/src/processes.c
C | 2644 lines | 2002 code | 436 blank | 206 comment | 527 complexity | 91e6d51c5e945329e2148f4bd43b2aa2 MD5 | raw file
Possible License(s): GPL-2.0
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- /**
- * collectd - src/processes.c
- * Copyright (C) 2005 Lyonel Vincent
- * Copyright (C) 2006-2017 Florian octo Forster
- * Copyright (C) 2008 Oleg King
- * Copyright (C) 2009 Sebastian Harl
- * Copyright (C) 2009 Andrés J. Díaz
- * Copyright (C) 2009 Manuel Sanmartin
- * Copyright (C) 2010 Clément Stenac
- * Copyright (C) 2012 Cosmin Ioiart
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
- *
- * Authors:
- * Lyonel Vincent <lyonel at ezix.org>
- * Florian octo Forster <octo at collectd.org>
- * Oleg King <king2 at kaluga.ru>
- * Sebastian Harl <sh at tokkee.org>
- * Andrés J. Díaz <ajdiaz at connectical.com>
- * Manuel Sanmartin
- * Clément Stenac <clement.stenac at diwi.org>
- * Cosmin Ioiart <cioiart at gmail.com>
- * Pavel Rochnyack <pavel2000 at ngs.ru>
- * Wilfried Goesgens <dothebart at citadel.org>
- **/
- #include "collectd.h"
- #include "plugin.h"
- #include "utils/common/common.h"
- #if HAVE_LIBTASKSTATS
- #include "utils/taskstats/taskstats.h"
- #include "utils_complain.h"
- #endif
- /* Include header files for the mach system, if they exist.. */
- #if HAVE_THREAD_INFO
- #if HAVE_MACH_MACH_INIT_H
- #include <mach/mach_init.h>
- #endif
- #if HAVE_MACH_HOST_PRIV_H
- #include <mach/host_priv.h>
- #endif
- #if HAVE_MACH_MACH_ERROR_H
- #include <mach/mach_error.h>
- #endif
- #if HAVE_MACH_MACH_HOST_H
- #include <mach/mach_host.h>
- #endif
- #if HAVE_MACH_MACH_PORT_H
- #include <mach/mach_port.h>
- #endif
- #if HAVE_MACH_MACH_TYPES_H
- #include <mach/mach_types.h>
- #endif
- #if HAVE_MACH_MESSAGE_H
- #include <mach/message.h>
- #endif
- #if HAVE_MACH_PROCESSOR_SET_H
- #include <mach/processor_set.h>
- #endif
- #if HAVE_MACH_TASK_H
- #include <mach/task.h>
- #endif
- #if HAVE_MACH_THREAD_ACT_H
- #include <mach/thread_act.h>
- #endif
- #if HAVE_MACH_VM_REGION_H
- #include <mach/vm_region.h>
- #endif
- #if HAVE_MACH_VM_MAP_H
- #include <mach/vm_map.h>
- #endif
- #if HAVE_MACH_VM_PROT_H
- #include <mach/vm_prot.h>
- #endif
- #if HAVE_SYS_SYSCTL_H
- #include <sys/sysctl.h>
- #endif
- /* #endif HAVE_THREAD_INFO */
- #elif KERNEL_LINUX
- #if HAVE_LINUX_CONFIG_H
- #include <linux/config.h>
- #endif
- #ifndef CONFIG_HZ
- #define CONFIG_HZ 100
- #endif
- /* #endif KERNEL_LINUX */
- #elif HAVE_LIBKVM_GETPROCS && \
- (HAVE_STRUCT_KINFO_PROC_FREEBSD || HAVE_STRUCT_KINFO_PROC_OPENBSD)
- #include <kvm.h>
- #include <sys/param.h>
- #include <sys/proc.h>
- #include <sys/sysctl.h>
- #include <sys/user.h>
- /* #endif HAVE_LIBKVM_GETPROCS && (HAVE_STRUCT_KINFO_PROC_FREEBSD ||
- * HAVE_STRUCT_KINFO_PROC_OPENBSD) */
- #elif HAVE_PROCINFO_H
- #include <procinfo.h>
- #include <sys/types.h>
- #define MAXPROCENTRY 32
- #define MAXTHRDENTRY 16
- #define MAXARGLN 1024
- /* #endif HAVE_PROCINFO_H */
- #elif KERNEL_SOLARIS
- /* Hack: Avoid #error when building a 32-bit binary with
- * _FILE_OFFSET_BITS=64. There is a reason for this #error, as one
- * of the structures in <sys/procfs.h> uses an off_t, but that
- * isn't relevant to our usage of procfs. */
- #if !defined(_LP64) && _FILE_OFFSET_BITS == 64
- #define SAVE_FOB_64
- #undef _FILE_OFFSET_BITS
- #endif
- #include <procfs.h>
- #ifdef SAVE_FOB_64
- #define _FILE_OFFSET_BITS 64
- #undef SAVE_FOB_64
- #endif
- #include <dirent.h>
- #include <sys/user.h>
- #ifndef MAXCOMLEN
- #define MAXCOMLEN 16
- #endif
- /* #endif KERNEL_SOLARIS */
- #else
- #error "No applicable input method."
- #endif
- #if HAVE_REGEX_H
- #include <regex.h>
- #endif
- #if HAVE_KSTAT_H
- #include <kstat.h>
- #endif
- #ifdef HAVE_SYS_CAPABILITY_H
- #include <sys/capability.h>
- #endif
- #ifndef CMDLINE_BUFFER_SIZE
- #if defined(ARG_MAX) && (ARG_MAX < 4096)
- #define CMDLINE_BUFFER_SIZE ARG_MAX
- #else
- #define CMDLINE_BUFFER_SIZE 4096
- #endif
- #endif
- #define PROCSTAT_NAME_LEN 256
- typedef struct process_entry_s {
- unsigned long id;
- char name[PROCSTAT_NAME_LEN];
- unsigned long num_proc;
- unsigned long num_lwp;
- unsigned long num_fd;
- unsigned long num_maps;
- unsigned long vmem_size;
- unsigned long vmem_rss;
- unsigned long vmem_data;
- unsigned long vmem_code;
- unsigned long stack_size;
- derive_t vmem_minflt_counter;
- derive_t vmem_majflt_counter;
- derive_t cpu_user_counter;
- derive_t cpu_system_counter;
- /* io data */
- derive_t io_rchar;
- derive_t io_wchar;
- derive_t io_syscr;
- derive_t io_syscw;
- derive_t io_diskr;
- derive_t io_diskw;
- bool has_io;
- derive_t cswitch_vol;
- derive_t cswitch_invol;
- bool has_cswitch;
- #if HAVE_LIBTASKSTATS
- ts_delay_t delay;
- #endif
- bool has_delay;
- bool has_fd;
- bool has_maps;
- } process_entry_t;
- typedef struct procstat_entry_s {
- unsigned long id;
- unsigned char age;
- derive_t vmem_minflt_counter;
- derive_t vmem_majflt_counter;
- derive_t cpu_user_counter;
- derive_t cpu_system_counter;
- /* io data */
- derive_t io_rchar;
- derive_t io_wchar;
- derive_t io_syscr;
- derive_t io_syscw;
- derive_t io_diskr;
- derive_t io_diskw;
- derive_t cswitch_vol;
- derive_t cswitch_invol;
- #if HAVE_LIBTASKSTATS
- value_to_rate_state_t delay_cpu;
- value_to_rate_state_t delay_blkio;
- value_to_rate_state_t delay_swapin;
- value_to_rate_state_t delay_freepages;
- #endif
- struct procstat_entry_s *next;
- } procstat_entry_t;
- typedef struct procstat {
- char name[PROCSTAT_NAME_LEN];
- #if HAVE_REGEX_H
- regex_t *re;
- #endif
- unsigned long num_proc;
- unsigned long num_lwp;
- unsigned long num_fd;
- unsigned long num_maps;
- unsigned long vmem_size;
- unsigned long vmem_rss;
- unsigned long vmem_data;
- unsigned long vmem_code;
- unsigned long stack_size;
- derive_t vmem_minflt_counter;
- derive_t vmem_majflt_counter;
- derive_t cpu_user_counter;
