X-Git-Url: https://git.octo.it/?a=blobdiff_plain;f=src%2Fprocesses.c;h=f229804d95121de08a421ba8f8f30b39feb43a8a;hb=7471e073bff7c9f2542bc1c8ce639b85c5498ba7;hp=c8376812445fce298cd37bd21ed2afad3a2d5e3d;hpb=714644fb443eb2dc8fd8c683cae171caef40cf7a;p=collectd.git diff --git a/src/processes.c b/src/processes.c index c8376812..f229804d 100644 --- a/src/processes.c +++ b/src/processes.c @@ -1,7 +1,8 @@ /** * collectd - src/processes.c * Copyright (C) 2005 Lyonel Vincent - * Copyright (C) 2006-2007 Florian Forster (Mach code) + * Copyright (C) 2006-2008 Florian Forster (Mach code) + * Copyright (C) 2008 Oleg King * * 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 @@ -20,6 +21,7 @@ * Authors: * Lyonel Vincent * Florian octo Forster + * Oleg King **/ #include "collectd.h" @@ -82,18 +84,32 @@ # endif /* #endif KERNEL_LINUX */ +#elif HAVE_LIBKVM_GETPROCS +# include +# include +# include +# if HAVE_SYS_SYSCTL_H +# include +# endif +/* #endif HAVE_LIBKVM_GETPROCS */ + #else # error "No applicable input method." #endif +#if HAVE_REGEX_H +# include +#endif + #define BUFSIZE 256 static const char *config_keys[] = { "Process", + "ProcessMatch", NULL }; -static int config_keys_num = 1; +static int config_keys_num = STATIC_ARRAY_SIZE (config_keys); typedef struct procstat_entry_s { @@ -121,6 +137,9 @@ typedef struct procstat_entry_s typedef struct procstat { char name[PROCSTAT_NAME_LEN]; +#if HAVE_REGEX_H + regex_t *re; +#endif unsigned long num_proc; unsigned long num_lwp; @@ -148,22 +167,77 @@ static mach_msg_type_number_t pset_list_len; #elif KERNEL_LINUX static long pagesize_g; -#endif /* KERNEL_LINUX */ +/* #endif KERNEL_LINUX */ -static void ps_list_register (const char *name) +#elif HAVE_LIBKVM_GETPROCS +/* no global variables */ +#endif /* HAVE_LIBKVM_GETPROCS */ + +/* 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 void ps_list_register (const char *name, const char *regexp) { procstat_t *new; procstat_t *ptr; + int status; - if ((new = (procstat_t *) malloc (sizeof (procstat_t))) == NULL) + new = (procstat_t *) malloc (sizeof (procstat_t)); + if (new == NULL) + { + ERROR ("processes plugin: ps_list_register: malloc failed."); return; + } memset (new, 0, sizeof (procstat_t)); - strncpy (new->name, name, PROCSTAT_NAME_LEN); + sstrncpy (new->name, name, sizeof (new->name)); + +#if HAVE_REGEX_H + if (regexp != NULL) + { + DEBUG ("ProcessMatch: adding \"%s\" as criteria to process %s.", regexp, name); + new->re = (regex_t *) malloc (sizeof (regex_t)); + if (new->re == NULL) + { + ERROR ("processes plugin: ps_list_register: malloc failed."); + sfree (new); + return; + } + status = regcomp (new->re, regexp, REG_EXTENDED | REG_NOSUB); + if (status != 0) + { + DEBUG ("ProcessMatch: compiling the regular expression \"%s\" failed.", regexp); + sfree(new->re); + return; + } + } +#else + if (regexp != NULL) + { + ERROR ("processes plugin: ps_list_register: " + "Regular expression \"%s\" found in config " + "file, but support for regular expressions " + "has been dispabled at compile time.", + regexp); + sfree (new); + return; + } +#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."); + sfree (new->re); + sfree (new); return; + } + if (ptr->next == NULL) break; } @@ -172,20 +246,40 @@ static void ps_list_register (const char *name) list_head_g = new; else ptr->next = new; -} +} /* void ps_list_register */ -static procstat_t *ps_list_search (const char *name) +/* try to match name against entry, returns 1 if success */ +static int ps_list_match (const char *name, const char *cmdline, procstat_t *ps) { - procstat_t *ptr; +#if HAVE_REGEX_H + if (ps->re != NULL) + { + int status; + const char *str; - for (ptr = list_head_g; ptr != NULL; ptr = ptr->next) - if (strcmp (ptr->name, name) == 0) - break; + str = cmdline; + if ((str == NULL) || (str[0] == 0)) + str = name; - return (ptr); -} + 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_list_add (const char *name, procstat_entry_t *entry) +/* add process entry to 'instances' of process 'name' (or refresh it) */ +static void ps_list_add (const char *name, const char *cmdline, procstat_entry_t *entry) { procstat_t *ps; procstat_entry_t *pse; @@ -193,115 +287,119 @@ static void ps_list_add (const char *name, procstat_entry_t *entry) if (entry->id == 0) return; - if ((ps = ps_list_search (name)) == NULL) - return; - - 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)) + for (ps = list_head_g; ps != NULL; ps = ps->next) { - procstat_entry_t *new; + if ((ps_list_match (name, cmdline, ps)) == 0) + continue; - new = (procstat_entry_t *) malloc (sizeof (procstat_entry_t)); - if (new == NULL) - return; - memset (new, 0, sizeof (procstat_entry_t)); - new->id = entry->id; + for (pse = ps->instances; pse != NULL; pse = pse->next) + if ((pse->id == entry->id) || (pse->next == NULL)) + break; - if (pse == NULL) - ps->instances = new; - else - pse->next = new; - - pse = new; - } + if ((pse == NULL) || (pse->id != entry->id)) + { + procstat_entry_t *new; + + new = (procstat_entry_t *) malloc (sizeof (procstat_entry_t)); + if (new == NULL) + return; + memset (new, 0, sizeof (procstat_entry_t)); + new->id = entry->id; + + if (pse == NULL) + ps->instances = new; + else + pse->next = new; - pse->age = 0; - pse->num_proc = entry->num_proc; - pse->num_lwp = entry->num_lwp; - pse->vmem_rss = entry->vmem_rss; + pse = new; + } - ps->num_proc += pse->num_proc; - ps->num_lwp += pse->num_lwp; - ps->vmem_rss += pse->vmem_rss; + pse->age = 0; + pse->num_proc = entry->num_proc; + pse->num_lwp = entry->num_lwp; + pse->vmem_rss = entry->vmem_rss; - if ((entry->vmem_minflt_counter == 0) - && (entry->vmem_majflt_counter == 0)) - { - pse->vmem_minflt_counter += entry->vmem_minflt; - pse->vmem_minflt = entry->vmem_minflt; + ps->num_proc += pse->num_proc; + ps->num_lwp += pse->num_lwp; + ps->vmem_rss += pse->vmem_rss; - pse->vmem_majflt_counter += entry->vmem_majflt; - pse->vmem_majflt = entry->vmem_majflt; - } - else - { - if (entry->vmem_minflt_counter < pse->vmem_minflt_counter) + if ((entry->vmem_minflt_counter == 0) + && (entry->vmem_majflt_counter == 0)) { - pse->vmem_minflt = entry->vmem_minflt_counter - + (ULONG_MAX - pse->vmem_minflt_counter); - } - else - { - pse->vmem_minflt = entry->vmem_minflt_counter - pse->vmem_minflt_counter; - } - pse->vmem_minflt_counter = entry->vmem_minflt_counter; + pse->vmem_minflt_counter += entry->vmem_minflt; + pse->vmem_minflt = entry->vmem_minflt; - if (entry->vmem_majflt_counter < pse->vmem_majflt_counter) - { - pse->vmem_majflt = entry->vmem_majflt_counter - + (ULONG_MAX - pse->vmem_majflt_counter); + pse->vmem_majflt_counter += entry->vmem_majflt; + pse->vmem_majflt = entry->vmem_majflt; } else { - pse->vmem_majflt = entry->vmem_majflt_counter - pse->vmem_majflt_counter; + if (entry->vmem_minflt_counter < pse->vmem_minflt_counter) + { + pse->vmem_minflt = entry->vmem_minflt_counter + + (ULONG_MAX - pse->vmem_minflt_counter); + } + else + { + pse->vmem_minflt = entry->vmem_minflt_counter - pse->vmem_minflt_counter; + } + pse->vmem_minflt_counter = entry->vmem_minflt_counter; + + if (entry->vmem_majflt_counter < pse->vmem_majflt_counter) + { + pse->vmem_majflt = entry->vmem_majflt_counter + + (ULONG_MAX - pse->vmem_majflt_counter); + } + else + { + pse->vmem_majflt = entry->vmem_majflt_counter - pse->vmem_majflt_counter; + } + pse->vmem_majflt_counter = entry->vmem_majflt_counter; } - pse->vmem_majflt_counter = entry->vmem_majflt_counter; - } - - ps->vmem_minflt_counter += pse->vmem_minflt; - ps->vmem_majflt_counter += pse->vmem_majflt; - if ((entry->cpu_user_counter == 0) - && (entry->cpu_system_counter == 0)) - { - pse->cpu_user_counter += entry->cpu_user; - pse->cpu_user = entry->cpu_user; + ps->vmem_minflt_counter += pse->vmem_minflt; + ps->vmem_majflt_counter += pse->vmem_majflt; - pse->cpu_system_counter += entry->cpu_system; - pse->cpu_system = entry->cpu_system; - } - else - { - if (entry->cpu_user_counter < pse->cpu_user_counter) + if ((entry->cpu_user_counter == 0) + && (entry->cpu_system_counter == 0)) { - pse->cpu_user = entry->cpu_user_counter - + (ULONG_MAX - pse->cpu_user_counter); - } - else - { - pse->cpu_user = entry->cpu_user_counter - pse->cpu_user_counter; - } - pse->cpu_user_counter = entry->cpu_user_counter; + pse->cpu_user_counter += entry->cpu_user; + pse->cpu_user = entry->cpu_user; - if (entry->cpu_system_counter < pse->cpu_system_counter) - { - pse->cpu_system = entry->cpu_system_counter - + (ULONG_MAX - pse->cpu_system_counter); + pse->cpu_system_counter += entry->cpu_system; + pse->cpu_system = entry->cpu_system; } else { - pse->cpu_system = entry->cpu_system_counter - pse->cpu_system_counter; + if (entry->cpu_user_counter < pse->cpu_user_counter) + { + pse->cpu_user = entry->cpu_user_counter + + (ULONG_MAX - pse->cpu_user_counter); + } + else + { + pse->cpu_user = entry->cpu_user_counter - pse->cpu_user_counter; + } + pse->cpu_user_counter = entry->cpu_user_counter; + + if (entry->cpu_system_counter < pse->cpu_system_counter) + { + pse->cpu_system = entry->cpu_system_counter + + (ULONG_MAX - pse->cpu_system_counter); + } + else + { + pse->cpu_system = entry->cpu_system_counter - pse->cpu_system_counter; + } + pse->cpu_system_counter = entry->cpu_system_counter; } - pse->cpu_system_counter = entry->cpu_system_counter; - } - ps->cpu_user_counter += pse->cpu_user; - ps->cpu_system_counter += pse->cpu_system; + ps->cpu_user_counter += pse->cpu_user; + ps->cpu_system_counter += pse->cpu_system; + } } +/* remove old entries from instances of processes in list_head_g */ static void ps_list_reset (void) { procstat_t *ps; @@ -347,11 +445,31 @@ static void ps_list_reset (void) } /* for (ps = list_head_g; ps != NULL; ps = ps->next) */ } +/* put all pre-defined 'Process' names from config to list_head_g tree */ static int ps_config (const char *key, const char *value) { if (strcasecmp (key, "Process") == 0) { - ps_list_register (value); + ps_list_register (value, NULL); + } + else if (strcasecmp (key, "ProcessMatch") == 0) + { + char *new_val; + char *fields[3]; + int fields_num; + + new_val = strdup (value); + if (new_val == NULL) + return (1); + fields_num = strsplit (new_val, fields, + STATIC_ARRAY_SIZE (fields)); + if (fields_num != 2) + { + sfree (new_val); + return (1); + } + ps_list_register (fields[0], fields[1]); + sfree (new_val); } else { @@ -394,11 +512,16 @@ static int ps_init (void) pagesize_g = sysconf(_SC_PAGESIZE); DEBUG ("pagesize_g = %li; CONFIG_HZ = %i;", pagesize_g, CONFIG_HZ); -#endif /* KERNEL_LINUX */ +/* #endif KERNEL_LINUX */ + +#elif HAVE_LIBKVM_GETPROCS +/* no initialization */ +#endif /* HAVE_LIBKVM_GETPROCS */ 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_t values[1]; @@ -412,11 +535,13 @@ static void ps_submit_state (const char *state, double value) sstrncpy (vl.host, hostname_g, sizeof (vl.host)); sstrncpy (vl.plugin, "processes", sizeof (vl.plugin)); sstrncpy (vl.plugin_instance, "", sizeof (vl.plugin_instance)); - strncpy (vl.type_instance, state, sizeof (vl.type_instance)); + sstrncpy (vl.type, "ps_state", sizeof (vl.type)); + sstrncpy (vl.type_instance, state, sizeof (vl.type_instance)); - plugin_dispatch_values ("ps_state", &vl); + 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_t values[2]; @@ -427,26 +552,30 @@ static void ps_submit_proc_list (procstat_t *ps) vl.time = time (NULL); sstrncpy (vl.host, hostname_g, sizeof (vl.host)); sstrncpy (vl.plugin, "processes", sizeof (vl.plugin)); - strncpy (vl.plugin_instance, ps->name, sizeof (vl.plugin_instance)); + sstrncpy (vl.plugin_instance, ps->name, sizeof (vl.plugin_instance)); + sstrncpy (vl.type, "ps_rss", sizeof (vl.type)); vl.values[0].gauge = ps->vmem_rss; vl.values_len = 1; - plugin_dispatch_values ("ps_rss", &vl); + plugin_dispatch_values (&vl); + sstrncpy (vl.type, "ps_cputime", sizeof (vl.type)); vl.values[0].counter = ps->cpu_user_counter; vl.values[1].counter = ps->cpu_system_counter; vl.values_len = 2; - plugin_dispatch_values ("ps_cputime", &vl); + 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 ("ps_count", &vl); + plugin_dispatch_values (&vl); + sstrncpy (vl.type, "ps_pagefaults", sizeof (vl.type)); vl.values[0].counter = ps->vmem_minflt_counter; vl.values[1].counter = ps->vmem_majflt_counter; vl.values_len = 2; - plugin_dispatch_values ("ps_pagefaults", &vl); + plugin_dispatch_values (&vl); DEBUG ("name = %s; num_proc = %lu; num_lwp = %lu; vmem_rss = %lu; " "vmem_minflt_counter = %lu; vmem_majflt_counter = %lu; " @@ -456,6 +585,7 @@ static void ps_submit_proc_list (procstat_t *ps) ps->cpu_user_counter, ps->cpu_system_counter); } /* void ps_submit_proc_list */ +/* ------- additional functions for KERNEL_LINUX/HAVE_THREAD_INFO ------- */ #if KERNEL_LINUX static int *ps_read_tasks (int pid) { @@ -467,8 +597,7 @@ static int *ps_read_tasks (int pid) DIR *dh; struct dirent *ent; - snprintf (dirname, 64, "/proc/%i/task", pid); - dirname[63] = '\0'; + ssnprintf (dirname, sizeof (dirname), "/proc/%i/task", pid); if ((dh = opendir (dirname)) == NULL) { @@ -523,7 +652,6 @@ int ps_read_process (int pid, procstat_t *ps, char *state) { char filename[64]; char buffer[1024]; - FILE *fh; char *fields[64]; char fields_len; @@ -540,19 +668,12 @@ int ps_read_process (int pid, procstat_t *ps, char *state) memset (ps, 0, sizeof (procstat_t)); - snprintf (filename, 64, "/proc/%i/stat", pid); - filename[63] = '\0'; + ssnprintf (filename, sizeof (filename), "/proc/%i/stat", pid); - if ((fh = fopen (filename, "r")) == NULL) + i = read_file_contents (filename, buffer, sizeof(buffer) - 1); + if (i <= 0) return (-1); - - if (fgets (buffer, 1024, fh) == NULL) - { - fclose (fh); - return (-1); - } - - fclose (fh); + buffer[i] = 0; fields_len = strsplit (buffer, fields, 64); if (fields_len < 24) @@ -663,7 +784,9 @@ static int mach_get_task_name (task_t t, int *pid, char *name, size_t name_max_l 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 @@ -731,7 +854,13 @@ static int ps_read (void) if (mach_get_task_name (task_list[task], &task_pid, task_name, PROCSTAT_NAME_LEN) == 0) - ps = ps_list_search (task_name); + { + /* search for at least one match */ + for (ps = list_head_g; ps != NULL; ps = ps->next) + /* FIXME: cmdline should be here instead of NULL */ + if (ps_list_match (task_name, NULL, ps) == 