TH_STATE_HALTED:
1724                                                 stopped++;
1725                                                 break;
1726                                         case TH_STATE_WAITING:
1727                                                 sleeping++;
1728                                                 break;
1729                                         case TH_STATE_UNINTERRUPTIBLE:
1730                                                 blocked++;
1731                                                 break;
1732                                         /* There is no `zombie' case here,
1733                                          * since there are no zombie-threads.
1734                                          * There's only zombie tasks, which are
1735                                          * handled above. */
1736                                         default:
1737                                                 WARNING ("Unknown thread status: %i",
1738                                                                 thread_data.run_state);
1739                                                 break;
1740                                 } /* switch (thread_data.run_state) */
1741
1742                                 if (task_list[task] != port_task_self)
1743                                 {
1744                                         status = mach_port_deallocate (port_task_self,
1745                                                         thread_list[thread]);
1746                                         if (status != KERN_SUCCESS)
1747                                                 ERROR ("mach_port_deallocate failed: %s",
1748                                                                 mach_error_string (status));
1749                                 }
1750                         } /* for (thread_list) */
1751
1752                         if ((status = vm_deallocate (port_task_self,
1753                                                         (vm_address_t) thread_list,
1754                                                         thread_list_len * sizeof (thread_act_t)))
1755                                         != KERN_SUCCESS)
1756                         {
1757                                 ERROR ("vm_deallocate failed: %s",
1758                                                 mach_error_string (status));
1759                         }
1760                         thread_list = NULL;
1761                         thread_list_len = 0;
1762
1763                         /* Only deallocate the task port, if it isn't our own.
1764                          * Don't know what would happen in that case, but this
1765                          * is what Apple's top does.. ;) */
1766                         if (task_list[task] != port_task_self)
1767                         {
1768                                 status = mach_port_deallocate (port_task_self,
1769                                                 task_list[task]);
1770                                 if (status != KERN_SUCCESS)
1771                                         ERROR ("mach_port_deallocate failed: %s",
1772                                                         mach_error_string (status));
1773                         }
1774
1775                         if (ps != NULL)
1776                                 /* FIXME: cmdline should be here instead of NULL */
1777                                 ps_list_add (task_name, NULL, &pse);
1778                 } /* for (task_list) */
1779
1780                 if ((status = vm_deallocate (port_task_self,
1781                                 (vm_address_t) task_list,
1782                                 task_list_len * sizeof (task_t))) != KERN_SUCCESS)
1783                 {
1784                         ERROR ("vm_deallocate failed: %s",
1785                                         mach_error_string (status));
1786                 }
1787                 task_list = NULL;
1788                 task_list_len = 0;
1789
1790                 if ((status = mach_port_deallocate (port_task_self, port_pset_priv))
1791                                 != KERN_SUCCESS)
1792                 {
1793                         ERROR ("mach_port_deallocate failed: %s",
1794                                         mach_error_string (status));
1795                 }
1796         } /* for (pset_list) */
1797
1798         ps_submit_state ("running", running);
1799         ps_submit_state ("sleeping", sleeping);
1800         ps_submit_state ("zombies", zombies);
1801         ps_submit_state ("stopped", stopped);
1802         ps_submit_state ("blocked", blocked);
1803
1804         for (ps = list_head_g; ps != NULL; ps = ps->next)
1805                 ps_submit_proc_list (ps);
1806 /* #endif HAVE_THREAD_INFO */
1807
1808 #elif KERNEL_LINUX
1809         int running  = 0;
1810         int sleeping = 0;
1811         int zombies  = 0;
1812         int stopped  = 0;
1813         int paging   = 0;
1814         int blocked  = 0;
1815
1816         struct dirent *ent;
1817         DIR           *proc;
1818         long           pid;
1819
1820         char cmdline[CMDLINE_BUFFER_SIZE];
1821
