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authorDaniel Lange <DLange@git.local>2016-04-11 13:01:07 +0200
committerDaniel Lange <DLange@git.local>2016-04-11 13:01:07 +0200
commitff9409b1737627857eb47f64f536a3f66b6a09a4 (patch)
tree61b631ba551e68a4f656b8b76ff7bd0d9955fc64 /freebsd/FreeBSDProcessList.c
parentf75ab6d2c11e8a8e18191b087564aedebbeb96c5 (diff)
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Imported Upstream version 2.0.0upstream/2.0.0
Diffstat (limited to 'freebsd/FreeBSDProcessList.c')
-rw-r--r--freebsd/FreeBSDProcessList.c532
1 files changed, 532 insertions, 0 deletions
diff --git a/freebsd/FreeBSDProcessList.c b/freebsd/FreeBSDProcessList.c
new file mode 100644
index 0000000..7c4a6db
--- /dev/null
+++ b/freebsd/FreeBSDProcessList.c
@@ -0,0 +1,532 @@
+/*
+htop - FreeBSDProcessList.c
+(C) 2014 Hisham H. Muhammad
+Released under the GNU GPL, see the COPYING file
+in the source distribution for its full text.
+*/
+
+#include "ProcessList.h"
+#include "FreeBSDProcessList.h"
+#include "FreeBSDProcess.h"
+
+#include <unistd.h>
+#include <stdlib.h>
+#include <sys/types.h>
+#include <sys/sysctl.h>
+#include <sys/user.h>
+#include <fcntl.h>
+#include <string.h>
+
+/*{
+
+#include <kvm.h>
+#include <sys/param.h>
+#include <sys/jail.h>
+#include <sys/uio.h>
+#include <sys/resource.h>
+
+#define JAIL_ERRMSGLEN 1024
+char jail_errmsg[JAIL_ERRMSGLEN];
+
+typedef struct CPUData_ {
+
+ double userPercent;
+ double nicePercent;
+ double systemPercent;
+ double irqPercent;
+ double idlePercent;
+ double systemAllPercent;
+
+} CPUData;
+
+typedef struct FreeBSDProcessList_ {
+ ProcessList super;
+ kvm_t* kd;
+
+ int zfsArcEnabled;
+
+ unsigned long long int memWire;
+ unsigned long long int memActive;
+ unsigned long long int memInactive;
+ unsigned long long int memFree;
+ unsigned long long int memZfsArc;
+
+
+ CPUData* cpus;
+
+ unsigned long *cp_time_o;
+ unsigned long *cp_time_n;
+
+ unsigned long *cp_times_o;
+ unsigned long *cp_times_n;
+
+} FreeBSDProcessList;
+
+}*/
+
+
+static int MIB_hw_physmem[2];
+static int MIB_vm_stats_vm_v_page_count[4];
+static int pageSize;
+static int pageSizeKb;
+
+static int MIB_vm_stats_vm_v_wire_count[4];
+static int MIB_vm_stats_vm_v_active_count[4];
+static int MIB_vm_stats_vm_v_cache_count[4];
+static int MIB_vm_stats_vm_v_inactive_count[4];
+static int MIB_vm_stats_vm_v_free_count[4];
+
+static int MIB_vfs_bufspace[2];
+
+static int MIB_kstat_zfs_misc_arcstats_size[5];
+
+static int MIB_kern_cp_time[2];
+static int MIB_kern_cp_times[2];
+static int kernelFScale;
+
+
+ProcessList* ProcessList_new(UsersTable* usersTable, Hashtable* pidWhiteList, uid_t userId) {
+ FreeBSDProcessList* fpl = xCalloc(1, sizeof(FreeBSDProcessList));
+ ProcessList* pl = (ProcessList*) fpl;
+ ProcessList_init(pl, Class(FreeBSDProcess), usersTable, pidWhiteList, userId);
+
+ size_t len;
+
+ // physical memory in system: hw.physmem
+ // physical page size: hw.pagesize
+ // usable pagesize : vm.stats.vm.v_page_size
+ len = 2; sysctlnametomib("hw.physmem", MIB_hw_physmem, &len);
+
+ len = sizeof(pageSize);
+ if (sysctlbyname("vm.stats.vm.v_page_size", &pageSize, &len, NULL, 0) == -1) {
+ pageSize = PAGE_SIZE;
