| /* |
| * vmstat_solaris2.c |
| * UCD SNMP module for systemStats section of UCD-SNMP-MIB for SunOS/Solaris |
| * Jochen Kmietsch <kmietsch@jochen.de> |
| * with fixes and additions from the UCD-SNMP community |
| * Uses some ideas from xosview and top |
| * Some comments paraphrased from the SUN man pages |
| * Version 0.1 initial release (Dec 1999) |
| * Version 0.2 added support for multiprocessor machines (Jan 2000) |
| * Version 0.3 some reliability enhancements and compile time fixes (Feb 2000) |
| * Version 0.4 portability issue and raw cpu value support (Jun 2000) |
| * Version 0.5 64-bit Solaris support and new data gathering routine (Aug 2000) |
| * Version 0.6 Memory savings, overroll precautions and lint checks (Aug 2000) |
| * Version 0.7 More raw counters and some cosmetic changes (Jan 2001) |
| * |
| */ |
| |
| /* |
| * To make lint skip the debug code and stop complaining |
| */ |
| #ifdef __lint |
| #define NETSNMP_NO_DEBUGGING 1 |
| #endif |
| |
| /* |
| * Includes start here |
| */ |
| |
| /* |
| * Standard includes |
| */ |
| #include <stdlib.h> |
| #include <unistd.h> |
| #include <sys/types.h> |
| #include <sys/time.h> |
| #include <string.h> |
| |
| /* |
| * kstat and sysinfo structs |
| */ |
| #include <kstat.h> |
| #include <sys/sysinfo.h> |
| |
| #include <net-snmp/net-snmp-config.h> |
| #include <net-snmp/net-snmp-includes.h> |
| #include <net-snmp/agent/net-snmp-agent-includes.h> |
| |
| #include "mibdefs.h" |
| #include "util_funcs/header_generic.h" |
| |
| /* |
| * Header file for this module |
| */ |
| #include "vmstat.h" |
| #include "vmstat_solaris2.h" |
| |
| /* |
| * Includes end here |
| */ |
| |
| |
| /* |
| * Global structures start here |
| */ |
| |
| /* |
| * A structure to save data gathered from the kernel kstat interface to. |
| * We used to have the sys/sysinfo.h cpu_stat_t here but we did not need |
| * all of it, some in a different size and some additional ones so we build |
| * our own |
| */ |
| struct cpu_stat_snapshot { |
| hrtime_t css_time; |
| unsigned int css_cpus; |
| unsigned long long css_swapin; |
| unsigned long long css_swapout; |
| unsigned long long css_blocks_read; |
| unsigned long long css_blocks_write; |
| unsigned long long css_interrupts; |
| unsigned long long css_context_sw; |
| unsigned long long css_cpu[CPU_STATES]; |
| }; |
| |
| /* |
| * Global structures end here |
| */ |
| |
| |
| /* |
| * Global variables start here |
| */ |
| |
| /* |
| * From kstat.h: |
| * Provides access to the kernel statistics library by |
| * initializing a kstat control structure and returning a pointer |
| * to this structure. This pointer must be used as the kc argument in |
| * following function calls from libkstat (here kc is called kstat_fd). |
| * Pointer to structure to be opened with kstat_open in main procedure. |
| * We share this one with memory_solaris2 and kernel_sunos5, where it's |
| * defined. |
| */ |
| extern kstat_ctl_t *kstat_fd; |
| |
| /* |
| * Variables for the calculated values, filled in update_stats |
| * Need to be global since we need them in more than one function |
| */ |
| static ulong swapin; |
| static ulong swapout; |
| static ulong blocks_read; |
| static ulong blocks_write; |
