src/processes.c

   1 /**
   2  * collectd - src/processes.c
   3  * Copyright (C) 2005       Lyonel Vincent
   4  * Copyright (C) 2006-2010  Florian octo Forster
   5  * Copyright (C) 2008       Oleg King
   6  * Copyright (C) 2009       Sebastian Harl
   7  * Copyright (C) 2009       Andrés J. Díaz
   8  * Copyright (C) 2009       Manuel Sanmartin
   9  * Copyright (C) 2010       Clément Stenac
  10  * Copyright (C) 2012       Cosmin Ioiart
  11  *
  12  * This program is free software; you can redistribute it and/or modify it
  13  * under the terms of the GNU General Public License as published by the
  14  * Free Software Foundation; either version 2 of the License, or (at your
  15  * option) any later version.
  16  *
  17  * This program is distributed in the hope that it will be useful, but
  18  * WITHOUT ANY WARRANTY; without even the implied warranty of
  19  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  20  * General Public License for more details.
  21  *
  22  * You should have received a copy of the GNU General Public License along
  23  * with this program; if not, write to the Free Software Foundation, Inc.,
  24  * 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
  25  *
  26  * Authors:
  27  *   Lyonel Vincent <lyonel at ezix.org>
  28  *   Florian octo Forster <octo at collectd.org>
  29  *   Oleg King <king2 at kaluga.ru>
  30  *   Sebastian Harl <sh at tokkee.org>
  31  *   Andrés J. Díaz <ajdiaz at connectical.com>
  32  *   Manuel Sanmartin
  33  *   Clément Stenac <clement.stenac at diwi.org>
  34  *   Cosmin Ioiart <cioiart at gmail.com>
  35  **/
  36
  37 #include "collectd.h"
  38 #include "common.h"
  39 #include "plugin.h"
  40 #include "configfile.h"
  41
  42 /* Include header files for the mach system, if they exist.. */
  43 #if HAVE_THREAD_INFO
  44 #  if HAVE_MACH_MACH_INIT_H
  45 #    include <mach/mach_init.h>
  46 #  endif
  47 #  if HAVE_MACH_HOST_PRIV_H
  48 #    include <mach/host_priv.h>
  49 #  endif
  50 #  if HAVE_MACH_MACH_ERROR_H
  51 #    include <mach/mach_error.h>
  52 #  endif
  53 #  if HAVE_MACH_MACH_HOST_H
  54 #    include <mach/mach_host.h>
  55 #  endif
  56 #  if HAVE_MACH_MACH_PORT_H
  57 #    include <mach/mach_port.h>
  58 #  endif
  59 #  if HAVE_MACH_MACH_TYPES_H
  60 #    include <mach/mach_types.h>
  61 #  endif
  62 #  if HAVE_MACH_MESSAGE_H
  63 #    include <mach/message.h>
  64 #  endif
  65 #  if HAVE_MACH_PROCESSOR_SET_H
  66 #    include <mach/processor_set.h>
  67 #  endif
  68 #  if HAVE_MACH_TASK_H
  69 #    include <mach/task.h>
  70 #  endif
  71 #  if HAVE_MACH_THREAD_ACT_H
  72 #    include <mach/thread_act.h>
  73 #  endif
  74 #  if HAVE_MACH_VM_REGION_H
  75 #    include <mach/vm_region.h>
  76 #  endif
  77 #  if HAVE_MACH_VM_MAP_H
  78 #    include <mach/vm_map.h>
  79 #  endif
  80 #  if HAVE_MACH_VM_PROT_H
  81 #    include <mach/vm_prot.h>
  82 #  endif
  83 #  if HAVE_SYS_SYSCTL_H
  84 #    include <sys/sysctl.h>
  85 #  endif
  86 /* #endif HAVE_THREAD_INFO */
  87
  88 #elif KERNEL_LINUX
  89 #  if HAVE_LINUX_CONFIG_H
  90 #    include <linux/config.h>
  91 #  endif
  92 #  ifndef CONFIG_HZ
  93 #    define CONFIG_HZ 100
  94 #  endif
  95 /* #endif KERNEL_LINUX */
  96
  97 #elif HAVE_LIBKVM_GETPROCS && (HAVE_STRUCT_KINFO_PROC_FREEBSD || HAVE_STRUCT_KINFO_PROC_OPENBSD)
  98 #  include <kvm.h>
  99 #  include <sys/param.h>
 100 #  include <sys/sysctl.h>
 101 #  include <sys/user.h>
 102 #  include <sys/proc.h>
 103 /* #endif HAVE_LIBKVM_GETPROCS && (HAVE_STRUCT_KINFO_PROC_FREEBSD || HAVE_STRUCT_KINFO_PROC_OPENBSD) */
 104
 105 #elif HAVE_PROCINFO_H
 106 #  include <procinfo.h>
 107 #  include <sys/types.h>
 108
 109 #define MAXPROCENTRY 32
 110 #define MAXTHRDENTRY 16
 111 #define MAXARGLN 1024
 112 /* #endif HAVE_PROCINFO_H */
 113
 114 #elif KERNEL_SOLARIS
 115 /* Hack: Avoid #error when building a 32-bit binary with
 116  * _FILE_OFFSET_BITS=64. There is a reason for this #error, as one
 117  * of the structures in <sys/procfs.h> uses an off_t, but that
 118  * isn't relevant to our usage of procfs. */
 119 #if !defined(_LP64) && _FILE_OFFSET_BITS == 64
 120 #  define SAVE_FOB_64
 121 #  undef _FILE_OFFSET_BITS
 122 #endif
 123
 124 # include <procfs.h>
 125
 126 #ifdef SAVE_FOB_64
 127 #  define _FILE_OFFSET_BITS 64
 128 #  undef SAVE_FOB_64
 129 #endif
 130
 131 # include <dirent.h>
 132 /* #endif KERNEL_SOLARIS */
 133
 134 #else
 135 # error "No applicable input method."
 136 #endif
 137
 138 #if HAVE_REGEX_H
 139 # include <regex.h>
 140 #endif
 141
 142 #if HAVE_KSTAT_H
 143 # include <kstat.h>
 144 #endif
 145
 146 #ifndef CMDLINE_BUFFER_SIZE
 147 # if defined(ARG_MAX) && (ARG_MAX < 4096)
 148 #  define CMDLINE_BUFFER_SIZE ARG_MAX
 149 # else
 150 #  define CMDLINE_BUFFER_SIZE 4096
 151 # endif
 152 #endif
 153
 154 typedef struct procstat_entry_s
 155 {
 156         unsigned long id;
 157         unsigned long age;
 158
 159         unsigned long num_proc;
 160         unsigned long num_lwp;
 161         unsigned long vmem_size;
 162         unsigned long vmem_rss;
 163         unsigned long vmem_data;
 164         unsigned long vmem_code;
 165         unsigned long stack_size;
 166
 167         unsigned long vmem_minflt;
 168         unsigned long vmem_majflt;
 169         derive_t      vmem_minflt_counter;
 170         derive_t      vmem_majflt_counter;
 171
 172         unsigned long cpu_user;
 173         unsigned long cpu_system;
 174         derive_t      cpu_user_counter;
 175         derive_t      cpu_system_counter;
 176
 177         /* io data */
 178         derive_t io_rchar;
 179         derive_t io_wchar;
 180         derive_t io_syscr;
 181         derive_t io_syscw;
 182
 183         struct procstat_entry_s *next;
 184 } procstat_entry_t;
 185
 186 #define PROCSTAT_NAME_LEN 256
 187 typedef struct procstat
 188 {
 189         char          name[PROCSTAT_NAME_LEN];
 190 #if HAVE_REGEX_H
 191         regex_t *re;
 192 #endif
 193
 194         unsigned long num_proc;
 195         unsigned long num_lwp;
 196         unsigned long vmem_size;
 197         unsigned long vmem_rss;
 198         unsigned long vmem_data;
 199         unsigned long vmem_code;
 200         unsigned long stack_size;
 201
 202         derive_t vmem_minflt_counter;
 203         derive_t vmem_majflt_counter;
 204
 205         derive_t cpu_user_counter;
 206         derive_t cpu_system_counter;
 207
 208         /* io data */
 209         derive_t io_rchar;
 210         derive_t io_wchar;
 211         derive_t io_syscr;
 212         derive_t io_syscw;
 213
 214         struct procstat   *next;
 215         struct procstat_entry_s *instances;
 216 } procstat_t;
 217
 218 static procstat_t *list_head_g = NULL;
 219
 220 #if HAVE_THREAD_INFO
 221 static mach_port_t port_host_self;
 222 static mach_port_t port_task_self;
 223
 224 static processor_set_name_array_t pset_list;
 225 static mach_msg_type_number_t     pset_list_len;
 226 /* #endif HAVE_THREAD_INFO */
 227
 228 #elif KERNEL_LINUX
 229 static long pagesize_g;
 230 /* #endif KERNEL_LINUX */
 231
 232 #elif HAVE_LIBKVM_GETPROCS && (HAVE_STRUCT_KINFO_PROC_FREEBSD || HAVE_STRUCT_KINFO_PROC_OPENBSD)
 233 static int pagesize;
 234 /* #endif HAVE_LIBKVM_GETPROCS && (HAVE_STRUCT_KINFO_PROC_FREEBSD || HAVE_STRUCT_KINFO_PROC_OPENBSD) */
 235
 236 #elif HAVE_PROCINFO_H
 237 static  struct procentry64 procentry[MAXPROCENTRY];
 238 static  struct thrdentry64 thrdentry[MAXTHRDENTRY];
 239 static int pagesize;
 240
 241 #ifndef _AIXVERSION_610
 242 int     getprocs64 (void *procsinfo, int sizproc, void *fdsinfo, int sizfd, pid_t *index, int count);
 243 int     getthrds64( pid_t, void *, int, tid64_t *, int );
 244 #endif
 245 int getargs (void *processBuffer, int bufferLen, char *argsBuffer, int argsLen);
 246 #endif /* HAVE_PROCINFO_H */
 247
 248 /* put name of process from config to list_head_g tree
 249  * list_head_g is a list of 'procstat_t' structs with
 250  * processes names we want to watch */
 251 static void ps_list_register (const char *name, const char *regexp)
 252 {
 253         procstat_t *new;
 254         procstat_t *ptr;
 255         int status;
 256
 257         new = (procstat_t *) malloc (sizeof (procstat_t));
 258         if (new == NULL)
 259         {
 260                 ERROR ("processes plugin: ps_list_register: malloc failed.");
 261                 return;
 262         }
 263         memset (new, 0, sizeof (procstat_t));
 264         sstrncpy (new->name, name, sizeof (new->name));
 265
 266 #if HAVE_REGEX_H
 267         if (regexp != NULL)
 268         {
 269                 DEBUG ("ProcessMatch: adding \"%s\" as criteria to process %s.", regexp, name);
 270                 new->re = (regex_t *) malloc (sizeof (regex_t));
 271                 if (new->re == NULL)
 272                 {
 273                         ERROR ("processes plugin: ps_list_register: malloc failed.");
 274                         sfree (new);
 275                         return;
 276                 }
 277
 278                 status = regcomp (new->re, regexp, REG_EXTENDED | REG_NOSUB);
 279                 if (status != 0)
 280                 {
 281                         DEBUG ("ProcessMatch: compiling the regular expression \"%s\" failed.", regexp);
 282                         sfree(new->re);
 283                         sfree(new);
 284                         return;
 285                 }
 286         }
 287 #else
 288         if (regexp != NULL)
 289         {
 290                 ERROR ("processes plugin: ps_list_register: "
 291                                 "Regular expression \"%s\" found in config "
 292                                 "file, but support for regular expressions "
 293                                 "has been disabled at compile time.",
 294                                 regexp);
 295                 sfree (new);
 296                 return;
 297         }
 298 #endif
 299
 300         for (ptr = list_head_g; ptr != NULL; ptr = ptr->next)
 301         {
 302                 if (strcmp (ptr->name, name) == 0)
 303                 {
 304                         WARNING ("processes plugin: You have configured more "
 305                                         "than one `Process' or "
 306                                         "`ProcessMatch' with the same name. "
 307                                         "All but the first setting will be "
 308                                         "ignored.");
 309 #if HAVE_REGEX_H
 310                         sfree (new->re);
 311 #endif
 312                         sfree (new);
 313                         return;
 314                 }
 315
 316                 if (ptr->next == NULL)
