mirror of https://github.com/htop-dev/htop.git
341 lines
12 KiB
C
341 lines
12 KiB
C
/*
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htop - SolarisMachine.c
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(C) 2014 Hisham H. Muhammad
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(C) 2017,2018 Guy M. Broome
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Released under the GNU GPLv2+, see the COPYING file
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in the source distribution for its full text.
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*/
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#include "config.h" // IWYU pragma: keep
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#include "solaris/SolarisMachine.h"
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#include <unistd.h>
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#include <stdlib.h>
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#include <sys/types.h>
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#include <sys/user.h>
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#include <limits.h>
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#include <string.h>
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#include <procfs.h>
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#include <errno.h>
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#include <pwd.h>
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#include <math.h>
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#include <time.h>
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#include "CRT.h"
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#include "solaris/Platform.h"
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static void SolarisMachine_updateCPUcount(SolarisMachine* this) {
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Machine* super = &this->super;
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long int s;
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bool change = false;
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s = sysconf(_SC_NPROCESSORS_CONF);
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if (s < 1)
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CRT_fatalError("Cannot get existing CPU count by sysconf(_SC_NPROCESSORS_CONF)");
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if (s != super->existingCPUs) {
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if (s == 1) {
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this->cpus = xRealloc(this->cpus, sizeof(CPUData));
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this->cpus[0].online = true;
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} else {
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this->cpus = xReallocArray(this->cpus, s + 1, sizeof(CPUData));
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this->cpus[0].online = true; /* average is always "online" */
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for (int i = 1; i < s + 1; i++) {
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this->cpus[i].online = false;
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}
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}
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change = true;
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super->existingCPUs = s;
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}
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s = sysconf(_SC_NPROCESSORS_ONLN);
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if (s < 1)
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CRT_fatalError("Cannot get active CPU count by sysconf(_SC_NPROCESSORS_ONLN)");
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if (s != super->activeCPUs) {
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change = true;
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super->activeCPUs = s;
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}
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if (change) {
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kstat_close(this->kd);
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this->kd = kstat_open();
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if (!this->kd)
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CRT_fatalError("Cannot open kstat handle");
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}
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}
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static void SolarisMachine_scanCPUTime(SolarisMachine* this) {
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Machine* super = &this->super;
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unsigned int activeCPUs = super->activeCPUs;
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unsigned int existingCPUs = super->existingCPUs;
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kstat_t* cpuinfo = NULL;
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kstat_named_t* idletime = NULL;
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kstat_named_t* intrtime = NULL;
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kstat_named_t* krnltime = NULL;
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kstat_named_t* usertime = NULL;
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kstat_named_t* cpu_freq = NULL;
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double idlebuf = 0;
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double intrbuf = 0;
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double krnlbuf = 0;
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double userbuf = 0;
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int arrskip = 0;
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assert(existingCPUs > 0);
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assert(this->kd);
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if (existingCPUs > 1) {
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// Store values for the stats loop one extra element up in the array
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// to leave room for the average to be calculated afterwards
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arrskip++;
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}
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// Calculate per-CPU statistics first
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for (unsigned int i = 0; i < existingCPUs; i++) {
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CPUData* cpuData = &(this->cpus[i + arrskip]);
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if ((cpuinfo = kstat_lookup_wrapper(this->kd, "cpu", i, "sys")) != NULL) {
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cpuData->online = true;
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if (kstat_read(this->kd, cpuinfo, NULL) != -1) {
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idletime = kstat_data_lookup_wrapper(cpuinfo, "cpu_nsec_idle");
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intrtime = kstat_data_lookup_wrapper(cpuinfo, "cpu_nsec_intr");
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krnltime = kstat_data_lookup_wrapper(cpuinfo, "cpu_nsec_kernel");
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usertime = kstat_data_lookup_wrapper(cpuinfo, "cpu_nsec_user");
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}
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} else {
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cpuData->online = false;
