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 /* Read data from /proc/pid/status */
 782 static procstat_t *ps_read_status (int pid, procstat_t *ps)
 783 {
 784         FILE *fh;
 785         char buffer[1024];
 786         char filename[64];
 787         unsigned long lib = 0;
 788         unsigned long exe = 0;
 789         unsigned long data = 0;
 790         unsigned long threads = 0;
 791         char *fields[8];
 792         int numfields;
 793
 794         ssnprintf (filename, sizeof (filename), "/proc/%i/status", pid);
 795         if ((fh = fopen (filename, "r")) == NULL)
 796                 return (NULL);
 797
 798         while (fgets (buffer, sizeof(buffer), fh) != NULL)
 799         {
 800                 unsigned long tmp;
 801                 char *endptr;
 802
 803                 if (strncmp (buffer, "Vm", 2) != 0
 804                                 && strncmp (buffer, "Threads", 7) != 0)
 805                         continue;
 806
 807                 numfields = strsplit (buffer, fields,
 808                                 STATIC_ARRAY_SIZE (fields));
 809
 810                 if (numfields < 2)
 811                         continue;
 812
 813                 errno = 0;
 814                 endptr = NULL;
 815                 tmp = strtoul (fields[1], &endptr, /* base = */ 10);
 816                 if ((errno == 0) && (endptr != fields[1]))
 817                 {
 818                         if (strncmp (buffer, "VmData", 6) == 0)
 819                         {
 820                                 data = tmp;
 821                         }
 822                         else if (strncmp (buffer, "VmLib", 5) == 0)
 823                         {
 824                                 lib = tmp;
 825                         }
 826                         else if  (strncmp(buffer, "VmExe", 5) == 0)
 827                         {
 828                                 exe = tmp;
 829                         }
 830                         else if  (strncmp(buffer, "Threads", 7) == 0)
 831                         {
 832                                 threads = tmp;
 833                         }
 834                 }
 835         } /* while (fgets) */
 836
 837         if (fclose (fh))
 838         {
 839                 char errbuf[1024];
 840                 WARNING ("processes: fclose: %s",
 841                                 sstrerror (errno, errbuf, sizeof (errbuf)));
 842         }
 843
 844         ps->vmem_data = data * 1024;
 845         ps->vmem_code = (exe + lib) * 1024;
 846         if (threads != 0)
 847                 ps->num_lwp = threads;
 848
 849         return (ps);
 850 } /* procstat_t *ps_read_vmem */
 851
 852 static procstat_t *ps_read_io (int pid, procstat_t *ps)
 853 {
 854         FILE *fh;
 855         char buffer[1024];
 856         char filename[64];
 857
 858         char *fields[8];
 859         int numfields;
 860
 861         ssnprintf (filename, sizeof (filename), "/proc/%i/io", pid);
 862         if ((fh = fopen (filename, "r")) == NULL)
 863                 return (NULL);
 864
 865         while (fgets (buffer, sizeof (buffer), fh) != NULL)
 866         {
 867                 derive_t *val = NULL;
 868                 long long tmp;
 869                 char *endptr;
 870
 871                 if (strncasecmp (buffer, "rchar:", 6) == 0)
 872                         val = &(ps->io_rchar);
 873                 else if (strncasecmp (buffer, "wchar:", 6) == 0)
 874                         val = &(ps->io_wchar);
 875                 else if (strncasecmp (buffer, "syscr:", 6) == 0)
 876                         val = &(ps->io_syscr);
 877                 else if (strncasecmp (buffer, "syscw:", 6) == 0)
 878                         val = &(ps->io_syscw);
 879                 else
 880                         continue;
 881
 882                 numfields = strsplit (buffer, fields,
 883                                 STATIC_ARRAY_SIZE (fields));
 884
 885                 if (numfields < 2)
 886                         continue;
 887
 888                 errno = 0;
 889                 endptr = NULL;
 890                 tmp = strtoll (fields[1], &endptr, /* base = */ 10);
 891                 if ((errno != 0) || (endptr == fields[1]))
 892                         *val = -1;
 893                 else
 894                         *val = (derive_t) tmp;
 895         } /* while (fgets) */
 896
 897         if (fclose (fh))
 898         {
 899                 char errbuf[1024];
 900                 WARNING ("processes: fclose: %s",
 901                                 sstrerror (errno, errbuf, sizeof (errbuf)));
 902         }
 903
 904         return (ps);
 905 } /* procstat_t *ps_read_io */
 906
 907 int ps_read_process (int pid, procstat_t *ps, char *state)
 908 {
 909         char  filename[64];
 910         char  buffer[1024];
 911
 912         char *fields[64];
 913         char  fields_len;
 914
 915         int   buffer_len;
 916
 917         char *buffer_ptr;
 918         size_t name_start_pos;
 919         size_t name_end_pos;
 920         size_t name_len;
 921
 922         derive_t cpu_user_counter;
 923         derive_t cpu_system_counter;
 924         long long unsigned vmem_size;
 925         long long unsigned vmem_rss;
 926         long long unsigned stack_size;
 927
 928         memset (ps, 0, sizeof (procstat_t));
 929
 930         ssnprintf (filename, sizeof (filename), "/proc/%i/stat", pid);
 931
 932         buffer_len = read_file_contents (filename,
 933                         buffer, sizeof(buffer) - 1);
 934         if (buffer_len <= 0)
 935                 return (-1);
 936         buffer[buffer_len] = 0;
 937
 938         /* The name of the process is enclosed in parens. Since the name can
 939          * contain parens itself, spaces, numbers and pretty much everything
 940          * else, use these to determine the process name. We don't use
 941          * strchr(3) and strrchr(3) to avoid pointer arithmetic which would
 942          * otherwise be required to determine name_len. */
 943         name_start_pos = 0;
 944         while ((buffer[name_start_pos] != '(')
 945                         && (name_start_pos < buffer_len))
 946                 name_start_pos++;
 947
 948         name_end_pos = buffer_len;
 949         while ((buffer[name_end_pos] != ')')
 950                         && (name_end_pos > 0))
 951                 name_end_pos--;
 952
 953         /* Either '(' or ')' is not found or they are in the wrong order.