 317                         break;
 318         }
 319
 320         if (ptr == NULL)
 321                 list_head_g = new;
 322         else
 323                 ptr->next = new;
 324 } /* void ps_list_register */
 325
 326 /* try to match name against entry, returns 1 if success */
 327 static int ps_list_match (const char *name, const char *cmdline, procstat_t *ps)
 328 {
 329 #if HAVE_REGEX_H
 330         if (ps->re != NULL)
 331         {
 332                 int status;
 333                 const char *str;
 334
 335                 str = cmdline;
 336                 if ((str == NULL) || (str[0] == 0))
 337                         str = name;
 338
 339                 assert (str != NULL);
 340
 341                 status = regexec (ps->re, str,
 342                                 /* nmatch = */ 0,
 343                                 /* pmatch = */ NULL,
 344                                 /* eflags = */ 0);
 345                 if (status == 0)
 346                         return (1);
 347         }
 348         else
 349 #endif
 350         if (strcmp (ps->name, name) == 0)
 351                 return (1);
 352
 353         return (0);
 354 } /* int ps_list_match */
 355
 356 /* add process entry to 'instances' of process 'name' (or refresh it) */
 357 static void ps_list_add (const char *name, const char *cmdline, procstat_entry_t *entry)
 358 {
 359         procstat_t *ps;
 360         procstat_entry_t *pse;
 361
 362         if (entry->id == 0)
 363                 return;
 364
 365         for (ps = list_head_g; ps != NULL; ps = ps->next)
 366         {
 367                 if ((ps_list_match (name, cmdline, ps)) == 0)
 368                         continue;
 369
 370                 for (pse = ps->instances; pse != NULL; pse = pse->next)
 371                         if ((pse->id == entry->id) || (pse->next == NULL))
 372                                 break;
 373
 374                 if ((pse == NULL) || (pse->id != entry->id))
 375                 {
 376                         procstat_entry_t *new;
 377
 378                         new = (procstat_entry_t *) malloc (sizeof (procstat_entry_t));
 379                         if (new == NULL)
 380                                 return;
 381                         memset (new, 0, sizeof (procstat_entry_t));
 382                         new->id = entry->id;
 383
 384                         if (pse == NULL)
 385                                 ps->instances = new;
 386                         else
 387                                 pse->next = new;
 388
 389                         pse = new;
 390                 }
 391
 392                 pse->age = 0;
 393                 pse->num_proc   = entry->num_proc;
 394                 pse->num_lwp    = entry->num_lwp;
 395                 pse->vmem_size  = entry->vmem_size;
 396                 pse->vmem_rss   = entry->vmem_rss;
 397                 pse->vmem_data  = entry->vmem_data;
 398                 pse->vmem_code  = entry->vmem_code;
 399                 pse->stack_size = entry->stack_size;
 400                 pse->io_rchar   = entry->io_rchar;
 401                 pse->io_wchar   = entry->io_wchar;
 402                 pse->io_syscr   = entry->io_syscr;
 403                 pse->io_syscw   = entry->io_syscw;
 404
 405                 ps->num_proc   += pse->num_proc;
 406                 ps->num_lwp    += pse->num_lwp;
 407                 ps->vmem_size  += pse->vmem_size;
 408                 ps->vmem_rss   += pse->vmem_rss;
 409                 ps->vmem_data  += pse->vmem_data;
 410                 ps->vmem_code  += pse->vmem_code;
 411                 ps->stack_size += pse->stack_size;
 412
 413                 ps->io_rchar   += ((pse->io_rchar == -1)?0:pse->io_rchar);
 414                 ps->io_wchar   += ((pse->io_wchar == -1)?0:pse->io_wchar);
 415                 ps->io_syscr   += ((pse->io_syscr == -1)?0:pse->io_syscr);
 416                 ps->io_syscw   += ((pse->io_syscw == -1)?0:pse->io_syscw);
 417
 418                 if ((entry->vmem_minflt_counter == 0)
 419                                 && (entry->vmem_majflt_counter == 0))
 420                 {
 421                         pse->vmem_minflt_counter += entry->vmem_minflt;
 422                         pse->vmem_minflt = entry->vmem_minflt;
 423
 424                         pse->vmem_majflt_counter += entry->vmem_majflt;
 425                         pse->vmem_majflt = entry->vmem_majflt;
 426                 }
 427                 else
 428                 {
 429                         if (entry->vmem_minflt_counter < pse->vmem_minflt_counter)
 430                         {
 431                                 pse->vmem_minflt = entry->vmem_minflt_counter
 432                                         + (ULONG_MAX - pse->vmem_minflt_counter);
 433                         }
 434                         else
 435                         {
 436                                 pse->vmem_minflt = entry->vmem_minflt_counter - pse->vmem_minflt_counter;
 437                         }
 438                         pse->vmem_minflt_counter = entry->vmem_minflt_counter;
 439
 440                         if (entry->vmem_majflt_counter < pse->vmem_majflt_counter)
 441                         {
 442                                 pse->vmem_majflt = entry->vmem_majflt_counter
 443                                         + (ULONG_MAX - pse->vmem_majflt_counter);
 444                         }
 445                         else
 446                         {
 447                                 pse->vmem_majflt = entry->vmem_majflt_counter - pse->vmem_majflt_counter;
 448                         }
 449                         pse->vmem_majflt_counter = entry->vmem_majflt_counter;
 450                 }
 451
 452                 ps->vmem_minflt_counter += pse->vmem_minflt;
 453                 ps->vmem_majflt_counter += pse->vmem_majflt;
 454
 455                 if ((entry->cpu_user_counter == 0)
 456                                 && (entry->cpu_system_counter == 0))
 457                 {
 458                         pse->cpu_user_counter += entry->cpu_user;
 459                         pse->cpu_user = entry->cpu_user;
 460
 461                         pse->cpu_system_counter += entry->cpu_system;
 462                         pse->cpu_system = entry->cpu_system;
 463                 }
 464                 else
 465                 {
 466                         if (entry->cpu_user_counter < pse->cpu_user_counter)
 467                         {
 468                                 pse->cpu_user = entry->cpu_user_counter
 469                                         + (ULONG_MAX - pse->cpu_user_counter);
 470                         }
 471                         else
 472                         {
 473                                 pse->cpu_user = entry->cpu_user_counter - pse->cpu_user_counter;
 474                         }
 475                         pse->cpu_user_counter = entry->cpu_user_counter;
 476
 477                         if (entry->cpu_system_counter < pse->cpu_system_counter)
 478                         {
 479                                 pse->cpu_system = entry->cpu_system_counter
 480                                         + (ULONG_MAX - pse->cpu_system_counter);
 481                         }
 482                         else
 483                         {
 484                                 pse->cpu_system = entry->cpu_system_counter - pse->cpu_system_counter;
 485                         }
 486                         pse->cpu_system_counter = entry->cpu_system_counter;
 487                 }
 488
 489                 ps->cpu_user_counter   += pse->cpu_user;
 490                 ps->cpu_system_counter += pse->cpu_system;
 491         }
 492 }
 493
 494 /* remove old entries from instances of processes in list_head_g */
 495 static void ps_list_reset (void)
 496 {
 497         procstat_t *ps;
 498         procstat_entry_t *pse;
 499         procstat_entry_t *pse_prev;
 500
 501         for (ps = list_head_g; ps != NULL; ps = ps->next)
 502         {
 503                 ps->num_proc    = 0;
 504                 ps->num_lwp     = 0;
 505                 ps->vmem_size   = 0;
 506                 ps->vmem_rss    = 0;
 507                 ps->vmem_data   = 0;
 508                 ps->vmem_code   = 0;
 509                 ps->stack_size  = 0;
 510                 ps->io_rchar = -1;
 511                 ps->io_wchar = -1;
 512                 ps->io_syscr = -1;
 513                 ps->io_syscw = -1;
 514
 515                 pse_prev = NULL;
 516                 pse = ps->instances;
 517                 while (pse != NULL)
 518                 {
 519                         if (pse->age > 10)
 520                         {
 521                                 DEBUG ("Removing this procstat entry cause it's too old: "
 522                                                 "id = %lu; name = %s;",
 523                                                 pse->id, ps->name);
 524
 525                                 if (pse_prev == NULL)
 526                                 {
 527                                         ps->instances = pse->next;
 528                                         free (pse);
 529                                         pse = ps->instances;
 530                                 }
 531                                 else
 532                                 {
 533                                         pse_prev->next = pse->next;
 534                                         free (pse);
 535                                         pse = pse_prev->next;
 536                                 }
 537                         }
 538                         else
 539                         {
 540                                 pse->age++;
 541                                 pse_prev = pse;
 542                                 pse = pse->next;
 543                         }
 544                 } /* while (pse != NULL) */
 545         } /* for (ps = list_head_g; ps != NULL; ps = ps->next) */
 546 }
 547
 548 /* put all pre-defined 'Process' names from config to list_head_g tree */
 549 static int ps_config (oconfig_item_t *ci)
 550 {
 551         int i;
 552
 553         for (i = 0; i < ci->children_num; ++i) {
 554                 oconfig_item_t *c = ci->children + i;
 555
 556                 if (strcasecmp (c->key, "Process") == 0)
 557                 {
 558                         if ((c->values_num != 1)
 559                                         || (OCONFIG_TYPE_STRING != c->values[0].type)) {
 560                                 ERROR ("processes plugin: `Process' expects exactly "