1822         int        status;
1823         procstat_t ps;
1824         procstat_entry_t pse;
1825         char       state;
1826
1827         procstat_t *ps_ptr;
1828
1829         running = sleeping = zombies = stopped = paging = blocked = 0;
1830         ps_list_reset ();
1831
1832         if ((proc = opendir ("/proc")) == NULL)
1833         {
1834                 char errbuf[1024];
1835                 ERROR ("Cannot open `/proc': %s",
1836                                 sstrerror (errno, errbuf, sizeof (errbuf)));
1837                 return (-1);
1838         }
1839
1840         while ((ent = readdir (proc)) != NULL)
1841         {
1842                 if (!isdigit (ent->d_name[0]))
1843                         continue;
1844
1845                 if ((pid = atol (ent->d_name)) < 1)
1846                         continue;
1847
1848                 status = ps_read_process (pid, &ps, &state);
1849                 if (status != 0)
1850                 {
1851                         DEBUG ("ps_read_process failed: %i", status);
1852                         continue;
1853                 }
1854
1855                 memset (&pse, 0, sizeof (pse));
1856                 pse.id       = pid;
1857                 pse.age      = 0;
1858
1859                 pse.num_proc   = ps.num_proc;
1860                 pse.num_lwp    = ps.num_lwp;
1861                 pse.vmem_size  = ps.vmem_size;
1862                 pse.vmem_rss   = ps.vmem_rss;
1863                 pse.vmem_data  = ps.vmem_data;
1864                 pse.vmem_code  = ps.vmem_code;
1865                 pse.stack_size = ps.stack_size;
1866
1867                 pse.vmem_minflt = 0;
1868                 pse.vmem_minflt_counter = ps.vmem_minflt_counter;
1869                 pse.vmem_majflt = 0;
1870                 pse.vmem_majflt_counter = ps.vmem_majflt_counter;
1871
1872                 pse.cpu_user = 0;
1873                 pse.cpu_user_counter = ps.cpu_user_counter;
1874                 pse.cpu_system = 0;
1875                 pse.cpu_system_counter = ps.cpu_system_counter;
1876
1877                 pse.io_rchar = ps.io_rchar;
1878                 pse.io_wchar = ps.io_wchar;
1879                 pse.io_syscr = ps.io_syscr;
1880                 pse.io_syscw = ps.io_syscw;
1881
1882                 pse.cswitch_vol = ps.cswitch_vol;
1883                 pse.cswitch_invol = ps.cswitch_invol;
1884
1885                 switch (state)
1886                 {
1887                         case 'R': running++;  break;
1888                         case 'S': sleeping++; break;
1889                         case 'D': blocked++;  break;
1890                         case 'Z': zombies++;  break;
1891                         case 'T': stopped++;  break;
1892                         case 'W': paging++;   break;
1893                 }
1894
1895                 ps_list_add (ps.name,
1896                                 ps_get_cmdline (pid, ps.name, cmdline, sizeof (cmdline)),
1897                                 &pse);
1898         }
1899
1900         closedir (proc);
1901
1902         ps_submit_state ("running",  running);
1903         ps_submit_state ("sleeping", sleeping);
1904         ps_submit_state ("zombies",  zombies);
1905         ps_submit_state ("stopped",  stopped);
1906         ps_submit_state ("paging",   paging);
1907         ps_submit_state ("blocked",  blocked);
1908
1909         for (ps_ptr = list_head_g; ps_ptr != NULL; ps_ptr = ps_ptr->next)
1910                 ps_submit_proc_list (ps_ptr);
1911
1912         read_fork_rate();
1913 /* #endif KERNEL_LINUX */
1914
1915 #elif HAVE_LIBKVM_GETPROCS && HAVE_STRUCT_KINFO_PROC_FREEBSD
1916         int running  = 0;
1917         int sleeping = 0;
1918         int zombies  = 0;
1919         int stopped  = 0;
1920         int blocked  = 0;
1921         int idle     = 0;
1922         int wait     = 0;
1923
1924         kvm_t *kd;
1925         char errbuf[_POSIX2_LINE_MAX];
1926         struct kinfo_proc *procs;          /* array of processes */
1927         struct kinfo_proc *proc_ptr = NULL;
1928         int count;                         /* returns number of processes */
1929         int i;
1930
1931         procstat_t *ps_ptr;
1932         procstat_entry_t pse;
1933
1934         ps_list_reset ();
1935
1936         /* Open the kvm interface, get a descriptor */
1937         kd = kvm_openfiles (NULL, "/dev/null", NULL, 0, errbuf);
1938         if (kd == NULL)
1939         {
1940                 ERROR ("processes plugin: Cannot open kvm interface: %s",
1941                                 errbuf);
1942                 return (0);
1943         }
1944
1945         /* Get the list of processes. */
1946         procs = kvm_getprocs(kd, KERN_PROC_ALL, 0, &count);
1947         if (procs == NULL)
1948         {
1949                 ERROR ("processes plugin: Cannot get kvm processes list: %s",
1950                                 kvm_geterr(kd));
1951                 kvm_close (kd);
1952                 return (0);
1953         }
1954
1955         /* Iterate through the processes in kinfo_proc */
1956         for (i = 0; i < count; i++)
1957         {
1958                 /* Create only one process list entry per _process_, i.e.
