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htop/solaris/SolarisProcessList.c

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/*
htop - SolarisProcessList.c
(C) 2014 Hisham H. Muhammad
(C) 2017 Guy M. Broome
Released under the GNU GPL, see the COPYING file
in the source distribution for its full text.
*/
#include "ProcessList.h"
#include "SolarisProcess.h"
#include "SolarisProcessList.h"
#include <unistd.h>
#include <stdlib.h>
#include <sys/types.h>
#include <sys/user.h>
#include <err.h>
#include <fcntl.h>
#include <limits.h>
#include <string.h>
#include <procfs.h>
#include <errno.h>
#include <pwd.h>
#include <dirent.h>
#include <math.h>
#include <time.h>
#define MAXCMDLINE 255
/*{
#include <kstat.h>
#include <sys/param.h>
#include <zone.h>
#include <sys/uio.h>
#include <sys/resource.h>
#include <sys/sysconf.h>
#include <sys/sysinfo.h>
#include <sys/swap.h>
#define ZONE_ERRMSGLEN 1024
char zone_errmsg[ZONE_ERRMSGLEN];
typedef struct CPUData_ {
double userPercent;
double nicePercent;
double systemPercent;
double irqPercent;
double idlePercent;
double systemAllPercent;
uint64_t luser;
uint64_t lkrnl;
uint64_t lintr;
uint64_t lidle;
} CPUData;
typedef struct SolarisProcessList_ {
ProcessList super;
kstat_ctl_t* kd;
CPUData* cpus;
} SolarisProcessList;
}*/
static void setCommand(Process* process, const char* command, int len) {
if (process->comm && process->commLen >= len) {
strncpy(process->comm, command, len + 1);
} else {
free(process->comm);
process->comm = xStrdup(command);
}
process->commLen = len;
}
char* SolarisProcessList_readZoneName(kstat_ctl_t* kd, SolarisProcess* sproc) {
char* zname;
if ( sproc->zoneid == 0 ) {
zname = xStrdup("global ");
} else if ( kd == NULL ) {
zname = xStrdup("unknown ");
} else {
kstat_t* ks = kstat_lookup( kd, "zones", sproc->zoneid, NULL );
zname = xStrdup(ks->ks_name);
}
return zname;
}
ProcessList* ProcessList_new(UsersTable* usersTable, Hashtable* pidWhiteList, uid_t userId) {
SolarisProcessList* spl = xCalloc(1, sizeof(SolarisProcessList));
ProcessList* pl = (ProcessList*) spl;
ProcessList_init(pl, Class(SolarisProcess), usersTable, pidWhiteList, userId);
spl->kd = kstat_open();
pl->cpuCount = sysconf(_SC_NPROCESSORS_ONLN);
if (pl->cpuCount == 1 ) {
spl->cpus = xRealloc(spl->cpus, sizeof(CPUData));
} else {
spl->cpus = xRealloc(spl->cpus, (pl->cpuCount + 1) * sizeof(CPUData));
}
return pl;
}
static inline void SolarisProcessList_scanCPUTime(ProcessList* pl) {
const SolarisProcessList* spl = (SolarisProcessList*) pl;
int cpus = pl->cpuCount;
kstat_t *cpuinfo = NULL;
int kchain = 0;
kstat_named_t *idletime = NULL;
kstat_named_t *intrtime = NULL;
kstat_named_t *krnltime = NULL;
kstat_named_t *usertime = NULL;
double idlebuf = 0;
double intrbuf = 0;
double krnlbuf = 0;
double userbuf = 0;
uint64_t totaltime = 0;
int arrskip = 0;
assert(cpus > 0);
if (cpus > 1) {
// Store values for the stats loop one extra element up in the array
// to leave room for the average to be calculated afterwards
arrskip++;
}
// Calculate per-CPU statistics first
for (int i = 0; i < cpus; i++) {
if (spl->kd != NULL) { cpuinfo = kstat_lookup(spl->kd,"cpu",i,"sys"); }