| static ulong interrupts; |
| static ulong context_sw; |
| |
| /* |
| * Since MIB wants CPU_SYSTEM, which is CPU_KERNEL + CPU_WAIT |
| */ |
| static long cpu_perc[CPU_STATES + 1]; |
| |
| /* |
| * How many snapshots we have already taken, needed for the first |
| * POLL_INTERVAL * POLL_VALUES seconds of agent running |
| */ |
| static unsigned int number_of_snapshots; |
| |
| /* |
| * The place to store the snapshots of system data in |
| */ |
| static struct cpu_stat_snapshot snapshot[POLL_VALUES + 1]; |
| |
| /* |
| * And one for the raw counters, which we fill when the raw values are |
| * requested, as opposed to the absolute values, which are taken every |
| * POLL_INTERVAL seconds and calculated over POLL_INTERVAL * POLL_VALUES time |
| */ |
| static struct cpu_stat_snapshot raw_values; |
| |
| /* |
| * Global variables end here |
| */ |
| |
| |
| /* |
| * Functions start here |
| */ |
| |
| /* |
| * Function prototype |
| */ |
| static void update_stats(unsigned int registrationNumber, |
| void *clientarg); |
| static int take_snapshot(struct cpu_stat_snapshot *css); |
| |
| /* |
| * init_vmstat_solaris2 starts here |
| * Init function for this module, from prototype |
| * Defines variables handled by this module, defines root OID for |
| * this module and registers it with the agent |
| */ |
| |
| FindVarMethod var_extensible_vmstat; |
| |
| void |
| init_vmstat_solaris2(void) |
| { |
| |
| /* |
| * Which variables do we service ? |
| */ |
| struct variable2 extensible_vmstat_variables[] = { |
| {MIBINDEX, ASN_INTEGER, NETSNMP_OLDAPI_RONLY, |
| var_extensible_vmstat, 1, {MIBINDEX}}, |
| {ERRORNAME, ASN_OCTET_STR, NETSNMP_OLDAPI_RONLY, |
| var_extensible_vmstat, 1, {ERRORNAME}}, |
| {SWAPIN, ASN_INTEGER, NETSNMP_OLDAPI_RONLY, |
| var_extensible_vmstat, 1, {SWAPIN}}, |
| {SWAPOUT, ASN_INTEGER, NETSNMP_OLDAPI_RONLY, |
| var_extensible_vmstat, 1, {SWAPOUT}}, |
| {IOSENT, ASN_INTEGER, NETSNMP_OLDAPI_RONLY, |
| var_extensible_vmstat, 1, {IOSENT}}, |
| {IORECEIVE, ASN_INTEGER, NETSNMP_OLDAPI_RONLY, |
| var_extensible_vmstat, 1, {IORECEIVE}}, |
| {SYSINTERRUPTS, ASN_INTEGER, NETSNMP_OLDAPI_RONLY, |
| var_extensible_vmstat, 1, {SYSINTERRUPTS}}, |
| {SYSCONTEXT, ASN_INTEGER, NETSNMP_OLDAPI_RONLY, |
| var_extensible_vmstat, 1, {SYSCONTEXT}}, |
| {CPUUSER, ASN_INTEGER, NETSNMP_OLDAPI_RONLY, |
| var_extensible_vmstat, 1, {CPUUSER}}, |
| {CPUSYSTEM, ASN_INTEGER, NETSNMP_OLDAPI_RONLY, |
| var_extensible_vmstat, 1, {CPUSYSTEM}}, |
| {CPUIDLE, ASN_INTEGER, NETSNMP_OLDAPI_RONLY, |
| var_extensible_vmstat, 1, {CPUIDLE}}, |
| {CPURAWUSER, ASN_COUNTER, NETSNMP_OLDAPI_RONLY, |
| var_extensible_vmstat, 1, {CPURAWUSER}}, |
| {CPURAWSYSTEM, ASN_COUNTER, NETSNMP_OLDAPI_RONLY, |
| var_extensible_vmstat, 1, {CPURAWSYSTEM}}, |
| {CPURAWIDLE, ASN_COUNTER, NETSNMP_OLDAPI_RONLY, |
| var_extensible_vmstat, 1, {CPURAWIDLE}}, |
| {CPURAWWAIT, ASN_COUNTER, NETSNMP_OLDAPI_RONLY, |
| var_extensible_vmstat, 1, {CPURAWWAIT}}, |
| {CPURAWKERNEL, ASN_COUNTER, NETSNMP_OLDAPI_RONLY, |
| var_extensible_vmstat, 1, {CPURAWKERNEL}}, |
| {IORAWSENT, ASN_COUNTER, NETSNMP_OLDAPI_RONLY, |
| var_extensible_vmstat, 1, {IORAWSENT}}, |
| {IORAWRECEIVE, ASN_COUNTER, NETSNMP_OLDAPI_RONLY, |