+ pageSizeKb = PAGE_SIZE_KB;
+ } else {
+ pageSizeKb = pageSize / ONE_K;
+ }
+
+ // usable page count vm.stats.vm.v_page_count
+ // actually usable memory : vm.stats.vm.v_page_count * vm.stats.vm.v_page_size
+ len = 4; sysctlnametomib("vm.stats.vm.v_page_count", MIB_vm_stats_vm_v_page_count, &len);
+
+ len = 4; sysctlnametomib("vm.stats.vm.v_wire_count", MIB_vm_stats_vm_v_wire_count, &len);
+ len = 4; sysctlnametomib("vm.stats.vm.v_active_count", MIB_vm_stats_vm_v_active_count, &len);
+ len = 4; sysctlnametomib("vm.stats.vm.v_cache_count", MIB_vm_stats_vm_v_cache_count, &len);
+ len = 4; sysctlnametomib("vm.stats.vm.v_inactive_count", MIB_vm_stats_vm_v_inactive_count, &len);
+ len = 4; sysctlnametomib("vm.stats.vm.v_free_count", MIB_vm_stats_vm_v_free_count, &len);
+
+ len = 2; sysctlnametomib("vfs.bufspace", MIB_vfs_bufspace, &len);
+
+ len = sizeof(fpl->memZfsArc);
+ if (sysctlbyname("kstat.zfs.misc.arcstats.size", &fpl->memZfsArc, &len,
+ NULL, 0) == 0 && fpl->memZfsArc != 0) {
+ sysctlnametomib("kstat.zfs.misc.arcstats.size", MIB_kstat_zfs_misc_arcstats_size, &len);
+ fpl->zfsArcEnabled = 1;
+ } else {
+ fpl->zfsArcEnabled = 0;
+ }
+
+
+ int smp = 0;
+ len = sizeof(smp);
+
+ if (sysctlbyname("kern.smp.active", &smp, &len, NULL, 0) != 0 || len != sizeof(smp)) {
+ smp = 0;
+ }
+
+ int cpus = 1;
+ len = sizeof(cpus);
+
+ if (smp) {
+ int err = sysctlbyname("kern.smp.cpus", &cpus, &len, NULL, 0);
+ if (err) cpus = 1;
+ } else {
+ cpus = 1;
+ }
+
+ size_t sizeof_cp_time_array = sizeof(unsigned long) * CPUSTATES;
+ len = 2; sysctlnametomib("kern.cp_time", MIB_kern_cp_time, &len);
+ fpl->cp_time_o = xCalloc(cpus, sizeof_cp_time_array);
+ fpl->cp_time_n = xCalloc(cpus, sizeof_cp_time_array);
+ len = sizeof_cp_time_array;
+
+ // fetch intial single (or average) CPU clicks from kernel
+ sysctl(MIB_kern_cp_time, 2, fpl->cp_time_o, &len, NULL, 0);
+
+ // on smp box, fetch rest of intial CPU's clicks
+ if (cpus > 1) {
+ len = 2; sysctlnametomib("kern.cp_times", MIB_kern_cp_times, &len);
+ fpl->cp_times_o = xCalloc(cpus, sizeof_cp_time_array);
+ fpl->cp_times_n = xCalloc(cpus, sizeof_cp_time_array);
+ len = cpus * sizeof_cp_time_array;
+ sysctl(MIB_kern_cp_times, 2, fpl->cp_times_o, &len, NULL, 0);
+ }
+
+ pl->cpuCount = MAX(cpus, 1);
+
+ if (cpus == 1 ) {
+ fpl->cpus = xRealloc(fpl->cpus, sizeof(CPUData));
+ } else {
+ // on smp we need CPUs + 1 to store averages too (as kernel kindly provides that as well)
+ fpl->cpus = xRealloc(fpl->cpus, (pl->cpuCount + 1) * sizeof(CPUData));
+ }
+
+
+ len = sizeof(kernelFScale);
+ if (sysctlbyname("kern.fscale", &kernelFScale, &len, NULL, 0) == -1) {
+ //sane default for kernel provded CPU precentage scaling, at least on x86 machines, in case this sysctl call failed
+ kernelFScale = 2048;
+ }
+
+ fpl->kd = kvm_open(NULL, "/dev/null", NULL, 0, NULL);
+ assert(fpl->kd);
+
+ return pl;
+}
+
+void ProcessList_delete(ProcessList* this) {
+ const FreeBSDProcessList* fpl = (FreeBSDProcessList*) this;
+ if (fpl->kd) kvm_close(fpl->kd);
+
+ free(fpl->cp_time_o);
+ free(fpl->cp_time_n);
+ free(fpl->cp_times_o);
+ free(fpl->cp_times_n);
+ free(fpl->cpus);
+
+ ProcessList_done(this);
+ free(this);
+}
+