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continue;
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}
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assert( (idletime != NULL) && (intrtime != NULL)
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&& (krnltime != NULL) && (usertime != NULL) );
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if (super->settings->showCPUFrequency) {
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if ((cpuinfo = kstat_lookup_wrapper(this->kd, "cpu_info", i, NULL)) != NULL) {
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if (kstat_read(this->kd, cpuinfo, NULL) != -1) {
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cpu_freq = kstat_data_lookup_wrapper(cpuinfo, "current_clock_Hz");
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}
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}
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assert( cpu_freq != NULL );
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}
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uint64_t totaltime = (idletime->value.ui64 - cpuData->lidle)
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+ (intrtime->value.ui64 - cpuData->lintr)
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+ (krnltime->value.ui64 - cpuData->lkrnl)
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+ (usertime->value.ui64 - cpuData->luser);
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// Calculate percentages of deltas since last reading
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cpuData->userPercent = ((usertime->value.ui64 - cpuData->luser) / (double)totaltime) * 100.0;
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cpuData->nicePercent = (double)0.0; // Not implemented on Solaris
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cpuData->systemPercent = ((krnltime->value.ui64 - cpuData->lkrnl) / (double)totaltime) * 100.0;
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cpuData->irqPercent = ((intrtime->value.ui64 - cpuData->lintr) / (double)totaltime) * 100.0;
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cpuData->systemAllPercent = cpuData->systemPercent + cpuData->irqPercent;
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cpuData->idlePercent = ((idletime->value.ui64 - cpuData->lidle) / (double)totaltime) * 100.0;
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// Store current values to use for the next round of deltas
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cpuData->luser = usertime->value.ui64;
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cpuData->lkrnl = krnltime->value.ui64;
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cpuData->lintr = intrtime->value.ui64;
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cpuData->lidle = idletime->value.ui64;
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// Add frequency in MHz
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cpuData->frequency = super->settings->showCPUFrequency ? (double)cpu_freq->value.ui64 / 1E6 : NAN;
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// Accumulate the current percentages into buffers for later average calculation
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if (existingCPUs > 1) {
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userbuf += cpuData->userPercent;
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krnlbuf += cpuData->systemPercent;
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intrbuf += cpuData->irqPercent;
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idlebuf += cpuData->idlePercent;
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}
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}
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if (existingCPUs > 1) {
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CPUData* cpuData = &(this->cpus[0]);
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cpuData->userPercent = userbuf / activeCPUs;
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cpuData->nicePercent = (double)0.0; // Not implemented on Solaris
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cpuData->systemPercent = krnlbuf / activeCPUs;
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cpuData->irqPercent = intrbuf / activeCPUs;
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cpuData->systemAllPercent = cpuData->systemPercent + cpuData->irqPercent;
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cpuData->idlePercent = idlebuf / activeCPUs;
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}
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}
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static void SolarisMachine_scanMemoryInfo(SolarisMachine* this) {
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Machine* super = &this->super;
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static kstat_t *meminfo = NULL;
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int ksrphyserr = -1;
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kstat_named_t *totalmem_pgs = NULL;
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kstat_named_t *freemem_pgs = NULL;
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kstat_named_t *pages = NULL;
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struct swaptable *sl = NULL;
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struct swapent *swapdev = NULL;
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uint64_t totalswap = 0;
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uint64_t totalfree = 0;
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int nswap = 0;
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char *spath = NULL;
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char *spathbase = NULL;
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// Part 1 - physical memory
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if (this->kd != NULL && meminfo == NULL) {
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// Look up the kstat chain just once, it never changes
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meminfo = kstat_lookup_wrapper(this->kd, "unix", 0, "system_pages");
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}
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if (meminfo != NULL) {
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ksrphyserr = kstat_read(this->kd, meminfo, NULL);
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}
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if (ksrphyserr != -1) {
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totalmem_pgs = kstat_data_lookup_wrapper(meminfo, "physmem");
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freemem_pgs = kstat_data_lookup_wrapper(meminfo, "freemem");
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pages = kstat_data_lookup_wrapper(meminfo, "pagestotal");
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super->totalMem = totalmem_pgs->value.ui64 * this->pageSizeKB;
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if (super->totalMem > freemem_pgs->value.ui64 * this->pageSizeKB) {
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super->usedMem = super->totalMem - freemem_pgs->value.ui64 * this->pageSizeKB;
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} else {
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super->usedMem = 0; // This can happen in non-global zone (in theory)
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}
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// Not sure how to implement this on Solaris - suggestions welcome!
