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_psutil_osx.c
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_psutil_osx.c
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/*
* Copyright (c) 2009, Giampaolo Rodola'. All rights reserved.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*
* OS X platform-specific module methods for _psutil_osx
*/
#include <Python.h>
#include <assert.h>
#include <errno.h>
#include <stdbool.h>
#include <stdlib.h>
#include <stdio.h>
#include <utmpx.h>
#include <sys/sysctl.h>
#include <sys/vmmeter.h>
#include <libproc.h>
#include <sys/proc_info.h>
#include <netinet/tcp_fsm.h>
#include <arpa/inet.h>
#include <net/if_dl.h>
#include <pwd.h>
#include <mach/mach.h>
#include <mach/task.h>
#include <mach/mach_init.h>
#include <mach/host_info.h>
#include <mach/mach_host.h>
#include <mach/mach_traps.h>
#include <mach/mach_vm.h>
#include <mach/shared_region.h>
#include <mach-o/loader.h>
#include <CoreFoundation/CoreFoundation.h>
#include <IOKit/IOKitLib.h>
#include <IOKit/storage/IOBlockStorageDriver.h>
#include <IOKit/storage/IOMedia.h>
#include <IOKit/IOBSD.h>
#include "_psutil_common.h"
#include "_psutil_posix.h"
#include "arch/osx/process_info.h"
#define PSUTIL_TV2DOUBLE(t) ((t).tv_sec + (t).tv_usec / 1000000.0)
/*
* A wrapper around host_statistics() invoked with HOST_VM_INFO.
*/
int
psutil_sys_vminfo(vm_statistics_data_t *vmstat) {
kern_return_t ret;
mach_msg_type_number_t count = sizeof(*vmstat) / sizeof(integer_t);
mach_port_t mport = mach_host_self();
ret = host_statistics(mport, HOST_VM_INFO, (host_info_t)vmstat, &count);
if (ret != KERN_SUCCESS) {
PyErr_Format(
PyExc_RuntimeError,
"host_statistics(HOST_VM_INFO) syscall failed: %s",
mach_error_string(ret));
return 0;
}
mach_port_deallocate(mach_task_self(), mport);
return 1;
}
/*
* Return a Python list of all the PIDs running on the system.
*/
static PyObject *
psutil_pids(PyObject *self, PyObject *args) {
kinfo_proc *proclist = NULL;
kinfo_proc *orig_address = NULL;
size_t num_processes;
size_t idx;
PyObject *py_pid = NULL;
PyObject *py_retlist = PyList_New(0);
if (py_retlist == NULL)
return NULL;
if (psutil_get_proc_list(&proclist, &num_processes) != 0) {
if (errno != 0) {
PyErr_SetFromErrno(PyExc_OSError);
}
else {
PyErr_SetString(PyExc_RuntimeError,
"failed to retrieve process list");
}
goto error;
}
if (num_processes > 0) {
// save the address of proclist so we can free it later
orig_address = proclist;
for (idx = 0; idx < num_processes; idx++) {
py_pid = Py_BuildValue("i", proclist->kp_proc.p_pid);
if (! py_pid)
goto error;
if (PyList_Append(py_retlist, py_pid))
goto error;
Py_DECREF(py_pid);
proclist++;
}
free(orig_address);
}
return py_retlist;
error:
Py_XDECREF(py_pid);
Py_DECREF(py_retlist);
if (orig_address != NULL)
free(orig_address);
return NULL;
}
/*
* Return multiple process info as a Python tuple in one shot by
* using sysctl() and filling up a kinfo_proc struct.
* It should be possible to do this for all processes without
* incurring into permission (EPERM) errors.
* This will also succeed for zombie processes returning correct
* information.
