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 <sys/user.h>
 132 # include <dirent.h>
 133
 134 #ifndef MAXCOMLEN
 135 #  define MAXCOMLEN 16
 136 #endif
 137
 138 /* #endif KERNEL_SOLARIS */
 139
 140 #else
 141 # error "No applicable input method."
 142 #endif
 143
 144 #if HAVE_REGEX_H
 145 # include <regex.h>
 146 #endif
 147
 148 #if HAVE_KSTAT_H
 149 # include <kstat.h>
 150 #endif
 151
 152 #ifndef CMDLINE_BUFFER_SIZE
 153 # if defined(ARG_MAX) && (ARG_MAX < 4096)
 154 #  define CMDLINE_BUFFER_SIZE ARG_MAX
 155 # else
 156 #  define CMDLINE_BUFFER_SIZE 4096
 157 # endif
 158 #endif
 159
 160 typedef struct procstat_entry_s
 161 {
 162         unsigned long id;
 163         unsigned long age;
 164
 165         unsigned long num_proc;
 166         unsigned long num_lwp;
 167         unsigned long vmem_size;
 168         unsigned long vmem_rss;
 169         unsigned long vmem_data;
 170         unsigned long vmem_code;
 171         unsigned long stack_size;
 172
 173         unsigned long vmem_minflt;
 174         unsigned long vmem_majflt;
 175         derive_t      vmem_minflt_counter;
 176         derive_t      vmem_majflt_counter;
 177
 178         unsigned long cpu_user;
 179         unsigned long cpu_system;
 180         derive_t      cpu_user_counter;
 181         derive_t      cpu_system_counter;
 182
 183         /* io data */
 184         derive_t io_rchar;
 185         derive_t io_wchar;
 186         derive_t io_syscr;
 187         derive_t io_syscw;
 188
 189         derive_t cswitch_vol;
 190         derive_t cswitch_invol;
 191
 192         struct procstat_entry_s *next;
 193 } procstat_entry_t;
 194
 195 #define PROCSTAT_NAME_LEN 256
 196 typedef struct procstat
 197 {
 198         char          name[PROCSTAT_NAME_LEN];
 199 #if HAVE_REGEX_H
 200         regex_t *re;
 201 #endif
 202
 203         unsigned long num_proc;
 204         unsigned long num_lwp;
 205         unsigned long vmem_size;
 206         unsigned long vmem_rss;
 207         unsigned long vmem_data;
 208         unsigned long vmem_code;
 209         unsigned long stack_size;
 210
 211         derive_t vmem_minflt_counter;
 212         derive_t vmem_majflt_counter;
 213
 214         derive_t cpu_user_counter;
 215         derive_t cpu_system_counter;
 216
 217         /* io data */
 218         derive_t io_rchar;
 219         derive_t io_wchar;
 220         derive_t io_syscr;
 221         derive_t io_syscw;
 222
 223         derive_t cswitch_vol;
 224         derive_t cswitch_invol;
 225
 226         struct procstat   *next;
 227         struct procstat_entry_s *instances;
 228 } procstat_t;
 229
 230 static procstat_t *list_head_g = NULL;
 231
 232 static _Bool report_ctx_switch = 0;
 233
 234 #if HAVE_THREAD_INFO
 235 static mach_port_t port_host_self;
 236 static mach_port_t port_task_self;
 237
 238 static processor_set_name_array_t pset_list;
 239 static mach_msg_type_number_t     pset_list_len;
 240 /* #endif HAVE_THREAD_INFO */
 241
 242 #elif KERNEL_LINUX
 243 static long pagesize_g;
 244 /* #endif KERNEL_LINUX */
 245
 246 #elif HAVE_LIBKVM_GETPROCS && (HAVE_STRUCT_KINFO_PROC_FREEBSD || HAVE_STRUCT_KINFO_PROC_OPENBSD)
 247 static int pagesize;
 248 /* #endif HAVE_LIBKVM_GETPROCS && (HAVE_STRUCT_KINFO_PROC_FREEBSD || HAVE_STRUCT_KINFO_PROC_OPENBSD) */
 249
 250 #elif HAVE_PROCINFO_H
 251 static  struct procentry64 procentry[MAXPROCENTRY];
 252 static  struct thrdentry64 thrdentry[MAXTHRDENTRY];
 253 static int pagesize;
 254
 255 #ifndef _AIXVERSION_610
 256 int     getprocs64 (void *procsinfo, int sizproc, void *fdsinfo, int sizfd, pid_t *index, int count);
 257 int     getthrds64( pid_t, void *, int, tid64_t *, int );
 258 #endif
 259 int getargs (void *processBuffer, int bufferLen, char *argsBuffer, int argsLen);
 260 #endif /* HAVE_PROCINFO_H */
 261
 262 /* put name of process from config to list_head_g tree
 263  * list_head_g is a list of 'procstat_t' structs with
 264  * processes names we want to watch */
 265 static void ps_list_register (const char *name, const char *regexp)
 266 {
 267         procstat_t *new;
 268         procstat_t *ptr;
 269         int status;
 270
 271         new = calloc (1, sizeof (*new));
 272         if (new == NULL)
 273         {
 274                 ERROR ("processes plugin: ps_list_register: calloc failed.");
 275                 return;
 276         }
 277         sstrncpy (new->name, name, sizeof (new->name));
 278
 279 #if HAVE_REGEX_H
 280         if (regexp != NULL)
 281         {
 282                 DEBUG ("ProcessMatch: adding \"%s\" as criteria to process %s.", regexp, name);
 283                 new->re = malloc (sizeof (*new->re));
 284                 if (new->re == NULL)
 285                 {
 286                         ERROR ("processes plugin: ps_list_register: malloc failed.");
 287                         sfree (new);
 288                         return;
 289                 }
 290
 291                 status = regcomp (new->re, regexp, REG_EXTENDED | REG_NOSUB);
 292                 if (status != 0)
 293                 {
 294                         DEBUG ("ProcessMatch: compiling the regular expression \"%s\" failed.", regexp);
 295                         sfree (new->re);
 296                         sfree (new);
 297                         return;
 298                 }
 299         }
 300 #else
 301         if (regexp != NULL)
 302         {
 303                 ERROR ("processes plugin: ps_list_register: "
 304                                 "Regular expression \"%s\" found in config "
 305                                 "file, but support for regular expressions "
 306                                 "has been disabled at compile time.",
 307                                 regexp);
 308                 sfree (new);
 309                 return;
 310         }
 311 #endif
 312
 313         for (ptr = list_head_g; ptr != NULL; ptr = ptr->next)
 314         {
 315                 if (strcmp (ptr->name, name) == 0)
 316                 {
 317                         WARNING ("processes plugin: You have configured more "
 318                                         "than one `Process' or "
 319                                         "`ProcessMatch' with the same name. "
 320                                         "All but the first setting will be "
 321                                         "ignored.");
 322 #if HAVE_REGEX_H
 323                         sfree (new->re);
 324 #endif
 325                         sfree (new);
 326                         return;
 327                 }
 328
 329                 if (ptr->next == NULL)
 330                         break;
 331         }
 332
 333         if (ptr == NULL)
 334                 list_head_g = new;
 335         else
 336                 ptr->next = new;
 337 } /* void ps_list_register */
 338
 339 /* try to match name against entry, returns 1 if success */
 340 static int ps_list_match (const char *name, const char *cmdline, procstat_t *ps)
 341 {
 342 #if HAVE_REGEX_H
 343         if (ps->re != NULL)
 344         {
 345                 int status;
 346                 const char *str;
 347
 348                 str = cmdline;
 349                 if ((str == NULL) || (str[0] == 0))
 350                         str = name;
 351
 352                 assert (str != NULL);
 353
 354                 status = regexec (ps->re, str,
 355                                 /* nmatch = */ 0,
 356                                 /* pmatch = */ NULL,
 357                                 /* eflags = */ 0);
 358                 if (status == 0)
 359                         return (1);
 360         }
 361         else
 362 #endif
 363         if (strcmp (ps->name, name) == 0)
 364                 return (1);
 365
 366         return (0);
 367 } /* int ps_list_match */
 368
 369 static void ps_update_counter (
 370         _Bool init,
 371         derive_t *group_counter,
 372         derive_t *curr_counter, unsigned long *curr_value,
 373         derive_t new_counter, unsigned long new_value) {
 374     if (init)
 375     {
 376         *curr_value = new_value;
 377         *curr_counter += new_value;
 378         *group_counter += new_value;
 379         return;
 380     }
 381
 382     if (new_counter < *curr_counter)
 383     {
 384         *curr_value = new_counter + (ULONG_MAX - *curr_counter);
 385     }
 386     else
 387     {
 388         *curr_value = new_counter - *curr_counter;
 389     }
 390     *curr_counter = new_counter;
 391     *group_counter += *curr_value;
 392 }
 393
 394 /* add process entry to 'instances' of process 'name' (or refresh it) */
 395 static void ps_list_add (const char *name, const char *cmdline, procstat_entry_t *entry)
 396 {
 397         procstat_t *ps;
 398         procstat_entry_t *pse;
 399
 400         if (entry->id == 0)
 401                 return;
 402
 403         for (ps = list_head_g; ps != NULL; ps = ps->next)
 404         {
 405         _Bool want_init;
 406
 407                 if ((ps_list_match (name, cmdline, ps)) == 0)
 408                         continue;
 409
 410                 for (pse = ps->instances; pse != NULL; pse = pse->next)
 411                         if ((pse->id == entry->id) || (pse->next == NULL))
 412                                 break;
 413
 414                 if ((pse == NULL) || (pse->id != entry->id))
 415                 {
 416                         procstat_entry_t *new;
 417
 418                         new = calloc (1, sizeof (*new));
 419                         if (new == NULL)
 420                                 return;
 421                         new->id = entry->id;
 422
 423                         if (pse == NULL)
 424                                 ps->instances = new;
 425                         else
 426                                 pse->next = new;
 427
 428                         pse = new;
 429                 }
 430
 431                 pse->age = 0;
 432                 pse->num_proc   = entry->num_proc;
 433                 pse->num_lwp    = entry->num_lwp;
 434                 pse->vmem_size  = entry->vmem_size;
 435                 pse->vmem_rss   = entry->vmem_rss;
 436                 pse->vmem_data  = entry->vmem_data;
 437                 pse->vmem_code  = entry->vmem_code;
 438                 pse->stack_size = entry->stack_size;
 439                 pse->io_rchar   = entry->io_rchar;
 440                 pse->io_wchar   = entry->io_wchar;
 441                 pse->io_syscr   = entry->io_syscr;
 442                 pse->io_syscw   = entry->io_syscw;
 443                 pse->cswitch_vol   = entry->cswitch_vol;
 444                 pse->cswitch_invol = entry->cswitch_invol;
 445
 446                 ps->num_proc   += pse->num_proc;
 447                 ps->num_lwp    += pse->num_lwp;
 448                 ps->vmem_size  += pse->vmem_size;
 449                 ps->vmem_rss   += pse->vmem_rss;
 450                 ps->vmem_data  += pse->vmem_data;
 451                 ps->vmem_code  += pse->vmem_code;
 452                 ps->stack_size += pse->stack_size;
 453
 454                 ps->io_rchar   += ((pse->io_rchar == -1)?0:pse->io_rchar);
 455                 ps->io_wchar   += ((pse->io_wchar == -1)?0:pse->io_wchar);
 456                 ps->io_syscr   += ((pse->io_syscr == -1)?0:pse->io_syscr);
 457                 ps->io_syscw   += ((pse->io_syscw == -1)?0:pse->io_syscw);
 458
 459                 ps->cswitch_vol   += ((pse->cswitch_vol == -1)?0:pse->cswitch_vol);
 460                 ps->cswitch_invol += ((pse->cswitch_invol == -1)?0:pse->cswitch_invol);
 461
 462                 want_init = (entry->vmem_minflt_counter == 0)
 463                                 && (entry->vmem_majflt_counter == 0);
 464                 ps_update_counter (want_init,
 465                                 &ps->vmem_minflt_counter,
 466                                 &pse->vmem_minflt_counter, &pse->vmem_minflt,
 467                                 entry->vmem_minflt_counter, entry->vmem_minflt);
 468                 ps_update_counter (want_init,
 469                                 &ps->vmem_majflt_counter,
 470                                 &pse->vmem_majflt_counter, &pse->vmem_majflt,
 471                                 entry->vmem_majflt_counter, entry->vmem_majflt);
 472
 473                 want_init = (entry->cpu_user_counter == 0)
 474                                 && (entry->cpu_system_counter == 0);
 475                 ps_update_counter (want_init,
