X-Git-Url: https://git.octo.it/?p=collectd.git;a=blobdiff_plain;f=src%2Fprocesses.c;h=210e6f1576230a3565fd33971da5be29c659c635;hp=66237dc376be56414b29d62000d8a39c6fd70e1b;hb=633c3966f770e4d46651a2fe219a18d8a9907a9f;hpb=d6021a800b12c89b5a78877af2c5b9abc1a8e609 diff --git a/src/processes.c b/src/processes.c index 66237dc3..210e6f15 100644 --- a/src/processes.c +++ b/src/processes.c @@ -7,6 +7,7 @@ * 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 @@ -24,12 +25,13 @@ * * Authors: * Lyonel Vincent - * Florian octo Forster + * Florian octo Forster * Oleg King * Sebastian Harl * Andrés J. Díaz * Manuel Sanmartin * Clément Stenac + * Cosmin Ioiart **/ #include "collectd.h" @@ -109,6 +111,11 @@ #define MAXARGLN 1024 /* #endif HAVE_PROCINFO_H */ +#elif KERNEL_SOLARIS +# include +# include +/* #endif KERNEL_SOLARIS */ + #else # error "No applicable input method." #endif @@ -117,6 +124,10 @@ # include #endif +#if HAVE_KSTAT_H +# include +#endif + #ifndef ARG_MAX # define ARG_MAX 4096 #endif @@ -216,8 +227,8 @@ int getargs (struct procentry64 *processBuffer, int bufferLen, char *argsBuffer, #endif /* HAVE_PROCINFO_H */ /* 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 */ + * 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; @@ -712,7 +723,7 @@ static void ps_submit_proc_list (procstat_t *ps) } DEBUG ("name = %s; num_proc = %lu; num_lwp = %lu; " - "vmem_size = %lu; vmem_rss = %lu; vmem_data = %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"; " @@ -726,6 +737,26 @@ static void ps_submit_proc_list (procstat_t *ps) ps->io_rchar, ps->io_wchar, ps->io_syscr, ps->io_syscw); } /* void ps_submit_proc_list */ +#if KERNEL_LINUX || KERNEL_SOLARIS +static void ps_submit_fork_rate (derive_t value) +{ + value_t values[1]; + value_list_t vl = VALUE_LIST_INIT; + + values[0].derive = value; + + vl.values = values; + vl.values_len = 1; + sstrncpy(vl.host, hostname_g, sizeof (vl.host)); + 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 (int pid) @@ -780,7 +811,7 @@ static procstat_t *ps_read_vmem (int pid, procstat_t *ps) continue; numfields = strsplit (buffer, fields, - STATIC_ARRAY_SIZE (fields)); + STATIC_ARRAY_SIZE (fields)); if (numfields < 2) continue; @@ -1117,70 +1148,226 @@ static char *ps_get_cmdline (pid_t pid, char *name, char *buf, size_t buf_len) return buf; } /* char *ps_get_cmdline (...) */ -static unsigned long read_fork_rate () +static int read_fork_rate () { FILE *proc_stat; - char buf[1024]; - unsigned long result = 0; - int numfields; - char *fields[3]; + char buffer[1024]; + value_t value; + _Bool value_valid = 0; - proc_stat = fopen("/proc/stat", "r"); - if (proc_stat == NULL) { + proc_stat = fopen ("/proc/stat", "r"); + if (proc_stat == NULL) + { char errbuf[1024]; ERROR ("processes plugin: fopen (/proc/stat) failed: %s", sstrerror (errno, errbuf, sizeof (errbuf))); - return ULONG_MAX; + return (-1); } - while (fgets (buf, sizeof(buf), proc_stat) != NULL) + while (fgets (buffer, sizeof (buffer), proc_stat) != NULL) { - char *endptr; + int status; + char *fields[3]; + int fields_num; - numfields = strsplit(buf, fields, STATIC_ARRAY_SIZE (fields)); - if (numfields != 2) + fields_num = strsplit (buffer, fields, + STATIC_ARRAY_SIZE (fields)); + if (fields_num != 2) continue; if (strcmp ("processes", fields[0]) != 0) continue; - errno = 0; - endptr = NULL; - result = strtoul(fields[1], &endptr, /* base = */ 10); - if ((endptr == fields[1]) || (errno != 0)) { - ERROR ("processes plugin: Cannot parse fork rate: %s", - fields[1]); - result = ULONG_MAX; - break; - } + status = parse_value (fields[1], &value, DS_TYPE_DERIVE); + if (status == 0) + value_valid = 1; break; } - fclose(proc_stat); - return result; + if (!value_valid) + return (-1); + + ps_submit_fork_rate (value.derive); + return (0); } +#endif /*KERNEL_LINUX */ -static void ps_submit_fork_rate (unsigned long value) +#if KERNEL_SOLARIS +static const char *ps_get_cmdline (pid_t pid, /* {{{ */ + char *buffer, size_t buffer_size) { - value_t values[1]; - value_list_t vl = VALUE_LIST_INIT; + char path[PATH_MAX]; + psinfo_t info; + int status; - values[0].derive = (derive_t) value; + snprintf(path, sizeof (path), "/proc/%i/psinfo", pid); - vl.values = values; - vl.values_len = 1; - sstrncpy (vl.host, hostname_g, sizeof (vl.host)); - 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)); + status = read_file_contents (path, (void *) &info, sizeof (info)); + if (status != ((int) buffer_size)) + { + ERROR ("processes plugin: Unexpected return value " + "while reading \"%s\": " + "Returned %i but expected %zu.", + path, status, buffer_size); + return (NULL); + } - plugin_dispatch_values (&vl); + info.pr_psargs[sizeof (info.pr_psargs) - 1] = 0; + 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(int pid, procstat_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/%i/status", pid); + snprintf(f_psinfo, sizeof (f_psinfo), "/proc/%i/psinfo", pid); + snprintf(f_usage, sizeof (f_usage), "/proc/%i/usage", pid); + + + buffer = malloc(sizeof (pstatus_t)); + memset(buffer, 0, sizeof (pstatus_t)); + read_file_contents(filename, buffer, sizeof (pstatus_t)); + myStatus = (pstatus_t *) buffer; + + buffer = malloc(sizeof (psinfo_t)); + memset(buffer, 0, sizeof(psinfo_t)); + read_file_contents(f_psinfo, buffer, sizeof (psinfo_t)); + myInfo = (psinfo_t *) buffer; + + buffer = malloc(sizeof (prusage_t)); + memset(buffer, 0, 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'; + 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; + + /* + * 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; + + + /* + * 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); } -#endif /* KERNEL_LINUX */ +/* + * 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() +{ + extern kstat_ctl_t *kc; + kstat_t *ksp_chain = NULL; + derive_t result = 0; + + if (kc == NULL) + return (-1); + + for (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) @@ -1506,8 +1693,6 @@ static int ps_read (void) procstat_entry_t pse; char state; - unsigned long fork_rate; - procstat_t *ps_ptr; running = sleeping = zombies = stopped = paging = blocked = 0; @@ -1589,9 +1774,7 @@ 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); - fork_rate = read_fork_rate(); - if (fork_rate != ULONG_MAX) - ps_submit_fork_rate(fork_rate); + read_fork_rate(); /* #endif KERNEL_LINUX */ #elif HAVE_LIBKVM_GETPROCS && HAVE_STRUCT_KINFO_PROC_FREEBSD @@ -1605,9 +1788,9 @@ static int ps_read (void) kvm_t *kd; char errbuf[1024]; - struct kinfo_proc *procs; /* array of processes */ + struct kinfo_proc *procs; /* array of processes */ struct kinfo_proc *proc_ptr = NULL; - int count; /* returns number of processes */ + int count; /* returns number of processes */ int i; procstat_t *ps_ptr; @@ -1778,7 +1961,7 @@ static int ps_read (void) if (procentry[i].pi_pid == 0) cmdline = "swapper"; cargs = cmdline; - } + } else { if (getargs(&procentry[i], sizeof(struct procentry64), arglist, MAXARGLN) >= 0) @@ -1870,7 +2053,118 @@ static int ps_read (void) for (ps = list_head_g; ps != NULL; ps = ps->next) ps_submit_proc_list (ps); -#endif /* HAVE_PROCINFO_H */ +/* #endif HAVE_PROCINFO_H */ + +#elif KERNEL_SOLARIS + /* + * The Solaris section adds a few more process states and removes some + * process states compared to linux. Most notably there is no "PAGING" + * and "BLOCKED" state for a process. The rest is similar to the linux + * code. + */ + int running = 0; + int sleeping = 0; + int zombies = 0; + int stopped = 0; + int detached = 0; + int daemon = 0; + int system = 0; + int orphan = 0; + + struct dirent *ent; + DIR *proc; + + int status; + procstat_t *ps_ptr; + char state; + + char cmdline[PRARGSZ]; + + ps_list_reset (); + + proc = opendir ("/proc"); + if (proc == NULL) + return (-1); + + while ((ent = readdir(proc)) != NULL) + { + int pid; + struct procstat ps; + procstat_entry_t pse; + + if (!isdigit ((int) ent->d_name[0])) + continue; + + if ((pid = atoi (ent->d_name)) < 1) + continue; + + status = ps_read_process (pid, &ps, &state); + if (status != 0) + { + DEBUG("ps_read_process failed: %i", status); + continue; + } + + pse.id = pid; + pse.age = 0; + + pse.num_proc = ps.num_proc; + pse.num_lwp = ps.num_lwp; + pse.vmem_size = ps.vmem_size; + pse.vmem_rss = ps.vmem_rss; + pse.vmem_data = ps.vmem_data; + pse.vmem_code = ps.vmem_code; + pse.stack_size = ps.stack_size; + + pse.vmem_minflt = 0; + pse.vmem_minflt_counter = ps.vmem_minflt_counter; + pse.vmem_majflt = 0; + pse.vmem_majflt_counter = ps.vmem_majflt_counter; + + pse.cpu_user = 0; + pse.cpu_user_counter = ps.cpu_user_counter; + pse.cpu_system = 0; + pse.cpu_system_counter = ps.cpu_system_counter; + + pse.io_rchar = ps.io_rchar; + pse.io_wchar = ps.io_wchar; + pse.io_syscr = ps.io_syscr; + pse.io_syscw = ps.io_syscw; + + switch (state) + { + case 'R': running++; break; + case 'S': sleeping++; break; + case 'E': detached++; break; + case 'Z': zombies++; break; + case 'T': stopped++; break; + case 'A': daemon++; break; + case 'Y': system++; break; + case 'O': orphan++; break; + } + + + ps_list_add (ps.name, + ps_get_cmdline ((pid_t) pid, + cmdline, sizeof (cmdline)), + &pse); + } /* while(readdir) */ + closedir (proc); + + ps_submit_state ("running", running); + ps_submit_state ("sleeping", sleeping); + ps_submit_state ("zombies", zombies); + ps_submit_state ("stopped", stopped); + ps_submit_state ("detached", detached); + ps_submit_state ("daemon", daemon); + ps_submit_state ("system", system); + ps_submit_state ("orphan", orphan); + + for (ps_ptr = list_head_g; ps_ptr != NULL; ps_ptr = ps_ptr->next) + ps_submit_proc_list (ps_ptr); + + read_fork_rate(); +#endif /* KERNEL_SOLARIS */ return (0); } /* int ps_read */