 954          * Anyway, something weird that shouldn't happen ever. */
 955         if (name_start_pos >= name_end_pos)
 956         {
 957                 ERROR ("processes plugin: name_start_pos = %zu >= name_end_pos = %zu",
 958                                 name_start_pos, name_end_pos);
 959                 return (-1);
 960         }
 961
 962         name_len = (name_end_pos - name_start_pos) - 1;
 963         if (name_len >= sizeof (ps->name))
 964                 name_len = sizeof (ps->name) - 1;
 965
 966         sstrncpy (ps->name, &buffer[name_start_pos + 1], name_len + 1);
 967
 968         if ((buffer_len - name_end_pos) < 2)
 969                 return (-1);
 970         buffer_ptr = &buffer[name_end_pos + 2];
 971
 972         fields_len = strsplit (buffer_ptr, fields, STATIC_ARRAY_SIZE (fields));
 973         if (fields_len < 22)
 974         {
 975                 DEBUG ("processes plugin: ps_read_process (pid = %i):"
 976                                 " `%s' has only %i fields..",
 977                                 (int) pid, filename, fields_len);
 978                 return (-1);
 979         }
 980
 981         *state = fields[0][0];
 982
 983         if (*state == 'Z')
 984         {
 985                 ps->num_lwp  = 0;
 986                 ps->num_proc = 0;
 987         }
 988         else
 989         {
 990                 ps->num_lwp = strtoul (fields[17], /* endptr = */ NULL, /* base = */ 10);
 991                 if ((ps_read_status(pid, ps)) == NULL)
 992                 {
 993                         /* No VMem data */
 994                         ps->vmem_data = -1;
 995                         ps->vmem_code = -1;
 996                         DEBUG("ps_read_process: did not get vmem data for pid %i",pid);
 997                 }
 998                 if (ps->num_lwp <= 0)
 999                         ps->num_lwp = 1;
1000                 ps->num_proc = 1;
1001         }
1002
1003         /* Leave the rest at zero if this is only a zombi */
1004         if (ps->num_proc == 0)
1005         {
1006                 DEBUG ("processes plugin: This is only a zombi: pid = %i; "
1007                                 "name = %s;", pid, ps->name);
1008                 return (0);
1009         }
1010
1011         cpu_user_counter   = atoll (fields[11]);
1012         cpu_system_counter = atoll (fields[12]);
1013         vmem_size          = atoll (fields[20]);
1014         vmem_rss           = atoll (fields[21]);
1015         ps->vmem_minflt_counter = atol (fields[7]);
1016         ps->vmem_majflt_counter = atol (fields[9]);
1017
1018         {
1019                 unsigned long long stack_start = atoll (fields[25]);
1020                 unsigned long long stack_ptr   = atoll (fields[26]);
1021
1022                 stack_size = (stack_start > stack_ptr)
1023                         ? stack_start - stack_ptr
1024                         : stack_ptr - stack_start;
1025         }
1026
1027         /* Convert jiffies to useconds */
1028         cpu_user_counter   = cpu_user_counter   * 1000000 / CONFIG_HZ;
1029         cpu_system_counter = cpu_system_counter * 1000000 / CONFIG_HZ;
1030         vmem_rss = vmem_rss * pagesize_g;
1031
1032         ps->cpu_user_counter = cpu_user_counter;
1033         ps->cpu_system_counter = cpu_system_counter;
1034         ps->vmem_size = (unsigned long) vmem_size;
1035         ps->vmem_rss = (unsigned long) vmem_rss;
1036         ps->stack_size = (unsigned long) stack_size;
1037
1038         if ( (ps_read_io (pid, ps)) == NULL)
1039         {
1040                 /* no io data */
1041                 ps->io_rchar = -1;
1042                 ps->io_wchar = -1;
1043                 ps->io_syscr = -1;
1044                 ps->io_syscw = -1;
1045
1046                 DEBUG("ps_read_process: not get io data for pid %i",pid);
1047         }
1048
1049         /* success */
1050         return (0);
1051 } /* int ps_read_process (...) */
1052
1053 static char *ps_get_cmdline (pid_t pid, char *name, char *buf, size_t buf_len)
1054 {
1055         char  *buf_ptr;
1056         size_t len;
1057
1058         char file[PATH_MAX];
1059         int  fd;
1060
1061         size_t n;
1062
1063         if ((pid < 1) || (NULL == buf) || (buf_len < 2))
1064                 return NULL;
1065
1066         ssnprintf (file, sizeof (file), "/proc/%u/cmdline",
1067                         (unsigned int) pid);
1068
1069         errno = 0;
1070         fd = open (file, O_RDONLY);
1071         if (fd < 0) {
1072                 char errbuf[4096];
1073                 /* ENOENT means the process exited while we were handling it.
1074                  * Don't complain about this, it only fills the logs. */
1075                 if (errno != ENOENT)
1076                         WARNING ("processes plugin: Failed to open `%s': %s.", file,
1077                                         sstrerror (errno, errbuf, sizeof (errbuf)));
1078                 return NULL;
1079         }
1080
1081         buf_ptr = buf;
1082         len     = buf_len;
1083
1084         n = 0;
1085
1086         while (42) {
1087                 ssize_t status;
1088
1089                 status = read (fd, (void *)buf_ptr, len);
1090
1091                 if (status < 0) {
1092                         char errbuf[1024];
1093
1094                         if ((EAGAIN == errno) || (EINTR == errno))
1095                                 continue;
1096
1097                         WARNING ("processes plugin: Failed to read from `%s': %s.", file,
1098                                         sstrerror (errno, errbuf, sizeof (errbuf)));
1099                         close (fd);
1100                         return NULL;
1101                 }
1102
1103                 n += status;
1104
1105                 if (status == 0)
1106                         break;
1107
1108                 buf_ptr += status;
1109                 len     -= status;
1110
1111                 if (len <= 0)
1112                         break;
1113         }
1114
1115         close (fd);
1116
1117         if (0 == n) {
1118                 /* cmdline not available; e.g. kernel thread, zombie */
1119                 if (NULL == name)
1120                         return NULL;
1121
1122                 ssnprintf (buf, buf_len, "[%s]", name);
1123                 return buf;
1124         }
1125
1126         assert (n <= buf_len);
1127
1128         if (n == buf_len)
1129                 --n;
1130         buf[n] = '\0';
1131
1132         --n;
1133         /* remove trailing whitespace */
1134         while ((n > 0) && (isspace (buf[n]) || ('\0' == buf[n]))) {
1135                 buf[n] = '\0';
1136                 --n;
1137         }
1138
1139         /* arguments are separated by '\0' in /proc/<pid>/cmdline */
1140         while (n > 0) {
1141                 if ('\0' == buf[n])
1142                         buf[n] = ' ';
1143                 --n;
1144         }
1145         return buf;
1146 } /* char *ps_get_cmdline (...) */
1147
1148 static int read_fork_rate ()
1149 {
1150         FILE *proc_stat;
1151         char buffer[1024];
1152         value_t value;
1153         _Bool value_valid = 0;
1154
1155         proc_stat = fopen ("/proc/stat", "r");
1156         if (proc_stat == NULL)
1157         {
1158                 char errbuf[1024];
1159                 ERROR ("processes plugin: fopen (/proc/stat) failed: %s",
1160                                 sstrerror (errno, errbuf, sizeof (errbuf)));
1161                 return (-1);
1162         }
1163
1164         while (fgets (buffer, sizeof (buffer), proc_stat) != NULL)
1165         {
1166                 int status;
1167                 char *fields[3];
1168                 int fields_num;
1169
1170                 fields_num = strsplit (buffer, fields,
1171                                 STATIC_ARRAY_SIZE (fields));
1172                 if (fields_num != 2)
1173                         continue;
1174
1175                 if (strcmp ("processes", fields[0]) != 0)
1176                         continue;
1177
1178                 status = parse_value (fields[1], &value, DS_TYPE_DERIVE);
1179                 if (status == 0)
1180                         value_valid = 1;
1181
1182                 break;
1183         }
1184         fclose(proc_stat);
1185
1186         if (!value_valid)
1187                 return (-1);
1188
1189         ps_submit_fork_rate (value.derive);
1190         return (0);
1191 }
1192 #endif /*KERNEL_LINUX */
1193
1194 #if KERNEL_SOLARIS
1195 static const char *ps_get_cmdline (long pid, /* {{{ */
1196                 char *buffer, size_t buffer_size)
1197 {
1198         char path[PATH_MAX];
1199         psinfo_t info;
1200         int status;
1201
1202         snprintf(path, sizeof (path), "/proc/%li/psinfo", pid);
1203
1204         status = read_file_contents (path, (void *) &info, sizeof (info));
1205         if (status != sizeof (info))