 561                                                 "one string argument (got %i).",
 562                                                 c->values_num);
 563                                 continue;
 564                         }
 565
 566                         if (c->children_num != 0) {
 567                                 WARNING ("processes plugin: the `Process' config option "
 568                                                 "does not expect any child elements -- ignoring "
 569                                                 "content (%i elements) of the <Process '%s'> block.",
 570                                                 c->children_num, c->values[0].value.string);
 571                         }
 572
 573                         ps_list_register (c->values[0].value.string, NULL);
 574                 }
 575                 else if (strcasecmp (c->key, "ProcessMatch") == 0)
 576                 {
 577                         if ((c->values_num != 2)
 578                                         || (OCONFIG_TYPE_STRING != c->values[0].type)
 579                                         || (OCONFIG_TYPE_STRING != c->values[1].type))
 580                         {
 581                                 ERROR ("processes plugin: `ProcessMatch' needs exactly "
 582                                                 "two string arguments (got %i).",
 583                                                 c->values_num);
 584                                 continue;
 585                         }
 586
 587                         if (c->children_num != 0) {
 588                                 WARNING ("processes plugin: the `ProcessMatch' config option "
 589                                                 "does not expect any child elements -- ignoring "
 590                                                 "content (%i elements) of the <ProcessMatch '%s' '%s'> "
 591                                                 "block.", c->children_num, c->values[0].value.string,
 592                                                 c->values[1].value.string);
 593                         }
 594
 595                         ps_list_register (c->values[0].value.string,
 596                                         c->values[1].value.string);
 597                 }
 598                 else
 599                 {
 600                         ERROR ("processes plugin: The `%s' configuration option is not "
 601                                         "understood and will be ignored.", c->key);
 602                         continue;
 603                 }
 604         }
 605
 606         return (0);
 607 }
 608
 609 static int ps_init (void)
 610 {
 611 #if HAVE_THREAD_INFO
 612         kern_return_t status;
 613
 614         port_host_self = mach_host_self ();
 615         port_task_self = mach_task_self ();
 616
 617         if (pset_list != NULL)
 618         {
 619                 vm_deallocate (port_task_self,
 620                                 (vm_address_t) pset_list,
 621                                 pset_list_len * sizeof (processor_set_t));
 622                 pset_list = NULL;
 623                 pset_list_len = 0;
 624         }
 625
 626         if ((status = host_processor_sets (port_host_self,
 627                                         &pset_list,
 628                                         &pset_list_len)) != KERN_SUCCESS)
 629         {
 630                 ERROR ("host_processor_sets failed: %s\n",
 631                                 mach_error_string (status));
 632                 pset_list = NULL;
 633                 pset_list_len = 0;
 634                 return (-1);
 635         }
 636 /* #endif HAVE_THREAD_INFO */
 637
 638 #elif KERNEL_LINUX
 639         pagesize_g = sysconf(_SC_PAGESIZE);
 640         DEBUG ("pagesize_g = %li; CONFIG_HZ = %i;",
 641                         pagesize_g, CONFIG_HZ);
 642 /* #endif KERNEL_LINUX */
 643
 644 #elif HAVE_LIBKVM_GETPROCS && (HAVE_STRUCT_KINFO_PROC_FREEBSD || HAVE_STRUCT_KINFO_PROC_OPENBSD)
 645         pagesize = getpagesize();
 646 /* #endif HAVE_LIBKVM_GETPROCS && (HAVE_STRUCT_KINFO_PROC_FREEBSD || HAVE_STRUCT_KINFO_PROC_OPENBSD) */
 647
 648 #elif HAVE_PROCINFO_H
 649         pagesize = getpagesize();
 650 #endif /* HAVE_PROCINFO_H */
 651
 652         return (0);
 653 } /* int ps_init */
 654
 655 /* submit global state (e.g.: qty of zombies, running, etc..) */
 656 static void ps_submit_state (const char *state, double value)
 657 {
 658         value_t values[1];
 659         value_list_t vl = VALUE_LIST_INIT;
 660
 661         values[0].gauge = value;
 662
 663         vl.values = values;
 664         vl.values_len = 1;
 665         sstrncpy (vl.host, hostname_g, sizeof (vl.host));
 666         sstrncpy (vl.plugin, "processes", sizeof (vl.plugin));
 667         sstrncpy (vl.plugin_instance, "", sizeof (vl.plugin_instance));
 668         sstrncpy (vl.type, "ps_state", sizeof (vl.type));
 669         sstrncpy (vl.type_instance, state, sizeof (vl.type_instance));
 670
 671         plugin_dispatch_values (&vl);
 672 }
 673
 674 /* submit info about specific process (e.g.: memory taken, cpu usage, etc..) */
 675 static void ps_submit_proc_list (procstat_t *ps)
 676 {
 677         value_t values[2];
 678         value_list_t vl = VALUE_LIST_INIT;
 679
 680         vl.values = values;
 681         vl.values_len = 2;
 682         sstrncpy (vl.host, hostname_g, sizeof (vl.host));
 683         sstrncpy (vl.plugin, "processes", sizeof (vl.plugin));
 684         sstrncpy (vl.plugin_instance, ps->name, sizeof (vl.plugin_instance));
 685
 686         sstrncpy (vl.type, "ps_vm", sizeof (vl.type));
 687         vl.values[0].gauge = ps->vmem_size;
 688         vl.values_len = 1;
 689         plugin_dispatch_values (&vl);
 690
 691         sstrncpy (vl.type, "ps_rss", sizeof (vl.type));
 692         vl.values[0].gauge = ps->vmem_rss;
 693         vl.values_len = 1;
 694         plugin_dispatch_values (&vl);
 695
 696         sstrncpy (vl.type, "ps_data", sizeof (vl.type));
 697         vl.values[0].gauge = ps->vmem_data;
 698         vl.values_len = 1;
 699         plugin_dispatch_values (&vl);
 700
 701         sstrncpy (vl.type, "ps_code", sizeof (vl.type));
 702         vl.values[0].gauge = ps->vmem_code;
 703         vl.values_len = 1;
 704         plugin_dispatch_values (&vl);
 705
 706         sstrncpy (vl.type, "ps_stacksize", sizeof (vl.type));
 707         vl.values[0].gauge = ps->stack_size;
 708         vl.values_len = 1;
 709         plugin_dispatch_values (&vl);
 710
 711         sstrncpy (vl.type, "ps_cputime", sizeof (vl.type));
 712         vl.values[0].derive = ps->cpu_user_counter;
 713         vl.values[1].derive = ps->cpu_system_counter;
 714         vl.values_len = 2;
 715         plugin_dispatch_values (&vl);
 716
 717         sstrncpy (vl.type, "ps_count", sizeof (vl.type));
 718         vl.values[0].gauge = ps->num_proc;
 719         vl.values[1].gauge = ps->num_lwp;
 720         vl.values_len = 2;
 721         plugin_dispatch_values (&vl);
 722
 723         sstrncpy (vl.type, "ps_pagefaults", sizeof (vl.type));
 724         vl.values[0].derive = ps->vmem_minflt_counter;
 725         vl.values[1].derive = ps->vmem_majflt_counter;
 726         vl.values_len = 2;
 727         plugin_dispatch_values (&vl);
 728
 729         if ( (ps->io_rchar != -1) && (ps->io_wchar != -1) )
 730         {
 731                 sstrncpy (vl.type, "ps_disk_octets", sizeof (vl.type));
 732                 vl.values[0].derive = ps->io_rchar;
 733                 vl.values[1].derive = ps->io_wchar;
 734                 vl.values_len = 2;
 735                 plugin_dispatch_values (&vl);
 736         }
 737
 738         if ( (ps->io_syscr != -1) && (ps->io_syscw != -1) )
 739         {
 740                 sstrncpy (vl.type, "ps_disk_ops", sizeof (vl.type));
 741                 vl.values[0].derive = ps->io_syscr;
 742                 vl.values[1].derive = ps->io_syscw;
 743                 vl.values_len = 2;
 744                 plugin_dispatch_values (&vl);
 745         }
 746
 747         DEBUG ("name = %s; num_proc = %lu; num_lwp = %lu; "
 748                         "vmem_size = %lu; vmem_rss = %lu; vmem_data = %lu; "
 749                         "vmem_code = %lu; "
 750                         "vmem_minflt_counter = %"PRIi64"; vmem_majflt_counter = %"PRIi64"; "
 751                         "cpu_user_counter = %"PRIi64"; cpu_system_counter = %"PRIi64"; "
 752                         "io_rchar = %"PRIi64"; io_wchar = %"PRIi64"; "
 753                         "io_syscr = %"PRIi64"; io_syscw = %"PRIi64";",
 754                         ps->name, ps->num_proc, ps->num_lwp,
 755                         ps->vmem_size, ps->vmem_rss,
 756                         ps->vmem_data, ps->vmem_code,
 757                         ps->vmem_minflt_counter, ps->vmem_majflt_counter,
 758                         ps->cpu_user_counter, ps->cpu_system_counter,
 759                         ps->io_rchar, ps->io_wchar, ps->io_syscr, ps->io_syscw);
 760 } /* void ps_submit_proc_list */
 761
 762 #if KERNEL_LINUX || KERNEL_SOLARIS
 763 static void ps_submit_fork_rate (derive_t value)
 764 {
 765         value_t values[1];
 766         value_list_t vl = VALUE_LIST_INIT;
 767
 768         values[0].derive = value;
 769
 770         vl.values = values;
 771         vl.values_len = 1;
 772         sstrncpy(vl.host, hostname_g, sizeof (vl.host));
 773         sstrncpy(vl.plugin, "processes", sizeof (vl.plugin));
 774         sstrncpy(vl.plugin_instance, "", sizeof (vl.plugin_instance));
 775         sstrncpy(vl.type, "fork_rate", sizeof (vl.type));
 776         sstrncpy(vl.type_instance, "", sizeof (vl.type_instance));
 777
 778         plugin_dispatch_values(&vl);
 779 }
 780 #endif /* KERNEL_LINUX || KERNEL_SOLARIS*/
 781
 782 /* ------- additional functions for KERNEL_LINUX/HAVE_THREAD_INFO ------- */
 783 #if KERNEL_LINUX
 784 static int ps_read_tasks (long pid)
 785 {
 786         char           dirname[64];
 787         DIR           *dh;
 788         struct dirent *ent;
 789         int count = 0;
 790
 791         ssnprintf (dirname, sizeof (dirname), "/proc/%li/task", pid);
 792
 793         if ((dh = opendir (dirname)) == NULL)
 794         {
 795                 DEBUG ("Failed to open directory `%s'", dirname);
 796                 return (-1);
 797         }
 798
 799         while ((ent = readdir (dh)) != NULL)
 800         {
 801                 if (!isdigit ((int) ent->d_name[0]))
 802                         continue;
 803                 else
 804                         count++;
 805         }
 806         closedir (dh);
 807
 808         return ((count >= 1) ? count : 1);
 809 } /* int *ps_read_tasks */
