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-rw-r--r--darwin/DarwinProcess.c492
1 files changed, 492 insertions, 0 deletions
diff --git a/darwin/DarwinProcess.c b/darwin/DarwinProcess.c
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+++ b/darwin/DarwinProcess.c
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+/*
+htop - DarwinProcess.c
+(C) 2015 Hisham H. Muhammad
+Released under the GNU GPLv2+, see the COPYING file
+in the source distribution for its full text.
+*/
+
+#include "darwin/DarwinProcess.h"
+
+#include <libproc.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <mach/mach.h>
+#include <sys/dirent.h>
+
+#include "CRT.h"
+#include "Process.h"
+#include "darwin/DarwinMachine.h"
+#include "darwin/Platform.h"
+
+
+const ProcessFieldData Process_fields[LAST_PROCESSFIELD] = {
+ [0] = { .name = "", .title = NULL, .description = NULL, .flags = 0, },
+ [PID] = { .name = "PID", .title = "PID", .description = "Process/thread ID", .flags = 0, .pidColumn = true, },
+ [COMM] = { .name = "Command", .title = "Command ", .description = "Command line", .flags = 0, },
+ [STATE] = { .name = "STATE", .title = "S ", .description = "Process state (S sleeping, R running, D disk, Z zombie, T traced, W paging)", .flags = 0, },
+ [PPID] = { .name = "PPID", .title = "PPID", .description = "Parent process ID", .flags = 0, .pidColumn = true, },
+ [PGRP] = { .name = "PGRP", .title = "PGRP", .description = "Process group ID", .flags = 0, .pidColumn = true, },
+ [SESSION] = { .name = "SESSION", .title = "SID", .description = "Process's session ID", .flags = 0, .pidColumn = true, },
+ [TTY] = { .name = "TTY", .title = "TTY ", .description = "Controlling terminal", .flags = PROCESS_FLAG_TTY, },
+ [TPGID] = { .name = "TPGID", .title = "TPGID", .description = "Process ID of the fg process group of the controlling terminal", .flags = 0, .pidColumn = true, },
+ [MINFLT] = { .name = "MINFLT", .title = " MINFLT ", .description = "Number of minor faults which have not required loading a memory page from disk", .flags = 0, .defaultSortDesc = true, },
+ [MAJFLT] = { .name = "MAJFLT", .title = " MAJFLT ", .description = "Number of major faults which have required loading a memory page from disk", .flags = 0, .defaultSortDesc = true, },
+ [PRIORITY] = { .name = "PRIORITY", .title = "PRI ", .description = "Kernel's internal priority for the process", .flags = 0, },
+ [NICE] = { .name = "NICE", .title = " NI ", .description = "Nice value (the higher the value, the more it lets other processes take priority)", .flags = 0, },
+ [STARTTIME] = { .name = "STARTTIME", .title = "START ", .description = "Time the process was started", .flags = 0, },
+ [ELAPSED] = { .name = "ELAPSED", .title = "ELAPSED ", .description = "Time since the process was started", .flags = 0, },
+ [PROCESSOR] = { .name = "PROCESSOR", .title = "CPU ", .description = "Id of the CPU the process last executed on", .flags = 0, },
+ [M_VIRT] = { .name = "M_VIRT", .title = " VIRT ", .description = "Total program size in virtual memory", .flags = 0, .defaultSortDesc = true, },
+ [M_RESIDENT] = { .name = "M_RESIDENT", .title = " RES ", .description = "Resident set size, size of the text and data sections, plus stack usage", .flags = 0, .defaultSortDesc = true, },
+ [ST_UID] = { .name = "ST_UID", .title = "UID", .description = "User ID of the process owner", .flags = 0, },
+ [PERCENT_CPU] = { .name = "PERCENT_CPU", .title = " CPU%", .description = "Percentage of the CPU time the process used in the last sampling", .flags = 0, .defaultSortDesc = true, .autoWidth = true, },
+ [PERCENT_NORM_CPU] = { .name = "PERCENT_NORM_CPU", .title = "NCPU%", .description = "Normalized percentage of the CPU time the process used in the last sampling (normalized by cpu count)", .flags = 0, .defaultSortDesc = true, .autoWidth = true, },
