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/*
* This is a python module implementing real threads.
*/
#include <Python.h>
#include <pthread.h>
/**
* Callback for the thread. Just calls the argument's python function.
*/
static void * thread_cb (void * arg)
{
PyObject * arglist;
arglist = Py_BuildValue("()",NULL);
PyEval_CallObject((PyObject*)arg, arglist);
Py_DECREF(arglist);
Py_DECREF((PyObject*)arg);
return NULL;
}
/**
* Function called from the python application.
*/
static PyObject * thread_start (PyObject * self, PyObject *args)
{
PyObject *temp;
pthread_t ID;
if (PyArg_ParseTuple(args, "O:thread_start", &temp)) // get argument
{
if (!PyCallable_Check(temp)) // not callable
{
PyErr_SetString(PyExc_TypeError, "parameter must be callable");
return NULL;
}
Py_INCREF(temp); /* Add a reference to new callback */
int status = pthread_create(&ID, NULL, thread_cb, (void*) temp);
if (status)
{
PyErr_SetString(PyExc_SystemError, "error during thread start");
return NULL;
}
}
Py_RETURN_NONE;
}
static PyMethodDef ThreadMethods[] = {
{"thread_start", thread_start, METH_VARARGS,
"Start a new thread."},
{NULL, NULL, 0, NULL} /* Sentinel */
};
/**
* Init function.
*/
PyMODINIT_FUNC
initgeneticthread(void)
{
(void) Py_InitModule("geneticthread", ThreadMethods);
}
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