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Diffstat (limited to 'solaris/SolarisProcessList.c')
-rw-r--r-- | solaris/SolarisProcessList.c | 560 |
1 files changed, 560 insertions, 0 deletions
diff --git a/solaris/SolarisProcessList.c b/solaris/SolarisProcessList.c new file mode 100644 index 0000000..905cfbd --- /dev/null +++ b/solaris/SolarisProcessList.c @@ -0,0 +1,560 @@ +/* +htop - SolarisProcessList.c +(C) 2014 Hisham H. Muhammad +(C) 2017,2018 Guy M. Broome +Released under the GNU GPLv2+, see the COPYING file +in the source distribution for its full text. +*/ + + +#include "solaris/SolarisProcessList.h" + +#include <unistd.h> +#include <stdlib.h> +#include <sys/types.h> +#include <sys/user.h> +#include <limits.h> +#include <string.h> +#include <procfs.h> +#include <errno.h> +#include <pwd.h> +#include <math.h> +#include <time.h> + +#include "CRT.h" +#include "solaris/Platform.h" +#include "solaris/SolarisProcess.h" + + +#define GZONE "global " +#define UZONE "unknown " + +static int pageSize; +static int pageSizeKB; + +static char* SolarisProcessList_readZoneName(kstat_ctl_t* kd, SolarisProcess* sproc) { + char* zname; + + if ( sproc->zoneid == 0 ) { + zname = xStrdup(GZONE); + } else if ( kd == NULL ) { + zname = xStrdup(UZONE); + } else { + kstat_t* ks = kstat_lookup_wrapper( kd, "zones", sproc->zoneid, NULL ); + zname = xStrdup(ks == NULL ? UZONE : ks->ks_name); + } + + return zname; +} + +static void SolarisProcessList_updateCPUcount(ProcessList* super) { + SolarisProcessList* spl = (SolarisProcessList*) super; + long int s; + bool change = false; + + s = sysconf(_SC_NPROCESSORS_CONF); + if (s < 1) + CRT_fatalError("Cannot get existing CPU count by sysconf(_SC_NPROCESSORS_CONF)"); + + if (s != super->existingCPUs) { + if (s == 1) { + spl->cpus = xRealloc(spl->cpus, sizeof(CPUData)); + spl->cpus[0].online = true; + } else { + spl->cpus = xReallocArray(spl->cpus, s + 1, sizeof(CPUData)); + spl->cpus[0].online = true; /* average is always "online" */ + for (int i = 1; i < s + 1; i++) { + spl->cpus[i].online = false; + } + } + + change = true; + super->existingCPUs = s; + } + + s = sysconf(_SC_NPROCESSORS_ONLN); + if (s < 1) + CRT_fatalError("Cannot get active CPU count by sysconf(_SC_NPROCESSORS_ONLN)"); + + if (s != super->activeCPUs) { + change = true; + super->activeCPUs = s; + } + + if (change) { + kstat_close(spl->kd); + spl->kd = kstat_open(); + if (!spl->kd) + CRT_fatalError("Cannot open kstat handle"); + } +} + +ProcessList* ProcessList_new(UsersTable* usersTable, Hashtable* dynamicMeters, Hashtable* dynamicColumns, Hashtable* pidMatchList, uid_t userId) { + SolarisProcessList* spl = xCalloc(1, sizeof(SolarisProcessList)); + ProcessList* pl = (ProcessList*) spl; + ProcessList_init(pl, Class(SolarisProcess), usersTable, dynamicMeters, dynamicColumns, pidMatchList, userId); + + spl->kd = kstat_open(); + if (!spl->kd) + CRT_fatalError("Cannot open kstat handle"); + + pageSize = sysconf(_SC_PAGESIZE); + if (pageSize == -1) + CRT_fatalError("Cannot get pagesize by sysconf(_SC_PAGESIZE)"); + pageSizeKB = pageSize / 1024; + + SolarisProcessList_updateCPUcount(pl); + + return pl; +} + +static inline void SolarisProcessList_scanCPUTime(ProcessList* pl) { + const SolarisProcessList* spl = (SolarisProcessList*) pl; + unsigned int activeCPUs = pl->activeCPUs; + unsigned int existingCPUs = pl->existingCPUs; + kstat_t* cpuinfo = NULL; + kstat_named_t* idletime = NULL; + kstat_named_t* intrtime = NULL; + kstat_named_t* krnltime = NULL; + kstat_named_t* usertime = NULL; + kstat_named_t* cpu_freq = NULL; + double idlebuf = 0; + double intrbuf = 0; + double krnlbuf = 0; + double userbuf = 0; + int arrskip = 0; + + assert(existingCPUs > 0); + assert(spl->kd); + + if (existingCPUs > 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 (unsigned int i = 0; i < existingCPUs; i++) { + CPUData* cpuData = &(spl->cpus[i + arrskip]); + + if ((cpuinfo = kstat_lookup_wrapper(spl->kd, "cpu", i, "sys")) != NULL) { + cpuData->online = true; + if (kstat_read(spl->kd, cpuinfo, NULL) != -1) { + idletime = kstat_data_lookup_wrapper(cpuinfo, "cpu_nsec_idle"); + intrtime = kstat_data_lookup_wrapper(cpuinfo, "cpu_nsec_intr"); + krnltime = kstat_data_lookup_wrapper(cpuinfo, "cpu_nsec_kernel"); + usertime = kstat_data_lookup_wrapper(cpuinfo, "cpu_nsec_user"); + } + } else { + cpuData->online = false; + continue; + } + + assert( (idletime != NULL) && (intrtime != NULL) + && (krnltime != NULL) && (usertime != NULL) ); + + if (pl->settings->showCPUFrequency) { + if ((cpuinfo = kstat_lookup_wrapper(spl->kd, "cpu_info", i, NULL)) != NULL) { + if (kstat_read(spl->kd, cpuinfo, NULL) != -1) { + cpu_freq = kstat_data_lookup_wrapper(cpuinfo, "current_clock_Hz"); + } + } + + assert( cpu_freq != NULL ); + } + + uint64_t 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; + // Add frequency in MHz + cpuData->frequency = pl->settings->showCPUFrequency ? (double)cpu_freq->value.ui64 / 1E6 : NAN; + // Accumulate the current percentages into buffers for later average calculation + if (existingCPUs > 1) { + userbuf += cpuData->userPercent; + krnlbuf += cpuData->systemPercent; + intrbuf += cpuData->irqPercent; + idlebuf += cpuData->idlePercent; + } + } + + if (existingCPUs > 1) { + CPUData* cpuData = &(spl->cpus[0]); + cpuData->userPercent = userbuf / activeCPUs; + cpuData->nicePercent = (double)0.0; // Not implemented on Solaris + cpuData->systemPercent = krnlbuf / activeCPUs; + cpuData->irqPercent = intrbuf / activeCPUs; + cpuData->systemAllPercent = cpuData->systemPercent + cpuData->irqPercent; + cpuData->idlePercent = idlebuf / activeCPUs; + } +} + +static inline void SolarisProcessList_scanMemoryInfo(ProcessList* pl) { + SolarisProcessList* spl = (SolarisProcessList*) pl; + static kstat_t *meminfo = NULL; + int ksrphyserr = -1; + kstat_named_t *totalmem_pgs = NULL; + kstat_named_t *freemem_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; + char *spathbase = NULL; + + // Part 1 - physical memory + if (spl->kd != NULL && meminfo == NULL) { + // Look up the kstat chain just once, it never changes + meminfo = kstat_lookup_wrapper(spl->kd, "unix", 0, "system_pages"); + } + if (meminfo != NULL) { + ksrphyserr = kstat_read(spl->kd, meminfo, NULL); + } + if (ksrphyserr != -1) { + totalmem_pgs = kstat_data_lookup_wrapper(meminfo, "physmem"); + freemem_pgs = kstat_data_lookup_wrapper(meminfo, "freemem"); + pages = kstat_data_lookup_wrapper(meminfo, "pagestotal"); + + pl->totalMem = totalmem_pgs->value.ui64 * pageSizeKB; + if (pl->totalMem > freemem_pgs->value.ui64 * pageSizeKB) { + pl->usedMem = pl->totalMem - freemem_pgs->value.ui64 * pageSizeKB; + } else { + pl->usedMem = 0; // This can happen in non-global zone (in theory) + } + // 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 - pages->value.ui64) * pageSizeKB; + } else { + // Fall back to basic sysconf if kstat isn't working + pl->totalMem = sysconf(_SC_PHYS_PAGES) * pageSize; + pl->buffersMem = 0; + pl->cachedMem = 0; + pl->usedMem = pl->totalMem - (sysconf(_SC_AVPHYS_PAGES) * pageSize); + } + + // Part 2 - swap + nswap = swapctl(SC_GETNSWP, NULL); + if (nswap > 0) { + sl = xMalloc((nswap * sizeof(swapent_t)) + sizeof(int)); + } + if (sl != NULL) { + spathbase = xMalloc( nswap * MAXPATHLEN ); + } + if (spathbase != NULL) { + spath = spathbase; + 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(spathbase); + free(sl); + pl->totalSwap = totalswap * pageSizeKB; + pl->usedSwap = pl->totalSwap - (totalfree * pageSizeKB); +} + +static inline void SolarisProcessList_scanZfsArcstats(ProcessList* pl) { + SolarisProcessList* spl = (SolarisProcessList*) pl; + kstat_t *arcstats = NULL; + int ksrphyserr = -1; + kstat_named_t *cur_kstat = NULL; + + if (spl->kd != NULL) { + arcstats = kstat_lookup_wrapper(spl->kd, "zfs", 0, "arcstats"); + } + if (arcstats != NULL) { + ksrphyserr = kstat_read(spl->kd, arcstats, NULL); + } + if (ksrphyserr != -1) { + cur_kstat = kstat_data_lookup_wrapper( arcstats, "size" ); + spl->zfs.size = cur_kstat->value.ui64 / 1024; + spl->zfs.enabled = spl->zfs.size > 0 ? 1 : 0; + + cur_kstat = kstat_data_lookup_wrapper( arcstats, "c_max" ); + spl->zfs.max = cur_kstat->value.ui64 / 1024; + + cur_kstat = kstat_data_lookup_wrapper( arcstats, "mfu_size" ); + spl->zfs.MFU = cur_kstat != NULL ? cur_kstat->value.ui64 / 1024 : 0; + + cur_kstat = kstat_data_lookup_wrapper( arcstats, "mru_size" ); + spl->zfs.MRU = cur_kstat != NULL ? cur_kstat->value.ui64 / 1024 : 0; + + cur_kstat = kstat_data_lookup_wrapper( arcstats, "anon_size" ); + spl->zfs.anon = cur_kstat != NULL ? cur_kstat->value.ui64 / 1024 : 0; + + cur_kstat = kstat_data_lookup_wrapper( arcstats, "hdr_size" ); + spl->zfs.header = cur_kstat != NULL ? cur_kstat->value.ui64 / 1024 : 0; + + cur_kstat = kstat_data_lookup_wrapper( arcstats, "other_size" ); + spl->zfs.other = cur_kstat != NULL ? cur_kstat->value.ui64 / 1024 : 0; + + if ((cur_kstat = kstat_data_lookup_wrapper( arcstats, "compressed_size" )) != NULL) { + spl->zfs.compressed = cur_kstat->value.ui64 / 1024; + spl->zfs.isCompressed = 1; + + cur_kstat = kstat_data_lookup_wrapper( arcstats, "uncompressed_size" ); + spl->zfs.uncompressed = cur_kstat->value.ui64 / 1024; + } else { + spl->zfs.isCompressed = 0; + } + } +} + +void ProcessList_delete(ProcessList* pl) { + SolarisProcessList* spl = (SolarisProcessList*) pl; + ProcessList_done(pl); + free(spl->cpus); + if (spl->kd) { + kstat_close(spl->kd); + } + free(spl); +} + +static void SolarisProcessList_updateExe(pid_t pid, Process* proc) { + char path[32]; + xSnprintf(path, sizeof(path), "/proc/%d/path/a.out", pid); + + char target[PATH_MAX]; + ssize_t ret = readlink(path, target, sizeof(target) - 1); + if (ret <= 0) + return; + + target[ret] = '\0'; + Process_updateExe(proc, target); +} + +static