*/
static PyObject *
psutil_proc_kinfo_oneshot(PyObject *self, PyObject *args) {
long pid;
struct kinfo_proc kp;
PyObject *py_name;
PyObject *py_retlist;
if (! PyArg_ParseTuple(args, "l", &pid))
return NULL;
if (psutil_get_kinfo_proc(pid, &kp) == -1)
return NULL;
py_name = PyUnicode_DecodeFSDefault(kp.kp_proc.p_comm);
if (! py_name) {
// Likely a decoding error. We don't want to fail the whole
// operation. The python module may retry with proc_name().
PyErr_Clear();
py_name = Py_None;
}
py_retlist = Py_BuildValue(
"lllllllidiO",
(long)kp.kp_eproc.e_ppid, // (long) ppid
(long)kp.kp_eproc.e_pcred.p_ruid, // (long) real uid
(long)kp.kp_eproc.e_ucred.cr_uid, // (long) effective uid
(long)kp.kp_eproc.e_pcred.p_svuid, // (long) saved uid
(long)kp.kp_eproc.e_pcred.p_rgid, // (long) real gid
(long)kp.kp_eproc.e_ucred.cr_groups[0], // (long) effective gid
(long)kp.kp_eproc.e_pcred.p_svgid, // (long) saved gid
kp.kp_eproc.e_tdev, // (int) tty nr
PSUTIL_TV2DOUBLE(kp.kp_proc.p_starttime), // (double) create time
(int)kp.kp_proc.p_stat, // (int) status
py_name // (pystr) name
);
if (py_retlist != NULL) {
// XXX shall we decref() also in case of Py_BuildValue() error?
Py_DECREF(py_name);
}
return py_retlist;
}
/*
* Return multiple process info as a Python tuple in one shot by
* using proc_pidinfo(PROC_PIDTASKINFO) and filling a proc_taskinfo
* struct.
* Contrarily from proc_kinfo above this function will fail with
* EACCES for PIDs owned by another user and with ESRCH for zombie
* processes.
*/
static PyObject *
psutil_proc_pidtaskinfo_oneshot(PyObject *self, PyObject *args) {
long pid;
struct proc_taskinfo pti;
if (! PyArg_ParseTuple(args, "l", &pid))
return NULL;
if (psutil_proc_pidinfo(pid, PROC_PIDTASKINFO, 0, &pti, sizeof(pti)) <= 0)
return NULL;
return Py_BuildValue(
"(ddKKkkkk)",
(float)pti.pti_total_user / 1000000000.0, // (float) cpu user time
(float)pti.pti_total_system / 1000000000.0, // (float) cpu sys time
// Note about memory: determining other mem stats on OSX is a mess:
// http://www.opensource.apple.com/source/top/top-67/libtop.c?txt
// I just give up.
// struct proc_regioninfo pri;
// psutil_proc_pidinfo(pid, PROC_PIDREGIONINFO, 0, &pri, sizeof(pri))
pti.pti_resident_size, // (uns long long) rss
pti.pti_virtual_size, // (uns long long) vms
pti.pti_faults, // (uns long) number of page faults (pages)
pti.pti_pageins, // (uns long) number of actual pageins (pages)
pti.pti_threadnum, // (uns long) num threads
// Unvoluntary value seems not to be available;
// pti.pti_csw probably refers to the sum of the two;
// getrusage() numbers seems to confirm this theory.
pti.pti_csw // (uns long) voluntary ctx switches
);
}
/*
* Return process name from kinfo_proc as a Python string.
*/
static PyObject *
psutil_proc_name(PyObject *self, PyObject *args) {
long pid;
struct kinfo_proc kp;
if (! PyArg_ParseTuple(args, "l", &pid))
return NULL;
if (psutil_get_kinfo_proc(pid, &kp) == -1)
return NULL;
return PyUnicode_DecodeFSDefault(kp.kp_proc.p_comm);
}
/*
* Return process current working directory.
* Raises NSP in case of zombie process.
*/
static PyObject *
psutil_proc_cwd(PyObject *self, PyObject *args) {
long pid;
struct proc_vnodepathinfo pathinfo;
if (! PyArg_ParseTuple(args, "l", &pid))
return NULL;
if (psutil_proc_pidinfo(
pid, PROC_PIDVNODEPATHINFO, 0, &pathinfo, sizeof(pathinfo)) <= 0)
{
return NULL;
}
return PyUnicode_DecodeFSDefault(pathinfo.pvi_cdir.vip_path);
}
/*
* Return path of the process executable.
