diff options
Diffstat (limited to 'dragonflybsd/DragonFlyBSDProcessList.c')
-rw-r--r-- | dragonflybsd/DragonFlyBSDProcessList.c | 615 |
1 files changed, 615 insertions, 0 deletions
diff --git a/dragonflybsd/DragonFlyBSDProcessList.c b/dragonflybsd/DragonFlyBSDProcessList.c new file mode 100644 index 0000000..f46d6ce --- /dev/null +++ b/dragonflybsd/DragonFlyBSDProcessList.c @@ -0,0 +1,615 @@ +/* +htop - DragonFlyBSDProcessList.c +(C) 2014 Hisham H. Muhammad +(C) 2017 Diederik de Groot +Released under the GNU GPLv2+, see the COPYING file +in the source distribution for its full text. +*/ + +#include "dragonflybsd/DragonFlyBSDProcessList.h" + +#include <fcntl.h> +#include <limits.h> +#include <stddef.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> +#include <sys/types.h> +#include <sys/sysctl.h> +#include <sys/user.h> +#include <sys/param.h> + +#include "CRT.h" +#include "Macros.h" + +#include "dragonflybsd/DragonFlyBSDProcess.h" + + +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_kern_cp_time[2]; +static int MIB_kern_cp_times[2]; +static int kernelFScale; + +ProcessList* ProcessList_new(UsersTable* usersTable, Hashtable* dynamicMeters, Hashtable* dynamicColumns, Hashtable* pidMatchList, uid_t userId) { + size_t len; + char errbuf[_POSIX2_LINE_MAX]; + DragonFlyBSDProcessList* dfpl = xCalloc(1, sizeof(DragonFlyBSDProcessList)); + ProcessList* pl = (ProcessList*) dfpl; + ProcessList_init(pl, Class(DragonFlyBSDProcess), usersTable, dynamicMeters, dynamicColumns, pidMatchList, userId); + + // 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) + CRT_fatalError("Cannot get pagesize by sysctl"); + 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); + + int cpus = 1; + len = sizeof(cpus); + if (sysctlbyname("hw.ncpu", &cpus, &len, NULL, 0) != 0) { + cpus = 1; + } + + size_t sizeof_cp_time_array = sizeof(unsigned long) * CPUSTATES; + len = 2; sysctlnametomib("kern.cp_time", MIB_kern_cp_time, &len); + dfpl->cp_time_o = xCalloc(CPUSTATES, sizeof(unsigned long)); + dfpl->cp_time_n = xCalloc(CPUSTATES, sizeof(unsigned long)); + len = sizeof_cp_time_array; + + // fetch initial single (or average) CPU clicks from kernel + sysctl(MIB_kern_cp_time, 2, dfpl->cp_time_o, &len, NULL, 0); + + // on smp box, fetch rest of initial CPU's clicks + if (cpus > 1) { + len = 2; sysctlnametomib("kern.cp_times", MIB_kern_cp_times, &len); + dfpl->cp_times_o = xCalloc(cpus, sizeof_cp_time_array); + dfpl->cp_times_n = xCalloc(cpus, sizeof_cp_time_array); + len = cpus * sizeof_cp_time_array; + sysctl(MIB_kern_cp_times, 2, dfpl->cp_times_o, &len, NULL, 0); + } + + pl->existingCPUs = MAXIMUM(cpus, 1); + // TODO: support offline CPUs and hot swapping + pl->activeCPUs = pl->existingCPUs; + + if (cpus == 1 ) { + dfpl->cpus = xRealloc(dfpl->cpus, sizeof(CPUData)); + } else { + // on smp we need CPUs + 1 to store averages too (as kernel kindly provides that as well) + dfpl->cpus = xRealloc(dfpl->cpus, (pl->existingCPUs + 1) * sizeof(CPUData)); + } + + len = sizeof(kernelFScale); + if (sysctlbyname("kern.fscale", &kernelFScale, &len, NULL, 0) == -1) { + //sane default for kernel provided CPU percentage scaling, at least on x86 machines, in case this sysctl