void SolarisProcessList_updateCwd(pid_t pid, Process* proc) { + char path[32]; + xSnprintf(path, sizeof(path), "/proc/%d/cwd", pid); + + char target[PATH_MAX]; + ssize_t ret = readlink(path, target, sizeof(target) - 1); + if (ret <= 0) + return; + + target[ret] = '\0'; + free_and_xStrdup(&proc->procCwd, target); +} + +/* Taken from: https://docs.oracle.com/cd/E19253-01/817-6223/6mlkidlom/index.html#tbl-sched-state */ +static inline ProcessState SolarisProcessList_getProcessState(char state) { + switch (state) { + case 'S': return SLEEPING; + case 'R': return RUNNABLE; + case 'O': return RUNNING; + case 'Z': return ZOMBIE; + case 'T': return STOPPED; + case 'I': return IDLE; + default: return UNKNOWN; + } +} + +/* NOTE: the following is a callback function of type proc_walk_f + * and MUST conform to the appropriate definition in order + * to work. See libproc(3LIB) on a Solaris or Illumos + * system for more info. + */ + +static int SolarisProcessList_walkproc(psinfo_t* _psinfo, lwpsinfo_t* _lwpsinfo, void* listptr) { + bool preExisting; + pid_t getpid; + + // Setup process list + ProcessList* pl = (ProcessList*) listptr; + SolarisProcessList* spl = (SolarisProcessList*) listptr; + + id_t lwpid_real = _lwpsinfo->pr_lwpid; + if (lwpid_real > 1023) { + return 0; + } + + pid_t lwpid = (_psinfo->pr_pid * 1024) + lwpid_real; + bool onMasterLWP = (_lwpsinfo->pr_lwpid == _psinfo->pr_lwp.pr_lwpid); + if (onMasterLWP) { + getpid = _psinfo->pr_pid * 1024; + } else { + getpid = lwpid; + } + + Process* proc = ProcessList_getProcess(pl, getpid, &preExisting, SolarisProcess_new); + SolarisProcess* sproc = (SolarisProcess*) proc; + + // Common code pass 1 + proc->show = false; + sproc->taskid = _psinfo->pr_taskid; + sproc->projid = _psinfo->pr_projid; + sproc->poolid = _psinfo->pr_poolid; + sproc->contid = _psinfo->pr_contract; + proc->priority = _lwpsinfo->pr_pri; + proc->nice = _lwpsinfo->pr_nice - NZERO; + proc->processor = _lwpsinfo->pr_onpro; + proc->state = SolarisProcessList_getProcessState(_lwpsinfo->pr_sname); + // NOTE: This 'percentage' is a 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_mem = ((uint16_t)_psinfo->pr_pctmem / (double)32768) * (double)100.0; + proc->pgrp = _psinfo->pr_pgid; + proc->nlwp = _psinfo->pr_nlwp; + proc->session = _psinfo->pr_sid; + + proc->tty_nr = _psinfo->pr_ttydev; + const char* name = (_psinfo->pr_ttydev != PRNODEV) ? ttyname(_psinfo->pr_ttydev) : NULL; + if (!name) { + free(proc->tty_name); + proc->tty_name = NULL; + } else { + free_and_xStrdup(&proc->tty_name, name); + } + + proc->m_resident = _psinfo->pr_rssize; // KB + proc->m_virt = _psinfo->pr_size; // KB + + if (proc->st_uid != _psinfo->pr_euid) { + proc->st_uid = _psinfo->pr_euid; + proc->user = UsersTable_getRef(pl->usersTable, proc->st_uid); + } + + if (!preExisting) { + sproc->realpid = _psinfo->pr_pid; + sproc->lwpid = lwpid_real; + sproc->zoneid = _psinfo->pr_zoneid; + sproc->zname = SolarisProcessList_readZoneName(spl->kd, sproc); + SolarisProcessList_updateExe(_psinfo->pr_pid, proc); + + Process_updateComm(proc, _psinfo->pr_fname); + Process_updateCmdline(proc, _psinfo->pr_psargs, 0, 0); + + if (proc->settings->ss->flags & PROCESS_FLAG_CWD) { + SolarisProcessList_updateCwd(_psinfo->pr_pid, proc); + } + } + + // End