1959                  * filter out threads (duplicate PID entries). */
1960                 if ((proc_ptr == NULL) || (proc_ptr->ki_pid != procs[i].ki_pid))
1961                 {
1962                         char cmdline[CMDLINE_BUFFER_SIZE] = "";
1963                         _Bool have_cmdline = 0;
1964
1965                         proc_ptr = &(procs[i]);
1966                         /* Don't probe system processes and processes without arguments */
1967                         if (((procs[i].ki_flag & P_SYSTEM) == 0)
1968                                         && (procs[i].ki_args != NULL))
1969                         {
1970                                 char **argv;
1971                                 int argc;
1972                                 int status;
1973
1974                                 /* retrieve the arguments */
1975                                 argv = kvm_getargv (kd, proc_ptr, /* nchr = */ 0);
1976                                 argc = 0;
1977                                 if ((argv != NULL) && (argv[0] != NULL))
1978                                 {
1979                                         while (argv[argc] != NULL)
1980                                                 argc++;
1981
1982                                         status = strjoin (cmdline, sizeof (cmdline), argv, argc, " ");
1983                                         if (status < 0)
1984                                                 WARNING ("processes plugin: Command line did not fit into buffer.");
1985                                         else
1986                                                 have_cmdline = 1;
1987                                 }
1988                         } /* if (process has argument list) */
1989
1990                         pse.id       = procs[i].ki_pid;
1991                         pse.age      = 0;
1992
1993                         pse.num_proc = 1;
1994                         pse.num_lwp  = procs[i].ki_numthreads;
1995
1996                         pse.vmem_size = procs[i].ki_size;
1997                         pse.vmem_rss = procs[i].ki_rssize * pagesize;
1998                         pse.vmem_data = procs[i].ki_dsize * pagesize;
1999                         pse.vmem_code = procs[i].ki_tsize * pagesize;
2000                         pse.stack_size = procs[i].ki_ssize * pagesize;
2001                         pse.vmem_minflt = 0;
2002                         pse.vmem_minflt_counter = procs[i].ki_rusage.ru_minflt;
2003                         pse.vmem_majflt = 0;
2004                         pse.vmem_majflt_counter = procs[i].ki_rusage.ru_majflt;
2005
2006                         pse.cpu_user = 0;
2007                         pse.cpu_system = 0;
2008                         pse.cpu_user_counter = 0;
2009                         pse.cpu_system_counter = 0;
2010                         /*
2011                          * The u-area might be swapped out, and we can't get
2012                          * at it because we have a crashdump and no swap.
2013                          * If it's here fill in these fields, otherwise, just
2014                          * leave them 0.