| var_extensible_vmstat, 1, {IORAWRECEIVE}}, |
| /* |
| * Future use: |
| * {ERRORFLAG, ASN_INTEGER, NETSNMP_OLDAPI_RONLY, |
| * var_extensible_vmstat, 1, {ERRORFLAG }}, |
| * {ERRORMSG, ASN_OCTET_STR, NETSNMP_OLDAPI_RONLY, |
| * var_extensible_vmstat, 1, {ERRORMSG }} |
| */ |
| }; |
| |
| /* |
| * Define the OID pointer to the top of the mib tree that we're |
| * registering underneath |
| */ |
| oid vmstat_variables_oid[] = { NETSNMP_UCDAVIS_MIB, 11 }; |
| |
| /* |
| * register ourselves with the agent to handle our mib tree |
| * LINTED Trust me, I know what I'm doing |
| */ |
| REGISTER_MIB("ucd-snmp/vmstat", extensible_vmstat_variables, variable2, |
| vmstat_variables_oid); |
| |
| /* |
| * First check whether shared kstat contol is NULL, if so, try to open our |
| * own. |
| */ |
| if (kstat_fd == NULL) { |
| kstat_fd = kstat_open(); |
| } |
| |
| /* |
| * Then check whether either shared kstat was found or we succeeded in |
| * opening our own. |
| */ |
| if (kstat_fd == NULL) { |
| snmp_log(LOG_ERR, |
| "vmstat_solaris2 (init): kstat_open() failed and no shared kstat control found.\n"); |
| } |
| |
| /* |
| * Start with some useful data |
| */ |
| update_stats(0, NULL); |
| |
| /* |
| * update_stats is run every POLL_INTERVAL seconds using this routine |
| * (see 'man snmp_alarm') |
| * This is only executed once to get some useful data in the beginning |
| */ |
| if (snmp_alarm_register(5, NULL, update_stats, NULL) == 0) { |
| snmp_log(LOG_WARNING, |
| "vmstat_solaris2 (init): snmp_alarm_register failed.\n"); |
| } |
| /* |
| * This is the one that runs update_stats every POLL_INTERVAL seconds |
| */ |
| if (snmp_alarm_register(POLL_INTERVAL, SA_REPEAT, update_stats, NULL) |
| == 0) { |
| snmp_log(LOG_ERR, |
| "vmstat_solaris2 (init): snmp_alarm_register failed, cannot service requests.\n"); |
| } |
| |
| } /* init_vmstat_solaris2 ends here */ |
| |
| /* |
| * Data collection function take_snapshot starts here |
| * Get data from kernel and save into the snapshot strutcs |
| * Argument is the snapshot struct to save to. Global anyway, but looks nicer |
| */ |
| static int |
| take_snapshot(struct cpu_stat_snapshot *css) |
| { |
| /* |
| * Variables start here |
| */ |
| |
| /* |
| * From sys/kstat.h (included from kstat.h): |
| * Pointer to current kstat |
| */ |
| kstat_t *ksp; |
| |
| /* |
| * Counters |
| */ |
| unsigned int cpu_num = 0; |
| |
| /* |
| * High resolution time counter |
| */ |
| hrtime_t current_time; |
| |
| /* |
| * see sys/sysinfo.h, holds CPU data |
| */ |
| cpu_stat_t cs; |
| |
| /* |
| * The usual stuff to count on, err, by |
| */ |
| int i; |
| |
| /* |
| * Variables end here |
| */ |
| |
| /* |
| * Function starts here |
| */ |
| |
| /* |
| * Get time |
| */ |
| current_time = gethrtime(); |
| |
| /* |
| * If we have just gotten the data, return the values from last run (skip if-clause) |
| * This happens on a snmpwalk request. No need to read the kstat again |
| * if we just did it less than 2 seconds ago |
| * Jumps into if-clause either when snapshot is empty or when too old |
| */ |
| |
| if ((css->css_time == 0) |
| || (current_time > css->css_time + 2000000000)) { |
| /* |
| * Make sure we clean up before we put new data into snapshot |
| */ |
