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/*
* Copyright (c) 2009, Giampaolo Rodola', Landry Breuil.
* All rights reserved.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include <Python.h>
#include <sys/sysctl.h>
#include <sys/sched.h> // for CPUSTATES & CP_*
#include "../../arch/all/init.h"
PyObject *
psutil_per_cpu_times(PyObject *self, PyObject *args) {
int mib[3];
int ncpu;
size_t len;
int i;
PyObject *py_retlist = PyList_New(0);
PyObject *py_cputime = NULL;
if (py_retlist == NULL)
return NULL;
// retrieve the number of cpus
mib[0] = CTL_HW;
mib[1] = HW_NCPU;
if (psutil_sysctl(mib, 2, &ncpu, sizeof(ncpu)) != 0)
goto error;
uint64_t cpu_time[CPUSTATES];
for (i = 0; i < ncpu; i++) {
mib[0] = CTL_KERN;
mib[1] = KERN_CPTIME2;
mib[2] = i;
if (psutil_sysctl(mib, 3, &cpu_time, sizeof(cpu_time)) != 0)
goto error;
py_cputime = Py_BuildValue(
"(ddddd)",
(double)cpu_time[CP_USER] / CLOCKS_PER_SEC,
(double)cpu_time[CP_NICE] / CLOCKS_PER_SEC,
(double)cpu_time[CP_SYS] / CLOCKS_PER_SEC,
(double)cpu_time[CP_IDLE] / CLOCKS_PER_SEC,
(double)cpu_time[CP_INTR] / CLOCKS_PER_SEC);
if (!py_cputime)
goto error;
if (PyList_Append(py_retlist, py_cputime))
goto error;
Py_DECREF(py_cputime);
}
return py_retlist;
error:
Py_XDECREF(py_cputime);
Py_DECREF(py_retlist);
return NULL;
}
PyObject *
psutil_cpu_stats(PyObject *self, PyObject *args) {
struct uvmexp uv;
int uvmexp_mib[] = {CTL_VM, VM_UVMEXP};
if (psutil_sysctl(uvmexp_mib, 2, &uv, sizeof(uv)) !=0)
return NULL;
return Py_BuildValue(
"IIIIIII",
uv.swtch, // ctx switches
uv.intrs, // interrupts - XXX always 0, will be determined via /proc
uv.softs, // soft interrupts
uv.syscalls, // syscalls - XXX always 0
uv.traps, // traps
uv.faults, // faults
uv.forks // forks
);
}
PyObject *
psutil_cpu_freq(PyObject *self, PyObject *args) {
int freq;
int mib[2] = {CTL_HW, HW_CPUSPEED};
// On VirtualBox I get "sysctl hw.cpuspeed=2593" (never changing),
// which appears to be expressed in Mhz.
if (psutil_sysctl(mib, 2, &freq, sizeof(freq)) != 0)
return NULL;
return Py_BuildValue("i", freq);
}
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