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 verplant.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
  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 */
 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 <dirent.h>
 132 /* #endif KERNEL_SOLARIS */
 133
 134 #else
 135 # error "No applicable input method."
 136 #endif
 137
 138 #if HAVE_REGEX_H
 139 # include <regex.h>
 140 #endif
 141
 142 #if HAVE_KSTAT_H
 143 # include <kstat.h>
 144 #endif
 145
 146 #ifndef ARG_MAX
 147 #  define ARG_MAX 4096
 148 #endif
 149
 150 typedef struct procstat_entry_s
 151 {
 152         unsigned long id;
 153         unsigned long age;
 154
 155         unsigned long num_proc;
 156         unsigned long num_lwp;
 157         unsigned long vmem_size;
 158         unsigned long vmem_rss;
 159         unsigned long vmem_data;
 160         unsigned long vmem_code;
 161         unsigned long stack_size;
 162
 163         unsigned long vmem_minflt;
 164         unsigned long vmem_majflt;
 165         derive_t      vmem_minflt_counter;
 166         derive_t      vmem_majflt_counter;
 167
 168         unsigned long cpu_user;
 169         unsigned long cpu_system;
 170         derive_t      cpu_user_counter;
 171         derive_t      cpu_system_counter;
 172
 173         /* io data */
 174         derive_t io_rchar;
 175         derive_t io_wchar;
 176         derive_t io_syscr;
 177         derive_t io_syscw;
 178
 179         struct procstat_entry_s *next;
 180 } procstat_entry_t;
 181
 182 #define PROCSTAT_NAME_LEN 256
 183 typedef struct procstat
 184 {
 185         char          name[PROCSTAT_NAME_LEN];
 186 #if HAVE_REGEX_H
 187         regex_t *re;
 188 #endif
 189
 190         unsigned long num_proc;
 191         unsigned long num_lwp;
 192         unsigned long vmem_size;
 193         unsigned long vmem_rss;
 194         unsigned long vmem_data;
 195         unsigned long vmem_code;
 196         unsigned long stack_size;
 197
 198         derive_t vmem_minflt_counter;
 199         derive_t vmem_majflt_counter;
 200
 201         derive_t cpu_user_counter;
 202         derive_t cpu_system_counter;
 203
 204         /* io data */
 205         derive_t io_rchar;
 206         derive_t io_wchar;
 207         derive_t io_syscr;
 208         derive_t io_syscw;
 209
 210         struct procstat   *next;
 211         struct procstat_entry_s *instances;
 212 } procstat_t;
 213
 214 static procstat_t *list_head_g = NULL;
 215
 216 #if HAVE_THREAD_INFO
 217 static mach_port_t port_host_self;
 218 static mach_port_t port_task_self;
 219
 220 static processor_set_name_array_t pset_list;
 221 static mach_msg_type_number_t     pset_list_len;
 222 /* #endif HAVE_THREAD_INFO */
 223
 224 #elif KERNEL_LINUX
 225 static long pagesize_g;
 226 /* #endif KERNEL_LINUX */
 227
 228 #elif HAVE_LIBKVM_GETPROCS && HAVE_STRUCT_KINFO_PROC_FREEBSD
 229 static int pagesize;
 230 /* #endif HAVE_LIBKVM_GETPROCS && HAVE_STRUCT_KINFO_PROC_FREEBSD */
 231
 232 #elif HAVE_PROCINFO_H
 233 static  struct procentry64 procentry[MAXPROCENTRY];
 234 static  struct thrdentry64 thrdentry[MAXTHRDENTRY];
 235 static int pagesize;
 236
 237 #ifndef _AIXVERSION_610
 238 int     getprocs64 (void *procsinfo, int sizproc, void *fdsinfo, int sizfd, pid_t *index, int count);
 239 int     getthrds64( pid_t, void *, int, tid64_t *, int );
 240 #endif
 241 int getargs (void *processBuffer, int bufferLen, char *argsBuffer, int argsLen);
 242 #endif /* HAVE_PROCINFO_H */
 243
 244 /* put name of process from config to list_head_g tree
 245  * list_head_g is a list of 'procstat_t' structs with
 246  * processes names we want to watch */
 247 static void ps_list_register (const char *name, const char *regexp)
 248 {
 249         procstat_t *new;
 250         procstat_t *ptr;
 251         int status;
 252
 253         new = (procstat_t *) malloc (sizeof (procstat_t));
 254         if (new == NULL)
 255         {
 256                 ERROR ("processes plugin: ps_list_register: malloc failed.");
 257                 return;
 258         }
 259         memset (new, 0, sizeof (procstat_t));
 260         sstrncpy (new->name, name, sizeof (new->name));
 261
 262 #if HAVE_REGEX_H
 263         if (regexp != NULL)
 264         {
 265                 DEBUG ("ProcessMatch: adding \"%s\" as criteria to process %s.", regexp, name);
 266                 new->re = (regex_t *) malloc (sizeof (regex_t));
 267                 if (new->re == NULL)
 268                 {
 269                         ERROR ("processes plugin: ps_list_register: malloc failed.");
 270                         sfree (new);
 271                         return;
 272                 }
 273
 274                 status = regcomp (new->re, regexp, REG_EXTENDED | REG_NOSUB);
 275                 if (status != 0)
 276                 {
 277                         DEBUG ("ProcessMatch: compiling the regular expression \"%s\" failed.", regexp);
 278                         sfree(new->re);
 279                         sfree(new);
 280                         return;
 281                 }
 282         }
 283 #else
 284         if (regexp != NULL)
 285         {
 286                 ERROR ("processes plugin: ps_list_register: "
 287                                 "Regular expression \"%s\" found in config "
 288                                 "file, but support for regular expressions "
 289                                 "has been disabled at compile time.",
 290                                 regexp);
 291                 sfree (new);
 292                 return;
 293         }
 294 #endif
 295
 296         for (ptr = list_head_g; ptr != NULL; ptr = ptr->next)
 297         {
 298                 if (strcmp (ptr->name, name) == 0)
 299                 {
 300                         WARNING ("processes plugin: You have configured more "
 301                                         "than one `Process' or "
 302                                         "`ProcessMatch' with the same name. "
 303                                         "All but the first setting will be "
 304                                         "ignored.");
 305 #if HAVE_REGEX_H
 306                         sfree (new->re);
 307 #endif
 308                         sfree (new);
 309                         return;
 310                 }
 311
 312                 if (ptr->next == NULL)
 313                         break;
 314         }
 315
 316         if (ptr == NULL)
 317                 list_head_g = new;
 318         else
 319                 ptr->next = new;
 320 } /* void ps_list_register */
 321
 322 /* try to match name against entry, returns 1 if success */
 323 static int ps_list_match (const char *name, const char *cmdline, procstat_t *ps)
 324 {
 325 #if HAVE_REGEX_H
 326         if (ps->re != NULL)
 327         {
 328                 int status;
 329                 const char *str;
 330
 331                 str = cmdline;
 332                 if ((str == NULL) || (str[0] == 0))
 333                         str = name;
 334
 335                 assert (str != NULL);
 336
 337                 status = regexec (ps->re, str,
 338                                 /* nmatch = */ 0,
 339                                 /* pmatch = */ NULL,
 340                                 /* eflags = */ 0);
 341                 if (status == 0)
 342                         return (1);
 343         }
 344         else
 345 #endif
 346         if (strcmp (ps->name, name) == 0)
 347                 return (1);
 348
 349         return (0);
 350 } /* int ps_list_match */
 351
 352 /* add process entry to 'instances' of process 'name' (or refresh it) */
 353 static void ps_list_add (const char *name, const char *cmdline, procstat_entry_t *entry)
 354 {
 355         procstat_t *ps;
 356         procstat_entry_t *pse;
 357
 358         if (entry->id == 0)
 359                 return;
 360
 361         for (ps = list_head_g; ps != NULL; ps = ps->next)
 362         {
 363                 if ((ps_list_match (name, cmdline, ps)) == 0)
 364                         continue;
 365
 366                 for (pse = ps->instances; pse != NULL; pse = pse->next)
 367                         if ((pse->id == entry->id) || (pse->next == NULL))
 368                                 break;
 369
 370                 if ((pse == NULL) || (pse->id != entry->id))
 371                 {
 372                         procstat_entry_t *new;
 373
 374                         new = (procstat_entry_t *) malloc (sizeof (procstat_entry_t));
 375                         if (new == NULL)
 376                                 return;
 377                         memset (new, 0, sizeof (procstat_entry_t));
 378                         new->id = entry->id;
 379
 380                         if (pse == NULL)
 381                                 ps->instances = new;
 382                         else
 383                                 pse->next = new;
 384
 385                         pse = new;
 386                 }
 387
 388                 pse->age = 0;
 389                 pse->num_proc   = entry->num_proc;
 390                 pse->num_lwp    = entry->num_lwp;
 391                 pse->vmem_size  = entry->vmem_size;
 392                 pse->vmem_rss   = entry->vmem_rss;
 393                 pse->vmem_data  = entry->vmem_data;
 394                 pse->vmem_code  = entry->vmem_code;
 395                 pse->stack_size = entry->stack_size;
 396                 pse->io_rchar   = entry->io_rchar;
 397                 pse->io_wchar   = entry->io_wchar;
 398                 pse->io_syscr   = entry->io_syscr;
 399                 pse->io_syscw   = entry->io_syscw;
 400
 401                 ps->num_proc   += pse->num_proc;
 402                 ps->num_lwp    += pse->num_lwp;
 403                 ps->vmem_size  += pse->vmem_size;
 404                 ps->vmem_rss   += pse->vmem_rss;
 405                 ps->vmem_data  += pse->vmem_data;
 406                 ps->vmem_code  += pse->vmem_code;
 407                 ps->stack_size += pse->stack_size;
 408
 409                 ps->io_rchar   += ((pse->io_rchar == -1)?0:pse->io_rchar);
 410                 ps->io_wchar   += ((pse->io_wchar == -1)?0:pse->io_wchar);
 411                 ps->io_syscr   += ((pse->io_syscr == -1)?0:pse->io_syscr);
 412                 ps->io_syscw   += ((pse->io_syscw == -1)?0:pse->io_syscw);
 413
 414                 if ((entry->vmem_minflt_counter == 0)
 415                                 && (entry->vmem_majflt_counter == 0))
 416                 {
 417                         pse->vmem_minflt_counter += entry->vmem_minflt;
 418                         pse->vmem_minflt = entry->vmem_minflt;
 419
 420                         pse->vmem_majflt_counter += entry->vmem_majflt;
 421                         pse->vmem_majflt = entry->vmem_majflt;
 422                 }
 423                 else
 424                 {