*/
static PyObject *
psutil_proc_exe(PyObject *self, PyObject *args) {
long pid;
char buf[PATH_MAX];
int ret;
if (! PyArg_ParseTuple(args, "l", &pid))
return NULL;
errno = 0;
ret = proc_pidpath((pid_t)pid, &buf, sizeof(buf));
if (ret == 0) {
if (pid == 0)
AccessDenied();
else
psutil_raise_for_pid(pid, "proc_pidpath() syscall failed");
return NULL;
}
return PyUnicode_DecodeFSDefault(buf);
}
/*
* Return process cmdline as a Python list of cmdline arguments.
*/
static PyObject *
psutil_proc_cmdline(PyObject *self, PyObject *args) {
long pid;
PyObject *py_retlist = NULL;
if (! PyArg_ParseTuple(args, "l", &pid))
return NULL;
// get the commandline, defined in arch/osx/process_info.c
py_retlist = psutil_get_cmdline(pid);
return py_retlist;
}
/*
* Return process environment as a Python string.
*/
static PyObject *
psutil_proc_environ(PyObject *self, PyObject *args) {
long pid;
PyObject *py_retdict = NULL;
if (! PyArg_ParseTuple(args, "l", &pid))
return NULL;
// get the environment block, defined in arch/osx/process_info.c
py_retdict = psutil_get_environ(pid);
return py_retdict;
}
/*
* Return a list of tuples for every process memory maps.
* 'procstat' cmdline utility has been used as an example.
*/
static PyObject *
psutil_proc_memory_maps(PyObject *self, PyObject *args) {
char buf[PATH_MAX];
char addr_str[34];
char perms[8];
int pagesize = getpagesize();
long pid;
kern_return_t err = KERN_SUCCESS;
mach_port_t task = MACH_PORT_NULL;
uint32_t depth = 1;
vm_address_t address = 0;
vm_size_t size = 0;
PyObject *py_tuple = NULL;
PyObject *py_path = NULL;
PyObject *py_list = PyList_New(0);
if (py_list == NULL)
return NULL;
if (! PyArg_ParseTuple(args, "l", &pid))
goto error;
err = task_for_pid(mach_task_self(), (pid_t)pid, &task);
if (err != KERN_SUCCESS) {
psutil_raise_for_pid(pid, "task_for_pid() failed");
goto error;
}
while (1) {
py_tuple = NULL;
struct vm_region_submap_info_64 info;
mach_msg_type_number_t count = VM_REGION_SUBMAP_INFO_COUNT_64;
err = vm_region_recurse_64(task, &address, &size, &depth,
(vm_region_info_64_t)&info, &count);
if (err == KERN_INVALID_ADDRESS)
break;
if (info.is_submap) {
depth++;
}
else {
// Free/Reset the char[]s to avoid weird paths
memset(buf, 0, sizeof(buf));
memset(addr_str, 0, sizeof(addr_str));
memset(perms, 0, sizeof(perms));
sprintf(addr_str,
"%016lx-%016lx",
(long unsigned int)address,
(long unsigned int)address + size);
sprintf(perms, "%c%c%c/%c%c%c",
(info.protection & VM_PROT_READ) ? 'r' : '-',
(info.protection & VM_PROT_WRITE) ? 'w' : '-',
(info.protection & VM_PROT_EXECUTE) ? 'x' : '-',
(info.max_protection & VM_PROT_READ) ? 'r' : '-',
(info.max_protection & VM_PROT_WRITE) ? 'w' : '-',
(info.max_protection & VM_PROT_EXECUTE) ? 'x' : '-');
// proc_regionfilename() return value seems meaningless
// so we do what we can in order to not continue in case
// of error.