 476                                 &ps->cpu_user_counter,
 477                                 &pse->cpu_user_counter, &pse->cpu_user,
 478                                 entry->cpu_user_counter, entry->cpu_user);
 479                 ps_update_counter (want_init,
 480                                 &ps->cpu_system_counter,
 481                                 &pse->cpu_system_counter, &pse->cpu_system,
 482                                 entry->cpu_system_counter, entry->cpu_system);
 483         }
 484 }
 485
 486 /* remove old entries from instances of processes in list_head_g */
 487 static void ps_list_reset (void)
 488 {
 489         procstat_t *ps;
 490         procstat_entry_t *pse;
 491         procstat_entry_t *pse_prev;
 492
 493         for (ps = list_head_g; ps != NULL; ps = ps->next)
 494         {
 495                 ps->num_proc    = 0;
 496                 ps->num_lwp     = 0;
 497                 ps->vmem_size   = 0;
 498                 ps->vmem_rss    = 0;
 499                 ps->vmem_data   = 0;
 500                 ps->vmem_code   = 0;
 501                 ps->stack_size  = 0;
 502                 ps->io_rchar = -1;
 503                 ps->io_wchar = -1;
 504                 ps->io_syscr = -1;
 505                 ps->io_syscw = -1;
 506                 ps->cswitch_vol   = -1;
 507                 ps->cswitch_invol = -1;
 508
 509                 pse_prev = NULL;
 510                 pse = ps->instances;
 511                 while (pse != NULL)
 512                 {
 513                         if (pse->age > 10)
 514                         {
 515                                 DEBUG ("Removing this procstat entry cause it's too old: "
 516                                                 "id = %lu; name = %s;",
 517                                                 pse->id, ps->name);
 518
 519                                 if (pse_prev == NULL)
 520                                 {
 521                                         ps->instances = pse->next;
 522                                         free (pse);
 523                                         pse = ps->instances;
 524                                 }
 525                                 else
 526                                 {
 527                                         pse_prev->next = pse->next;
 528                                         free (pse);
 529                                         pse = pse_prev->next;
 530                                 }
 531                         }
 532                         else
 533                         {
 534                                 pse->age++;
 535                                 pse_prev = pse;
 536                                 pse = pse->next;
 537                         }
 538                 } /* while (pse != NULL) */
 539         } /* for (ps = list_head_g; ps != NULL; ps = ps->next) */
 540 }
 541
 542 /* put all pre-defined 'Process' names from config to list_head_g tree */
 543 static int ps_config (oconfig_item_t *ci)
 544 {
 545         int i;
 546
 547 #if KERNEL_LINUX
 548         const size_t max_procname_len = 15;
 549 #elif KERNEL_SOLARIS || KERNEL_FREEBSD
 550         const size_t max_procname_len = MAXCOMLEN -1;
 551 #endif
 552
 553         for (i = 0; i < ci->children_num; ++i) {
 554                 oconfig_item_t *c = ci->children + i;
 555
 556                 if (strcasecmp (c->key, "Process") == 0)
 557                 {
 558                         if ((c->values_num != 1)
 559                                         || (OCONFIG_TYPE_STRING != c->values[0].type)) {
 560                                 ERROR ("processes plugin: `Process' expects exactly "
 561                                                 "one string argument (got %i).",
 562                                                 c->values_num);
 563                                 continue;
 564                         }
 565
 566                         if (c->children_num != 0) {
 567                                 WARNING ("processes plugin: the `Process' config option "
 568                                                 "does not expect any child elements -- ignoring "
 569                                                 "content (%i elements) of the <Process '%s'> block.",
 570                                                 c->children_num, c->values[0].value.string);
 571                         }
 572
 573 #if KERNEL_LINUX || KERNEL_SOLARIS || KERNEL_FREEBSD
 574                         if (strlen (c->values[0].value.string) > max_procname_len) {
 575                                 WARNING ("processes plugin: this platform has a %zu character limit "
 576                                                 "to process names. The `Process \"%s\"' option will "
 577                                                 "not work as expected.",
 578                                                 max_procname_len, c->values[0].value.string);
 579                         }
 580 #endif
 581
 582                         ps_list_register (c->values[0].value.string, NULL);
 583                 }
 584                 else if (strcasecmp (c->key, "ProcessMatch") == 0)
 585                 {
 586                         if ((c->values_num != 2)
 587                                         || (OCONFIG_TYPE_STRING != c->values[0].type)
 588                                         || (OCONFIG_TYPE_STRING != c->values[1].type))
 589                         {
 590                                 ERROR ("processes plugin: `ProcessMatch' needs exactly "
 591                                                 "two string arguments (got %i).",
 592                                                 c->values_num);
 593                                 continue;
 594                         }
 595
 596                         if (c->children_num != 0) {
 597                                 WARNING ("processes plugin: the `ProcessMatch' config option "
 598                                                 "does not expect any child elements -- ignoring "
 599                                                 "content (%i elements) of the <ProcessMatch '%s' '%s'> "
 600                                                 "block.", c->children_num, c->values[0].value.string,
 601                                                 c->values[1].value.string);
 602                         }
 603
 604                         ps_list_register (c->values[0].value.string,
 605                                         c->values[1].value.string);
 606                 }
 607                 else if (strcasecmp (c->key, "CollectContextSwitch") == 0)
 608                 {
 609                         cf_util_get_boolean (c, &report_ctx_switch);
 610                 }
 611                 else
 612                 {
 613                         ERROR ("processes plugin: The `%s' configuration option is not "
 614                                         "understood and will be ignored.", c->key);
 615                         continue;
 616                 }
 617         }
 618
 619         return (0);
 620 }
 621
 622 static int ps_init (void)
 623 {
 624 #if HAVE_THREAD_INFO
 625         kern_return_t status;
 626
 627         port_host_self = mach_host_self ();
 628         port_task_self = mach_task_self ();
 629
 630         if (pset_list != NULL)
 631         {
 632                 vm_deallocate (port_task_self,
 633                                 (vm_address_t) pset_list,
 634                                 pset_list_len * sizeof (processor_set_t));
 635                 pset_list = NULL;
 636                 pset_list_len = 0;
 637         }
 638
 639         if ((status = host_processor_sets (port_host_self,
 640                                         &pset_list,
 641                                         &pset_list_len)) != KERN_SUCCESS)
 642         {
 643                 ERROR ("host_processor_sets failed: %s\n",
 644                                 mach_error_string (status));
 645                 pset_list = NULL;
 646                 pset_list_len = 0;
 647                 return (-1);
 648         }
 649 /* #endif HAVE_THREAD_INFO */
 650
 651 #elif KERNEL_LINUX
 652         pagesize_g = sysconf(_SC_PAGESIZE);
 653         DEBUG ("pagesize_g = %li; CONFIG_HZ = %i;",
 654                         pagesize_g, CONFIG_HZ);
 655 /* #endif KERNEL_LINUX */
 656
 657 #elif HAVE_LIBKVM_GETPROCS && (HAVE_STRUCT_KINFO_PROC_FREEBSD || HAVE_STRUCT_KINFO_PROC_OPENBSD)
 658         pagesize = getpagesize();
 659 /* #endif HAVE_LIBKVM_GETPROCS && (HAVE_STRUCT_KINFO_PROC_FREEBSD || HAVE_STRUCT_KINFO_PROC_OPENBSD) */
 660
 661 #elif HAVE_PROCINFO_H
 662         pagesize = getpagesize();
 663 #endif /* HAVE_PROCINFO_H */
 664
 665         return (0);
 666 } /* int ps_init */
 667
 668 /* submit global state (e.g.: qty of zombies, running, etc..) */
 669 static void ps_submit_state (const char *state, double value)
 670 {
 671         value_t values[1];
 672         value_list_t vl = VALUE_LIST_INIT;
 673
 674         values[0].gauge = value;
 675
 676         vl.values = values;
 677         vl.values_len = 1;
 678         sstrncpy (vl.host, hostname_g, sizeof (vl.host));
 679         sstrncpy (vl.plugin, "processes", sizeof (vl.plugin));
 680         sstrncpy (vl.plugin_instance, "", sizeof (vl.plugin_instance));
 681         sstrncpy (vl.type, "ps_state", sizeof (vl.type));
 682         sstrncpy (vl.type_instance, state, sizeof (vl.type_instance));
 683
 684         plugin_dispatch_values (&vl);
 685 }
 686
 687 /* submit info about specific process (e.g.: memory taken, cpu usage, etc..) */
 688 static void ps_submit_proc_list (procstat_t *ps)
 689 {
 690         value_t values[2];
 691         value_list_t vl = VALUE_LIST_INIT;
 692
 693         vl.values = values;
 694         vl.values_len = 2;
 695         sstrncpy (vl.host, hostname_g, sizeof (vl.host));
 696         sstrncpy (vl.plugin, "processes", sizeof (vl.plugin));
 697         sstrncpy (vl.plugin_instance, ps->name, sizeof (vl.plugin_instance));
 698
 699         sstrncpy (vl.type, "ps_vm", sizeof (vl.type));
 700         vl.values[0].gauge = ps->vmem_size;
 701         vl.values_len = 1;
 702         plugin_dispatch_values (&vl);
 703
 704         sstrncpy (vl.type, "ps_rss", sizeof (vl.type));
 705         vl.values[0].gauge = ps->vmem_rss;
 706         vl.values_len = 1;
 707         plugin_dispatch_values (&vl);
 708
 709         sstrncpy (vl.type, "ps_data", sizeof (vl.type));
 710         vl.values[0].gauge = ps->vmem_data;
 711         vl.values_len = 1;
 712         plugin_dispatch_values (&vl);
 713
 714         sstrncpy (vl.type, "ps_code", sizeof (vl.type));
 715         vl.values[0].gauge = ps->vmem_code;
 716         vl.values_len = 1;
 717         plugin_dispatch_values (&vl);
 718
 719         sstrncpy (vl.type, "ps_stacksize", sizeof (vl.type));
 720         vl.values[0].gauge = ps->stack_size;
 721         vl.values_len = 1;
 722         plugin_dispatch_values (&vl);
 723
 724         sstrncpy (vl.type, "ps_cputime", sizeof (vl.type));
 725         vl.values[0].derive = ps->cpu_user_counter;
 726         vl.values[1].derive = ps->cpu_system_counter;
 727         vl.values_len = 2;
 728         plugin_dispatch_values (&vl);
 729
 730         sstrncpy (vl.type, "ps_count", sizeof (vl.type));
 731         vl.values[0].gauge = ps->num_proc;
 732         vl.values[1].gauge = ps->num_lwp;
 733         vl.values_len = 2;
 734         plugin_dispatch_values (&vl);
 735
 736         sstrncpy (vl.type, "ps_pagefaults", sizeof (vl.type));
 737         vl.values[0].derive = ps->vmem_minflt_counter;
 738         vl.values[1].derive = ps->vmem_majflt_counter;
 739         vl.values_len = 2;
 740         plugin_dispatch_values (&vl);
 741
 742         if ( (ps->io_rchar != -1) && (ps->io_wchar != -1) )
 743         {
 744                 sstrncpy (vl.type, "ps_disk_octets", sizeof (vl.type));
 745                 vl.values[0].derive = ps->io_rchar;
 746                 vl.values[1].derive = ps->io_wchar;
 747                 vl.values_len = 2;
 748                 plugin_dispatch_values (&vl);
 749         }
 750
 751         if ( (ps->io_syscr != -1) && (ps->io_syscw != -1) )
 752         {
 753                 sstrncpy (vl.type, "ps_disk_ops", sizeof (vl.type));
 754                 vl.values[0].derive = ps->io_syscr;
 755                 vl.values[1].derive = ps->io_syscw;
 756                 vl.values_len = 2;
 757                 plugin_dispatch_values (&vl);
