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 # include <procfs.h>
 116 # include <dirent.h>
 117 /* #endif KERNEL_SOLARIS */
 118
 119 #else
 120 # error "No applicable input method."
 121 #endif
 122
 123 #if HAVE_REGEX_H
 124 # include <regex.h>
 125 #endif
 126
 127 #if HAVE_KSTAT_H
 128 # include <kstat.h>
 129 #endif
 130
 131 #ifndef CMDLINE_BUFFER_SIZE
 132 # if defined(ARG_MAX) && (ARG_MAX < 4096)
 133 #  define CMDLINE_BUFFER_SIZE ARG_MAX
 134 # else
 135 #  define CMDLINE_BUFFER_SIZE 4096
 136 # endif
 137 #endif
 138
 139 typedef struct procstat_entry_s
 140 {
 141         unsigned long id;
 142         unsigned long age;
 143
 144         unsigned long num_proc;
 145         unsigned long num_lwp;
 146         unsigned long vmem_size;
 147         unsigned long vmem_rss;
 148         unsigned long vmem_data;
 149         unsigned long vmem_code;
 150         unsigned long stack_size;
 151
 152         unsigned long vmem_minflt;
 153         unsigned long vmem_majflt;
 154         derive_t      vmem_minflt_counter;
 155         derive_t      vmem_majflt_counter;
 156
 157         unsigned long cpu_user;
 158         unsigned long cpu_system;
 159         derive_t      cpu_user_counter;
 160         derive_t      cpu_system_counter;
 161
 162         /* io data */
 163         derive_t io_rchar;
 164         derive_t io_wchar;
 165         derive_t io_syscr;
 166         derive_t io_syscw;
 167
 168         struct procstat_entry_s *next;
 169 } procstat_entry_t;
 170
 171 #define PROCSTAT_NAME_LEN 256
 172 typedef struct procstat
 173 {
 174         char          name[PROCSTAT_NAME_LEN];
 175 #if HAVE_REGEX_H
 176         regex_t *re;
 177 #endif
 178
 179         unsigned long num_proc;
 180         unsigned long num_lwp;
 181         unsigned long vmem_size;
 182         unsigned long vmem_rss;
 183         unsigned long vmem_data;
 184         unsigned long vmem_code;
 185         unsigned long stack_size;
 186
 187         derive_t vmem_minflt_counter;
 188         derive_t vmem_majflt_counter;
 189
 190         derive_t cpu_user_counter;
 191         derive_t cpu_system_counter;
 192
 193         /* io data */
 194         derive_t io_rchar;
 195         derive_t io_wchar;
 196         derive_t io_syscr;
 197         derive_t io_syscw;
 198
 199         struct procstat   *next;
 200         struct procstat_entry_s *instances;
 201 } procstat_t;
 202
 203 static procstat_t *list_head_g = NULL;
 204
 205 #if HAVE_THREAD_INFO
 206 static mach_port_t port_host_self;
 207 static mach_port_t port_task_self;
 208
 209 static processor_set_name_array_t pset_list;
 210 static mach_msg_type_number_t     pset_list_len;
 211 /* #endif HAVE_THREAD_INFO */
 212
 213 #elif KERNEL_LINUX
 214 static long pagesize_g;
 215 /* #endif KERNEL_LINUX */
 216
 217 #elif HAVE_LIBKVM_GETPROCS && (HAVE_STRUCT_KINFO_PROC_FREEBSD || HAVE_STRUCT_KINFO_PROC_OPENBSD)
 218 static int pagesize;
 219 /* #endif HAVE_LIBKVM_GETPROCS && (HAVE_STRUCT_KINFO_PROC_FREEBSD || HAVE_STRUCT_KINFO_PROC_OPENBSD) */
 220
 221 #elif HAVE_PROCINFO_H
 222 static  struct procentry64 procentry[MAXPROCENTRY];
 223 static  struct thrdentry64 thrdentry[MAXTHRDENTRY];
 224 static int pagesize;
 225
 226 #ifndef _AIXVERSION_610
 227 int     getprocs64 (void *procsinfo, int sizproc, void *fdsinfo, int sizfd, pid_t *index, int count);
 228 int     getthrds64( pid_t, void *, int, tid64_t *, int );
 229 #endif
 230 int getargs (void *processBuffer, int bufferLen, char *argsBuffer, int argsLen);
 231 #endif /* HAVE_PROCINFO_H */
 232
 233 /* put name of process from config to list_head_g tree
 234  * list_head_g is a list of 'procstat_t' structs with
 235  * processes names we want to watch */
 236 static void ps_list_register (const char *name, const char *regexp)
 237 {
 238         procstat_t *new;
 239         procstat_t *ptr;
 240         int status;
 241
 242         new = (procstat_t *) malloc (sizeof (procstat_t));
 243         if (new == NULL)
 244         {
 245                 ERROR ("processes plugin: ps_list_register: malloc failed.");
 246                 return;
 247         }
 248         memset (new, 0, sizeof (procstat_t));
 249         sstrncpy (new->name, name, sizeof (new->name));
 250
 251 #if HAVE_REGEX_H
 252         if (regexp != NULL)
 253         {
 254                 DEBUG ("ProcessMatch: adding \"%s\" as criteria to process %s.", regexp, name);
 255                 new->re = (regex_t *) malloc (sizeof (regex_t));
 256                 if (new->re == NULL)
 257                 {
 258                         ERROR ("processes plugin: ps_list_register: malloc failed.");
 259                         sfree (new);
 260                         return;
 261                 }
 262
 263                 status = regcomp (new->re, regexp, REG_EXTENDED | REG_NOSUB);
 264                 if (status != 0)
 265                 {
 266                         DEBUG ("ProcessMatch: compiling the regular expression \"%s\" failed.", regexp);
 267                         sfree(new->re);
 268                         return;
 269                 }
 270         }
 271 #else
 272         if (regexp != NULL)
 273         {
 274                 ERROR ("processes plugin: ps_list_register: "
 275                                 "Regular expression \"%s\" found in config "
 276                                 "file, but support for regular expressions "
 277                                 "has been disabled at compile time.",
 278                                 regexp);
 279                 sfree (new);
 280                 return;
 281         }
 282 #endif
 283
 284         for (ptr = list_head_g; ptr != NULL; ptr = ptr->next)
 285         {
 286                 if (strcmp (ptr->name, name) == 0)
 287                 {
 288                         WARNING ("processes plugin: You have configured more "
 289                                         "than one `Process' or "
 290                                         "`ProcessMatch' with the same name. "
 291                                         "All but the first setting will be "
 292                                         "ignored.");
 293                         sfree (new->re);
 294                         sfree (new);
 295                         return;
 296                 }
 297
 298                 if (ptr->next == NULL)
 299                         break;
 300         }
 301
 302         if (ptr == NULL)
 303                 list_head_g = new;
 304         else
 305                 ptr->next = new;
 306 } /* void ps_list_register */
 307
 308 /* try to match name against entry, returns 1 if success */
 309 static int ps_list_match (const char *name, const char *cmdline, procstat_t *ps)
 310 {
 311 #if HAVE_REGEX_H
 312         if (ps->re != NULL)
 313         {
 314                 int status;
 315                 const char *str;
 316
 317                 str = cmdline;
 318                 if ((str == NULL) || (str[0] == 0))
 319                         str = name;
 320
 321                 assert (str != NULL);
 322
 323                 status = regexec (ps->re, str,
 324                                 /* nmatch = */ 0,
 325                                 /* pmatch = */ NULL,
 326                                 /* eflags = */ 0);
 327                 if (status == 0)
 328                         return (1);
 329         }
 330         else
 331 #endif
 332         if (strcmp (ps->name, name) == 0)
 333                 return (1);
 334
 335         return (0);
 336 } /* int ps_list_match */
 337
 338 /* add process entry to 'instances' of process 'name' (or refresh it) */
 339 static void ps_list_add (const char *name, const char *cmdline, procstat_entry_t *entry)
 340 {
 341         procstat_t *ps;
 342         procstat_entry_t *pse;
 343
 344         if (entry->id == 0)
 345                 return;
 346
 347         for (ps = list_head_g; ps != NULL; ps = ps->next)
 348         {
 349                 if ((ps_list_match (name, cmdline, ps)) == 0)
 350                         continue;
 351
 352                 for (pse = ps->instances; pse != NULL; pse = pse->next)
 353                         if ((pse->id == entry->id) || (pse->next == NULL))
 354                                 break;
 355
 356                 if ((pse == NULL) || (pse->id != entry->id))
 357                 {
 358                         procstat_entry_t *new;
 359
 360                         new = (procstat_entry_t *) malloc (sizeof (procstat_entry_t));
 361                         if (new == NULL)
 362                                 return;
 363                         memset (new, 0, sizeof (procstat_entry_t));
 364                         new->id = entry->id;
 365
 366                         if (pse == NULL)
 367                                 ps->instances = new;
 368                         else
 369                                 pse->next = new;
 370
 371                         pse = new;
 372                 }
 373
 374                 pse->age = 0;
 375                 pse->num_proc   = entry->num_proc;
 376                 pse->num_lwp    = entry->num_lwp;
 377                 pse->vmem_size  = entry->vmem_size;
 378                 pse->vmem_rss   = entry->vmem_rss;
 379                 pse->vmem_data  = entry->vmem_data;
 380                 pse->vmem_code  = entry->vmem_code;
 381                 pse->stack_size = entry->stack_size;
 382                 pse->io_rchar   = entry->io_rchar;
 383                 pse->io_wchar   = entry->io_wchar;
 384                 pse->io_syscr   = entry->io_syscr;
 385                 pse->io_syscw   = entry->io_syscw;
 386
 387                 ps->num_proc   += pse->num_proc;
 388                 ps->num_lwp    += pse->num_lwp;
 389                 ps->vmem_size  += pse->vmem_size;
 390                 ps->vmem_rss   += pse->vmem_rss;
 391                 ps->vmem_data  += pse->vmem_data;
 392                 ps->vmem_code  += pse->vmem_code;
 393                 ps->stack_size += pse->stack_size;
 394
 395                 ps->io_rchar   += ((pse->io_rchar == -1)?0:pse->io_rchar);
 396                 ps->io_wchar   += ((pse->io_wchar == -1)?0:pse->io_wchar);
 397                 ps->io_syscr   += ((pse->io_syscr == -1)?0:pse->io_syscr);
 398                 ps->io_syscw   += ((pse->io_syscw == -1)?0:pse->io_syscw);
 399
 400                 if ((entry->vmem_minflt_counter == 0)
 401                                 && (entry->vmem_majflt_counter == 0))
 402                 {
 403                         pse->vmem_minflt_counter += entry->vmem_minflt;
 404                         pse->vmem_minflt = entry->vmem_minflt;
 405
 406                         pse->vmem_majflt_counter += entry->vmem_majflt;
 407                         pse->vmem_majflt = entry->vmem_majflt;
 408                 }
 409                 else
 410                 {
 411                         if (entry->vmem_minflt_counter < pse->vmem_minflt_counter)
 412                         {
 413                                 pse->vmem_minflt = entry->vmem_minflt_counter
 414                                         + (ULONG_MAX - pse->vmem_minflt_counter);
 415                         }
 416                         else
 417                         {