2015                          */
2016                         if (procs[i].ki_flag & P_INMEM)
2017                         {
2018                                 pse.cpu_user_counter = procs[i].ki_rusage.ru_utime.tv_usec
2019                                         + (1000000lu * procs[i].ki_rusage.ru_utime.tv_sec);
2020                                 pse.cpu_system_counter = procs[i].ki_rusage.ru_stime.tv_usec
2021                                         + (1000000lu * procs[i].ki_rusage.ru_stime.tv_sec);
2022                         }
2023
2024                         /* no I/O data */
2025                         pse.io_rchar = -1;
2026                         pse.io_wchar = -1;
2027                         pse.io_syscr = -1;
2028                         pse.io_syscw = -1;
2029
2030                         /* context switch counters not implemented */
2031                         pse.cswitch_vol   = -1;
2032                         pse.cswitch_invol = -1;
2033
2034                         ps_list_add (procs[i].ki_comm, have_cmdline ? cmdline : NULL, &pse);
2035
2036                         switch (procs[i].ki_stat)
2037                         {
2038                                 case SSTOP:     stopped++;      break;
2039                                 case SSLEEP:    sleeping++;     break;
2040                                 case SRUN:      running++;      break;
2041                                 case SIDL:      idle++;         break;
2042                                 case SWAIT:     wait++;         break;
2043                                 case SLOCK:     blocked++;      break;
2044                                 case SZOMB:     zombies++;      break;
2045                         }
2046                 } /* if ((proc_ptr == NULL) || (proc_ptr->ki_pid != procs[i].ki_pid)) */
2047         }
2048
2049         kvm_close(kd);
2050
2051         ps_submit_state ("running",  running);
2052         ps_submit_state ("sleeping", sleeping);
2053         ps_submit_state ("zombies",  zombies);
2054         ps_submit_state ("stopped",  stopped);
2055         ps_submit_state ("blocked",  blocked);
2056         ps_submit_state ("idle",     idle);
2057         ps_submit_state ("wait",     wait);
2058
2059         for (ps_ptr = list_head_g; ps_ptr != NULL; ps_ptr = ps_ptr->next)
2060                 ps_submit_proc_list (ps_ptr);
2061 /* #endif HAVE_LIBKVM_GETPROCS && HAVE_STRUCT_KINFO_PROC_FREEBSD */
2062
2063 #elif HAVE_LIBKVM_GETPROCS && HAVE_STRUCT_KINFO_PROC_OPENBSD
2064         int running  = 0;
2065         int sleeping = 0;
2066         int zombies  = 0;
2067         int stopped  = 0;
2068         int onproc   = 0;
2069         int idle     = 0;
2070         int dead     = 0;
2071
2072         kvm_t *kd;
2073         char errbuf[1024];
2074         struct kinfo_proc *procs;          /* array of processes */
2075         struct kinfo_proc *proc_ptr = NULL;
2076         int count;                         /* returns number of processes */
2077         int i;
2078
2079         procstat_t *ps_ptr;
2080         procstat_entry_t pse;
2081
2082         ps_list_reset ();
2083
2084         /* Open the kvm interface, get a descriptor */
2085         kd = kvm_open (NULL, NULL, NULL, 0, errbuf);
2086         if (kd == NULL)
2087         {
2088                 ERROR ("processes plugin: Cannot open kvm interface: %s",
2089                                 errbuf);
2090                 return (0);
2091         }
2092
2093         /* Get the list of processes. */
2094         procs = kvm_getprocs(kd, KERN_PROC_ALL, 0, sizeof(struct kinfo_proc), &count);
2095         if (procs == NULL)
2096         {
2097                 ERROR ("processes plugin: Cannot get kvm processes list: %s",
2098                                 kvm_geterr(kd));
2099                 kvm_close (kd);
2100                 return (0);
2101         }
2102
2103         /* Iterate through the processes in kinfo_proc */
2104         for (i = 0; i < count; i++)
2105         {
2106                 /* Create only one process list entry per _process_, i.e.
2107                  * filter out threads (duplicate PID entries). */
2108                 if ((proc_ptr == NULL) || (proc_ptr->p_pid != procs[i].p_pid))
2109                 {
2110                         char cmdline[CMDLINE_BUFFER_SIZE] = "";
2111                         _Bool have_cmdline = 0;
2112
2113                         proc_ptr = &(procs[i]);
2114                         /* Don't probe zombie processes  */
2115                         if (!P_ZOMBIE(proc_ptr))
2116                         {
2117                                 char **argv;
2118                                 int argc;
2119                                 int status;
2120
2121                                 /* retrieve the arguments */
2122                                 argv = kvm_getargv (kd, proc_ptr, /* nchr = */ 0);
2123                                 argc = 0;
2124                                 if ((argv != NULL) && (argv[0] != NULL))
2125                                 {
2126                                         while (argv[argc] != NULL)
2127                                                 argc++;
2128
2129                                         status = strjoin (cmdline, sizeof (cmdline), argv, argc, " ");
2130                                         if (status < 0)