- derive_t cpu_system_counter;
- /* io data */
- derive_t io_rchar;
- derive_t io_wchar;
- derive_t io_syscr;
- derive_t io_syscw;
- derive_t io_diskr;
- derive_t io_diskw;
- derive_t cswitch_vol;
- derive_t cswitch_invol;
- /* Linux Delay Accounting. Unit is ns/s. */
- gauge_t delay_cpu;
- gauge_t delay_blkio;
- gauge_t delay_swapin;
- gauge_t delay_freepages;
- bool report_fd_num;
- bool report_maps_num;
- bool report_ctx_switch;
- bool report_delay;
- struct procstat *next;
- struct procstat_entry_s *instances;
- } procstat_t;
- static procstat_t *list_head_g;
- static bool want_init = true;
- static bool report_ctx_switch;
- static bool report_fd_num;
- static bool report_maps_num;
- static bool report_delay;
- #if HAVE_THREAD_INFO
- static mach_port_t port_host_self;
- static mach_port_t port_task_self;
- static processor_set_name_array_t pset_list;
- static mach_msg_type_number_t pset_list_len;
- /* #endif HAVE_THREAD_INFO */
- #elif KERNEL_LINUX
- static long pagesize_g;
- static void ps_fill_details(const procstat_t *ps, process_entry_t *entry);
- /* #endif KERNEL_LINUX */
- #elif HAVE_LIBKVM_GETPROCS && \
- (HAVE_STRUCT_KINFO_PROC_FREEBSD || HAVE_STRUCT_KINFO_PROC_OPENBSD)
- static int pagesize;
- /* #endif HAVE_LIBKVM_GETPROCS && (HAVE_STRUCT_KINFO_PROC_FREEBSD ||
- * HAVE_STRUCT_KINFO_PROC_OPENBSD) */
- #elif HAVE_PROCINFO_H
- static struct procentry64 procentry[MAXPROCENTRY];
- static struct thrdentry64 thrdentry[MAXTHRDENTRY];
- static int pagesize;
- #ifndef _AIXVERSION_610
- int getprocs64(void *procsinfo, int sizproc, void *fdsinfo, int sizfd,
- pid_t *index, int count);
- int getthrds64(pid_t, void *, int, tid64_t *, int);
- #endif
- int getargs(void *processBuffer, int bufferLen, char *argsBuffer, int argsLen);
- #endif /* HAVE_PROCINFO_H */
- #if HAVE_LIBTASKSTATS
- static ts_t *taskstats_handle;
- #endif
- /* put name of process from config to list_head_g tree
- * list_head_g is a list of 'procstat_t' structs with
- * processes names we want to watch */
- static procstat_t *ps_list_register(const char *name, const char *regexp) {
- procstat_t *new;
- procstat_t *ptr;
- int status;
- new = calloc(1, sizeof(*new));
- if (new == NULL) {
- ERROR("processes plugin: ps_list_register: calloc failed.");
- return NULL;
- }
- sstrncpy(new->name, name, sizeof(new->name));
- new->io_rchar = -1;
- new->io_wchar = -1;
- new->io_syscr = -1;
- new->io_syscw = -1;
- new->io_diskr = -1;
- new->io_diskw = -1;
- new->cswitch_vol = -1;
- new->cswitch_invol = -1;
- new->report_fd_num = report_fd_num;
- new->report_maps_num = report_maps_num;
- new->report_ctx_switch = report_ctx_switch;
- new->report_delay = report_delay;
- #if HAVE_REGEX_H
- if (regexp != NULL) {
- DEBUG("ProcessMatch: adding \"%s\" as criteria to process %s.", regexp,
- name);
- new->re = malloc(sizeof(*new->re));
- if (new->re == NULL) {
- ERROR("processes plugin: ps_list_register: malloc failed.");
- sfree(new);
- return NULL;
- }
- status = regcomp(new->re, regexp, REG_EXTENDED | REG_NOSUB);
- if (status != 0) {
- DEBUG("ProcessMatch: compiling the regular expression \"%s\" failed.",
- regexp);
- sfree(new->re);
- sfree(new);
- return NULL;
- }
- }
- #else
- if (regexp != NULL) {
- ERROR("processes plugin: ps_list_register: "
- "Regular expression \"%s\" found in config "
- "file, but support for regular expressions "
- "has been disabled at compile time.",
- regexp);
- sfree(new);
- return NULL;
- }
- #endif
- for (ptr = list_head_g; ptr != NULL; ptr = ptr->next) {
- if (strcmp(ptr->name, name) == 0) {
- WARNING("processes plugin: You have configured more "
- "than one `Process' or "
- "`ProcessMatch' with the same name. "
- "All but the first setting will be "
- "ignored.");
- #if HAVE_REGEX_H
- sfree(new->re);
- #endif
- sfree(new);
- return NULL;
- }
- if (ptr->next == NULL)
- break;
- }
- if (ptr == NULL)
- list_head_g = new;
- else
- ptr->next = new;
- return new;
- } /* void ps_list_register */
- /* try to match name against entry, returns 1 if success */
- static int ps_list_match(const char *name, const char *cmdline,
- procstat_t *ps) {
- #if HAVE_REGEX_H
- if (ps->re != NULL) {
- int status;
- const char *str;
- str = cmdline;
- if ((str == NULL) || (str[0] == 0))
- str = name;
- assert(str != NULL);
- status = regexec(ps->re, str,
- /* nmatch = */ 0,
- /* pmatch = */ NULL,
- /* eflags = */ 0);
- if (status == 0)
- return 1;
- } else
- #endif
- if (strcmp(ps->name, name) == 0)
- return 1;
- return 0;
- } /* int ps_list_match */
- static void ps_update_counter(derive_t *group_counter, derive_t *curr_counter,
- derive_t new_counter) {
- unsigned long curr_value;
- if (want_init) {
- *curr_counter = new_counter;
- return;
- }
- if (new_counter < *curr_counter)
- curr_value = new_counter + (ULONG_MAX - *curr_counter);
- else
- curr_value = new_counter - *curr_counter;
- if (*group_counter == -1)
- *group_counter = 0;
- *curr_counter = new_counter;
- *group_counter += curr_value;
- }
- #if HAVE_LIBTASKSTATS
- static void ps_update_delay_one(gauge_t *out_rate_sum,
- value_to_rate_state_t *state, uint64_t cnt,
- cdtime_t t) {
- gauge_t rate = NAN;
- int status = value_to_rate(&rate, (value_t){.counter = (counter_t)cnt},
- DS_TYPE_COUNTER, t, state);
- if ((status != 0) || isnan(rate)) {
- return;
- }
- if (isnan(*out_rate_sum)) {
- *out_rate_sum = rate;
- } else {
- *out_rate_sum += rate;
- }
- }
- static void ps_update_delay(procstat_t *out, procstat_entry_t *prev,
- process_entry_t *curr) {
- cdtime_t now = cdtime();
- ps_update_delay_one(&out->delay_cpu, &prev->delay_cpu, curr->delay.cpu_ns,
- now);
- ps_update_delay_one(&out->delay_blkio, &prev->delay_blkio,
- curr->delay.blkio_ns, now);
- ps_update_delay_one(&out->delay_swapin, &prev->delay_swapin,
- curr->delay.swapin_ns, now);
- ps_update_delay_one(&out->delay_freepages, &prev->delay_freepages,