 758         }
 759
 760         if ( report_ctx_switch )
 761         {
 762                 sstrncpy (vl.type, "contextswitch", sizeof (vl.type));
 763                 sstrncpy (vl.type_instance, "voluntary", sizeof (vl.type_instance));
 764                 vl.values[0].derive = ps->cswitch_vol;
 765                 vl.values_len = 1;
 766                 plugin_dispatch_values (&vl);
 767
 768                 sstrncpy (vl.type, "contextswitch", sizeof (vl.type));
 769                 sstrncpy (vl.type_instance, "involuntary", sizeof (vl.type_instance));
 770                 vl.values[0].derive = ps->cswitch_invol;
 771                 vl.values_len = 1;
 772                 plugin_dispatch_values (&vl);
 773         }
 774
 775         DEBUG ("name = %s; num_proc = %lu; num_lwp = %lu; "
 776                         "vmem_size = %lu; vmem_rss = %lu; vmem_data = %lu; "
 777                         "vmem_code = %lu; "
 778                         "vmem_minflt_counter = %"PRIi64"; vmem_majflt_counter = %"PRIi64"; "
 779                         "cpu_user_counter = %"PRIi64"; cpu_system_counter = %"PRIi64"; "
 780                         "io_rchar = %"PRIi64"; io_wchar = %"PRIi64"; "
 781                         "io_syscr = %"PRIi64"; io_syscw = %"PRIi64"; "
 782                         "cswitch_vol = %"PRIi64"; cswitch_invol = %"PRIi64";",
 783                         ps->name, ps->num_proc, ps->num_lwp,
 784                         ps->vmem_size, ps->vmem_rss,
 785                         ps->vmem_data, ps->vmem_code,
 786                         ps->vmem_minflt_counter, ps->vmem_majflt_counter,
 787                         ps->cpu_user_counter, ps->cpu_system_counter,
 788                         ps->io_rchar, ps->io_wchar, ps->io_syscr, ps->io_syscw,
 789                         ps->cswitch_vol, ps->cswitch_invol);
 790 } /* void ps_submit_proc_list */
 791
 792 #if KERNEL_LINUX || KERNEL_SOLARIS
 793 static void ps_submit_fork_rate (derive_t value)
 794 {
 795         value_t values[1];
 796         value_list_t vl = VALUE_LIST_INIT;
 797
 798         values[0].derive = value;
 799
 800         vl.values = values;
 801         vl.values_len = 1;
 802         sstrncpy(vl.host, hostname_g, sizeof (vl.host));
 803         sstrncpy(vl.plugin, "processes", sizeof (vl.plugin));
 804         sstrncpy(vl.plugin_instance, "", sizeof (vl.plugin_instance));
 805         sstrncpy(vl.type, "fork_rate", sizeof (vl.type));
 806         sstrncpy(vl.type_instance, "", sizeof (vl.type_instance));
 807
 808         plugin_dispatch_values(&vl);
 809 }
 810 #endif /* KERNEL_LINUX || KERNEL_SOLARIS*/
 811
 812 /* ------- additional functions for KERNEL_LINUX/HAVE_THREAD_INFO ------- */
 813 #if KERNEL_LINUX
 814 static procstat_t *ps_read_tasks_status (long pid, procstat_t *ps)
 815 {
 816         char           dirname[64];
 817         DIR           *dh;
 818         char           filename[64];
 819         FILE          *fh;
 820         struct dirent *ent;
 821         derive_t cswitch_vol = 0;
 822         derive_t cswitch_invol = 0;
 823         char buffer[1024];
 824         char *fields[8];
 825         int numfields;
 826
 827         ssnprintf (dirname, sizeof (dirname), "/proc/%li/task", pid);
 828
 829         if ((dh = opendir (dirname)) == NULL)
 830         {
 831                 DEBUG ("Failed to open directory `%s'", dirname);
 832                 return (NULL);
 833         }
 834
 835         while ((ent = readdir (dh)) != NULL)
 836         {
 837                 char *tpid;
 838
 839                 if (!isdigit ((int) ent->d_name[0]))
 840                         continue;
 841
 842                 tpid = ent->d_name;
 843
 844                 ssnprintf (filename, sizeof (filename), "/proc/%li/task/%s/status", pid, tpid);
 845                 if ((fh = fopen (filename, "r")) == NULL)
 846                 {
 847                         DEBUG ("Failed to open file `%s'", filename);
 848                         continue;
 849                 }
 850
 851                 while (fgets (buffer, sizeof(buffer), fh) != NULL)
 852                 {
 853                         derive_t tmp;
 854                         char *endptr;
 855
 856                         if (strncmp (buffer, "voluntary_ctxt_switches", 23) != 0
 857                                 && strncmp (buffer, "nonvoluntary_ctxt_switches", 26) != 0)
 858                                 continue;
 859
 860                         numfields = strsplit (buffer, fields,
 861                                 STATIC_ARRAY_SIZE (fields));
 862
 863                         if (numfields < 2)
 864                                 continue;
 865
 866                         errno = 0;
 867                         endptr = NULL;
 868                         tmp = (derive_t) strtoll (fields[1], &endptr, /* base = */ 10);
 869                         if ((errno == 0) && (endptr != fields[1]))
 870                         {
 871                                 if (strncmp (buffer, "voluntary_ctxt_switches", 23) == 0)
 872                                 {
 873                                         cswitch_vol += tmp;
 874                                 }
 875                                 else if (strncmp (buffer, "nonvoluntary_ctxt_switches", 26) == 0)
 876                                 {
 877                                         cswitch_invol += tmp;
 878                                 }
 879                         }
 880                 } /* while (fgets) */
 881
 882                 if (fclose (fh))
 883                 {
 884                         char errbuf[1024];
 885                                 WARNING ("processes: fclose: %s",
 886                                         sstrerror (errno, errbuf, sizeof (errbuf)));
 887                 }
 888         }
 889         closedir (dh);
 890
 891         ps->cswitch_vol = cswitch_vol;
 892         ps->cswitch_invol = cswitch_invol;
 893
 894         return (ps);
 895 } /* int *ps_read_tasks_status */
 896
 897 /* Read data from /proc/pid/status */
 898 static procstat_t *ps_read_status (long pid, procstat_t *ps)
 899 {
 900         FILE *fh;
 901         char buffer[1024];
 902         char filename[64];
 903         unsigned long lib = 0;
 904         unsigned long exe = 0;
 905         unsigned long data = 0;
 906         unsigned long threads = 0;
 907         char *fields[8];
 908         int numfields;
 909
 910         ssnprintf (filename, sizeof (filename), "/proc/%li/status", pid);
 911         if ((fh = fopen (filename, "r")) == NULL)
 912                 return (NULL);
 913
 914         while (fgets (buffer, sizeof(buffer), fh) != NULL)
 915         {
 916                 unsigned long tmp;
 917                 char *endptr;
 918
 919                 if (strncmp (buffer, "Vm", 2) != 0
 920                                 && strncmp (buffer, "Threads", 7) != 0)
 921                         continue;
 922
 923                 numfields = strsplit (buffer, fields,
 924                                 STATIC_ARRAY_SIZE (fields));
 925
 926                 if (numfields < 2)
 927                         continue;
 928
 929                 errno = 0;
 930                 endptr = NULL;
 931                 tmp = strtoul (fields[1], &endptr, /* base = */ 10);
 932                 if ((errno == 0) && (endptr != fields[1]))
 933                 {
 934                         if (strncmp (buffer, "VmData", 6) == 0)
 935                         {
 936                                 data = tmp;
 937                         }
 938                         else if (strncmp (buffer, "VmLib", 5) == 0)
 939                         {
 940                                 lib = tmp;
 941                         }
 942                         else if  (strncmp(buffer, "VmExe", 5) == 0)
 943                         {
 944                                 exe = tmp;
 945                         }
 946                         else if  (strncmp(buffer, "Threads", 7) == 0)
 947                         {
 948                                 threads = tmp;
 949                         }
 950                 }
 951         } /* while (fgets) */
 952
 953         if (fclose (fh))
 954         {
 955                 char errbuf[1024];
 956                 WARNING ("processes: fclose: %s",
 957                                 sstrerror (errno, errbuf, sizeof (errbuf)));
 958         }
 959
 960         ps->vmem_data = data * 1024;
 961         ps->vmem_code = (exe + lib) * 1024;
 962         if (threads != 0)
 963                 ps->num_lwp = threads;
 964
 965         return (ps);
 966 } /* procstat_t *ps_read_vmem */
 967
 968 static procstat_t *ps_read_io (long pid, procstat_t *ps)
 969 {
 970         FILE *fh;
 971         char buffer[1024];
 972         char filename[64];
 973
 974         char *fields[8];
 975         int numfields;
 976
 977         ssnprintf (filename, sizeof (filename), "/proc/%li/io", pid);
 978         if ((fh = fopen (filename, "r")) == NULL)
 979                 return (NULL);
 980
 981         while (fgets (buffer, sizeof (buffer), fh) != NULL)
 982         {
 983                 derive_t *val = NULL;
 984                 long long tmp;
 985                 char *endptr;
 986
 987                 if (strncasecmp (buffer, "rchar:", 6) == 0)
 988                         val = &(ps->io_rchar);
 989                 else if (strncasecmp (buffer, "wchar:", 6) == 0)
 990                         val = &(ps->io_wchar);
 991                 else if (strncasecmp (buffer, "syscr:", 6) == 0)
 992                         val = &(ps->io_syscr);
 993                 else if (strncasecmp (buffer, "syscw:", 6) == 0)
 994                         val = &(ps->io_syscw);
 995                 else
 996                         continue;
 997
 998                 numfields = strsplit (buffer, fields,
 999                                 STATIC_ARRAY_SIZE (fields));
1000
1001                 if (numfields < 2)
1002                         continue;
1003
1004                 errno = 0;
1005                 endptr = NULL;
1006                 tmp = strtoll (fields[1], &endptr, /* base = */ 10);
1007                 if ((errno != 0) || (endptr == fields[1]))
1008                         *val = -1;
1009                 else
1010                         *val = (derive_t) tmp;
1011         } /* while (fgets) */
1012
1013         if (fclose (fh))
1014         {
1015                 char errbuf[1024];
1016                 WARNING ("processes: fclose: %s",
1017                                 sstrerror (errno, errbuf, sizeof (errbuf)));
1018         }
1019
1020         return (ps);
1021 } /* procstat_t *ps_read_io */
1022
1023 static int ps_read_process (long pid, procstat_t *ps, char *state)
1024 {
1025         char  filename[64];
1026         char  buffer[1024];
1027
1028         char *fields[64];
1029         char  fields_len;
1030
1031         size_t buffer_len;
1032
1033         char  *buffer_ptr;
1034         size_t name_start_pos;
1035         size_t name_end_pos;
1036         size_t name_len;
1037
1038         derive_t cpu_user_counter;
1039         derive_t cpu_system_counter;
1040         long long unsigned vmem_size;
1041         long long unsigned vmem_rss;
1042         long long unsigned stack_size;
1043
1044         ssize_t status;
1045
1046         memset (ps, 0, sizeof (procstat_t));
1047
1048         ssnprintf (filename, sizeof (filename), "/proc/%li/stat", pid);
1049
1050         status = read_file_contents (filename, buffer, sizeof(buffer) - 1);
1051         if (status <= 0)
1052                 return (-1);
1053         buffer_len = (size_t) status;
1054         buffer[buffer_len] = 0;
1055
1056         /* The name of the process is enclosed in parens. Since the name can
1057          * contain parens itself, spaces, numbers and pretty much everything
1058          * else, use these to determine the process name. We don't use
1059          * strchr(3) and strrchr(3) to avoid pointer arithmetic which would
1060          * otherwise be required to determine name_len. */
1061         name_start_pos = 0;
1062         while (name_start_pos < buffer_len && buffer[name_start_pos] != '(')
1063                 name_start_pos++;
1064
1065         name_end_pos = buffer_len;
1066         while (name_end_pos > 0 && buffer[name_end_pos] != ')')
1067                 name_end_pos--;
1068
1069         /* Either '(' or ')' is not found or they are in the wrong order.
