Hi,
I apologise if this is an inappropriate post for this list; my query is
concerned with the internals of Python, honest :) I am trying to
compile a C module on Solaris, to return extended process information
(args greater than 80 characters). However, the _FILE_OFFSET_BITS in
pyconfig.h is causing me a bit of bother. It is preventing me, from
correctly parsing /proc - according to the man pages, any handling of
/proc entries must be done with 32bit structures, variables, etc. I've
tried undefining it at compile time, without success. I've had to
define _LP64, include <procfs.h>, then undefine _LP64. Doing this,
allows me to use structured proc, instead of the deprecatd ioctl method.
However, I don't think this is a working solution, as the code compiles,
runs, but returns dubious results (I have a pure C version of the code,
which works fine). I've included the code below. Is there a way, to
tell Python to compile a module in 32bit mode? Or, is there a
workaround for this Solaris oddity?
Regards
John
#include "Python.h"
#include <stdio.h>
#define _LP64
#include <procfs.h>
#undef _LP64
#include <fcntl.h>
#include <sys/types.h>
#include <sys/stat.h>
static PyObject *
psinfo_fullpidinfo(PyObject *self, PyObject *args)
{
PyObject *queryPid;
char procBuf[50];
char argStr[512];
char **argvp;
int fdPSInfoFile, fdASFile, counter;
struct psinfo psBuf;
if (!PyArg_ParseTuple(args, "i:pidinfo", &queryPid) ) {
return NULL;
}
(void)sprintf(procBuf,"/proc/%i/psinfo", (int)queryPid);
(void)sprintf(asBuf,"/proc/%i/as", (int)queryPid);
if ((fdPSInfoFile = open(procBuf, O_RDONLY)) != -1 ) {
if (read(fdPSInfoFile, &psBuf, sizeof(struct psinfo)) ==
sizeof(struct psinfo) ) {
close(fdPSInfoFile);
if ((fdASFile = open(asBuf, O_RDONLY)) == -1 ) {
printf(" Open Of AS Failed");
}
else {
printf( "%d", psBuf.pr_argc);
argvp=(char **) malloc(sizeof(char *) * (psBuf.pr_argc +
1));
if (lseek(fdASFile, psBuf.pr_argv,
SEEK_SET) == -1) {
printf ("Initial LSeek Failed" );
return NULL;
}
if (read(fdASFile, argvp, sizeof(char *) *
(psBuf.pr_argc + 1)) == -1 ) {
printf( "Read Failed" );
return NULL;
}
for ( counter=0; counter < psBuf.pr_argc; counter++ ) {
if (lseek(fdASFile, argvp[ counter ], SEEK_SET) == -1) {
printf( "2nd LSeek Failed");
return NULL;
}
if (read(fdASFile, argStr, 512) == -1) {
printf( "Read Of AS File Failed");
return NULL;
}
printf( "Got %s.\n", argStr );
}
close(fdASFile);
}
}
}
return Py_BuildValue( "s", argStr );
}
static struct PyMethodDef PSInfoMethods[]={
{ "fullpidinfo", psinfo_fullpidinfo, METH_VARARGS, "Display Full Arg
Details For A Given PID" },
{ NULL, NULL, 0, NULL }
};
void initpsinfo(void)
{
(void)Py_InitModule("psinfo", PSInfoMethods);
}
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