On Wed, 30 Jul 2003 23:04:56 +0200, =?ISO-8859-1?Q?=22Martin_v=2E_L=F6wis=22?= <ma****@v.loewis.de> wrote:
Mark wrote:
OK, How to check the amount of Windows physical RAM using python?
You should call the GlobalMemoryStatus(Ex) function. To my knowledge,
there is no Python wrapper for it, yet, so you would need to write one.
Regards,
Martin
====< memorystatus.c >=============================================
/*
** memorystatus.c
** Version 0.01 20030731 10:45:12 Bengt Richter
bo**@oz.net
**
*/
#include "Python.h"
#include <windows.h>
static char doc_memstat[] =
"Returns list of 7 integers:\n"
" [0]: percent of memory in use\n"
" [1]: bytes of physical memory\n"
" [2]: free physical memory bytes\n"
" [3]: bytes of paging file\n"
" [4]: free bytes of paging file\n"
" [5]: user bytes of address space\n"
" [6]: free user bytes\n";
static PyObject *
memorystatus_memstat(PyObject *self, PyObject *args)
{
PyObject *rv;
MEMORYSTATUS ms;
GlobalMemoryStatus( &ms );
if (!PyArg_ParseTuple(args, "")) /* No arguments */
return NULL;
rv = Py_BuildValue("[i,i,i,i,i,i,i]",
ms.dwMemoryLoad, // percent of memory in use
ms.dwTotalPhys, // bytes of physical memory
ms.dwAvailPhys, // free physical memory bytes
ms.dwTotalPageFile, // bytes of paging file
ms.dwAvailPageFile, // free bytes of paging file
ms.dwTotalVirtual, // user bytes of address space
ms.dwAvailVirtual // free user bytes
);
return rv;
}
/* List of functions defined in the module */
static struct PyMethodDef memorystatus_module_methods[] = {
{"memstat", memorystatus_memstat, METH_VARARGS, doc_memstat},
{NULL, NULL} /* sentinel */
};
/* Initialization function for the module (*must* be called initmemorystatus) */
static char doc_memorystatus[] = "Get win32 memory status numbers (see memstat method)";
DL_EXPORT(void)
initmemorystatus(void)
{
PyObject *m, *d, *x;
/* Create the module and add the functions */
m = Py_InitModule("memorystatus", memorystatus_module_methods);
d = PyModule_GetDict(m);
x = PyString_FromString(doc_memorystatus);
PyDict_SetItemString(d, "__doc__", x);
Py_XDECREF(x);
}
================================================== =================
You may find a little .cmd file like this (tailored to your system) handy:
[10:55] C:\pywk\ut\memorystatus>type \util\mkpydll.cmd
@cl -LD -nologo -Id:\python22\include %1.c -link -LIBPATH:D:\python22\libs -export:init%1
[10:56] C:\pywk\ut\memorystatus>mkpydll memorystatus
memorystatus.c
Creating library memorystatus.lib and object memorystatus.exp
[10:56] C:\pywk\ut\memorystatus>python
(I'll indent this one space to avoid spurious quote highlights)
Python 2.2.2 (#37, Oct 14 2002, 17:02:34) [MSC 32 bit (Intel)] on win32
Type "help", "copyright", "credits" or "license" for more information.
import memorystatus
help(memorystatus)
Help on module memorystatus:
NAME
memorystatus - Get win32 memory status numbers (see memstat method)
FILE
c:\pywk\ut\memorystatus\memorystatus.dll
FUNCTIONS
memstat(...)
Returns list of 7 integers:
[0]: percent of memory in use
[1]: bytes of physical memory
[2]: free physical memory bytes
[3]: bytes of paging file
[4]: free bytes of paging file
[5]: user bytes of address space
[6]: free user bytes
DATA
__file__ = 'memorystatus.dll'
__name__ = 'memorystatus'
memorystatus.memstat()
[0, 334929920, 271536128, 942825472, 861339648, 2147352576, 2129780736]
Warning: Just now did this. Not tested beyond what you see!!
Regards,
Bengt Richter