call failed + kernelFScale = 2048; + } + + dfpl->kd = kvm_openfiles(NULL, "/dev/null", NULL, 0, errbuf); + if (dfpl->kd == NULL) { + CRT_fatalError("kvm_openfiles() failed"); + } + + return pl; +} + +void ProcessList_delete(ProcessList* this) { + const DragonFlyBSDProcessList* dfpl = (DragonFlyBSDProcessList*) this; + if (dfpl->kd) { + kvm_close(dfpl->kd); + } + + if (dfpl->jails) { + Hashtable_delete(dfpl->jails); + } + free(dfpl->cp_time_o); + free(dfpl->cp_time_n); + free(dfpl->cp_times_o); + free(dfpl->cp_times_n); + free(dfpl->cpus); + + ProcessList_done(this); + free(this); +} + +static inline void DragonFlyBSDProcessList_scanCPUTime(ProcessList* pl) { + const DragonFlyBSDProcessList* dfpl = (DragonFlyBSDProcessList*) pl; + + unsigned int cpus = pl->existingCPUs; // actual CPU count + unsigned 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 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, dfpl->cp_time_n, &sizeof_cp_time_array, NULL, 0); + + // get rest of CPUs + if (cpus > 1) { + // on smp systems DragonFlyBSD kernel concats all CPU states into one long array in + // kern.cp_times sysctl OID + // we store averages in dfpl->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, dfpl->cp_times_n, &sizeof_cp_time_array, NULL, 0); + } + + for (unsigned int i = 0; i < maxcpu; i++) { + if (cpus == 1) { + // single CPU box + cp_time_n = dfpl->cp_time_n; + cp_time_o = dfpl->cp_time_o; + } else { + if (i == 0 ) { + // average + cp_time_n = dfpl->cp_time_n; + cp_time_o = dfpl->cp_time_o; + } else { + // specific smp cores + cp_times_offset = i - 1; + cp_time_n = dfpl->cp_times_n + (cp_times_offset * CPUSTATES); + cp_time_o = dfpl->cp_times_o + (cp_times_offset * CPUSTATES); + } + } + + // diff old vs new + unsigned long long total_o = 0; + unsigned long long total_n = 0; + unsigned long long total_d = 0; + 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 = &(dfpl->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 DragonFlyBSDProcessList_scanMemoryInfo(ProcessList* pl) { + DragonFlyBSDProcessList* dfpl = (DragonFlyBSDProcessList*) 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 + 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, &(dfpl->memActive), &len, NULL, 0); + dfpl->memActive *= pageSizeKb; + + sysctl(MIB_vm_stats_vm_v_wire_count, 4, &(dfpl->memWire), &len, NULL, 0); + dfpl->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; + pl->usedMem = dfpl->memActive + dfpl->memWire; + + struct kvm_swap swap[16]; + int nswap = kvm_getswapinfo(dfpl->kd, swap, ARRAYSIZE(swap), 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; +} + +//static void DragonFlyBSDProcessList_updateExe(const struct kinfo_proc* kproc, Process* proc) { +// const int mib[] = { CTL_KERN, KERN_PROC, KERN_PROC_PATHNAME, kproc->kp_pid }; +// char buffer[2048]; +// size_t size = sizeof(buffer); +// if (sysctl(mib, 4, buffer, &size, NULL, 0) != 0) { +// Process_updateExe(proc, NULL); +// return; +// } +// +// /* Kernel threads return an empty buffer */ +// if (buffer[0] == '\0') { +// Process_updateExe(proc, NULL); +// return; +// } +// +// Process_updateExe(proc, buffer); +//} + +static void DragonFlyBSDProcessList_updateExe(const