 425                         if (entry->vmem_minflt_counter < pse->vmem_minflt_counter)
 426                         {
 427                                 pse->vmem_minflt = entry->vmem_minflt_counter
 428                                         + (ULONG_MAX - pse->vmem_minflt_counter);
 429                         }
 430                         else
 431                         {
 432                                 pse->vmem_minflt = entry->vmem_minflt_counter - pse->vmem_minflt_counter;
 433                         }
 434                         pse->vmem_minflt_counter = entry->vmem_minflt_counter;
 435
 436                         if (entry->vmem_majflt_counter < pse->vmem_majflt_counter)
 437                         {
 438                                 pse->vmem_majflt = entry->vmem_majflt_counter
 439                                         + (ULONG_MAX - pse->vmem_majflt_counter);
 440                         }
 441                         else
 442                         {
 443                                 pse->vmem_majflt = entry->vmem_majflt_counter - pse->vmem_majflt_counter;
 444                         }
 445                         pse->vmem_majflt_counter = entry->vmem_majflt_counter;
 446                 }
 447
 448                 ps->vmem_minflt_counter += pse->vmem_minflt;
 449                 ps->vmem_majflt_counter += pse->vmem_majflt;
 450
 451                 if ((entry->cpu_user_counter == 0)
 452                                 && (entry->cpu_system_counter == 0))
 453                 {
 454                         pse->cpu_user_counter += entry->cpu_user;
 455                         pse->cpu_user = entry->cpu_user;
 456
 457                         pse->cpu_system_counter += entry->cpu_system;
 458                         pse->cpu_system = entry->cpu_system;
 459                 }
 460                 else
 461                 {
 462                         if (entry->cpu_user_counter < pse->cpu_user_counter)
 463                         {
 464                                 pse->cpu_user = entry->cpu_user_counter
 465                                         + (ULONG_MAX - pse->cpu_user_counter);
 466                         }
 467                         else
 468                         {
 469                                 pse->cpu_user = entry->cpu_user_counter - pse->cpu_user_counter;
 470                         }
 471                         pse->cpu_user_counter = entry->cpu_user_counter;
 472
 473                         if (entry->cpu_system_counter < pse->cpu_system_counter)
 474                         {
 475                                 pse->cpu_system = entry->cpu_system_counter
 476                                         + (ULONG_MAX - pse->cpu_system_counter);
 477                         }
 478                         else
 479                         {
 480                                 pse->cpu_system = entry->cpu_system_counter - pse->cpu_system_counter;
 481                         }
 482                         pse->cpu_system_counter = entry->cpu_system_counter;
 483                 }
 484
 485                 ps->cpu_user_counter   += pse->cpu_user;
 486                 ps->cpu_system_counter += pse->cpu_system;
 487         }
 488 }
 489
 490 /* remove old entries from instances of processes in list_head_g */
 491 static void ps_list_reset (void)
 492 {
 493         procstat_t *ps;
 494         procstat_entry_t *pse;
 495         procstat_entry_t *pse_prev;
 496
 497         for (ps = list_head_g; ps != NULL; ps = ps->next)
 498         {
 499                 ps->num_proc    = 0;
 500                 ps->num_lwp     = 0;
 501                 ps->vmem_size   = 0;
 502                 ps->vmem_rss    = 0;
 503                 ps->vmem_data   = 0;
 504                 ps->vmem_code   = 0;
 505                 ps->stack_size  = 0;
 506                 ps->io_rchar = -1;
 507                 ps->io_wchar = -1;
 508                 ps->io_syscr = -1;
 509                 ps->io_syscw = -1;
 510
 511                 pse_prev = NULL;
 512                 pse = ps->instances;
 513                 while (pse != NULL)
 514                 {
 515                         if (pse->age > 10)
 516                         {
 517                                 DEBUG ("Removing this procstat entry cause it's too old: "
 518                                                 "id = %lu; name = %s;",
 519                                                 pse->id, ps->name);
 520
 521                                 if (pse_prev == NULL)
 522                                 {
 523                                         ps->instances = pse->next;
 524                                         free (pse);
 525                                         pse = ps->instances;
 526                                 }
 527                                 else
 528                                 {
 529                                         pse_prev->next = pse->next;
 530                                         free (pse);
 531                                         pse = pse_prev->next;
 532                                 }
 533                         }
 534                         else
 535                         {
 536                                 pse->age++;
 537                                 pse_prev = pse;
 538                                 pse = pse->next;
 539                         }
 540                 } /* while (pse != NULL) */
 541         } /* for (ps = list_head_g; ps != NULL; ps = ps->next) */
 542 }
 543
 544 /* put all pre-defined 'Process' names from config to list_head_g tree */
 545 static int ps_config (oconfig_item_t *ci)
 546 {
 547         int i;
 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                         ps_list_register (c->values[0].value.string, NULL);
 570                 }
 571                 else if (strcasecmp (c->key, "ProcessMatch") == 0)
 572                 {
 573                         if ((c->values_num != 2)
 574                                         || (OCONFIG_TYPE_STRING != c->values[0].type)
 575                                         || (OCONFIG_TYPE_STRING != c->values[1].type))
 576                         {
 577                                 ERROR ("processes plugin: `ProcessMatch' needs exactly "
 578                                                 "two string arguments (got %i).",
 579                                                 c->values_num);
 580                                 continue;
 581                         }
 582
 583                         if (c->children_num != 0) {
 584                                 WARNING ("processes plugin: the `ProcessMatch' config option "
 585                                                 "does not expect any child elements -- ignoring "
 586                                                 "content (%i elements) of the <ProcessMatch '%s' '%s'> "
 587                                                 "block.", c->children_num, c->values[0].value.string,
 588                                                 c->values[1].value.string);
 589                         }
 590
 591                         ps_list_register (c->values[0].value.string,
 592                                         c->values[1].value.string);
 593                 }
 594                 else
 595                 {
 596                         ERROR ("processes plugin: The `%s' configuration option is not "
 597                                         "understood and will be ignored.", c->key);
 598                         continue;
 599                 }
 600         }
 601
 602         return (0);
 603 }
 604
 605 static int ps_init (void)
 606 {
 607 #if HAVE_THREAD_INFO
 608         kern_return_t status;
 609
 610         port_host_self = mach_host_self ();
 611         port_task_self = mach_task_self ();
 612
 613         if (pset_list != NULL)
 614         {
 615                 vm_deallocate (port_task_self,
 616                                 (vm_address_t) pset_list,
 617                                 pset_list_len * sizeof (processor_set_t));
 618                 pset_list = NULL;
 619                 pset_list_len = 0;
 620         }
 621
 622         if ((status = host_processor_sets (port_host_self,
 623                                         &pset_list,
 624                                         &pset_list_len)) != KERN_SUCCESS)
 625         {
 626                 ERROR ("host_processor_sets failed: %s\n",
 627                                 mach_error_string (status));
 628                 pset_list = NULL;
 629                 pset_list_len = 0;
 630                 return (-1);
 631         }
 632 /* #endif HAVE_THREAD_INFO */
 633
 634 #elif KERNEL_LINUX
 635         pagesize_g = sysconf(_SC_PAGESIZE);
 636         DEBUG ("pagesize_g = %li; CONFIG_HZ = %i;",
 637                         pagesize_g, CONFIG_HZ);
 638 /* #endif KERNEL_LINUX */
 639
 640 #elif HAVE_LIBKVM_GETPROCS && HAVE_STRUCT_KINFO_PROC_FREEBSD
 641         pagesize = getpagesize();
 642 /* #endif HAVE_LIBKVM_GETPROCS && HAVE_STRUCT_KINFO_PROC_FREEBSD */
 643
 644 #elif HAVE_PROCINFO_H
 645         pagesize = getpagesize();
 646 #endif /* HAVE_PROCINFO_H */
 647
 648         return (0);
 649 } /* int ps_init */
 650
 651 /* submit global state (e.g.: qty of zombies, running, etc..) */
 652 static void ps_submit_state (const char *state, double value)
 653 {
 654         value_t values[1];
 655         value_list_t vl = VALUE_LIST_INIT;
 656
 657         values[0].gauge = value;
 658
 659         vl.values = values;
 660         vl.values_len = 1;
 661         sstrncpy (vl.host, hostname_g, sizeof (vl.host));
 662         sstrncpy (vl.plugin, "processes", sizeof (vl.plugin));
 663         sstrncpy (vl.plugin_instance, "", sizeof (vl.plugin_instance));
 664         sstrncpy (vl.type, "ps_state", sizeof (vl.type));
 665         sstrncpy (vl.type_instance, state, sizeof (vl.type_instance));
 666
 667         plugin_dispatch_values (&vl);
 668 }
 669
 670 /* submit info about specific process (e.g.: memory taken, cpu usage, etc..) */
 671 static void ps_submit_proc_list (procstat_t *ps)
 672 {
 673         value_t values[2];
 674         value_list_t vl = VALUE_LIST_INIT;
 675
 676         vl.values = values;
 677         vl.values_len = 2;
 678         sstrncpy (vl.host, hostname_g, sizeof (vl.host));
 679         sstrncpy (vl.plugin, "processes", sizeof (vl.plugin));
 680         sstrncpy (vl.plugin_instance, ps->name, sizeof (vl.plugin_instance));
 681
 682         sstrncpy (vl.type, "ps_vm", sizeof (vl.type));
 683         vl.values[0].gauge = ps->vmem_size;
 684         vl.values_len = 1;
 685         plugin_dispatch_values (&vl);
 686
 687         sstrncpy (vl.type, "ps_rss", sizeof (vl.type));
 688         vl.values[0].gauge = ps->vmem_rss;
 689         vl.values_len = 1;
 690         plugin_dispatch_values (&vl);