 418                                 pse->vmem_minflt = entry->vmem_minflt_counter - pse->vmem_minflt_counter;
 419                         }
 420                         pse->vmem_minflt_counter = entry->vmem_minflt_counter;
 421
 422                         if (entry->vmem_majflt_counter < pse->vmem_majflt_counter)
 423                         {
 424                                 pse->vmem_majflt = entry->vmem_majflt_counter
 425                                         + (ULONG_MAX - pse->vmem_majflt_counter);
 426                         }
 427                         else
 428                         {
 429                                 pse->vmem_majflt = entry->vmem_majflt_counter - pse->vmem_majflt_counter;
 430                         }
 431                         pse->vmem_majflt_counter = entry->vmem_majflt_counter;
 432                 }
 433
 434                 ps->vmem_minflt_counter += pse->vmem_minflt;
 435                 ps->vmem_majflt_counter += pse->vmem_majflt;
 436
 437                 if ((entry->cpu_user_counter == 0)
 438                                 && (entry->cpu_system_counter == 0))
 439                 {
 440                         pse->cpu_user_counter += entry->cpu_user;
 441                         pse->cpu_user = entry->cpu_user;
 442
 443                         pse->cpu_system_counter += entry->cpu_system;
 444                         pse->cpu_system = entry->cpu_system;
 445                 }
 446                 else
 447                 {
 448                         if (entry->cpu_user_counter < pse->cpu_user_counter)
 449                         {
 450                                 pse->cpu_user = entry->cpu_user_counter
 451                                         + (ULONG_MAX - pse->cpu_user_counter);
 452                         }
 453                         else
 454                         {
 455                                 pse->cpu_user = entry->cpu_user_counter - pse->cpu_user_counter;
 456                         }
 457                         pse->cpu_user_counter = entry->cpu_user_counter;
 458
 459                         if (entry->cpu_system_counter < pse->cpu_system_counter)
 460                         {
 461                                 pse->cpu_system = entry->cpu_system_counter
 462                                         + (ULONG_MAX - pse->cpu_system_counter);
 463                         }
 464                         else
 465                         {
 466                                 pse->cpu_system = entry->cpu_system_counter - pse->cpu_system_counter;
 467                         }
 468                         pse->cpu_system_counter = entry->cpu_system_counter;
 469                 }
 470
 471                 ps->cpu_user_counter   += pse->cpu_user;
 472                 ps->cpu_system_counter += pse->cpu_system;
 473         }
 474 }
 475
 476 /* remove old entries from instances of processes in list_head_g */
 477 static void ps_list_reset (void)
 478 {
 479         procstat_t *ps;
 480         procstat_entry_t *pse;
 481         procstat_entry_t *pse_prev;
 482
 483         for (ps = list_head_g; ps != NULL; ps = ps->next)
 484         {
 485                 ps->num_proc    = 0;
 486                 ps->num_lwp     = 0;
 487                 ps->vmem_size   = 0;
 488                 ps->vmem_rss    = 0;
 489                 ps->vmem_data   = 0;
 490                 ps->vmem_code   = 0;
 491                 ps->stack_size  = 0;
 492                 ps->io_rchar = -1;
 493                 ps->io_wchar = -1;
 494                 ps->io_syscr = -1;
 495                 ps->io_syscw = -1;
 496
 497                 pse_prev = NULL;
 498                 pse = ps->instances;
 499                 while (pse != NULL)
 500                 {
 501                         if (pse->age > 10)
 502                         {
 503                                 DEBUG ("Removing this procstat entry cause it's too old: "
 504                                                 "id = %lu; name = %s;",
 505                                                 pse->id, ps->name);
 506
 507                                 if (pse_prev == NULL)
 508                                 {
 509                                         ps->instances = pse->next;
 510                                         free (pse);
 511                                         pse = ps->instances;
 512                                 }
 513                                 else
 514                                 {
 515                                         pse_prev->next = pse->next;
 516                                         free (pse);
 517                                         pse = pse_prev->next;
 518                                 }
 519                         }
 520                         else
 521                         {
 522                                 pse->age++;
 523                                 pse_prev = pse;
 524                                 pse = pse->next;
 525                         }
 526                 } /* while (pse != NULL) */
 527         } /* for (ps = list_head_g; ps != NULL; ps = ps->next) */
 528 }
 529
 530 /* put all pre-defined 'Process' names from config to list_head_g tree */
 531 static int ps_config (oconfig_item_t *ci)
 532 {
 533         int i;
 534
 535         for (i = 0; i < ci->children_num; ++i) {
 536                 oconfig_item_t *c = ci->children + i;
 537
 538                 if (strcasecmp (c->key, "Process") == 0)
 539                 {
 540                         if ((c->values_num != 1)
 541                                         || (OCONFIG_TYPE_STRING != c->values[0].type)) {
 542                                 ERROR ("processes plugin: `Process' expects exactly "
 543                                                 "one string argument (got %i).",
 544                                                 c->values_num);
 545                                 continue;
 546                         }
 547
 548                         if (c->children_num != 0) {
 549                                 WARNING ("processes plugin: the `Process' config option "
 550                                                 "does not expect any child elements -- ignoring "
 551                                                 "content (%i elements) of the <Process '%s'> block.",
 552                                                 c->children_num, c->values[0].value.string);
 553                         }
 554
 555                         ps_list_register (c->values[0].value.string, NULL);
 556                 }
 557                 else if (strcasecmp (c->key, "ProcessMatch") == 0)
 558                 {
 559                         if ((c->values_num != 2)
 560                                         || (OCONFIG_TYPE_STRING != c->values[0].type)
 561                                         || (OCONFIG_TYPE_STRING != c->values[1].type))
 562                         {
 563                                 ERROR ("processes plugin: `ProcessMatch' needs exactly "
 564                                                 "two string arguments (got %i).",
 565                                                 c->values_num);
 566                                 continue;
 567                         }
 568
 569                         if (c->children_num != 0) {
 570                                 WARNING ("processes plugin: the `ProcessMatch' config option "
 571                                                 "does not expect any child elements -- ignoring "
 572                                                 "content (%i elements) of the <ProcessMatch '%s' '%s'> "
 573                                                 "block.", c->children_num, c->values[0].value.string,
 574                                                 c->values[1].value.string);
 575                         }
 576
 577                         ps_list_register (c->values[0].value.string,
 578                                         c->values[1].value.string);
 579                 }
 580                 else
 581                 {
 582                         ERROR ("processes plugin: The `%s' configuration option is not "
 583                                         "understood and will be ignored.", c->key);
 584                         continue;
 585                 }
 586         }
 587
 588         return (0);
 589 }
 590
 591 static int ps_init (void)
 592 {
 593 #if HAVE_THREAD_INFO
 594         kern_return_t status;
 595
 596         port_host_self = mach_host_self ();
 597         port_task_self = mach_task_self ();
 598
 599         if (pset_list != NULL)
 600         {
 601                 vm_deallocate (port_task_self,
 602                                 (vm_address_t) pset_list,
 603                                 pset_list_len * sizeof (processor_set_t));
 604                 pset_list = NULL;
 605                 pset_list_len = 0;
 606         }
 607
 608         if ((status = host_processor_sets (port_host_self,
 609                                         &pset_list,
 610                                         &pset_list_len)) != KERN_SUCCESS)
 611         {
 612                 ERROR ("host_processor_sets failed: %s\n",
 613                                 mach_error_string (status));
 614                 pset_list = NULL;
 615                 pset_list_len = 0;
 616                 return (-1);
 617         }
 618 /* #endif HAVE_THREAD_INFO */
 619
 620 #elif KERNEL_LINUX
 621         pagesize_g = sysconf(_SC_PAGESIZE);
 622         DEBUG ("pagesize_g = %li; CONFIG_HZ = %i;",
 623                         pagesize_g, CONFIG_HZ);
 624 /* #endif KERNEL_LINUX */
 625
 626 #elif HAVE_LIBKVM_GETPROCS && (HAVE_STRUCT_KINFO_PROC_FREEBSD || HAVE_STRUCT_KINFO_PROC_OPENBSD)
 627         pagesize = getpagesize();
 628 /* #endif HAVE_LIBKVM_GETPROCS && (HAVE_STRUCT_KINFO_PROC_FREEBSD || HAVE_STRUCT_KINFO_PROC_OPENBSD) */
 629
 630 #elif HAVE_PROCINFO_H
 631         pagesize = getpagesize();
 632 #endif /* HAVE_PROCINFO_H */
 633
 634         return (0);
 635 } /* int ps_init */
 636
 637 /* submit global state (e.g.: qty of zombies, running, etc..) */
 638 static void ps_submit_state (const char *state, double value)
 639 {
 640         value_t values[1];
 641         value_list_t vl = VALUE_LIST_INIT;
 642
 643         values[0].gauge = value;
 644
 645         vl.values = values;
 646         vl.values_len = 1;
 647         sstrncpy (vl.host, hostname_g, sizeof (vl.host));
 648         sstrncpy (vl.plugin, "processes", sizeof (vl.plugin));
 649         sstrncpy (vl.plugin_instance, "", sizeof (vl.plugin_instance));
 650         sstrncpy (vl.type, "ps_state", sizeof (vl.type));
 651         sstrncpy (vl.type_instance, state, sizeof (vl.type_instance));
 652
 653         plugin_dispatch_values (&vl);
 654 }
 655
 656 /* submit info about specific process (e.g.: memory taken, cpu usage, etc..) */
 657 static void ps_submit_proc_list (procstat_t *ps)
 658 {
 659         value_t values[2];
 660         value_list_t vl = VALUE_LIST_INIT;
 661
 662         vl.values = values;
 663         vl.values_len = 2;
 664         sstrncpy (vl.host, hostname_g, sizeof (vl.host));
 665         sstrncpy (vl.plugin, "processes", sizeof (vl.plugin));
 666         sstrncpy (vl.plugin_instance, ps->name, sizeof (vl.plugin_instance));