struct kinfo_proc* kproc, Process* proc) { + if (Process_isKernelThread(proc)) + return; + + char path[32]; + xSnprintf(path, sizeof(path), "/proc/%d/file", kproc->kp_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 DragonFlyBSDProcessList_updateCwd(const struct kinfo_proc* kproc, Process* proc) { + const int mib[] = { CTL_KERN, KERN_PROC, KERN_PROC_CWD, kproc->kp_pid }; + char buffer[2048]; + size_t size = sizeof(buffer); + if (sysctl(mib, 4, buffer, &size, NULL, 0) != 0) { + free(proc->procCwd); + proc->procCwd = NULL; + return; + } + + /* Kernel threads return an empty buffer */ + if (buffer[0] == '\0') { + free(proc->procCwd); + proc->procCwd = NULL; + return; + } + + free_and_xStrdup(&proc->procCwd, buffer); +} + +static void DragonFlyBSDProcessList_updateProcessName(kvm_t* kd, const struct kinfo_proc* kproc, Process* proc) { + Process_updateComm(proc, kproc->kp_comm); + + char** argv = kvm_getargv(kd, kproc, 0); + if (!argv || !argv[0]) { + Process_updateCmdline(proc, kproc->kp_comm, 0, strlen(kproc->kp_comm)); + return; + } + + size_t len = 0; + for (int i = 0; argv[i]; i++) { + len += strlen(argv[i]) + 1; + } + + char* cmdline = xMalloc(len); + + char* at = cmdline; + int end = 0; + for (int i = 0; argv[i]; i++) { + at = stpcpy(at, argv[i]); + if (end == 0) { + end = at - cmdline; + } + *at++ = ' '; + } + at--; + *at = '\0'; + + Process_updateCmdline(proc, cmdline, 0, end); + + free(cmdline); +} + +static inline void DragonFlyBSDProcessList_scanJails(DragonFlyBSDProcessList* dfpl) { + size_t len; + char* jls; /* Jail list */ + char* curpos; + char* nextpos; + + if (sysctlbyname("jail.list", NULL, &len, NULL, 0) == -1) { + CRT_fatalError("initial sysctlbyname / jail.list failed"); + } + +retry: + if (len == 0) + return; + + jls = xMalloc(len); + + if (sysctlbyname("jail.list", jls, &len, NULL, 0) == -1) { + if (errno == ENOMEM) { + free(jls); + goto retry; + } + CRT_fatalError("sysctlbyname / jail.list failed"); + } + + if (dfpl->jails) { + Hashtable_delete(dfpl->jails); + } + + dfpl->jails = Hashtable_new(20, true); + curpos = jls; + while (curpos) { + int jailid; + char* str_hostname; + + nextpos = strchr(curpos, '\n'); + if (nextpos) { + *nextpos++ = 0; + } + + jailid = atoi(strtok(curpos, " ")); + str_hostname = strtok(NULL, " "); + + char* jname = (char*) (Hashtable_get(dfpl->jails, jailid)); + if (jname == NULL) { + jname = xStrdup(str_hostname); + Hashtable_put(dfpl->jails, jailid, jname); + } + + curpos = nextpos; + } + + free(jls); +} + +static char* DragonFlyBSDProcessList_readJailName(DragonFlyBSDProcessList* dfpl, int jailid) { + char* hostname; + char* jname; + + if (jailid != 0 && dfpl->jails && (hostname = (char*)Hashtable_get(dfpl->jails, jailid))) { + jname = xStrdup(hostname); + } else { + jname = xStrdup("-"); + } + + return jname; +} + +void ProcessList_goThroughEntries(ProcessList* super, bool pauseProcessUpdate) { + DragonFlyBSDProcessList* dfpl = (DragonFlyBSDProcessList*) super; + const Settings* settings = super->settings; + bool hideKernelThreads = settings->hideKernelThreads; + bool hideUserlandThreads = settings->hideUserlandThreads; + + DragonFlyBSDProcessList_scanMemoryInfo(super); + DragonFlyBSDProcessList_scanCPUTime(super); + DragonFlyBSDProcessList_scanJails(dfpl); + + // in