 691
 692         sstrncpy (vl.type, "ps_data", sizeof (vl.type));
 693         vl.values[0].gauge = ps->vmem_data;
 694         vl.values_len = 1;
 695         plugin_dispatch_values (&vl);
 696
 697         sstrncpy (vl.type, "ps_code", sizeof (vl.type));
 698         vl.values[0].gauge = ps->vmem_code;
 699         vl.values_len = 1;
 700         plugin_dispatch_values (&vl);
 701
 702         sstrncpy (vl.type, "ps_stacksize", sizeof (vl.type));
 703         vl.values[0].gauge = ps->stack_size;
 704         vl.values_len = 1;
 705         plugin_dispatch_values (&vl);
 706
 707         sstrncpy (vl.type, "ps_cputime", sizeof (vl.type));
 708         vl.values[0].derive = ps->cpu_user_counter;
 709         vl.values[1].derive = ps->cpu_system_counter;
 710         vl.values_len = 2;
 711         plugin_dispatch_values (&vl);
 712
 713         sstrncpy (vl.type, "ps_count", sizeof (vl.type));
 714         vl.values[0].gauge = ps->num_proc;
 715         vl.values[1].gauge = ps->num_lwp;
 716         vl.values_len = 2;
 717         plugin_dispatch_values (&vl);
 718
 719         sstrncpy (vl.type, "ps_pagefaults", sizeof (vl.type));
 720         vl.values[0].derive = ps->vmem_minflt_counter;
 721         vl.values[1].derive = ps->vmem_majflt_counter;
 722         vl.values_len = 2;
 723         plugin_dispatch_values (&vl);
 724
 725         if ( (ps->io_rchar != -1) && (ps->io_wchar != -1) )
 726         {
 727                 sstrncpy (vl.type, "ps_disk_octets", sizeof (vl.type));
 728                 vl.values[0].derive = ps->io_rchar;
 729                 vl.values[1].derive = ps->io_wchar;
 730                 vl.values_len = 2;
 731                 plugin_dispatch_values (&vl);
 732         }
 733
 734         if ( (ps->io_syscr != -1) && (ps->io_syscw != -1) )
 735         {
 736                 sstrncpy (vl.type, "ps_disk_ops", sizeof (vl.type));
 737                 vl.values[0].derive = ps->io_syscr;
 738                 vl.values[1].derive = ps->io_syscw;
 739                 vl.values_len = 2;
 740                 plugin_dispatch_values (&vl);
 741         }
 742
 743         DEBUG ("name = %s; num_proc = %lu; num_lwp = %lu; "
 744                         "vmem_size = %lu; vmem_rss = %lu; vmem_data = %lu; "
 745                         "vmem_code = %lu; "
 746                         "vmem_minflt_counter = %"PRIi64"; vmem_majflt_counter = %"PRIi64"; "
 747                         "cpu_user_counter = %"PRIi64"; cpu_system_counter = %"PRIi64"; "
 748                         "io_rchar = %"PRIi64"; io_wchar = %"PRIi64"; "
 749                         "io_syscr = %"PRIi64"; io_syscw = %"PRIi64";",
 750                         ps->name, ps->num_proc, ps->num_lwp,
 751                         ps->vmem_size, ps->vmem_rss,
 752                         ps->vmem_data, ps->vmem_code,
 753                         ps->vmem_minflt_counter, ps->vmem_majflt_counter,
 754                         ps->cpu_user_counter, ps->cpu_system_counter,
 755                         ps->io_rchar, ps->io_wchar, ps->io_syscr, ps->io_syscw);
 756 } /* void ps_submit_proc_list */
 757
 758 #if KERNEL_LINUX || KERNEL_SOLARIS
 759 static void ps_submit_fork_rate (derive_t value)
 760 {
 761         value_t values[1];
 762         value_list_t vl = VALUE_LIST_INIT;
 763
 764         values[0].derive = value;
 765
 766         vl.values = values;
 767         vl.values_len = 1;
 768         sstrncpy(vl.host, hostname_g, sizeof (vl.host));
 769         sstrncpy(vl.plugin, "processes", sizeof (vl.plugin));
 770         sstrncpy(vl.plugin_instance, "", sizeof (vl.plugin_instance));
 771         sstrncpy(vl.type, "fork_rate", sizeof (vl.type));
 772         sstrncpy(vl.type_instance, "", sizeof (vl.type_instance));
 773
 774         plugin_dispatch_values(&vl);
 775 }
 776 #endif /* KERNEL_LINUX || KERNEL_SOLARIS*/
 777
 778 /* ------- additional functions for KERNEL_LINUX/HAVE_THREAD_INFO ------- */
 779 #if KERNEL_LINUX
 780 static int ps_read_tasks (int pid)
 781 {
 782         char           dirname[64];
 783         DIR           *dh;
 784         struct dirent *ent;
 785         int count = 0;
 786
 787         ssnprintf (dirname, sizeof (dirname), "/proc/%i/task", pid);
 788
 789         if ((dh = opendir (dirname)) == NULL)
 790         {
 791                 DEBUG ("Failed to open directory `%s'", dirname);
 792                 return (-1);
 793         }
 794
 795         while ((ent = readdir (dh)) != NULL)
 796         {
 797                 if (!isdigit ((int) ent->d_name[0]))
 798                         continue;
 799                 else
 800                         count++;
 801         }
 802         closedir (dh);
 803
 804         return ((count >= 1) ? count : 1);
 805 } /* int *ps_read_tasks */
 806
 807 /* Read advanced virtual memory data from /proc/pid/status */
 808 static procstat_t *ps_read_vmem (int pid, procstat_t *ps)
 809 {
 810         FILE *fh;
 811         char buffer[1024];
 812         char filename[64];
 813         unsigned long long lib = 0;
 814         unsigned long long exe = 0;
 815         unsigned long long data = 0;
 816         char *fields[8];
 817         int numfields;
 818
 819         ssnprintf (filename, sizeof (filename), "/proc/%i/status", pid);
 820         if ((fh = fopen (filename, "r")) == NULL)
 821                 return (NULL);
 822
 823         while (fgets (buffer, sizeof(buffer), fh) != NULL)
 824         {
 825                 long long tmp;
 826                 char *endptr;
 827
 828                 if (strncmp (buffer, "Vm", 2) != 0)
 829                         continue;
 830
 831                 numfields = strsplit (buffer, fields,
 832                                 STATIC_ARRAY_SIZE (fields));
 833
 834                 if (numfields < 2)
 835                         continue;
 836
 837                 errno = 0;
 838                 endptr = NULL;
 839                 tmp = strtoll (fields[1], &endptr, /* base = */ 10);
 840                 if ((errno == 0) && (endptr != fields[1]))
 841                 {
 842                         if (strncmp (buffer, "VmData", 6) == 0)
 843                         {
 844                                 data = tmp;
 845                         }
 846                         else if (strncmp (buffer, "VmLib", 5) == 0)
 847                         {
 848                                 lib = tmp;
 849                         }
 850                         else if  (strncmp(buffer, "VmExe", 5) == 0)
 851                         {
 852                                 exe = tmp;
 853                         }
 854                 }
 855         } /* while (fgets) */
 856
 857         if (fclose (fh))
 858         {
 859                 char errbuf[1024];
 860                 WARNING ("processes: fclose: %s",
 861                                 sstrerror (errno, errbuf, sizeof (errbuf)));
 862         }
 863
 864         ps->vmem_data = data * 1024;
 865         ps->vmem_code = (exe + lib) * 1024;
 866
 867         return (ps);
 868 } /* procstat_t *ps_read_vmem */
 869
 870 static procstat_t *ps_read_io (int pid, procstat_t *ps)
 871 {
 872         FILE *fh;
 873         char buffer[1024];
 874         char filename[64];
 875
 876         char *fields[8];
 877         int numfields;
 878
 879         ssnprintf (filename, sizeof (filename), "/proc/%i/io", pid);
 880         if ((fh = fopen (filename, "r")) == NULL)
 881                 return (NULL);
 882
 883         while (fgets (buffer, sizeof (buffer), fh) != NULL)
 884         {
 885                 derive_t *val = NULL;
 886                 long long tmp;
 887                 char *endptr;
 888
 889                 if (strncasecmp (buffer, "rchar:", 6) == 0)
 890                         val = &(ps->io_rchar);
 891                 else if (strncasecmp (buffer, "wchar:", 6) == 0)
 892                         val = &(ps->io_wchar);
 893                 else if (strncasecmp (buffer, "syscr:", 6) == 0)
 894                         val = &(ps->io_syscr);
 895                 else if (strncasecmp (buffer, "syscw:", 6) == 0)
 896                         val = &(ps->io_syscw);
 897                 else
 898                         continue;
 899
 900                 numfields = strsplit (buffer, fields,
 901                                 STATIC_ARRAY_SIZE (fields));
 902
 903                 if (numfields < 2)
 904                         continue;
 905
 906                 errno = 0;
 907                 endptr = NULL;
 908                 tmp = strtoll (fields[1], &endptr, /* base = */ 10);
 909                 if ((errno != 0) || (endptr == fields[1]))
 910                         *val = -1;
 911                 else
 912                         *val = (derive_t) tmp;
 913         } /* while (fgets) */
 914
 915         if (fclose (fh))
 916         {
 917                 char errbuf[1024];
 918                 WARNING ("processes: fclose: %s",
 919                                 sstrerror (errno, errbuf, sizeof (errbuf)));
 920         }
 921
 922         return (ps);
 923 } /* procstat_t *ps_read_io */
 924
 925 int ps_read_process (int pid, procstat_t *ps, char *state)
 926 {
 927         char  filename[64];
 928         char  buffer[1024];
 929
 930         char *fields[64];
 931         char  fields_len;
 932
 933         int   buffer_len;
 934
 935         char *buffer_ptr;
 936         size_t name_start_pos;
 937         size_t name_end_pos;
 938         size_t name_len;
 939
 940         derive_t cpu_user_counter;
 941         derive_t cpu_system_counter;
 942         long long unsigned vmem_size;
 943         long long unsigned vmem_rss;
 944         long long unsigned stack_size;
 945
 946         memset (ps, 0, sizeof (procstat_t));
 947
 948         ssnprintf (filename, sizeof (filename), "/proc/%i/stat", pid);
 949
 950         buffer_len = read_file_contents (filename,
 951                         buffer, sizeof(buffer) - 1);
 952         if (buffer_len <= 0)
 953                 return (-1);
 954         buffer[buffer_len] = 0;
 955
 956         /* The name of the process is enclosed in parens. Since the name can
 957          * contain parens itself, spaces, numbers and pretty much everything
 958          * else, use these to determine the process name. We don't use
 959          * strchr(3) and strrchr(3) to avoid pointer arithmetic which would
 960          * otherwise be required to determine name_len. */
 961         name_start_pos = 0;
 962         while ((buffer[name_start_pos] != '(')
 963                         && (name_start_pos < buffer_len))
 964                 name_start_pos++;
 965
 966         name_end_pos = buffer_len;
 967         while ((buffer[name_end_pos] != ')')
 968                         && (name_end_pos > 0))
 969                 name_end_pos--;
 970
 971         /* Either '(' or ')' is not found or they are in the wrong order.