- curr->delay.freepages_ns, now);
- }
- #endif
- /* add process entry to 'instances' of process 'name' (or refresh it) */
- static void ps_list_add(const char *name, const char *cmdline,
- process_entry_t *entry) {
- procstat_entry_t *pse;
- if (entry->id == 0)
- return;
- for (procstat_t *ps = list_head_g; ps != NULL; ps = ps->next) {
- if ((ps_list_match(name, cmdline, ps)) == 0)
- continue;
- #if KERNEL_LINUX
- ps_fill_details(ps, entry);
- #endif
- for (pse = ps->instances; pse != NULL; pse = pse->next)
- if ((pse->id == entry->id) || (pse->next == NULL))
- break;
- if ((pse == NULL) || (pse->id != entry->id)) {
- procstat_entry_t *new;
- new = calloc(1, sizeof(*new));
- if (new == NULL)
- return;
- new->id = entry->id;
- if (pse == NULL)
- ps->instances = new;
- else
- pse->next = new;
- pse = new;
- }
- pse->age = 0;
- ps->num_proc += entry->num_proc;
- ps->num_lwp += entry->num_lwp;
- ps->num_fd += entry->num_fd;
- ps->num_maps += entry->num_maps;
- ps->vmem_size += entry->vmem_size;
- ps->vmem_rss += entry->vmem_rss;
- ps->vmem_data += entry->vmem_data;
- ps->vmem_code += entry->vmem_code;
- ps->stack_size += entry->stack_size;
- if ((entry->io_rchar != -1) && (entry->io_wchar != -1)) {
- ps_update_counter(&ps->io_rchar, &pse->io_rchar, entry->io_rchar);
- ps_update_counter(&ps->io_wchar, &pse->io_wchar, entry->io_wchar);
- }
- if ((entry->io_syscr != -1) && (entry->io_syscw != -1)) {
- ps_update_counter(&ps->io_syscr, &pse->io_syscr, entry->io_syscr);
- ps_update_counter(&ps->io_syscw, &pse->io_syscw, entry->io_syscw);
- }
- if ((entry->io_diskr != -1) && (entry->io_diskw != -1)) {
- ps_update_counter(&ps->io_diskr, &pse->io_diskr, entry->io_diskr);
- ps_update_counter(&ps->io_diskw, &pse->io_diskw, entry->io_diskw);
- }
- if ((entry->cswitch_vol != -1) && (entry->cswitch_invol != -1)) {
- ps_update_counter(&ps->cswitch_vol, &pse->cswitch_vol,
- entry->cswitch_vol);
- ps_update_counter(&ps->cswitch_invol, &pse->cswitch_invol,
- entry->cswitch_invol);
- }
- ps_update_counter(&ps->vmem_minflt_counter, &pse->vmem_minflt_counter,
- entry->vmem_minflt_counter);
- ps_update_counter(&ps->vmem_majflt_counter, &pse->vmem_majflt_counter,
- entry->vmem_majflt_counter);
- ps_update_counter(&ps->cpu_user_counter, &pse->cpu_user_counter,
- entry->cpu_user_counter);
- ps_update_counter(&ps->cpu_system_counter, &pse->cpu_system_counter,
- entry->cpu_system_counter);
- #if HAVE_LIBTASKSTATS
- if (entry->has_delay)
- ps_update_delay(ps, pse, entry);
- #endif
- }
- }
- /* remove old entries from instances of processes in list_head_g */
- static void ps_list_reset(void) {
- procstat_entry_t *pse;
- procstat_entry_t *pse_prev;
- for (procstat_t *ps = list_head_g; ps != NULL; ps = ps->next) {
- ps->num_proc = 0;
- ps->num_lwp = 0;
- ps->num_fd = 0;
- ps->num_maps = 0;
- ps->vmem_size = 0;
- ps->vmem_rss = 0;
- ps->vmem_data = 0;
- ps->vmem_code = 0;
- ps->stack_size = 0;
- ps->delay_cpu = NAN;
- ps->delay_blkio = NAN;
- ps->delay_swapin = NAN;
- ps->delay_freepages = NAN;
- pse_prev = NULL;
- pse = ps->instances;
- while (pse != NULL) {
- if (pse->age > 0) {
- DEBUG("Removing this procstat entry cause it's too old: "
- "id = %lu; name = %s;",
- pse->id, ps->name);
- if (pse_prev == NULL) {
- ps->instances = pse->next;
- free(pse);
- pse = ps->instances;
- } else {
- pse_prev->next = pse->next;
- free(pse);
- pse = pse_prev->next;
- }
- } else {
- pse->age = 1;
- pse_prev = pse;
- pse = pse->next;
- }
- } /* while (pse != NULL) */
- } /* for (ps = list_head_g; ps != NULL; ps = ps->next) */
- }
- static void ps_tune_instance(oconfig_item_t *ci, procstat_t *ps) {
- for (int i = 0; i < ci->children_num; i++) {
- oconfig_item_t *c = ci->children + i;
- if (strcasecmp(c->key, "CollectContextSwitch") == 0)
- cf_util_get_boolean(c, &ps->report_ctx_switch);
- else if (strcasecmp(c->key, "CollectFileDescriptor") == 0)
- cf_util_get_boolean(c, &ps->report_fd_num);
- else if (strcasecmp(c->key, "CollectMemoryMaps") == 0)
- cf_util_get_boolean(c, &ps->report_maps_num);
- else if (strcasecmp(c->key, "CollectDelayAccounting") == 0) {
- #if HAVE_LIBTASKSTATS
- cf_util_get_boolean(c, &ps->report_delay);
- #else
- WARNING("processes plugin: The plugin has been compiled without support "
- "for the \"CollectDelayAccounting\" option.");
- #endif
- } else {
- ERROR("processes plugin: Option \"%s\" not allowed here.", c->key);
- }
- } /* for (ci->children) */
- } /* void ps_tune_instance */
- /* put all pre-defined 'Process' names from config to list_head_g tree */
- static int ps_config(oconfig_item_t *ci) {
- #if KERNEL_LINUX
- const size_t max_procname_len = 15;
- #elif KERNEL_SOLARIS || KERNEL_FREEBSD
- const size_t max_procname_len = MAXCOMLEN - 1;
- #endif
- procstat_t *ps;
- for (int i = 0; i < ci->children_num; ++i) {
- oconfig_item_t *c = ci->children + i;
- if (strcasecmp(c->key, "Process") == 0) {
- if ((c->values_num != 1) || (OCONFIG_TYPE_STRING != c->values[0].type)) {
- ERROR("processes plugin: `Process' expects exactly "
- "one string argument (got %i).",
- c->values_num);
- continue;
- }
- #if KERNEL_LINUX || KERNEL_SOLARIS || KERNEL_FREEBSD
- if (strlen(c->values[0].value.string) > max_procname_len) {
- WARNING("processes plugin: this platform has a %" PRIsz
- " character limit "
- "to process names. The `Process \"%s\"' option will "
- "not work as expected.",
- max_procname_len, c->values[0].value.string);
- }
- #endif
- ps = ps_list_register(c->values[0].value.string, NULL);
- if (c->children_num != 0 && ps != NULL)
- ps_tune_instance(c, ps);
- } else if (strcasecmp(c->key, "ProcessMatch") == 0) {
- if ((c->values_num != 2) || (OCONFIG_TYPE_STRING != c->values[0].type) ||
- (OCONFIG_TYPE_STRING != c->values[1].type)) {
- ERROR("processes plugin: `ProcessMatch' needs exactly "
- "two string arguments (got %i).",
- c->values_num);
- continue;