errno = 0;
proc_regionfilename((pid_t)pid, address, buf, sizeof(buf));
if ((errno != 0) || ((sizeof(buf)) <= 0)) {
psutil_raise_for_pid(
pid, "proc_regionfilename() syscall failed");
goto error;
}
if (info.share_mode == SM_COW && info.ref_count == 1) {
// Treat single reference SM_COW as SM_PRIVATE
info.share_mode = SM_PRIVATE;
}
if (strlen(buf) == 0) {
switch (info.share_mode) {
// #ifdef SM_LARGE_PAGE
// case SM_LARGE_PAGE:
// Treat SM_LARGE_PAGE the same as SM_PRIVATE
// since they are not shareable and are wired.
// #endif
case SM_COW:
strcpy(buf, "[cow]");
break;
case SM_PRIVATE:
strcpy(buf, "[prv]");
break;
case SM_EMPTY:
strcpy(buf, "[nul]");
break;
case SM_SHARED:
case SM_TRUESHARED:
strcpy(buf, "[shm]");
break;
case SM_PRIVATE_ALIASED:
strcpy(buf, "[ali]");
break;
case SM_SHARED_ALIASED:
strcpy(buf, "[s/a]");
break;
default:
strcpy(buf, "[???]");
}
}
py_path = PyUnicode_DecodeFSDefault(buf);
if (! py_path)
goto error;
py_tuple = Py_BuildValue(
"ssOIIIIIH",
addr_str, // "start-end"address
perms, // "rwx" permissions
py_path, // path
info.pages_resident * pagesize, // rss
info.pages_shared_now_private * pagesize, // private
info.pages_swapped_out * pagesize, // swapped
info.pages_dirtied * pagesize, // dirtied
info.ref_count, // ref count
info.shadow_depth // shadow depth
);
if (!py_tuple)
goto error;
if (PyList_Append(py_list, py_tuple))
goto error;
Py_DECREF(py_tuple);
Py_DECREF(py_path);
}
// increment address for the next map/file
address += size;
}
if (task != MACH_PORT_NULL)
mach_port_deallocate(mach_task_self(), task);
return py_list;
error:
if (task != MACH_PORT_NULL)
mach_port_deallocate(mach_task_self(), task);
Py_XDECREF(py_tuple);
Py_XDECREF(py_path);
Py_DECREF(py_list);
return NULL;
}
/*
* Return the number of logical CPUs in the system.
* XXX this could be shared with BSD.
*/
static PyObject *
psutil_cpu_count_logical(PyObject *self, PyObject *args) {
/*
int mib[2];
int ncpu;
size_t len;
mib[0] = CTL_HW;
mib[1] = HW_NCPU;
len = sizeof(ncpu);
if (sysctl(mib, 2, &ncpu, &len, NULL, 0) == -1)
Py_RETURN_NONE; // mimic os.cpu_count()
else
return Py_BuildValue("i", ncpu);
*/
int num;
size_t size = sizeof(int);
if (sysctlbyname("hw.logicalcpu", &num, &size, NULL, 2))
Py_RETURN_NONE; // mimic os.cpu_count()
else
return Py_BuildValue("i", num);
}
/*
* Return the number of physical CPUs in the system.
*/
static PyObject *
psutil_cpu_count_phys(PyObject *self, PyObject *args) {
int num;
size_t size = sizeof(int);
if (sysctlbyname("hw.physicalcpu", &num, &size, NULL, 0))
Py_RETURN_NONE; // mimic os.cpu_count()
else
return Py_BuildValue("i", num);
}
/*
* Indicates if the given virtual address on the given architecture is in the
* shared VM region.