if (cpuinfo != NULL) { kchain = kstat_read(spl->kd,cpuinfo,NULL); }
if (kchain != -1 ) {
idletime = kstat_data_lookup(cpuinfo,"cpu_nsec_idle");
intrtime = kstat_data_lookup(cpuinfo,"cpu_nsec_intr");
krnltime = kstat_data_lookup(cpuinfo,"cpu_nsec_kernel");
usertime = kstat_data_lookup(cpuinfo,"cpu_nsec_user");
}
assert( (idletime != NULL) && (intrtime != NULL)
&& (krnltime != NULL) && (usertime != NULL) );
CPUData* cpuData = &(spl->cpus[i+arrskip]);
totaltime = (idletime->value.ui64 - cpuData->lidle)
+ (intrtime->value.ui64 - cpuData->lintr)
+ (krnltime->value.ui64 - cpuData->lkrnl)
+ (usertime->value.ui64 - cpuData->luser);
// Calculate percentages of deltas since last reading
cpuData->userPercent = ((usertime->value.ui64 - cpuData->luser) / (double)totaltime) * 100.0;
cpuData->nicePercent = (double)0.0; // Not implemented on Solaris
cpuData->systemPercent = ((krnltime->value.ui64 - cpuData->lkrnl) / (double)totaltime) * 100.0;
cpuData->irqPercent = ((intrtime->value.ui64 - cpuData->lintr) / (double)totaltime) * 100.0;
cpuData->systemAllPercent = cpuData->systemPercent + cpuData->irqPercent;
cpuData->idlePercent = ((idletime->value.ui64 - cpuData->lidle) / (double)totaltime) * 100.0;
// Store current values to use for the next round of deltas
cpuData->luser = usertime->value.ui64;
cpuData->lkrnl = krnltime->value.ui64;
cpuData->lintr = intrtime->value.ui64;
cpuData->lidle = idletime->value.ui64;
// Accumulate the current percentages into buffers for later average calculation
if (cpus > 1) {
userbuf += cpuData->userPercent;
krnlbuf += cpuData->systemPercent;
intrbuf += cpuData->irqPercent;
idlebuf += cpuData->idlePercent;
}
}
if (cpus > 1) {
CPUData* cpuData = &(spl->cpus[0]);
cpuData->userPercent = userbuf / cpus;
cpuData->nicePercent = (double)0.0; // Not implemented on Solaris
cpuData->systemPercent = krnlbuf / cpus;
cpuData->irqPercent = intrbuf / cpus;
cpuData->systemAllPercent = cpuData->systemPercent + cpuData->irqPercent;
cpuData->idlePercent = idlebuf / cpus;
}
}
static inline void SolarisProcessList_scanMemoryInfo(ProcessList* pl) {
SolarisProcessList* spl = (SolarisProcessList*) pl;
kstat_t *meminfo = NULL;
int ksrphyserr = 0;
kstat_named_t *totalmem_pgs = NULL;
kstat_named_t *lockedmem_pgs = NULL;
kstat_named_t *pages = NULL;
struct swaptable *sl = NULL;
struct swapent *swapdev = NULL;
uint64_t totalswap = 0;
uint64_t totalfree = 0;
int nswap = 0;
char *spath = NULL;
// PAGE_SIZE is a macro to a function call.
// Since we use it so much in here, go ahead copy
// the value locally.
int pgsiz = PAGE_SIZE;
// Part 1 - physical memory
if (spl->kd != NULL) { meminfo = kstat_lookup(spl->kd,"unix",0,"system_pages"); }
if (meminfo != NULL) { ksrphyserr = kstat_read(spl->kd,meminfo,NULL); }
if (ksrphyserr != -1) {
totalmem_pgs = kstat_data_lookup( meminfo, "physmem" );
lockedmem_pgs = kstat_data_lookup( meminfo, "pageslocked" );
pages = kstat_data_lookup( meminfo, "pagestotal" );
pl->totalMem = ((totalmem_pgs->value.ui64)/1024) * pgsiz;
pl->usedMem = ((lockedmem_pgs->value.ui64)/1024) * pgsiz;
// Not sure how to implement this on Solaris - suggestions welcome!