- }
- ps = ps_list_register(c->values[0].value.string,
- c->values[1].value.string);
- if (c->children_num != 0 && ps != NULL)
- ps_tune_instance(c, ps);
- } else if (strcasecmp(c->key, "CollectContextSwitch") == 0) {
- cf_util_get_boolean(c, &report_ctx_switch);
- } else if (strcasecmp(c->key, "CollectFileDescriptor") == 0) {
- cf_util_get_boolean(c, &report_fd_num);
- } else if (strcasecmp(c->key, "CollectMemoryMaps") == 0) {
- cf_util_get_boolean(c, &report_maps_num);
- } else if (strcasecmp(c->key, "CollectDelayAccounting") == 0) {
- #if HAVE_LIBTASKSTATS
- cf_util_get_boolean(c, &report_delay);
- #else
- WARNING("processes plugin: The plugin has been compiled without support "
- "for the \"CollectDelayAccounting\" option.");
- #endif
- } else {
- ERROR("processes plugin: The `%s' configuration option is not "
- "understood and will be ignored.",
- c->key);
- continue;
- }
- }
- return 0;
- }
- static int ps_init(void) {
- #if HAVE_THREAD_INFO
- kern_return_t status;
- port_host_self = mach_host_self();
- port_task_self = mach_task_self();
- if (pset_list != NULL) {
- vm_deallocate(port_task_self, (vm_address_t)pset_list,
- pset_list_len * sizeof(processor_set_t));
- pset_list = NULL;
- pset_list_len = 0;
- }
- if ((status = host_processor_sets(port_host_self, &pset_list,
- &pset_list_len)) != KERN_SUCCESS) {
- ERROR("host_processor_sets failed: %s\n", mach_error_string(status));
- pset_list = NULL;
- pset_list_len = 0;
- return -1;
- }
- /* #endif HAVE_THREAD_INFO */
- #elif KERNEL_LINUX
- pagesize_g = sysconf(_SC_PAGESIZE);
- DEBUG("pagesize_g = %li; CONFIG_HZ = %i;", pagesize_g, CONFIG_HZ);
- #if HAVE_LIBTASKSTATS
- if (taskstats_handle == NULL) {
- taskstats_handle = ts_create();
- if (taskstats_handle == NULL) {
- WARNING("processes plugin: Creating taskstats handle failed.");
- }
- }
- #endif
- /* #endif KERNEL_LINUX */
- #elif HAVE_LIBKVM_GETPROCS && \
- (HAVE_STRUCT_KINFO_PROC_FREEBSD || HAVE_STRUCT_KINFO_PROC_OPENBSD)
- pagesize = getpagesize();
- /* #endif HAVE_LIBKVM_GETPROCS && (HAVE_STRUCT_KINFO_PROC_FREEBSD ||
- * HAVE_STRUCT_KINFO_PROC_OPENBSD) */
- #elif HAVE_PROCINFO_H
- pagesize = getpagesize();
- #endif /* HAVE_PROCINFO_H */
- return 0;
- } /* int ps_init */
- /* submit global state (e.g.: qty of zombies, running, etc..) */
- static void ps_submit_state(const char *state, double value) {
- value_list_t vl = VALUE_LIST_INIT;
- vl.values = &(value_t){.gauge = value};
- vl.values_len = 1;
- sstrncpy(vl.plugin, "processes", sizeof(vl.plugin));
- sstrncpy(vl.plugin_instance, "", sizeof(vl.plugin_instance));
- sstrncpy(vl.type, "ps_state", sizeof(vl.type));
- sstrncpy(vl.type_instance, state, sizeof(vl.type_instance));
- plugin_dispatch_values(&vl);
- }
- /* submit info about specific process (e.g.: memory taken, cpu usage, etc..) */
- static void ps_submit_proc_list(procstat_t *ps) {
- value_list_t vl = VALUE_LIST_INIT;
- value_t values[2];
- vl.values = values;
- sstrncpy(vl.plugin, "processes", sizeof(vl.plugin));
- sstrncpy(vl.plugin_instance, ps->name, sizeof(vl.plugin_instance));
- sstrncpy(vl.type, "ps_vm", sizeof(vl.type));
- vl.values[0].gauge = ps->vmem_size;
- vl.values_len = 1;
- plugin_dispatch_values(&vl);
- sstrncpy(vl.type, "ps_rss", sizeof(vl.type));
- vl.values[0].gauge = ps->vmem_rss;
- vl.values_len = 1;
- plugin_dispatch_values(&vl);
- sstrncpy(vl.type, "ps_data", sizeof(vl.type));
- vl.values[0].gauge = ps->vmem_data;
- vl.values_len = 1;
- plugin_dispatch_values(&vl);
- sstrncpy(vl.type, "ps_code", sizeof(vl.type));
- vl.values[0].gauge = ps->vmem_code;
- vl.values_len = 1;
- plugin_dispatch_values(&vl);
- sstrncpy(vl.type, "ps_stacksize", sizeof(vl.type));
- vl.values[0].gauge = ps->stack_size;
- vl.values_len = 1;
- plugin_dispatch_values(&vl);
- sstrncpy(vl.type, "ps_cputime", sizeof(vl.type));
- vl.values[0].derive = ps->cpu_user_counter;
- vl.values[1].derive = ps->cpu_system_counter;
- vl.values_len = 2;
- plugin_dispatch_values(&vl);
- sstrncpy(vl.type, "ps_count", sizeof(vl.type));
- vl.values[0].gauge = ps->num_proc;
- vl.values[1].gauge = ps->num_lwp;
- vl.values_len = 2;
- plugin_dispatch_values(&vl);
- sstrncpy(vl.type, "ps_pagefaults", sizeof(vl.type));
- vl.values[0].derive = ps->vmem_minflt_counter;
- vl.values[1].derive = ps->vmem_majflt_counter;
- vl.values_len = 2;
- plugin_dispatch_values(&vl);
- if ((ps->io_rchar != -1) && (ps->io_wchar != -1)) {
- sstrncpy(vl.type, "io_octets", sizeof(vl.type));
- vl.values[0].derive = ps->io_rchar;
- vl.values[1].derive = ps->io_wchar;
- vl.values_len = 2;
- plugin_dispatch_values(&vl);
- }
- if ((ps->io_syscr != -1) && (ps->io_syscw != -1)) {
- sstrncpy(vl.type, "io_ops", sizeof(vl.type));
- vl.values[0].derive = ps->io_syscr;
- vl.values[1].derive = ps->io_syscw;
- vl.values_len = 2;
- plugin_dispatch_values(&vl);
- }
- if ((ps->io_diskr != -1) && (ps->io_diskw != -1)) {
- sstrncpy(vl.type, "disk_octets", sizeof(vl.type));
- vl.values[0].derive = ps->io_diskr;
- vl.values[1].derive = ps->io_diskw;
- vl.values_len = 2;
- plugin_dispatch_values(&vl);
- }
- if (ps->num_fd > 0) {
- sstrncpy(vl.type, "file_handles", sizeof(vl.type));
- vl.values[0].gauge = ps->num_fd;
- vl.values_len = 1;
- plugin_dispatch_values(&vl);
- }
- if (ps->num_maps > 0) {
- sstrncpy(vl.type, "file_handles", sizeof(vl.type));
- sstrncpy(vl.type_instance, "mapped", sizeof(vl.type_instance));
- vl.values[0].gauge = ps->num_maps;
- vl.values_len = 1;
- plugin_dispatch_values(&vl);
- }
- if ((ps->cswitch_vol != -1) && (ps->cswitch_invol != -1)) {
- sstrncpy(vl.type, "contextswitch", sizeof(vl.type));
- sstrncpy(vl.type_instance, "voluntary", sizeof(vl.type_instance));
- vl.values[0].derive = ps->cswitch_vol;
- vl.values_len = 1;
- plugin_dispatch_values(&vl);
- sstrncpy(vl.type, "contextswitch", sizeof(vl.type));
- sstrncpy(vl.type_instance, "involuntary", sizeof(vl.type_instance));