1070          * Anyway, something weird that shouldn't happen ever. */
1071         if (name_start_pos >= name_end_pos)
1072         {
1073                 ERROR ("processes plugin: name_start_pos = %zu >= name_end_pos = %zu",
1074                                 name_start_pos, name_end_pos);
1075                 return (-1);
1076         }
1077
1078         name_len = (name_end_pos - name_start_pos) - 1;
1079         if (name_len >= sizeof (ps->name))
1080                 name_len = sizeof (ps->name) - 1;
1081
1082         sstrncpy (ps->name, &buffer[name_start_pos + 1], name_len + 1);
1083
1084         if ((buffer_len - name_end_pos) < 2)
1085                 return (-1);
1086         buffer_ptr = &buffer[name_end_pos + 2];
1087
1088         fields_len = strsplit (buffer_ptr, fields, STATIC_ARRAY_SIZE (fields));
1089         if (fields_len < 22)
1090         {
1091                 DEBUG ("processes plugin: ps_read_process (pid = %li):"
1092                                 " `%s' has only %i fields..",
1093                                 pid, filename, fields_len);
1094                 return (-1);
1095         }
1096
1097         *state = fields[0][0];
1098
1099         if (*state == 'Z')
1100         {
1101                 ps->num_lwp  = 0;
1102                 ps->num_proc = 0;
1103         }
1104         else
1105         {
1106                 ps->num_lwp = strtoul (fields[17], /* endptr = */ NULL, /* base = */ 10);
1107                 if ((ps_read_status(pid, ps)) == NULL)
1108                 {
1109                         /* No VMem data */
1110                         ps->vmem_data = -1;
1111                         ps->vmem_code = -1;
1112                         DEBUG("ps_read_process: did not get vmem data for pid %li", pid);
1113                 }
1114                 if (ps->num_lwp == 0)
1115                         ps->num_lwp = 1;
1116                 ps->num_proc = 1;
1117         }
1118
1119         /* Leave the rest at zero if this is only a zombi */
1120         if (ps->num_proc == 0)
1121         {
1122                 DEBUG ("processes plugin: This is only a zombie: pid = %li; "
1123                                 "name = %s;", pid, ps->name);
1124                 return (0);
1125         }
1126
1127         cpu_user_counter   = atoll (fields[11]);
1128         cpu_system_counter = atoll (fields[12]);
1129         vmem_size          = atoll (fields[20]);
1130         vmem_rss           = atoll (fields[21]);
1131         ps->vmem_minflt_counter = atol (fields[7]);
1132         ps->vmem_majflt_counter = atol (fields[9]);
1133
1134         {
1135                 unsigned long long stack_start = atoll (fields[25]);
1136                 unsigned long long stack_ptr   = atoll (fields[26]);
1137
1138                 stack_size = (stack_start > stack_ptr)
1139                         ? stack_start - stack_ptr
1140                         : stack_ptr - stack_start;
1141         }
1142
1143         /* Convert jiffies to useconds */
1144         cpu_user_counter   = cpu_user_counter   * 1000000 / CONFIG_HZ;
1145         cpu_system_counter = cpu_system_counter * 1000000 / CONFIG_HZ;
1146         vmem_rss = vmem_rss * pagesize_g;
1147
1148         ps->cpu_user_counter = cpu_user_counter;
1149         ps->cpu_system_counter = cpu_system_counter;
1150         ps->vmem_size = (unsigned long) vmem_size;
1151         ps->vmem_rss = (unsigned long) vmem_rss;
1152         ps->stack_size = (unsigned long) stack_size;
1153
1154         if ( (ps_read_io (pid, ps)) == NULL)
1155         {
1156                 /* no io data */
1157                 ps->io_rchar = -1;
1158                 ps->io_wchar = -1;
1159                 ps->io_syscr = -1;
1160                 ps->io_syscw = -1;
1161
1162                 DEBUG("ps_read_process: not get io data for pid %li", pid);
1163         }
1164
1165         if ( report_ctx_switch )
1166         {
1167                 if ( (ps_read_tasks_status(pid, ps)) == NULL)
1168                 {
1169                         ps->cswitch_vol = -1;
1170                         ps->cswitch_invol = -1;
1171
1172                         DEBUG("ps_read_tasks_status: not get context "
1173                                         "switch data for pid %li", pid);
1174                 }
1175         }
1176
1177         /* success */
1178         return (0);
1179 } /* int ps_read_process (...) */
1180
1181 static char *ps_get_cmdline (long pid, char *name, char *buf, size_t buf_len)
1182 {
1183         char  *buf_ptr;
1184         size_t len;
1185
1186         char file[PATH_MAX];
1187         int  fd;
1188
1189         size_t n;
1190
1191         if ((pid < 1) || (NULL == buf) || (buf_len < 2))
1192                 return NULL;
1193
1194         ssnprintf (file, sizeof (file), "/proc/%li/cmdline", pid);
1195
1196         errno = 0;
1197         fd = open (file, O_RDONLY);
1198         if (fd < 0) {
1199                 char errbuf[4096];
1200                 /* ENOENT means the process exited while we were handling it.
1201                  * Don't complain about this, it only fills the logs. */
1202                 if (errno != ENOENT)
1203                         WARNING ("processes plugin: Failed to open `%s': %s.", file,
1204                                         sstrerror (errno, errbuf, sizeof (errbuf)));
1205                 return NULL;
1206         }
1207
1208         buf_ptr = buf;
1209         len     = buf_len;
1210
1211         n = 0;
1212
1213         while (42) {
1214                 ssize_t status;
1215
1216                 status = read (fd, (void *)buf_ptr, len);
1217
1218                 if (status < 0) {
1219                         char errbuf[1024];
1220
1221                         if ((EAGAIN == errno) || (EINTR == errno))
1222                                 continue;
1223
1224                         WARNING ("processes plugin: Failed to read from `%s': %s.", file,
1225                                         sstrerror (errno, errbuf, sizeof (errbuf)));
1226                         close (fd);
1227                         return NULL;
1228                 }
1229
1230                 n += status;
1231
1232                 if (status == 0)
1233                         break;
1234
1235                 buf_ptr += status;
1236                 len     -= status;
1237
1238                 if (len == 0)
1239                         break;
1240         }
1241
1242         close (fd);
1243
1244         if (0 == n) {
1245                 /* cmdline not available; e.g. kernel thread, zombie */
1246                 if (NULL == name)
1247                         return NULL;
1248
1249                 ssnprintf (buf, buf_len, "[%s]", name);
1250                 return buf;
1251         }
1252
1253         assert (n <= buf_len);
1254
1255         if (n == buf_len)
1256                 --n;
1257         buf[n] = '\0';
1258
1259         --n;
1260         /* remove trailing whitespace */
1261         while ((n > 0) && (isspace (buf[n]) || ('\0' == buf[n]))) {
1262                 buf[n] = '\0';
1263                 --n;
1264         }
1265
1266         /* arguments are separated by '\0' in /proc/<pid>/cmdline */
1267         while (n > 0) {
1268                 if ('\0' == buf[n])
1269                         buf[n] = ' ';
1270                 --n;
1271         }
1272         return buf;
1273 } /* char *ps_get_cmdline (...) */
1274
1275 static int read_fork_rate (void)
1276 {
1277         FILE *proc_stat;
1278         char buffer[1024];
1279         value_t value;
1280         _Bool value_valid = 0;
1281
1282         proc_stat = fopen ("/proc/stat", "r");
1283         if (proc_stat == NULL)
1284         {
1285                 char errbuf[1024];
1286                 ERROR ("processes plugin: fopen (/proc/stat) failed: %s",
1287                                 sstrerror (errno, errbuf, sizeof (errbuf)));
1288                 return (-1);
1289         }
1290
1291         while (fgets (buffer, sizeof (buffer), proc_stat) != NULL)
1292         {
1293                 int status;
1294                 char *fields[3];
1295                 int fields_num;
1296
1297                 fields_num = strsplit (buffer, fields,
1298                                 STATIC_ARRAY_SIZE (fields));
1299                 if (fields_num != 2)
1300                         continue;
1301
1302                 if (strcmp ("processes", fields[0]) != 0)
1303                         continue;
1304
1305                 status = parse_value (fields[1], &value, DS_TYPE_DERIVE);
1306                 if (status == 0)
1307                         value_valid = 1;
1308
1309                 break;
1310         }
1311         fclose(proc_stat);
1312
1313         if (!value_valid)
1314                 return (-1);
1315
1316         ps_submit_fork_rate (value.derive);
1317         return (0);
1318 }
1319 #endif /*KERNEL_LINUX */
1320
1321 #if KERNEL_SOLARIS
1322 static char *ps_get_cmdline (long pid, char *name __attribute__((unused)), /* {{{ */
1323     char *buffer, size_t buffer_size)
1324 {
1325         char path[PATH_MAX];
1326         psinfo_t info;
1327         ssize_t status;
1328
1329         snprintf(path, sizeof (path), "/proc/%li/psinfo", pid);
1330