pl->cachedMem = 0;
// Not really "buffers" but the best Solaris analogue that I can find to
// "memory in use but not by programs or the kernel itself"
pl->buffersMem = (((totalmem_pgs->value.ui64)/1024) - (pages->value.ui64)/1024) * pgsiz;
} else {
// Fall back to basic sysconf if kstat isn't working
pl->totalMem = sysconf(_SC_PHYS_PAGES) * pgsiz;
pl->buffersMem = 0;
pl->cachedMem = 0;
pl->usedMem = pl->totalMem - (sysconf(_SC_AVPHYS_PAGES) * pgsiz);
}
// Part 2 - swap
nswap = swapctl(SC_GETNSWP, NULL);
if (nswap > 0) { sl = malloc(nswap * sizeof(swapent_t) + sizeof(int)); }
if (sl != NULL) { spath = malloc( nswap * MAXPATHLEN ); }
if (spath != NULL) {
swapdev = sl->swt_ent;
for (int i = 0; i < nswap; i++, swapdev++) {
swapdev->ste_path = spath;
spath += MAXPATHLEN;
}
sl->swt_n = nswap;
}
nswap = swapctl(SC_LIST, sl);
if (nswap > 0) {
swapdev = sl->swt_ent;
for (int i = 0; i < nswap; i++, swapdev++) {
totalswap += swapdev->ste_pages;
totalfree += swapdev->ste_free;
free(swapdev->ste_path);
}
free(sl);
}
pl->totalSwap = (totalswap * pgsiz)/1024;
pl->usedSwap = pl->totalSwap - ((totalfree * pgsiz)/1024);
}
void ProcessList_delete(ProcessList* this) {
const SolarisProcessList* spl = (SolarisProcessList*) this;
if (spl->kd) kstat_close(spl->kd);
free(spl->cpus);
ProcessList_done(this);
free(this);
}
void ProcessList_goThroughEntries(ProcessList* this) {
SolarisProcessList* spl = (SolarisProcessList*) this;
Settings* settings = this->settings;
bool hideKernelThreads = settings->hideKernelThreads;
bool hideUserlandThreads = settings->hideUserlandThreads;
DIR* dir = NULL;
struct dirent* entry = NULL;
char* name = NULL;
int pid;
bool preExisting = false;
Process* proc = NULL;
Process* parent = NULL;
SolarisProcess* sproc = NULL;
psinfo_t _psinfo;
pstatus_t _pstatus;
prusage_t _prusage;
char filename[MAX_NAME+1];
FILE *fp = NULL;
uint64_t addRunning = 0;
uint64_t addTotal = 0;
struct timeval tv;
struct tm date;
gettimeofday(&tv, NULL);
// If these fail, then the relevant metrics will simply display as zero
SolarisProcessList_scanCPUTime(this);
SolarisProcessList_scanMemoryInfo(this);
dir = opendir(PROCDIR);
if (!dir) return; // Is proc mounted?
while ((entry = readdir(dir)) != NULL) {
addRunning = 0;
addTotal = 0;
name = entry->d_name;
pid = atoi(name);
proc = ProcessList_getProcess(this, pid, &preExisting, (Process_New) SolarisProcess_new);
proc->tgid = parent ? parent->pid : pid;
sproc = (SolarisProcess *) proc;
xSnprintf(filename, MAX_NAME, "%s/%s/psinfo", PROCDIR, name);
fp = fopen(filename, "r");
if ( fp == NULL ) continue;
fread(&_psinfo,sizeof(psinfo_t),1,fp);
fclose(fp);
xSnprintf(filename, MAX_NAME, "%s/%s/status", PROCDIR, name);
fp = fopen(filename, "r");
if ( fp != NULL ) {
fread(&_pstatus,sizeof(pstatus_t),1,fp);
}
fclose(fp);
xSnprintf(filename, MAX_NAME, "%s/%s/usage", PROCDIR, name);
fp = fopen(filename,"r");
if ( fp == NULL ) continue;
fread(&_prusage,sizeof(prusage_t),1,fp);
fclose(fp);
if(!preExisting) {
sproc->kernel = false;
proc->pid = _psinfo.pr_pid;
proc->ppid = _psinfo.pr_ppid;
proc->tgid = _psinfo.pr_pid;
sproc->zoneid = _psinfo.pr_zoneid;
proc->tty_nr = _psinfo.pr_ttydev;