 810
 811 /* Read advanced virtual memory data from /proc/pid/status */
 812 static procstat_t *ps_read_vmem (long pid, procstat_t *ps)
 813 {
 814         FILE *fh;
 815         char buffer[1024];
 816         char filename[64];
 817         unsigned long long lib = 0;
 818         unsigned long long exe = 0;
 819         unsigned long long data = 0;
 820         char *fields[8];
 821         int numfields;
 822
 823         ssnprintf (filename, sizeof (filename), "/proc/%li/status", pid);
 824         if ((fh = fopen (filename, "r")) == NULL)
 825                 return (NULL);
 826
 827         while (fgets (buffer, sizeof(buffer), fh) != NULL)
 828         {
 829                 long long tmp;
 830                 char *endptr;
 831
 832                 if (strncmp (buffer, "Vm", 2) != 0)
 833                         continue;
 834
 835                 numfields = strsplit (buffer, fields,
 836                                 STATIC_ARRAY_SIZE (fields));
 837
 838                 if (numfields < 2)
 839                         continue;
 840
 841                 errno = 0;
 842                 endptr = NULL;
 843                 tmp = strtoll (fields[1], &endptr, /* base = */ 10);
 844                 if ((errno == 0) && (endptr != fields[1]))
 845                 {
 846                         if (strncmp (buffer, "VmData", 6) == 0)
 847                         {
 848                                 data = tmp;
 849                         }
 850                         else if (strncmp (buffer, "VmLib", 5) == 0)
 851                         {
 852                                 lib = tmp;
 853                         }
 854                         else if  (strncmp(buffer, "VmExe", 5) == 0)
 855                         {
 856                                 exe = tmp;
 857                         }
 858                 }
 859         } /* while (fgets) */
 860
 861         if (fclose (fh))
 862         {
 863                 char errbuf[1024];
 864                 WARNING ("processes: fclose: %s",
 865                                 sstrerror (errno, errbuf, sizeof (errbuf)));
 866         }
 867
 868         ps->vmem_data = data * 1024;
 869         ps->vmem_code = (exe + lib) * 1024;
 870
 871         return (ps);
 872 } /* procstat_t *ps_read_vmem */
 873
 874 static procstat_t *ps_read_io (long pid, procstat_t *ps)
 875 {
 876         FILE *fh;
 877         char buffer[1024];
 878         char filename[64];
 879
 880         char *fields[8];
 881         int numfields;
 882
 883         ssnprintf (filename, sizeof (filename), "/proc/%li/io", pid);
 884         if ((fh = fopen (filename, "r")) == NULL)
 885                 return (NULL);
 886
 887         while (fgets (buffer, sizeof (buffer), fh) != NULL)
 888         {
 889                 derive_t *val = NULL;
 890                 long long tmp;
 891                 char *endptr;
 892
 893                 if (strncasecmp (buffer, "rchar:", 6) == 0)
 894                         val = &(ps->io_rchar);
 895                 else if (strncasecmp (buffer, "wchar:", 6) == 0)
 896                         val = &(ps->io_wchar);
 897                 else if (strncasecmp (buffer, "syscr:", 6) == 0)
 898                         val = &(ps->io_syscr);
 899                 else if (strncasecmp (buffer, "syscw:", 6) == 0)
 900                         val = &(ps->io_syscw);
 901                 else
 902                         continue;
 903
 904                 numfields = strsplit (buffer, fields,
 905                                 STATIC_ARRAY_SIZE (fields));
 906
 907                 if (numfields < 2)
 908                         continue;
 909
 910                 errno = 0;
 911                 endptr = NULL;
 912                 tmp = strtoll (fields[1], &endptr, /* base = */ 10);
 913                 if ((errno != 0) || (endptr == fields[1]))
 914                         *val = -1;
 915                 else
 916                         *val = (derive_t) tmp;
 917         } /* while (fgets) */
 918
 919         if (fclose (fh))
 920         {
 921                 char errbuf[1024];
 922                 WARNING ("processes: fclose: %s",
 923                                 sstrerror (errno, errbuf, sizeof (errbuf)));
 924         }
 925
 926         return (ps);
 927 } /* procstat_t *ps_read_io */
 928
 929 static int ps_read_process (long pid, procstat_t *ps, char *state)
 930 {
 931         char  filename[64];
 932         char  buffer[1024];
 933
 934         char *fields[64];
 935         char  fields_len;
 936
 937         int   buffer_len;
 938
 939         char *buffer_ptr;
 940         size_t name_start_pos;
 941         size_t name_end_pos;
 942         size_t name_len;
 943
 944         derive_t cpu_user_counter;
 945         derive_t cpu_system_counter;
 946         long long unsigned vmem_size;
 947         long long unsigned vmem_rss;
 948         long long unsigned stack_size;
 949
 950         memset (ps, 0, sizeof (procstat_t));
 951
 952         ssnprintf (filename, sizeof (filename), "/proc/%li/stat", pid);
 953
 954         buffer_len = read_file_contents (filename,
 955                         buffer, sizeof(buffer) - 1);
 956         if (buffer_len <= 0)
 957                 return (-1);
 958         buffer[buffer_len] = 0;
 959
 960         /* The name of the process is enclosed in parens. Since the name can
 961          * contain parens itself, spaces, numbers and pretty much everything
 962          * else, use these to determine the process name. We don't use
 963          * strchr(3) and strrchr(3) to avoid pointer arithmetic which would
 964          * otherwise be required to determine name_len. */
 965         name_start_pos = 0;
 966         while ((buffer[name_start_pos] != '(')
 967                         && (name_start_pos < buffer_len))
 968                 name_start_pos++;
 969
 970         name_end_pos = buffer_len;
 971         while ((buffer[name_end_pos] != ')')
 972                         && (name_end_pos > 0))
 973                 name_end_pos--;
 974
 975         /* Either '(' or ')' is not found or they are in the wrong order.
 976          * Anyway, something weird that shouldn't happen ever. */
 977         if (name_start_pos >= name_end_pos)
 978         {
 979                 ERROR ("processes plugin: name_start_pos = %zu >= name_end_pos = %zu",
 980                                 name_start_pos, name_end_pos);
 981                 return (-1);
 982         }
 983
 984         name_len = (name_end_pos - name_start_pos) - 1;
 985         if (name_len >= sizeof (ps->name))
 986                 name_len = sizeof (ps->name) - 1;
 987
 988         sstrncpy (ps->name, &buffer[name_start_pos + 1], name_len + 1);
 989
 990         if ((buffer_len - name_end_pos) < 2)
 991                 return (-1);
 992         buffer_ptr = &buffer[name_end_pos + 2];
 993
 994         fields_len = strsplit (buffer_ptr, fields, STATIC_ARRAY_SIZE (fields));
 995         if (fields_len < 22)
 996         {
 997                 DEBUG ("processes plugin: ps_read_process (pid = %li):"
 998                                 " `%s' has only %i fields..",
 999                                 pid, filename, fields_len);
1000                 return (-1);
1001         }
1002
1003         *state = fields[0][0];
1004
1005         if (*state == 'Z')
1006         {
1007                 ps->num_lwp  = 0;
1008                 ps->num_proc = 0;
1009         }
1010         else
1011         {
1012                 if ( (ps->num_lwp = ps_read_tasks (pid)) == -1 )
1013                 {
1014                         /* returns -1 => kernel 2.4 */
1015                         ps->num_lwp = 1;
1016                 }
1017                 ps->num_proc = 1;
1018         }
1019
1020         /* Leave the rest at zero if this is only a zombi */
1021         if (ps->num_proc == 0)
1022         {
1023                 DEBUG ("processes plugin: This is only a zombie: pid = %li; "
1024                                 "name = %s;", pid, ps->name);
1025                 return (0);
1026         }
1027
1028         cpu_user_counter   = atoll (fields[11]);
1029         cpu_system_counter = atoll (fields[12]);
1030         vmem_size          = atoll (fields[20]);
1031         vmem_rss           = atoll (fields[21]);
1032         ps->vmem_minflt_counter = atol (fields[7]);
1033         ps->vmem_majflt_counter = atol (fields[9]);
1034
1035         {
1036                 unsigned long long stack_start = atoll (fields[25]);
1037                 unsigned long long stack_ptr   = atoll (fields[26]);
1038
1039                 stack_size = (stack_start > stack_ptr)
1040                         ? stack_start - stack_ptr
1041                         : stack_ptr - stack_start;
1042         }
1043
1044         /* Convert jiffies to useconds */
1045         cpu_user_counter   = cpu_user_counter   * 1000000 / CONFIG_HZ;
1046         cpu_system_counter = cpu_system_counter * 1000000 / CONFIG_HZ;
1047         vmem_rss = vmem_rss * pagesize_g;
1048
1049         if ( (ps_read_vmem(pid, ps)) == NULL)
1050         {
1051                 /* No VMem data */
1052                 ps->vmem_data = -1;
1053                 ps->vmem_code = -1;
1054                 DEBUG("ps_read_process: did not get vmem data for pid %li", pid);
1055         }
1056
1057         ps->cpu_user_counter = cpu_user_counter;
1058         ps->cpu_system_counter = cpu_system_counter;
1059         ps->vmem_size = (unsigned long) vmem_size;
1060         ps->vmem_rss = (unsigned long) vmem_rss;
1061         ps->stack_size = (unsigned long) stack_size;
1062
1063         if ( (ps_read_io (pid, ps)) == NULL)
1064         {
1065                 /* no io data */
1066                 ps->io_rchar = -1;
1067                 ps->io_wchar = -1;
1068                 ps->io_syscr = -1;
1069                 ps->io_syscw = -1;
1070
1071                 DEBUG("ps_read_process: not get io data for pid %li", pid);
1072         }
1073
1074         /* success */
1075         return (0);
1076 } /* int ps_read_process (...) */
1077
1078 static char *ps_get_cmdline (long pid, char *name, char *buf, size_t buf_len)
1079 {
1080         char  *buf_ptr;
1081         size_t len;
1082
1083         char file[PATH_MAX];
1084         int  fd;
1085
1086         size_t n;
1087
1088         if ((pid < 1) || (NULL == buf) || (buf_len < 2))
1089                 return NULL;
1090
1091         ssnprintf (file, sizeof (file), "/proc/%li/cmdline", pid);
1092
1093         errno = 0;
1094         fd = open (file, O_RDONLY);
1095         if (fd < 0) {
1096                 char errbuf[4096];
1097                 /* ENOENT means the process exited while we were handling it.