+ [PERCENT_MEM] = { .name = "PERCENT_MEM", .title = "MEM% ", .description = "Percentage of the memory the process is using, based on resident memory size", .flags = 0, .defaultSortDesc = true, },
+ [USER] = { .name = "USER", .title = "USER ", .description = "Username of the process owner (or user ID if name cannot be determined)", .flags = 0, },
+ [TIME] = { .name = "TIME", .title = " TIME+ ", .description = "Total time the process has spent in user and system time", .flags = 0, .defaultSortDesc = true, },
+ [NLWP] = { .name = "NLWP", .title = "NLWP ", .description = "Number of threads in the process", .flags = 0, },
+ [TGID] = { .name = "TGID", .title = "TGID", .description = "Thread group ID (i.e. process ID)", .flags = 0, .pidColumn = true, },
+ [PROC_EXE] = { .name = "EXE", .title = "EXE ", .description = "Basename of exe of the process from /proc/[pid]/exe", .flags = 0, },
+ [CWD] = { .name = "CWD", .title = "CWD ", .description = "The current working directory of the process", .flags = PROCESS_FLAG_CWD, },
+ [TRANSLATED] = { .name = "TRANSLATED", .title = "T ", .description = "Translation info (T translated, N native)", .flags = 0, },
+};
+
+Process* DarwinProcess_new(const Machine* host) {
+ DarwinProcess* this = xCalloc(1, sizeof(DarwinProcess));
+ Object_setClass(this, Class(DarwinProcess));
+ Process_init(&this->super, host);
+
+ this->utime = 0;
+ this->stime = 0;
+ this->taskAccess = true;
+ this->translated = false;
+
+ return &this->super;
+}
+
+void Process_delete(Object* cast) {
+ DarwinProcess* this = (DarwinProcess*) cast;
+ Process_done(&this->super);
+ // free platform-specific fields here
+ free(this);
+}
+
+static void DarwinProcess_rowWriteField(const Row* super, RichString* str, ProcessField field) {
+ const DarwinProcess* dp = (const DarwinProcess*) super;
+
+ char buffer[256]; buffer[255] = '\0';
+ int attr = CRT_colors[DEFAULT_COLOR];
+ size_t n = sizeof(buffer) - 1;
+
+ switch (field) {
+ // add Platform-specific fields here
+ case TRANSLATED: xSnprintf(buffer, n, "%c ", dp->translated ? 'T' : 'N'); break;
+ default:
+ Process_writeField(&dp->super, str, field);
+ return;
+ }
+
+ RichString_appendWide(str, attr, buffer);
+}
+
+static int DarwinProcess_compareByKey(const Process* v1, const Process* v2, ProcessField key) {
+ const DarwinProcess* p1 = (const DarwinProcess*)v1;
+ const DarwinProcess* p2 = (const DarwinProcess*)v2;
+
+ switch (key) {
+ // add Platform-specific fields here
+ case TRANSLATED:
+ return SPACESHIP_NUMBER(p1->translated, p2->translated);
+ default:
+ return Process_compareByKey_Base(v1, v2, key);
+ }
+}
+
+static void DarwinProcess_updateExe(pid_t pid, Process* proc) {
+ char path[PROC_PIDPATHINFO_MAXSIZE];
+
+ int r = proc_pidpath(pid, path, sizeof(path));
+ if (r <= 0)
+ return;
+
+ Process_updateExe(proc, path);
+}
+
+static void DarwinProcess_updateCwd(pid_t pid, Process* proc) {
+ struct proc_vnodepathinfo vpi;
+
+ int r = proc_pidinfo(pid, PROC_PIDVNODEPATHINFO, 0, &vpi, sizeof(vpi));
+ if (r <= 0) {
+ free(proc->procCwd);
+ proc->procCwd = NULL;
+ return;
+ }
+
+ if (!vpi.pvi_cdir.vip_path[0]) {
+ free(proc->procCwd);
+ proc->procCwd = NULL;
+ return;
+ }
+
+ free_and_xStrdup(&proc->procCwd, vpi.pvi_cdir.vip_path);
+}
+
+static void DarwinProcess_updateCmdLine(const struct kinfo_proc* k, Process* proc) {
+ Process_updateComm(proc, k->kp_proc.p_comm);
+
+ /* This function is from the old Mac version of htop. Originally from ps? */
+ int mib[3], argmax, nargs, c = 0;
+ size_t size;
+ char *procargs, *sp, *np, *cp;
+
+ /* Get the maximum process arguments size. */
+ mib[0] = CTL_KERN;
+ mib[1] = KERN_ARGMAX;
+
+ size = sizeof( argmax );
+ if ( sysctl( mib, 2, &argmax, &size, NULL, 0 ) == -1 ) {
+ goto ERROR_A;
+ }
+
+ /* Allocate space for the arguments. */
+ procargs = (char*)malloc(argmax);
+ if ( procargs == NULL ) {
+ goto ERROR_A;
+ }
+
+ /*
+ * Make a sysctl() call to get the raw argument space of the process.