1206         {
1207                 ERROR ("processes plugin: Unexpected return value "
1208                                 "while reading \"%s\": "
1209                                 "Returned %i but expected %zu.",
1210                                 path, status, buffer_size);
1211                 return (NULL);
1212         }
1213
1214         info.pr_psargs[sizeof (info.pr_psargs) - 1] = 0;
1215         sstrncpy (buffer, info.pr_psargs, buffer_size);
1216
1217         return (buffer);
1218 } /* }}} int ps_get_cmdline */
1219
1220 /*
1221  * Reads process information on the Solaris OS. The information comes mainly from
1222  * /proc/PID/status, /proc/PID/psinfo and /proc/PID/usage
1223  * The values for input and ouput chars are calculated "by hand"
1224  * Added a few "solaris" specific process states as well
1225  */
1226 static int ps_read_process(long pid, procstat_t *ps, char *state)
1227 {
1228         char filename[64];
1229         char f_psinfo[64], f_usage[64];
1230         char *buffer;
1231
1232         pstatus_t *myStatus;
1233         psinfo_t *myInfo;
1234         prusage_t *myUsage;
1235
1236         snprintf(filename, sizeof (filename), "/proc/%li/status", pid);
1237         snprintf(f_psinfo, sizeof (f_psinfo), "/proc/%li/psinfo", pid);
1238         snprintf(f_usage, sizeof (f_usage), "/proc/%li/usage", pid);
1239
1240
1241         buffer = malloc(sizeof (pstatus_t));
1242         memset(buffer, 0, sizeof (pstatus_t));
1243         read_file_contents(filename, buffer, sizeof (pstatus_t));
1244         myStatus = (pstatus_t *) buffer;
1245
1246         buffer = malloc(sizeof (psinfo_t));
1247         memset(buffer, 0, sizeof(psinfo_t));
1248         read_file_contents(f_psinfo, buffer, sizeof (psinfo_t));
1249         myInfo = (psinfo_t *) buffer;
1250
1251         buffer = malloc(sizeof (prusage_t));
1252         memset(buffer, 0, sizeof(prusage_t));
1253         read_file_contents(f_usage, buffer, sizeof (prusage_t));
1254         myUsage = (prusage_t *) buffer;
1255
1256         sstrncpy(ps->name, myInfo->pr_fname, sizeof (myInfo->pr_fname));
1257         ps->num_lwp = myStatus->pr_nlwp;
1258         if (myInfo->pr_wstat != 0) {
1259                 ps->num_proc = 0;
1260                 ps->num_lwp = 0;
1261                 *state = (char) 'Z';
1262                 return (0);
1263         } else {
1264                 ps->num_proc = 1;
1265                 ps->num_lwp = myInfo->pr_nlwp;
1266         }
1267
1268         /*
1269          * Convert system time and user time from nanoseconds to microseconds
1270          * for compatibility with the linux module
1271          */
1272         ps->cpu_system_counter = myStatus -> pr_stime.tv_nsec / 1000;
1273         ps->cpu_user_counter = myStatus -> pr_utime.tv_nsec / 1000;
1274
1275         /*
1276          * Convert rssize from KB to bytes to be consistent w/ the linux module
1277          */
1278         ps->vmem_rss = myInfo->pr_rssize * 1024;
1279         ps->vmem_size = myInfo->pr_size * 1024;
1280         ps->vmem_minflt_counter = myUsage->pr_minf;
1281         ps->vmem_majflt_counter = myUsage->pr_majf;
1282
1283         /*
1284          * TODO: Data and code segment calculations for Solaris
1285          */
1286
1287         ps->vmem_data = -1;
1288         ps->vmem_code = -1;
1289         ps->stack_size = myStatus->pr_stksize;
1290
1291         /*
1292          * Calculating input/ouput chars
1293          * Formula used is total chars / total blocks => chars/block
1294          * then convert input/output blocks to chars
1295          */
1296         ulong_t tot_chars = myUsage->pr_ioch;
1297         ulong_t tot_blocks = myUsage->pr_inblk + myUsage->pr_oublk;
1298         ulong_t chars_per_block = 1;
1299         if (tot_blocks != 0)
1300                 chars_per_block = tot_chars / tot_blocks;
1301         ps->io_rchar = myUsage->pr_inblk * chars_per_block;
1302         ps->io_wchar = myUsage->pr_oublk * chars_per_block;
1303         ps->io_syscr = myUsage->pr_sysc;
1304         ps->io_syscw = myUsage->pr_sysc;
1305
1306
1307         /*
1308          * TODO: Find way of setting BLOCKED and PAGING status
1309          */
1310
1311         *state = (char) 'R';
1312         if (myStatus->pr_flags & PR_ASLEEP)
1313                 *state = (char) 'S';
1314         else if (myStatus->pr_flags & PR_STOPPED)
1315                 *state = (char) 'T';
1316         else if (myStatus->pr_flags & PR_DETACH)
1317                 *state = (char) 'E';
1318         else if (myStatus->pr_flags & PR_DAEMON)
1319                 *state = (char) 'A';
1320         else if (myStatus->pr_flags & PR_ISSYS)
1321                 *state = (char) 'Y';
1322         else if (myStatus->pr_flags & PR_ORPHAN)
1323                 *state = (char) 'O';
1324
1325         sfree(myStatus);
1326         sfree(myInfo);
1327         sfree(myUsage);
1328
1329         return (0);
1330 }
1331
1332 /*
1333  * Reads the number of threads created since the last reboot. On Solaris these
1334  * are retrieved from kstat (module cpu, name sys, class misc, stat nthreads).
1335  * The result is the sum for all the threads created on each cpu
1336  */
1337 static int read_fork_rate()
1338 {
1339         extern kstat_ctl_t *kc;
1340         kstat_t *ksp_chain = NULL;
1341         derive_t result = 0;
1342
1343         if (kc == NULL)
1344                 return (-1);
1345
1346         for (ksp_chain = kc->kc_chain;
1347                         ksp_chain != NULL;
1348                         ksp_chain = ksp_chain->ks_next)
1349         {
1350                 if ((strcmp (ksp_chain->ks_module, "cpu") == 0)
1351                                 && (strcmp (ksp_chain->ks_name, "sys") == 0)
1352                                 && (strcmp (ksp_chain->ks_class, "misc") == 0))
1353                 {
1354                         long long tmp;
1355
1356                         kstat_read (kc, ksp_chain, NULL);
1357
1358                         tmp = get_kstat_value(ksp_chain, "nthreads");
1359                         if (tmp != -1LL)
1360                                 result += tmp;
1361                 }
1362         }
1363
1364         ps_submit_fork_rate (result);
1365         return (0);
1366 }
1367 #endif /* KERNEL_SOLARIS */
1368
1369 #if HAVE_THREAD_INFO
1370 static int mach_get_task_name (task_t t, int *pid, char *name, size_t name_max_len)
1371 {
1372         int mib[4];
1373
1374         struct kinfo_proc kp;
1375         size_t            kp_size;
1376
1377         mib[0] = CTL_KERN;
1378         mib[1] = KERN_PROC;
1379         mib[2] = KERN_PROC_PID;
1380
1381         if (pid_for_task (t, pid) != KERN_SUCCESS)
1382                 return (-1);
1383         mib[3] = *pid;
1384
1385         kp_size = sizeof (kp);
1386         if (sysctl (mib, 4, &kp, &kp_size, NULL, 0) != 0)
1387                 return (-1);
1388
1389         if (name_max_len > (MAXCOMLEN + 1))
1390                 name_max_len = MAXCOMLEN + 1;
1391
1392         strncpy (name, kp.kp_proc.p_comm, name_max_len - 1);
1393         name[name_max_len - 1] = '\0';
1394
1395         DEBUG ("pid = %i; name = %s;", *pid, name);
1396
1397         /* We don't do the special handling for `p_comm == "LaunchCFMApp"' as
1398          * `top' does it, because it is a lot of work and only used when
1399          * debugging. -octo */
1400
1401         return (0);
1402 }
1403 #endif /* HAVE_THREAD_INFO */
1404 /* ------- end of additional functions for KERNEL_LINUX/HAVE_THREAD_INFO ------- */
1405
1406 /* do actual readings from kernel */
1407 static int ps_read (void)
1408 {
1409 #if HAVE_THREAD_INFO
1410         kern_return_t            status;
1411
1412         int                      pset;
1413         processor_set_t          port_pset_priv;
1414
1415         int                      task;
1416         task_array_t             task_list;
1417         mach_msg_type_number_t   task_list_len;
1418
1419         int                      task_pid;
1420         char                     task_name[MAXCOMLEN + 1];
1421
1422         int                      thread;
1423         thread_act_array_t       thread_list;
1424         mach_msg_type_number_t   thread_list_len;
1425         thread_basic_info_data_t thread_data;
1426         mach_msg_type_number_t   thread_data_len;
1427
1428         int running  = 0;
1429         int sleeping = 0;
1430         int zombies  = 0;
1431         int stopped  = 0;
1432         int blocked  = 0;
1433
1434         procstat_t *ps;
1435         procstat_entry_t pse;
1436
1437         ps_list_reset ();
1438
1439         /*
1440          * The Mach-concept is a little different from the traditional UNIX
1441          * concept: All the work is done in threads. Threads are contained in
1442          * `tasks'. Therefore, `task status' doesn't make much sense, since
1443          * it's actually a `thread status'.