+static inline void FreeBSDProcessList_scanCPUTime(ProcessList* pl) {
+ const FreeBSDProcessList* fpl = (FreeBSDProcessList*) pl;
+
+ int cpus = pl->cpuCount; // actual CPU count
+ int maxcpu = cpus; // max iteration (in case we have average + smp)
+ int cp_times_offset;
+
+ assert(cpus > 0);
+
+ size_t sizeof_cp_time_array;
+
+ unsigned long *cp_time_n; // old clicks state
+ unsigned long *cp_time_o; // current clicks state
+
+ unsigned long long total_o = 0;
+ unsigned long long total_n = 0;
+ unsigned long long total_d = 0;
+ unsigned long cp_time_d[CPUSTATES];
+ double cp_time_p[CPUSTATES];
+
+ // get averages or single CPU clicks
+ sizeof_cp_time_array = sizeof(unsigned long) * CPUSTATES;
+ sysctl(MIB_kern_cp_time, 2, fpl->cp_time_n, &sizeof_cp_time_array, NULL, 0);
+
+ // get rest of CPUs
+ if (cpus > 1) {
+ // on smp systems FreeBSD kernel concats all CPU states into one long array in
+ // kern.cp_times sysctl OID
+ // we store averages in fpl->cpus[0], and actual cores after that
+ maxcpu = cpus + 1;
+ sizeof_cp_time_array = cpus * sizeof(unsigned long) * CPUSTATES;
+ sysctl(MIB_kern_cp_times, 2, fpl->cp_times_n, &sizeof_cp_time_array, NULL, 0);
+ }
+
+ for (int i = 0; i < maxcpu; i++) {
+ if (cpus == 1) {
+ // single CPU box
+ cp_time_n = fpl->cp_time_n;
+ cp_time_o = fpl->cp_time_o;
+ } else {
+ if (i == 0 ) {
+ // average
+ cp_time_n = fpl->cp_time_n;
+ cp_time_o = fpl->cp_time_o;
+ } else {
+ // specific smp cores
+ cp_times_offset = i - 1;
+ cp_time_n = fpl->cp_times_n + (cp_times_offset * CPUSTATES);
+ cp_time_o = fpl->cp_times_o + (cp_times_offset * CPUSTATES);
+ }
+ }
+
+ // diff old vs new
+ for (int s = 0; s < CPUSTATES; s++) {
+ cp_time_d[s] = cp_time_n[s] - cp_time_o[s];
+ total_o += cp_time_o[s];
+ total_n += cp_time_n[s];
+ }
+
+ // totals
+ total_d = total_n - total_o;
+ if (total_d < 1 ) total_d = 1;
+
+ // save current state as old and calc percentages
+ for (int s = 0; s < CPUSTATES; ++s) {
+ cp_time_o[s] = cp_time_n[s];
+ cp_time_p[s] = ((double)cp_time_d[s]) / ((double)total_d) * 100;
+ }
+
+ CPUData* cpuData = &(fpl->cpus[i]);
+ cpuData->userPercent = cp_time_p[CP_USER];
+ cpuData->nicePercent = cp_time_p[CP_NICE];
+ cpuData->systemPercent = cp_time_p[CP_SYS];
+ cpuData->irqPercent = cp_time_p[CP_INTR];
+ cpuData->systemAllPercent = cp_time_p[CP_SYS] + cp_time_p[CP_INTR];
+ // this one is not really used, but we store it anyway
+ cpuData->idlePercent = cp_time_p[CP_IDLE];
+ }
+}
+
+static inline void FreeBSDProcessList_scanMemoryInfo(ProcessList* pl) {
+ FreeBSDProcessList* fpl = (FreeBSDProcessList*) pl;
+
+ // @etosan:
+ // memory counter relationships seem to be these:
+ // total = active + wired + inactive + cache + free
+ // htop_used (unavail to anybody) = active + wired
+ // htop_cache (for cache meter) = buffers + cache
+ // user_free (avail to procs) = buffers + inactive + cache + free
+ //
+ // with ZFS ARC situation becomes bit muddled, as ARC behaves like "user_free"
+ // and belongs into cache, but is reported as wired by kernel
+ //
+ // htop_used = active + (wired - arc)
+ // htop_cache = buffers + cache + arc
+ size_t len = sizeof(pl->totalMem);
+
+ //disabled for now, as it is always smaller than phycal amount of memory...