common code pass 1 + + if (onMasterLWP) { // Are we on the representative LWP? + proc->ppid = (_psinfo->pr_ppid * 1024); + proc->tgid = (_psinfo->pr_ppid * 1024); + sproc->realppid = _psinfo->pr_ppid; + sproc->realtgid = _psinfo->pr_ppid; + + // See note above (in common section) about this BINARY FRACTION + proc->percent_cpu = ((uint16_t)_psinfo->pr_pctcpu / (double)32768) * (double)100.0; + Process_updateCPUFieldWidths(proc->percent_cpu); + + proc->time = _psinfo->pr_time.tv_sec * 100 + _psinfo->pr_time.tv_nsec / 10000000; + if (!preExisting) { // Tasks done only for NEW processes + proc->isUserlandThread = false; + proc->starttime_ctime = _psinfo->pr_start.tv_sec; + } + + // Update proc and thread counts based on settings + if (proc->isKernelThread && !pl->settings->hideKernelThreads) { + pl->kernelThreads += proc->nlwp; + pl->totalTasks += proc->nlwp + 1; + if (proc->state == RUNNING) { + pl->runningTasks++; + } + } else if (!proc->isKernelThread) { + if (proc->state == RUNNING) { + pl->runningTasks++; + } + if (pl->settings->hideUserlandThreads) { + pl->totalTasks++; + } else { + pl->userlandThreads += proc->nlwp; + pl->totalTasks += proc->nlwp + 1; + } + } + proc->show = !(pl->settings->hideKernelThreads && proc->isKernelThread); + } else { // We are not in the master LWP, so jump to the LWP handling code + proc->percent_cpu = ((uint16_t)_lwpsinfo->pr_pctcpu / (double)32768) * (double)100.0; + Process_updateCPUFieldWidths(proc->percent_cpu); + + proc->time = _lwpsinfo->pr_time.tv_sec * 100 + _lwpsinfo->pr_time.tv_nsec / 10000000; + if (!preExisting) { // Tasks done only for NEW LWPs + proc->isUserlandThread = true; + proc->ppid = _psinfo->pr_pid * 1024; + proc->tgid = _psinfo->pr_pid * 1024; + sproc->realppid = _psinfo->pr_pid; + sproc->realtgid = _psinfo->pr_pid; + proc->starttime_ctime = _lwpsinfo->pr_start.tv_sec; + } + + // Top-level process only gets this for the representative LWP + if (proc->isKernelThread && !pl->settings->hideKernelThreads) { + proc->show = true; + } + if (!proc->isKernelThread && !pl->settings->hideUserlandThreads) { + proc->show = true; + } + } // Top-level LWP or subordinate LWP + + // Common code pass 2 + + if (!preExisting) { + if ((sproc->realppid <= 0) && !(sproc->realpid <= 1)) { + proc->isKernelThread = true; + } else { + proc->isKernelThread = false; + } + + Process_fillStarttimeBuffer(proc); + ProcessList_add(pl, proc); + } + + proc->updated = true; + + // End common code pass 2 + + return 0; +} + +void ProcessList_goThroughEntries(ProcessList* super, bool pauseProcessUpdate) { + SolarisProcessList_updateCPUcount(super); + SolarisProcessList_scanCPUTime(super); + SolarisProcessList_scanMemoryInfo(super); + SolarisProcessList_scanZfsArcstats(super); + + // in pause mode only gather global data for meters (CPU/memory/...) + if (pauseProcessUpdate) { + return; + } + + super->kernelThreads = 1; + proc_walk(&SolarisProcessList_walkproc, super, PR_WALK_LWP); +} + +bool ProcessList_isCPUonline(const ProcessList* super, unsigned int id) { + assert(id < super->existingCPUs); + + const SolarisProcessList* spl = (const SolarisProcessList*) super; + + return (super->existingCPUs == 1) ? true : spl->cpus[id + 1].online; +} |