1098                  * Don't complain about this, it only fills the logs. */
1099                 if (errno != ENOENT)
1100                         WARNING ("processes plugin: Failed to open `%s': %s.", file,
1101                                         sstrerror (errno, errbuf, sizeof (errbuf)));
1102                 return NULL;
1103         }
1104
1105         buf_ptr = buf;
1106         len     = buf_len;
1107
1108         n = 0;
1109
1110         while (42) {
1111                 ssize_t status;
1112
1113                 status = read (fd, (void *)buf_ptr, len);
1114
1115                 if (status < 0) {
1116                         char errbuf[1024];
1117
1118                         if ((EAGAIN == errno) || (EINTR == errno))
1119                                 continue;
1120
1121                         WARNING ("processes plugin: Failed to read from `%s': %s.", file,
1122                                         sstrerror (errno, errbuf, sizeof (errbuf)));
1123                         close (fd);
1124                         return NULL;
1125                 }
1126
1127                 n += status;
1128
1129                 if (status == 0)
1130                         break;
1131
1132                 buf_ptr += status;
1133                 len     -= status;
1134
1135                 if (len <= 0)
1136                         break;
1137         }
1138
1139         close (fd);
1140
1141         if (0 == n) {
1142                 /* cmdline not available; e.g. kernel thread, zombie */
1143                 if (NULL == name)
1144                         return NULL;
1145
1146                 ssnprintf (buf, buf_len, "[%s]", name);
1147                 return buf;
1148         }
1149
1150         assert (n <= buf_len);
1151
1152         if (n == buf_len)
1153                 --n;
1154         buf[n] = '\0';
1155
1156         --n;
1157         /* remove trailing whitespace */
1158         while ((n > 0) && (isspace (buf[n]) || ('\0' == buf[n]))) {
1159                 buf[n] = '\0';
1160                 --n;
1161         }
1162
1163         /* arguments are separated by '\0' in /proc/<pid>/cmdline */
1164         while (n > 0) {
1165                 if ('\0' == buf[n])
1166                         buf[n] = ' ';
1167                 --n;
1168         }
1169         return buf;
1170 } /* char *ps_get_cmdline (...) */
1171
1172 static int read_fork_rate (void)
1173 {
1174         FILE *proc_stat;
1175         char buffer[1024];
1176         value_t value;
1177         _Bool value_valid = 0;
1178
1179         proc_stat = fopen ("/proc/stat", "r");
1180         if (proc_stat == NULL)
1181         {
1182                 char errbuf[1024];
1183                 ERROR ("processes plugin: fopen (/proc/stat) failed: %s",
1184                                 sstrerror (errno, errbuf, sizeof (errbuf)));
1185                 return (-1);
1186         }
1187
1188         while (fgets (buffer, sizeof (buffer), proc_stat) != NULL)
1189         {
1190                 int status;
1191                 char *fields[3];
1192                 int fields_num;
1193
1194                 fields_num = strsplit (buffer, fields,
1195                                 STATIC_ARRAY_SIZE (fields));
1196                 if (fields_num != 2)
1197                         continue;
1198
1199                 if (strcmp ("processes", fields[0]) != 0)
1200                         continue;
1201
1202                 status = parse_value (fields[1], &value, DS_TYPE_DERIVE);
1203                 if (status == 0)
1204                         value_valid = 1;
1205
1206                 break;
1207         }
1208         fclose(proc_stat);
1209
1210         if (!value_valid)
1211                 return (-1);
1212
1213         ps_submit_fork_rate (value.derive);
1214         return (0);
1215 }
1216 #endif /*KERNEL_LINUX */
1217
1218 #if KERNEL_SOLARIS
1219 static char *ps_get_cmdline (long pid, char *name __attribute__((unused)), /* {{{ */
1220     char *buffer, size_t buffer_size)
1221 {
1222         char path[PATH_MAX];
1223         psinfo_t info;
1224         int status;
1225
1226         snprintf(path, sizeof (path), "/proc/%li/psinfo", pid);
1227
1228         status = read_file_contents (path, (void *) &info, sizeof (info));
1229         if (status != sizeof (info))
1230         {
1231                 ERROR ("processes plugin: Unexpected return value "
1232                                 "while reading \"%s\": "
1233                                 "Returned %i but expected %zu.",
1234                                 path, status, buffer_size);
1235                 return (NULL);
1236         }
1237
1238         info.pr_psargs[sizeof (info.pr_psargs) - 1] = 0;
1239         sstrncpy (buffer, info.pr_psargs, buffer_size);
1240
1241         return (buffer);
1242 } /* }}} int ps_get_cmdline */
1243
1244 /*
1245  * Reads process information on the Solaris OS. The information comes mainly from
1246  * /proc/PID/status, /proc/PID/psinfo and /proc/PID/usage
1247  * The values for input and ouput chars are calculated "by hand"
1248  * Added a few "solaris" specific process states as well
1249  */
1250 static int ps_read_process(long pid, procstat_t *ps, char *state)
1251 {
1252         char filename[64];
1253         char f_psinfo[64], f_usage[64];
1254         char *buffer;
1255
1256         pstatus_t *myStatus;
1257         psinfo_t *myInfo;
1258         prusage_t *myUsage;
1259
1260         snprintf(filename, sizeof (filename), "/proc/%li/status", pid);
1261         snprintf(f_psinfo, sizeof (f_psinfo), "/proc/%li/psinfo", pid);
1262         snprintf(f_usage, sizeof (f_usage), "/proc/%li/usage", pid);
1263
1264
1265         buffer = malloc(sizeof (pstatus_t));
1266         memset(buffer, 0, sizeof (pstatus_t));
1267         read_file_contents(filename, buffer, sizeof (pstatus_t));
1268         myStatus = (pstatus_t *) buffer;
1269
1270         buffer = malloc(sizeof (psinfo_t));
1271         memset(buffer, 0, sizeof(psinfo_t));
1272         read_file_contents(f_psinfo, buffer, sizeof (psinfo_t));
1273         myInfo = (psinfo_t *) buffer;
1274
1275         buffer = malloc(sizeof (prusage_t));
1276         memset(buffer, 0, sizeof(prusage_t));
1277         read_file_contents(f_usage, buffer, sizeof (prusage_t));
1278         myUsage = (prusage_t *) buffer;
1279
1280         sstrncpy(ps->name, myInfo->pr_fname, sizeof (myInfo->pr_fname));
1281         ps->num_lwp = myStatus->pr_nlwp;
1282         if (myInfo->pr_wstat != 0) {
1283                 ps->num_proc = 0;
1284                 ps->num_lwp = 0;
1285                 *state = (char) 'Z';
1286                 return (0);
1287         } else {
1288                 ps->num_proc = 1;
1289                 ps->num_lwp = myInfo->pr_nlwp;
1290         }
1291
1292         /*
1293          * Convert system time and user time from nanoseconds to microseconds
1294          * for compatibility with the linux module
1295          */
1296         ps->cpu_system_counter = myStatus -> pr_stime.tv_nsec / 1000;
1297         ps->cpu_user_counter = myStatus -> pr_utime.tv_nsec / 1000;
1298
1299         /*
1300          * Convert rssize from KB to bytes to be consistent w/ the linux module
1301          */
1302         ps->vmem_rss = myInfo->pr_rssize * 1024;
1303         ps->vmem_size = myInfo->pr_size * 1024;
1304         ps->vmem_minflt_counter = myUsage->pr_minf;
1305         ps->vmem_majflt_counter = myUsage->pr_majf;
1306
1307         /*
1308          * TODO: Data and code segment calculations for Solaris
1309          */
1310
1311         ps->vmem_data = -1;
1312         ps->vmem_code = -1;
1313         ps->stack_size = myStatus->pr_stksize;
1314
1315         /*
1316          * Calculating input/ouput chars
1317          * Formula used is total chars / total blocks => chars/block
1318          * then convert input/output blocks to chars
1319          */
1320         ulong_t tot_chars = myUsage->pr_ioch;
1321         ulong_t tot_blocks = myUsage->pr_inblk + myUsage->pr_oublk;
1322         ulong_t chars_per_block = 1;
1323         if (tot_blocks != 0)
1324                 chars_per_block = tot_chars / tot_blocks;
1325         ps->io_rchar = myUsage->pr_inblk * chars_per_block;
1326         ps->io_wchar = myUsage->pr_oublk * chars_per_block;
1327         ps->io_syscr = myUsage->pr_sysc;
1328         ps->io_syscw = myUsage->pr_sysc;
1329
1330
1331         /*
1332          * TODO: Find way of setting BLOCKED and PAGING status
1333          */
1334
1335         *state = (char) 'R';
1336         if (myStatus->pr_flags & PR_ASLEEP)
1337                 *state = (char) 'S';
1338         else if (myStatus->pr_flags & PR_STOPPED)
1339                 *state = (char) 'T';
1340         else if (myStatus->pr_flags & PR_DETACH)
1341                 *state = (char) 'E';
1342         else if (myStatus->pr_flags & PR_DAEMON)
1343                 *state = (char) 'A';
1344         else if (myStatus->pr_flags & PR_ISSYS)
1345                 *state = (char) 'Y';
1346         else if (myStatus->pr_flags & PR_ORPHAN)
1347                 *state = (char) 'O';
1348
1349         sfree(myStatus);
1350         sfree(myInfo);
1351         sfree(myUsage);
1352
1353         return (0);
1354 }
1355
1356 /*
1357  * Reads the number of threads created since the last reboot. On Solaris these
1358  * are retrieved from kstat (module cpu, name sys, class misc, stat nthreads).
1359  * The result is the sum for all the threads created on each cpu
1360  */
1361 static int read_fork_rate()
1362 {
1363         extern kstat_ctl_t *kc;
1364         kstat_t *ksp_chain = NULL;
1365         derive_t result = 0;
1366
1367         if (kc == NULL)
1368                 return (-1);
1369
1370         for (ksp_chain = kc->kc_chain;
1371                         ksp_chain != NULL;
1372                         ksp_chain = ksp_chain->ks_next)
1373         {
1374                 if ((strcmp (ksp_chain->ks_module, "cpu") == 0)
1375                                 && (strcmp (ksp_chain->ks_name, "sys") == 0)
1376                                 && (strcmp (ksp_chain->ks_class, "misc") == 0))
1377                 {
1378                         long long tmp;
1379
1380                         kstat_read (kc, ksp_chain, NULL);
1381
1382                         tmp = get_kstat_value(ksp_chain, "nthreads");
1383                         if (tmp != -1LL)
1384                                 result += tmp;
1385                 }
1386         }
1387
1388         ps_submit_fork_rate (result);
1389         return (0);
1390 }
1391 #endif /* KERNEL_SOLARIS */
1392
1393 #if HAVE_THREAD_INFO
1394 static int mach_get_task_name (task_t t, int *pid, char *name, size_t name_max_len)
1395 {
1396         int mib[4];
1397
1398         struct kinfo_proc kp;
1399         size_t            kp_size;
1400
1401         mib[0] = CTL_KERN;
1402         mib[1] = KERN_PROC;
1403         mib[2] = KERN_PROC_PID;
1404
1405         if (pid_for_task (t, pid) != KERN_SUCCESS)
1406                 return (-1);
1407         mib[3] = *pid;
1408
1409         kp_size = sizeof (kp);
1410         if (sysctl (mib, 4, &kp, &kp_size, NULL, 0) != 0)
1411                 return (-1);
1412
1413         if (name_max_len > (MAXCOMLEN + 1))
1414                 name_max_len = MAXCOMLEN + 1;
1415
1416         strncpy (name, kp.kp_proc.p_comm, name_max_len - 1);
1417         name[name_max_len - 1] = '\0';
1418
1419         DEBUG ("pid = %i; name = %s;", *pid, name);
1420
1421         /* We don't do the special handling for `p_comm == "LaunchCFMApp"' as
1422          * `top' does it, because it is a lot of work and only used when
1423          * debugging. -octo */
1424
1425         return (0);
1426 }
1427 #endif /* HAVE_THREAD_INFO */
1428 /* ------- end of additional functions for KERNEL_LINUX/HAVE_THREAD_INFO ------- */
1429
1430 /* do actual readings from kernel */
1431 static int ps_read (void)
1432 {
1433 #if HAVE_THREAD_INFO
1434         kern_return_t            status;
1435
1436         int                      pset;
1437         processor_set_t          port_pset_priv;
1438
1439         int                      task;
1440         task_array_t             task_list;
1441         mach_msg_type_number_t   task_list_len;
1442
1443         int                      task_pid;
1444         char                     task_name[MAXCOMLEN + 1];
1445
1446         int                      thread;
1447         thread_act_array_t       thread_list;
1448         mach_msg_type_number_t   thread_list_len;
1449         thread_basic_info_data_t thread_data;
1450         mach_msg_type_number_t   thread_data_len;
1451
1452         int running  = 0;
1453         int sleeping = 0;
1454         int zombies  = 0;
1455         int stopped  = 0;
1456         int blocked  = 0;
1457
1458         procstat_t *ps;
1459         procstat_entry_t pse;
1460
1461         ps_list_reset ();
1462
1463         /*
1464          * The Mach-concept is a little different from the traditional UNIX
1465          * concept: All the work is done in threads. Threads are contained in
1466          * `tasks'. Therefore, `task status' doesn't make much sense, since
1467          * it's actually a `thread status'.
1468          * Tasks are assigned to sets of processors, so that's where you go to
1469          * get a list.