 972          * Anyway, something weird that shouldn't happen ever. */
 973         if (name_start_pos >= name_end_pos)
 974         {
 975                 ERROR ("processes plugin: name_start_pos = %zu >= name_end_pos = %zu",
 976                                 name_start_pos, name_end_pos);
 977                 return (-1);
 978         }
 979
 980         name_len = (name_end_pos - name_start_pos) - 1;
 981         if (name_len >= sizeof (ps->name))
 982                 name_len = sizeof (ps->name) - 1;
 983
 984         sstrncpy (ps->name, &buffer[name_start_pos + 1], name_len + 1);
 985
 986         if ((buffer_len - name_end_pos) < 2)
 987                 return (-1);
 988         buffer_ptr = &buffer[name_end_pos + 2];
 989
 990         fields_len = strsplit (buffer_ptr, fields, STATIC_ARRAY_SIZE (fields));
 991         if (fields_len < 22)
 992         {
 993                 DEBUG ("processes plugin: ps_read_process (pid = %i):"
 994                                 " `%s' has only %i fields..",
 995                                 (int) pid, filename, fields_len);
 996                 return (-1);
 997         }
 998
 999         *state = fields[0][0];
1000
1001         if (*state == 'Z')
1002         {
1003                 ps->num_lwp  = 0;
1004                 ps->num_proc = 0;
1005         }
1006         else
1007         {
1008                 if ( (ps->num_lwp = ps_read_tasks (pid)) == -1 )
1009                 {
1010                         /* returns -1 => kernel 2.4 */
1011                         ps->num_lwp = 1;
1012                 }
1013                 ps->num_proc = 1;
1014         }
1015
1016         /* Leave the rest at zero if this is only a zombi */
1017         if (ps->num_proc == 0)
1018         {
1019                 DEBUG ("processes plugin: This is only a zombie: pid = %i; "
1020                                 "name = %s;", pid, ps->name);
1021                 return (0);
1022         }
1023
1024         cpu_user_counter   = atoll (fields[11]);
1025         cpu_system_counter = atoll (fields[12]);
1026         vmem_size          = atoll (fields[20]);
1027         vmem_rss           = atoll (fields[21]);
1028         ps->vmem_minflt_counter = atol (fields[7]);
1029         ps->vmem_majflt_counter = atol (fields[9]);
1030
1031         {
1032                 unsigned long long stack_start = atoll (fields[25]);
1033                 unsigned long long stack_ptr   = atoll (fields[26]);
1034
1035                 stack_size = (stack_start > stack_ptr)
1036                         ? stack_start - stack_ptr
1037                         : stack_ptr - stack_start;
1038         }
1039
1040         /* Convert jiffies to useconds */
1041         cpu_user_counter   = cpu_user_counter   * 1000000 / CONFIG_HZ;
1042         cpu_system_counter = cpu_system_counter * 1000000 / CONFIG_HZ;
1043         vmem_rss = vmem_rss * pagesize_g;
1044
1045         if ( (ps_read_vmem(pid, ps)) == NULL)
1046         {
1047                 /* No VMem data */
1048                 ps->vmem_data = -1;
1049                 ps->vmem_code = -1;
1050                 DEBUG("ps_read_process: did not get vmem data for pid %i",pid);
1051         }
1052
1053         ps->cpu_user_counter = cpu_user_counter;
1054         ps->cpu_system_counter = cpu_system_counter;
1055         ps->vmem_size = (unsigned long) vmem_size;
1056         ps->vmem_rss = (unsigned long) vmem_rss;
1057         ps->stack_size = (unsigned long) stack_size;
1058
1059         if ( (ps_read_io (pid, ps)) == NULL)
1060         {
1061                 /* no io data */
1062                 ps->io_rchar = -1;
1063                 ps->io_wchar = -1;
1064                 ps->io_syscr = -1;
1065                 ps->io_syscw = -1;
1066
1067                 DEBUG("ps_read_process: not get io data for pid %i",pid);
1068         }
1069
1070         /* success */
1071         return (0);
1072 } /* int ps_read_process (...) */
1073
1074 static char *ps_get_cmdline (pid_t pid, char *name, char *buf, size_t buf_len)
1075 {
1076         char  *buf_ptr;
1077         size_t len;
1078
1079         char file[PATH_MAX];
1080         int  fd;
1081
1082         size_t n;
1083
1084         if ((pid < 1) || (NULL == buf) || (buf_len < 2))
1085                 return NULL;
1086
1087         ssnprintf (file, sizeof (file), "/proc/%u/cmdline",
1088                         (unsigned int) pid);
1089
1090         errno = 0;
1091         fd = open (file, O_RDONLY);
1092         if (fd < 0) {
1093                 char errbuf[4096];
1094                 /* ENOENT means the process exited while we were handling it.
1095                  * Don't complain about this, it only fills the logs. */
1096                 if (errno != ENOENT)
1097                         WARNING ("processes plugin: Failed to open `%s': %s.", file,
1098                                         sstrerror (errno, errbuf, sizeof (errbuf)));
1099                 return NULL;
1100         }
1101
1102         buf_ptr = buf;
1103         len     = buf_len;
1104
1105         n = 0;
1106
1107         while (42) {
1108                 ssize_t status;
1109
1110                 status = read (fd, (void *)buf_ptr, len);
1111
1112                 if (status < 0) {
1113                         char errbuf[1024];
1114
1115                         if ((EAGAIN == errno) || (EINTR == errno))
1116                                 continue;
1117
1118                         WARNING ("processes plugin: Failed to read from `%s': %s.", file,
1119                                         sstrerror (errno, errbuf, sizeof (errbuf)));
1120                         close (fd);
1121                         return NULL;
1122                 }
1123
1124                 n += status;
1125
1126                 if (status == 0)
1127                         break;
1128
1129                 buf_ptr += status;
1130                 len     -= status;
1131
1132                 if (len <= 0)
1133                         break;
1134         }
1135
1136         close (fd);
1137
1138         if (0 == n) {
1139                 /* cmdline not available; e.g. kernel thread, zombie */
1140                 if (NULL == name)
1141                         return NULL;
1142
1143                 ssnprintf (buf, buf_len, "[%s]", name);
1144                 return buf;
1145         }
1146
1147         assert (n <= buf_len);
1148
1149         if (n == buf_len)
1150                 --n;
1151         buf[n] = '\0';
1152
1153         --n;
1154         /* remove trailing whitespace */
1155         while ((n > 0) && (isspace (buf[n]) || ('\0' == buf[n]))) {
1156                 buf[n] = '\0';
1157                 --n;
1158         }
1159
1160         /* arguments are separated by '\0' in /proc/<pid>/cmdline */
1161         while (n > 0) {
1162                 if ('\0' == buf[n])
1163                         buf[n] = ' ';
1164                 --n;
1165         }
1166         return buf;
1167 } /* char *ps_get_cmdline (...) */
1168
1169 static int read_fork_rate ()
1170 {
1171         FILE *proc_stat;
1172         char buffer[1024];
1173         value_t value;
1174         _Bool value_valid = 0;
1175
1176         proc_stat = fopen ("/proc/stat", "r");
1177         if (proc_stat == NULL)
1178         {
1179                 char errbuf[1024];
1180                 ERROR ("processes plugin: fopen (/proc/stat) failed: %s",
1181                                 sstrerror (errno, errbuf, sizeof (errbuf)));
1182                 return (-1);
1183         }
1184
1185         while (fgets (buffer, sizeof (buffer), proc_stat) != NULL)
1186         {
1187                 int status;
1188                 char *fields[3];
1189                 int fields_num;
1190
1191                 fields_num = strsplit (buffer, fields,
1192                                 STATIC_ARRAY_SIZE (fields));
1193                 if (fields_num != 2)
1194                         continue;
1195
1196                 if (strcmp ("processes", fields[0]) != 0)
1197                         continue;
1198
1199                 status = parse_value (fields[1], &value, DS_TYPE_DERIVE);
1200                 if (status == 0)
1201                         value_valid = 1;
1202
1203                 break;
1204         }
1205         fclose(proc_stat);
1206
1207         if (!value_valid)
1208                 return (-1);
1209
1210         ps_submit_fork_rate (value.derive);
1211         return (0);
1212 }
1213 #endif /*KERNEL_LINUX */
1214
1215 #if KERNEL_SOLARIS
1216 static const char *ps_get_cmdline (long pid, /* {{{ */
1217                 char *buffer, size_t buffer_size)
1218 {
1219         char path[PATH_MAX];
1220         psinfo_t info;
1221         int status;
1222
1223         snprintf(path, sizeof (path), "/proc/%li/psinfo", pid);
1224
1225         status = read_file_contents (path, (void *) &info, sizeof (info));
1226         if (status != sizeof (info))