1444          * Tasks are assigned to sets of processors, so that's where you go to
1445          * get a list.
1446          */
1447         for (pset = 0; pset < pset_list_len; pset++)
1448         {
1449                 if ((status = host_processor_set_priv (port_host_self,
1450                                                 pset_list[pset],
1451                                                 &port_pset_priv)) != KERN_SUCCESS)
1452                 {
1453                         ERROR ("host_processor_set_priv failed: %s\n",
1454                                         mach_error_string (status));
1455                         continue;
1456                 }
1457
1458                 if ((status = processor_set_tasks (port_pset_priv,
1459                                                 &task_list,
1460                                                 &task_list_len)) != KERN_SUCCESS)
1461                 {
1462                         ERROR ("processor_set_tasks failed: %s\n",
1463                                         mach_error_string (status));
1464                         mach_port_deallocate (port_task_self, port_pset_priv);
1465                         continue;
1466                 }
1467
1468                 for (task = 0; task < task_list_len; task++)
1469                 {
1470                         ps = NULL;
1471                         if (mach_get_task_name (task_list[task],
1472                                                 &task_pid,
1473                                                 task_name, PROCSTAT_NAME_LEN) == 0)
1474                         {
1475                                 /* search for at least one match */
1476                                 for (ps = list_head_g; ps != NULL; ps = ps->next)
1477                                         /* FIXME: cmdline should be here instead of NULL */
1478                                         if (ps_list_match (task_name, NULL, ps) == 1)
1479                                                 break;
1480                         }
1481
1482                         /* Collect more detailed statistics for this process */
1483                         if (ps != NULL)
1484                         {
1485                                 task_basic_info_data_t        task_basic_info;
1486                                 mach_msg_type_number_t        task_basic_info_len;
1487                                 task_events_info_data_t       task_events_info;
1488                                 mach_msg_type_number_t        task_events_info_len;
1489                                 task_absolutetime_info_data_t task_absolutetime_info;
1490                                 mach_msg_type_number_t        task_absolutetime_info_len;
1491
1492                                 memset (&pse, '\0', sizeof (pse));
1493                                 pse.id = task_pid;
1494
1495                                 task_basic_info_len = TASK_BASIC_INFO_COUNT;
1496                                 status = task_info (task_list[task],
1497                                                 TASK_BASIC_INFO,
1498                                                 (task_info_t) &task_basic_info,
1499                                                 &task_basic_info_len);
1500                                 if (status != KERN_SUCCESS)
1501                                 {
1502                                         ERROR ("task_info failed: %s",
1503                                                         mach_error_string (status));
1504                                         continue; /* with next thread_list */
1505                                 }
1506
1507                                 task_events_info_len = TASK_EVENTS_INFO_COUNT;
1508                                 status = task_info (task_list[task],
1509                                                 TASK_EVENTS_INFO,
1510                                                 (task_info_t) &task_events_info,
1511                                                 &task_events_info_len);
1512                                 if (status != KERN_SUCCESS)
1513                                 {
1514                                         ERROR ("task_info failed: %s",
1515                                                         mach_error_string (status));
1516                                         continue; /* with next thread_list */
1517                                 }
1518
1519                                 task_absolutetime_info_len = TASK_ABSOLUTETIME_INFO_COUNT;
1520                                 status = task_info (task_list[task],
1521                                                 TASK_ABSOLUTETIME_INFO,
1522                                                 (task_info_t) &task_absolutetime_info,
1523                                                 &task_absolutetime_info_len);
1524                                 if (status != KERN_SUCCESS)
1525                                 {
1526                                         ERROR ("task_info failed: %s",
1527                                                         mach_error_string (status));
1528                                         continue; /* with next thread_list */
1529                                 }
1530
1531                                 pse.num_proc++;
1532                                 pse.vmem_size = task_basic_info.virtual_size;
1533                                 pse.vmem_rss = task_basic_info.resident_size;
1534                                 /* Does not seem to be easily exposed */
1535                                 pse.vmem_data = 0;
1536                                 pse.vmem_code = 0;
1537
1538                                 pse.vmem_minflt_counter = task_events_info.cow_faults;
1539                                 pse.vmem_majflt_counter = task_events_info.faults;
1540
1541                                 pse.cpu_user_counter = task_absolutetime_info.total_user;
1542                                 pse.cpu_system_counter = task_absolutetime_info.total_system;
1543                         }
1544
1545                         status = task_threads (task_list[task], &thread_list,
1546                                         &thread_list_len);
1547                         if (status != KERN_SUCCESS)
1548                         {
1549                                 /* Apple's `top' treats this case a zombie. It
1550                                  * makes sense to some extend: A `zombie'
1551                                  * thread is nonsense, since the task/process
1552                                  * is dead. */
1553                                 zombies++;
1554                                 DEBUG ("task_threads failed: %s",
1555                                                 mach_error_string (status));
1556                                 if (task_list[task] != port_task_self)
1557                                         mach_port_deallocate (port_task_self,
1558                                                         task_list[task]);
1559                                 continue; /* with next task_list */
1560                         }
1561
1562                         for (thread = 0; thread < thread_list_len; thread++)
1563                         {
1564                                 thread_data_len = THREAD_BASIC_INFO_COUNT;
1565                                 status = thread_info (thread_list[thread],
1566                                                 THREAD_BASIC_INFO,
1567                                                 (thread_info_t) &thread_data,
1568                                                 &thread_data_len);
1569                                 if (status != KERN_SUCCESS)
1570                                 {
1571                                         ERROR ("thread_info failed: %s",
1572                                                         mach_error_string (status));
1573                                         if (task_list[task] != port_task_self)
1574                                                 mach_port_deallocate (port_task_self,
1575                                                                 thread_list[thread]);
1576                                         continue; /* with next thread_list */
1577                                 }
1578
1579                                 if (ps != NULL)
1580                                         pse.num_lwp++;
1581
1582                                 switch (thread_data.run_state)
1583                                 {
1584                                         case TH_STATE_RUNNING:
1585                                                 running++;
1586                                                 break;
1587                                         case TH_STATE_STOPPED:
1588                                         /* What exactly is `halted'? */
1589                                         case TH_STATE_HALTED:
1590                                                 stopped++;
1591                                                 break;
1592                                         case TH_STATE_WAITING:
1593                                                 sleeping++;
1594                                                 break;
1595                                         case TH_STATE_UNINTERRUPTIBLE:
1596                                                 blocked++;
1597                                                 break;
1598                                         /* There is no `zombie' case here,
1599                                          * since there are no zombie-threads.