1) + break; + } /* Collect more detailed statistics for this process */ if (ps != NULL) @@ -889,7 +1018,8 @@ static int ps_read (void) } if (ps != NULL) - ps_list_add (task_name, &pse); + /* FIXME: cmdline should be here instead of NULL */ + ps_list_add (task_name, NULL, &pse); } /* for (task_list) */ if ((status = vm_deallocate (port_task_self, @@ -992,7 +1122,8 @@ static int ps_read (void) case 'W': paging++; break; } - ps_list_add (ps.name, &pse); + /* FIXME: cmdline should be here instead of NULL */ + ps_list_add (ps.name, NULL, &pse); } closedir (proc); @@ -1006,7 +1137,129 @@ static int ps_read (void) for (ps_ptr = list_head_g; ps_ptr != NULL; ps_ptr = ps_ptr->next) ps_submit_proc_list (ps_ptr); -#endif /* KERNEL_LINUX */ +/* #endif KERNEL_LINUX */ + +#elif HAVE_LIBKVM_GETPROCS + int running = 0; + int sleeping = 0; + int zombies = 0; + int stopped = 0; + int blocked = 0; + int idle = 0; + int wait = 0; + + kvm_t *kd; + char errbuf[1024]; + char cmdline[ARG_MAX]; + char *cmdline_ptr; + struct kinfo_proc *procs; /* array of processes */ + char **argv; + int count; /* returns number of processes */ + int i; + + procstat_t *ps_ptr; + procstat_entry_t pse; + + ps_list_reset (); + + /* Open the kvm interface, get a descriptor */ + kd = kvm_open (NULL, NULL, NULL, 0, errbuf); + if (kd == NULL) + { + ERROR ("processes plugin: Cannot open kvm interface: %s", + errbuf); + return (0); + } + + /* Get the list of processes. */ + procs = kvm_getprocs(kd, KERN_PROC_ALL, 0, &count); + if (procs == NULL) + { + kvm_close (kd); + ERROR ("processes plugin: Cannot get kvm processes list: %s", + kvm_geterr(kd)); + return (0); + } + + /* Iterate through the processes in kinfo_proc */ + for (i = 0; i < count; i++) + { + /* retrieve the arguments */ + cmdline[0] = 0; + cmdline_ptr = NULL; + + argv = kvm_getargv (kd, (const struct kinfo_proc *) &(procs[i]), 0); + if (argv != NULL) + { + int status; + int argc; + + argc = 0; + while (argv[argc] != NULL) + argc++; + + status = strjoin (cmdline, sizeof (cmdline), + argv, argc, " "); + + if (status < 0) + { + WARNING ("processes plugin: Command line did " + "not fit into buffer."); + } + else + { + cmdline_ptr = &cmdline[0]; + } + } + + pse.id = procs[i].ki_pid; + pse.age = 0; + + pse.num_proc = 1; + pse.num_lwp = procs[i].ki_numthreads; + + pse.vmem_rss = procs[i].ki_rssize * getpagesize(); + pse.vmem_minflt = 0; + pse.vmem_minflt_counter = procs[i].ki_rusage.ru_minflt; + pse.vmem_majflt = 0; + pse.vmem_majflt_counter = procs[i].ki_rusage.ru_majflt; + + pse.cpu_user = 0; + pse.cpu_user_counter = procs[i].ki_rusage.ru_utime.tv_sec + * 1000 + + procs[i].ki_rusage.ru_utime.tv_usec; + pse.cpu_system = 0; + pse.cpu_system_counter = procs[i].ki_rusage.ru_stime.tv_sec + * 1000 + + procs[i].ki_rusage.ru_stime.tv_usec; + + switch (procs[i].ki_stat) + { + case SSTOP: stopped++; break; + case SSLEEP: sleeping++; break; + case SRUN: running++; break; + case SIDL: idle++; break; + case SWAIT: wait++; break; + case SLOCK: blocked++; break; + case SZOMB: zombies++; break; + } + + ps_list_add (procs[i].ki_comm, cmdline_ptr, &pse); + } + + kvm_close(kd); + + ps_submit_state ("running", running); + ps_submit_state ("sleeping", sleeping); + ps_submit_state ("zombies", zombies); + ps_submit_state ("stopped", stopped); + ps_submit_state ("blocked", blocked); + ps_submit_state ("idle", idle); + ps_submit_state ("wait", wait); + + for (ps_ptr = list_head_g; ps_ptr != NULL; ps_ptr = ps_ptr->next) + ps_submit_proc_list (ps_ptr); +#endif /* HAVE_LIBKVM_GETPROCS */ return (0); } /* int ps_read */