+ //...to avoid "where is my memory?" questions
+ //sysctl(MIB_vm_stats_vm_v_page_count, 4, &(pl->totalMem), &len, NULL, 0);
+ //pl->totalMem *= pageSizeKb;
+ sysctl(MIB_hw_physmem, 2, &(pl->totalMem), &len, NULL, 0);
+ pl->totalMem /= 1024;
+
+ sysctl(MIB_vm_stats_vm_v_active_count, 4, &(fpl->memActive), &len, NULL, 0);
+ fpl->memActive *= pageSizeKb;
+
+ sysctl(MIB_vm_stats_vm_v_wire_count, 4, &(fpl->memWire), &len, NULL, 0);
+ fpl->memWire *= pageSizeKb;
+
+ sysctl(MIB_vfs_bufspace, 2, &(pl->buffersMem), &len, NULL, 0);
+ pl->buffersMem /= 1024;
+
+ sysctl(MIB_vm_stats_vm_v_cache_count, 4, &(pl->cachedMem), &len, NULL, 0);
+ pl->cachedMem *= pageSizeKb;
+
+ if (fpl->zfsArcEnabled) {
+ len = sizeof(fpl->memZfsArc);
+ sysctl(MIB_kstat_zfs_misc_arcstats_size, 5, &(fpl->memZfsArc), &len , NULL, 0);
+ fpl->memZfsArc /= 1024;
+ fpl->memWire -= fpl->memZfsArc;
+ pl->cachedMem += fpl->memZfsArc;
+ // maybe when we learn how to make custom memory meter
+ // we could do custom arc breakdown?
+ }
+
+ pl->usedMem = fpl->memActive + fpl->memWire;
+
+ //currently unused, same as with arc, custom meter perhaps
+ //sysctl(MIB_vm_stats_vm_v_inactive_count, 4, &(fpl->memInactive), &len, NULL, 0);
+ //sysctl(MIB_vm_stats_vm_v_free_count, 4, &(fpl->memFree), &len, NULL, 0);
+ //pl->freeMem = fpl->memInactive + fpl->memFree;
+ //pl->freeMem *= pageSizeKb;
+
+ struct kvm_swap swap[16];
+ int nswap = kvm_getswapinfo(fpl->kd, swap, sizeof(swap)/sizeof(swap[0]), 0);
+ pl->totalSwap = 0;
+ pl->usedSwap = 0;
+ for (int i = 0; i < nswap; i++) {
+ pl->totalSwap += swap[i].ksw_total;
+ pl->usedSwap += swap[i].ksw_used;
+ }
+ pl->totalSwap *= pageSizeKb;
+ pl->usedSwap *= pageSizeKb;
+
+ pl->sharedMem = 0; // currently unused
+}
+
+char* FreeBSDProcessList_readProcessName(kvm_t* kd, struct kinfo_proc* kproc, int* basenameEnd) {
+ char** argv = kvm_getargv(kd, kproc, 0);
+ if (!argv) {
+ return xStrdup(kproc->ki_comm);
+ }
+ int len = 0;
+ for (int i = 0; argv[i]; i++) {
+ len += strlen(argv[i]) + 1;
+ }
+ char* comm = xMalloc(len);
+ char* at = comm;
+ *basenameEnd = 0;
+ for (int i = 0; argv[i]; i++) {
+ at = stpcpy(at, argv[i]);
+ if (!*basenameEnd) {
+ *basenameEnd = at - comm;
+ }
+ *at = ' ';
+ at++;
+ }
+ at--;
+ *at = '\0';
+ return comm;
+}
+
+char* FreeBSDProcessList_readJailName(struct kinfo_proc* kproc) {
+ int jid;
+ struct iovec jiov[6];
+ char* jname;
+ char jnamebuf[MAXHOSTNAMELEN];
+
+ if (kproc->ki_jid != 0 ){
+ memset(jnamebuf, 0, sizeof(jnamebuf));
+ *(const void **)&jiov[0].iov_base = "jid";