 667
 668         sstrncpy (vl.type, "ps_vm", sizeof (vl.type));
 669         vl.values[0].gauge = ps->vmem_size;
 670         vl.values_len = 1;
 671         plugin_dispatch_values (&vl);
 672
 673         sstrncpy (vl.type, "ps_rss", sizeof (vl.type));
 674         vl.values[0].gauge = ps->vmem_rss;
 675         vl.values_len = 1;
 676         plugin_dispatch_values (&vl);
 677
 678         sstrncpy (vl.type, "ps_data", sizeof (vl.type));
 679         vl.values[0].gauge = ps->vmem_data;
 680         vl.values_len = 1;
 681         plugin_dispatch_values (&vl);
 682
 683         sstrncpy (vl.type, "ps_code", sizeof (vl.type));
 684         vl.values[0].gauge = ps->vmem_code;
 685         vl.values_len = 1;
 686         plugin_dispatch_values (&vl);
 687
 688         sstrncpy (vl.type, "ps_stacksize", sizeof (vl.type));
 689         vl.values[0].gauge = ps->stack_size;
 690         vl.values_len = 1;
 691         plugin_dispatch_values (&vl);
 692
 693         sstrncpy (vl.type, "ps_cputime", sizeof (vl.type));
 694         vl.values[0].derive = ps->cpu_user_counter;
 695         vl.values[1].derive = ps->cpu_system_counter;
 696         vl.values_len = 2;
 697         plugin_dispatch_values (&vl);
 698
 699         sstrncpy (vl.type, "ps_count", sizeof (vl.type));
 700         vl.values[0].gauge = ps->num_proc;
 701         vl.values[1].gauge = ps->num_lwp;
 702         vl.values_len = 2;
 703         plugin_dispatch_values (&vl);
 704
 705         sstrncpy (vl.type, "ps_pagefaults", sizeof (vl.type));
 706         vl.values[0].derive = ps->vmem_minflt_counter;
 707         vl.values[1].derive = ps->vmem_majflt_counter;
 708         vl.values_len = 2;
 709         plugin_dispatch_values (&vl);
 710
 711         if ( (ps->io_rchar != -1) && (ps->io_wchar != -1) )
 712         {
 713                 sstrncpy (vl.type, "ps_disk_octets", sizeof (vl.type));
 714                 vl.values[0].derive = ps->io_rchar;
 715                 vl.values[1].derive = ps->io_wchar;
 716                 vl.values_len = 2;
 717                 plugin_dispatch_values (&vl);
 718         }
 719
 720         if ( (ps->io_syscr != -1) && (ps->io_syscw != -1) )
 721         {
 722                 sstrncpy (vl.type, "ps_disk_ops", sizeof (vl.type));
 723                 vl.values[0].derive = ps->io_syscr;
 724                 vl.values[1].derive = ps->io_syscw;
 725                 vl.values_len = 2;
 726                 plugin_dispatch_values (&vl);
 727         }
 728
 729         DEBUG ("name = %s; num_proc = %lu; num_lwp = %lu; "
 730                         "vmem_size = %lu; vmem_rss = %lu; vmem_data = %lu; "
 731                         "vmem_code = %lu; "
 732                         "vmem_minflt_counter = %"PRIi64"; vmem_majflt_counter = %"PRIi64"; "
 733                         "cpu_user_counter = %"PRIi64"; cpu_system_counter = %"PRIi64"; "
 734                         "io_rchar = %"PRIi64"; io_wchar = %"PRIi64"; "
 735                         "io_syscr = %"PRIi64"; io_syscw = %"PRIi64";",
 736                         ps->name, ps->num_proc, ps->num_lwp,
 737                         ps->vmem_size, ps->vmem_rss,
 738                         ps->vmem_data, ps->vmem_code,
 739                         ps->vmem_minflt_counter, ps->vmem_majflt_counter,
 740                         ps->cpu_user_counter, ps->cpu_system_counter,
 741                         ps->io_rchar, ps->io_wchar, ps->io_syscr, ps->io_syscw);
 742 } /* void ps_submit_proc_list */
 743
 744 #if KERNEL_LINUX || KERNEL_SOLARIS
 745 static void ps_submit_fork_rate (derive_t value)
 746 {
 747         value_t values[1];
 748         value_list_t vl = VALUE_LIST_INIT;
 749
 750         values[0].derive = value;
 751
 752         vl.values = values;
 753         vl.values_len = 1;
 754         sstrncpy(vl.host, hostname_g, sizeof (vl.host));
 755         sstrncpy(vl.plugin, "processes", sizeof (vl.plugin));
 756         sstrncpy(vl.plugin_instance, "", sizeof (vl.plugin_instance));
 757         sstrncpy(vl.type, "fork_rate", sizeof (vl.type));
 758         sstrncpy(vl.type_instance, "", sizeof (vl.type_instance));
 759
 760         plugin_dispatch_values(&vl);
 761 }
 762 #endif /* KERNEL_LINUX || KERNEL_SOLARIS*/
 763
 764 /* ------- additional functions for KERNEL_LINUX/HAVE_THREAD_INFO ------- */
 765 #if KERNEL_LINUX
 766 static int ps_read_tasks (int pid)
 767 {
 768         char           dirname[64];
 769         DIR           *dh;
 770         struct dirent *ent;
 771         int count = 0;
 772
 773         ssnprintf (dirname, sizeof (dirname), "/proc/%i/task", pid);
 774
 775         if ((dh = opendir (dirname)) == NULL)
 776         {
 777                 DEBUG ("Failed to open directory `%s'", dirname);
 778                 return (-1);
 779         }
 780
 781         while ((ent = readdir (dh)) != NULL)
 782         {
 783                 if (!isdigit ((int) ent->d_name[0]))
 784                         continue;
 785                 else
 786                         count++;
 787         }
 788         closedir (dh);
 789
 790         return ((count >= 1) ? count : 1);
 791 } /* int *ps_read_tasks */
 792
 793 /* Read advanced virtual memory data from /proc/pid/status */
 794 static procstat_t *ps_read_vmem (int pid, procstat_t *ps)
 795 {
 796         FILE *fh;
 797         char buffer[1024];
 798         char filename[64];
 799         unsigned long long lib = 0;
 800         unsigned long long exe = 0;
 801         unsigned long long data = 0;
 802         char *fields[8];
 803         int numfields;
 804
 805         ssnprintf (filename, sizeof (filename), "/proc/%i/status", pid);
 806         if ((fh = fopen (filename, "r")) == NULL)
 807                 return (NULL);
 808
 809         while (fgets (buffer, sizeof(buffer), fh) != NULL)
 810         {
 811                 long long tmp;
 812                 char *endptr;
 813
 814                 if (strncmp (buffer, "Vm", 2) != 0)
 815                         continue;
 816
 817                 numfields = strsplit (buffer, fields,
 818                                 STATIC_ARRAY_SIZE (fields));
 819
 820                 if (numfields < 2)
 821                         continue;
 822
 823                 errno = 0;
 824                 endptr = NULL;
 825                 tmp = strtoll (fields[1], &endptr, /* base = */ 10);
 826                 if ((errno == 0) && (endptr != fields[1]))
 827                 {
 828                         if (strncmp (buffer, "VmData", 6) == 0)
 829                         {
 830                                 data = tmp;
 831                         }
 832                         else if (strncmp (buffer, "VmLib", 5) == 0)
 833                         {
 834                                 lib = tmp;
 835                         }
 836                         else if  (strncmp(buffer, "VmExe", 5) == 0)
 837                         {
 838                                 exe = tmp;
 839                         }
 840                 }
 841         } /* while (fgets) */
 842
 843         if (fclose (fh))
 844         {
 845                 char errbuf[1024];
 846                 WARNING ("processes: fclose: %s",
 847                                 sstrerror (errno, errbuf, sizeof (errbuf)));
 848         }
 849
 850         ps->vmem_data = data * 1024;
 851         ps->vmem_code = (exe + lib) * 1024;
 852
 853         return (ps);
 854 } /* procstat_t *ps_read_vmem */
 855
 856 static procstat_t *ps_read_io (int pid, procstat_t *ps)
 857 {
 858         FILE *fh;
 859         char buffer[1024];
 860         char filename[64];
 861
 862         char *fields[8];
 863         int numfields;
 864
 865         ssnprintf (filename, sizeof (filename), "/proc/%i/io", pid);
 866         if ((fh = fopen (filename, "r")) == NULL)
 867                 return (NULL);
 868
 869         while (fgets (buffer, sizeof (buffer), fh) != NULL)
 870         {
 871                 derive_t *val = NULL;
 872                 long long tmp;
 873                 char *endptr;
 874
 875                 if (strncasecmp (buffer, "rchar:", 6) == 0)
 876                         val = &(ps->io_rchar);
 877                 else if (strncasecmp (buffer, "wchar:", 6) == 0)
 878                         val = &(ps->io_wchar);
 879                 else if (strncasecmp (buffer, "syscr:", 6) == 0)
 880                         val = &(ps->io_syscr);
 881                 else if (strncasecmp (buffer, "syscw:", 6) == 0)
 882                         val = &(ps->io_syscw);
 883                 else
 884                         continue;
 885
 886                 numfields = strsplit (buffer, fields,
 887                                 STATIC_ARRAY_SIZE (fields));
 888
 889                 if (numfields < 2)
 890                         continue;
 891
 892                 errno = 0;
 893                 endptr = NULL;
 894                 tmp = strtoll (fields[1], &endptr, /* base = */ 10);
 895                 if ((errno != 0) || (endptr == fields[1]))
 896                         *val = -1;
 897                 else
 898                         *val = (derive_t) tmp;
 899         } /* while (fgets) */
 900
 901         if (fclose (fh))
 902         {
 903                 char errbuf[1024];
 904                 WARNING ("processes: fclose: %s",
 905                                 sstrerror (errno, errbuf, sizeof (errbuf)));
 906         }
 907
 908         return (ps);
 909 } /* procstat_t *ps_read_io */
 910
 911 int ps_read_process (int pid, procstat_t *ps, char *state)
 912 {
 913         char  filename[64];
 914         char  buffer[1024];
 915
 916         char *fields[64];
 917         char  fields_len;
 918
 919         int   buffer_len;
 920
 921         char *buffer_ptr;
 922         size_t name_start_pos;
 923         size_t name_end_pos;
 924         size_t name_len;
 925
 926         derive_t cpu_user_counter;
 927         derive_t cpu_system_counter;
 928         long long unsigned vmem_size;
 929         long long unsigned vmem_rss;
 930         long long unsigned stack_size;
 931
 932         memset (ps, 0, sizeof (procstat_t));
 933
 934         ssnprintf (filename, sizeof (filename), "/proc/%i/stat", pid);
 935
 936         buffer_len = read_file_contents (filename,
 937                         buffer, sizeof(buffer) - 1);
 938         if (buffer_len <= 0)
 939                 return (-1);
 940         buffer[buffer_len] = 0;
 941
 942         /* The name of the process is enclosed in parens. Since the name can
 943          * contain parens itself, spaces, numbers and pretty much everything
 944          * else, use these to determine the process name. We don't use
 945          * strchr(3) and strrchr(3) to avoid pointer arithmetic which would
 946          * otherwise be required to determine name_len. */
 947         name_start_pos = 0;
 948         while ((buffer[name_start_pos] != '(')
 949                         && (name_start_pos < buffer_len))
 950                 name_start_pos++;
 951
 952         name_end_pos = buffer_len;
 953         while ((buffer[name_end_pos] != ')')
 954                         && (name_end_pos > 0))
 955                 name_end_pos--;
 956
 957         /* Either '(' or ')' is not found or they are in the wrong order.