1331         status = read_file_contents (path, (void *) &info, sizeof (info));
1332         if ((status < 0) || (((size_t) status) != sizeof (info)))
1333         {
1334                 ERROR ("processes plugin: Unexpected return value "
1335                                 "while reading \"%s\": "
1336                                 "Returned %zd but expected %zu.",
1337                                 path, status, buffer_size);
1338                 return (NULL);
1339         }
1340
1341         info.pr_psargs[sizeof (info.pr_psargs) - 1] = 0;
1342         sstrncpy (buffer, info.pr_psargs, buffer_size);
1343
1344         return (buffer);
1345 } /* }}} int ps_get_cmdline */
1346
1347 /*
1348  * Reads process information on the Solaris OS. The information comes mainly from
1349  * /proc/PID/status, /proc/PID/psinfo and /proc/PID/usage
1350  * The values for input and ouput chars are calculated "by hand"
1351  * Added a few "solaris" specific process states as well
1352  */
1353 static int ps_read_process(long pid, procstat_t *ps, char *state)
1354 {
1355         char filename[64];
1356         char f_psinfo[64], f_usage[64];
1357         char *buffer;
1358
1359         pstatus_t *myStatus;
1360         psinfo_t *myInfo;
1361         prusage_t *myUsage;
1362
1363         snprintf(filename, sizeof (filename), "/proc/%li/status", pid);
1364         snprintf(f_psinfo, sizeof (f_psinfo), "/proc/%li/psinfo", pid);
1365         snprintf(f_usage, sizeof (f_usage), "/proc/%li/usage", pid);
1366
1367
1368         buffer = calloc(1, sizeof (pstatus_t));
1369         read_file_contents(filename, buffer, sizeof (pstatus_t));
1370         myStatus = (pstatus_t *) buffer;
1371
1372         buffer = calloc(1, sizeof (psinfo_t));
1373         read_file_contents(f_psinfo, buffer, sizeof (psinfo_t));
1374         myInfo = (psinfo_t *) buffer;
1375
1376         buffer = calloc(1, sizeof (prusage_t));
1377         read_file_contents(f_usage, buffer, sizeof (prusage_t));
1378         myUsage = (prusage_t *) buffer;
1379
1380         sstrncpy(ps->name, myInfo->pr_fname, sizeof (myInfo->pr_fname));
1381         ps->num_lwp = myStatus->pr_nlwp;
1382         if (myInfo->pr_wstat != 0) {
1383                 ps->num_proc = 0;
1384                 ps->num_lwp = 0;
1385                 *state = (char) 'Z';
1386
1387                 sfree(myStatus);
1388                 sfree(myInfo);
1389                 sfree(myUsage);
1390                 return (0);
1391         } else {
1392                 ps->num_proc = 1;
1393                 ps->num_lwp = myInfo->pr_nlwp;
1394         }
1395
1396         /*
1397          * Convert system time and user time from nanoseconds to microseconds
1398          * for compatibility with the linux module
1399          */
1400         ps->cpu_system_counter = myStatus -> pr_stime.tv_nsec / 1000;
1401         ps->cpu_user_counter = myStatus -> pr_utime.tv_nsec / 1000;
1402
1403         /*
1404          * Convert rssize from KB to bytes to be consistent w/ the linux module
1405          */
1406         ps->vmem_rss = myInfo->pr_rssize * 1024;
1407         ps->vmem_size = myInfo->pr_size * 1024;
1408         ps->vmem_minflt_counter = myUsage->pr_minf;
1409         ps->vmem_majflt_counter = myUsage->pr_majf;
1410
1411         /*
1412          * TODO: Data and code segment calculations for Solaris
1413          */
1414
1415         ps->vmem_data = -1;
1416         ps->vmem_code = -1;
1417         ps->stack_size = myStatus->pr_stksize;
1418
1419         /*
1420          * Calculating input/ouput chars
1421          * Formula used is total chars / total blocks => chars/block
1422          * then convert input/output blocks to chars
1423          */
1424         ulong_t tot_chars = myUsage->pr_ioch;
1425         ulong_t tot_blocks = myUsage->pr_inblk + myUsage->pr_oublk;
1426         ulong_t chars_per_block = 1;
1427         if (tot_blocks != 0)
1428                 chars_per_block = tot_chars / tot_blocks;
1429         ps->io_rchar = myUsage->pr_inblk * chars_per_block;
1430         ps->io_wchar = myUsage->pr_oublk * chars_per_block;
1431         ps->io_syscr = myUsage->pr_sysc;
1432         ps->io_syscw = myUsage->pr_sysc;
1433
1434         /*
1435          * TODO: context switch counters for Solaris
1436    */
1437         ps->cswitch_vol   = -1;
1438         ps->cswitch_invol = -1;
1439
1440
1441         /*
1442          * TODO: Find way of setting BLOCKED and PAGING status
1443          */
1444
1445         *state = (char) 'R';
1446         if (myStatus->pr_flags & PR_ASLEEP)
1447                 *state = (char) 'S';
1448         else if (myStatus->pr_flags & PR_STOPPED)
1449                 *state = (char) 'T';
1450         else if (myStatus->pr_flags & PR_DETACH)
1451                 *state = (char) 'E';
1452         else if (myStatus->pr_flags & PR_DAEMON)
1453                 *state = (char) 'A';
1454         else if (myStatus->pr_flags & PR_ISSYS)
1455                 *state = (char) 'Y';
1456         else if (myStatus->pr_flags & PR_ORPHAN)
1457                 *state = (char) 'O';
1458
1459         sfree(myStatus);
1460         sfree(myInfo);
1461         sfree(myUsage);
1462
1463         return (0);
1464 }
1465
1466 /*
1467  * Reads the number of threads created since the last reboot. On Solaris these
1468  * are retrieved from kstat (module cpu, name sys, class misc, stat nthreads).
1469  * The result is the sum for all the threads created on each cpu
1470  */
1471 static int read_fork_rate (void)
1472 {
1473         extern kstat_ctl_t *kc;
1474         kstat_t *ksp_chain = NULL;
1475         derive_t result = 0;
1476
1477         if (kc == NULL)
1478                 return (-1);
1479
1480         for (ksp_chain = kc->kc_chain;
1481                         ksp_chain != NULL;
1482                         ksp_chain = ksp_chain->ks_next)
1483         {
1484                 if ((strcmp (ksp_chain->ks_module, "cpu") == 0)
1485                                 && (strcmp (ksp_chain->ks_name, "sys") == 0)
1486                                 && (strcmp (ksp_chain->ks_class, "misc") == 0))
1487                 {
1488                         long long tmp;
1489
1490                         kstat_read (kc, ksp_chain, NULL);
1491
1492                         tmp = get_kstat_value(ksp_chain, "nthreads");
1493                         if (tmp != -1LL)
1494                                 result += tmp;
1495                 }
1496         }
1497
1498         ps_submit_fork_rate (result);
1499         return (0);
1500 }
1501 #endif /* KERNEL_SOLARIS */
1502
1503 #if HAVE_THREAD_INFO
1504 static int mach_get_task_name (task_t t, int *pid, char *name, size_t name_max_len)
1505 {
1506         int mib[4];
1507
1508         struct kinfo_proc kp;
1509         size_t            kp_size;
1510
1511         mib[0] = CTL_KERN;
1512         mib[1] = KERN_PROC;
1513         mib[2] = KERN_PROC_PID;
1514
1515         if (pid_for_task (t, pid) != KERN_SUCCESS)
1516                 return (-1);
1517         mib[3] = *pid;
1518
1519         kp_size = sizeof (kp);
1520         if (sysctl (mib, 4, &kp, &kp_size, NULL, 0) != 0)
1521                 return (-1);
1522
1523         if (name_max_len > (MAXCOMLEN + 1))
1524                 name_max_len = MAXCOMLEN + 1;
1525
1526         strncpy (name, kp.kp_proc.p_comm, name_max_len - 1);
1527         name[name_max_len - 1] = '\0';
1528
1529         DEBUG ("pid = %i; name = %s;", *pid, name);
1530
1531         /* We don't do the special handling for `p_comm == "LaunchCFMApp"' as
1532          * `top' does it, because it is a lot of work and only used when
1533          * debugging. -octo */
1534
1535         return (0);
1536 }
1537 #endif /* HAVE_THREAD_INFO */
1538 /* ------- end of additional functions for KERNEL_LINUX/HAVE_THREAD_INFO ------- */
1539
1540 /* do actual readings from kernel */
1541 static int ps_read (void)
1542 {
1543 #if HAVE_THREAD_INFO
1544         kern_return_t            status;
1545
1546         int                      pset;
1547         processor_set_t          port_pset_priv;
1548
1549         int                      task;
1550         task_array_t             task_list;
1551         mach_msg_type_number_t   task_list_len;
1552
1553         int                      task_pid;
1554         char                     task_name[MAXCOMLEN + 1];
1555
1556         int                      thread;
1557         thread_act_array_t       thread_list;
1558         mach_msg_type_number_t   thread_list_len;
1559         thread_basic_info_data_t thread_data;
1560         mach_msg_type_number_t   thread_data_len;
1561
1562         int running  = 0;
1563         int sleeping = 0;
1564         int zombies  = 0;
1565         int stopped  = 0;
1566         int blocked  = 0;
1567
1568         procstat_t *ps;
1569         procstat_entry_t pse;
1570
1571         ps_list_reset ();
1572
1573         /*
1574          * The Mach-concept is a little different from the traditional UNIX
1575          * concept: All the work is done in threads. Threads are contained in
1576          * `tasks'. Therefore, `task status' doesn't make much sense, since
1577          * it's actually a `thread status'.
1578          * Tasks are assigned to sets of processors, so that's where you go to
1579          * get a list.