- vl.values[0].derive = ps->cswitch_invol;
- vl.values_len = 1;
- plugin_dispatch_values(&vl);
- }
- /* The ps->delay_* metrics are in nanoseconds per second. Convert to seconds
- * per second. */
- gauge_t const delay_factor = 1000000000.0;
- struct {
- const char *type_instance;
- gauge_t rate_ns;
- } delay_metrics[] = {
- {"delay-cpu", ps->delay_cpu},
- {"delay-blkio", ps->delay_blkio},
- {"delay-swapin", ps->delay_swapin},
- {"delay-freepages", ps->delay_freepages},
- };
- for (size_t i = 0; i < STATIC_ARRAY_SIZE(delay_metrics); i++) {
- if (isnan(delay_metrics[i].rate_ns)) {
- continue;
- }
- sstrncpy(vl.type, "delay_rate", sizeof(vl.type));
- sstrncpy(vl.type_instance, delay_metrics[i].type_instance,
- sizeof(vl.type_instance));
- vl.values[0].gauge = delay_metrics[i].rate_ns / delay_factor;
- vl.values_len = 1;
- plugin_dispatch_values(&vl);
- }
- DEBUG(
- "name = %s; num_proc = %lu; num_lwp = %lu; num_fd = %lu; num_maps = %lu; "
- "vmem_size = %lu; vmem_rss = %lu; vmem_data = %lu; "
- "vmem_code = %lu; "
- "vmem_minflt_counter = %" PRIi64 "; vmem_majflt_counter = %" PRIi64 "; "
- "cpu_user_counter = %" PRIi64 "; cpu_system_counter = %" PRIi64 "; "
- "io_rchar = %" PRIi64 "; io_wchar = %" PRIi64 "; "
- "io_syscr = %" PRIi64 "; io_syscw = %" PRIi64 "; "
- "io_diskr = %" PRIi64 "; io_diskw = %" PRIi64 "; "
- "cswitch_vol = %" PRIi64 "; cswitch_invol = %" PRIi64 "; "
- "delay_cpu = %g; delay_blkio = %g; "
- "delay_swapin = %g; delay_freepages = %g;",
- ps->name, ps->num_proc, ps->num_lwp, ps->num_fd, ps->num_maps,
- ps->vmem_size, ps->vmem_rss, ps->vmem_data, ps->vmem_code,
- ps->vmem_minflt_counter, ps->vmem_majflt_counter, ps->cpu_user_counter,
- ps->cpu_system_counter, ps->io_rchar, ps->io_wchar, ps->io_syscr,
- ps->io_syscw, ps->io_diskr, ps->io_diskw, ps->cswitch_vol,
- ps->cswitch_invol, ps->delay_cpu, ps->delay_blkio, ps->delay_swapin,
- ps->delay_freepages);
- } /* void ps_submit_proc_list */
- #if KERNEL_LINUX || KERNEL_SOLARIS
- static void ps_submit_fork_rate(derive_t value) {
- value_list_t vl = VALUE_LIST_INIT;
- vl.values = &(value_t){.derive = value};
- vl.values_len = 1;
- sstrncpy(vl.plugin, "processes", sizeof(vl.plugin));
- sstrncpy(vl.plugin_instance, "", sizeof(vl.plugin_instance));
- sstrncpy(vl.type, "fork_rate", sizeof(vl.type));
- sstrncpy(vl.type_instance, "", sizeof(vl.type_instance));
- plugin_dispatch_values(&vl);
- }
- #endif /* KERNEL_LINUX || KERNEL_SOLARIS*/
- /* ------- additional functions for KERNEL_LINUX/HAVE_THREAD_INFO ------- */
- #if KERNEL_LINUX
- static int ps_read_tasks_status(process_entry_t *ps) {
- char dirname[64];
- DIR *dh;
- char filename[64];
- FILE *fh;
- struct dirent *ent;
- derive_t cswitch_vol = 0;
- derive_t cswitch_invol = 0;
- char buffer[1024];
- char *fields[8];
- int numfields;
- snprintf(dirname, sizeof(dirname), "/proc/%li/task", ps->id);
- if ((dh = opendir(dirname)) == NULL) {
- DEBUG("Failed to open directory `%s'", dirname);
- return -1;
- }
- while ((ent = readdir(dh)) != NULL) {
- char *tpid;
- if (!isdigit((int)ent->d_name[0]))
- continue;
- tpid = ent->d_name;
- int r = snprintf(filename, sizeof(filename), "/proc/%li/task/%s/status",
- ps->id, tpid);
- if ((size_t)r >= sizeof(filename)) {
- DEBUG("Filename too long: `%s'", filename);
- continue;
- }
- if ((fh = fopen(filename, "r")) == NULL) {
- DEBUG("Failed to open file `%s'", filename);
- continue;
- }
- while (fgets(buffer, sizeof(buffer), fh) != NULL) {
- derive_t tmp;
- char *endptr;
- if (strncmp(buffer, "voluntary_ctxt_switches", 23) != 0 &&
- strncmp(buffer, "nonvoluntary_ctxt_switches", 26) != 0)
- continue;
- numfields = strsplit(buffer, fields, STATIC_ARRAY_SIZE(fields));
- if (numfields < 2)
- continue;
- errno = 0;
- endptr = NULL;
- tmp = (derive_t)strtoll(fields[1], &endptr, /* base = */ 10);
- if ((errno == 0) && (endptr != fields[1])) {
- if (strncmp(buffer, "voluntary_ctxt_switches", 23) == 0) {
- cswitch_vol += tmp;
- } else if (strncmp(buffer, "nonvoluntary_ctxt_switches", 26) == 0) {
- cswitch_invol += tmp;
- }
- }
- } /* while (fgets) */
- if (fclose(fh)) {
- WARNING("processes: fclose: %s", STRERRNO);
- }
- }
- closedir(dh);
- ps->cswitch_vol = cswitch_vol;
- ps->cswitch_invol = cswitch_invol;
- return 0;
- } /* int *ps_read_tasks_status */
- /* Read data from /proc/pid/status */
- static int ps_read_status(long pid, process_entry_t *ps) {
- FILE *fh;
- char buffer[1024];
- char filename[64];
- unsigned long lib = 0;
- unsigned long exe = 0;
- unsigned long data = 0;
- unsigned long threads = 0;
- char *fields[8];
- int numfields;
- snprintf(filename, sizeof(filename), "/proc/%li/status", pid);
- if ((fh = fopen(filename, "r")) == NULL)
- return -1;
- while (fgets(buffer, sizeof(buffer), fh) != NULL) {
- unsigned long tmp;
- char *endptr;
- if (strncmp(buffer, "Vm", 2) != 0 && strncmp(buffer, "Threads", 7) != 0)
- continue;
- numfields = strsplit(buffer, fields, STATIC_ARRAY_SIZE(fields));
- if (numfields < 2)
- continue;
- errno = 0;
- endptr = NULL;
- tmp = strtoul(fields[1], &endptr, /* base = */ 10);
- if ((errno == 0) && (endptr != fields[1])) {
- if (strncmp(buffer, "VmData", 6) == 0) {
- data = tmp;
- } else if (strncmp(buffer, "VmLib", 5) == 0) {
- lib = tmp;
- } else if (strncmp(buffer, "VmExe", 5) == 0) {
- exe = tmp;
- } else if (strncmp(buffer, "Threads", 7) == 0) {
- threads = tmp;
- }
- }
- } /* while (fgets) */
- if (fclose(fh)) {
- WARNING("processes: fclose: %s", STRERRNO);
- }
- ps->vmem_data = data * 1024;
- ps->vmem_code = (exe + lib) * 1024;
- if (threads != 0)
- ps->num_lwp = threads;
- return 0;
- } /* int *ps_read_status */
- static int ps_read_io(process_entry_t *ps) {
- FILE *fh;
- char buffer[1024];
- char filename[64];
- char *fields[8];
- int numfields;
- snprintf(filename, sizeof(filename), "/proc/%li/io", ps->id);