 958          * Anyway, something weird that shouldn't happen ever. */
 959         if (name_start_pos >= name_end_pos)
 960         {
 961                 ERROR ("processes plugin: name_start_pos = %zu >= name_end_pos = %zu",
 962                                 name_start_pos, name_end_pos);
 963                 return (-1);
 964         }
 965
 966         name_len = (name_end_pos - name_start_pos) - 1;
 967         if (name_len >= sizeof (ps->name))
 968                 name_len = sizeof (ps->name) - 1;
 969
 970         sstrncpy (ps->name, &buffer[name_start_pos + 1], name_len + 1);
 971
 972         if ((buffer_len - name_end_pos) < 2)
 973                 return (-1);
 974         buffer_ptr = &buffer[name_end_pos + 2];
 975
 976         fields_len = strsplit (buffer_ptr, fields, STATIC_ARRAY_SIZE (fields));
 977         if (fields_len < 22)
 978         {
 979                 DEBUG ("processes plugin: ps_read_process (pid = %i):"
 980                                 " `%s' has only %i fields..",
 981                                 (int) pid, filename, fields_len);
 982                 return (-1);
 983         }
 984
 985         *state = fields[0][0];
 986
 987         if (*state == 'Z')
 988         {
 989                 ps->num_lwp  = 0;
 990                 ps->num_proc = 0;
 991         }
 992         else
 993         {
 994                 if ( (ps->num_lwp = ps_read_tasks (pid)) == -1 )
 995                 {
 996                         /* returns -1 => kernel 2.4 */
 997                         ps->num_lwp = 1;
 998                 }
 999                 ps->num_proc = 1;
1000         }
1001
1002         /* Leave the rest at zero if this is only a zombi */
1003         if (ps->num_proc == 0)
1004         {
1005                 DEBUG ("processes plugin: This is only a zombi: pid = %i; "
1006                                 "name = %s;", pid, ps->name);
1007                 return (0);
1008         }
1009
1010         cpu_user_counter   = atoll (fields[11]);
1011         cpu_system_counter = atoll (fields[12]);
1012         vmem_size          = atoll (fields[20]);
1013         vmem_rss           = atoll (fields[21]);
1014         ps->vmem_minflt_counter = atol (fields[7]);
1015         ps->vmem_majflt_counter = atol (fields[9]);
1016
1017         {
1018                 unsigned long long stack_start = atoll (fields[25]);
1019                 unsigned long long stack_ptr   = atoll (fields[26]);
1020
1021                 stack_size = (stack_start > stack_ptr)
1022                         ? stack_start - stack_ptr
1023                         : stack_ptr - stack_start;
1024         }
1025
1026         /* Convert jiffies to useconds */
1027         cpu_user_counter   = cpu_user_counter   * 1000000 / CONFIG_HZ;
1028         cpu_system_counter = cpu_system_counter * 1000000 / CONFIG_HZ;
1029         vmem_rss = vmem_rss * pagesize_g;
1030
1031         if ( (ps_read_vmem(pid, ps)) == NULL)
1032         {
1033                 /* No VMem data */
1034                 ps->vmem_data = -1;
1035                 ps->vmem_code = -1;
1036                 DEBUG("ps_read_process: did not get vmem data for pid %i",pid);
1037         }
1038
1039         ps->cpu_user_counter = cpu_user_counter;
1040         ps->cpu_system_counter = cpu_system_counter;
1041         ps->vmem_size = (unsigned long) vmem_size;
1042         ps->vmem_rss = (unsigned long) vmem_rss;
1043         ps->stack_size = (unsigned long) stack_size;
1044
1045         if ( (ps_read_io (pid, ps)) == NULL)
1046         {
1047                 /* no io data */
1048                 ps->io_rchar = -1;
1049                 ps->io_wchar = -1;
1050                 ps->io_syscr = -1;
1051                 ps->io_syscw = -1;
1052
1053                 DEBUG("ps_read_process: not get io data for pid %i",pid);
1054         }
1055
1056         /* success */
1057         return (0);
1058 } /* int ps_read_process (...) */
1059
1060 static char *ps_get_cmdline (pid_t pid, char *name, char *buf, size_t buf_len)
1061 {
1062         char  *buf_ptr;
1063         size_t len;
1064
1065         char file[PATH_MAX];
1066         int  fd;
1067
1068         size_t n;
1069
1070         if ((pid < 1) || (NULL == buf) || (buf_len < 2))
1071                 return NULL;
1072
1073         ssnprintf (file, sizeof (file), "/proc/%u/cmdline",
1074                         (unsigned int) pid);
1075
1076         errno = 0;
1077         fd = open (file, O_RDONLY);
1078         if (fd < 0) {
1079                 char errbuf[4096];
1080                 /* ENOENT means the process exited while we were handling it.
1081                  * Don't complain about this, it only fills the logs. */
1082                 if (errno != ENOENT)
1083                         WARNING ("processes plugin: Failed to open `%s': %s.", file,
1084                                         sstrerror (errno, errbuf, sizeof (errbuf)));
1085                 return NULL;
1086         }
1087
1088         buf_ptr = buf;
1089         len     = buf_len;
1090
1091         n = 0;
1092
1093         while (42) {
1094                 ssize_t status;
1095
1096                 status = read (fd, (void *)buf_ptr, len);
1097
1098                 if (status < 0) {
1099                         char errbuf[1024];
1100
1101                         if ((EAGAIN == errno) || (EINTR == errno))
1102                                 continue;
1103
1104                         WARNING ("processes plugin: Failed to read from `%s': %s.", file,
1105                                         sstrerror (errno, errbuf, sizeof (errbuf)));
1106                         close (fd);
1107                         return NULL;
1108                 }
1109
1110                 n += status;
1111
1112                 if (status == 0)
1113                         break;
1114
1115                 buf_ptr += status;
1116                 len     -= status;
1117
1118                 if (len <= 0)
1119                         break;
1120         }
1121
1122         close (fd);
1123
1124         if (0 == n) {
1125                 /* cmdline not available; e.g. kernel thread, zombie */
1126                 if (NULL == name)
1127                         return NULL;
1128
1129                 ssnprintf (buf, buf_len, "[%s]", name);
1130                 return buf;
1131         }
1132
1133         assert (n <= buf_len);
1134
1135         if (n == buf_len)
1136                 --n;
1137         buf[n] = '\0';
1138
1139         --n;
1140         /* remove trailing whitespace */
1141         while ((n > 0) && (isspace (buf[n]) || ('\0' == buf[n]))) {
1142                 buf[n] = '\0';
1143                 --n;
1144         }
1145
1146         /* arguments are separated by '\0' in /proc/<pid>/cmdline */
1147         while (n > 0) {
1148                 if ('\0' == buf[n])
1149                         buf[n] = ' ';
1150                 --n;
1151         }
1152         return buf;
1153 } /* char *ps_get_cmdline (...) */
1154
1155 static int read_fork_rate ()
1156 {
1157         FILE *proc_stat;
1158         char buffer[1024];
1159         value_t value;
1160         _Bool value_valid = 0;
1161
1162         proc_stat = fopen ("/proc/stat", "r");
1163         if (proc_stat == NULL)
1164         {
1165                 char errbuf[1024];
1166                 ERROR ("processes plugin: fopen (/proc/stat) failed: %s",
1167                                 sstrerror (errno, errbuf, sizeof (errbuf)));
1168                 return (-1);
1169         }
1170
1171         while (fgets (buffer, sizeof (buffer), proc_stat) != NULL)
1172         {
1173                 int status;
1174                 char *fields[3];
1175                 int fields_num;
1176
1177                 fields_num = strsplit (buffer, fields,
1178                                 STATIC_ARRAY_SIZE (fields));
1179                 if (fields_num != 2)
1180                         continue;
1181
1182                 if (strcmp ("processes", fields[0]) != 0)
1183                         continue;
1184
1185                 status = parse_value (fields[1], &value, DS_TYPE_DERIVE);
1186                 if (status == 0)
1187                         value_valid = 1;
1188
1189                 break;
1190         }
1191         fclose(proc_stat);
1192
1193         if (!value_valid)
1194                 return (-1);
1195
1196         ps_submit_fork_rate (value.derive);
1197         return (0);
1198 }
1199 #endif /*KERNEL_LINUX */
1200
1201 #if KERNEL_SOLARIS
1202 static const char *ps_get_cmdline (pid_t pid, /* {{{ */
1203                 char *buffer, size_t buffer_size)
1204 {
1205         char path[PATH_MAX];
1206         psinfo_t info;
1207         int status;
1208
1209         snprintf(path, sizeof (path), "/proc/%i/psinfo", pid);
1210
1211         status = read_file_contents (path, (void *) &info, sizeof (info));
1212         if (status != ((int) buffer_size))
1213         {