1227         {
1228                 ERROR ("processes plugin: Unexpected return value "
1229                                 "while reading \"%s\": "
1230                                 "Returned %i but expected %zu.",
1231                                 path, status, buffer_size);
1232                 return (NULL);
1233         }
1234
1235         info.pr_psargs[sizeof (info.pr_psargs) - 1] = 0;
1236         sstrncpy (buffer, info.pr_psargs, buffer_size);
1237
1238         return (buffer);
1239 } /* }}} int ps_get_cmdline */
1240
1241 /*
1242  * Reads process information on the Solaris OS. The information comes mainly from
1243  * /proc/PID/status, /proc/PID/psinfo and /proc/PID/usage
1244  * The values for input and ouput chars are calculated "by hand"
1245  * Added a few "solaris" specific process states as well
1246  */
1247 static int ps_read_process(long pid, procstat_t *ps, char *state)
1248 {
1249         char filename[64];
1250         char f_psinfo[64], f_usage[64];
1251         char *buffer;
1252
1253         pstatus_t *myStatus;
1254         psinfo_t *myInfo;
1255         prusage_t *myUsage;
1256
1257         snprintf(filename, sizeof (filename), "/proc/%li/status", pid);
1258         snprintf(f_psinfo, sizeof (f_psinfo), "/proc/%li/psinfo", pid);
1259         snprintf(f_usage, sizeof (f_usage), "/proc/%li/usage", pid);
1260
1261
1262         buffer = malloc(sizeof (pstatus_t));
1263         memset(buffer, 0, sizeof (pstatus_t));
1264         read_file_contents(filename, buffer, sizeof (pstatus_t));
1265         myStatus = (pstatus_t *) buffer;
1266
1267         buffer = malloc(sizeof (psinfo_t));
1268         memset(buffer, 0, sizeof(psinfo_t));
1269         read_file_contents(f_psinfo, buffer, sizeof (psinfo_t));
1270         myInfo = (psinfo_t *) buffer;
1271
1272         buffer = malloc(sizeof (prusage_t));
1273         memset(buffer, 0, sizeof(prusage_t));
1274         read_file_contents(f_usage, buffer, sizeof (prusage_t));
1275         myUsage = (prusage_t *) buffer;
1276
1277         sstrncpy(ps->name, myInfo->pr_fname, sizeof (myInfo->pr_fname));
1278         ps->num_lwp = myStatus->pr_nlwp;
1279         if (myInfo->pr_wstat != 0) {
1280                 ps->num_proc = 0;
1281                 ps->num_lwp = 0;
1282                 *state = (char) 'Z';
1283                 return (0);
1284         } else {
1285                 ps->num_proc = 1;
1286                 ps->num_lwp = myInfo->pr_nlwp;
1287         }
1288
1289         /*
1290          * Convert system time and user time from nanoseconds to microseconds
1291          * for compatibility with the linux module
1292          */
1293         ps->cpu_system_counter = myStatus -> pr_stime.tv_nsec / 1000;
1294         ps->cpu_user_counter = myStatus -> pr_utime.tv_nsec / 1000;
1295
1296         /*
1297          * Convert rssize from KB to bytes to be consistent w/ the linux module
1298          */
1299         ps->vmem_rss = myInfo->pr_rssize * 1024;
1300         ps->vmem_size = myInfo->pr_size * 1024;
1301         ps->vmem_minflt_counter = myUsage->pr_minf;
1302         ps->vmem_majflt_counter = myUsage->pr_majf;
1303
1304         /*
1305          * TODO: Data and code segment calculations for Solaris
1306          */
1307
1308         ps->vmem_data = -1;
1309         ps->vmem_code = -1;
1310         ps->stack_size = myStatus->pr_stksize;
1311
1312         /*
1313          * Calculating input/ouput chars
1314          * Formula used is total chars / total blocks => chars/block
1315          * then convert input/output blocks to chars
1316          */
1317         ulong_t tot_chars = myUsage->pr_ioch;
1318         ulong_t tot_blocks = myUsage->pr_inblk + myUsage->pr_oublk;
1319         ulong_t chars_per_block = 1;
1320         if (tot_blocks != 0)
1321                 chars_per_block = tot_chars / tot_blocks;
1322         ps->io_rchar = myUsage->pr_inblk * chars_per_block;
1323         ps->io_wchar = myUsage->pr_oublk * chars_per_block;
1324         ps->io_syscr = myUsage->pr_sysc;
1325         ps->io_syscw = myUsage->pr_sysc;
1326
1327
1328         /*
1329          * TODO: Find way of setting BLOCKED and PAGING status
1330          */
1331
1332         *state = (char) 'R';
1333         if (myStatus->pr_flags & PR_ASLEEP)
1334                 *state = (char) 'S';
1335         else if (myStatus->pr_flags & PR_STOPPED)
1336                 *state = (char) 'T';
1337         else if (myStatus->pr_flags & PR_DETACH)
1338                 *state = (char) 'E';
1339         else if (myStatus->pr_flags & PR_DAEMON)
1340                 *state = (char) 'A';
1341         else if (myStatus->pr_flags & PR_ISSYS)
1342                 *state = (char) 'Y';
1343         else if (myStatus->pr_flags & PR_ORPHAN)
1344                 *state = (char) 'O';
1345
1346         sfree(myStatus);
1347         sfree(myInfo);
1348         sfree(myUsage);
1349
1350         return (0);
1351 }
1352
1353 /*
1354  * Reads the number of threads created since the last reboot. On Solaris these
1355  * are retrieved from kstat (module cpu, name sys, class misc, stat nthreads).
1356  * The result is the sum for all the threads created on each cpu
1357  */
1358 static int read_fork_rate()
1359 {
1360         extern kstat_ctl_t *kc;
1361         kstat_t *ksp_chain = NULL;
1362         derive_t result = 0;
1363
1364         if (kc == NULL)
1365                 return (-1);
1366
1367         for (ksp_chain = kc->kc_chain;
1368                         ksp_chain != NULL;
1369                         ksp_chain = ksp_chain->ks_next)
1370         {
1371                 if ((strcmp (ksp_chain->ks_module, "cpu") == 0)
1372                                 && (strcmp (ksp_chain->ks_name, "sys") == 0)
1373                                 && (strcmp (ksp_chain->ks_class, "misc") == 0))
1374                 {
1375                         long long tmp;
1376
1377                         kstat_read (kc, ksp_chain, NULL);
1378
1379                         tmp = get_kstat_value(ksp_chain, "nthreads");
1380                         if (tmp != -1LL)
1381                                 result += tmp;
1382                 }
1383         }
1384
1385         ps_submit_fork_rate (result);
1386         return (0);
1387 }
1388 #endif /* KERNEL_SOLARIS */
1389
1390 #if HAVE_THREAD_INFO
1391 static int mach_get_task_name (task_t t, int *pid, char *name, size_t name_max_len)
1392 {
1393         int mib[4];
1394
1395         struct kinfo_proc kp;
1396         size_t            kp_size;
1397
1398         mib[0] = CTL_KERN;
1399         mib[1] = KERN_PROC;
1400         mib[2] = KERN_PROC_PID;
1401
1402         if (pid_for_task (t, pid) != KERN_SUCCESS)
1403                 return (-1);
1404         mib[3] = *pid;
1405
1406         kp_size = sizeof (kp);
1407         if (sysctl (mib, 4, &kp, &kp_size, NULL, 0) != 0)
1408                 return (-1);
1409
1410         if (name_max_len > (MAXCOMLEN + 1))
1411                 name_max_len = MAXCOMLEN + 1;
1412
1413         strncpy (name, kp.kp_proc.p_comm, name_max_len - 1);
1414         name[name_max_len - 1] = '\0';
1415
1416         DEBUG ("pid = %i; name = %s;", *pid, name);
1417
1418         /* We don't do the special handling for `p_comm == "LaunchCFMApp"' as
1419          * `top' does it, because it is a lot of work and only used when
1420          * debugging. -octo */
1421
1422         return (0);
1423 }
1424 #endif /* HAVE_THREAD_INFO */
1425 /* ------- end of additional functions for KERNEL_LINUX/HAVE_THREAD_INFO ------- */
1426
1427 /* do actual readings from kernel */
1428 static int ps_read (void)
1429 {
1430 #if HAVE_THREAD_INFO
1431         kern_return_t            status;
1432
1433         int                      pset;
1434         processor_set_t          port_pset_priv;
1435
1436         int                      task;
1437         task_array_t             task_list;
1438         mach_msg_type_number_t   task_list_len;
1439
1440         int                      task_pid;
1441         char                     task_name[MAXCOMLEN + 1];
1442
1443         int                      thread;
1444         thread_act_array_t       thread_list;
1445         mach_msg_type_number_t   thread_list_len;
1446         thread_basic_info_data_t thread_data;
1447         mach_msg_type_number_t   thread_data_len;
1448
1449         int running  = 0;
1450         int sleeping = 0;
1451         int zombies  = 0;
1452         int stopped  = 0;
1453         int blocked  = 0;
1454
1455         procstat_t *ps;
1456         procstat_entry_t pse;
1457
1458         ps_list_reset ();
1459
1460         /*
1461          * The Mach-concept is a little different from the traditional UNIX
1462          * concept: All the work is done in threads. Threads are contained in
1463          * `tasks'. Therefore, `task status' doesn't make much sense, since
1464          * it's actually a `thread status'.