+ * The layout is documented in start.s, which is part of the Csu
+ * project. In summary, it looks like:
+ *
+ * /---------------\ 0x00000000
+ * : :
+ * : :
+ * |---------------|
+ * | argc |
+ * |---------------|
+ * | arg[0] |
+ * |---------------|
+ * : :
+ * : :
+ * |---------------|
+ * | arg[argc - 1] |
+ * |---------------|
+ * | 0 |
+ * |---------------|
+ * | env[0] |
+ * |---------------|
+ * : :
+ * : :
+ * |---------------|
+ * | env[n] |
+ * |---------------|
+ * | 0 |
+ * |---------------| <-- Beginning of data returned by sysctl() is here.
+ * | argc |
+ * |---------------|
+ * | exec_path |
+ * |:::::::::::::::|
+ * | |
+ * | String area. |
+ * | |
+ * |---------------| <-- Top of stack.
+ * : :
+ * : :
+ * \---------------/ 0xffffffff
+ */
+ mib[0] = CTL_KERN;
+ mib[1] = KERN_PROCARGS2;
+ mib[2] = k->kp_proc.p_pid;
+
+ size = ( size_t ) argmax;
+ if ( sysctl( mib, 3, procargs, &size, NULL, 0 ) == -1 ) {
+ goto ERROR_B;
+ }
+
+ memcpy( &nargs, procargs, sizeof( nargs ) );
+ cp = procargs + sizeof( nargs );
+
+ /* Skip the saved exec_path. */
+ for ( ; cp < &procargs[size]; cp++ ) {
+ if ( *cp == '\0' ) {
+ /* End of exec_path reached. */
+ break;
+ }
+ }
+ if ( cp == &procargs[size] ) {
+ goto ERROR_B;
+ }
+
+ /* Skip trailing '\0' characters. */
+ for ( ; cp < &procargs[size]; cp++ ) {
+ if ( *cp != '\0' ) {
+ /* Beginning of first argument reached. */
+ break;
+ }
+ }
+ if ( cp == &procargs[size] ) {
+ goto ERROR_B;
+ }
+ /* Save where the argv[0] string starts. */
+ sp = cp;
+
+ int end = 0;
+ for ( np = NULL; c < nargs && cp < &procargs[size]; cp++ ) {
+ if ( *cp == '\0' ) {
+ c++;
+ if ( np != NULL ) {
+ /* Convert previous '\0'. */
+ *np = ' ';
+ }
+ /* Note location of current '\0'. */
+ np = cp;
+ if (end == 0) {
+ end = cp - sp;
+ }
+ }
+ }
+
+ /*
+ * sp points to the beginning of the arguments/environment string, and
+ * np should point to the '\0' terminator for the string.
+ */
+ if ( np == NULL || np == sp ) {
+ /* Empty or unterminated string. */
+ goto ERROR_B;
+ }
+ if (end == 0) {
+ end = np - sp;
+ }
+
+ Process_updateCmdline(proc, sp, 0, end);
+
+ /* Clean up. */
+ free( procargs );
+
+ return;
+
+ERROR_B:
+ free( procargs );
+
+ERROR_A:
+ Process_updateCmdline(proc, k->kp_proc.p_comm, 0, strlen(k->kp_proc.p_comm));
+}
+
+// Converts nanoseconds to hundredths of a second (centiseconds) as needed by the "time" field of the Process struct.
