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