- if ((fh = fopen(filename, "r")) == NULL) {
- DEBUG("ps_read_io: Failed to open file `%s'", filename);
- return -1;
- }
- while (fgets(buffer, sizeof(buffer), fh) != NULL) {
- derive_t *val = NULL;
- long long tmp;
- char *endptr;
- if (strncasecmp(buffer, "rchar:", 6) == 0)
- val = &(ps->io_rchar);
- else if (strncasecmp(buffer, "wchar:", 6) == 0)
- val = &(ps->io_wchar);
- else if (strncasecmp(buffer, "syscr:", 6) == 0)
- val = &(ps->io_syscr);
- else if (strncasecmp(buffer, "syscw:", 6) == 0)
- val = &(ps->io_syscw);
- else if (strncasecmp(buffer, "read_bytes:", 11) == 0)
- val = &(ps->io_diskr);
- else if (strncasecmp(buffer, "write_bytes:", 12) == 0)
- val = &(ps->io_diskw);
- else
- continue;
- numfields = strsplit(buffer, fields, STATIC_ARRAY_SIZE(fields));
- if (numfields < 2)
- continue;
- errno = 0;
- endptr = NULL;
- tmp = strtoll(fields[1], &endptr, /* base = */ 10);
- if ((errno != 0) || (endptr == fields[1]))
- *val = -1;
- else
- *val = (derive_t)tmp;
- } /* while (fgets) */
- if (fclose(fh)) {
- WARNING("processes: fclose: %s", STRERRNO);
- }
- return 0;
- } /* int ps_read_io (...) */
- static int ps_count_maps(pid_t pid) {
- FILE *fh;
- char buffer[1024];
- char filename[64];
- int count = 0;
- snprintf(filename, sizeof(filename), "/proc/%d/maps", pid);
- if ((fh = fopen(filename, "r")) == NULL) {
- DEBUG("ps_count_maps: Failed to open file `%s'", filename);
- return -1;
- }
- while (fgets(buffer, sizeof(buffer), fh) != NULL) {
- if (strchr(buffer, '\n')) {
- count++;
- }
- } /* while (fgets) */
- if (fclose(fh)) {
- WARNING("processes: fclose: %s", STRERRNO);
- }
- return count;
- } /* int ps_count_maps (...) */
- static int ps_count_fd(int pid) {
- char dirname[64];
- DIR *dh;
- struct dirent *ent;
- int count = 0;
- snprintf(dirname, sizeof(dirname), "/proc/%i/fd", pid);
- if ((dh = opendir(dirname)) == NULL) {
- DEBUG("Failed to open directory `%s'", dirname);
- return -1;
- }
- while ((ent = readdir(dh)) != NULL) {
- if (!isdigit((int)ent->d_name[0]))
- continue;
- else
- count++;
- }
- closedir(dh);
- return (count >= 1) ? count : 1;
- } /* int ps_count_fd (pid) */
- #if HAVE_LIBTASKSTATS
- static int ps_delay(process_entry_t *ps) {
- if (taskstats_handle == NULL) {
- return ENOTCONN;
- }
- int status = ts_delay_by_tgid(taskstats_handle, (uint32_t)ps->id, &ps->delay);
- if (status == EPERM) {
- static c_complain_t c;
- #if defined(HAVE_SYS_CAPABILITY_H) && defined(CAP_NET_ADMIN)
- if (check_capability(CAP_NET_ADMIN) != 0) {
- if (getuid() == 0) {
- c_complain(
- LOG_ERR, &c,
- "processes plugin: Reading Delay Accounting metric failed: %s. "
- "collectd is running as root, but missing the CAP_NET_ADMIN "
- "capability. The most common cause for this is that the init "
- "system is dropping capabilities.",
- STRERROR(status));
- } else {
- c_complain(
- LOG_ERR, &c,
- "processes plugin: Reading Delay Accounting metric failed: %s. "
- "collectd is not running as root and missing the CAP_NET_ADMIN "
- "capability. Either run collectd as root or grant it the "
- "CAP_NET_ADMIN capability using \"setcap cap_net_admin=ep " PREFIX
- "/sbin/collectd\".",
- STRERROR(status));
- }
- } else {
- ERROR("processes plugin: ts_delay_by_tgid failed: %s. The CAP_NET_ADMIN "
- "capability is available (I checked), so this error is utterly "
- "unexpected.",
- STRERROR(status));
- }
- #else
- c_complain(LOG_ERR, &c,
- "processes plugin: Reading Delay Accounting metric failed: %s. "
- "Reading Delay Accounting metrics requires root privileges.",
- STRERROR(status));
- #endif
- return status;
- } else if (status != 0) {
- ERROR("processes plugin: ts_delay_by_tgid failed: %s", STRERROR(status));
- return status;
- }
- return 0;
- }
- #endif
- static void ps_fill_details(const procstat_t *ps, process_entry_t *entry) {
- if (entry->has_io == false) {
- ps_read_io(entry);
- entry->has_io = true;
- }
- if (ps->report_ctx_switch) {
- if (entry->has_cswitch == false) {
- ps_read_tasks_status(entry);
- entry->has_cswitch = true;
- }
- }
- if (ps->report_maps_num) {
- int num_maps;
- if (entry->has_maps == false && (num_maps = ps_count_maps(entry->id)) > 0) {
- entry->num_maps = num_maps;
- }
- entry->has_maps = true;
- }
- if (ps->report_fd_num) {
- int num_fd;
- if (entry->has_fd == false && (num_fd = ps_count_fd(entry->id)) > 0) {
- entry->num_fd = num_fd;
- }
- entry->has_fd = true;
- }
- #if HAVE_LIBTASKSTATS
- if (ps->report_delay && !entry->has_delay) {
- if (ps_delay(entry) == 0) {
- entry->has_delay = true;
- }
- }
- #endif
- } /* void ps_fill_details (...) */
- /* ps_read_process reads process counters on Linux. */
- static int ps_read_process(long pid, process_entry_t *ps, char *state) {
- char filename[64];
- char buffer[1024];
- char *fields[64];
- char fields_len;
- size_t buffer_len;
- char *buffer_ptr;
- size_t name_start_pos;
- size_t name_end_pos;
- size_t name_len;
- derive_t cpu_user_counter;
- derive_t cpu_system_counter;
- long long unsigned vmem_size;
- long long unsigned vmem_rss;
- long long unsigned stack_size;
- ssize_t status;
- snprintf(filename, sizeof(filename), "/proc/%li/stat", pid);
- status = read_text_file_contents(filename, buffer, sizeof(buffer));
- if (status <= 0)
- return -1;
- buffer_len = (size_t)status;
- /* The name of the process is enclosed in parens. Since the name can
- * contain parens itself, spaces, numbers and pretty much everything
- * else, use these to determine the process name. We don't use
- * strchr(3) and strrchr(3) to avoid pointer arithmetic which would
- * otherwise be required to determine name_len. */
- name_start_pos = 0;
- while (name_start_pos < buffer_len && buffer[name_start_pos] != '(')
- name_start_pos++;
- name_end_pos = buffer_len;
- while (name_end_pos > 0 && buffer[name_end_pos] != ')')
- name_end_pos--;
- /* Either '(' or ')' is not found or they are in the wrong order.