+static long long int nanosecondsToCentiseconds(uint64_t nanoseconds) {
+ const uint64_t centiseconds_per_second = 100;
+ const uint64_t nanoseconds_per_second = 1e9;
+ return nanoseconds / nanoseconds_per_second * centiseconds_per_second;
+}
+
+static char* DarwinProcess_getDevname(dev_t dev) {
+ if (dev == NODEV) {
+ return NULL;
+ }
+ char buf[sizeof("/dev/") + MAXNAMLEN];
+ char* name = devname_r(dev, S_IFCHR, buf, MAXNAMLEN);
+ if (name) {
+ return xStrdup(name);
+ }
+ return NULL;
+}
+
+void DarwinProcess_setFromKInfoProc(Process* proc, const struct kinfo_proc* ps, bool exists) {
+ DarwinProcess* dp = (DarwinProcess*)proc;
+ const Settings* settings = proc->super.host->settings;
+
+ const struct extern_proc* ep = &ps->kp_proc;
+
+ /* UNSET HERE :
+ *
+ * processor
+ * user (set at ProcessTable level)
+ * nlwp
+ * percent_cpu
+ * percent_mem
+ * m_virt
+ * m_resident
+ * minflt
+ * majflt
+ */
+
+ /* First, the "immutable" parts */
+ if (!exists) {
+ /* Set the PID/PGID/etc. */
+ Process_setPid(proc, ep->p_pid);
+ Process_setThreadGroup(proc, ep->p_pid);
+ Process_setParent(proc, ps->kp_eproc.e_ppid);
+ proc->pgrp = ps->kp_eproc.e_pgid;
+ proc->session = 0; /* TODO Get the session id */
+ proc->tpgid = ps->kp_eproc.e_tpgid;
+ proc->isKernelThread = false;
+ proc->isUserlandThread = false;
+ dp->translated = ps->kp_proc.p_flag & P_TRANSLATED;
+ proc->tty_nr = ps->kp_eproc.e_tdev;
+ proc->tty_name = NULL;
+
+ proc->starttime_ctime = ep->p_starttime.tv_sec;
+ Process_fillStarttimeBuffer(proc);
+
+ DarwinProcess_updateExe(ep->p_pid, proc);
+ DarwinProcess_updateCmdLine(ps, proc);
+
+ if (settings->ss->flags & PROCESS_FLAG_CWD) {
+ DarwinProcess_updateCwd(ep->p_pid, proc);
+ }
+ }
+
+ if (proc->tty_name == NULL && (dev_t)proc->tty_nr != NODEV) {
+ /* The call to devname() is extremely expensive (due to lstat)
+ * and represents ~95% of htop's CPU usage when there is high
+ * process turnover.
+ *
+ * To mitigate this we only fetch TTY information if the TTY
+ * field is enabled in the settings.
+ */
+ if (settings->ss->flags & PROCESS_FLAG_TTY) {
+ proc->tty_name = DarwinProcess_getDevname(proc->tty_nr);
+ if (!proc->tty_name) {
+ /* devname failed: prevent us from calling it again */
+ proc->tty_nr = NODEV;
+ }
+ }
+ }
+
+ /* Mutable information */
+ proc->nice = ep->p_nice;
+ proc->priority = ep->p_priority;
+
+ proc->state = (ep->p_stat == SZOMB) ? ZOMBIE : UNKNOWN;
+
+ /* Make sure the updated flag is set */
+ proc->super.updated = true;
+}
+
+void DarwinProcess_setFromLibprocPidinfo(DarwinProcess* proc, DarwinProcessTable* dpt, double timeIntervalNS) {
+ struct proc_taskinfo pti;
+
+ if (sizeof(pti) == proc_pidinfo(Process_getPid(&proc->super), PROC_PIDTASKINFO, 0, &pti, sizeof(pti))) {
+ const DarwinMachine* dhost = (const DarwinMachine*) proc->super.super.host;
+
+ uint64_t total_existing_time_ns = proc->stime + proc->utime;
+
+ uint64_t user_time_ns = Platform_machTicksToNanoseconds(pti.pti_total_user);
+ uint64_t system_time_ns = Platform_machTicksToNanoseconds(pti.pti_total_system);
+
+ uint64_t total_current_time_ns = user_time_ns + system_time_ns;
+
+ if (total_existing_time_ns && 1E-6 < timeIntervalNS) {
+ uint64_t total_time_diff_ns = total_current_time_ns - total_existing_time_ns;
+ proc->super.percent_cpu = ((double)total_time_diff_ns / timeIntervalNS) * 100.0;
+ } else {
+ proc->super.percent_cpu = 0.0;
+ }
+ Process_updateCPUFieldWidths(proc->super.percent_cpu);
+
+ proc->super.time = nanosecondsToCentiseconds(total_current_time_ns);
+ proc->super.nlwp = pti.pti_threadnum;
+ proc->super.m_virt = pti.pti_virtual_size / ONE_K;
+ proc->super.m_resident = pti.pti_resident_size / ONE_K;
+ proc->super.majflt = pti.pti_faults;
+ proc->super.percent_mem = (double)pti.pti_resident_size * 100.0
+ / (double)dhost->host_info.max_mem;
+
+ proc->stime = system_time_ns;
+ proc->utime = user_time_ns;
+
+ dpt->super.kernelThreads += 0; /*pti.pti_threads_system;*/
+ dpt->super.userlandThreads += pti.pti_threadnum; /*pti.pti_threads_user;*/
+ dpt->super.totalTasks += pti.pti_threadnum;
+ dpt->super.runningTasks += pti.pti_numrunning;
+ }
+}
+
+/*
+ * Scan threads for process state information.