1465          * Tasks are assigned to sets of processors, so that's where you go to
1466          * get a list.
1467          */
1468         for (pset = 0; pset < pset_list_len; pset++)
1469         {
1470                 if ((status = host_processor_set_priv (port_host_self,
1471                                                 pset_list[pset],
1472                                                 &port_pset_priv)) != KERN_SUCCESS)
1473                 {
1474                         ERROR ("host_processor_set_priv failed: %s\n",
1475                                         mach_error_string (status));
1476                         continue;
1477                 }
1478
1479                 if ((status = processor_set_tasks (port_pset_priv,
1480                                                 &task_list,
1481                                                 &task_list_len)) != KERN_SUCCESS)
1482                 {
1483                         ERROR ("processor_set_tasks failed: %s\n",
1484                                         mach_error_string (status));
1485                         mach_port_deallocate (port_task_self, port_pset_priv);
1486                         continue;
1487                 }
1488
1489                 for (task = 0; task < task_list_len; task++)
1490                 {
1491                         ps = NULL;
1492                         if (mach_get_task_name (task_list[task],
1493                                                 &task_pid,
1494                                                 task_name, PROCSTAT_NAME_LEN) == 0)
1495                         {
1496                                 /* search for at least one match */
1497                                 for (ps = list_head_g; ps != NULL; ps = ps->next)
1498                                         /* FIXME: cmdline should be here instead of NULL */
1499                                         if (ps_list_match (task_name, NULL, ps) == 1)
1500                                                 break;
1501                         }
1502
1503                         /* Collect more detailed statistics for this process */
1504                         if (ps != NULL)
1505                         {
1506                                 task_basic_info_data_t        task_basic_info;
1507                                 mach_msg_type_number_t        task_basic_info_len;
1508                                 task_events_info_data_t       task_events_info;
1509                                 mach_msg_type_number_t        task_events_info_len;
1510                                 task_absolutetime_info_data_t task_absolutetime_info;
1511                                 mach_msg_type_number_t        task_absolutetime_info_len;
1512
1513                                 memset (&pse, '\0', sizeof (pse));
1514                                 pse.id = task_pid;
1515
1516                                 task_basic_info_len = TASK_BASIC_INFO_COUNT;
1517                                 status = task_info (task_list[task],
1518                                                 TASK_BASIC_INFO,
1519                                                 (task_info_t) &task_basic_info,
1520                                                 &task_basic_info_len);
1521                                 if (status != KERN_SUCCESS)
1522                                 {
1523                                         ERROR ("task_info failed: %s",
1524                                                         mach_error_string (status));
1525                                         continue; /* with next thread_list */
1526                                 }
1527
1528                                 task_events_info_len = TASK_EVENTS_INFO_COUNT;
1529                                 status = task_info (task_list[task],
1530                                                 TASK_EVENTS_INFO,
1531                                                 (task_info_t) &task_events_info,
1532                                                 &task_events_info_len);
1533                                 if (status != KERN_SUCCESS)
1534                                 {
1535                                         ERROR ("task_info failed: %s",
1536                                                         mach_error_string (status));
1537                                         continue; /* with next thread_list */
1538                                 }
1539
1540                                 task_absolutetime_info_len = TASK_ABSOLUTETIME_INFO_COUNT;
1541                                 status = task_info (task_list[task],
1542                                                 TASK_ABSOLUTETIME_INFO,
1543                                                 (task_info_t) &task_absolutetime_info,
1544                                                 &task_absolutetime_info_len);
1545                                 if (status != KERN_SUCCESS)
1546                                 {
1547                                         ERROR ("task_info failed: %s",
1548                                                         mach_error_string (status));
1549                                         continue; /* with next thread_list */
1550                                 }
1551
1552                                 pse.num_proc++;
1553                                 pse.vmem_size = task_basic_info.virtual_size;
1554                                 pse.vmem_rss = task_basic_info.resident_size;
1555                                 /* Does not seem to be easily exposed */
1556                                 pse.vmem_data = 0;
1557                                 pse.vmem_code = 0;
1558
1559                                 pse.vmem_minflt_counter = task_events_info.cow_faults;
1560                                 pse.vmem_majflt_counter = task_events_info.faults;
1561
1562                                 pse.cpu_user_counter = task_absolutetime_info.total_user;
1563                                 pse.cpu_system_counter = task_absolutetime_info.total_system;
1564                         }
1565
1566                         status = task_threads (task_list[task], &thread_list,
1567                                         &thread_list_len);
1568                         if (status != KERN_SUCCESS)
1569                         {
1570                                 /* Apple's `top' treats this case a zombie. It
1571                                  * makes sense to some extend: A `zombie'
1572                                  * thread is nonsense, since the task/process
1573                                  * is dead. */
1574                                 zombies++;
1575                                 DEBUG ("task_threads failed: %s",
1576                                                 mach_error_string (status));
1577                                 if (task_list[task] != port_task_self)
1578                                         mach_port_deallocate (port_task_self,
1579                                                         task_list[task]);
1580                                 continue; /* with next task_list */
1581                         }
1582
1583                         for (thread = 0; thread < thread_list_len; thread++)
1584                         {
1585                                 thread_data_len = THREAD_BASIC_INFO_COUNT;
1586                                 status = thread_info (thread_list[thread],
1587                                                 THREAD_BASIC_INFO,
1588                                                 (thread_info_t) &thread_data,
1589                                                 &thread_data_len);
1590                                 if (status != KERN_SUCCESS)
1591                                 {
1592                                         ERROR ("thread_info failed: %s",
1593                                                         mach_error_string (status));
1594                                         if (task_list[task] != port_task_self)
1595                                                 mach_port_deallocate (port_task_self,
1596                                                                 thread_list[thread]);
1597                                         continue; /* with next thread_list */
1598                                 }
1599
1600                                 if (ps != NULL)
1601                                         pse.num_lwp++;
1602
1603                                 switch (thread_data.run_state)
1604                                 {
1605                                         case TH_STATE_RUNNING:
1606                                                 running++;
1607                                                 break;
1608                                         case TH_STATE_STOPPED:
1609                                         /* What exactly is `halted'? */
1610                                         case TH_STATE_HALTED:
1611                                                 stopped++;
1612                                                 break;
1613                                         case TH_STATE_WAITING:
1614                                                 sleeping++;
1615                                                 break;
1616                                         case TH_STATE_UNINTERRUPTIBLE:
1617                                                 blocked++;
1618                                                 break;
1619                                         /* There is no `zombie' case here,
1620                                          * since there are no zombie-threads.
1621                                          * There's only zombie tasks, which are
1622                                          * handled above. */
1623                                         default:
1624                                                 WARNING ("Unknown thread status: %i",
1625                                                                 thread_data.run_state);
1626                                                 break;
1627                                 } /* switch (thread_data.run_state) */
1628
1629                                 if (task_list[task] != port_task_self)
1630                                 {
1631                                         status = mach_port_deallocate (port_task_self,
1632                                                         thread_list[thread]);
1633                                         if (status != KERN_SUCCESS)
1634                                                 ERROR ("mach_port_deallocate failed: %s",
1635                                                                 mach_error_string (status));
1636                                 }
1637                         } /* for (thread_list) */
1638
1639                         if ((status = vm_deallocate (port_task_self,
1640                                                         (vm_address_t) thread_list,
1641                                                         thread_list_len * sizeof (thread_act_t)))
1642                                         != KERN_SUCCESS)
1643                         {
1644                                 ERROR ("vm_deallocate failed: %s",
1645                                                 mach_error_string (status));
1646                         }
1647                         thread_list = NULL;
1648                         thread_list_len = 0;
1649
1650                         /* Only deallocate the task port, if it isn't our own.