1580          */
1581         for (pset = 0; pset < pset_list_len; pset++)
1582         {
1583                 if ((status = host_processor_set_priv (port_host_self,
1584                                                 pset_list[pset],
1585                                                 &port_pset_priv)) != KERN_SUCCESS)
1586                 {
1587                         ERROR ("host_processor_set_priv failed: %s\n",
1588                                         mach_error_string (status));
1589                         continue;
1590                 }
1591
1592                 if ((status = processor_set_tasks (port_pset_priv,
1593                                                 &task_list,
1594                                                 &task_list_len)) != KERN_SUCCESS)
1595                 {
1596                         ERROR ("processor_set_tasks failed: %s\n",
1597                                         mach_error_string (status));
1598                         mach_port_deallocate (port_task_self, port_pset_priv);
1599                         continue;
1600                 }
1601
1602                 for (task = 0; task < task_list_len; task++)
1603                 {
1604                         ps = NULL;
1605                         if (mach_get_task_name (task_list[task],
1606                                                 &task_pid,
1607                                                 task_name, PROCSTAT_NAME_LEN) == 0)
1608                         {
1609                                 /* search for at least one match */
1610                                 for (ps = list_head_g; ps != NULL; ps = ps->next)
1611                                         /* FIXME: cmdline should be here instead of NULL */
1612                                         if (ps_list_match (task_name, NULL, ps) == 1)
1613                                                 break;
1614                         }
1615
1616                         /* Collect more detailed statistics for this process */
1617                         if (ps != NULL)
1618                         {
1619                                 task_basic_info_data_t        task_basic_info;
1620                                 mach_msg_type_number_t        task_basic_info_len;
1621                                 task_events_info_data_t       task_events_info;
1622                                 mach_msg_type_number_t        task_events_info_len;
1623                                 task_absolutetime_info_data_t task_absolutetime_info;
1624                                 mach_msg_type_number_t        task_absolutetime_info_len;
1625
1626                                 memset (&pse, '\0', sizeof (pse));
1627                                 pse.id = task_pid;
1628
1629                                 task_basic_info_len = TASK_BASIC_INFO_COUNT;
1630                                 status = task_info (task_list[task],
1631                                                 TASK_BASIC_INFO,
1632                                                 (task_info_t) &task_basic_info,
1633                                                 &task_basic_info_len);
1634                                 if (status != KERN_SUCCESS)
1635                                 {
1636                                         ERROR ("task_info failed: %s",
1637                                                         mach_error_string (status));
1638                                         continue; /* with next thread_list */
1639                                 }
1640
1641                                 task_events_info_len = TASK_EVENTS_INFO_COUNT;
1642                                 status = task_info (task_list[task],
1643                                                 TASK_EVENTS_INFO,
1644                                                 (task_info_t) &task_events_info,
1645                                                 &task_events_info_len);
1646                                 if (status != KERN_SUCCESS)
1647                                 {
1648                                         ERROR ("task_info failed: %s",
1649                                                         mach_error_string (status));
1650                                         continue; /* with next thread_list */
1651                                 }
1652
1653                                 task_absolutetime_info_len = TASK_ABSOLUTETIME_INFO_COUNT;
1654                                 status = task_info (task_list[task],
1655                                                 TASK_ABSOLUTETIME_INFO,
1656                                                 (task_info_t) &task_absolutetime_info,
1657                                                 &task_absolutetime_info_len);
1658                                 if (status != KERN_SUCCESS)
1659                                 {
1660                                         ERROR ("task_info failed: %s",
1661                                                         mach_error_string (status));
1662                                         continue; /* with next thread_list */
1663                                 }
1664
1665                                 pse.num_proc++;
1666                                 pse.vmem_size = task_basic_info.virtual_size;
1667                                 pse.vmem_rss = task_basic_info.resident_size;
1668                                 /* Does not seem to be easily exposed */
1669                                 pse.vmem_data = 0;
1670                                 pse.vmem_code = 0;
1671
1672                                 pse.vmem_minflt_counter = task_events_info.cow_faults;
1673                                 pse.vmem_majflt_counter = task_events_info.faults;
1674
1675                                 pse.cpu_user_counter = task_absolutetime_info.total_user;
1676                                 pse.cpu_system_counter = task_absolutetime_info.total_system;
1677
1678                                 /* context switch counters not implemented */
1679                                 pse.cswitch_vol   = -1;
1680                                 pse.cswitch_invol = -1;
1681                         }
1682
1683                         status = task_threads (task_list[task], &thread_list,
1684                                         &thread_list_len);
1685                         if (status != KERN_SUCCESS)
1686                         {
1687                                 /* Apple's `top' treats this case a zombie. It
1688                                  * makes sense to some extend: A `zombie'
1689                                  * thread is nonsense, since the task/process
1690                                  * is dead. */
1691                                 zombies++;
1692                                 DEBUG ("task_threads failed: %s",
1693                                                 mach_error_string (status));
1694                                 if (task_list[task] != port_task_self)
1695                                         mach_port_deallocate (port_task_self,
1696                                                         task_list[task]);
1697                                 continue; /* with next task_list */
1698                         }
1699
1700                         for (thread = 0; thread < thread_list_len; thread++)
1701                         {
1702                                 thread_data_len = THREAD_BASIC_INFO_COUNT;
1703                                 status = thread_info (thread_list[thread],
1704                                                 THREAD_BASIC_INFO,
1705                                                 (thread_info_t) &thread_data,
1706                                                 &thread_data_len);
1707                                 if (status != KERN_SUCCESS)
1708                                 {
1709                                         ERROR ("thread_info failed: %s",
1710                                                         mach_error_string (status));
1711                                         if (task_list[task] != port_task_self)
1712                                                 mach_port_deallocate (port_task_self,
1713                                                                 thread_list[thread]);
1714                                         continue; /* with next thread_list */
1715                                 }
1716
1717                                 if (ps != NULL)
1718                                         pse.num_lwp++;
1719
1720                                 switch (thread_data.run_state)
1721                                 {
1722                                         case TH_STATE_RUNNING:
1723                                                 running++;
1724                                                 break;
1725                                         case TH_STATE_STOPPED:
1726                                         /* What exactly is `halted'? */
1727                                         case TH_STATE_HALTED:
1728                                                 stopped++;
1729                                                 break;
1730                                         case TH_STATE_WAITING:
1731                                                 sleeping++;
1732                                                 break;
1733                                         case TH_STATE_UNINTERRUPTIBLE:
1734                                                 blocked++;
1735                                                 break;
1736                                         /* There is no `zombie' case here,
1737                                          * since there are no zombie-threads.
1738                                          * There's only zombie tasks, which are
1739                                          * handled above. */
1740                                         default:
1741                                                 WARNING ("Unknown thread status: %i",
1742                                                                 thread_data.run_state);
1743                                                 break;
1744                                 } /* switch (thread_data.run_state) */
1745
1746                                 if (task_list[task] != port_task_self)
1747                                 {
1748                                         status = mach_port_deallocate (port_task_self,
1749                                                         thread_list[thread]);
1750                                         if (status != KERN_SUCCESS)
1751                                                 ERROR ("mach_port_deallocate failed: %s",
1752                                                                 mach_error_string (status));
1753                                 }
1754                         } /* for (thread_list) */
1755
1756                         if ((status = vm_deallocate (port_task_self,
1757                                                         (vm_address_t) thread_list,
1758                                                         thread_list_len * sizeof (thread_act_t)))
1759                                         != KERN_SUCCESS)
1760                         {
1761                                 ERROR ("vm_deallocate failed: %s",
1762                                                 mach_error_string (status));
1763                         }
1764                         thread_list = NULL;
1765                         thread_list_len = 0;
1766
1767                         /* Only deallocate the task port, if it isn't our own.
1768                          * Don't know what would happen in that case, but this
1769                          * is what Apple's top does.. ;) */
1770                         if (task_list[task] != port_task_self)
1771                         {
1772                                 status = mach_port_deallocate (port_task_self,
1773                                                 task_list[task]);
1774                                 if (status != KERN_SUCCESS)
1775                                         ERROR ("mach_port_deallocate failed: %s",
1776                                                         mach_error_string (status));
1777                         }
1778
1779                         if (ps != NULL)
1780                                 /* FIXME: cmdline should be here instead of NULL */
1781                                 ps_list_add (task_name, NULL, &pse);
1782                 } /* for (task_list) */
1783
1784                 if ((status = vm_deallocate (port_task_self,
1785                                 (vm_address_t) task_list,
1786                                 task_list_len * sizeof (task_t))) != KERN_SUCCESS)
1787                 {
1788                         ERROR ("vm_deallocate failed: %s",
1789                                         mach_error_string (status));
1790                 }
1791                 task_list = NULL;
1792                 task_list_len = 0;
1793
1794                 if ((status = mach_port_deallocate (port_task_self, port_pset_priv))
1795                                 != KERN_SUCCESS)
1796                 {
1797                         ERROR ("mach_port_deallocate failed: %s",
1798                                         mach_error_string (status));
1799                 }
1800         } /* for (pset_list) */
1801
1802         ps_submit_state ("running", running);
1803         ps_submit_state ("sleeping", sleeping);
1804         ps_submit_state ("zombies", zombies);
1805         ps_submit_state ("stopped", stopped);
1806         ps_submit_state ("blocked", blocked);
1807
1808         for (ps = list_head_g; ps != NULL; ps = ps->next)
1809                 ps_submit_proc_list (ps);
1810 /* #endif HAVE_THREAD_INFO */
1811
1812 #elif KERNEL_LINUX
1813         int running  = 0;
1814         int sleeping = 0;
1815         int zombies  = 0;
1816         int stopped  = 0;
1817         int paging   = 0;
1818         int blocked  = 0;
1819
1820         struct dirent *ent;
1821         DIR           *proc;
1822         long           pid;
1823
1824         char cmdline[CMDLINE_BUFFER_SIZE];
1825
1826         int        status;
1827         procstat_t ps;
1828         procstat_entry_t pse;
1829         char       state;
1830
1831         procstat_t *ps_ptr;
1832
1833         running = sleeping = zombies = stopped = paging = blocked = 0;
1834         ps_list_reset ();
1835
1836         if ((proc = opendir ("/proc")) == NULL)
1837         {
1838                 char errbuf[1024];
1839                 ERROR ("Cannot open `/proc': %s",
1840                                 sstrerror (errno, errbuf, sizeof (errbuf)));
1841                 return (-1);
1842         }
1843
1844         while ((ent = readdir (proc)) != NULL)
1845         {
1846                 if (!isdigit (ent->d_name[0]))
1847                         continue;
1848
1849                 if ((pid = atol (ent->d_name)) < 1)
1850                         continue;
1851
1852                 status = ps_read_process (pid, &ps, &state);
1853                 if (status != 0)
1854                 {
1855                         DEBUG ("ps_read_process failed: %i", status);
1856                         continue;
1857                 }
1858
1859                 memset (&pse, 0, sizeof (pse));
1860                 pse.id       = pid;
1861                 pse.age      = 0;
1862
1863                 pse.num_proc   = ps.num_proc;
1864                 pse.num_lwp    = ps.num_lwp;
1865                 pse.vmem_size  = ps.vmem_size;
1866                 pse.vmem_rss   = ps.vmem_rss;
1867                 pse.vmem_data  = ps.vmem_data;
1868                 pse.vmem_code  = ps.vmem_code;
1869                 pse.stack_size = ps.stack_size;
1870
1871                 pse.vmem_minflt = 0;
1872                 pse.vmem_minflt_counter = ps.vmem_minflt_counter;
1873                 pse.vmem_majflt = 0;
1874                 pse.vmem_majflt_counter = ps.vmem_majflt_counter;
1875
1876                 pse.cpu_user = 0;
1877                 pse.cpu_user_counter = ps.cpu_user_counter;
1878                 pse.cpu_system = 0;
1879                 pse.cpu_system_counter = ps.cpu_system_counter;
1880
1881                 pse.io_rchar = ps.io_rchar;
1882                 pse.io_wchar = ps.io_wchar;
1883                 pse.io_syscr = ps.io_syscr;
1884                 pse.io_syscw = ps.io_syscw;
1885
1886                 pse.cswitch_vol = ps.cswitch_vol;
1887                 pse.cswitch_invol = ps.cswitch_invol;
1888
1889                 switch (state)
1890                 {
1891                         case 'R': running++;  break;
1892                         case 'S': sleeping++; break;
1893                         case 'D': blocked++;  break;
1894                         case 'Z': zombies++;  break;
1895                         case 'T': stopped++;  break;
1896                         case 'W': paging++;   break;
1897                 }
1898
1899                 ps_list_add (ps.name,
1900                                 ps_get_cmdline (pid, ps.name, cmdline, sizeof (cmdline)),
1901                                 &pse);
1902         }
1903
1904         closedir (proc);
1905
1906         ps_submit_state ("running",  running);
1907         ps_submit_state ("sleeping", sleeping);
1908         ps_submit_state ("zombies",  zombies);
1909         ps_submit_state ("stopped",  stopped);
1910         ps_submit_state ("paging",   paging);
1911         ps_submit_state ("blocked",  blocked);
1912
1913         for (ps_ptr = list_head_g; ps_ptr != NULL; ps_ptr = ps_ptr->next)
1914                 ps_submit_proc_list (ps_ptr);
1915
1916         read_fork_rate();
1917 /* #endif KERNEL_LINUX */
1918
1919 #elif HAVE_LIBKVM_GETPROCS && HAVE_STRUCT_KINFO_PROC_FREEBSD
1920         int running  = 0;
1921         int sleeping = 0;
1922         int zombies  = 0;
1923         int stopped  = 0;
1924         int blocked  = 0;
1925         int idle     = 0;
1926         int wait     = 0;
1927
1928         kvm_t *kd;
1929         char errbuf[_POSIX2_LINE_MAX];
1930         struct kinfo_proc *procs;          /* array of processes */
1931         struct kinfo_proc *proc_ptr = NULL;
1932         int count;                         /* returns number of processes */
1933         int i;
1934
1935         procstat_t *ps_ptr;
1936         procstat_entry_t pse;
1937
1938         ps_list_reset ();
1939
1940         /* Open the kvm interface, get a descriptor */
1941         kd = kvm_openfiles (NULL, "/dev/null", NULL, 0, errbuf);
1942         if (kd == NULL)
1943         {
1944                 ERROR ("processes plugin: Cannot open kvm interface: %s",
1945                                 errbuf);
1946                 return (0);
1947         }
1948
1949         /* Get the list of processes. */
1950         procs = kvm_getprocs(kd, KERN_PROC_ALL, 0, &count);
1951         if (procs == NULL)
1952         {
1953                 ERROR ("processes plugin: Cannot get kvm processes list: %s",
1954                                 kvm_geterr(kd));
1955                 kvm_close (kd);
1956                 return (0);
1957         }
1958
1959         /* Iterate through the processes in kinfo_proc */
1960         for (i = 0; i < count; i++)
1961         {
1962                 /* Create only one process list entry per _process_, i.e.