pause mode only gather global data for meters (CPU/memory/...) + if (pauseProcessUpdate) { + return; + } + + int count = 0; + + const struct kinfo_proc* kprocs = kvm_getprocs(dfpl->kd, KERN_PROC_ALL | (!hideUserlandThreads ? KERN_PROC_FLAG_LWP : 0), 0, &count); + + for (int i = 0; i < count; i++) { + const struct kinfo_proc* kproc = &kprocs[i]; + bool preExisting = false; + bool ATTR_UNUSED isIdleProcess = false; + + // note: dragonflybsd kernel processes all have the same pid, so we misuse the kernel thread address to give them a unique identifier + Process* proc = ProcessList_getProcess(super, kproc->kp_ktaddr ? (pid_t)kproc->kp_ktaddr : kproc->kp_pid, &preExisting, DragonFlyBSDProcess_new); + DragonFlyBSDProcess* dfp = (DragonFlyBSDProcess*) proc; + + if (!preExisting) { + dfp->jid = kproc->kp_jailid; + if (kproc->kp_ktaddr && kproc->kp_flags & P_SYSTEM) { + // dfb kernel threads all have the same pid, so we misuse the kernel thread address to give them a unique identifier + proc->pid = (pid_t)kproc->kp_ktaddr; + proc->isKernelThread = true; + } else { + proc->pid = kproc->kp_pid; // process ID + proc->isKernelThread = false; + } + proc->isUserlandThread = kproc->kp_nthreads > 1; + proc->ppid = kproc->kp_ppid; // parent process id + proc->tpgid = kproc->kp_tpgid; // tty process group id + //proc->tgid = kproc->kp_lwp.kl_tid; // thread group id + proc->tgid = kproc->kp_pid; // thread group id + proc->pgrp = kproc->kp_pgid; // process group id + proc->session = kproc->kp_sid; + proc->st_uid = kproc->kp_uid; // user ID + proc->processor = kproc->kp_lwp.kl_origcpu; + proc->starttime_ctime = kproc->kp_start.tv_sec; + Process_fillStarttimeBuffer(proc); + proc->user = UsersTable_getRef(super->usersTable, proc->st_uid); + + proc->tty_nr = kproc->kp_tdev; // control terminal device number + const char* name = (kproc->kp_tdev != NODEV) ? devname(kproc->kp_tdev, S_IFCHR) : NULL; + if (!name) { + free(proc->tty_name); + proc->tty_name = NULL; + } else { + free_and_xStrdup(&proc->tty_name, name); + } + + DragonFlyBSDProcessList_updateExe(kproc, proc); + DragonFlyBSDProcessList_updateProcessName(dfpl->kd, kproc, proc); + + if (settings->ss->flags & PROCESS_FLAG_CWD) { + DragonFlyBSDProcessList_updateCwd(kproc, proc); + } + + ProcessList_add(super, proc); + + dfp->jname = DragonFlyBSDProcessList_readJailName(dfpl, kproc->kp_jailid); + } else { + proc->processor = kproc->kp_lwp.kl_cpuid; + if (dfp->jid != kproc->kp_jailid) { // process can enter jail anytime + dfp->jid = kproc->kp_jailid; + free(dfp->jname); + dfp->jname = DragonFlyBSDProcessList_readJailName(dfpl, kproc->kp_jailid); + } + // if there are reapers in the system, process can get reparented anytime + proc->ppid = kproc->kp_ppid; + if (proc->st_uid != kproc->kp_uid) { // some processes change users (eg. to lower privs) + proc->st_uid = kproc->kp_uid; + proc->user = UsersTable_getRef(super->usersTable, proc->st_uid); + } + if (settings->updateProcessNames) { + DragonFlyBSDProcessList_updateProcessName(dfpl->kd, kproc, proc); + } + } + + proc->m_virt = kproc->kp_vm_map_size / ONE_K; + proc->m_resident = kproc->kp_vm_rssize * pageSizeKb; + proc->nlwp = kproc->kp_nthreads; // number of lwp thread + proc->time = (kproc->kp_lwp.kl_uticks + kproc->kp_lwp.kl_sticks + kproc->kp_lwp.kl_iticks) / 10000; + + proc->percent_cpu = 100.0 * ((double)kproc->kp_lwp.kl_pctcpu / (double)kernelFScale); + proc->percent_mem = 100.0 * proc->m_resident / (double)(super->totalMem); + Process_updateCPUFieldWidths(proc->percent_cpu); + + if (proc->percent_cpu > 0.1) { + // system idle process should own all CPU time left regardless of CPU count + if (String_eq("idle", kproc->kp_comm)) { + isIdleProcess = true; + } + } + + if (kproc->kp_lwp.kl_pid != -1) + proc->priority = kproc->kp_lwp.kl_prio; + else + proc->priority = -kproc->kp_lwp.kl_tdprio; + + switch (kproc->kp_lwp.kl_rtprio.type) { + case RTP_PRIO_REALTIME: + proc->nice = PRIO_MIN - 1 - RTP_PRIO_MAX + kproc->kp_lwp.kl_rtprio.prio; + break; + case RTP_PRIO_IDLE: + proc->nice = PRIO_MAX + 1 + kproc->kp_lwp.kl_rtprio.prio; + break; + case RTP_PRIO_THREAD: + proc->nice = PRIO_MIN - 1 - RTP_PRIO_MAX - kproc->kp_lwp.kl_rtprio.prio; + break; + default: + proc->nice = kproc->kp_nice; + break; + } + + // would be nice if we could store multiple states in proc->state (as enum) and have writeField render them + /* Taken from: https://github.com/DragonFlyBSD/DragonFlyBSD/blob/c163a4d7ee9c6857ee4e04a3a2cbb50c3de29da1/sys/sys/proc_common.h */ + switch (kproc->kp_stat) { + case SIDL: proc->state = IDLE; isIdleProcess = true; break; + case SACTIVE: + switch (kproc->kp_lwp.kl_stat) { + case LSSLEEP: + if (kproc->kp_lwp.kl_flags & LWP_SINTR) // interruptible wait short/long + if (kproc->kp_lwp.kl_slptime >= MAXSLP) { + proc->state = IDLE; + isIdleProcess = true; + } else { + proc->state = SLEEPING; + } + else if (kproc->kp_lwp.kl_tdflags & TDF_SINTR) // interruptible lwkt wait + proc->state = SLEEPING; + else if (kproc->kp_paddr) // uninterruptible wait + proc->state = UNINTERRUPTIBLE_WAIT; + else // uninterruptible lwkt wait + proc->state = UNINTERRUPTIBLE_WAIT; + break; + case LSRUN: + if (kproc->kp_lwp.kl_stat == LSRUN) { + if (!(kproc->kp_lwp.kl_tdflags & (TDF_RUNNING | TDF_RUNQ))) + proc->state = QUEUED; + else + proc->state = RUNNING; + } + break; + case LSSTOP: + proc->state = STOPPED; + break; + default: + proc->state = PAGING; + break; + } + break; + case SSTOP: proc->state = STOPPED; break; + case SZOMB: proc->state = ZOMBIE; break; + case SCORE: proc->state = BLOCKED; break; + default: proc->state = UNKNOWN; + } + + if (kproc->kp_flags & P_SWAPPEDOUT) + proc->state = SLEEPING; + if (kproc->kp_flags & P_TRACED) + proc->state = TRACED; + if (kproc->kp_flags & P_JAILED) + proc->state = TRACED; + + if (Process_isKernelThread(proc)) + super->kernelThreads++; + + super->totalTasks++; + + if (proc->state == RUNNING) + super->runningTasks++; + + proc->show = ! ((hideKernelThreads && Process_isKernelThread(proc)) || (hideUserlandThreads && Process_isUserlandThread(proc))); + proc->updated = true; + } +} + +bool ProcessList_isCPUonline(const ProcessList* super, unsigned int id) { + assert(id < super->existingCPUs); + + // TODO: support offline CPUs and hot swapping + (void) super; (void) id; + + return true; +} |