| memset(css, 0, sizeof *css); |
| |
| /* |
| * Update timer |
| */ |
| css->css_time = current_time; |
| |
| /* |
| * Look thru all the cpu slots on the machine whether they holds a CPU |
| * and if so, get the data from that CPU |
| * We walk through the whole kstat chain and sum up all the found cpu_stat kstats, |
| * there's one for every CPU in a machine |
| */ |
| for (ksp = kstat_fd->kc_chain; ksp != NULL; ksp = ksp->ks_next) { |
| /* |
| * If we encounter an invalid kstat, skip it and continue with next one |
| */ |
| if (ksp->ks_flags & KSTAT_FLAG_INVALID) { |
| continue; |
| } |
| |
| if (strcmp(ksp->ks_module, "cpu_stat") == 0) { |
| /* |
| * Yeah, we found a CPU. |
| */ |
| cpu_num++; |
| |
| /* |
| * Read data from kstat into cs structure |
| * kstat_fd is the control structure, ksp the kstat we are reading |
| * and cs the buffer we are writing to. |
| */ |
| if ((ksp->ks_type != KSTAT_TYPE_RAW) || |
| (ksp->ks_data_size != sizeof cs) || |
| (kstat_read(kstat_fd, ksp, &cs) == -1)) { |
| snmp_log(LOG_ERR, |
| "vmstat_solaris2 (take_snapshot): could not read cs structure.\n"); |
| return (-1); |
| } |
| |
| /* |
| * Get the data from the cs structure and sum it up in our own structure |
| */ |
| css->css_swapin += |
| (unsigned long long) cs.cpu_vminfo.swapin; |
| css->css_swapout += |
| (unsigned long long) cs.cpu_vminfo.swapout; |
| css->css_blocks_read += |
| (unsigned long long) cs.cpu_sysinfo.bread; |
| css->css_blocks_write += |
| (unsigned long long) cs.cpu_sysinfo.bwrite; |
| css->css_interrupts += |
| (unsigned long long) cs.cpu_sysinfo.intr; |
| css->css_context_sw += |
| (unsigned long long) cs.cpu_sysinfo.pswitch; |
| |
| /* |
| * We need a for-loop for the CPU values |
| */ |
| cs.cpu_sysinfo.cpu[CPU_WAIT] = cs.cpu_sysinfo.wait[W_IO] + |
| cs.cpu_sysinfo.wait[W_PIO]; |
| for (i = 0; i < CPU_STATES; i++) { |
| css->css_cpu[i] += |
| (unsigned long long) cs.cpu_sysinfo.cpu[i]; |
| } /* end for */ |
| } /* end if */ |
| } /* end for */ |
| |
| /* |
| * Increment number of CPUs we gathered data from, for future use |
| */ |
| css->css_cpus = cpu_num; |
| } |
| |
| /* |
| * All engines running at warp speed, no problems (if there are any engines, that is) |
| */ |
| return (cpu_num > 0 ? 0 : -1); |
| } /* take_snapshot ends here */ |
| |
| /* |
| * This gets called every POLL_INTERVAL seconds to update the snapshots. It takes a new snapshot and |
| * drops the oldest one. This way we move the time window so we always take the values over |
| * POLL_INTERVAL * POLL_VALUES seconds and update the data used every POLL_INTERVAL seconds |
| * The alarm timer is in the init function of this module (snmp_alarm_register) |
| * ARGSUSED0 |
| */ |
| static void |
| update_stats(unsigned int registrationNumber, void *clientarg) |
| { |
| /* |
| * The time between the samples we compare |
| */ |
| hrtime_t time_diff; |
| |
| /* |
| * Easier to use these than the snapshots, short hand pointers |
| */ |
| struct cpu_stat_snapshot *css_old, *css_new; |
| |
| /* |
| * The usual stuff to count on, err, by |
| */ |
| int i; |
| |
| /* |
| * Kstat chain id, to check whether kstat chain changed |
| */ |
| kid_t kid; |
| |
| /* |