*/
bool
psutil_in_shared_region(mach_vm_address_t addr, cpu_type_t type) {
mach_vm_address_t base;
mach_vm_address_t size;
switch (type) {
case CPU_TYPE_ARM:
base = SHARED_REGION_BASE_ARM;
size = SHARED_REGION_SIZE_ARM;
break;
case CPU_TYPE_I386:
base = SHARED_REGION_BASE_I386;
size = SHARED_REGION_SIZE_I386;
break;
case CPU_TYPE_X86_64:
base = SHARED_REGION_BASE_X86_64;
size = SHARED_REGION_SIZE_X86_64;
break;
default:
return false;
}
return base <= addr && addr < (base + size);
}
/*
* Returns the USS (unique set size) of the process. Reference:
* https://dxr.mozilla.org/mozilla-central/source/xpcom/base/
* nsMemoryReporterManager.cpp
*/
static PyObject *
psutil_proc_memory_uss(PyObject *self, PyObject *args) {
long pid;
int err;
size_t len;
cpu_type_t cpu_type;
size_t private_pages = 0;
mach_vm_size_t size = 0;
mach_msg_type_number_t info_count = VM_REGION_TOP_INFO_COUNT;
kern_return_t kr;
vm_size_t page_size;
mach_vm_address_t addr = MACH_VM_MIN_ADDRESS;
mach_port_t task = MACH_PORT_NULL;
vm_region_top_info_data_t info;
mach_port_t object_name;
if (! PyArg_ParseTuple(args, "l", &pid))
return NULL;
err = task_for_pid(mach_task_self(), (pid_t)pid, &task);
if (err != KERN_SUCCESS) {
if (psutil_pid_exists(pid) == 0)
NoSuchProcess();
else
AccessDenied();
return NULL;
}
len = sizeof(cpu_type);
if (sysctlbyname("sysctl.proc_cputype", &cpu_type, &len, NULL, 0) != 0)
return PyErr_SetFromErrno(PyExc_OSError);
// Roughly based on libtop_update_vm_regions in
// http://www.opensource.apple.com/source/top/top-100.1.2/libtop.c
for (addr = 0; ; addr += size) {
kr = mach_vm_region(
task, &addr, &size, VM_REGION_TOP_INFO, (vm_region_info_t)&info,
&info_count, &object_name);
if (kr == KERN_INVALID_ADDRESS) {
// Done iterating VM regions.
break;
}
else if (kr != KERN_SUCCESS) {
PyErr_Format(
PyExc_RuntimeError,
"mach_vm_region(VM_REGION_TOP_INFO) syscall failed");
return NULL;
}
if (psutil_in_shared_region(addr, cpu_type) &&
info.share_mode != SM_PRIVATE) {
continue;
}
switch (info.share_mode) {
#ifdef SM_LARGE_PAGE
case SM_LARGE_PAGE:
// NB: Large pages are not shareable and always resident.
#endif
case SM_PRIVATE:
private_pages += info.private_pages_resident;
private_pages += info.shared_pages_resident;
break;
case SM_COW:
private_pages += info.private_pages_resident;
if (info.ref_count == 1) {
// Treat copy-on-write pages as private if they only
// have one reference.
private_pages += info.shared_pages_resident;
}
break;
case SM_SHARED:
default:
break;
}
}
mach_port_deallocate(mach_task_self(), task);
if (host_page_size(mach_host_self(), &page_size) != KERN_SUCCESS)
page_size = PAGE_SIZE;
return Py_BuildValue("K", private_pages * page_size);
}
/*
* Return system virtual memory stats.
* See:
* http://opensource.apple.com/source/system_cmds/system_cmds-498.2/
* vm_stat.tproj/vm_stat.c
*/
static PyObject *
psutil_virtual_mem(PyObject *self, PyObject *args) {
int mib[2];
uint64_t total;
size_t len = sizeof(total);
vm_statistics_data_t vm;
int pagesize = getpagesize();
// physical mem
mib[0] = CTL_HW;
mib[1] = HW_MEMSIZE;
// This is also available as sysctlbyname("hw.memsize").
if (sysctl(mib, 2, &total, &len, NULL, 0)) {
if (errno != 0)
PyErr_SetFromErrno(PyExc_OSError);
else
PyErr_Format(
PyExc_RuntimeError, "sysctl(HW_MEMSIZE) syscall failed");
return NULL;
}
// vm
if (!psutil_sys_vminfo(&vm))
return NULL;
return Py_BuildValue(
"KKKKK",
total,
(unsigned long long) vm.active_count * pagesize,
(unsigned long long) vm.inactive_count * pagesize,
(unsigned long long) vm.wire_count * pagesize,
// this is how vm_stat cmd does it
(unsigned long long) (vm.free_count - vm.speculative_count) * pagesize
);
}
/*
* Return stats about swap memory.
