/* htop - OpenBSDProcessList.c (C) 2014 Hisham H. Muhammad (C) 2015 Michael McConville Released under the GNU GPLv2, see the COPYING file in the source distribution for its full text. */ #include "openbsd/OpenBSDProcessList.h" #include #include #include #include #include #include #include #include #include #include #include #include #include #include "CRT.h" #include "Macros.h" #include "Object.h" #include "Process.h" #include "ProcessList.h" #include "Settings.h" #include "XUtils.h" #include "openbsd/OpenBSDProcess.h" static long fscale; static int pageSize; static int pageSizeKB; ProcessList* ProcessList_new(UsersTable* usersTable, Hashtable* pidMatchList, uid_t userId) { const int nmib[] = { CTL_HW, HW_NCPU }; const int mib[] = { CTL_HW, HW_NCPUONLINE }; const int fmib[] = { CTL_KERN, KERN_FSCALE }; int r; unsigned int cpu_index_c = 0; unsigned int ncpu; size_t size; char errbuf[_POSIX2_LINE_MAX]; OpenBSDProcessList* opl = xCalloc(1, sizeof(OpenBSDProcessList)); ProcessList* pl = (ProcessList*) opl; ProcessList_init(pl, Class(OpenBSDProcess), usersTable, pidMatchList, userId); size = sizeof(pl->cpuCount); r = sysctl(mib, 2, &pl->cpuCount, &size, NULL, 0); if (r < 0 || pl->cpuCount < 1) { pl->cpuCount = 1; } opl->cpus = xCalloc(pl->cpuCount + 1, sizeof(CPUData)); size = sizeof(int); r = sysctl(nmib, 2, &ncpu, &size, NULL, 0); if (r < 0) { ncpu = pl->cpuCount; } size = sizeof(fscale); if (sysctl(fmib, 2, &fscale, &size, NULL, 0) < 0) { CRT_fatalError("fscale sysctl call failed"); } if ((pageSize = sysconf(_SC_PAGESIZE)) == -1) CRT_fatalError("pagesize sysconf call failed"); pageSizeKB = pageSize / ONE_K; for (unsigned int i = 0; i <= pl->cpuCount; i++) { CPUData* d = opl->cpus + i; d->totalTime = 1; d->totalPeriod = 1; } opl->kd = kvm_openfiles(NULL, NULL, NULL, KVM_NO_FILES, errbuf); if (opl->kd == NULL) { CRT_fatalError("kvm_openfiles() failed"); } opl->cpuSpeed = -1; for (unsigned int i = 0; i < ncpu; i++) { const int ncmib[] = { CTL_KERN, KERN_CPUSTATS, i }; struct cpustats cpu_stats; size = sizeof(cpu_stats); if (sysctl(ncmib, 3, &cpu_stats, &size, NULL, 0) < 0) { CRT_fatalError("ncmib sysctl call failed"); } if (cpu_stats.cs_flags & CPUSTATS_ONLINE) { opl->cpus[cpu_index_c].cpuIndex = i; cpu_index_c++; } if (cpu_index_c == pl->cpuCount) break; } return pl; } void ProcessList_delete(ProcessList* this) { OpenBSDProcessList* opl = (OpenBSDProcessList*) this; if (opl->kd) { kvm_close(opl->kd); } free(opl->cpus); ProcessList_done(this); free(this); } static void OpenBSDProcessList_scanMemoryInfo(ProcessList* pl) { const int uvmexp_mib[] = { CTL_VM, VM_UVMEXP }; struct uvmexp uvmexp; size_t size_uvmexp = sizeof(uvmexp); if (sysctl(uvmexp_mib, 2, &uvmexp, &size_uvmexp, NULL, 0) < 0) { CRT_fatalError("uvmexp sysctl call failed"); } pl->totalMem = uvmexp.npages * pageSizeKB; pl->usedMem = (uvmexp.npages - uvmexp.free - uvmexp.paging) * pageSizeKB; // Taken from OpenBSD systat/iostat.c, top/machine.c and uvm_sysctl(9) const int bcache_mib[] = { CTL_VFS, VFS_GENERIC, VFS_BCACHESTAT }; struct bcachestats bcstats; size_t size_bcstats = sizeof(bcstats); if (sysctl(bcache_mib, 3, &bcstats, &size_bcstats, NULL, 0) < 0) { CRT_fatalError("cannot get vfs.bcachestat"); } pl->cachedMem = bcstats.numbufpages * pageSizeKB; /* * Copyright (c) 1994 Thorsten Lockert * All rights reserved. * * Taken almost directly from OpenBSD's top(1) * * Originally released under a BSD-3 license * Modified through htop developers applying GPL-2 */ int nswap = swapctl(SWAP_NSWAP, 0, 0); if (nswap > 0) { struct swapent swdev[nswap]; int rnswap = swapctl(SWAP_STATS, swdev, nswap); /* Total things up */ unsigned long long int total = 0, used = 0; for (int i = 0; i < rnswap; i++) { if (swdev[i].se_flags & SWF_ENABLE) { used += (swdev[i].se_inuse / (1024 / DEV_BSIZE)); total += (swdev[i].se_nblks / (1024 / DEV_BSIZE)); } } pl->totalSwap = total; pl->usedSwap = used; } else { pl->totalSwap = pl->usedSwap = 0; } } static char* OpenBSDProcessList_readProcessName(kvm_t* kd, const struct kinfo_proc* kproc, int* basenameEnd) { /* * Like OpenBSD's top(1), we try to fall back to the command name * (argv[0]) if we fail to construct the full command. */ char** arg = kvm_getargv(kd, kproc, 500); if (arg == NULL || *arg == NULL) { *basenameEnd = strlen(kproc->p_comm); return xStrdup(kproc->p_comm); } size_t len = 0; for (int i = 0; arg[i] != NULL; i++) { len += strlen(arg[i]) + 1; /* room for arg and trailing space or NUL */ } /* don't use xMalloc here - we want to handle huge argv's gracefully */ char* s; if ((s = malloc(len)) == NULL) { *basenameEnd = strlen(kproc->p_comm); return xStrdup(kproc->p_comm); } *s = '\0'; for (int i = 0; arg[i] != NULL; i++) { size_t n = strlcat(s, arg[i], len); if (i == 0) { *basenameEnd = MINIMUM(n, len - 1); } /* the trailing space should get truncated anyway */ strlcat(s, " ", len); } return s; } /* * Taken from OpenBSD's ps(1). */ static double getpcpu(const struct kinfo_proc* kp) { if (fscale == 0) return 0.0; return 100.0 * (double)kp->p_pctcpu / fscale; } static void OpenBSDProcessList_scanProcs(OpenBSDProcessList* this) { const Settings* settings = this->super.settings; const bool hideKernelThreads = settings->hideKernelThreads; const bool hideUserlandThreads = settings->hideUserlandThreads; int count = 0; const struct kinfo_proc* kprocs = kvm_getprocs(this->kd, KERN_PROC_KTHREAD | KERN_PROC_SHOW_THREADS, 0, sizeof(struct kinfo_proc), &count); for (int i = 0; i < count; i++) { const struct kinfo_proc* kproc = &kprocs[i]; /* Ignore main threads */ if (kproc->p_tid != -1) { Process* containingProcess = ProcessList_findProcess(&this->super, kproc->p_pid); if (containingProcess) { if (((OpenBSDProcess*)containingProcess)->addr == kproc->p_addr) continue; containingProcess->nlwp++; } } bool preExisting = false; Process* proc = ProcessList_getProcess(&this->super, (kproc->p_tid == -1) ? kproc->p_pid : kproc->p_tid, &preExisting, OpenBSDProcess_new); OpenBSDProcess* fp = (OpenBSDProcess*) proc; proc->show = ! ((hideKernelThreads && Process_isKernelThread(proc)) || (hideUserlandThreads && Process_isUserlandThread(proc))); if (!preExisting) { proc->ppid = kproc->p_ppid; proc->tpgid = kproc->p_tpgid; proc->tgid = kproc->p_pid; proc->session = kproc->p_sid; proc->pgrp = kproc->p__pgid; proc->st_uid = kproc->p_uid; proc->starttime_ctime = kproc->p_ustart_sec; Process_fillStarttimeBuffer(proc); proc->user = UsersTable_getRef(this->super.usersTable, proc->st_uid); ProcessList_add(&this->super, proc); proc->cmdline = OpenBSDProcessList_readProcessName(this->kd, kproc, &proc->basenameOffset); proc->tty_nr = kproc->p_tdev; const char* name = ((dev_t)kproc->p_tdev != NODEV) ? devname(kproc->p_tdev, S_IFCHR) : NULL; if (!name || String_eq(name, "??")) { free(proc->tty_name); proc->tty_name = NULL; } else { free_and_xStrdup(&proc->tty_name, name); } } else { if (settings->updateProcessNames) { free(proc->cmdline); proc->cmdline = OpenBSDProcessList_readProcessName(this->kd, kproc, &proc->basenameOffset); } } fp->addr = kproc->p_addr; proc->m_virt = kproc->p_vm_dsize * pageSizeKB; proc->m_resident = kproc->p_vm_rssize * pageSizeKB; proc->percent_mem = proc->m_resident / (float)this->super.totalMem * 100.0F; proc->percent_cpu = CLAMP(getpcpu(kproc), 0.0F, this->super.cpuCount * 100.0F); proc->nice = kproc->p_nice - 20; proc->time = 100 * (kproc->p_rtime_sec + ((kproc->p_rtime_usec + 500000) / 1000000)); proc->priority = kproc->p_priority - PZERO; proc->processor = kproc->p_cpuid; proc->minflt = kproc->p_uru_minflt; proc->majflt = kproc->p_uru_majflt; proc->nlwp = 1; switch (kproc->p_stat) { case SIDL: proc->state = 'I'; break; case SRUN: proc->state = 'P'; break; case SSLEEP: proc->state = 'S'; break; case SSTOP: proc->state = 'T'; break; case SZOMB: proc->state = 'Z'; break; case SDEAD: proc->state = 'D'; break; case SONPROC: proc->state = 'R'; break; default: proc->state = '?'; } if (Process_isKernelThread(proc)) { this->super.kernelThreads++; } else if (Process_isUserlandThread(proc)) { this->super.userlandThreads++; } this->super.totalTasks++; if (proc->state == 'R') { this->super.runningTasks++; } proc->updated = true; } } static unsigned long long saturatingSub(unsigned long long a, unsigned long long b) { return a > b ? a - b : 0; } static void getKernelCPUTimes(int cpuId, u_int64_t* times) { const int mib[] = { CTL_KERN, KERN_CPTIME2, cpuId }; size_t length = sizeof(*times) * CPUSTATES; if (sysctl(mib, 3, times, &length, NULL, 0) == -1 || length != sizeof(*times) * CPUSTATES) { CRT_fatalError("sysctl kern.cp_time2 failed"); } } static void kernelCPUTimesToHtop(const u_int64_t* times, CPUData* cpu) { unsigned long long totalTime = 0; for (int i = 0; i < CPUSTATES; i++) { totalTime += times[i]; } unsigned long long sysAllTime = times[CP_INTR] + times[CP_SYS]; // XXX Not sure if CP_SPIN should be added to sysAllTime. // See https://github.com/openbsd/src/commit/531d8034253fb82282f0f353c086e9ad827e031c #ifdef CP_SPIN sysAllTime += times[CP_SPIN]; #endif cpu->totalPeriod = saturatingSub(totalTime, cpu->totalTime); cpu->userPeriod = saturatingSub(times[CP_USER], cpu->userTime); cpu->nicePeriod = saturatingSub(times[CP_NICE], cpu->niceTime); cpu->sysPeriod = saturatingSub(times[CP_SYS], cpu->sysTime); cpu->sysAllPeriod = saturatingSub(sysAllTime, cpu->sysAllTime); #ifdef CP_SPIN cpu->spinPeriod = saturatingSub(times[CP_SPIN], cpu->spinTime); #endif cpu->intrPeriod = saturatingSub(times[CP_INTR], cpu->intrTime); cpu->idlePeriod = saturatingSub(times[CP_IDLE], cpu->idleTime); cpu->totalTime = totalTime; cpu->userTime = times[CP_USER]; cpu->niceTime = times[CP_NICE]; cpu->sysTime = times[CP_SYS]; cpu->sysAllTime = sysAllTime; #ifdef CP_SPIN cpu->spinTime = times[CP_SPIN]; #endif cpu->intrTime = times[CP_INTR]; cpu->idleTime = times[CP_IDLE]; } static void OpenBSDProcessList_scanCPUTime(OpenBSDProcessList* this) { u_int64_t kernelTimes[CPUSTATES] = {0}; u_int64_t avg[CPUSTATES] = {0}; for (unsigned int i = 0; i < this->super.cpuCount; i++) { getKernelCPUTimes(this->cpus[i].cpuIndex, kernelTimes); CPUData* cpu = this->cpus + i + 1; kernelCPUTimesToHtop(kernelTimes, cpu); avg[CP_USER] += cpu->userTime; avg[CP_NICE] += cpu->niceTime; avg[CP_SYS] += cpu->sysTime; #ifdef CP_SPIN avg[CP_SPIN] += cpu->spinTime; #endif avg[CP_INTR] += cpu->intrTime; avg[CP_IDLE] += cpu->idleTime; } for (int i = 0; i < CPUSTATES; i++) { avg[i] /= this->super.cpuCount; } kernelCPUTimesToHtop(avg, this->cpus); { const int mib[] = { CTL_HW, HW_CPUSPEED }; int cpuSpeed; size_t size = sizeof(cpuSpeed); if (sysctl(mib, 2, &cpuSpeed, &size, NULL, 0) == -1) { this->cpuSpeed = -1; } else { this->cpuSpeed = cpuSpeed; } } } void ProcessList_goThroughEntries(ProcessList* super, bool pauseProcessUpdate) { OpenBSDProcessList* opl = (OpenBSDProcessList*) super; OpenBSDProcessList_scanMemoryInfo(super); OpenBSDProcessList_scanCPUTime(opl); // in pause mode only gather global data for meters (CPU/memory/...) if (pauseProcessUpdate) { return; } OpenBSDProcessList_scanProcs(opl); }