| * The sum of the CPU ticks that have passed on the different CPU states, so we can calculate |
| * the percentages of each state |
| */ |
| unsigned long long cpu_sum = 0; |
| |
| DEBUGMSGTL(("ucd-snmp/vmstat_solaris2.c:update_stats", |
| "updating stats\n")); |
| |
| /* |
| * Just in case someone added (or removed) some CPUs during operation (or other kstat chain changes) |
| */ |
| kid = kstat_chain_update(kstat_fd); |
| if (kid != 0) { |
| if (kid == -1) { |
| snmp_log(LOG_WARNING, |
| "vmstat_solaris2 (update_stats): Could not update kstat chain.\n"); |
| } else { |
| /* |
| * On some machines this floods the logfile, thus commented out |
| * snmp_log(LOG_INFO, "vmstat_solaris2 (update_stats): Kstat chain changed."); |
| */ |
| } |
| } |
| |
| /* |
| * Take the current snapshot |
| */ |
| if (take_snapshot(&snapshot[0]) == -1) { |
| snmp_log(LOG_WARNING, |
| "vmstat_solaris2 (update_stats): Something went wrong with take_snapshot.\n"); |
| return; |
| } |
| |
| /* |
| * Do we have some data we can use ? An issue right after the start of the agent |
| */ |
| if (number_of_snapshots > 0) { |
| /* |
| * Huh, the number of CPUs changed during run time. That is indeed s.th. worth noting, we |
| * output a humorous (more or less) syslog message and need to retake the snapshots |
| */ |
| if (snapshot[0].css_cpus != snapshot[1].css_cpus) { |
| if (snapshot[0].css_cpus > snapshot[1].css_cpus) { |
| snmp_log(LOG_NOTICE, |
| "vmstat_solaris2 (update_stats): Cool ! Number of CPUs increased, must be hot-pluggable.\n"); |
| } else { |
| snmp_log(LOG_NOTICE, |
| "vmstat_solaris2 (update_stats): Lost at least one CPU, RIP.\n"); |
| } |
| /* |
| * Make all snapshots but the current one invalid |
| */ |
| number_of_snapshots = 1; |
| /* |
| * Move the current one in the "first" [1] slot |
| */ |
| memmove(&snapshot[1], &snapshot[0], sizeof snapshot[0]); |
| /* |
| * Erase the current one |
| */ |
| memset(&snapshot[0], 0, sizeof snapshot[0]); |
| /* |
| * Try to get a new snapshot in five seconds so we can return s.th. useful |
| */ |
| if (snmp_alarm_register(5, NULL, update_stats, NULL) == 0) { |
| snmp_log(LOG_WARNING, |
| "vmstat_solaris2 (update_stats): snmp_alarm_register failed.\n"); |
| } |
| return; |
| } |
| |
| /* |
| * Short hand pointers |
| */ |
| css_new = &snapshot[0]; |
| css_old = &snapshot[number_of_snapshots]; |
| |
| /* |
| * How much time has passed between the snapshots we get the values from ? |
| * Time is in nanoseconds so a few zeros here to juggle with |
| * But the hrtime is not subject to change (s.b. setting the clock), unlike the normal time |
| */ |
| time_diff = |
| (snapshot[0].css_time - |
| snapshot[number_of_snapshots].css_time) / 1000000; |
| if ( time_diff == 0 ) { time_diff = 1; } /* Protect against division-by-zero */ |
| |
| DEBUGMSGTL(("ucd-snmp/vmstat_solaris2.c:update_stats", |
| "time_diff: %lld\n", time_diff)); |
| |
| /* |
| * swapin and swapout are in pages, MIB wants kB/s,so we just need to get kB and seconds |
| * For the others we need to get value per second |
| * getpagesize() returns pagesize in bytes |
| * decided to use sysconf(_SC_PAGESIZE) instead to get around an #ifndef (I don't like those) |
| * that was needed b/c some old Solaris versions don't have getpagesize() |
