Added Thread-Module and made the "refresh" working

1 files changed, 62 insertions, 0 deletions

diff --git a/geneticone/modules/geneticthread.c b/geneticone/modules/geneticthread.c
new file mode 100644
index 0000000..33520a6
--- /dev/null
+++ b/geneticone/modules/geneticthread.c
@@ -0,0 +1,62 @@
+/*
+ * 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);
+}