*/
static PyObject *
psutil_swap_mem(PyObject *self, PyObject *args) {
int mib[2];
size_t size;
struct xsw_usage totals;
vm_statistics_data_t vmstat;
int pagesize = getpagesize();
mib[0] = CTL_VM;
mib[1] = VM_SWAPUSAGE;
size = sizeof(totals);
if (sysctl(mib, 2, &totals, &size, NULL, 0) == -1) {
if (errno != 0)
PyErr_SetFromErrno(PyExc_OSError);
else
PyErr_Format(
PyExc_RuntimeError, "sysctl(VM_SWAPUSAGE) syscall failed");
return NULL;
}
if (!psutil_sys_vminfo(&vmstat))
return NULL;
return Py_BuildValue(
"LLLKK",
totals.xsu_total,
totals.xsu_used,
totals.xsu_avail,
(unsigned long long)vmstat.pageins * pagesize,
(unsigned long long)vmstat.pageouts * pagesize);
}
/*
* Return a Python tuple representing user, kernel and idle CPU times
*/
static PyObject *
psutil_cpu_times(PyObject *self, PyObject *args) {
mach_msg_type_number_t count = HOST_CPU_LOAD_INFO_COUNT;
kern_return_t error;
host_cpu_load_info_data_t r_load;
mach_port_t host_port = mach_host_self();
error = host_statistics(host_port, HOST_CPU_LOAD_INFO,
(host_info_t)&r_load, &count);
if (error != KERN_SUCCESS) {
return PyErr_Format(
PyExc_RuntimeError,
"host_statistics(HOST_CPU_LOAD_INFO) syscall failed: %s",
mach_error_string(error));
}
mach_port_deallocate(mach_task_self(), host_port);
return Py_BuildValue(
"(dddd)",
(double)r_load.cpu_ticks[CPU_STATE_USER] / CLK_TCK,
(double)r_load.cpu_ticks[CPU_STATE_NICE] / CLK_TCK,
(double)r_load.cpu_ticks[CPU_STATE_SYSTEM] / CLK_TCK,
(double)r_load.cpu_ticks[CPU_STATE_IDLE] / CLK_TCK
);
}
/*
* Return a Python list of tuple representing per-cpu times
*/
static PyObject *
psutil_per_cpu_times(PyObject *self, PyObject *args) {
natural_t cpu_count;
natural_t i;
processor_info_array_t info_array;
mach_msg_type_number_t info_count;
kern_return_t error;
processor_cpu_load_info_data_t *cpu_load_info = NULL;
int ret;
PyObject *py_retlist = PyList_New(0);
PyObject *py_cputime = NULL;
if (py_retlist == NULL)
return NULL;
mach_port_t host_port = mach_host_self();
error = host_processor_info(host_port, PROCESSOR_CPU_LOAD_INFO,
&cpu_count, &info_array, &info_count);
if (error != KERN_SUCCESS) {
PyErr_Format(
PyExc_RuntimeError,
"host_processor_info(PROCESSOR_CPU_LOAD_INFO) syscall failed: %s",
mach_error_string(error));
goto error;
}
mach_port_deallocate(mach_task_self(), host_port);
cpu_load_info = (processor_cpu_load_info_data_t *) info_array;
for (i = 0; i < cpu_count; i++) {
py_cputime = Py_BuildValue(
"(dddd)",
(double)cpu_load_info[i].cpu_ticks[CPU_STATE_USER] / CLK_TCK,
(double)cpu_load_info[i].cpu_ticks[CPU_STATE_NICE] / CLK_TCK,
(double)cpu_load_info[i].cpu_ticks[CPU_STATE_SYSTEM] / CLK_TCK,
(double)cpu_load_info[i].cpu_ticks[CPU_STATE_IDLE] / CLK_TCK
);
if (!py_cputime)
goto error;
if (PyList_Append(py_retlist, py_cputime))
goto error;
Py_DECREF(py_cputime);
}
ret = vm_deallocate(mach_task_self(), (vm_address_t)info_array,
info_count * sizeof(int));
if (ret != KERN_SUCCESS)
PyErr_WarnEx(PyExc_RuntimeWarning, "vm_deallocate() failed", 2);
return py_retlist;
error:
Py_XDECREF(py_cputime);
Py_DECREF(py_retlist);
if (cpu_load_info != NULL) {
ret = vm_deallocate(mach_task_self(), (vm_address_t)info_array,
info_count * sizeof(int));
if (ret != KERN_SUCCESS)
PyErr_WarnEx(PyExc_RuntimeWarning, "vm_deallocate() failed", 2);
}
return NULL;
}
/*
* Retrieve CPU frequency.