| */ |
| /* |
| * LINTED cast needed, really |
| */ |
| swapin = |
| (uint_t) ((css_new->css_swapin - |
| css_old->css_swapin) * (hrtime_t) 1000 * |
| sysconf(_SC_PAGESIZE) / 1024 / time_diff); |
| /* |
| * LINTED cast needed, really |
| */ |
| swapout = |
| (uint_t) ((css_new->css_swapout - |
| css_old->css_swapout) * (hrtime_t) 1000 * |
| sysconf(_SC_PAGESIZE) / 1024 / time_diff); |
| /* |
| * LINTED cast needed, really |
| */ |
| blocks_read = |
| (uint_t) ((css_new->css_blocks_read - |
| css_old->css_blocks_read) * (hrtime_t) 1000 / |
| time_diff); |
| /* |
| * LINTED cast needed, really |
| */ |
| blocks_write = |
| (uint_t) ((css_new->css_blocks_write - |
| css_old->css_blocks_write) * (hrtime_t) 1000 / |
| time_diff); |
| /* |
| * LINTED cast needed, really |
| */ |
| interrupts = |
| (uint_t) ((css_new->css_interrupts - |
| css_old->css_interrupts) * (hrtime_t) 1000 / |
| time_diff); |
| /* |
| * LINTED cast needed, really |
| */ |
| context_sw = |
| (uint_t) ((css_new->css_context_sw - |
| css_old->css_context_sw) * (hrtime_t) 1000 / |
| time_diff); |
| |
| /* |
| * Loop thru all the CPU_STATES and get the differences |
| */ |
| for (i = 0; i < CPU_STATES; i++) { |
| cpu_sum += (css_new->css_cpu[i] - css_old->css_cpu[i]); |
| } |
| |
| /* |
| * Now calculate the absolute percentage values |
| * Looks somewhat complicated sometimes but tries to get around using floats to increase speed |
| */ |
| for (i = 0; i < CPU_STATES; i++) { |
| /* |
| * Since we don't return fractions we use + 0.5 to get between 99 and 101 percent adding the values |
| * together, otherwise we would get less than 100 most of the time |
| */ |
| /* |
| * LINTED has to be 'long' |
| */ |
| cpu_perc[i] = |
| (long) (((css_new->css_cpu[i] - |
| css_old->css_cpu[i]) * 100 + |
| (cpu_sum / 2)) / cpu_sum); |
| } |
| |
| /* |
| * As said before, MIB wants CPU_SYSTEM which is CPU_KERNEL + CPU_WAIT |
| */ |
| /* |
| * LINTED has to be 'long' |
| */ |
| cpu_perc[CPU_SYSTEM] = |
| (long) ((((css_new->css_cpu[CPU_KERNEL] - |
| css_old->css_cpu[CPU_KERNEL]) |
| + (css_new->css_cpu[CPU_WAIT] - |
| css_old->css_cpu[CPU_WAIT])) |
| * 100 + (cpu_sum / 2)) / cpu_sum); |
| } |
| |
| /* |
| * Make the current one the first one and move the whole thing one place down |
| */ |
| memmove(&snapshot[1], &snapshot[0], |
| (size_t) (((char *) &snapshot[POLL_VALUES]) - |
| ((char *) &snapshot[0]))); |
| |
| /* |
| * Erase the current one |
| */ |
| memset(&snapshot[0], 0, sizeof snapshot[0]); |
| |
| /* |
| * Only important on start up, we keep track of how many snapshots we have taken so far |
| */ |
| if (number_of_snapshots < POLL_VALUES) { |
| number_of_snapshots++; |
| } |
| } /* update_stats ends here */ |
| |
| /* |
| * *var_extensible_vmstat starts here |
| * The guts of the module, this routine gets called to service a request |
| */ |
| unsigned char * |
| var_extensible_vmstat(struct variable *vp, |
| oid * name, |
| size_t * length, |
| int exact, |
| size_t * var_len, WriteMethod ** write_method) |
| { |
| /* |
| * Needed for returning the values |
| */ |
| static long long_ret; |
| static char errmsg[300]; |
| |
| /* |
| * set to 0 as default |
| */ |
| long_ret = 0; |
| |