1963                  * filter out threads (duplicate PID entries). */
1964                 if ((proc_ptr == NULL) || (proc_ptr->ki_pid != procs[i].ki_pid))
1965                 {
1966                         char cmdline[CMDLINE_BUFFER_SIZE] = "";
1967                         _Bool have_cmdline = 0;
1968
1969                         proc_ptr = &(procs[i]);
1970                         /* Don't probe system processes and processes without arguments */
1971                         if (((procs[i].ki_flag & P_SYSTEM) == 0)
1972                                         && (procs[i].ki_args != NULL))
1973                         {
1974                                 char **argv;
1975                                 int argc;
1976                                 int status;
1977
1978                                 /* retrieve the arguments */
1979                                 argv = kvm_getargv (kd, proc_ptr, /* nchr = */ 0);
1980                                 argc = 0;
1981                                 if ((argv != NULL) && (argv[0] != NULL))
1982                                 {
1983                                         while (argv[argc] != NULL)
1984                                                 argc++;
1985
1986                                         status = strjoin (cmdline, sizeof (cmdline), argv, argc, " ");
1987                                         if (status < 0)
1988                                                 WARNING ("processes plugin: Command line did not fit into buffer.");
1989                                         else
1990                                                 have_cmdline = 1;
1991                                 }
1992                         } /* if (process has argument list) */
1993
1994                         pse.id       = procs[i].ki_pid;
1995                         pse.age      = 0;
1996
1997                         pse.num_proc = 1;
1998                         pse.num_lwp  = procs[i].ki_numthreads;
1999
2000                         pse.vmem_size = procs[i].ki_size;
2001                         pse.vmem_rss = procs[i].ki_rssize * pagesize;
2002                         pse.vmem_data = procs[i].ki_dsize * pagesize;
2003                         pse.vmem_code = procs[i].ki_tsize * pagesize;
2004                         pse.stack_size = procs[i].ki_ssize * pagesize;
2005                         pse.vmem_minflt = 0;
2006                         pse.vmem_minflt_counter = procs[i].ki_rusage.ru_minflt;
2007                         pse.vmem_majflt = 0;
2008                         pse.vmem_majflt_counter = procs[i].ki_rusage.ru_majflt;
2009
2010                         pse.cpu_user = 0;
2011                         pse.cpu_system = 0;
2012                         pse.cpu_user_counter = 0;
2013                         pse.cpu_system_counter = 0;
2014                         /*
2015                          * The u-area might be swapped out, and we can't get
2016                          * at it because we have a crashdump and no swap.
2017                          * If it's here fill in these fields, otherwise, just
2018                          * leave them 0.
2019                          */
2020                         if (procs[i].ki_flag & P_INMEM)
2021                         {
2022                                 pse.cpu_user_counter = procs[i].ki_rusage.ru_utime.tv_usec
2023                                         + (1000000lu * procs[i].ki_rusage.ru_utime.tv_sec);
2024                                 pse.cpu_system_counter = procs[i].ki_rusage.ru_stime.tv_usec
2025                                         + (1000000lu * procs[i].ki_rusage.ru_stime.tv_sec);
2026                         }
2027
2028                         /* no I/O data */
2029                         pse.io_rchar = -1;
2030                         pse.io_wchar = -1;
2031                         pse.io_syscr = -1;
2032                         pse.io_syscw = -1;
2033
2034                         /* context switch counters not implemented */
2035                         pse.cswitch_vol   = -1;
2036                         pse.cswitch_invol = -1;
2037
2038                         ps_list_add (procs[i].ki_comm, have_cmdline ? cmdline : NULL, &pse);
2039
2040                         switch (procs[i].ki_stat)
2041                         {
2042                                 case SSTOP:     stopped++;      break;
2043                                 case SSLEEP:    sleeping++;     break;
2044                                 case SRUN:      running++;      break;
2045                                 case SIDL:      idle++;         break;
2046                                 case SWAIT:     wait++;         break;
2047                                 case SLOCK:     blocked++;      break;
2048                                 case SZOMB:     zombies++;      break;
2049                         }
2050                 } /* if ((proc_ptr == NULL) || (proc_ptr->ki_pid != procs[i].ki_pid)) */
2051         }
2052
2053         kvm_close(kd);
2054
2055         ps_submit_state ("running",  running);
2056         ps_submit_state ("sleeping", sleeping);
2057         ps_submit_state ("zombies",  zombies);
2058         ps_submit_state ("stopped",  stopped);
2059         ps_submit_state ("blocked",  blocked);
2060         ps_submit_state ("idle",     idle);
2061         ps_submit_state ("wait",     wait);
2062
2063         for (ps_ptr = list_head_g; ps_ptr != NULL; ps_ptr = ps_ptr->next)
2064                 ps_submit_proc_list (ps_ptr);
2065 /* #endif HAVE_LIBKVM_GETPROCS && HAVE_STRUCT_KINFO_PROC_FREEBSD */
2066
2067 #elif HAVE_LIBKVM_GETPROCS && HAVE_STRUCT_KINFO_PROC_OPENBSD
2068         int running  = 0;
2069         int sleeping = 0;
2070         int zombies  = 0;
2071         int stopped  = 0;
2072         int onproc   = 0;
2073         int idle     = 0;
2074         int dead     = 0;
2075
2076         kvm_t *kd;
2077         char errbuf[1024];
2078         struct kinfo_proc *procs;          /* array of processes */
2079         struct kinfo_proc *proc_ptr = NULL;
2080         int count;                         /* returns number of processes */
2081         int i;
2082
2083         procstat_t *ps_ptr;
2084         procstat_entry_t pse;
2085
2086         ps_list_reset ();
2087
2088         /* Open the kvm interface, get a descriptor */
2089         kd = kvm_open (NULL, NULL, NULL, 0, errbuf);
2090         if (kd == NULL)
2091         {
2092                 ERROR ("processes plugin: Cannot open kvm interface: %s",
2093                                 errbuf);
2094                 return (0);
2095         }
2096
2097         /* Get the list of processes. */
2098         procs = kvm_getprocs(kd, KERN_PROC_ALL, 0, sizeof(struct kinfo_proc), &count);
2099         if (procs == NULL)
2100         {
2101                 ERROR ("processes plugin: Cannot get kvm processes list: %s",
2102                                 kvm_geterr(kd));
2103                 kvm_close (kd);
2104                 return (0);
2105         }
2106
2107         /* Iterate through the processes in kinfo_proc */
2108         for (i = 0; i < count; i++)
2109         {
2110                 /* Create only one process list entry per _process_, i.e.