1470          */
1471         for (pset = 0; pset < pset_list_len; pset++)
1472         {
1473                 if ((status = host_processor_set_priv (port_host_self,
1474                                                 pset_list[pset],
1475                                                 &port_pset_priv)) != KERN_SUCCESS)
1476                 {
1477                         ERROR ("host_processor_set_priv failed: %s\n",
1478                                         mach_error_string (status));
1479                         continue;
1480                 }
1481
1482                 if ((status = processor_set_tasks (port_pset_priv,
1483                                                 &task_list,
1484                                                 &task_list_len)) != KERN_SUCCESS)
1485                 {
1486                         ERROR ("processor_set_tasks failed: %s\n",
1487                                         mach_error_string (status));
1488                         mach_port_deallocate (port_task_self, port_pset_priv);
1489                         continue;
1490                 }
1491
1492                 for (task = 0; task < task_list_len; task++)
1493                 {
1494                         ps = NULL;
1495                         if (mach_get_task_name (task_list[task],
1496                                                 &task_pid,
1497                                                 task_name, PROCSTAT_NAME_LEN) == 0)
1498                         {
1499                                 /* search for at least one match */
1500                                 for (ps = list_head_g; ps != NULL; ps = ps->next)
1501                                         /* FIXME: cmdline should be here instead of NULL */
1502                                         if (ps_list_match (task_name, NULL, ps) == 1)
1503                                                 break;
1504                         }
1505
1506                         /* Collect more detailed statistics for this process */
1507                         if (ps != NULL)
1508                         {
1509                                 task_basic_info_data_t        task_basic_info;
1510                                 mach_msg_type_number_t        task_basic_info_len;
1511                                 task_events_info_data_t       task_events_info;
1512                                 mach_msg_type_number_t        task_events_info_len;
1513                                 task_absolutetime_info_data_t task_absolutetime_info;
1514                                 mach_msg_type_number_t        task_absolutetime_info_len;
1515
1516                                 memset (&pse, '\0', sizeof (pse));
1517                                 pse.id = task_pid;
1518
1519                                 task_basic_info_len = TASK_BASIC_INFO_COUNT;
1520                                 status = task_info (task_list[task],
1521                                                 TASK_BASIC_INFO,
1522                                                 (task_info_t) &task_basic_info,
1523                                                 &task_basic_info_len);
1524                                 if (status != KERN_SUCCESS)
1525                                 {
1526                                         ERROR ("task_info failed: %s",
1527                                                         mach_error_string (status));
1528                                         continue; /* with next thread_list */
1529                                 }
1530
1531                                 task_events_info_len = TASK_EVENTS_INFO_COUNT;
1532                                 status = task_info (task_list[task],
1533                                                 TASK_EVENTS_INFO,
1534                                                 (task_info_t) &task_events_info,
1535                                                 &task_events_info_len);
1536                                 if (status != KERN_SUCCESS)
1537                                 {
1538                                         ERROR ("task_info failed: %s",
1539                                                         mach_error_string (status));
1540                                         continue; /* with next thread_list */
1541                                 }
1542
1543                                 task_absolutetime_info_len = TASK_ABSOLUTETIME_INFO_COUNT;
1544                                 status = task_info (task_list[task],
1545                                                 TASK_ABSOLUTETIME_INFO,
1546                                                 (task_info_t) &task_absolutetime_info,
1547                                                 &task_absolutetime_info_len);
1548                                 if (status != KERN_SUCCESS)
1549                                 {
1550                                         ERROR ("task_info failed: %s",
1551                                                         mach_error_string (status));
1552                                         continue; /* with next thread_list */
1553                                 }
1554
1555                                 pse.num_proc++;
1556                                 pse.vmem_size = task_basic_info.virtual_size;
1557                                 pse.vmem_rss = task_basic_info.resident_size;
1558                                 /* Does not seem to be easily exposed */
1559                                 pse.vmem_data = 0;
1560                                 pse.vmem_code = 0;
1561
1562                                 pse.vmem_minflt_counter = task_events_info.cow_faults;
1563                                 pse.vmem_majflt_counter = task_events_info.faults;
1564
1565                                 pse.cpu_user_counter = task_absolutetime_info.total_user;
1566                                 pse.cpu_system_counter = task_absolutetime_info.total_system;
1567                         }
1568
1569                         status = task_threads (task_list[task], &thread_list,
1570                                         &thread_list_len);
1571                         if (status != KERN_SUCCESS)
1572                         {
1573                                 /* Apple's `top' treats this case a zombie. It
1574                                  * makes sense to some extend: A `zombie'
1575                                  * thread is nonsense, since the task/process
1576                                  * is dead. */
1577                                 zombies++;
1578                                 DEBUG ("task_threads failed: %s",
1579                                                 mach_error_string (status));
1580                                 if (task_list[task] != port_task_self)
1581                                         mach_port_deallocate (port_task_self,
1582                                                         task_list[task]);
1583                                 continue; /* with next task_list */
1584                         }
1585
1586                         for (thread = 0; thread < thread_list_len; thread++)
1587                         {
1588                                 thread_data_len = THREAD_BASIC_INFO_COUNT;
1589                                 status = thread_info (thread_list[thread],
1590                                                 THREAD_BASIC_INFO,
1591                                                 (thread_info_t) &thread_data,
1592                                                 &thread_data_len);
1593                                 if (status != KERN_SUCCESS)
1594                                 {
1595                                         ERROR ("thread_info failed: %s",
1596                                                         mach_error_string (status));
1597                                         if (task_list[task] != port_task_self)
1598                                                 mach_port_deallocate (port_task_self,
1599                                                                 thread_list[thread]);
1600                                         continue; /* with next thread_list */
1601                                 }
1602
1603                                 if (ps != NULL)
1604                                         pse.num_lwp++;
1605
1606                                 switch (thread_data.run_state)
1607                                 {
1608                                         case TH_STATE_RUNNING:
1609                                                 running++;
1610                                                 break;
1611                                         case TH_STATE_STOPPED:
1612                                         /* What exactly is `halted'? */
1613                                         case TH_STATE_HALTED:
1614                                                 stopped++;
1615                                                 break;
1616                                         case TH_STATE_WAITING:
1617                                                 sleeping++;
1618                                                 break;
1619                                         case TH_STATE_UNINTERRUPTIBLE:
1620                                                 blocked++;
1621                                                 break;
1622                                         /* There is no `zombie' case here,
1623                                          * since there are no zombie-threads.
1624                                          * There's only zombie tasks, which are
1625                                          * handled above. */
1626                                         default:
1627                                                 WARNING ("Unknown thread status: %i",
1628                                                                 thread_data.run_state);
1629                                                 break;
1630                                 } /* switch (thread_data.run_state) */
1631
1632                                 if (task_list[task] != port_task_self)
1633                                 {
1634                                         status = mach_port_deallocate (port_task_self,
1635                                                         thread_list[thread]);
1636                                         if (status != KERN_SUCCESS)
1637                                                 ERROR ("mach_port_deallocate failed: %s",
1638                                                                 mach_error_string (status));
1639                                 }
1640                         } /* for (thread_list) */
1641
1642                         if ((status = vm_deallocate (port_task_self,
1643                                                         (vm_address_t) thread_list,
1644                                                         thread_list_len * sizeof (thread_act_t)))
1645                                         != KERN_SUCCESS)
1646                         {
1647                                 ERROR ("vm_deallocate failed: %s",
1648                                                 mach_error_string (status));
1649                         }
1650                         thread_list = NULL;
1651                         thread_list_len = 0;
1652
1653                         /* Only deallocate the task port, if it isn't our own.
1654                          * Don't know what would happen in that case, but this
1655                          * is what Apple's top does.. ;) */
1656                         if (task_list[task] != port_task_self)
1657                         {
1658                                 status = mach_port_deallocate (port_task_self,
1659                                                 task_list[task]);
1660                                 if (status != KERN_SUCCESS)
1661                                         ERROR ("mach_port_deallocate failed: %s",
1662                                                         mach_error_string (status));
1663                         }
1664
1665                         if (ps != NULL)
1666                                 /* FIXME: cmdline should be here instead of NULL */
1667                                 ps_list_add (task_name, NULL, &pse);
1668                 } /* for (task_list) */
1669
1670                 if ((status = vm_deallocate (port_task_self,
1671                                 (vm_address_t) task_list,
1672                                 task_list_len * sizeof (task_t))) != KERN_SUCCESS)
1673                 {
1674                         ERROR ("vm_deallocate failed: %s",
1675                                         mach_error_string (status));
1676                 }
1677                 task_list = NULL;
1678                 task_list_len = 0;
1679
1680                 if ((status = mach_port_deallocate (port_task_self, port_pset_priv))
1681                                 != KERN_SUCCESS)
1682                 {
1683                         ERROR ("mach_port_deallocate failed: %s",
1684                                         mach_error_string (status));
1685                 }
1686         } /* for (pset_list) */
1687
1688         ps_submit_state ("running", running);
1689         ps_submit_state ("sleeping", sleeping);
1690         ps_submit_state ("zombies", zombies);
1691         ps_submit_state ("stopped", stopped);
1692         ps_submit_state ("blocked", blocked);
1693
1694         for (ps = list_head_g; ps != NULL; ps = ps->next)
1695                 ps_submit_proc_list (ps);
1696 /* #endif HAVE_THREAD_INFO */
1697
1698 #elif KERNEL_LINUX
1699         int running  = 0;
1700         int sleeping = 0;
1701         int zombies  = 0;
1702         int stopped  = 0;
1703         int paging   = 0;
1704         int blocked  = 0;
1705
1706         struct dirent *ent;
1707         DIR           *proc;
1708         long           pid;
1709
1710         char cmdline[CMDLINE_BUFFER_SIZE];
1711
1712         int        status;
1713         procstat_t ps;
1714         procstat_entry_t pse;
1715         char       state;
1716
1717         procstat_t *ps_ptr;
1718
1719         running = sleeping = zombies = stopped = paging = blocked = 0;
1720         ps_list_reset ();
1721
1722         if ((proc = opendir ("/proc")) == NULL)
1723         {
1724                 char errbuf[1024];
1725                 ERROR ("Cannot open `/proc': %s",
1726                                 sstrerror (errno, errbuf, sizeof (errbuf)));
1727                 return (-1);
1728         }
1729
1730         while ((ent = readdir (proc)) != NULL)
1731         {
1732                 if (!isdigit (ent->d_name[0]))
1733                         continue;
1734
1735                 if ((pid = atol (ent->d_name)) < 1)
1736                         continue;
1737
1738                 status = ps_read_process (pid, &ps, &state);
1739                 if (status != 0)
1740                 {
1741                         DEBUG ("ps_read_process failed: %i", status);
1742                         continue;
1743                 }
1744
1745                 memset (&pse, 0, sizeof (pse));
1746                 pse.id       = pid;
1747                 pse.age      = 0;
1748
1749                 pse.num_proc   = ps.num_proc;
1750                 pse.num_lwp    = ps.num_lwp;
1751                 pse.vmem_size  = ps.vmem_size;
1752                 pse.vmem_rss   = ps.vmem_rss;
1753                 pse.vmem_data  = ps.vmem_data;
1754                 pse.vmem_code  = ps.vmem_code;
1755                 pse.stack_size = ps.stack_size;
1756
1757                 pse.vmem_minflt = 0;
1758                 pse.vmem_minflt_counter = ps.vmem_minflt_counter;
1759                 pse.vmem_majflt = 0;
1760                 pse.vmem_majflt_counter = ps.vmem_majflt_counter;
1761
1762                 pse.cpu_user = 0;
1763                 pse.cpu_user_counter = ps.cpu_user_counter;
1764                 pse.cpu_system = 0;
1765                 pse.cpu_system_counter = ps.cpu_system_counter;
1766
1767                 pse.io_rchar = ps.io_rchar;
1768                 pse.io_wchar = ps.io_wchar;
1769                 pse.io_syscr = ps.io_syscr;
1770                 pse.io_syscw = ps.io_syscw;
1771
1772                 switch (state)
1773                 {
1774                         case 'R': running++;  break;
1775                         case 'S': sleeping++; break;
1776                         case 'D': blocked++;  break;
1777                         case 'Z': zombies++;  break;
1778                         case 'T': stopped++;  break;
1779                         case 'W': paging++;   break;
1780                 }
1781
1782                 ps_list_add (ps.name,
1783                                 ps_get_cmdline (pid, ps.name, cmdline, sizeof (cmdline)),
1784                                 &pse);
1785         }
1786
1787         closedir (proc);
1788
1789         ps_submit_state ("running",  running);
1790         ps_submit_state ("sleeping", sleeping);
1791         ps_submit_state ("zombies",  zombies);
1792         ps_submit_state ("stopped",  stopped);
1793         ps_submit_state ("paging",   paging);
1794         ps_submit_state ("blocked",  blocked);
1795
1796         for (ps_ptr = list_head_g; ps_ptr != NULL; ps_ptr = ps_ptr->next)
1797                 ps_submit_proc_list (ps_ptr);
1798
1799         read_fork_rate();
1800 /* #endif KERNEL_LINUX */
1801
1802 #elif HAVE_LIBKVM_GETPROCS && HAVE_STRUCT_KINFO_PROC_FREEBSD
1803         int running  = 0;
1804         int sleeping = 0;
1805         int zombies  = 0;
1806         int stopped  = 0;
1807         int blocked  = 0;
1808         int idle     = 0;
1809         int wait     = 0;
1810
1811         kvm_t *kd;
1812         char errbuf[_POSIX2_LINE_MAX];
1813         struct kinfo_proc *procs;          /* array of processes */
1814         struct kinfo_proc *proc_ptr = NULL;
1815         int count;                         /* returns number of processes */
1816         int i;
1817
1818         procstat_t *ps_ptr;
1819         procstat_entry_t pse;
1820
1821         ps_list_reset ();
1822
1823         /* Open the kvm interface, get a descriptor */
1824         kd = kvm_openfiles (NULL, "/dev/null", NULL, 0, errbuf);
1825         if (kd == NULL)
1826         {
1827                 ERROR ("processes plugin: Cannot open kvm interface: %s",
1828                                 errbuf);
1829                 return (0);
1830         }
1831
1832         /* Get the list of processes. */
1833         procs = kvm_getprocs(kd, KERN_PROC_ALL, 0, &count);
1834         if (procs == NULL)
1835         {
1836                 ERROR ("processes plugin: Cannot get kvm processes list: %s",
1837                                 kvm_geterr(kd));
1838                 kvm_close (kd);
1839                 return (0);
1840         }
1841
1842         /* Iterate through the processes in kinfo_proc */
1843         for (i = 0; i < count; i++)
1844         {
1845                 /* Create only one process list entry per _process_, i.e.