*/
static PyObject *
psutil_cpu_freq(PyObject *self, PyObject *args) {
int64_t curr;
int64_t min;
int64_t max;
size_t size = sizeof(int64_t);
if (sysctlbyname("hw.cpufrequency", &curr, &size, NULL, 0))
return PyErr_SetFromErrno(PyExc_OSError);
if (sysctlbyname("hw.cpufrequency_min", &min, &size, NULL, 0))
return PyErr_SetFromErrno(PyExc_OSError);
if (sysctlbyname("hw.cpufrequency_max", &max, &size, NULL, 0))
return PyErr_SetFromErrno(PyExc_OSError);
return Py_BuildValue(
"KKK",
curr / 1000 / 1000,
min / 1000 / 1000,
max / 1000 / 1000);
}
/*
* Return a Python float indicating the system boot time expressed in
* seconds since the epoch.
*/
static PyObject *
psutil_boot_time(PyObject *self, PyObject *args) {
// fetch sysctl "kern.boottime"
static int request[2] = { CTL_KERN, KERN_BOOTTIME };
struct timeval result;
size_t result_len = sizeof result;
time_t boot_time = 0;
if (sysctl(request, 2, &result, &result_len, NULL, 0) == -1)
return PyErr_SetFromErrno(PyExc_OSError);
boot_time = result.tv_sec;
return Py_BuildValue("f", (float)boot_time);
}
/*
* Return a list of tuples including device, mount point and fs type
* for all partitions mounted on the system.
*/
static PyObject *
psutil_disk_partitions(PyObject *self, PyObject *args) {
int num;
int i;
int len;
uint64_t flags;
char opts[400];
struct statfs *fs = NULL;
PyObject *py_dev = NULL;
PyObject *py_mountp = NULL;
PyObject *py_tuple = NULL;
PyObject *py_retlist = PyList_New(0);
if (py_retlist == NULL)
return NULL;
// get the number of mount points
Py_BEGIN_ALLOW_THREADS
num = getfsstat(NULL, 0, MNT_NOWAIT);
Py_END_ALLOW_THREADS
if (num == -1) {
PyErr_SetFromErrno(PyExc_OSError);
goto error;
}
len = sizeof(*fs) * num;
fs = malloc(len);
if (fs == NULL) {
PyErr_NoMemory();
goto error;
}
Py_BEGIN_ALLOW_THREADS
num = getfsstat(fs, len, MNT_NOWAIT);
Py_END_ALLOW_THREADS
if (num == -1) {
PyErr_SetFromErrno(PyExc_OSError);
goto error;
}
for (i = 0; i < num; i++) {
opts[0] = 0;
flags = fs[i].f_flags;
// see sys/mount.h
if (flags & MNT_RDONLY)
strlcat(opts, "ro", sizeof(opts));
else
strlcat(opts, "rw", sizeof(opts));
if (flags & MNT_SYNCHRONOUS)
strlcat(opts, ",sync", sizeof(opts));
if (flags & MNT_NOEXEC)
strlcat(opts, ",noexec", sizeof(opts));
if (flags & MNT_NOSUID)
strlcat(opts, ",nosuid", sizeof(opts));
if (flags & MNT_UNION)
strlcat(opts, ",union", sizeof(opts));
if (flags & MNT_ASYNC)
strlcat(opts, ",async", sizeof(opts));