1600                                          * There's only zombie tasks, which are
1601                                          * handled above. */
1602                                         default:
1603                                                 WARNING ("Unknown thread status: %i",
1604                                                                 thread_data.run_state);
1605                                                 break;
1606                                 } /* switch (thread_data.run_state) */
1607
1608                                 if (task_list[task] != port_task_self)
1609                                 {
1610                                         status = mach_port_deallocate (port_task_self,
1611                                                         thread_list[thread]);
1612                                         if (status != KERN_SUCCESS)
1613                                                 ERROR ("mach_port_deallocate failed: %s",
1614                                                                 mach_error_string (status));
1615                                 }
1616                         } /* for (thread_list) */
1617
1618                         if ((status = vm_deallocate (port_task_self,
1619                                                         (vm_address_t) thread_list,
1620                                                         thread_list_len * sizeof (thread_act_t)))
1621                                         != KERN_SUCCESS)
1622                         {
1623                                 ERROR ("vm_deallocate failed: %s",
1624                                                 mach_error_string (status));
1625                         }
1626                         thread_list = NULL;
1627                         thread_list_len = 0;
1628
1629                         /* Only deallocate the task port, if it isn't our own.
1630                          * Don't know what would happen in that case, but this
1631                          * is what Apple's top does.. ;) */
1632                         if (task_list[task] != port_task_self)
1633                         {
1634                                 status = mach_port_deallocate (port_task_self,
1635                                                 task_list[task]);
1636                                 if (status != KERN_SUCCESS)
1637                                         ERROR ("mach_port_deallocate failed: %s",
1638                                                         mach_error_string (status));
1639                         }
1640
1641                         if (ps != NULL)
1642                                 /* FIXME: cmdline should be here instead of NULL */
1643                                 ps_list_add (task_name, NULL, &pse);
1644                 } /* for (task_list) */
1645
1646                 if ((status = vm_deallocate (port_task_self,
1647                                 (vm_address_t) task_list,
1648                                 task_list_len * sizeof (task_t))) != KERN_SUCCESS)
1649                 {
1650                         ERROR ("vm_deallocate failed: %s",
1651                                         mach_error_string (status));
1652                 }
1653                 task_list = NULL;
1654                 task_list_len = 0;
1655
1656                 if ((status = mach_port_deallocate (port_task_self, port_pset_priv))
1657                                 != KERN_SUCCESS)
1658                 {
1659                         ERROR ("mach_port_deallocate failed: %s",
1660                                         mach_error_string (status));
1661                 }
1662         } /* for (pset_list) */
1663
1664         ps_submit_state ("running", running);
1665         ps_submit_state ("sleeping", sleeping);
1666         ps_submit_state ("zombies", zombies);
1667         ps_submit_state ("stopped", stopped);
1668         ps_submit_state ("blocked", blocked);
1669
1670         for (ps = list_head_g; ps != NULL; ps = ps->next)
1671                 ps_submit_proc_list (ps);
1672 /* #endif HAVE_THREAD_INFO */
1673
1674 #elif KERNEL_LINUX
1675         int running  = 0;
1676         int sleeping = 0;
1677         int zombies  = 0;
1678         int stopped  = 0;
1679         int paging   = 0;
1680         int blocked  = 0;
1681
1682         struct dirent *ent;
1683         DIR           *proc;
1684         int            pid;
1685
1686         char cmdline[CMDLINE_BUFFER_SIZE];
1687
1688         int        status;
1689         procstat_t ps;
1690         procstat_entry_t pse;
1691         char       state;
1692
1693         procstat_t *ps_ptr;
1694
1695         running = sleeping = zombies = stopped = paging = blocked = 0;
1696         ps_list_reset ();
1697
1698         if ((proc = opendir ("/proc")) == NULL)
1699         {
1700                 char errbuf[1024];
1701                 ERROR ("Cannot open `/proc': %s",
1702                                 sstrerror (errno, errbuf, sizeof (errbuf)));
1703                 return (-1);
1704         }
1705
1706         while ((ent = readdir (proc)) != NULL)
1707         {
1708                 if (!isdigit (ent->d_name[0]))
1709                         continue;
1710
1711                 if ((pid = atoi (ent->d_name)) < 1)
1712                         continue;
1713
1714                 status = ps_read_process (pid, &ps, &state);
1715                 if (status != 0)
1716                 {
1717                         DEBUG ("ps_read_process failed: %i", status);
1718                         continue;
1719                 }
1720
1721                 pse.id       = pid;
1722                 pse.age      = 0;
1723
1724                 pse.num_proc   = ps.num_proc;
1725                 pse.num_lwp    = ps.num_lwp;
1726                 pse.vmem_size  = ps.vmem_size;
1727                 pse.vmem_rss   = ps.vmem_rss;
1728                 pse.vmem_data  = ps.vmem_data;
1729                 pse.vmem_code  = ps.vmem_code;
1730                 pse.stack_size = ps.stack_size;
1731
1732                 pse.vmem_minflt = 0;
1733                 pse.vmem_minflt_counter = ps.vmem_minflt_counter;
1734                 pse.vmem_majflt = 0;
1735                 pse.vmem_majflt_counter = ps.vmem_majflt_counter;
1736
1737                 pse.cpu_user = 0;
1738                 pse.cpu_user_counter = ps.cpu_user_counter;
1739                 pse.cpu_system = 0;
1740                 pse.cpu_system_counter = ps.cpu_system_counter;
1741
1742                 pse.io_rchar = ps.io_rchar;
1743                 pse.io_wchar = ps.io_wchar;
1744                 pse.io_syscr = ps.io_syscr;
1745                 pse.io_syscw = ps.io_syscw;
1746
1747                 switch (state)
1748                 {
1749                         case 'R': running++;  break;
1750                         case 'S': sleeping++; break;
1751                         case 'D': blocked++;  break;
1752                         case 'Z': zombies++;  break;
1753                         case 'T': stopped++;  break;
1754                         case 'W': paging++;   break;
1755                 }
1756
1757                 ps_list_add (ps.name,
1758                                 ps_get_cmdline (pid, ps.name, cmdline, sizeof (cmdline)),
1759                                 &pse);
1760         }
1761
1762         closedir (proc);
1763
1764         ps_submit_state ("running",  running);
1765         ps_submit_state ("sleeping", sleeping);
1766         ps_submit_state ("zombies",  zombies);
1767         ps_submit_state ("stopped",  stopped);
1768         ps_submit_state ("paging",   paging);
1769         ps_submit_state ("blocked",  blocked);
1770
1771         for (ps_ptr = list_head_g; ps_ptr != NULL; ps_ptr = ps_ptr->next)
1772                 ps_submit_proc_list (ps_ptr);
1773
1774         read_fork_rate();
1775 /* #endif KERNEL_LINUX */
1776
1777 #elif HAVE_LIBKVM_GETPROCS && HAVE_STRUCT_KINFO_PROC_FREEBSD
1778         int running  = 0;
1779         int sleeping = 0;
1780         int zombies  = 0;
1781         int stopped  = 0;
1782         int blocked  = 0;
1783         int idle     = 0;
1784         int wait     = 0;
1785
1786         kvm_t *kd;
1787         char errbuf[_POSIX2_LINE_MAX];
1788         struct kinfo_proc *procs;          /* array of processes */
1789         struct kinfo_proc *proc_ptr = NULL;
1790         int count;                         /* returns number of processes */
1791         int i;
1792
1793         procstat_t *ps_ptr;
1794         procstat_entry_t pse;
1795
1796         ps_list_reset ();
1797
1798         /* Open the kvm interface, get a descriptor */
1799         kd = kvm_openfiles (NULL, "/dev/null", NULL, 0, errbuf);
1800         if (kd == NULL)
1801         {
1802                 ERROR ("processes plugin: Cannot open kvm interface: %s",
1803                                 errbuf);
1804                 return (0);
1805         }
1806
1807         /* Get the list of processes. */
1808         procs = kvm_getprocs(kd, KERN_PROC_ALL, 0, &count);
1809         if (procs == NULL)
1810         {
1811                 ERROR ("processes plugin: Cannot get kvm processes list: %s",
1812                                 kvm_geterr(kd));
1813                 kvm_close (kd);
1814                 return (0);
1815         }
1816
1817         /* Iterate through the processes in kinfo_proc */
1818         for (i = 0; i < count; i++)
1819         {
1820                 /* Create only one process list entry per _process_, i.e.