1651                          * Don't know what would happen in that case, but this
1652                          * is what Apple's top does.. ;) */
1653                         if (task_list[task] != port_task_self)
1654                         {
1655                                 status = mach_port_deallocate (port_task_self,
1656                                                 task_list[task]);
1657                                 if (status != KERN_SUCCESS)
1658                                         ERROR ("mach_port_deallocate failed: %s",
1659                                                         mach_error_string (status));
1660                         }
1661
1662                         if (ps != NULL)
1663                                 /* FIXME: cmdline should be here instead of NULL */
1664                                 ps_list_add (task_name, NULL, &pse);
1665                 } /* for (task_list) */
1666
1667                 if ((status = vm_deallocate (port_task_self,
1668                                 (vm_address_t) task_list,
1669                                 task_list_len * sizeof (task_t))) != KERN_SUCCESS)
1670                 {
1671                         ERROR ("vm_deallocate failed: %s",
1672                                         mach_error_string (status));
1673                 }
1674                 task_list = NULL;
1675                 task_list_len = 0;
1676
1677                 if ((status = mach_port_deallocate (port_task_self, port_pset_priv))
1678                                 != KERN_SUCCESS)
1679                 {
1680                         ERROR ("mach_port_deallocate failed: %s",
1681                                         mach_error_string (status));
1682                 }
1683         } /* for (pset_list) */
1684
1685         ps_submit_state ("running", running);
1686         ps_submit_state ("sleeping", sleeping);
1687         ps_submit_state ("zombies", zombies);
1688         ps_submit_state ("stopped", stopped);
1689         ps_submit_state ("blocked", blocked);
1690
1691         for (ps = list_head_g; ps != NULL; ps = ps->next)
1692                 ps_submit_proc_list (ps);
1693 /* #endif HAVE_THREAD_INFO */
1694
1695 #elif KERNEL_LINUX
1696         int running  = 0;
1697         int sleeping = 0;
1698         int zombies  = 0;
1699         int stopped  = 0;
1700         int paging   = 0;
1701         int blocked  = 0;
1702
1703         struct dirent *ent;
1704         DIR           *proc;
1705         int            pid;
1706
1707         char cmdline[ARG_MAX];
1708
1709         int        status;
1710         procstat_t ps;
1711         procstat_entry_t pse;
1712         char       state;
1713
1714         procstat_t *ps_ptr;
1715
1716         running = sleeping = zombies = stopped = paging = blocked = 0;
1717         ps_list_reset ();
1718
1719         if ((proc = opendir ("/proc")) == NULL)
1720         {
1721                 char errbuf[1024];
1722                 ERROR ("Cannot open `/proc': %s",
1723                                 sstrerror (errno, errbuf, sizeof (errbuf)));
1724                 return (-1);
1725         }
1726
1727         while ((ent = readdir (proc)) != NULL)
1728         {
1729                 if (!isdigit (ent->d_name[0]))
1730                         continue;
1731
1732                 if ((pid = atoi (ent->d_name)) < 1)
1733                         continue;
1734
1735                 status = ps_read_process (pid, &ps, &state);
1736                 if (status != 0)
1737                 {
1738                         DEBUG ("ps_read_process failed: %i", status);
1739                         continue;
1740                 }
1741
1742                 pse.id       = pid;
1743                 pse.age      = 0;
1744
1745                 pse.num_proc   = ps.num_proc;
1746                 pse.num_lwp    = ps.num_lwp;
1747                 pse.vmem_size  = ps.vmem_size;
1748                 pse.vmem_rss   = ps.vmem_rss;
1749                 pse.vmem_data  = ps.vmem_data;
1750                 pse.vmem_code  = ps.vmem_code;
1751                 pse.stack_size = ps.stack_size;
1752
1753                 pse.vmem_minflt = 0;
1754                 pse.vmem_minflt_counter = ps.vmem_minflt_counter;
1755                 pse.vmem_majflt = 0;
1756                 pse.vmem_majflt_counter = ps.vmem_majflt_counter;
1757
1758                 pse.cpu_user = 0;
1759                 pse.cpu_user_counter = ps.cpu_user_counter;
1760                 pse.cpu_system = 0;
1761                 pse.cpu_system_counter = ps.cpu_system_counter;
1762
1763                 pse.io_rchar = ps.io_rchar;
1764                 pse.io_wchar = ps.io_wchar;
1765                 pse.io_syscr = ps.io_syscr;
1766                 pse.io_syscw = ps.io_syscw;
1767
1768                 switch (state)
1769                 {
1770                         case 'R': running++;  break;
1771                         case 'S': sleeping++; break;
1772                         case 'D': blocked++;  break;
1773                         case 'Z': zombies++;  break;
1774                         case 'T': stopped++;  break;
1775                         case 'W': paging++;   break;
1776                 }
1777
1778                 ps_list_add (ps.name,
1779                                 ps_get_cmdline (pid, ps.name, cmdline, sizeof (cmdline)),
1780                                 &pse);
1781         }
1782
1783         closedir (proc);
1784
1785         ps_submit_state ("running",  running);
1786         ps_submit_state ("sleeping", sleeping);
1787         ps_submit_state ("zombies",  zombies);
1788         ps_submit_state ("stopped",  stopped);
1789         ps_submit_state ("paging",   paging);
1790         ps_submit_state ("blocked",  blocked);
1791
1792         for (ps_ptr = list_head_g; ps_ptr != NULL; ps_ptr = ps_ptr->next)
1793                 ps_submit_proc_list (ps_ptr);
1794
1795         read_fork_rate();
1796 /* #endif KERNEL_LINUX */
1797
1798 #elif HAVE_LIBKVM_GETPROCS && HAVE_STRUCT_KINFO_PROC_FREEBSD
1799         int running  = 0;
1800         int sleeping = 0;
1801         int zombies  = 0;
1802         int stopped  = 0;
1803         int blocked  = 0;
1804         int idle     = 0;
1805         int wait     = 0;
1806
1807         kvm_t *kd;
1808         char errbuf[_POSIX2_LINE_MAX];
1809         struct kinfo_proc *procs;          /* array of processes */
1810         struct kinfo_proc *proc_ptr = NULL;
1811         int count;                         /* returns number of processes */
1812         int i;
1813
1814         procstat_t *ps_ptr;
1815         procstat_entry_t pse;
1816
1817         ps_list_reset ();
1818
1819         /* Open the kvm interface, get a descriptor */
1820         kd = kvm_openfiles (NULL, "/dev/null", NULL, 0, errbuf);
1821         if (kd == NULL)
1822         {
1823                 ERROR ("processes plugin: Cannot open kvm interface: %s",
1824                                 errbuf);
1825                 return (0);
1826         }
1827
1828         /* Get the list of processes. */
1829         procs = kvm_getprocs(kd, KERN_PROC_ALL, 0, &count);
1830         if (procs == NULL)
1831         {
1832                 ERROR ("processes plugin: Cannot get kvm processes list: %s",
1833                                 kvm_geterr(kd));
1834                 kvm_close (kd);
1835                 return (0);
1836         }
1837
1838         /* Iterate through the processes in kinfo_proc */
1839         for (i = 0; i < count; i++)
1840         {
1841                 /* Create only one process list entry per _process_, i.e.
1842                  * filter out threads (duplicate PID entries). */
1843                 if ((proc_ptr == NULL) || (proc_ptr->ki_pid != procs[i].ki_pid))
1844                 {
1845                         char cmdline[ARG_MAX] = "";
1846                         _Bool have_cmdline = 0;
1847
1848                         proc_ptr = &(procs[i]);
1849                         /* Don't probe system processes and processes without arguments */
1850                         if (((procs[i].ki_flag & P_SYSTEM) == 0)
1851                                         && (procs[i].ki_args != NULL))
1852                         {
1853                                 char **argv;
1854                                 int argc;
1855                                 int status;
1856
1857                                 /* retrieve the arguments */
1858                                 argv = kvm_getargv (kd, proc_ptr, /* nchr = */ 0);
1859                                 argc = 0;
1860                                 if ((argv != NULL) && (argv[0] != NULL))
1861                                 {
1862                                         while (argv[argc] != NULL)
1863                                                 argc++;
1864
1865                                         status = strjoin (cmdline, sizeof (cmdline), argv, argc, " ");
1866                                         if (status < 0)
1867                                                 WARNING ("processes plugin: Command line did not fit into buffer.");
1868                                         else
1869                                                 have_cmdline = 1;
1870                                 }
1871                         } /* if (process has argument list) */
1872
1873                         pse.id       = procs[i].ki_pid;
1874                         pse.age      = 0;
1875
1876                         pse.num_proc = 1;
1877                         pse.num_lwp  = procs[i].ki_numthreads;
1878
1879                         pse.vmem_size = procs[i].ki_size;
1880                         pse.vmem_rss = procs[i].ki_rssize * pagesize;
1881                         pse.vmem_data = procs[i].ki_dsize * pagesize;
1882                         pse.vmem_code = procs[i].ki_tsize * pagesize;
1883                         pse.stack_size = procs[i].ki_ssize * pagesize;
1884                         pse.vmem_minflt = 0;
1885                         pse.vmem_minflt_counter = procs[i].ki_rusage.ru_minflt;
1886                         pse.vmem_majflt = 0;
1887                         pse.vmem_majflt_counter = procs[i].ki_rusage.ru_majflt;
1888
1889                         pse.cpu_user = 0;
1890                         pse.cpu_system = 0;
1891                         pse.cpu_user_counter = 0;
1892                         pse.cpu_system_counter = 0;
1893                         /*
1894                          * The u-area might be swapped out, and we can't get
1895                          * at it because we have a crashdump and no swap.
1896                          * If it's here fill in these fields, otherwise, just
1897                          * leave them 0.