if (flags & MNT_EXPORTED)
strlcat(opts, ",exported", sizeof(opts));
if (flags & MNT_QUARANTINE)
strlcat(opts, ",quarantine", sizeof(opts));
if (flags & MNT_LOCAL)
strlcat(opts, ",local", sizeof(opts));
if (flags & MNT_QUOTA)
strlcat(opts, ",quota", sizeof(opts));
if (flags & MNT_ROOTFS)
strlcat(opts, ",rootfs", sizeof(opts));
if (flags & MNT_DOVOLFS)
strlcat(opts, ",dovolfs", sizeof(opts));
if (flags & MNT_DONTBROWSE)
strlcat(opts, ",dontbrowse", sizeof(opts));
if (flags & MNT_IGNORE_OWNERSHIP)
strlcat(opts, ",ignore-ownership", sizeof(opts));
if (flags & MNT_AUTOMOUNTED)
strlcat(opts, ",automounted", sizeof(opts));
if (flags & MNT_JOURNALED)
strlcat(opts, ",journaled", sizeof(opts));
if (flags & MNT_NOUSERXATTR)
strlcat(opts, ",nouserxattr", sizeof(opts));
if (flags & MNT_DEFWRITE)
strlcat(opts, ",defwrite", sizeof(opts));
if (flags & MNT_MULTILABEL)
strlcat(opts, ",multilabel", sizeof(opts));
if (flags & MNT_NOATIME)
strlcat(opts, ",noatime", sizeof(opts));
if (flags & MNT_UPDATE)
strlcat(opts, ",update", sizeof(opts));
if (flags & MNT_RELOAD)
strlcat(opts, ",reload", sizeof(opts));
if (flags & MNT_FORCE)
strlcat(opts, ",force", sizeof(opts));
if (flags & MNT_CMDFLAGS)
strlcat(opts, ",cmdflags", sizeof(opts));
py_dev = PyUnicode_DecodeFSDefault(fs[i].f_mntfromname);
if (! py_dev)
goto error;
py_mountp = PyUnicode_DecodeFSDefault(fs[i].f_mntonname);
if (! py_mountp)
goto error;
py_tuple = Py_BuildValue(
"(OOss)",
py_dev, // device
py_mountp, // mount point
fs[i].f_fstypename, // fs type
opts); // options
if (!py_tuple)
goto error;
if (PyList_Append(py_retlist, py_tuple))
goto error;
Py_DECREF(py_dev);
Py_DECREF(py_mountp);
Py_DECREF(py_tuple);
}
free(fs);
return py_retlist;
error:
Py_XDECREF(py_dev);
Py_XDECREF(py_mountp);
Py_XDECREF(py_tuple);
Py_DECREF(py_retlist);
if (fs != NULL)
free(fs);
return NULL;
}
/*
* Return process threads
*/
static PyObject *
psutil_proc_threads(PyObject *self, PyObject *args) {
long pid;
int err, ret;
kern_return_t kr;
unsigned int info_count = TASK_BASIC_INFO_COUNT;
mach_port_t task = MACH_PORT_NULL;
struct task_basic_info tasks_info;
thread_act_port_array_t thread_list = NULL;
thread_info_data_t thinfo_basic;
thread_basic_info_t basic_info_th;
mach_msg_type_number_t thread_count, thread_info_count, j;
PyObject *py_tuple = NULL;
PyObject *py_retlist = PyList_New(0);
if (py_retlist == NULL)
return NULL;