+ * Based on: http://stackoverflow.com/questions/6788274/ios-mac-cpu-usage-for-thread
+ * and https://github.com/max-horvath/htop-osx/blob/e86692e869e30b0bc7264b3675d2a4014866ef46/ProcessList.c
+ */
+void DarwinProcess_scanThreads(DarwinProcess* dp) {
+ Process* proc = (Process*) dp;
+ kern_return_t ret;
+
+ if (!dp->taskAccess) {
+ return;
+ }
+
+ if (proc->state == ZOMBIE) {
+ return;
+ }
+
+ task_t port;
+ ret = task_for_pid(mach_task_self(), Process_getPid(proc), &port);
+ if (ret != KERN_SUCCESS) {
+ dp->taskAccess = false;
+ return;
+ }
+
+ task_info_data_t tinfo;
+ mach_msg_type_number_t task_info_count = TASK_INFO_MAX;
+ ret = task_info(port, TASK_BASIC_INFO, (task_info_t) tinfo, &task_info_count);
+ if (ret != KERN_SUCCESS) {
+ dp->taskAccess = false;
+ return;
+ }
+
+ thread_array_t thread_list;
+ mach_msg_type_number_t thread_count;
+ ret = task_threads(port, &thread_list, &thread_count);
+ if (ret != KERN_SUCCESS) {
+ dp->taskAccess = false;
+ mach_port_deallocate(mach_task_self(), port);
+ return;
+ }
+
+ integer_t run_state = 999;
+ for (unsigned int i = 0; i < thread_count; i++) {
+ thread_info_data_t thinfo;
+ mach_msg_type_number_t thread_info_count = THREAD_BASIC_INFO_COUNT;
+ ret = thread_info(thread_list[i], THREAD_BASIC_INFO, (thread_info_t)thinfo, &thread_info_count);
+ if (ret == KERN_SUCCESS) {
+ thread_basic_info_t basic_info_th = (thread_basic_info_t) thinfo;
+ if (basic_info_th->run_state < run_state) {
+ run_state = basic_info_th->run_state;
+ }
+ mach_port_deallocate(mach_task_self(), thread_list[i]);
+ }
+ }
+ vm_deallocate(mach_task_self(), (vm_address_t) thread_list, sizeof(thread_port_array_t) * thread_count);
+ mach_port_deallocate(mach_task_self(), port);
+
+ /* Taken from: https://github.com/apple/darwin-xnu/blob/2ff845c2e033bd0ff64b5b6aa6063a1f8f65aa32/osfmk/mach/thread_info.h#L129 */
+ switch (run_state) {
+ case TH_STATE_RUNNING: proc->state = RUNNING; break;
+ case TH_STATE_STOPPED: proc->state = STOPPED; break;
+ case TH_STATE_WAITING: proc->state = WAITING; break;
+ case TH_STATE_UNINTERRUPTIBLE: proc->state = UNINTERRUPTIBLE_WAIT; break;
+ case TH_STATE_HALTED: proc->state = BLOCKED; break;
+ default: proc->state = UNKNOWN;
+ }
+}
+
+
+const ProcessClass DarwinProcess_class = {
+ .super = {
+ .super = {
+ .extends = Class(Process),
+ .display = Row_display,
+ .delete = Process_delete,
+ .compare = Process_compare
+ },
+ .isHighlighted = Process_rowIsHighlighted,
+ .isVisible = Process_rowIsVisible,
+ .matchesFilter = Process_rowMatchesFilter,
+ .compareByParent = Process_compareByParent,
+ .sortKeyString = Process_rowGetSortKey,
+ .writeField = DarwinProcess_rowWriteField
+ },
+ .compareByKey = DarwinProcess_compareByKey
+};
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