2131                                                 WARNING ("processes plugin: Command line did not fit into buffer.");
2132                                         else
2133                                                 have_cmdline = 1;
2134                                 }
2135                         } /* if (process has argument list) */
2136
2137                         memset (&pse, 0, sizeof (pse));
2138                         pse.id       = procs[i].p_pid;
2139                         pse.age      = 0;
2140
2141                         pse.num_proc = 1;
2142                         pse.num_lwp  = 1; /* XXX: accumulate p_tid values for a single p_pid ? */
2143
2144                         pse.vmem_rss = procs[i].p_vm_rssize * pagesize;
2145                         pse.vmem_data = procs[i].p_vm_dsize * pagesize;
2146                         pse.vmem_code = procs[i].p_vm_tsize * pagesize;
2147                         pse.stack_size = procs[i].p_vm_ssize * pagesize;
2148                         pse.vmem_size = pse.stack_size + pse.vmem_code + pse.vmem_data;
2149                         pse.vmem_minflt = 0;
2150                         pse.vmem_minflt_counter = procs[i].p_uru_minflt;
2151                         pse.vmem_majflt = 0;
2152                         pse.vmem_majflt_counter = procs[i].p_uru_majflt;
2153
2154                         pse.cpu_user = 0;
2155                         pse.cpu_system = 0;
2156                         pse.cpu_user_counter = procs[i].p_uutime_usec +
2157                                                 (1000000lu * procs[i].p_uutime_sec);
2158                         pse.cpu_system_counter = procs[i].p_ustime_usec +
2159                                                 (1000000lu * procs[i].p_ustime_sec);
2160
2161                         /* no I/O data */
2162                         pse.io_rchar = -1;
2163                         pse.io_wchar = -1;
2164                         pse.io_syscr = -1;
2165                         pse.io_syscw = -1;
2166
2167                         /* context switch counters not implemented */
2168                         pse.cswitch_vol   = -1;
2169                         pse.cswitch_invol = -1;
2170
2171                         ps_list_add (procs[i].p_comm, have_cmdline ? cmdline : NULL, &pse);
2172
2173                         switch (procs[i].p_stat)
2174                         {
2175                                 case SSTOP:     stopped++;      break;
2176                                 case SSLEEP:    sleeping++;     break;
2177                                 case SRUN:      running++;      break;
2178                                 case SIDL:      idle++;         break;
2179                                 case SONPROC:   onproc++;       break;
2180                                 case SDEAD:     dead++;         break;
2181                                 case SZOMB:     zombies++;      break;
2182                         }
2183                 } /* if ((proc_ptr == NULL) || (proc_ptr->p_pid != procs[i].p_pid)) */
2184         }
2185
2186         kvm_close(kd);
2187
2188         ps_submit_state ("running",  running);
2189         ps_submit_state ("sleeping", sleeping);
2190         ps_submit_state ("zombies",  zombies);
2191         ps_submit_state ("stopped",  stopped);
2192         ps_submit_state ("onproc",   onproc);
2193         ps_submit_state ("idle",     idle);
2194         ps_submit_state ("dead",     dead);
2195
2196         for (ps_ptr = list_head_g; ps_ptr != NULL; ps_ptr = ps_ptr->next)
2197                 ps_submit_proc_list (ps_ptr);
2198 /* #endif HAVE_LIBKVM_GETPROCS && HAVE_STRUCT_KINFO_PROC_OPENBSD */
2199
2200 #elif HAVE_PROCINFO_H
2201         /* AIX */
2202         int running  = 0;
2203         int sleeping = 0;
2204         int zombies  = 0;
2205         int stopped  = 0;
2206         int paging   = 0;
2207         int blocked  = 0;
2208
2209         pid_t pindex = 0;
2210         int nprocs;
2211
2212         procstat_t *ps;
2213         procstat_entry_t pse;
2214
2215         ps_list_reset ();
2216         while ((nprocs = getprocs64 (procentry, sizeof(struct procentry64),
2217                                         /* fdsinfo = */ NULL, sizeof(struct fdsinfo64),
2218                                         &pindex, MAXPROCENTRY)) > 0)
2219         {
2220                 int i;
2221
2222                 for (i = 0; i < nprocs; i++)
2223                 {
2224                         tid64_t thindex;
2225                         int nthreads;
2226                         char arglist[MAXARGLN+1];
2227                         char *cargs;
2228                         char *cmdline;
2229
2230                         if (procentry[i].pi_state == SNONE) continue;
2231                         /* if (procentry[i].pi_state == SZOMB)  FIXME */
2232
2233                         cmdline = procentry[i].pi_comm;
2234                         cargs = procentry[i].pi_comm;
2235                         if ( procentry[i].pi_flags & SKPROC )
2236                         {
2237                                 if (procentry[i].pi_pid == 0)
2238                                         cmdline = "swapper";
2239                                 cargs = cmdline;
2240                         }
2241                         else
2242                         {