+ jiov[0].iov_len = sizeof("jid");
+ jiov[1].iov_base = &kproc->ki_jid;
+ jiov[1].iov_len = sizeof(kproc->ki_jid);
+ *(const void **)&jiov[2].iov_base = "name";
+ jiov[2].iov_len = sizeof("name");
+ jiov[3].iov_base = jnamebuf;
+ jiov[3].iov_len = sizeof(jnamebuf);
+ *(const void **)&jiov[4].iov_base = "errmsg";
+ jiov[4].iov_len = sizeof("errmsg");
+ jiov[5].iov_base = jail_errmsg;
+ jiov[5].iov_len = JAIL_ERRMSGLEN;
+ jail_errmsg[0] = 0;
+ jid = jail_get(jiov, 6, 0);
+ if (jid < 0) {
+ if (!jail_errmsg[0])
+ snprintf(jail_errmsg, JAIL_ERRMSGLEN, "jail_get: %s", strerror(errno));
+ return NULL;
+ } else if (jid == kproc->ki_jid) {
+ jname = xStrdup(jnamebuf);
+ if (jname == NULL)
+ strerror_r(errno, jail_errmsg, JAIL_ERRMSGLEN);
+ return jname;
+ } else {
+ return NULL;
+ }
+ } else {
+ jnamebuf[0]='-';
+ jnamebuf[1]='\0';
+ jname = xStrdup(jnamebuf);
+ }
+ return jname;
+}
+
+void ProcessList_goThroughEntries(ProcessList* this) {
+ FreeBSDProcessList* fpl = (FreeBSDProcessList*) this;
+ Settings* settings = this->settings;
+ bool hideKernelThreads = settings->hideKernelThreads;
+ bool hideUserlandThreads = settings->hideUserlandThreads;
+
+ FreeBSDProcessList_scanMemoryInfo(this);
+ FreeBSDProcessList_scanCPUTime(this);
+
+ int cpus = this->cpuCount;
+ int count = 0;
+ struct kinfo_proc* kprocs = kvm_getprocs(fpl->kd, KERN_PROC_ALL, 0, &count);
+
+ for (int i = 0; i < count; i++) {
+ struct kinfo_proc* kproc = &kprocs[i];
+ bool preExisting = false;
+ bool isIdleProcess = false;
+ Process* proc = ProcessList_getProcess(this, kproc->ki_pid, &preExisting, (Process_New) FreeBSDProcess_new);
+ FreeBSDProcess* fp = (FreeBSDProcess*) proc;
+
+ proc->show = ! ((hideKernelThreads && Process_isKernelThread(fp)) || (hideUserlandThreads && Process_isUserlandThread(proc)));
+
+ if (!preExisting) {
+ fp->jid = kproc->ki_jid;
+ proc->pid = kproc->ki_pid;
+ if ( ! ((kproc->ki_pid == 0) || (kproc->ki_pid == 1) ) && kproc->ki_flag & P_SYSTEM)
+ fp->kernel = 1;
+ else
+ fp->kernel = 0;
+ proc->ppid = kproc->ki_ppid;
+ proc->tpgid = kproc->ki_tpgid;
+ proc->tgid = kproc->ki_pid;
+ proc->session = kproc->ki_sid;
+ proc->tty_nr = kproc->ki_tdev;
+ proc->pgrp = kproc->ki_pgid;
+ proc->st_uid = kproc->ki_uid;
+ proc->starttime_ctime = kproc->ki_start.tv_sec;
+ proc->user = UsersTable_getRef(this->usersTable, proc->st_uid);
+ ProcessList_add((ProcessList*)this, proc);
+ proc->comm = FreeBSDProcessList_readProcessName(fpl->kd, kproc, &proc->basenameOffset);
