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/*
htop - DarwinProcessList.c
(C) 2014 Hisham H. Muhammad
Released under the GNU GPLv2+, see the COPYING file
in the source distribution for its full text.
*/
#include "darwin/DarwinProcessList.h"
#include <errno.h>
#include <libproc.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <utmpx.h>
#include <sys/mman.h>
#include <sys/sysctl.h>
#include "CRT.h"
#include "ProcessList.h"
#include "darwin/DarwinProcess.h"
#include "darwin/Platform.h"
#include "darwin/PlatformHelpers.h"
#include "generic/openzfs_sysctl.h"
#include "zfs/ZfsArcStats.h"
static void ProcessList_getHostInfo(host_basic_info_data_t* p) {
mach_msg_type_number_t info_size = HOST_BASIC_INFO_COUNT;
if (0 != host_info(mach_host_self(), HOST_BASIC_INFO, (host_info_t)p, &info_size)) {
CRT_fatalError("Unable to retrieve host info");
}
}
static void ProcessList_freeCPULoadInfo(processor_cpu_load_info_t* p) {
if (NULL != p && NULL != *p) {
if (0 != munmap(*p, vm_page_size)) {
CRT_fatalError("Unable to free old CPU load information");
}
*p = NULL;
}
}
static unsigned ProcessList_allocateCPULoadInfo(processor_cpu_load_info_t* p) {
mach_msg_type_number_t info_size = sizeof(processor_cpu_load_info_t);
unsigned cpu_count;
// TODO Improving the accuracy of the load counts woule help a lot.
if (0 != host_processor_info(mach_host_self(), PROCESSOR_CPU_LOAD_INFO, &cpu_count, (processor_info_array_t*)p, &info_size)) {
CRT_fatalError("Unable to retrieve CPU info");
}
return cpu_count;
}
static void ProcessList_getVMStats(vm_statistics_t p) {
mach_msg_type_number_t info_size = HOST_VM_INFO_COUNT;
if (host_statistics(mach_host_self(), HOST_VM_INFO, (host_info_t)p, &info_size) != 0) {
CRT_fatalError("Unable to retrieve VM statistics");
}
}
static struct kinfo_proc* ProcessList_getKInfoProcs(size_t* count) {
int mib[4] = { CTL_KERN, KERN_PROC, KERN_PROC_ALL, 0 };
struct kinfo_proc* processes = NULL;
for (unsigned int retry = 0; retry < 4; retry++) {
size_t size = 0;
if (sysctl(mib, 4, NULL, &size, NULL, 0) < 0 || size == 0) {
CRT_fatalError("Unable to get size of kproc_infos");
}
size += 16 * retry * retry * sizeof(struct kinfo_proc);
processes = xRealloc(processes, size);
if (sysctl(mib, 4, processes, &size, NULL, 0) == 0) {
*count = size / sizeof(struct kinfo_proc);
return processes;
}
if (errno != ENOMEM)
break;
}
CRT_fatalError("Unable to get kinfo_procs");
}
ProcessList* ProcessList_new(UsersTable* usersTable, Hashtable* dynamicMeters, Hashtable* dynamicColumns, Hashtable* pidMatchList, uid_t userId) {
DarwinProcessList* this = xCalloc(1, sizeof(DarwinProcessList));
ProcessList_init(&this->super, Class(DarwinProcess), usersTable, dynamicMeters, dynamicColumns, pidMatchList, userId);
/* Initialize the CPU information */
this->super.activeCPUs = ProcessList_allocateCPULoadInfo(&this->prev_load);
// TODO: support offline CPUs and hot swapping
this->super.existingCPUs = this->super.activeCPUs;
ProcessList_getHostInfo(&this->host_info);
ProcessList_allocateCPULoadInfo(&this->curr_load);
/* Initialize the VM statistics */
ProcessList_getVMStats(&this->vm_stats);
/* Initialize the ZFS kstats, if zfs.kext loaded */
openzfs_sysctl_init(&this->zfs);
openzfs_sysctl_updateArcStats(&this->zfs);
this->super.kernelThreads = 0;
this->super.userlandThreads = 0;
this->super.totalTasks = 0;
this->super.runningTasks = 0;
return &this->super;
}
void ProcessList_delete(ProcessList* this) {
ProcessList_done(this);
free(this);
}
void ProcessList_goThroughEntries(ProcessList* super, bool pauseProcessUpdate) {
DarwinProcessList* dpl = (DarwinProcessList*)super;
bool preExisting = true;
struct kinfo_proc* ps;
size_t count;
DarwinProcess* proc;
/* Update the global data (CPU times and VM stats) */
ProcessList_freeCPULoadInfo(&dpl->prev_load);
dpl->prev_load = dpl->curr_load;
ProcessList_allocateCPULoadInfo(&dpl->curr_load);
ProcessList_getVMStats(&dpl->vm_stats);
openzfs_sysctl_updateArcStats(&dpl->zfs);
// in pause mode only gather global data for meters (CPU/memory/...)
if (pauseProcessUpdate) {
return;
}
/* Get the time difference */
dpl->global_diff = 0;
for (unsigned int i = 0; i < dpl->super.existingCPUs; ++i) {
for (size_t j = 0; j < CPU_STATE_MAX; ++j) {
dpl->global_diff += dpl->curr_load[i].cpu_ticks[j] - dpl->prev_load[i].cpu_ticks[j];
}
}
const double time_interval_ns = Platform_schedulerTicksToNanoseconds(dpl->global_diff) / (double) dpl->super.activeCPUs;
/* Clear the thread counts */
super->kernelThreads = 0;
super->userlandThreads = 0;
super->totalTasks = 0;
super->runningTasks = 0;
/* We use kinfo_procs for initial data since :
*
* 1) They always succeed.
* 2) The contain the basic information.
*
* We attempt to fill-in additional information with libproc.
*/
ps = ProcessList_getKInfoProcs(&count);
for (size_t i = 0; i < count; ++i) {
proc = (DarwinProcess*)ProcessList_getProcess(super, ps[i].kp_proc.p_pid, &preExisting, DarwinProcess_new);
DarwinProcess_setFromKInfoProc(&proc->super, &ps[i], preExisting);
DarwinProcess_setFromLibprocPidinfo(proc, dpl, time_interval_ns);
if (proc->super.st_uid != ps[i].kp_eproc.e_ucred.cr_uid) {
proc->super.st_uid = ps[i].kp_eproc.e_ucred.cr_uid;
proc->super.user = UsersTable_getRef(super->usersTable, proc->super.st_uid);
}
// Disabled for High Sierra due to bug in macOS High Sierra
bool isScanThreadSupported = !Platform_KernelVersionIsBetween((KernelVersion) {17, 0, 0}, (KernelVersion) {17, 5, 0});
if (isScanThreadSupported) {
DarwinProcess_scanThreads(proc);
}
super->totalTasks += 1;
if (!preExisting) {
ProcessList_add(super, &proc->super);
}
}
free(ps);
}
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;
}
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