2243                                 if (getargs(&procentry[i], sizeof(struct procentry64), arglist, MAXARGLN) >= 0)
2244                                 {
2245                                         int n;
2246
2247                                         n = -1;
2248                                         while (++n < MAXARGLN)
2249                                         {
2250                                                 if (arglist[n] == '\0')
2251                                                 {
2252                                                         if (arglist[n+1] == '\0')
2253                                                                 break;
2254                                                         arglist[n] = ' ';
2255                                                 }
2256                                         }
2257                                         cargs = arglist;
2258                                 }
2259                         }
2260
2261                         pse.id       = procentry[i].pi_pid;
2262                         pse.age      = 0;
2263                         pse.num_lwp  = procentry[i].pi_thcount;
2264                         pse.num_proc = 1;
2265
2266                         thindex=0;
2267                         while ((nthreads = getthrds64(procentry[i].pi_pid,
2268                                                         thrdentry, sizeof(struct thrdentry64),
2269                                                         &thindex, MAXTHRDENTRY)) > 0)
2270                         {
2271                                 int j;
2272
2273                                 for (j=0; j< nthreads; j++)
2274                                 {
2275                                         switch (thrdentry[j].ti_state)
2276                                         {
2277                                                 /* case TSNONE: break; */
2278                                                 case TSIDL:     blocked++;      break; /* FIXME is really blocked */
2279                                                 case TSRUN:     running++;      break;
2280                                                 case TSSLEEP:   sleeping++;     break;
2281                                                 case TSSWAP:    paging++;       break;
2282                                                 case TSSTOP:    stopped++;      break;
2283                                                 case TSZOMB:    zombies++;      break;
2284                                         }
2285                                 }
2286                                 if (nthreads < MAXTHRDENTRY)
2287                                         break;
2288                         }
2289
2290                         pse.cpu_user = 0;
2291                         /* tv_usec is nanosec ??? */
2292                         pse.cpu_user_counter = procentry[i].pi_ru.ru_utime.tv_sec * 1000000 +
2293                                 procentry[i].pi_ru.ru_utime.tv_usec / 1000;
2294
2295                         pse.cpu_system = 0;
2296                         /* tv_usec is nanosec ??? */
2297                         pse.cpu_system_counter = procentry[i].pi_ru.ru_stime.tv_sec * 1000000 +
2298                                 procentry[i].pi_ru.ru_stime.tv_usec / 1000;
2299
2300                         pse.vmem_minflt = 0;
2301                         pse.vmem_minflt_counter = procentry[i].pi_minflt;
2302                         pse.vmem_majflt = 0;
2303                         pse.vmem_majflt_counter = procentry[i].pi_majflt;
2304
2305                         pse.vmem_size = procentry[i].pi_tsize + procentry[i].pi_dvm * pagesize;
2306                         pse.vmem_rss = (procentry[i].pi_drss + procentry[i].pi_trss) * pagesize;
2307                         /* Not supported */
2308                         pse.vmem_data = 0;
2309                         pse.vmem_code = 0;
2310                         pse.stack_size =  0;
2311
2312                         pse.io_rchar = -1;
2313                         pse.io_wchar = -1;
2314                         pse.io_syscr = -1;
2315                         pse.io_syscw = -1;
2316
2317                         pse.cswitch_vol   = -1;
2318                         pse.cswitch_invol = -1;
2319
2320                         ps_list_add (cmdline, cargs, &pse);
2321                 } /* for (i = 0 .. nprocs) */
2322
2323                 if (nprocs < MAXPROCENTRY)
2324                         break;
2325         } /* while (getprocs64() > 0) */
2326         ps_submit_state ("running",  running);
2327         ps_submit_state ("sleeping", sleeping);
2328         ps_submit_state ("zombies",  zombies);
2329         ps_submit_state ("stopped",  stopped);
2330         ps_submit_state ("paging",   paging);
2331         ps_submit_state ("blocked",  blocked);
2332
2333         for (ps = list_head_g; ps != NULL; ps = ps->next)
2334                 ps_submit_proc_list (ps);
2335 /* #endif HAVE_PROCINFO_H */
2336
2337 #elif KERNEL_SOLARIS
2338         /*
2339          * The Solaris section adds a few more process states and removes some
2340          * process states compared to linux. Most notably there is no "PAGING"
2341          * and "BLOCKED" state for a process.  The rest is similar to the linux
2342          * code.