1214                 ERROR ("processes plugin: Unexpected return value "
1215                                 "while reading \"%s\": "
1216                                 "Returned %i but expected %zu.",
1217                                 path, status, buffer_size);
1218                 return (NULL);
1219         }
1220
1221         info.pr_psargs[sizeof (info.pr_psargs) - 1] = 0;
1222         sstrncpy (buffer, info.pr_psargs, buffer_size);
1223
1224         return (buffer);
1225 } /* }}} int ps_get_cmdline */
1226
1227 /*
1228  * Reads process information on the Solaris OS. The information comes mainly from
1229  * /proc/PID/status, /proc/PID/psinfo and /proc/PID/usage
1230  * The values for input and ouput chars are calculated "by hand"
1231  * Added a few "solaris" specific process states as well
1232  */
1233 static int ps_read_process(int pid, procstat_t *ps, char *state)
1234 {
1235         char filename[64];
1236         char f_psinfo[64], f_usage[64];
1237         char *buffer;
1238
1239         pstatus_t *myStatus;
1240         psinfo_t *myInfo;
1241         prusage_t *myUsage;
1242
1243         snprintf(filename, sizeof (filename), "/proc/%i/status", pid);
1244         snprintf(f_psinfo, sizeof (f_psinfo), "/proc/%i/psinfo", pid);
1245         snprintf(f_usage, sizeof (f_usage), "/proc/%i/usage", pid);
1246
1247
1248         buffer = malloc(sizeof (pstatus_t));
1249         memset(buffer, 0, sizeof (pstatus_t));
1250         read_file_contents(filename, buffer, sizeof (pstatus_t));
1251         myStatus = (pstatus_t *) buffer;
1252
1253         buffer = malloc(sizeof (psinfo_t));
1254         memset(buffer, 0, sizeof(psinfo_t));
1255         read_file_contents(f_psinfo, buffer, sizeof (psinfo_t));
1256         myInfo = (psinfo_t *) buffer;
1257
1258         buffer = malloc(sizeof (prusage_t));
1259         memset(buffer, 0, sizeof(prusage_t));
1260         read_file_contents(f_usage, buffer, sizeof (prusage_t));
1261         myUsage = (prusage_t *) buffer;
1262
1263         sstrncpy(ps->name, myInfo->pr_fname, sizeof (myInfo->pr_fname));
1264         ps->num_lwp = myStatus->pr_nlwp;
1265         if (myInfo->pr_wstat != 0) {
1266                 ps->num_proc = 0;
1267                 ps->num_lwp = 0;
1268                 *state = (char) 'Z';
1269                 return (0);
1270         } else {
1271                 ps->num_proc = 1;
1272                 ps->num_lwp = myInfo->pr_nlwp;
1273         }
1274
1275         /*
1276          * Convert system time and user time from nanoseconds to microseconds
1277          * for compatibility with the linux module
1278          */
1279         ps->cpu_system_counter = myStatus -> pr_stime.tv_nsec / 1000;
1280         ps->cpu_user_counter = myStatus -> pr_utime.tv_nsec / 1000;
1281
1282         /*
1283          * Convert rssize from KB to bytes to be consistent w/ the linux module
1284          */
1285         ps->vmem_rss = myInfo->pr_rssize * 1024;
1286         ps->vmem_size = myInfo->pr_size * 1024;
1287         ps->vmem_minflt_counter = myUsage->pr_minf;
1288         ps->vmem_majflt_counter = myUsage->pr_majf;
1289
1290         /*
1291          * TODO: Data and code segment calculations for Solaris
1292          */
1293
1294         ps->vmem_data = -1;
1295         ps->vmem_code = -1;
1296         ps->stack_size = myStatus->pr_stksize;
1297
1298         /*
1299          * Calculating input/ouput chars
1300          * Formula used is total chars / total blocks => chars/block
1301          * then convert input/output blocks to chars
1302          */
1303         ulong_t tot_chars = myUsage->pr_ioch;
1304         ulong_t tot_blocks = myUsage->pr_inblk + myUsage->pr_oublk;
1305         ulong_t chars_per_block = 1;
1306         if (tot_blocks != 0)
1307                 chars_per_block = tot_chars / tot_blocks;
1308         ps->io_rchar = myUsage->pr_inblk * chars_per_block;
1309         ps->io_wchar = myUsage->pr_oublk * chars_per_block;
1310         ps->io_syscr = myUsage->pr_sysc;
1311         ps->io_syscw = myUsage->pr_sysc;
1312
1313
1314         /*
1315          * TODO: Find way of setting BLOCKED and PAGING status
1316          */
1317
1318         *state = (char) 'R';
1319         if (myStatus->pr_flags & PR_ASLEEP)
1320                 *state = (char) 'S';
1321         else if (myStatus->pr_flags & PR_STOPPED)
1322                 *state = (char) 'T';
1323         else if (myStatus->pr_flags & PR_DETACH)
1324                 *state = (char) 'E';
1325         else if (myStatus->pr_flags & PR_DAEMON)
1326                 *state = (char) 'A';
1327         else if (myStatus->pr_flags & PR_ISSYS)
1328                 *state = (char) 'Y';
1329         else if (myStatus->pr_flags & PR_ORPHAN)
1330                 *state = (char) 'O';
1331
1332         sfree(myStatus);
1333         sfree(myInfo);
1334         sfree(myUsage);
1335
1336         return (0);
1337 }
1338
1339 /*
1340  * Reads the number of threads created since the last reboot. On Solaris these
1341  * are retrieved from kstat (module cpu, name sys, class misc, stat nthreads).
1342  * The result is the sum for all the threads created on each cpu
1343  */
1344 static int read_fork_rate()
1345 {
1346         extern kstat_ctl_t *kc;
1347         kstat_t *ksp_chain = NULL;
1348         derive_t result = 0;
1349
1350         if (kc == NULL)
1351                 return (-1);
1352
1353         for (ksp_chain = kc->kc_chain;
1354                         ksp_chain != NULL;
1355                         ksp_chain = ksp_chain->ks_next)
1356         {
1357                 if ((strcmp (ksp_chain->ks_module, "cpu") == 0)
1358                                 && (strcmp (ksp_chain->ks_name, "sys") == 0)
1359                                 && (strcmp (ksp_chain->ks_class, "misc") == 0))
1360                 {
1361                         long long tmp;
1362
1363                         kstat_read (kc, ksp_chain, NULL);
1364
1365                         tmp = get_kstat_value(ksp_chain, "nthreads");
1366                         if (tmp != -1LL)
1367                                 result += tmp;
1368                 }
1369         }
1370
1371         ps_submit_fork_rate (result);
1372         return (0);
1373 }
1374 #endif /* KERNEL_SOLARIS */
1375
1376 #if HAVE_THREAD_INFO
1377 static int mach_get_task_name (task_t t, int *pid, char *name, size_t name_max_len)
1378 {
1379         int mib[4];
1380
1381         struct kinfo_proc kp;
1382         size_t            kp_size;
1383
1384         mib[0] = CTL_KERN;
1385         mib[1] = KERN_PROC;
1386         mib[2] = KERN_PROC_PID;
1387
1388         if (pid_for_task (t, pid) != KERN_SUCCESS)
1389                 return (-1);
1390         mib[3] = *pid;
1391
1392         kp_size = sizeof (kp);
1393         if (sysctl (mib, 4, &kp, &kp_size, NULL, 0) != 0)
1394                 return (-1);
1395
1396         if (name_max_len > (MAXCOMLEN + 1))
1397                 name_max_len = MAXCOMLEN + 1;
1398
1399         strncpy (name, kp.kp_proc.p_comm, name_max_len - 1);
1400         name[name_max_len - 1] = '\0';
1401
1402         DEBUG ("pid = %i; name = %s;", *pid, name);
1403
1404         /* We don't do the special handling for `p_comm == "LaunchCFMApp"' as
1405          * `top' does it, because it is a lot of work and only used when
1406          * debugging. -octo */
1407
1408         return (0);
1409 }
1410 #endif /* HAVE_THREAD_INFO */
1411 /* ------- end of additional functions for KERNEL_LINUX/HAVE_THREAD_INFO ------- */
1412
1413 /* do actual readings from kernel */
1414 static int ps_read (void)
1415 {
1416 #if HAVE_THREAD_INFO
1417         kern_return_t            status;
1418
1419         int                      pset;
1420         processor_set_t          port_pset_priv;
1421
1422         int                      task;
1423         task_array_t             task_list;
1424         mach_msg_type_number_t   task_list_len;
1425
1426         int                      task_pid;
1427         char                     task_name[MAXCOMLEN + 1];
1428
1429         int                      thread;
1430         thread_act_array_t       thread_list;
1431         mach_msg_type_number_t   thread_list_len;
1432         thread_basic_info_data_t thread_data;
1433         mach_msg_type_number_t   thread_data_len;
1434
1435         int running  = 0;
1436         int sleeping = 0;
1437         int zombies  = 0;
1438         int stopped  = 0;
1439         int blocked  = 0;
1440
1441         procstat_t *ps;
1442         procstat_entry_t pse;
1443
1444         ps_list_reset ();
1445
1446         /*
1447          * The Mach-concept is a little different from the traditional UNIX
1448          * concept: All the work is done in threads. Threads are contained in
1449          * `tasks'. Therefore, `task status' doesn't make much sense, since
1450          * it's actually a `thread status'.
1451          * Tasks are assigned to sets of processors, so that's where you go to
1452          * get a list.