| /* |
| * generic check whether the options passed make sense and whether the |
| * right variable is requested |
| */ |
| if (header_generic(vp, name, length, exact, var_len, write_method) != |
| MATCH_SUCCEEDED) { |
| return (NULL); |
| } |
| |
| /* |
| * The function that actually returns s.th. |
| */ |
| switch (vp->magic) { |
| case MIBINDEX: |
| long_ret = 1; |
| return ((u_char *) (&long_ret)); |
| case ERRORNAME: /* dummy name */ |
| sprintf(errmsg, "systemStats"); |
| *var_len = strlen(errmsg); |
| return ((u_char *) (errmsg)); |
| case SWAPIN: |
| return ((u_char *) (&swapin)); |
| case SWAPOUT: |
| return ((u_char *) (&swapout)); |
| case IOSENT: |
| return ((u_char *) (&blocks_write)); |
| case IORECEIVE: |
| return ((u_char *) (&blocks_read)); |
| case SYSINTERRUPTS: |
| return ((u_char *) (&interrupts)); |
| case SYSCONTEXT: |
| return ((u_char *) (&context_sw)); |
| case CPUUSER: |
| return ((u_char *) (&cpu_perc[CPU_USER])); |
| case CPUSYSTEM: |
| return ((u_char *) (&cpu_perc[CPU_SYSTEM])); |
| case CPUIDLE: |
| return ((u_char *) (&cpu_perc[CPU_IDLE])); |
| case CPURAWUSER: |
| take_snapshot(&raw_values); |
| /* |
| * LINTED has to be 'long' |
| */ |
| long_ret = |
| (long) (raw_values.css_cpu[CPU_USER] / raw_values.css_cpus); |
| return ((u_char *) (&long_ret)); |
| /* |
| * We are missing CPURAWNICE, Solaris does not account for this in the kernel so this OID can not |
| * be returned. Also, these values will roll over sooner or later and then return inaccurate data |
| * but the MIB wants Integer32 so we cannot put a counter here |
| * (Has been changed to Counter32 in the latest MIB version!) |
| */ |
| case CPURAWSYSTEM: |
| take_snapshot(&raw_values); |
| /* |
| * LINTED has to be 'long' |
| */ |
| long_ret = |
| (long) ((raw_values.css_cpu[CPU_KERNEL] + |
| raw_values.css_cpu[CPU_WAIT]) / raw_values.css_cpus); |
| return ((u_char *) (&long_ret)); |
| case CPURAWIDLE: |
| take_snapshot(&raw_values); |
| /* |
| * LINTED has to be 'long' |
| */ |
| long_ret = |
| (long) (raw_values.css_cpu[CPU_IDLE] / raw_values.css_cpus); |
| return ((u_char *) (&long_ret)); |
| case CPURAWWAIT: |
| take_snapshot(&raw_values); |
| /* |
| * LINTED has to be 'long' |
| */ |
| long_ret = |
| (long) (raw_values.css_cpu[CPU_WAIT] / raw_values.css_cpus); |
| return ((u_char *) (&long_ret)); |
| case CPURAWKERNEL: |
| take_snapshot(&raw_values); |
| /* |
| * LINTED has to be 'long' |
| */ |
| long_ret = |
| (long) (raw_values.css_cpu[CPU_KERNEL] / raw_values.css_cpus); |
| return ((u_char *) (&long_ret)); |
| case IORAWSENT: |
| long_ret = (long) (raw_values.css_blocks_write); |
| return ((u_char *) (&long_ret)); |
| case IORAWRECEIVE: |
| long_ret = (long) (raw_values.css_blocks_read); |
| return ((u_char *) (&long_ret)); |
| |
| /* |
| * reserved for future use |
| */ |
| /* |
| * case ERRORFLAG: |
| * return((u_char *) (&long_ret)); |
| * case ERRORMSG: |
| * return((u_char *) (&long_ret)); |
| */ |
| default: |
| snmp_log(LOG_ERR, |
| "vmstat_solaris2: Error in request, no match for %d.\n", |
| vp->magic); |
| } |
| return (NULL); |
| } /* *var_extensible_vmstat ends here */ |
| |
| /* |
| * Functions end here |
| */ |
| |
| /* |
| * Program ends here |
| */ |