1898                          */
1899                         if (procs[i].ki_flag & P_INMEM)
1900                         {
1901                                 pse.cpu_user_counter = procs[i].ki_rusage.ru_utime.tv_usec
1902                                         + (1000000lu * procs[i].ki_rusage.ru_utime.tv_sec);
1903                                 pse.cpu_system_counter = procs[i].ki_rusage.ru_stime.tv_usec
1904                                         + (1000000lu * procs[i].ki_rusage.ru_stime.tv_sec);
1905                         }
1906
1907                         /* no I/O data */
1908                         pse.io_rchar = -1;
1909                         pse.io_wchar = -1;
1910                         pse.io_syscr = -1;
1911                         pse.io_syscw = -1;
1912
1913                         ps_list_add (procs[i].ki_comm, have_cmdline ? cmdline : NULL, &pse);
1914
1915                         switch (procs[i].ki_stat)
1916                         {
1917                                 case SSTOP:     stopped++;      break;
1918                                 case SSLEEP:    sleeping++;     break;
1919                                 case SRUN:      running++;      break;
1920                                 case SIDL:      idle++;         break;
1921                                 case SWAIT:     wait++;         break;
1922                                 case SLOCK:     blocked++;      break;
1923                                 case SZOMB:     zombies++;      break;
1924                         }
1925                 } /* if ((proc_ptr == NULL) || (proc_ptr->ki_pid != procs[i].ki_pid)) */
1926         }
1927
1928         kvm_close(kd);
1929
1930         ps_submit_state ("running",  running);
1931         ps_submit_state ("sleeping", sleeping);
1932         ps_submit_state ("zombies",  zombies);
1933         ps_submit_state ("stopped",  stopped);
1934         ps_submit_state ("blocked",  blocked);
1935         ps_submit_state ("idle",     idle);
1936         ps_submit_state ("wait",     wait);
1937
1938         for (ps_ptr = list_head_g; ps_ptr != NULL; ps_ptr = ps_ptr->next)
1939                 ps_submit_proc_list (ps_ptr);
1940 /* #endif HAVE_LIBKVM_GETPROCS && HAVE_STRUCT_KINFO_PROC_FREEBSD */
1941
1942 #elif HAVE_PROCINFO_H
1943         /* AIX */
1944         int running  = 0;
1945         int sleeping = 0;
1946         int zombies  = 0;
1947         int stopped  = 0;
1948         int paging   = 0;
1949         int blocked  = 0;
1950
1951         pid_t pindex = 0;
1952         int nprocs;
1953
1954         procstat_t *ps;
1955         procstat_entry_t pse;
1956
1957         ps_list_reset ();
1958         while ((nprocs = getprocs64 (procentry, sizeof(struct procentry64),
1959                                         /* fdsinfo = */ NULL, sizeof(struct fdsinfo64),
1960                                         &pindex, MAXPROCENTRY)) > 0)
1961         {
1962                 int i;
1963
1964                 for (i = 0; i < nprocs; i++)
1965                 {
1966                         tid64_t thindex;
1967                         int nthreads;
1968                         char arglist[MAXARGLN+1];
1969                         char *cargs;
1970                         char *cmdline;
1971
1972                         if (procentry[i].pi_state == SNONE) continue;
1973                         /* if (procentry[i].pi_state == SZOMB)  FIXME */
1974
1975                         cmdline = procentry[i].pi_comm;
1976                         cargs = procentry[i].pi_comm;
1977                         if ( procentry[i].pi_flags & SKPROC )
1978                         {
1979                                 if (procentry[i].pi_pid == 0)
1980                                         cmdline = "swapper";
1981                                 cargs = cmdline;
1982                         }
1983                         else
1984                         {
1985                                 if (getargs(&procentry[i], sizeof(struct procentry64), arglist, MAXARGLN) >= 0)
1986                                 {
1987                                         int n;
1988
1989                                         n = -1;
1990                                         while (++n < MAXARGLN)
1991                                         {
1992                                                 if (arglist[n] == '\0')
1993                                                 {
1994                                                         if (arglist[n+1] == '\0')
1995                                                                 break;
1996                                                         arglist[n] = ' ';
1997                                                 }
1998                                         }
1999                                         cargs = arglist;
2000                                 }
2001                         }
2002
2003                         pse.id       = procentry[i].pi_pid;
2004                         pse.age      = 0;
2005                         pse.num_lwp  = procentry[i].pi_thcount;
2006                         pse.num_proc = 1;
2007
2008                         thindex=0;
2009                         while ((nthreads = getthrds64(procentry[i].pi_pid,
2010                                                         thrdentry, sizeof(struct thrdentry64),
2011                                                         &thindex, MAXTHRDENTRY)) > 0)
2012                         {
2013                                 int j;
2014
2015                                 for (j=0; j< nthreads; j++)
2016                                 {
2017                                         switch (thrdentry[j].ti_state)
2018                                         {
2019                                                 /* case TSNONE: break; */
2020                                                 case TSIDL:     blocked++;      break; /* FIXME is really blocked */
2021                                                 case TSRUN:     running++;      break;
2022                                                 case TSSLEEP:   sleeping++;     break;
2023                                                 case TSSWAP:    paging++;       break;
2024                                                 case TSSTOP:    stopped++;      break;
2025                                                 case TSZOMB:    zombies++;      break;
2026                                         }
2027                                 }
2028                                 if (nthreads < MAXTHRDENTRY)
2029                                         break;
2030                         }
2031
2032                         pse.cpu_user = 0;
2033                         /* tv_usec is nanosec ??? */
2034                         pse.cpu_user_counter = procentry[i].pi_ru.ru_utime.tv_sec * 1000000 +
2035                                 procentry[i].pi_ru.ru_utime.tv_usec / 1000;
2036
2037                         pse.cpu_system = 0;
2038                         /* tv_usec is nanosec ??? */
2039                         pse.cpu_system_counter = procentry[i].pi_ru.ru_stime.tv_sec * 1000000 +
2040                                 procentry[i].pi_ru.ru_stime.tv_usec / 1000;
2041
2042                         pse.vmem_minflt = 0;
2043                         pse.vmem_minflt_counter = procentry[i].pi_minflt;
2044                         pse.vmem_majflt = 0;
2045                         pse.vmem_majflt_counter = procentry[i].pi_majflt;
2046
2047                         pse.vmem_size = procentry[i].pi_tsize + procentry[i].pi_dvm * pagesize;
2048                         pse.vmem_rss = (procentry[i].pi_drss + procentry[i].pi_trss) * pagesize;
2049                         /* Not supported */
2050                         pse.vmem_data = 0;
2051                         pse.vmem_code = 0;
2052                         pse.stack_size =  0;
2053
2054                         pse.io_rchar = -1;
2055                         pse.io_wchar = -1;
2056                         pse.io_syscr = -1;
2057                         pse.io_syscw = -1;
2058
2059                         ps_list_add (cmdline, cargs, &pse);
2060                 } /* for (i = 0 .. nprocs) */
2061
2062                 if (nprocs < MAXPROCENTRY)
2063                         break;
2064         } /* while (getprocs64() > 0) */
2065         ps_submit_state ("running",  running);
2066         ps_submit_state ("sleeping", sleeping);
2067         ps_submit_state ("zombies",  zombies);
2068         ps_submit_state ("stopped",  stopped);
2069         ps_submit_state ("paging",   paging);
2070         ps_submit_state ("blocked",  blocked);
2071
2072         for (ps = list_head_g; ps != NULL; ps = ps->next)
2073                 ps_submit_proc_list (ps);
2074 /* #endif HAVE_PROCINFO_H */
2075
2076 #elif KERNEL_SOLARIS
2077         /*
2078          * The Solaris section adds a few more process states and removes some
2079          * process states compared to linux. Most notably there is no "PAGING"
2080          * and "BLOCKED" state for a process.  The rest is similar to the linux
2081          * code.
2082          */
2083         int running = 0;
2084         int sleeping = 0;
2085         int zombies = 0;
2086         int stopped = 0;
2087         int detached = 0;
2088         int daemon = 0;
2089         int system = 0;
2090         int orphan = 0;
2091
2092         struct dirent *ent;
2093         DIR *proc;
2094
2095         int status;
2096         procstat_t *ps_ptr;
2097         char state;
2098
2099         char cmdline[PRARGSZ];
2100
2101         ps_list_reset ();
2102
2103         proc = opendir ("/proc");
2104         if (proc == NULL)
2105                 return (-1);
2106
2107         while ((ent = readdir(proc)) != NULL)
2108         {
2109                 long pid;
2110                 struct procstat ps;
2111                 procstat_entry_t pse;
2112                 char *endptr;
2113
2114                 if (!isdigit ((int) ent->d_name[0]))
2115                         continue;
2116
2117                 pid = strtol (ent->d_name, &endptr, 10);
2118                 if (*endptr != 0) /* value didn't completely parse as a number */
2119                         continue;
2120
2121                 status = ps_read_process (pid, &ps, &state);
2122                 if (status != 0)
2123                 {
2124                         DEBUG("ps_read_process failed: %i", status);
2125                         continue;
2126                 }
2127
2128                 pse.id = pid;
2129                 pse.age = 0;
2130
2131                 pse.num_proc   = ps.num_proc;
2132                 pse.num_lwp    = ps.num_lwp;
2133                 pse.vmem_size  = ps.vmem_size;
2134                 pse.vmem_rss   = ps.vmem_rss;
2135                 pse.vmem_data  = ps.vmem_data;
2136                 pse.vmem_code  = ps.vmem_code;
2137                 pse.stack_size = ps.stack_size;
2138
2139                 pse.vmem_minflt = 0;
2140                 pse.vmem_minflt_counter = ps.vmem_minflt_counter;
2141                 pse.vmem_majflt = 0;
2142                 pse.vmem_majflt_counter = ps.vmem_majflt_counter;
2143
2144                 pse.cpu_user = 0;
2145                 pse.cpu_user_counter = ps.cpu_user_counter;
2146                 pse.cpu_system = 0;
2147                 pse.cpu_system_counter = ps.cpu_system_counter;
2148
2149                 pse.io_rchar = ps.io_rchar;
2150                 pse.io_wchar = ps.io_wchar;
2151                 pse.io_syscr = ps.io_syscr;
2152                 pse.io_syscw = ps.io_syscw;
2153
2154                 switch (state)
2155                 {
2156                         case 'R': running++;  break;
2157                         case 'S': sleeping++; break;
2158                         case 'E': detached++; break;
2159                         case 'Z': zombies++;  break;
2160                         case 'T': stopped++;  break;
2161                         case 'A': daemon++;   break;
2162                         case 'Y': system++;   break;
2163                         case 'O': orphan++;   break;
2164                 }
2165
2166
2167                 ps_list_add (ps.name,
2168                                 ps_get_cmdline (pid, cmdline, sizeof (cmdline)),
2169                                 &pse);
2170         } /* while(readdir) */
2171         closedir (proc);
2172
2173         ps_submit_state ("running",  running);
2174         ps_submit_state ("sleeping", sleeping);
2175         ps_submit_state ("zombies",  zombies);
2176         ps_submit_state ("stopped",  stopped);
2177         ps_submit_state ("detached", detached);
2178         ps_submit_state ("daemon",   daemon);
2179         ps_submit_state ("system",   system);
2180         ps_submit_state ("orphan",   orphan);
2181
2182         for (ps_ptr = list_head_g; ps_ptr != NULL; ps_ptr = ps_ptr->next)
2183                 ps_submit_proc_list (ps_ptr);
2184
2185         read_fork_rate();
2186 #endif /* KERNEL_SOLARIS */
2187
2188         return (0);
2189 } /* int ps_read */
2190
2191 void module_register (void)
2192 {
2193         plugin_register_complex_config ("processes", ps_config);
2194         plugin_register_init ("processes", ps_init);
2195         plugin_register_read ("processes", ps_read);
2196 } /* void module_register */