- * Anyway, something weird that shouldn't happen ever. */
- if (name_start_pos >= name_end_pos) {
- ERROR("processes plugin: name_start_pos = %" PRIsz
- " >= name_end_pos = %" PRIsz,
- name_start_pos, name_end_pos);
- return -1;
- }
- name_len = (name_end_pos - name_start_pos) - 1;
- if (name_len >= sizeof(ps->name))
- name_len = sizeof(ps->name) - 1;
- sstrncpy(ps->name, &buffer[name_start_pos + 1], name_len + 1);
- if ((buffer_len - name_end_pos) < 2)
- return -1;
- buffer_ptr = &buffer[name_end_pos + 2];
- fields_len = strsplit(buffer_ptr, fields, STATIC_ARRAY_SIZE(fields));
- if (fields_len < 22) {
- DEBUG("processes plugin: ps_read_process (pid = %li):"
- " `%s' has only %i fields..",
- pid, filename, fields_len);
- return -1;
- }
- *state = fields[0][0];
- if (*state == 'Z') {
- ps->num_lwp = 0;
- ps->num_proc = 0;
- } else {
- ps->num_lwp = strtoul(fields[17], /* endptr = */ NULL, /* base = */ 10);
- if ((ps_read_status(pid, ps)) != 0) {
- /* No VMem data */
- ps->vmem_data = -1;
- ps->vmem_code = -1;
- DEBUG("ps_read_process: did not get vmem data for pid %li", pid);
- }
- if (ps->num_lwp == 0)
- ps->num_lwp = 1;
- ps->num_proc = 1;
- }
- /* Leave the rest at zero if this is only a zombi */
- if (ps->num_proc == 0) {
- DEBUG("processes plugin: This is only a zombie: pid = %li; "
- "name = %s;",
- pid, ps->name);
- return 0;
- }
- cpu_user_counter = atoll(fields[11]);
- cpu_system_counter = atoll(fields[12]);
- vmem_size = atoll(fields[20]);
- vmem_rss = atoll(fields[21]);
- ps->vmem_minflt_counter = atol(fields[7]);
- ps->vmem_majflt_counter = atol(fields[9]);
- {
- unsigned long long stack_start = atoll(fields[25]);
- unsigned long long stack_ptr = atoll(fields[26]);
- stack_size = (stack_start > stack_ptr) ? stack_start - stack_ptr
- : stack_ptr - stack_start;
- }
- /* Convert jiffies to useconds */
- cpu_user_counter = cpu_user_counter * 1000000 / CONFIG_HZ;
- cpu_system_counter = cpu_system_counter * 1000000 / CONFIG_HZ;
- vmem_rss = vmem_rss * pagesize_g;
- ps->cpu_user_counter = cpu_user_counter;
- ps->cpu_system_counter = cpu_system_counter;
- ps->vmem_size = (unsigned long)vmem_size;
- ps->vmem_rss = (unsigned long)vmem_rss;
- ps->stack_size = (unsigned long)stack_size;
- /* no data by default. May be filled by ps_fill_details () */
- ps->io_rchar = -1;
- ps->io_wchar = -1;
- ps->io_syscr = -1;
- ps->io_syscw = -1;
- ps->io_diskr = -1;
- ps->io_diskw = -1;
- ps->cswitch_vol = -1;
- ps->cswitch_invol = -1;
- /* success */
- return 0;
- } /* int ps_read_process (...) */
- static char *ps_get_cmdline(long pid, char *name, char *buf, size_t buf_len) {
- char *buf_ptr;
- size_t len;
- char file[PATH_MAX];
- int fd;
- size_t n;
- if ((pid < 1) || (NULL == buf) || (buf_len < 2))
- return NULL;
- snprintf(file, sizeof(file), "/proc/%li/cmdline", pid);
- errno = 0;
- fd = open(file, O_RDONLY);
- if (fd < 0) {
- /* ENOENT means the process exited while we were handling it.
- * Don't complain about this, it only fills the logs. */
- if (errno != ENOENT)
- WARNING("processes plugin: Failed to open `%s': %s.", file, STRERRNO);
- return NULL;
- }
- buf_ptr = buf;
- len = buf_len;
- n = 0;
- while (42) {
- ssize_t status;
- status = read(fd, (void *)buf_ptr, len);
- if (status < 0) {
- if ((EAGAIN == errno) || (EINTR == errno))
- continue;
- WARNING("processes plugin: Failed to read from `%s': %s.", file,
- STRERRNO);
- close(fd);
- return NULL;
- }
- n += status;
- if (status == 0)
- break;
- buf_ptr += status;
- len -= status;
- if (len == 0)
- break;
- }
- close(fd);
- if (0 == n) {
- /* cmdline not available; e.g. kernel thread, zombie */
- if (NULL == name)
- return NULL;
- snprintf(buf, buf_len, "[%s]", name);
- return buf;
- }
- assert(n <= buf_len);
- if (n == buf_len)
- --n;
- buf[n] = '\0';
- --n;
- /* remove trailing whitespace */
- while ((n > 0) && (isspace(buf[n]) || ('\0' == buf[n]))) {
- buf[n] = '\0';
- --n;
- }
- /* arguments are separated by '\0' in /proc/<pid>/cmdline */
- while (n > 0) {
- if ('\0' == buf[n])
- buf[n] = ' ';
- --n;
- }
- return buf;
- } /* char *ps_get_cmdline (...) */
- static int read_fork_rate(void) {
- FILE *proc_stat;
- char buffer[1024];
- value_t value;
- bool value_valid = 0;
- proc_stat = fopen("/proc/stat", "r");
- if (proc_stat == NULL) {
- ERROR("processes plugin: fopen (/proc/stat) failed: %s", STRERRNO);
- return -1;
- }
- while (fgets(buffer, sizeof(buffer), proc_stat) != NULL) {
- int status;
- char *fields[3];
- int fields_num;
- fields_num = strsplit(buffer, fields, STATIC_ARRAY_SIZE(fields));
- if (fields_num != 2)
- continue;
- if (strcmp("processes", fields[0]) != 0)
- continue;
- status = parse_value(fields[1], &value, DS_TYPE_DERIVE);
- if (status == 0)
- value_valid = 1;
- break;
- }
- fclose(proc_stat);
- if (!value_valid)
- return -1;
- ps_submit_fork_rate(value.derive);
- return 0;
- }
- #endif /*KERNEL_LINUX */
- #if KERNEL_SOLARIS
- static char *ps_get_cmdline(long pid,
- char *name __attribute__((unused)), /* {{{ */
- char *buffer, size_t buffer_size) {
- char path[PATH_MAX];
- psinfo_t info;
- ssize_t status;
- snprintf(path, sizeof(path), "/proc/%li/psinfo", pid);
- status = read_file_contents(path, &info, sizeof(info));
- if ((status < 0) || (((size_t)status) != sizeof(info))) {
- ERROR("processes plugin: Unexpected return value "
- "while reading \"%s\": "
- "Returned %zd but expected %" PRIsz ".",
- path, status, buffer_size);
- return NULL;
- }
- sstrncpy(buffer, info.pr_psargs, buffer_size);
- return buffer;
- } /* }}} int ps_get_cmdline */
- /*
- * Reads process information on the Solaris OS. The information comes mainly
- * from
- * /proc/PID/status, /proc/PID/psinfo and /proc/PID/usage
- * The values for input and ouput chars are calculated "by hand"
- * Added a few "solaris" specific process states as well
- */
- static int ps_read_process(long pid, process_entry_t *ps, char *state) {
- char filename[64];