+ fp->jname = FreeBSDProcessList_readJailName(kproc);
+ } else {
+ if(fp->jid != kproc->ki_jid) {
+ // proces can enter jail anytime
+ fp->jid = kproc->ki_jid;
+ free(fp->jname);
+ fp->jname = FreeBSDProcessList_readJailName(kproc);
+ }
+ if (proc->ppid != kproc->ki_ppid) {
+ // if there are reapers in the system, proces can get reparented anytime
+ proc->ppid = kproc->ki_ppid;
+ }
+ if(proc->st_uid != kproc->ki_uid) {
+ // some proceses change users (eg. to lower privs)
+ proc->st_uid = kproc->ki_uid;
+ proc->user = UsersTable_getRef(this->usersTable, proc->st_uid);
+ }
+ if (settings->updateProcessNames) {
+ free(proc->comm);
+ proc->comm = FreeBSDProcessList_readProcessName(fpl->kd, kproc, &proc->basenameOffset);
+ }
+ }
+
+ // from FreeBSD source /src/usr.bin/top/machine.c
+ proc->m_size = kproc->ki_size / 1024;
+ proc->m_resident = kproc->ki_rssize * pageSizeKb;
+ proc->nlwp = kproc->ki_numthreads;
+ proc->time = (kproc->ki_runtime + 5000) / 10000;
+
+ proc->percent_cpu = 100.0 * ((double)kproc->ki_pctcpu / (double)kernelFScale);
+ if (proc->percent_cpu > 0.1) {
+ // system idle process should own all CPU time left regardless of CPU count
+ if ( strcmp("idle", kproc->ki_comm) == 0 ) {
+ isIdleProcess = true;
+ } else {
+ if (cpus > 1)
+ proc->percent_cpu = proc->percent_cpu / (double) cpus;
+ }
+ }
+ if (isIdleProcess == false && proc->percent_cpu >= 99.8) {
+ // don't break formatting
+ proc->percent_cpu = 99.8;
+ }
+
+ proc->priority = kproc->ki_pri.pri_level - PZERO;
+
+ if (strcmp("intr", kproc->ki_comm) == 0 && kproc->ki_flag & P_SYSTEM) {
+ proc->nice = 0; //@etosan: intr kernel process (not thread) has weird nice value
+ } else if (kproc->ki_pri.pri_class == PRI_TIMESHARE) {
+ proc->nice = kproc->ki_nice - NZERO;
+ } else if (PRI_IS_REALTIME(kproc->ki_pri.pri_class)) {
+ proc->nice = PRIO_MIN - 1 - (PRI_MAX_REALTIME - kproc->ki_pri.pri_level);
+ } else {
+ proc->nice = PRIO_MAX + 1 + kproc->ki_pri.pri_level - PRI_MIN_IDLE;
+ }
+
+ switch (kproc->ki_stat) {
+ case SIDL: proc->state = 'I'; break;
+ case SRUN: proc->state = 'R'; break;
+ case SSLEEP: proc->state = 'S'; break;
+ case SSTOP: proc->state = 'T'; break;
+ case SZOMB: proc->state = 'Z'; break;
+ case SWAIT: proc->state = 'D'; break;
+ case SLOCK: proc->state = 'L'; break;
+ default: proc->state = '?';
+ }
+
+ if (Process_isKernelThread(fp)) {
+ this->kernelThreads++;
+ }
+
+ this->totalTasks++;
+ if (proc->state == 'R')
+ this->runningTasks++;
+ proc->updated = true;
+ }
+}

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