1846                  * filter out threads (duplicate PID entries). */
1847                 if ((proc_ptr == NULL) || (proc_ptr->ki_pid != procs[i].ki_pid))
1848                 {
1849                         char cmdline[CMDLINE_BUFFER_SIZE] = "";
1850                         _Bool have_cmdline = 0;
1851
1852                         proc_ptr = &(procs[i]);
1853                         /* Don't probe system processes and processes without arguments */
1854                         if (((procs[i].ki_flag & P_SYSTEM) == 0)
1855                                         && (procs[i].ki_args != NULL))
1856                         {
1857                                 char **argv;
1858                                 int argc;
1859                                 int status;
1860
1861                                 /* retrieve the arguments */
1862                                 argv = kvm_getargv (kd, proc_ptr, /* nchr = */ 0);
1863                                 argc = 0;
1864                                 if ((argv != NULL) && (argv[0] != NULL))
1865                                 {
1866                                         while (argv[argc] != NULL)
1867                                                 argc++;
1868
1869                                         status = strjoin (cmdline, sizeof (cmdline), argv, argc, " ");
1870                                         if (status < 0)
1871                                                 WARNING ("processes plugin: Command line did not fit into buffer.");
1872                                         else
1873                                                 have_cmdline = 1;
1874                                 }
1875                         } /* if (process has argument list) */
1876
1877                         pse.id       = procs[i].ki_pid;
1878                         pse.age      = 0;
1879
1880                         pse.num_proc = 1;
1881                         pse.num_lwp  = procs[i].ki_numthreads;
1882
1883                         pse.vmem_size = procs[i].ki_size;
1884                         pse.vmem_rss = procs[i].ki_rssize * pagesize;
1885                         pse.vmem_data = procs[i].ki_dsize * pagesize;
1886                         pse.vmem_code = procs[i].ki_tsize * pagesize;
1887                         pse.stack_size = procs[i].ki_ssize * pagesize;
1888                         pse.vmem_minflt = 0;
1889                         pse.vmem_minflt_counter = procs[i].ki_rusage.ru_minflt;
1890                         pse.vmem_majflt = 0;
1891                         pse.vmem_majflt_counter = procs[i].ki_rusage.ru_majflt;
1892
1893                         pse.cpu_user = 0;
1894                         pse.cpu_system = 0;
1895                         pse.cpu_user_counter = 0;
1896                         pse.cpu_system_counter = 0;
1897                         /*
1898                          * The u-area might be swapped out, and we can't get
1899                          * at it because we have a crashdump and no swap.
1900                          * If it's here fill in these fields, otherwise, just
1901                          * leave them 0.
1902                          */
1903                         if (procs[i].ki_flag & P_INMEM)
1904                         {
1905                                 pse.cpu_user_counter = procs[i].ki_rusage.ru_utime.tv_usec
1906                                         + (1000000lu * procs[i].ki_rusage.ru_utime.tv_sec);
1907                                 pse.cpu_system_counter = procs[i].ki_rusage.ru_stime.tv_usec
1908                                         + (1000000lu * procs[i].ki_rusage.ru_stime.tv_sec);
1909                         }
1910
1911                         /* no I/O data */
1912                         pse.io_rchar = -1;
1913                         pse.io_wchar = -1;
1914                         pse.io_syscr = -1;
1915                         pse.io_syscw = -1;
1916
1917                         ps_list_add (procs[i].ki_comm, have_cmdline ? cmdline : NULL, &pse);
1918
1919                         switch (procs[i].ki_stat)
1920                         {
1921                                 case SSTOP:     stopped++;      break;
1922                                 case SSLEEP:    sleeping++;     break;
1923                                 case SRUN:      running++;      break;
1924                                 case SIDL:      idle++;         break;
1925                                 case SWAIT:     wait++;         break;
1926                                 case SLOCK:     blocked++;      break;
1927                                 case SZOMB:     zombies++;      break;
1928                         }
1929                 } /* if ((proc_ptr == NULL) || (proc_ptr->ki_pid != procs[i].ki_pid)) */
1930         }
1931
1932         kvm_close(kd);
1933
1934         ps_submit_state ("running",  running);
1935         ps_submit_state ("sleeping", sleeping);
1936         ps_submit_state ("zombies",  zombies);
1937         ps_submit_state ("stopped",  stopped);
1938         ps_submit_state ("blocked",  blocked);
1939         ps_submit_state ("idle",     idle);
1940         ps_submit_state ("wait",     wait);
1941
1942         for (ps_ptr = list_head_g; ps_ptr != NULL; ps_ptr = ps_ptr->next)
1943                 ps_submit_proc_list (ps_ptr);
1944 /* #endif HAVE_LIBKVM_GETPROCS && HAVE_STRUCT_KINFO_PROC_FREEBSD */
1945
1946 #elif HAVE_LIBKVM_GETPROCS && HAVE_STRUCT_KINFO_PROC_OPENBSD
1947         int running  = 0;
1948         int sleeping = 0;
1949         int zombies  = 0;
1950         int stopped  = 0;
1951         int onproc   = 0;
1952         int idle     = 0;
1953         int dead     = 0;
1954
1955         kvm_t *kd;
1956         char errbuf[1024];
1957         struct kinfo_proc *procs;          /* array of processes */
1958         struct kinfo_proc *proc_ptr = NULL;
1959         int count;                         /* returns number of processes */
1960         int i;
1961
1962         procstat_t *ps_ptr;
1963         procstat_entry_t pse;
1964
1965         ps_list_reset ();
1966
1967         /* Open the kvm interface, get a descriptor */
1968         kd = kvm_open (NULL, NULL, NULL, 0, errbuf);
1969         if (kd == NULL)
1970         {
1971                 ERROR ("processes plugin: Cannot open kvm interface: %s",
1972                                 errbuf);
1973                 return (0);
1974         }
1975
1976         /* Get the list of processes. */
1977         procs = kvm_getprocs(kd, KERN_PROC_ALL, 0, sizeof(struct kinfo_proc), &count);
1978         if (procs == NULL)
1979         {
1980                 ERROR ("processes plugin: Cannot get kvm processes list: %s",
1981                                 kvm_geterr(kd));
1982                 kvm_close (kd);
1983                 return (0);
1984         }
1985
1986         /* Iterate through the processes in kinfo_proc */
1987         for (i = 0; i < count; i++)
1988         {
1989                 /* Create only one process list entry per _process_, i.e.