1453          */
1454         for (pset = 0; pset < pset_list_len; pset++)
1455         {
1456                 if ((status = host_processor_set_priv (port_host_self,
1457                                                 pset_list[pset],
1458                                                 &port_pset_priv)) != KERN_SUCCESS)
1459                 {
1460                         ERROR ("host_processor_set_priv failed: %s\n",
1461                                         mach_error_string (status));
1462                         continue;
1463                 }
1464
1465                 if ((status = processor_set_tasks (port_pset_priv,
1466                                                 &task_list,
1467                                                 &task_list_len)) != KERN_SUCCESS)
1468                 {
1469                         ERROR ("processor_set_tasks failed: %s\n",
1470                                         mach_error_string (status));
1471                         mach_port_deallocate (port_task_self, port_pset_priv);
1472                         continue;
1473                 }
1474
1475                 for (task = 0; task < task_list_len; task++)
1476                 {
1477                         ps = NULL;
1478                         if (mach_get_task_name (task_list[task],
1479                                                 &task_pid,
1480                                                 task_name, PROCSTAT_NAME_LEN) == 0)
1481                         {
1482                                 /* search for at least one match */
1483                                 for (ps = list_head_g; ps != NULL; ps = ps->next)
1484                                         /* FIXME: cmdline should be here instead of NULL */
1485                                         if (ps_list_match (task_name, NULL, ps) == 1)
1486                                                 break;
1487                         }
1488
1489                         /* Collect more detailed statistics for this process */
1490                         if (ps != NULL)
1491                         {
1492                                 task_basic_info_data_t        task_basic_info;
1493                                 mach_msg_type_number_t        task_basic_info_len;
1494                                 task_events_info_data_t       task_events_info;
1495                                 mach_msg_type_number_t        task_events_info_len;
1496                                 task_absolutetime_info_data_t task_absolutetime_info;
1497                                 mach_msg_type_number_t        task_absolutetime_info_len;
1498
1499                                 memset (&pse, '\0', sizeof (pse));
1500                                 pse.id = task_pid;
1501
1502                                 task_basic_info_len = TASK_BASIC_INFO_COUNT;
1503                                 status = task_info (task_list[task],
1504                                                 TASK_BASIC_INFO,
1505                                                 (task_info_t) &task_basic_info,
1506                                                 &task_basic_info_len);
1507                                 if (status != KERN_SUCCESS)
1508                                 {
1509                                         ERROR ("task_info failed: %s",
1510                                                         mach_error_string (status));
1511                                         continue; /* with next thread_list */
1512                                 }
1513
1514                                 task_events_info_len = TASK_EVENTS_INFO_COUNT;
1515                                 status = task_info (task_list[task],
1516                                                 TASK_EVENTS_INFO,
1517                                                 (task_info_t) &task_events_info,
1518                                                 &task_events_info_len);
1519                                 if (status != KERN_SUCCESS)
1520                                 {
1521                                         ERROR ("task_info failed: %s",
1522                                                         mach_error_string (status));
1523                                         continue; /* with next thread_list */
1524                                 }
1525
1526                                 task_absolutetime_info_len = TASK_ABSOLUTETIME_INFO_COUNT;
1527                                 status = task_info (task_list[task],
1528                                                 TASK_ABSOLUTETIME_INFO,
1529                                                 (task_info_t) &task_absolutetime_info,
1530                                                 &task_absolutetime_info_len);
1531                                 if (status != KERN_SUCCESS)
1532                                 {
1533                                         ERROR ("task_info failed: %s",
1534                                                         mach_error_string (status));
1535                                         continue; /* with next thread_list */
1536                                 }
1537
1538                                 pse.num_proc++;
1539                                 pse.vmem_size = task_basic_info.virtual_size;
1540                                 pse.vmem_rss = task_basic_info.resident_size;
1541                                 /* Does not seem to be easily exposed */
1542                                 pse.vmem_data = 0;
1543                                 pse.vmem_code = 0;
1544
1545                                 pse.vmem_minflt_counter = task_events_info.cow_faults;
1546                                 pse.vmem_majflt_counter = task_events_info.faults;
1547
1548                                 pse.cpu_user_counter = task_absolutetime_info.total_user;
1549                                 pse.cpu_system_counter = task_absolutetime_info.total_system;
1550                         }
1551
1552                         status = task_threads (task_list[task], &thread_list,
1553                                         &thread_list_len);
1554                         if (status != KERN_SUCCESS)
1555                         {
1556                                 /* Apple's `top' treats this case a zombie. It
1557                                  * makes sense to some extend: A `zombie'
1558                                  * thread is nonsense, since the task/process
1559                                  * is dead. */
1560                                 zombies++;
1561                                 DEBUG ("task_threads failed: %s",
1562                                                 mach_error_string (status));
1563                                 if (task_list[task] != port_task_self)
1564                                         mach_port_deallocate (port_task_self,
1565                                                         task_list[task]);
1566                                 continue; /* with next task_list */
1567                         }
1568
1569                         for (thread = 0; thread < thread_list_len; thread++)
1570                         {
1571                                 thread_data_len = THREAD_BASIC_INFO_COUNT;
1572                                 status = thread_info (thread_list[thread],
1573                                                 THREAD_BASIC_INFO,
1574                                                 (thread_info_t) &thread_data,
1575                                                 &thread_data_len);
1576                                 if (status != KERN_SUCCESS)
1577                                 {
1578                                         ERROR ("thread_info failed: %s",
1579                                                         mach_error_string (status));
1580                                         if (task_list[task] != port_task_self)
1581                                                 mach_port_deallocate (port_task_self,
1582                                                                 thread_list[thread]);
1583                                         continue; /* with next thread_list */
1584                                 }
1585
1586                                 if (ps != NULL)
1587                                         pse.num_lwp++;
1588
1589                                 switch (thread_data.run_state)
1590                                 {
1591                                         case TH_STATE_RUNNING:
1592                                                 running++;
1593                                                 break;
1594                                         case TH_STATE_STOPPED:
1595                                         /* What exactly is `halted'? */
1596                                         case TH_STATE_HALTED:
1597                                                 stopped++;
1598                                                 break;
1599                                         case TH_STATE_WAITING:
1600                                                 sleeping++;
1601                                                 break;
1602                                         case TH_STATE_UNINTERRUPTIBLE:
1603                                                 blocked++;
1604                                                 break;
1605                                         /* There is no `zombie' case here,
1606                                          * since there are no zombie-threads.
1607                                          * There's only zombie tasks, which are
1608                                          * handled above. */
1609                                         default:
1610                                                 WARNING ("Unknown thread status: %i",
1611                                                                 thread_data.run_state);
1612                                                 break;
1613                                 } /* switch (thread_data.run_state) */
1614
1615                                 if (task_list[task] != port_task_self)
1616                                 {
1617                                         status = mach_port_deallocate (port_task_self,
1618                                                         thread_list[thread]);
1619                                         if (status != KERN_SUCCESS)
1620                                                 ERROR ("mach_port_deallocate failed: %s",
1621                                                                 mach_error_string (status));
1622                                 }
1623                         } /* for (thread_list) */
1624
1625                         if ((status = vm_deallocate (port_task_self,
1626                                                         (vm_address_t) thread_list,
1627                                                         thread_list_len * sizeof (thread_act_t)))
1628                                         != KERN_SUCCESS)
1629                         {
1630                                 ERROR ("vm_deallocate failed: %s",
1631                                                 mach_error_string (status));
1632                         }
1633                         thread_list = NULL;
1634                         thread_list_len = 0;
1635
1636                         /* Only deallocate the task port, if it isn't our own.
1637                          * Don't know what would happen in that case, but this
1638                          * is what Apple's top does.. ;) */
1639                         if (task_list[task] != port_task_self)
1640                         {
1641                                 status = mach_port_deallocate (port_task_self,
1642                                                 task_list[task]);
1643                                 if (status != KERN_SUCCESS)
1644                                         ERROR ("mach_port_deallocate failed: %s",
1645                                                         mach_error_string (status));
1646                         }
1647
1648                         if (ps != NULL)
1649                                 /* FIXME: cmdline should be here instead of NULL */
1650                                 ps_list_add (task_name, NULL, &pse);
1651                 } /* for (task_list) */
1652
1653                 if ((status = vm_deallocate (port_task_self,
1654                                 (vm_address_t) task_list,
1655                                 task_list_len * sizeof (task_t))) != KERN_SUCCESS)
1656                 {
1657                         ERROR ("vm_deallocate failed: %s",
1658                                         mach_error_string (status));
1659                 }
1660                 task_list = NULL;
1661                 task_list_len = 0;
1662
1663                 if ((status = mach_port_deallocate (port_task_self, port_pset_priv))
1664                                 != KERN_SUCCESS)
1665                 {
1666                         ERROR ("mach_port_deallocate failed: %s",
1667                                         mach_error_string (status));
1668                 }
1669         } /* for (pset_list) */
1670
1671         ps_submit_state ("running", running);
1672         ps_submit_state ("sleeping", sleeping);
1673         ps_submit_state ("zombies", zombies);
1674         ps_submit_state ("stopped", stopped);
1675         ps_submit_state ("blocked", blocked);
1676
1677         for (ps = list_head_g; ps != NULL; ps = ps->next)
1678                 ps_submit_proc_list (ps);
1679 /* #endif HAVE_THREAD_INFO */
1680
1681 #elif KERNEL_LINUX
1682         int running  = 0;
1683         int sleeping = 0;
1684         int zombies  = 0;
1685         int stopped  = 0;
1686         int paging   = 0;
1687         int blocked  = 0;
1688
1689         struct dirent *ent;
1690         DIR           *proc;
1691         int            pid;
1692
1693         char cmdline[CMDLINE_BUFFER_SIZE];
1694
1695         int        status;
1696         procstat_t ps;
1697         procstat_entry_t pse;
1698         char       state;
1699
1700         procstat_t *ps_ptr;
1701
1702         running = sleeping = zombies = stopped = paging = blocked = 0;
1703         ps_list_reset ();
1704
1705         if ((proc = opendir ("/proc")) == NULL)
1706         {
1707                 char errbuf[1024];
1708                 ERROR ("Cannot open `/proc': %s",
1709                                 sstrerror (errno, errbuf, sizeof (errbuf)));
1710                 return (-1);
1711         }
1712
1713         while ((ent = readdir (proc)) != NULL)
1714         {
1715                 if (!isdigit (ent->d_name[0]))
1716                         continue;
1717
1718                 if ((pid = atoi (ent->d_name)) < 1)
1719                         continue;
1720
1721                 status = ps_read_process (pid, &ps, &state);
1722                 if (status != 0)
1723                 {
1724                         DEBUG ("ps_read_process failed: %i", status);
1725                         continue;
1726                 }
1727
1728                 pse.id       = pid;
1729                 pse.age      = 0;
1730
1731                 pse.num_proc   = ps.num_proc;
1732                 pse.num_lwp    = ps.num_lwp;
1733                 pse.vmem_size  = ps.vmem_size;
1734                 pse.vmem_rss   = ps.vmem_rss;
1735                 pse.vmem_data  = ps.vmem_data;
1736                 pse.vmem_code  = ps.vmem_code;
1737                 pse.stack_size = ps.stack_size;
1738
1739                 pse.vmem_minflt = 0;
1740                 pse.vmem_minflt_counter = ps.vmem_minflt_counter;
1741                 pse.vmem_majflt = 0;
1742                 pse.vmem_majflt_counter = ps.vmem_majflt_counter;
1743
1744                 pse.cpu_user = 0;
1745                 pse.cpu_user_counter = ps.cpu_user_counter;
1746                 pse.cpu_system = 0;
1747                 pse.cpu_system_counter = ps.cpu_system_counter;
1748
1749                 pse.io_rchar = ps.io_rchar;
1750                 pse.io_wchar = ps.io_wchar;
1751                 pse.io_syscr = ps.io_syscr;
1752                 pse.io_syscw = ps.io_syscw;
1753
1754                 switch (state)
1755                 {
1756                         case 'R': running++;  break;
1757                         case 'S': sleeping++; break;
1758                         case 'D': blocked++;  break;
1759                         case 'Z': zombies++;  break;
1760                         case 'T': stopped++;  break;
1761                         case 'W': paging++;   break;
1762                 }
1763
1764                 ps_list_add (ps.name,
1765                                 ps_get_cmdline (pid, ps.name, cmdline, sizeof (cmdline)),
1766                                 &pse);
1767         }
1768
1769         closedir (proc);
1770
1771         ps_submit_state ("running",  running);
1772         ps_submit_state ("sleeping", sleeping);
1773         ps_submit_state ("zombies",  zombies);
1774         ps_submit_state ("stopped",  stopped);
1775         ps_submit_state ("paging",   paging);
1776         ps_submit_state ("blocked",  blocked);
1777
1778         for (ps_ptr = list_head_g; ps_ptr != NULL; ps_ptr = ps_ptr->next)
1779                 ps_submit_proc_list (ps_ptr);
1780
1781         read_fork_rate();
1782 /* #endif KERNEL_LINUX */
1783
1784 #elif HAVE_LIBKVM_GETPROCS && HAVE_STRUCT_KINFO_PROC_FREEBSD
1785         int running  = 0;
1786         int sleeping = 0;
1787         int zombies  = 0;
1788         int stopped  = 0;
1789         int blocked  = 0;
1790         int idle     = 0;
1791         int wait     = 0;
1792
1793         kvm_t *kd;
1794         char errbuf[_POSIX2_LINE_MAX];
1795         struct kinfo_proc *procs;          /* array of processes */
1796         struct kinfo_proc *proc_ptr = NULL;
1797         int count;                         /* returns number of processes */
1798         int i;
1799
1800         procstat_t *ps_ptr;
1801         procstat_entry_t pse;
1802
1803         ps_list_reset ();
1804
1805         /* Open the kvm interface, get a descriptor */
1806         kd = kvm_openfiles (NULL, "/dev/null", NULL, 0, errbuf);
1807         if (kd == NULL)
1808         {
1809                 ERROR ("processes plugin: Cannot open kvm interface: %s",
1810                                 errbuf);
1811                 return (0);
1812         }
1813
1814         /* Get the list of processes. */
1815         procs = kvm_getprocs(kd, KERN_PROC_ALL, 0, &count);
1816         if (procs == NULL)
1817         {
1818                 ERROR ("processes plugin: Cannot get kvm processes list: %s",
1819                                 kvm_geterr(kd));
1820                 kvm_close (kd);
1821                 return (0);
1822         }
1823
1824         /* Iterate through the processes in kinfo_proc */
1825         for (i = 0; i < count; i++)
1826         {
1827                 /* Create only one process list entry per _process_, i.e.