1821                  * filter out threads (duplicate PID entries). */
1822                 if ((proc_ptr == NULL) || (proc_ptr->ki_pid != procs[i].ki_pid))
1823                 {
1824                         char cmdline[CMDLINE_BUFFER_SIZE] = "";
1825                         _Bool have_cmdline = 0;
1826
1827                         proc_ptr = &(procs[i]);
1828                         /* Don't probe system processes and processes without arguments */
1829                         if (((procs[i].ki_flag & P_SYSTEM) == 0)
1830                                         && (procs[i].ki_args != NULL))
1831                         {
1832                                 char **argv;
1833                                 int argc;
1834                                 int status;
1835
1836                                 /* retrieve the arguments */
1837                                 argv = kvm_getargv (kd, proc_ptr, /* nchr = */ 0);
1838                                 argc = 0;
1839                                 if ((argv != NULL) && (argv[0] != NULL))
1840                                 {
1841                                         while (argv[argc] != NULL)
1842                                                 argc++;
1843
1844                                         status = strjoin (cmdline, sizeof (cmdline), argv, argc, " ");
1845                                         if (status < 0)
1846                                                 WARNING ("processes plugin: Command line did not fit into buffer.");
1847                                         else
1848                                                 have_cmdline = 1;
1849                                 }
1850                         } /* if (process has argument list) */
1851
1852                         pse.id       = procs[i].ki_pid;
1853                         pse.age      = 0;
1854
1855                         pse.num_proc = 1;
1856                         pse.num_lwp  = procs[i].ki_numthreads;
1857
1858                         pse.vmem_size = procs[i].ki_size;
1859                         pse.vmem_rss = procs[i].ki_rssize * pagesize;
1860                         pse.vmem_data = procs[i].ki_dsize * pagesize;
1861                         pse.vmem_code = procs[i].ki_tsize * pagesize;
1862                         pse.stack_size = procs[i].ki_ssize * pagesize;
1863                         pse.vmem_minflt = 0;
1864                         pse.vmem_minflt_counter = procs[i].ki_rusage.ru_minflt;
1865                         pse.vmem_majflt = 0;
1866                         pse.vmem_majflt_counter = procs[i].ki_rusage.ru_majflt;
1867
1868                         pse.cpu_user = 0;
1869                         pse.cpu_system = 0;
1870                         pse.cpu_user_counter = 0;
1871                         pse.cpu_system_counter = 0;
1872                         /*
1873                          * The u-area might be swapped out, and we can't get
1874                          * at it because we have a crashdump and no swap.
1875                          * If it's here fill in these fields, otherwise, just
1876                          * leave them 0.
1877                          */
1878                         if (procs[i].ki_flag & P_INMEM)
1879                         {
1880                                 pse.cpu_user_counter = procs[i].ki_rusage.ru_utime.tv_usec
1881                                         + (1000000lu * procs[i].ki_rusage.ru_utime.tv_sec);
1882                                 pse.cpu_system_counter = procs[i].ki_rusage.ru_stime.tv_usec
1883                                         + (1000000lu * procs[i].ki_rusage.ru_stime.tv_sec);
1884                         }
1885
1886                         /* no I/O data */
1887                         pse.io_rchar = -1;
1888                         pse.io_wchar = -1;
1889                         pse.io_syscr = -1;
1890                         pse.io_syscw = -1;
1891
1892                         ps_list_add (procs[i].ki_comm, have_cmdline ? cmdline : NULL, &pse);
1893                 } /* if ((proc_ptr == NULL) || (proc_ptr->ki_pid != procs[i].ki_pid)) */
1894
1895                 switch (procs[i].ki_stat)
1896                 {
1897                         case SSTOP:     stopped++;      break;
1898                         case SSLEEP:    sleeping++;     break;
1899                         case SRUN:      running++;      break;
1900                         case SIDL:      idle++;         break;
1901                         case SWAIT:     wait++;         break;
1902                         case SLOCK:     blocked++;      break;
1903                         case SZOMB:     zombies++;      break;
1904                 }
1905         }
1906
1907         kvm_close(kd);
1908
1909         ps_submit_state ("running",  running);
1910         ps_submit_state ("sleeping", sleeping);
1911         ps_submit_state ("zombies",  zombies);
1912         ps_submit_state ("stopped",  stopped);
1913         ps_submit_state ("blocked",  blocked);
1914         ps_submit_state ("idle",     idle);
1915         ps_submit_state ("wait",     wait);
1916
1917         for (ps_ptr = list_head_g; ps_ptr != NULL; ps_ptr = ps_ptr->next)
1918                 ps_submit_proc_list (ps_ptr);
1919 /* #endif HAVE_LIBKVM_GETPROCS && HAVE_STRUCT_KINFO_PROC_FREEBSD */
1920
1921 #elif HAVE_LIBKVM_GETPROCS && HAVE_STRUCT_KINFO_PROC_OPENBSD
1922         int running  = 0;
1923         int sleeping = 0;
1924         int zombies  = 0;
1925         int stopped  = 0;
1926         int onproc   = 0;
1927         int idle     = 0;
1928         int dead     = 0;
1929
1930         kvm_t *kd;
1931         char errbuf[1024];
1932         struct kinfo_proc *procs;          /* array of processes */
1933         struct kinfo_proc *proc_ptr = NULL;
1934         int count;                         /* returns number of processes */
1935         int i;
1936
1937         procstat_t *ps_ptr;
1938         procstat_entry_t pse;
1939
1940         ps_list_reset ();
1941
1942         /* Open the kvm interface, get a descriptor */
1943         kd = kvm_open (NULL, NULL, NULL, 0, errbuf);
1944         if (kd == NULL)
1945         {
1946                 ERROR ("processes plugin: Cannot open kvm interface: %s",
1947                                 errbuf);
1948                 return (0);
1949         }
1950
1951         /* Get the list of processes. */
1952         procs = kvm_getprocs(kd, KERN_PROC_ALL, 0, sizeof(struct kinfo_proc), &count);
1953         if (procs == NULL)
1954         {
1955                 ERROR ("processes plugin: Cannot get kvm processes list: %s",
1956                                 kvm_geterr(kd));
1957                 kvm_close (kd);
1958                 return (0);
1959         }
1960
1961         /* Iterate through the processes in kinfo_proc */
1962         for (i = 0; i < count; i++)
1963         {
1964                 /* Create only one process list entry per _process_, i.e.