2343          */
2344         int running = 0;
2345         int sleeping = 0;
2346         int zombies = 0;
2347         int stopped = 0;
2348         int detached = 0;
2349         int daemon = 0;
2350         int system = 0;
2351         int orphan = 0;
2352
2353         struct dirent *ent;
2354         DIR *proc;
2355
2356         int status;
2357         procstat_t *ps_ptr;
2358         char state;
2359
2360         char cmdline[PRARGSZ];
2361
2362         ps_list_reset ();
2363
2364         proc = opendir ("/proc");
2365         if (proc == NULL)
2366                 return (-1);
2367
2368         while ((ent = readdir(proc)) != NULL)
2369         {
2370                 long pid;
2371                 struct procstat ps;
2372                 procstat_entry_t pse;
2373                 char *endptr;
2374
2375                 if (!isdigit ((int) ent->d_name[0]))
2376                         continue;
2377
2378                 pid = strtol (ent->d_name, &endptr, 10);
2379                 if (*endptr != 0) /* value didn't completely parse as a number */
2380                         continue;
2381
2382                 status = ps_read_process (pid, &ps, &state);
2383                 if (status != 0)
2384                 {
2385                         DEBUG("ps_read_process failed: %i", status);
2386                         continue;
2387                 }
2388
2389                 memset (&pse, 0, sizeof (pse));
2390                 pse.id = pid;
2391                 pse.age = 0;
2392
2393                 pse.num_proc   = ps.num_proc;
2394                 pse.num_lwp    = ps.num_lwp;
2395                 pse.vmem_size  = ps.vmem_size;
2396                 pse.vmem_rss   = ps.vmem_rss;
2397                 pse.vmem_data  = ps.vmem_data;
2398                 pse.vmem_code  = ps.vmem_code;
2399                 pse.stack_size = ps.stack_size;
2400
2401                 pse.vmem_minflt = 0;
2402                 pse.vmem_minflt_counter = ps.vmem_minflt_counter;
2403                 pse.vmem_majflt = 0;
2404                 pse.vmem_majflt_counter = ps.vmem_majflt_counter;
2405
2406                 pse.cpu_user = 0;
2407                 pse.cpu_user_counter = ps.cpu_user_counter;
2408                 pse.cpu_system = 0;
2409                 pse.cpu_system_counter = ps.cpu_system_counter;
2410
2411                 pse.io_rchar = ps.io_rchar;
2412                 pse.io_wchar = ps.io_wchar;
2413                 pse.io_syscr = ps.io_syscr;
2414                 pse.io_syscw = ps.io_syscw;
2415
2416                 pse.cswitch_vol = -1;
2417                 pse.cswitch_invol = -1;
2418
2419                 switch (state)
2420                 {
2421                         case 'R': running++;  break;
2422                         case 'S': sleeping++; break;
2423                         case 'E': detached++; break;
2424                         case 'Z': zombies++;  break;
2425                         case 'T': stopped++;  break;
2426                         case 'A': daemon++;   break;
2427                         case 'Y': system++;   break;
2428                         case 'O': orphan++;   break;
2429                 }
2430
2431
2432                 ps_list_add (ps.name,
2433                                 ps_get_cmdline (pid, ps.name, cmdline, sizeof (cmdline)),
2434                                 &pse);
2435         } /* while(readdir) */
2436         closedir (proc);
2437
2438         ps_submit_state ("running",  running);
2439         ps_submit_state ("sleeping", sleeping);
2440         ps_submit_state ("zombies",  zombies);
2441         ps_submit_state ("stopped",  stopped);
2442         ps_submit_state ("detached", detached);
2443         ps_submit_state ("daemon",   daemon);
2444         ps_submit_state ("system",   system);
2445         ps_submit_state ("orphan",   orphan);
2446
2447         for (ps_ptr = list_head_g; ps_ptr != NULL; ps_ptr = ps_ptr->next)
2448                 ps_submit_proc_list (ps_ptr);
2449
2450         read_fork_rate();
2451 #endif /* KERNEL_SOLARIS */
2452
2453         return (0);
2454 } /* int ps_read */
2455
2456 void module_register (void)
2457 {
2458         plugin_register_complex_config ("processes", ps_config);
2459         plugin_register_init ("processes", ps_init);
2460         plugin_register_read ("processes", ps_read);
2461 } /* void module_register */