1828                  * filter out threads (duplicate PID entries). */
1829                 if ((proc_ptr == NULL) || (proc_ptr->ki_pid != procs[i].ki_pid))
1830                 {
1831                         char cmdline[CMDLINE_BUFFER_SIZE] = "";
1832                         _Bool have_cmdline = 0;
1833
1834                         proc_ptr = &(procs[i]);
1835                         /* Don't probe system processes and processes without arguments */
1836                         if (((procs[i].ki_flag & P_SYSTEM) == 0)
1837                                         && (procs[i].ki_args != NULL))
1838                         {
1839                                 char **argv;
1840                                 int argc;
1841                                 int status;
1842
1843                                 /* retrieve the arguments */
1844                                 argv = kvm_getargv (kd, proc_ptr, /* nchr = */ 0);
1845                                 argc = 0;
1846                                 if ((argv != NULL) && (argv[0] != NULL))
1847                                 {
1848                                         while (argv[argc] != NULL)
1849                                                 argc++;
1850
1851                                         status = strjoin (cmdline, sizeof (cmdline), argv, argc, " ");
1852                                         if (status < 0)
1853                                                 WARNING ("processes plugin: Command line did not fit into buffer.");
1854                                         else
1855                                                 have_cmdline = 1;
1856                                 }
1857                         } /* if (process has argument list) */
1858
1859                         pse.id       = procs[i].ki_pid;
1860                         pse.age      = 0;
1861
1862                         pse.num_proc = 1;
1863                         pse.num_lwp  = procs[i].ki_numthreads;
1864
1865                         pse.vmem_size = procs[i].ki_size;
1866                         pse.vmem_rss = procs[i].ki_rssize * pagesize;
1867                         pse.vmem_data = procs[i].ki_dsize * pagesize;
1868                         pse.vmem_code = procs[i].ki_tsize * pagesize;
1869                         pse.stack_size = procs[i].ki_ssize * pagesize;
1870                         pse.vmem_minflt = 0;
1871                         pse.vmem_minflt_counter = procs[i].ki_rusage.ru_minflt;
1872                         pse.vmem_majflt = 0;
1873                         pse.vmem_majflt_counter = procs[i].ki_rusage.ru_majflt;
1874
1875                         pse.cpu_user = 0;
1876                         pse.cpu_system = 0;
1877                         pse.cpu_user_counter = 0;
1878                         pse.cpu_system_counter = 0;
1879                         /*
1880                          * The u-area might be swapped out, and we can't get
1881                          * at it because we have a crashdump and no swap.
1882                          * If it's here fill in these fields, otherwise, just
1883                          * leave them 0.
1884                          */
1885                         if (procs[i].ki_flag & P_INMEM)
1886                         {
1887                                 pse.cpu_user_counter = procs[i].ki_rusage.ru_utime.tv_usec
1888                                         + (1000000lu * procs[i].ki_rusage.ru_utime.tv_sec);
1889                                 pse.cpu_system_counter = procs[i].ki_rusage.ru_stime.tv_usec
1890                                         + (1000000lu * procs[i].ki_rusage.ru_stime.tv_sec);
1891                         }
1892
1893                         /* no I/O data */
1894                         pse.io_rchar = -1;
1895                         pse.io_wchar = -1;
1896                         pse.io_syscr = -1;
1897                         pse.io_syscw = -1;
1898
1899                         ps_list_add (procs[i].ki_comm, have_cmdline ? cmdline : NULL, &pse);
1900                 } /* if ((proc_ptr == NULL) || (proc_ptr->ki_pid != procs[i].ki_pid)) */
1901
1902                 switch (procs[i].ki_stat)
1903                 {
1904                         case SSTOP:     stopped++;      break;
1905                         case SSLEEP:    sleeping++;     break;
1906                         case SRUN:      running++;      break;
1907                         case SIDL:      idle++;         break;
1908                         case SWAIT:     wait++;         break;
1909                         case SLOCK:     blocked++;      break;
1910                         case SZOMB:     zombies++;      break;
1911                 }
1912         }
1913
1914         kvm_close(kd);
1915
1916         ps_submit_state ("running",  running);
1917         ps_submit_state ("sleeping", sleeping);
1918         ps_submit_state ("zombies",  zombies);
1919         ps_submit_state ("stopped",  stopped);
1920         ps_submit_state ("blocked",  blocked);
1921         ps_submit_state ("idle",     idle);
1922         ps_submit_state ("wait",     wait);
1923
1924         for (ps_ptr = list_head_g; ps_ptr != NULL; ps_ptr = ps_ptr->next)
1925                 ps_submit_proc_list (ps_ptr);
1926 /* #endif HAVE_LIBKVM_GETPROCS && HAVE_STRUCT_KINFO_PROC_FREEBSD */
1927
1928 #elif HAVE_LIBKVM_GETPROCS && HAVE_STRUCT_KINFO_PROC_OPENBSD
1929         int running  = 0;
1930         int sleeping = 0;
1931         int zombies  = 0;
1932         int stopped  = 0;
1933         int onproc   = 0;
1934         int idle     = 0;
1935         int dead     = 0;
1936
1937         kvm_t *kd;
1938         char errbuf[1024];
1939         struct kinfo_proc *procs;          /* array of processes */
1940         struct kinfo_proc *proc_ptr = NULL;
1941         int count;                         /* returns number of processes */
1942         int i;
1943
1944         procstat_t *ps_ptr;
1945         procstat_entry_t pse;
1946
1947         ps_list_reset ();
1948
1949         /* Open the kvm interface, get a descriptor */
1950         kd = kvm_open (NULL, NULL, NULL, 0, errbuf);
1951         if (kd == NULL)
1952         {
1953                 ERROR ("processes plugin: Cannot open kvm interface: %s",
1954                                 errbuf);
1955                 return (0);
1956         }
1957
1958         /* Get the list of processes. */
1959         procs = kvm_getprocs(kd, KERN_PROC_ALL, 0, sizeof(struct kinfo_proc), &count);
1960         if (procs == NULL)
1961         {
1962                 ERROR ("processes plugin: Cannot get kvm processes list: %s",
1963                                 kvm_geterr(kd));
1964                 kvm_close (kd);
1965                 return (0);
1966         }
1967
1968         /* Iterate through the processes in kinfo_proc */
1969         for (i = 0; i < count; i++)
1970         {
1971                 /* Create only one process list entry per _process_, i.e.
