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/*-------------------------------------------------------------------------
*
* setproctitle.c
* Python extension module to update and read the process title.
*
* Copyright (c) 2009-2012 Daniele Varrazzo <daniele.varrazzo@gmail.com>
*
* The module allows Python code to access the functions get_ps_display()
* and set_ps_display().
*
*-------------------------------------------------------------------------
*/
#include "spt.h"
#include "spt_setup.h"
#include "spt_status.h"
#ifndef SPT_VERSION
#define SPT_VERSION unknown
#endif
/* macro trick to stringify a macro expansion */
#define xstr(s) str(s)
#define str(s) #s
/* ----------------------------------------------------- */
static PyObject *spt_version;
static char spt_setproctitle__doc__[] =
"setproctitle(title) -- Change the process title."
;
static PyObject *
spt_setproctitle(PyObject *self, PyObject *args, PyObject *kwargs)
{
const char *title = NULL;
static char *kwlist[] = {"title", NULL};
if (!PyArg_ParseTupleAndKeywords(args, kwargs, "s", kwlist, &title))
return NULL;
set_ps_display(title, true);
Py_INCREF(Py_None);
return Py_None;
}
static char spt_getproctitle__doc__[] =
"getproctitle() -- Get the current process title."
;
static PyObject *
spt_getproctitle(PyObject *self, PyObject *args)
{
size_t tlen;
const char *title;
title = get_ps_display(&tlen);
return Py_BuildValue("s#", title, (int)tlen);
}
/* List of methods defined in the module */
static struct PyMethodDef spt_methods[] = {
{"setproctitle",
(PyCFunction)spt_setproctitle,
METH_VARARGS|METH_KEYWORDS,
spt_setproctitle__doc__},
{"getproctitle",
(PyCFunction)spt_getproctitle,
METH_NOARGS,
spt_getproctitle__doc__},
{NULL, (PyCFunction)NULL, 0, NULL} /* sentinel */
};
/* Initialization function for the module (*must* be called initsetproctitle) */
static char setproctitle_module_documentation[] =
"Allow customization of the process title."
;
#ifdef IS_PY3K
static struct PyModuleDef moduledef = {
PyModuleDef_HEAD_INIT,
"setproctitle",
setproctitle_module_documentation,
-1,
spt_methods,
NULL,
NULL,
NULL,
NULL
};
#endif
PyMODINIT_FUNC
INIT_MODULE(setproctitle)(void)
{
PyObject *m, *d;
spt_debug("module init");
/* Create the module and add the functions */
#ifdef IS_PY3K
m = PyModule_Create(&moduledef);
#else
m = Py_InitModule3("setproctitle", spt_methods,
setproctitle_module_documentation);
#endif
if (m == NULL) { goto exit; }
/* Add version string to the module*/
d = PyModule_GetDict(m);
spt_version = Py_BuildValue("s", xstr(SPT_VERSION));
PyDict_SetItemString(d, "__version__", spt_version);
/* Initialize the process title */
if (0 > spt_setup()) {
spt_debug("failed to initialize module setproctitle");
/* Check for errors */
if (PyErr_Occurred()) {
spt_debug("an exception is set: import will fail");
}
}
exit:
#ifdef IS_PY3K
return m;
#else
return;
#endif
}
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