2111                  * filter out threads (duplicate PID entries). */
2112                 if ((proc_ptr == NULL) || (proc_ptr->p_pid != procs[i].p_pid))
2113                 {
2114                         char cmdline[CMDLINE_BUFFER_SIZE] = "";
2115                         _Bool have_cmdline = 0;
2116
2117                         proc_ptr = &(procs[i]);
2118                         /* Don't probe zombie processes  */
2119                         if (!P_ZOMBIE(proc_ptr))
2120                         {
2121                                 char **argv;
2122                                 int argc;
2123                                 int status;
2124
2125                                 /* retrieve the arguments */
2126                                 argv = kvm_getargv (kd, proc_ptr, /* nchr = */ 0);
2127                                 argc = 0;
2128                                 if ((argv != NULL) && (argv[0] != NULL))
2129                                 {
2130                                         while (argv[argc] != NULL)
2131                                                 argc++;
2132
2133                                         status = strjoin (cmdline, sizeof (cmdline), argv, argc, " ");
2134                                         if (status < 0)
2135                                                 WARNING ("processes plugin: Command line did not fit into buffer.");
2136                                         else
2137                                                 have_cmdline = 1;
2138                                 }
2139                         } /* if (process has argument list) */
2140
2141                         memset (&pse, 0, sizeof (pse));
2142                         pse.id       = procs[i].p_pid;
2143                         pse.age      = 0;
2144
2145                         pse.num_proc = 1;
2146                         pse.num_lwp  = 1; /* XXX: accumulate p_tid values for a single p_pid ? */
2147
2148                         pse.vmem_rss = procs[i].p_vm_rssize * pagesize;
2149                         pse.vmem_data = procs[i].p_vm_dsize * pagesize;
2150                         pse.vmem_code = procs[i].p_vm_tsize * pagesize;
2151                         pse.stack_size = procs[i].p_vm_ssize * pagesize;
2152                         pse.vmem_size = pse.stack_size + pse.vmem_code + pse.vmem_data;
2153                         pse.vmem_minflt = 0;
2154                         pse.vmem_minflt_counter = procs[i].p_uru_minflt;
2155                         pse.vmem_majflt = 0;
2156                         pse.vmem_majflt_counter = procs[i].p_uru_majflt;
2157
2158                         pse.cpu_user = 0;
2159                         pse.cpu_system = 0;
2160                         pse.cpu_user_counter = procs[i].p_uutime_usec +
2161                                                 (1000000lu * procs[i].p_uutime_sec);
2162                         pse.cpu_system_counter = procs[i].p_ustime_usec +
2163                                                 (1000000lu * procs[i].p_ustime_sec);
2164
2165                         /* no I/O data */
2166                         pse.io_rchar = -1;
2167                         pse.io_wchar = -1;
2168                         pse.io_syscr = -1;
2169                         pse.io_syscw = -1;
2170
2171                         /* context switch counters not implemented */
2172                         pse.cswitch_vol   = -1;
2173                         pse.cswitch_invol = -1;
2174
2175                         ps_list_add (procs[i].p_comm, have_cmdline ? cmdline : NULL, &pse);
2176
2177                         switch (procs[i].p_stat)
2178                         {
2179                                 case SSTOP:     stopped++;      break;
2180                                 case SSLEEP:    sleeping++;     break;
2181                                 case SRUN:      running++;      break;
2182                                 case SIDL:      idle++;         break;
2183                                 case SONPROC:   onproc++;       break;
2184                                 case SDEAD:     dead++;         break;
2185                                 case SZOMB:     zombies++;      break;
2186                         }
2187                 } /* if ((proc_ptr == NULL) || (proc_ptr->p_pid != procs[i].p_pid)) */
2188         }
2189
2190         kvm_close(kd);
2191
2192         ps_submit_state ("running",  running);
2193         ps_submit_state ("sleeping", sleeping);
2194         ps_submit_state ("zombies",  zombies);
2195         ps_submit_state ("stopped",  stopped);
2196         ps_submit_state ("onproc",   onproc);
2197         ps_submit_state ("idle",     idle);
2198         ps_submit_state ("dead",     dead);
2199
2200         for (ps_ptr = list_head_g; ps_ptr != NULL; ps_ptr = ps_ptr->next)
2201                 ps_submit_proc_list (ps_ptr);
2202 /* #endif HAVE_LIBKVM_GETPROCS && HAVE_STRUCT_KINFO_PROC_OPENBSD */
2203
2204 #elif HAVE_PROCINFO_H
2205         /* AIX */
2206         int running  = 0;
2207         int sleeping = 0;
2208         int zombies  = 0;
2209         int stopped  = 0;
2210         int paging   = 0;
2211         int blocked  = 0;
2212
2213         pid_t pindex = 0;
2214         int nprocs;
2215
2216         procstat_t *ps;
2217         procstat_entry_t pse;
2218
2219         ps_list_reset ();
2220         while ((nprocs = getprocs64 (procentry, sizeof(struct procentry64),
2221                                         /* fdsinfo = */ NULL, sizeof(struct fdsinfo64),
2222                                         &pindex, MAXPROCENTRY)) > 0)
2223         {
2224                 int i;
2225
2226                 for (i = 0; i < nprocs; i++)
2227                 {
2228                         tid64_t thindex;
2229                         int nthreads;
2230                         char arglist[MAXARGLN+1];
2231                         char *cargs;
2232                         char *cmdline;
2233
2234                         if (procentry[i].pi_state == SNONE) continue;
2235                         /* if (procentry[i].pi_state == SZOMB)  FIXME */
2236
2237                         cmdline = procentry[i].pi_comm;
2238                         cargs = procentry[i].pi_comm;
2239                         if ( procentry[i].pi_flags & SKPROC )
2240                         {
2241                                 if (procentry[i].pi_pid == 0)
2242                                         cmdline = "swapper";
2243                                 cargs = cmdline;
2244                         }
2245                         else
2246                         {
2247                                 if (getargs(&procentry[i], sizeof(struct procentry64), arglist, MAXARGLN) >= 0)
2248                                 {
2249                                         int n;
2250
2251                                         n = -1;
2252                                         while (++n < MAXARGLN)
2253                                         {
2254                                                 if (arglist[n] == '\0')
2255                                                 {
2256                                                         if (arglist[n+1] == '\0')
2257                                                                 break;
2258                                                         arglist[n] = ' ';
2259                                                 }
2260                                         }
2261                                         cargs = arglist;
2262                                 }
2263                         }
2264
2265                         pse.id       = procentry[i].pi_pid;
2266                         pse.age      = 0;
2267                         pse.num_lwp  = procentry[i].pi_thcount;
2268                         pse.num_proc = 1;
2269
2270                         thindex=0;
2271                         while ((nthreads = getthrds64(procentry[i].pi_pid,
2272                                                         thrdentry, sizeof(struct thrdentry64),
2273                                                         &thindex, MAXTHRDENTRY)) > 0)
2274                         {
2275                                 int j;
2276
2277                                 for (j=0; j< nthreads; j++)
2278                                 {
2279                                         switch (thrdentry[j].ti_state)
2280                                         {
2281                                                 /* case TSNONE: break; */
2282                                                 case TSIDL:     blocked++;      break; /* FIXME is really blocked */
2283                                                 case TSRUN:     running++;      break;
2284                                                 case TSSLEEP:   sleeping++;     break;
2285                                                 case TSSWAP:    paging++;       break;
2286                                                 case TSSTOP:    stopped++;      break;
2287                                                 case TSZOMB:    zombies++;      break;
2288                                         }
2289                                 }
2290                                 if (nthreads < MAXTHRDENTRY)
2291                                         break;
2292                         }
2293
2294                         pse.cpu_user = 0;
2295                         /* tv_usec is nanosec ??? */
2296                         pse.cpu_user_counter = procentry[i].pi_ru.ru_utime.tv_sec * 1000000 +
2297                                 procentry[i].pi_ru.ru_utime.tv_usec / 1000;
2298
2299                         pse.cpu_system = 0;
2300                         /* tv_usec is nanosec ??? */
2301                         pse.cpu_system_counter = procentry[i].pi_ru.ru_stime.tv_sec * 1000000 +
2302                                 procentry[i].pi_ru.ru_stime.tv_usec / 1000;
2303
2304                         pse.vmem_minflt = 0;
2305                         pse.vmem_minflt_counter = procentry[i].pi_minflt;
2306                         pse.vmem_majflt = 0;
2307                         pse.vmem_majflt_counter = procentry[i].pi_majflt;
2308
2309                         pse.vmem_size = procentry[i].pi_tsize + procentry[i].pi_dvm * pagesize;
2310                         pse.vmem_rss = (procentry[i].pi_drss + procentry[i].pi_trss) * pagesize;
2311                         /* Not supported */
2312                         pse.vmem_data = 0;
2313                         pse.vmem_code = 0;
2314                         pse.stack_size =  0;
2315
2316                         pse.io_rchar = -1;
2317                         pse.io_wchar = -1;
2318                         pse.io_syscr = -1;
2319                         pse.io_syscw = -1;
2320
2321                         pse.cswitch_vol   = -1;
2322                         pse.cswitch_invol = -1;
2323
2324                         ps_list_add (cmdline, cargs, &pse);
2325                 } /* for (i = 0 .. nprocs) */
2326
2327                 if (nprocs < MAXPROCENTRY)
2328                         break;
2329         } /* while (getprocs64() > 0) */
2330         ps_submit_state ("running",  running);
2331         ps_submit_state ("sleeping", sleeping);
2332         ps_submit_state ("zombies",  zombies);
2333         ps_submit_state ("stopped",  stopped);
2334         ps_submit_state ("paging",   paging);
2335         ps_submit_state ("blocked",  blocked);
2336
2337         for (ps = list_head_g; ps != NULL; ps = ps->next)
2338                 ps_submit_proc_list (ps);
2339 /* #endif HAVE_PROCINFO_H */
2340
2341 #elif KERNEL_SOLARIS
2342         /*
2343          * The Solaris section adds a few more process states and removes some
2344          * process states compared to linux. Most notably there is no "PAGING"
2345          * and "BLOCKED" state for a process.  The rest is similar to the linux
2346          * code.
2347          */
2348         int running = 0;
2349         int sleeping = 0;
2350         int zombies = 0;
2351         int stopped = 0;
2352         int detached = 0;
2353         int daemon = 0;
2354         int system = 0;
2355         int orphan = 0;
2356
2357         struct dirent *ent;
2358         DIR *proc;
2359
2360         int status;
2361         procstat_t *ps_ptr;
2362         char state;
2363
2364         char cmdline[PRARGSZ];
2365
2366         ps_list_reset ();
2367
2368         proc = opendir ("/proc");
2369         if (proc == NULL)
2370                 return (-1);
2371
2372         while ((ent = readdir(proc)) != NULL)
2373         {
2374                 long pid;
2375                 struct procstat ps;
2376                 procstat_entry_t pse;
2377                 char *endptr;
2378
2379                 if (!isdigit ((int) ent->d_name[0]))
2380                         continue;
2381
2382                 pid = strtol (ent->d_name, &endptr, 10);
2383                 if (*endptr != 0) /* value didn't completely parse as a number */
2384                         continue;
2385
2386                 status = ps_read_process (pid, &ps, &state);
2387                 if (status != 0)
2388                 {
2389                         DEBUG("ps_read_process failed: %i", status);
2390                         continue;
2391                 }
2392
2393                 memset (&pse, 0, sizeof (pse));
2394                 pse.id = pid;
2395                 pse.age = 0;
2396
2397                 pse.num_proc   = ps.num_proc;
2398                 pse.num_lwp    = ps.num_lwp;
2399                 pse.vmem_size  = ps.vmem_size;
2400                 pse.vmem_rss   = ps.vmem_rss;
2401                 pse.vmem_data  = ps.vmem_data;
2402                 pse.vmem_code  = ps.vmem_code;
2403                 pse.stack_size = ps.stack_size;
2404
2405                 pse.vmem_minflt = 0;
2406                 pse.vmem_minflt_counter = ps.vmem_minflt_counter;
2407                 pse.vmem_majflt = 0;
2408                 pse.vmem_majflt_counter = ps.vmem_majflt_counter;
2409
2410                 pse.cpu_user = 0;
2411                 pse.cpu_user_counter = ps.cpu_user_counter;
2412                 pse.cpu_system = 0;
2413                 pse.cpu_system_counter = ps.cpu_system_counter;
2414
2415                 pse.io_rchar = ps.io_rchar;
2416                 pse.io_wchar = ps.io_wchar;
2417                 pse.io_syscr = ps.io_syscr;
2418                 pse.io_syscw = ps.io_syscw;
2419
2420                 pse.cswitch_vol = -1;
2421                 pse.cswitch_invol = -1;
2422
2423                 switch (state)
2424                 {
2425                         case 'R': running++;  break;
2426                         case 'S': sleeping++; break;
2427                         case 'E': detached++; break;
2428                         case 'Z': zombies++;  break;
2429                         case 'T': stopped++;  break;
2430                         case 'A': daemon++;   break;
2431                         case 'Y': system++;   break;
2432                         case 'O': orphan++;   break;
2433                 }
2434
2435
2436                 ps_list_add (ps.name,
2437                                 ps_get_cmdline (pid, ps.name, cmdline, sizeof (cmdline)),
2438                                 &pse);
2439         } /* while(readdir) */
2440         closedir (proc);
2441
2442         ps_submit_state ("running",  running);
2443         ps_submit_state ("sleeping", sleeping);
2444         ps_submit_state ("zombies",  zombies);
2445         ps_submit_state ("stopped",  stopped);
2446         ps_submit_state ("detached", detached);
2447         ps_submit_state ("daemon",   daemon);
2448         ps_submit_state ("system",   system);
2449         ps_submit_state ("orphan",   orphan);
2450
2451         for (ps_ptr = list_head_g; ps_ptr != NULL; ps_ptr = ps_ptr->next)
2452                 ps_submit_proc_list (ps_ptr);
2453
2454         read_fork_rate();
2455 #endif /* KERNEL_SOLARIS */
2456
2457         return (0);
2458 } /* int ps_read */
2459
2460 void module_register (void)
2461 {
2462         plugin_register_complex_config ("processes", ps_config);
2463         plugin_register_init ("processes", ps_init);
2464         plugin_register_read ("processes", ps_read);
2465 } /* void module_register */