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super->cachedMem = 0;
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// Not really "buffers" but the best Solaris analogue that I can find to
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// "memory in use but not by programs or the kernel itself"
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super->buffersMem = (totalmem_pgs->value.ui64 - pages->value.ui64) * this->pageSizeKB;
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} else {
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// Fall back to basic sysconf if kstat isn't working
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super->totalMem = sysconf(_SC_PHYS_PAGES) * this->pageSize;
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super->buffersMem = 0;
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super->cachedMem = 0;
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super->usedMem = super->totalMem - (sysconf(_SC_AVPHYS_PAGES) * this->pageSize);
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}
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// Part 2 - swap
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nswap = swapctl(SC_GETNSWP, NULL);
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if (nswap > 0) {
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sl = xMalloc((nswap * sizeof(swapent_t)) + sizeof(int));
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}
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if (sl != NULL) {
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spathbase = xMalloc( nswap * MAXPATHLEN );
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}
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if (spathbase != NULL) {
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spath = spathbase;
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swapdev = sl->swt_ent;
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for (int i = 0; i < nswap; i++, swapdev++) {
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swapdev->ste_path = spath;
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spath += MAXPATHLEN;
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}
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sl->swt_n = nswap;
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}
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nswap = swapctl(SC_LIST, sl);
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if (nswap > 0) {
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swapdev = sl->swt_ent;
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for (int i = 0; i < nswap; i++, swapdev++) {
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totalswap += swapdev->ste_pages;
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totalfree += swapdev->ste_free;
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}
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}
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free(spathbase);
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free(sl);
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super->totalSwap = totalswap * this->pageSizeKB;
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super->usedSwap = super->totalSwap - (totalfree * this->pageSizeKB);
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}
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static void SolarisMachine_scanZfsArcstats(SolarisMachine* this) {
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kstat_named_t *cur_kstat;
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kstat_t *arcstats;
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int ksrphyserr;
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if (this->kd == NULL)
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return;
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arcstats = kstat_lookup_wrapper(this->kd, "zfs", 0, "arcstats");
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if (arcstats == NULL)
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return;
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ksrphyserr = kstat_read(this->kd, arcstats, NULL);
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if (ksrphyserr == -1)
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return;
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cur_kstat = kstat_data_lookup_wrapper( arcstats, "size" );
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this->zfs.size = cur_kstat->value.ui64 / 1024;
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this->zfs.enabled = this->zfs.size > 0 ? 1 : 0;
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cur_kstat = kstat_data_lookup_wrapper( arcstats, "c_max" );
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this->zfs.max = cur_kstat->value.ui64 / 1024;
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cur_kstat = kstat_data_lookup_wrapper( arcstats, "mfu_size" );
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this->zfs.MFU = cur_kstat != NULL ? cur_kstat->value.ui64 / 1024 : 0;
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cur_kstat = kstat_data_lookup_wrapper( arcstats, "mru_size" );
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this->zfs.MRU = cur_kstat != NULL ? cur_kstat->value.ui64 / 1024 : 0;
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cur_kstat = kstat_data_lookup_wrapper( arcstats, "anon_size" );
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this->zfs.anon = cur_kstat != NULL ? cur_kstat->value.ui64 / 1024 : 0;
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cur_kstat = kstat_data_lookup_wrapper( arcstats, "hdr_size" );
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this->zfs.header = cur_kstat != NULL ? cur_kstat->value.ui64 / 1024 : 0;
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cur_kstat = kstat_data_lookup_wrapper( arcstats, "other_size" );
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this->zfs.other = cur_kstat != NULL ? cur_kstat->value.ui64 / 1024 : 0;
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if ((cur_kstat = kstat_data_lookup_wrapper( arcstats, "compressed_size" )) != NULL) {
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this->zfs.compressed = cur_kstat->value.ui64 / 1024;
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this->zfs.isCompressed = 1;
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cur_kstat = kstat_data_lookup_wrapper( arcstats, "uncompressed_size" );
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this->zfs.uncompressed = cur_kstat->value.ui64 / 1024;
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} else {
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this->zfs.isCompressed = 0;
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}
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}
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void Machine_scan(Machine* super) {
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SolarisMachine* this = (SolarisMachine*) super;
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SolarisMachine_updateCPUcount(this);
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SolarisMachine_scanCPUTime(this);
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SolarisMachine_scanMemoryInfo(this);
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SolarisMachine_scanZfsArcstats(this);
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}
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Machine* Machine_new(UsersTable* usersTable, uid_t userId) {
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SolarisMachine* this = xCalloc(1, sizeof(SolarisMachine));
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Machine* super = &this->super;
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Machine_init(super, usersTable, userId);
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this->pageSize = sysconf(_SC_PAGESIZE);
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if (this->pageSize == -1)
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CRT_fatalError("Cannot get pagesize by sysconf(_SC_PAGESIZE)");
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this->pageSizeKB = this->pageSize / 1024;
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this->kd = kstat_open();
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if (!this->kd)
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CRT_fatalError("Cannot open kstat handle");
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SolarisMachine_updateCPUcount(this);
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return super;
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}
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void Machine_delete(Machine* super) {
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SolarisMachine* this = (SolarisMachine*) super;
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Machine_done(super);
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free(this->cpus);
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if (this->kd) {
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kstat_close(this->kd);
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}
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free(this);
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}
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bool Machine_isCPUonline(const Machine* super, unsigned int id) {
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assert(id < super->existingCPUs);
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const SolarisMachine* this = (const SolarisMachine*) super;
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return (super->existingCPUs == 1) ? true : this->cpus[id + 1].online;
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}
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