1965                  * filter out threads (duplicate PID entries). */
1966                 if ((proc_ptr == NULL) || (proc_ptr->p_pid != procs[i].p_pid))
1967                 {
1968                         char cmdline[CMDLINE_BUFFER_SIZE] = "";
1969                         _Bool have_cmdline = 0;
1970
1971                         proc_ptr = &(procs[i]);
1972                         /* Don't probe zombie processes  */
1973                         if (!P_ZOMBIE(proc_ptr))
1974                         {
1975                                 char **argv;
1976                                 int argc;
1977                                 int status;
1978
1979                                 /* retrieve the arguments */
1980                                 argv = kvm_getargv (kd, proc_ptr, /* nchr = */ 0);
1981                                 argc = 0;
1982                                 if ((argv != NULL) && (argv[0] != NULL))
1983                                 {
1984                                         while (argv[argc] != NULL)
1985                                                 argc++;
1986
1987                                         status = strjoin (cmdline, sizeof (cmdline), argv, argc, " ");
1988                                         if (status < 0)
1989                                                 WARNING ("processes plugin: Command line did not fit into buffer.");
1990                                         else
1991                                                 have_cmdline = 1;
1992                                 }
1993                         } /* if (process has argument list) */
1994
1995                         pse.id       = procs[i].p_pid;
1996                         pse.age      = 0;
1997
1998                         pse.num_proc = 1;
1999                         pse.num_lwp  = 1; /* XXX: accumulate p_tid values for a single p_pid ? */
2000
2001                         pse.vmem_rss = procs[i].p_vm_rssize * pagesize;
2002                         pse.vmem_data = procs[i].p_vm_dsize * pagesize;
2003                         pse.vmem_code = procs[i].p_vm_tsize * pagesize;
2004                         pse.stack_size = procs[i].p_vm_ssize * pagesize;
2005                         pse.vmem_size = pse.stack_size + pse.vmem_code + pse.vmem_data;
2006                         pse.vmem_minflt = 0;
2007                         pse.vmem_minflt_counter = procs[i].p_uru_minflt;
2008                         pse.vmem_majflt = 0;
2009                         pse.vmem_majflt_counter = procs[i].p_uru_majflt;
2010
2011                         pse.cpu_user = 0;
2012                         pse.cpu_system = 0;
2013                         pse.cpu_user_counter = procs[i].p_uutime_usec +
2014                                                 (1000000lu * procs[i].p_uutime_sec);
2015                         pse.cpu_system_counter = procs[i].p_ustime_usec +
2016                                                 (1000000lu * procs[i].p_ustime_sec);
2017
2018                         /* no I/O data */
2019                         pse.io_rchar = -1;
2020                         pse.io_wchar = -1;
2021                         pse.io_syscr = -1;
2022                         pse.io_syscw = -1;
2023
2024                         ps_list_add (procs[i].p_comm, have_cmdline ? cmdline : NULL, &pse);
2025                 } /* if ((proc_ptr == NULL) || (proc_ptr->p_pid != procs[i].p_pid)) */
2026
2027                 switch (procs[i].p_stat)
2028                 {
2029                         case SSTOP:     stopped++;      break;
2030                         case SSLEEP:    sleeping++;     break;
2031                         case SRUN:      running++;      break;
2032                         case SIDL:      idle++;         break;
2033                         case SONPROC:   onproc++;       break;
2034                         case SDEAD:     dead++;         break;
2035                         case SZOMB:     zombies++;      break;
2036                 }
2037         }
2038
2039         kvm_close(kd);
2040
2041         ps_submit_state ("running",  running);
2042         ps_submit_state ("sleeping", sleeping);
2043         ps_submit_state ("zombies",  zombies);
2044         ps_submit_state ("stopped",  stopped);
2045         ps_submit_state ("onproc",   onproc);
2046         ps_submit_state ("idle",     idle);
2047         ps_submit_state ("dead",     dead);
2048
2049         for (ps_ptr = list_head_g; ps_ptr != NULL; ps_ptr = ps_ptr->next)
2050                 ps_submit_proc_list (ps_ptr);
2051 /* #endif HAVE_LIBKVM_GETPROCS && HAVE_STRUCT_KINFO_PROC_OPENBSD */
2052
2053 #elif HAVE_PROCINFO_H
2054         /* AIX */
2055         int running  = 0;
2056         int sleeping = 0;
2057         int zombies  = 0;
2058         int stopped  = 0;
2059         int paging   = 0;
2060         int blocked  = 0;
2061
2062         pid_t pindex = 0;
2063         int nprocs;
2064
2065         procstat_t *ps;
2066         procstat_entry_t pse;
2067
2068         ps_list_reset ();
2069         while ((nprocs = getprocs64 (procentry, sizeof(struct procentry64),
2070                                         /* fdsinfo = */ NULL, sizeof(struct fdsinfo64),
2071                                         &pindex, MAXPROCENTRY)) > 0)
2072         {
2073                 int i;
2074
2075                 for (i = 0; i < nprocs; i++)
2076                 {
2077                         tid64_t thindex;
2078                         int nthreads;
2079                         char arglist[MAXARGLN+1];
2080                         char *cargs;
2081                         char *cmdline;
2082
2083                         if (procentry[i].pi_state == SNONE) continue;
2084                         /* if (procentry[i].pi_state == SZOMB)  FIXME */
2085
2086                         cmdline = procentry[i].pi_comm;
2087                         cargs = procentry[i].pi_comm;
2088                         if ( procentry[i].pi_flags & SKPROC )
2089                         {
2090                                 if (procentry[i].pi_pid == 0)
2091                                         cmdline = "swapper";
2092                                 cargs = cmdline;
2093                         }
2094                         else
2095                         {
2096                                 if (getargs(&procentry[i], sizeof(struct procentry64), arglist, MAXARGLN) >= 0)
2097                                 {
2098                                         int n;
2099
2100                                         n = -1;
2101                                         while (++n < MAXARGLN)
2102                                         {
2103                                                 if (arglist[n] == '\0')
2104                                                 {
2105                                                         if (arglist[n+1] == '\0')
2106                                                                 break;
2107                                                         arglist[n] = ' ';
2108                                                 }
2109                                         }
2110                                         cargs = arglist;
2111                                 }
2112                         }
2113
2114                         pse.id       = procentry[i].pi_pid;
2115                         pse.age      = 0;
2116                         pse.num_lwp  = procentry[i].pi_thcount;
2117                         pse.num_proc = 1;
2118
2119                         thindex=0;
2120                         while ((nthreads = getthrds64(procentry[i].pi_pid,
2121                                                         thrdentry, sizeof(struct thrdentry64),
2122                                                         &thindex, MAXTHRDENTRY)) > 0)
2123                         {