- char f_psinfo[64], f_usage[64];
- char *buffer;
- pstatus_t *myStatus;
- psinfo_t *myInfo;
- prusage_t *myUsage;
- snprintf(filename, sizeof(filename), "/proc/%li/status", pid);
- snprintf(f_psinfo, sizeof(f_psinfo), "/proc/%li/psinfo", pid);
- snprintf(f_usage, sizeof(f_usage), "/proc/%li/usage", pid);
- buffer = calloc(1, sizeof(pstatus_t));
- read_file_contents(filename, buffer, sizeof(pstatus_t));
- myStatus = (pstatus_t *)buffer;
- buffer = calloc(1, sizeof(psinfo_t));
- read_file_contents(f_psinfo, buffer, sizeof(psinfo_t));
- myInfo = (psinfo_t *)buffer;
- buffer = calloc(1, sizeof(prusage_t));
- read_file_contents(f_usage, buffer, sizeof(prusage_t));
- myUsage = (prusage_t *)buffer;
- sstrncpy(ps->name, myInfo->pr_fname, sizeof(myInfo->pr_fname));
- ps->num_lwp = myStatus->pr_nlwp;
- if (myInfo->pr_wstat != 0) {
- ps->num_proc = 0;
- ps->num_lwp = 0;
- *state = (char)'Z';
- sfree(myStatus);
- sfree(myInfo);
- sfree(myUsage);
- return 0;
- } else {
- ps->num_proc = 1;
- ps->num_lwp = myInfo->pr_nlwp;
- }
- /*
- * Convert system time and user time from nanoseconds to microseconds
- * for compatibility with the linux module
- */
- ps->cpu_system_counter = myStatus->pr_stime.tv_nsec / 1000;
- ps->cpu_user_counter = myStatus->pr_utime.tv_nsec / 1000;
- /*
- * Convert rssize from KB to bytes to be consistent w/ the linux module
- */
- ps->vmem_rss = myInfo->pr_rssize * 1024;
- ps->vmem_size = myInfo->pr_size * 1024;
- ps->vmem_minflt_counter = myUsage->pr_minf;
- ps->vmem_majflt_counter = myUsage->pr_majf;
- /*
- * TODO: Data and code segment calculations for Solaris
- */
- ps->vmem_data = -1;
- ps->vmem_code = -1;
- ps->stack_size = myStatus->pr_stksize;
- /*
- * TODO: File descriptor count for Solaris
- */
- ps->num_fd = 0;
- /* Number of memory mappings */
- ps->num_maps = 0;
- /*
- * Calculating input/ouput chars
- * Formula used is total chars / total blocks => chars/block
- * then convert input/output blocks to chars
- */
- ulong_t tot_chars = myUsage->pr_ioch;
- ulong_t tot_blocks = myUsage->pr_inblk + myUsage->pr_oublk;
- ulong_t chars_per_block = 1;
- if (tot_blocks != 0)
- chars_per_block = tot_chars / tot_blocks;
- ps->io_rchar = myUsage->pr_inblk * chars_per_block;
- ps->io_wchar = myUsage->pr_oublk * chars_per_block;
- ps->io_syscr = myUsage->pr_sysc;
- ps->io_syscw = myUsage->pr_sysc;
- ps->io_diskr = -1;
- ps->io_diskw = -1;
- /*
- * TODO: context switch counters for Solaris
- */
- ps->cswitch_vol = -1;
- ps->cswitch_invol = -1;
- /*
- * TODO: Find way of setting BLOCKED and PAGING status
- */
- *state = (char)'R';
- if (myStatus->pr_flags & PR_ASLEEP)
- *state = (char)'S';
- else if (myStatus->pr_flags & PR_STOPPED)
- *state = (char)'T';
- else if (myStatus->pr_flags & PR_DETACH)
- *state = (char)'E';
- else if (myStatus->pr_flags & PR_DAEMON)
- *state = (char)'A';
- else if (myStatus->pr_flags & PR_ISSYS)
- *state = (char)'Y';
- else if (myStatus->pr_flags & PR_ORPHAN)
- *state = (char)'O';
- sfree(myStatus);
- sfree(myInfo);
- sfree(myUsage);
- return 0;
- }
- /*
- * Reads the number of threads created since the last reboot. On Solaris these
- * are retrieved from kstat (module cpu, name sys, class misc, stat nthreads).
- * The result is the sum for all the threads created on each cpu
- */
- static int read_fork_rate(void) {
- extern kstat_ctl_t *kc;
- derive_t result = 0;
- if (kc == NULL)
- return -1;
- for (kstat_t *ksp_chain = kc->kc_chain; ksp_chain != NULL;
- ksp_chain = ksp_chain->ks_next) {
- if ((strcmp(ksp_chain->ks_module, "cpu") == 0) &&
- (strcmp(ksp_chain->ks_name, "sys") == 0) &&
- (strcmp(ksp_chain->ks_class, "misc") == 0)) {
- long long tmp;
- kstat_read(kc, ksp_chain, NULL);
- tmp = get_kstat_value(ksp_chain, "nthreads");
- if (tmp != -1LL)
- result += tmp;
- }
- }
- ps_submit_fork_rate(result);
- return 0;
- }
- #endif /* KERNEL_SOLARIS */
- #if HAVE_THREAD_INFO
- static int mach_get_task_name(task_t t, int *pid, char *name,
- size_t name_max_len) {
- int mib[4];
- struct kinfo_proc kp;
- size_t kp_size;
- mib[0] = CTL_KERN;
- mib[1] = KERN_PROC;
- mib[2] = KERN_PROC_PID;
- if (pid_for_task(t, pid) != KERN_SUCCESS)
- return -1;
- mib[3] = *pid;
- kp_size = sizeof(kp);
- if (sysctl(mib, 4, &kp, &kp_size, NULL, 0) != 0)
- return -1;
- if (name_max_len > (MAXCOMLEN + 1))
- name_max_len = MAXCOMLEN + 1;
- strncpy(name, kp.kp_proc.p_comm, name_max_len - 1);
- name[name_max_len - 1] = '\0';
- DEBUG("pid = %i; name = %s;", *pid, name);
- /* We don't do the special handling for `p_comm == "LaunchCFMApp"' as
- * `top' does it, because it is a lot of work and only used when
- * debugging. -octo */
- return 0;
- }
- #endif /* HAVE_THREAD_INFO */
- /* end of additional functions for KERNEL_LINUX/HAVE_THREAD_INFO */
- /* do actual readings from kernel */
- static int ps_read(void) {
- #if HAVE_THREAD_INFO
- kern_return_t status;
- processor_set_t port_pset_priv;
- task_array_t task_list;
- mach_msg_type_number_t task_list_len;
- int task_pid;
- char task_name[MAXCOMLEN + 1];
- thread_act_array_t thread_list;
- mach_msg_type_number_t thread_list_len;
- thread_basic_info_data_t thread_data;
- mach_msg_type_number_t thread_data_len;
- int running = 0;
- int sleeping = 0;
- int zombies = 0;
- int stopped = 0;
- int blocked = 0;
- procstat_t *ps;
- process_entry_t pse;
- ps_list_reset();
- /*
- * The Mach-concept is a little different from the traditional UNIX
- * concept: All the work is done in threads. Threads are contained in
- * `tasks'. Therefore, `task status' doesn't make much sense, since
- * it's actually a `thread status'.
- * Tasks are assigned to sets of processors, so that's where you go to
- * get a list.
- */
- for (mach_msg_type_number_t pset = 0; pset < pset_list_len; pset++) {
- if ((status = host_processor_set_priv(port_host_self, pset_list[pset],
- &port_pset_priv)) != KERN_SUCCESS) {
- ERROR("host_processor_set_priv …
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