proc->pgrp = _psinfo.pr_pgid;
// NOTE: These 'percentages' are 16-bit BINARY FRACTIONS where 1.0 = 0x8000
// Source: https://docs.oracle.com/cd/E19253-01/816-5174/proc-4/index.html
// (accessed on 18 November 2017)
proc->percent_cpu = ((uint16_t)_psinfo.pr_pctcpu/(double)32768)*(double)100.0;
proc->percent_mem = ((uint16_t)_psinfo.pr_pctmem/(double)32768)*(double)100.0;
proc->st_uid = _psinfo.pr_euid;
proc->user = UsersTable_getRef(this->usersTable, proc->st_uid);
proc->nlwp = _psinfo.pr_nlwp;
proc->session = _pstatus.pr_sid;
setCommand(proc,_psinfo.pr_fname,PRFNSZ);
sproc->zname = SolarisProcessList_readZoneName(spl->kd,sproc);
proc->majflt = _prusage.pr_majf;
proc->minflt = _prusage.pr_minf;
proc->m_resident = (_psinfo.pr_rssize)/8;
proc->m_size = (_psinfo.pr_size)/8;
proc->priority = _psinfo.pr_lwp.pr_pri;
proc->nice = _psinfo.pr_lwp.pr_nice;
proc->processor = _psinfo.pr_lwp.pr_onpro;
proc->state = _psinfo.pr_lwp.pr_sname;
proc->time = _psinfo.pr_time.tv_sec;
sproc->taskid = _psinfo.pr_taskid;
sproc->projid = _psinfo.pr_projid;
sproc->poolid = _psinfo.pr_poolid;
sproc->contid = _psinfo.pr_contract;
proc->starttime_ctime = _psinfo.pr_start.tv_sec;
(void) localtime_r((time_t*) &proc->starttime_ctime, &date);
strftime(proc->starttime_show, 7, ((proc->starttime_ctime > tv.tv_sec - 86400) ? "%R " : "%b%d "), &date);
ProcessList_add(this, proc);
} else {
proc->ppid = _psinfo.pr_ppid;
sproc->zoneid = _psinfo.pr_zoneid;
// See note above about these percentages
proc->percent_cpu = ((uint16_t)_psinfo.pr_pctcpu/(double)32768)*(double)100.0;
proc->percent_mem = ((uint16_t)_psinfo.pr_pctmem/(double)32768)*(double)100.0;
proc->st_uid = _psinfo.pr_euid;
proc->pgrp = _psinfo.pr_pgid;
proc->nlwp = _psinfo.pr_nlwp;
proc->user = UsersTable_getRef(this->usersTable, proc->st_uid);
setCommand(proc,_psinfo.pr_fname,PRFNSZ);
sproc->zname = SolarisProcessList_readZoneName(spl->kd,sproc);
proc->majflt = _prusage.pr_majf;
proc->minflt = _prusage.pr_minf;
proc->m_resident = (_psinfo.pr_rssize)/8;
proc->m_size = (_psinfo.pr_size)/8;
proc->priority = _psinfo.pr_lwp.pr_pri;
proc->nice = _psinfo.pr_lwp.pr_nice;
proc->processor = _psinfo.pr_lwp.pr_onpro;
proc->state = _psinfo.pr_lwp.pr_sname;
proc->time = _psinfo.pr_time.tv_sec;
sproc->taskid = _psinfo.pr_taskid;
sproc->projid = _psinfo.pr_projid;
sproc->poolid = _psinfo.pr_poolid;
sproc->contid = _psinfo.pr_contract;
}
proc->show = !(hideKernelThreads && (_pstatus.pr_flags & PR_ISSYS));
if (_pstatus.pr_flags & PR_ISSYS) {
if (hideKernelThreads) {
addRunning = 0;
addTotal = 0;
} else {
this->kernelThreads += proc->nlwp;
if (proc->state == 'O') {
addRunning++;
addTotal = proc->nlwp+1;
} else {
addTotal = proc->nlwp+1;
}
}
} else {
if (hideUserlandThreads) {
if(proc->state == 'O') {
addRunning++;
addTotal++;
} else {
addTotal++;
}
} else {
this->userlandThreads += proc->nlwp;
if(proc->state == 'O') {
addRunning++;
addTotal = proc->nlwp+1;
} else {
addTotal = proc->nlwp+1;
}
}
}
this->runningTasks+=addRunning;
this->totalTasks+=addTotal;
proc->updated = true;
} // while ((entry = readdir(dir)) != NULL)
closedir(dir);
}
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