2124                                 int j;
2125
2126                                 for (j=0; j< nthreads; j++)
2127                                 {
2128                                         switch (thrdentry[j].ti_state)
2129                                         {
2130                                                 /* case TSNONE: break; */
2131                                                 case TSIDL:     blocked++;      break; /* FIXME is really blocked */
2132                                                 case TSRUN:     running++;      break;
2133                                                 case TSSLEEP:   sleeping++;     break;
2134                                                 case TSSWAP:    paging++;       break;
2135                                                 case TSSTOP:    stopped++;      break;
2136                                                 case TSZOMB:    zombies++;      break;
2137                                         }
2138                                 }
2139                                 if (nthreads < MAXTHRDENTRY)
2140                                         break;
2141                         }
2142
2143                         pse.cpu_user = 0;
2144                         /* tv_usec is nanosec ??? */
2145                         pse.cpu_user_counter = procentry[i].pi_ru.ru_utime.tv_sec * 1000000 +
2146                                 procentry[i].pi_ru.ru_utime.tv_usec / 1000;
2147
2148                         pse.cpu_system = 0;
2149                         /* tv_usec is nanosec ??? */
2150                         pse.cpu_system_counter = procentry[i].pi_ru.ru_stime.tv_sec * 1000000 +
2151                                 procentry[i].pi_ru.ru_stime.tv_usec / 1000;
2152
2153                         pse.vmem_minflt = 0;
2154                         pse.vmem_minflt_counter = procentry[i].pi_minflt;
2155                         pse.vmem_majflt = 0;
2156                         pse.vmem_majflt_counter = procentry[i].pi_majflt;
2157
2158                         pse.vmem_size = procentry[i].pi_tsize + procentry[i].pi_dvm * pagesize;
2159                         pse.vmem_rss = (procentry[i].pi_drss + procentry[i].pi_trss) * pagesize;
2160                         /* Not supported */
2161                         pse.vmem_data = 0;
2162                         pse.vmem_code = 0;
2163                         pse.stack_size =  0;
2164
2165                         pse.io_rchar = -1;
2166                         pse.io_wchar = -1;
2167                         pse.io_syscr = -1;
2168                         pse.io_syscw = -1;
2169
2170                         ps_list_add (cmdline, cargs, &pse);
2171                 } /* for (i = 0 .. nprocs) */
2172
2173                 if (nprocs < MAXPROCENTRY)
2174                         break;
2175         } /* while (getprocs64() > 0) */
2176         ps_submit_state ("running",  running);
2177         ps_submit_state ("sleeping", sleeping);
2178         ps_submit_state ("zombies",  zombies);
2179         ps_submit_state ("stopped",  stopped);
2180         ps_submit_state ("paging",   paging);
2181         ps_submit_state ("blocked",  blocked);
2182
2183         for (ps = list_head_g; ps != NULL; ps = ps->next)
2184                 ps_submit_proc_list (ps);
2185 /* #endif HAVE_PROCINFO_H */
2186
2187 #elif KERNEL_SOLARIS
2188         /*
2189          * The Solaris section adds a few more process states and removes some
2190          * process states compared to linux. Most notably there is no "PAGING"
2191          * and "BLOCKED" state for a process.  The rest is similar to the linux
2192          * code.
2193          */
2194         int running = 0;
2195         int sleeping = 0;
2196         int zombies = 0;
2197         int stopped = 0;
2198         int detached = 0;
2199         int daemon = 0;
2200         int system = 0;
2201         int orphan = 0;
2202
2203         struct dirent *ent;
2204         DIR *proc;
2205
2206         int status;
2207         procstat_t *ps_ptr;
2208         char state;
2209
2210         char cmdline[PRARGSZ];
2211
2212         ps_list_reset ();
2213
2214         proc = opendir ("/proc");
2215         if (proc == NULL)
2216                 return (-1);
2217
2218         while ((ent = readdir(proc)) != NULL)
2219         {
2220                 long pid;
2221                 struct procstat ps;
2222                 procstat_entry_t pse;
2223                 char *endptr;
2224
2225                 if (!isdigit ((int) ent->d_name[0]))
2226                         continue;
2227
2228                 pid = strtol (ent->d_name, &endptr, 10);
2229                 if (*endptr != 0) /* value didn't completely parse as a number */
2230                         continue;
2231
2232                 status = ps_read_process (pid, &ps, &state);
2233                 if (status != 0)
2234                 {
2235                         DEBUG("ps_read_process failed: %i", status);
2236                         continue;
2237                 }
2238
2239                 pse.id = pid;
2240                 pse.age = 0;
2241
2242                 pse.num_proc   = ps.num_proc;
2243                 pse.num_lwp    = ps.num_lwp;
2244                 pse.vmem_size  = ps.vmem_size;
2245                 pse.vmem_rss   = ps.vmem_rss;
2246                 pse.vmem_data  = ps.vmem_data;
2247                 pse.vmem_code  = ps.vmem_code;
2248                 pse.stack_size = ps.stack_size;
2249
2250                 pse.vmem_minflt = 0;
2251                 pse.vmem_minflt_counter = ps.vmem_minflt_counter;
2252                 pse.vmem_majflt = 0;
2253                 pse.vmem_majflt_counter = ps.vmem_majflt_counter;
2254
2255                 pse.cpu_user = 0;
2256                 pse.cpu_user_counter = ps.cpu_user_counter;
2257                 pse.cpu_system = 0;
2258                 pse.cpu_system_counter = ps.cpu_system_counter;
2259
2260                 pse.io_rchar = ps.io_rchar;
2261                 pse.io_wchar = ps.io_wchar;
2262                 pse.io_syscr = ps.io_syscr;
2263                 pse.io_syscw = ps.io_syscw;
2264
2265                 switch (state)
2266                 {
2267                         case 'R': running++;  break;
2268                         case 'S': sleeping++; break;
2269                         case 'E': detached++; break;
2270                         case 'Z': zombies++;  break;
2271                         case 'T': stopped++;  break;
2272                         case 'A': daemon++;   break;
2273                         case 'Y': system++;   break;
2274                         case 'O': orphan++;   break;
2275                 }
2276
2277
2278                 ps_list_add (ps.name,
2279                                 ps_get_cmdline (pid, cmdline, sizeof (cmdline)),
2280                                 &pse);
2281         } /* while(readdir) */
2282         closedir (proc);
2283
2284         ps_submit_state ("running",  running);
2285         ps_submit_state ("sleeping", sleeping);
2286         ps_submit_state ("zombies",  zombies);
2287         ps_submit_state ("stopped",  stopped);
2288         ps_submit_state ("detached", detached);
2289         ps_submit_state ("daemon",   daemon);
2290         ps_submit_state ("system",   system);
2291         ps_submit_state ("orphan",   orphan);
2292
2293         for (ps_ptr = list_head_g; ps_ptr != NULL; ps_ptr = ps_ptr->next)
2294                 ps_submit_proc_list (ps_ptr);
2295
2296         read_fork_rate();
2297 #endif /* KERNEL_SOLARIS */
2298
2299         return (0);
2300 } /* int ps_read */
2301
2302 void module_register (void)
2303 {
2304         plugin_register_complex_config ("processes", ps_config);
2305         plugin_register_init ("processes", ps_init);
2306         plugin_register_read ("processes", ps_read);
2307 } /* void module_register */