1972                  * filter out threads (duplicate PID entries). */
1973                 if ((proc_ptr == NULL) || (proc_ptr->p_pid != procs[i].p_pid))
1974                 {
1975                         char cmdline[CMDLINE_BUFFER_SIZE] = "";
1976                         _Bool have_cmdline = 0;
1977
1978                         proc_ptr = &(procs[i]);
1979                         /* Don't probe zombie processes  */
1980                         if (!P_ZOMBIE(proc_ptr))
1981                         {
1982                                 char **argv;
1983                                 int argc;
1984                                 int status;
1985
1986                                 /* retrieve the arguments */
1987                                 argv = kvm_getargv (kd, proc_ptr, /* nchr = */ 0);
1988                                 argc = 0;
1989                                 if ((argv != NULL) && (argv[0] != NULL))
1990                                 {
1991                                         while (argv[argc] != NULL)
1992                                                 argc++;
1993
1994                                         status = strjoin (cmdline, sizeof (cmdline), argv, argc, " ");
1995                                         if (status < 0)
1996                                                 WARNING ("processes plugin: Command line did not fit into buffer.");
1997                                         else
1998                                                 have_cmdline = 1;
1999                                 }
2000                         } /* if (process has argument list) */
2001
2002                         pse.id       = procs[i].p_pid;
2003                         pse.age      = 0;
2004
2005                         pse.num_proc = 1;
2006                         pse.num_lwp  = 1; /* XXX: accumulate p_tid values for a single p_pid ? */
2007
2008                         pse.vmem_rss = procs[i].p_vm_rssize * pagesize;
2009                         pse.vmem_data = procs[i].p_vm_dsize * pagesize;
2010                         pse.vmem_code = procs[i].p_vm_tsize * pagesize;
2011                         pse.stack_size = procs[i].p_vm_ssize * pagesize;
2012                         pse.vmem_size = pse.stack_size + pse.vmem_code + pse.vmem_data;
2013                         pse.vmem_minflt = 0;
2014                         pse.vmem_minflt_counter = procs[i].p_uru_minflt;
2015                         pse.vmem_majflt = 0;
2016                         pse.vmem_majflt_counter = procs[i].p_uru_majflt;
2017
2018                         pse.cpu_user = 0;
2019                         pse.cpu_system = 0;
2020                         pse.cpu_user_counter = procs[i].p_uutime_usec +
2021                                                 (1000000lu * procs[i].p_uutime_sec);
2022                         pse.cpu_system_counter = procs[i].p_ustime_usec +
2023                                                 (1000000lu * procs[i].p_ustime_sec);
2024
2025                         /* no I/O data */
2026                         pse.io_rchar = -1;
2027                         pse.io_wchar = -1;
2028                         pse.io_syscr = -1;
2029                         pse.io_syscw = -1;
2030
2031                         ps_list_add (procs[i].p_comm, have_cmdline ? cmdline : NULL, &pse);
2032                 } /* if ((proc_ptr == NULL) || (proc_ptr->p_pid != procs[i].p_pid)) */
2033
2034                 switch (procs[i].p_stat)
2035                 {
2036                         case SSTOP:     stopped++;      break;
2037                         case SSLEEP:    sleeping++;     break;
2038                         case SRUN:      running++;      break;
2039                         case SIDL:      idle++;         break;
2040                         case SONPROC:   onproc++;       break;
2041                         case SDEAD:     dead++;         break;
2042                         case SZOMB:     zombies++;      break;
2043                 }
2044         }
2045
2046         kvm_close(kd);
2047
2048         ps_submit_state ("running",  running);
2049         ps_submit_state ("sleeping", sleeping);
2050         ps_submit_state ("zombies",  zombies);
2051         ps_submit_state ("stopped",  stopped);
2052         ps_submit_state ("onproc",   onproc);
2053         ps_submit_state ("idle",     idle);
2054         ps_submit_state ("dead",     dead);
2055
2056         for (ps_ptr = list_head_g; ps_ptr != NULL; ps_ptr = ps_ptr->next)
2057                 ps_submit_proc_list (ps_ptr);
2058 /* #endif HAVE_LIBKVM_GETPROCS && HAVE_STRUCT_KINFO_PROC_OPENBSD */
2059
2060 #elif HAVE_PROCINFO_H
2061         /* AIX */
2062         int running  = 0;
2063         int sleeping = 0;
2064         int zombies  = 0;
2065         int stopped  = 0;
2066         int paging   = 0;
2067         int blocked  = 0;
2068
2069         pid_t pindex = 0;
2070         int nprocs;
2071
2072         procstat_t *ps;
2073         procstat_entry_t pse;
2074
2075         ps_list_reset ();
2076         while ((nprocs = getprocs64 (procentry, sizeof(struct procentry64),
2077                                         /* fdsinfo = */ NULL, sizeof(struct fdsinfo64),
2078                                         &pindex, MAXPROCENTRY)) > 0)
2079         {
2080                 int i;
2081
2082                 for (i = 0; i < nprocs; i++)
2083                 {
2084                         tid64_t thindex;
2085                         int nthreads;
2086                         char arglist[MAXARGLN+1];
2087                         char *cargs;
2088                         char *cmdline;
2089
2090                         if (procentry[i].pi_state == SNONE) continue;
2091                         /* if (procentry[i].pi_state == SZOMB)  FIXME */
2092
2093                         cmdline = procentry[i].pi_comm;
2094                         cargs = procentry[i].pi_comm;
2095                         if ( procentry[i].pi_flags & SKPROC )
2096                         {
2097                                 if (procentry[i].pi_pid == 0)
2098                                         cmdline = "swapper";
2099                                 cargs = cmdline;
2100                         }
2101                         else
2102                         {
2103                                 if (getargs(&procentry[i], sizeof(struct procentry64), arglist, MAXARGLN) >= 0)
2104                                 {
2105                                         int n;
2106
2107                                         n = -1;
2108                                         while (++n < MAXARGLN)
2109                                         {
2110                                                 if (arglist[n] == '\0')
2111                                                 {
2112                                                         if (arglist[n+1] == '\0')
2113                                                                 break;
2114                                                         arglist[n] = ' ';
2115                                                 }
2116                                         }
2117                                         cargs = arglist;
2118                                 }
2119                         }
2120
2121                         pse.id       = procentry[i].pi_pid;
2122                         pse.age      = 0;
2123                         pse.num_lwp  = procentry[i].pi_thcount;
2124                         pse.num_proc = 1;
2125
2126                         thindex=0;
2127                         while ((nthreads = getthrds64(procentry[i].pi_pid,
2128                                                         thrdentry, sizeof(struct thrdentry64),
2129                                                         &thindex, MAXTHRDENTRY)) > 0)
2130                         {
2131                                 int j;
2132
2133                                 for (j=0; j< nthreads; j++)
2134                                 {
2135                                         switch (thrdentry[j].ti_state)
2136                                         {
2137                                                 /* case TSNONE: break; */
2138                                                 case TSIDL:     blocked++;      break; /* FIXME is really blocked */
2139                                                 case TSRUN:     running++;      break;
2140                                                 case TSSLEEP:   sleeping++;     break;
2141                                                 case TSSWAP:    paging++;       break;
2142                                                 case TSSTOP:    stopped++;      break;
2143                                                 case TSZOMB:    zombies++;      break;
2144                                         }
2145                                 }
2146                                 if (nthreads < MAXTHRDENTRY)
2147                                         break;
2148                         }
2149
2150                         pse.cpu_user = 0;
2151                         /* tv_usec is nanosec ??? */
2152                         pse.cpu_user_counter = procentry[i].pi_ru.ru_utime.tv_sec * 1000000 +
2153                                 procentry[i].pi_ru.ru_utime.tv_usec / 1000;
2154
2155                         pse.cpu_system = 0;
2156                         /* tv_usec is nanosec ??? */
2157                         pse.cpu_system_counter = procentry[i].pi_ru.ru_stime.tv_sec * 1000000 +
2158                                 procentry[i].pi_ru.ru_stime.tv_usec / 1000;
2159
2160                         pse.vmem_minflt = 0;
2161                         pse.vmem_minflt_counter = procentry[i].pi_minflt;
2162                         pse.vmem_majflt = 0;
2163                         pse.vmem_majflt_counter = procentry[i].pi_majflt;
2164
2165                         pse.vmem_size = procentry[i].pi_tsize + procentry[i].pi_dvm * pagesize;
2166                         pse.vmem_rss = (procentry[i].pi_drss + procentry[i].pi_trss) * pagesize;
2167                         /* Not supported */
2168                         pse.vmem_data = 0;
2169                         pse.vmem_code = 0;
2170                         pse.stack_size =  0;
2171
2172                         pse.io_rchar = -1;
2173                         pse.io_wchar = -1;
2174                         pse.io_syscr = -1;
2175                         pse.io_syscw = -1;
2176
2177                         ps_list_add (cmdline, cargs, &pse);
2178                 } /* for (i = 0 .. nprocs) */
2179
2180                 if (nprocs < MAXPROCENTRY)
2181                         break;
2182         } /* while (getprocs64() > 0) */
2183         ps_submit_state ("running",  running);
2184         ps_submit_state ("sleeping", sleeping);
2185         ps_submit_state ("zombies",  zombies);
2186         ps_submit_state ("stopped",  stopped);
2187         ps_submit_state ("paging",   paging);
2188         ps_submit_state ("blocked",  blocked);
2189
2190         for (ps = list_head_g; ps != NULL; ps = ps->next)
2191                 ps_submit_proc_list (ps);
2192 /* #endif HAVE_PROCINFO_H */
2193
2194 #elif KERNEL_SOLARIS
2195         /*
2196          * The Solaris section adds a few more process states and removes some
2197          * process states compared to linux. Most notably there is no "PAGING"
2198          * and "BLOCKED" state for a process.  The rest is similar to the linux
2199          * code.
2200          */
2201         int running = 0;
2202         int sleeping = 0;
2203         int zombies = 0;
2204         int stopped = 0;
2205         int detached = 0;
2206         int daemon = 0;
2207         int system = 0;
2208         int orphan = 0;
2209
2210         struct dirent *ent;
2211         DIR *proc;
2212
2213         int status;
2214         procstat_t *ps_ptr;
2215         char state;
2216
2217         char cmdline[PRARGSZ];
2218
2219         ps_list_reset ();
2220
2221         proc = opendir ("/proc");
2222         if (proc == NULL)
2223                 return (-1);
2224
2225         while ((ent = readdir(proc)) != NULL)
2226         {
2227                 int pid;
2228                 struct procstat ps;
2229                 procstat_entry_t pse;
2230
2231                 if (!isdigit ((int) ent->d_name[0]))
2232                         continue;
2233
2234                 if ((pid = atoi (ent->d_name)) < 1)
2235                         continue;
2236
2237                 status = ps_read_process (pid, &ps, &state);
2238                 if (status != 0)
2239                 {
2240                         DEBUG("ps_read_process failed: %i", status);
2241                         continue;
2242                 }
2243
2244                 pse.id = pid;
2245                 pse.age = 0;
2246
2247                 pse.num_proc   = ps.num_proc;
2248                 pse.num_lwp    = ps.num_lwp;
2249                 pse.vmem_size  = ps.vmem_size;
2250                 pse.vmem_rss   = ps.vmem_rss;
2251                 pse.vmem_data  = ps.vmem_data;
2252                 pse.vmem_code  = ps.vmem_code;
2253                 pse.stack_size = ps.stack_size;
2254
2255                 pse.vmem_minflt = 0;
2256                 pse.vmem_minflt_counter = ps.vmem_minflt_counter;
2257                 pse.vmem_majflt = 0;
2258                 pse.vmem_majflt_counter = ps.vmem_majflt_counter;
2259
2260                 pse.cpu_user = 0;
2261                 pse.cpu_user_counter = ps.cpu_user_counter;
2262                 pse.cpu_system = 0;
2263                 pse.cpu_system_counter = ps.cpu_system_counter;
2264
2265                 pse.io_rchar = ps.io_rchar;
2266                 pse.io_wchar = ps.io_wchar;
2267                 pse.io_syscr = ps.io_syscr;
2268                 pse.io_syscw = ps.io_syscw;
2269
2270                 switch (state)
2271                 {
2272                         case 'R': running++;  break;
2273                         case 'S': sleeping++; break;
2274                         case 'E': detached++; break;
2275                         case 'Z': zombies++;  break;
2276                         case 'T': stopped++;  break;
2277                         case 'A': daemon++;   break;
2278                         case 'Y': system++;   break;
2279                         case 'O': orphan++;   break;
2280                 }
2281
2282
2283                 ps_list_add (ps.name,
2284                                 ps_get_cmdline ((pid_t) pid,
2285                                         cmdline, sizeof (cmdline)),
2286                                 &pse);
2287         } /* while(readdir) */
2288         closedir (proc);
2289
2290         ps_submit_state ("running",  running);
2291         ps_submit_state ("sleeping", sleeping);
2292         ps_submit_state ("zombies",  zombies);
2293         ps_submit_state ("stopped",  stopped);
2294         ps_submit_state ("detached", detached);
2295         ps_submit_state ("daemon",   daemon);
2296         ps_submit_state ("system",   system);
2297         ps_submit_state ("orphan",   orphan);
2298
2299         for (ps_ptr = list_head_g; ps_ptr != NULL; ps_ptr = ps_ptr->next)
2300                 ps_submit_proc_list (ps_ptr);
2301
2302         read_fork_rate();
2303 #endif /* KERNEL_SOLARIS */
2304
2305         return (0);
2306 } /* int ps_read */
2307
2308 void module_register (void)
2309 {
2310         plugin_register_complex_config ("processes", ps_config);
2311         plugin_register_init ("processes", ps_init);
2312         plugin_register_read ("processes", ps_read);
2313 } /* void module_register */