1990                  * filter out threads (duplicate PID entries). */
1991                 if ((proc_ptr == NULL) || (proc_ptr->p_pid != procs[i].p_pid))
1992                 {
1993                         char cmdline[CMDLINE_BUFFER_SIZE] = "";
1994                         _Bool have_cmdline = 0;
1995
1996                         proc_ptr = &(procs[i]);
1997                         /* Don't probe zombie processes  */
1998                         if (!P_ZOMBIE(proc_ptr))
1999                         {
2000                                 char **argv;
2001                                 int argc;
2002                                 int status;
2003
2004                                 /* retrieve the arguments */
2005                                 argv = kvm_getargv (kd, proc_ptr, /* nchr = */ 0);
2006                                 argc = 0;
2007                                 if ((argv != NULL) && (argv[0] != NULL))
2008                                 {
2009                                         while (argv[argc] != NULL)
2010                                                 argc++;
2011
2012                                         status = strjoin (cmdline, sizeof (cmdline), argv, argc, " ");
2013                                         if (status < 0)
2014                                                 WARNING ("processes plugin: Command line did not fit into buffer.");
2015                                         else
2016                                                 have_cmdline = 1;
2017                                 }
2018                         } /* if (process has argument list) */
2019
2020                         memset (&pse, 0, sizeof (pse));
2021                         pse.id       = procs[i].p_pid;
2022                         pse.age      = 0;
2023
2024                         pse.num_proc = 1;
2025                         pse.num_lwp  = 1; /* XXX: accumulate p_tid values for a single p_pid ? */
2026
2027                         pse.vmem_rss = procs[i].p_vm_rssize * pagesize;
2028                         pse.vmem_data = procs[i].p_vm_dsize * pagesize;
2029                         pse.vmem_code = procs[i].p_vm_tsize * pagesize;
2030                         pse.stack_size = procs[i].p_vm_ssize * pagesize;
2031                         pse.vmem_size = pse.stack_size + pse.vmem_code + pse.vmem_data;
2032                         pse.vmem_minflt = 0;
2033                         pse.vmem_minflt_counter = procs[i].p_uru_minflt;
2034                         pse.vmem_majflt = 0;
2035                         pse.vmem_majflt_counter = procs[i].p_uru_majflt;
2036
2037                         pse.cpu_user = 0;
2038                         pse.cpu_system = 0;
2039                         pse.cpu_user_counter = procs[i].p_uutime_usec +
2040                                                 (1000000lu * procs[i].p_uutime_sec);
2041                         pse.cpu_system_counter = procs[i].p_ustime_usec +
2042                                                 (1000000lu * procs[i].p_ustime_sec);
2043
2044                         /* no I/O data */
2045                         pse.io_rchar = -1;
2046                         pse.io_wchar = -1;
2047                         pse.io_syscr = -1;
2048                         pse.io_syscw = -1;
2049
2050                         pse.cswitch_vol = -1;
2051                         pse.cswitch_invol = -1;
2052
2053                         ps_list_add (procs[i].p_comm, have_cmdline ? cmdline : NULL, &pse);
2054
2055                         switch (procs[i].p_stat)
2056                         {
2057                                 case SSTOP:     stopped++;      break;
2058                                 case SSLEEP:    sleeping++;     break;
2059                                 case SRUN:      running++;      break;
2060                                 case SIDL:      idle++;         break;
2061                                 case SONPROC:   onproc++;       break;
2062                                 case SDEAD:     dead++;         break;
2063                                 case SZOMB:     zombies++;      break;
2064                         }
2065                 } /* if ((proc_ptr == NULL) || (proc_ptr->p_pid != procs[i].p_pid)) */
2066         }
2067
2068         kvm_close(kd);
2069
2070         ps_submit_state ("running",  running);
2071         ps_submit_state ("sleeping", sleeping);
2072         ps_submit_state ("zombies",  zombies);
2073         ps_submit_state ("stopped",  stopped);
2074         ps_submit_state ("onproc",   onproc);
2075         ps_submit_state ("idle",     idle);
2076         ps_submit_state ("dead",     dead);
2077
2078         for (ps_ptr = list_head_g; ps_ptr != NULL; ps_ptr = ps_ptr->next)
2079                 ps_submit_proc_list (ps_ptr);
2080 /* #endif HAVE_LIBKVM_GETPROCS && HAVE_STRUCT_KINFO_PROC_OPENBSD */
2081
2082 #elif HAVE_PROCINFO_H
2083         /* AIX */
2084         int running  = 0;
2085         int sleeping = 0;
2086         int zombies  = 0;
2087         int stopped  = 0;
2088         int paging   = 0;
2089         int blocked  = 0;
2090
2091         pid_t pindex = 0;
2092         int nprocs;
2093
2094         procstat_t *ps;
2095         procstat_entry_t pse;
2096
2097         ps_list_reset ();
2098         while ((nprocs = getprocs64 (procentry, sizeof(struct procentry64),
2099                                         /* fdsinfo = */ NULL, sizeof(struct fdsinfo64),
2100                                         &pindex, MAXPROCENTRY)) > 0)
2101         {
2102                 int i;
2103
2104                 for (i = 0; i < nprocs; i++)
2105                 {
2106                         tid64_t thindex;
2107                         int nthreads;
2108                         char arglist[MAXARGLN+1];
2109                         char *cargs;
2110                         char *cmdline;
2111
2112                         if (procentry[i].pi_state == SNONE) continue;
2113                         /* if (procentry[i].pi_state == SZOMB)  FIXME */
2114
2115                         cmdline = procentry[i].pi_comm;
2116                         cargs = procentry[i].pi_comm;
2117                         if ( procentry[i].pi_flags & SKPROC )
2118                         {
2119                                 if (procentry[i].pi_pid == 0)
2120                                         cmdline = "swapper";
2121                                 cargs = cmdline;
2122                         }
2123                         else
2124                         {
2125                                 if (getargs(&procentry[i], sizeof(struct procentry64), arglist, MAXARGLN) >= 0)
2126                                 {
2127                                         int n;
2128
2129                                         n = -1;
2130                                         while (++n < MAXARGLN)
2131                                         {
2132                                                 if (arglist[n] == '\0')
2133                                                 {
2134                                                         if (arglist[n+1] == '\0')
2135                                                                 break;
2136                                                         arglist[n] = ' ';
2137                                                 }
2138                                         }
2139                                         cargs = arglist;
2140                                 }
2141                         }
2142
2143                         pse.id       = procentry[i].pi_pid;
2144                         pse.age      = 0;
2145                         pse.num_lwp  = procentry[i].pi_thcount;
2146                         pse.num_proc = 1;
2147
2148                         thindex=0;
2149                         while ((nthreads = getthrds64(procentry[i].pi_pid,
2150                                                         thrdentry, sizeof(struct thrdentry64),
2151                                                         &thindex, MAXTHRDENTRY)) > 0)
2152                         {
2153                                 int j;
2154
2155                                 for (j=0; j< nthreads; j++)
2156                                 {
2157                                         switch (thrdentry[j].ti_state)
2158                                         {
2159                                                 /* case TSNONE: break; */
2160                                                 case TSIDL:     blocked++;      break; /* FIXME is really blocked */
2161                                                 case TSRUN:     running++;      break;
2162                                                 case TSSLEEP:   sleeping++;     break;
2163                                                 case TSSWAP:    paging++;       break;
2164                                                 case TSSTOP:    stopped++;      break;
2165                                                 case TSZOMB:    zombies++;      break;
2166                                         }
2167                                 }
2168                                 if (nthreads < MAXTHRDENTRY)
2169                                         break;
2170                         }
2171
2172                         pse.cpu_user = 0;
2173                         /* tv_usec is nanosec ??? */
2174                         pse.cpu_user_counter = procentry[i].pi_ru.ru_utime.tv_sec * 1000000 +
2175                                 procentry[i].pi_ru.ru_utime.tv_usec / 1000;
2176
2177                         pse.cpu_system = 0;
2178                         /* tv_usec is nanosec ??? */
2179                         pse.cpu_system_counter = procentry[i].pi_ru.ru_stime.tv_sec * 1000000 +
2180                                 procentry[i].pi_ru.ru_stime.tv_usec / 1000;
2181
2182                         pse.vmem_minflt = 0;
2183                         pse.vmem_minflt_counter = procentry[i].pi_minflt;
2184                         pse.vmem_majflt = 0;
2185                         pse.vmem_majflt_counter = procentry[i].pi_majflt;
2186
2187                         pse.vmem_size = procentry[i].pi_tsize + procentry[i].pi_dvm * pagesize;
2188                         pse.vmem_rss = (procentry[i].pi_drss + procentry[i].pi_trss) * pagesize;
2189                         /* Not supported */
2190                         pse.vmem_data = 0;
2191                         pse.vmem_code = 0;
2192                         pse.stack_size =  0;
2193
2194                         pse.io_rchar = -1;
2195                         pse.io_wchar = -1;
2196                         pse.io_syscr = -1;
2197                         pse.io_syscw = -1;
2198
2199                         ps_list_add (cmdline, cargs, &pse);
2200                 } /* for (i = 0 .. nprocs) */
2201
2202                 if (nprocs < MAXPROCENTRY)
2203                         break;
2204         } /* while (getprocs64() > 0) */
2205         ps_submit_state ("running",  running);
2206         ps_submit_state ("sleeping", sleeping);
2207         ps_submit_state ("zombies",  zombies);
2208         ps_submit_state ("stopped",  stopped);
2209         ps_submit_state ("paging",   paging);
2210         ps_submit_state ("blocked",  blocked);
2211
2212         for (ps = list_head_g; ps != NULL; ps = ps->next)
2213                 ps_submit_proc_list (ps);
2214 /* #endif HAVE_PROCINFO_H */
2215
2216 #elif KERNEL_SOLARIS
2217         /*
2218          * The Solaris section adds a few more process states and removes some
2219          * process states compared to linux. Most notably there is no "PAGING"
2220          * and "BLOCKED" state for a process.  The rest is similar to the linux
2221          * code.
2222          */
2223         int running = 0;
2224         int sleeping = 0;
2225         int zombies = 0;
2226         int stopped = 0;
2227         int detached = 0;
2228         int daemon = 0;
2229         int system = 0;
2230         int orphan = 0;
2231
2232         struct dirent *ent;
2233         DIR *proc;
2234
2235         int status;
2236         procstat_t *ps_ptr;
2237         char state;
2238
2239         char cmdline[PRARGSZ];
2240
2241         ps_list_reset ();
2242
2243         proc = opendir ("/proc");
2244         if (proc == NULL)
2245                 return (-1);
2246
2247         while ((ent = readdir(proc)) != NULL)
2248         {
2249                 long pid;
2250                 struct procstat ps;
2251                 procstat_entry_t pse;
2252                 char *endptr;
2253
2254                 if (!isdigit ((int) ent->d_name[0]))
2255                         continue;
2256
2257                 pid = strtol (ent->d_name, &endptr, 10);
2258                 if (*endptr != 0) /* value didn't completely parse as a number */
2259                         continue;
2260
2261                 status = ps_read_process (pid, &ps, &state);
2262                 if (status != 0)
2263                 {
2264                         DEBUG("ps_read_process failed: %i", status);
2265                         continue;
2266                 }
2267
2268                 memset (&pse, 0, sizeof (pse));
2269                 pse.id = pid;
2270                 pse.age = 0;
2271
2272                 pse.num_proc   = ps.num_proc;
2273                 pse.num_lwp    = ps.num_lwp;
2274                 pse.vmem_size  = ps.vmem_size;
2275                 pse.vmem_rss   = ps.vmem_rss;
2276                 pse.vmem_data  = ps.vmem_data;
2277                 pse.vmem_code  = ps.vmem_code;
2278                 pse.stack_size = ps.stack_size;
2279
2280                 pse.vmem_minflt = 0;
2281                 pse.vmem_minflt_counter = ps.vmem_minflt_counter;
2282                 pse.vmem_majflt = 0;
2283                 pse.vmem_majflt_counter = ps.vmem_majflt_counter;
2284
2285                 pse.cpu_user = 0;
2286                 pse.cpu_user_counter = ps.cpu_user_counter;
2287                 pse.cpu_system = 0;
2288                 pse.cpu_system_counter = ps.cpu_system_counter;
2289
2290                 pse.io_rchar = ps.io_rchar;
2291                 pse.io_wchar = ps.io_wchar;
2292                 pse.io_syscr = ps.io_syscr;
2293                 pse.io_syscw = ps.io_syscw;
2294
2295                 pse.cswitch_vol = -1;
2296                 pse.cswitch_invol = -1;
2297
2298                 switch (state)
2299                 {
2300                         case 'R': running++;  break;
2301                         case 'S': sleeping++; break;
2302                         case 'E': detached++; break;
2303                         case 'Z': zombies++;  break;
2304                         case 'T': stopped++;  break;
2305                         case 'A': daemon++;   break;
2306                         case 'Y': system++;   break;
2307                         case 'O': orphan++;   break;
2308                 }
2309
2310
2311                 ps_list_add (ps.name,
2312                                 ps_get_cmdline (pid, ps.name, cmdline, sizeof (cmdline)),
2313                                 &pse);
2314         } /* while(readdir) */
2315         closedir (proc);
2316
2317         ps_submit_state ("running",  running);
2318         ps_submit_state ("sleeping", sleeping);
2319         ps_submit_state ("zombies",  zombies);
2320         ps_submit_state ("stopped",  stopped);
2321         ps_submit_state ("detached", detached);
2322         ps_submit_state ("daemon",   daemon);
2323         ps_submit_state ("system",   system);
2324         ps_submit_state ("orphan",   orphan);
2325
2326         for (ps_ptr = list_head_g; ps_ptr != NULL; ps_ptr = ps_ptr->next)
2327                 ps_submit_proc_list (ps_ptr);
2328
2329         read_fork_rate();
2330 #endif /* KERNEL_SOLARIS */
2331
2332         return (0);
2333 } /* int ps_read */
2334
2335 void module_register (void)
2336 {
2337         plugin_register_complex_config ("processes", ps_config);
2338         plugin_register_init ("processes", ps_init);
2339         plugin_register_read ("processes", ps_read);
2340 } /* void module_register */