configure.ac: Require python 2.3

Original commit message from CVS:
* configure.ac: Require python 2.3

* gst/gstmodule.c (python_do_pending_calls): Use PyGILState and
friends here.

* gst/gst.override (_pygst_main_quit, _pygst_main): Use these two
instead of gst_main/gst_main_quit so we can check if we're in a
mainloop or not.

ChangeLog

@@ -1,3 +1,14 @@
+2004-08-03  Johan Dahlin  <johan@gnome.org>
+
+	* configure.ac: Require python 2.3
+
+	* gst/gstmodule.c (python_do_pending_calls): Use PyGILState and
+	friends here.
+
+	* gst/gst.override (_pygst_main_quit, _pygst_main): Use these two
+	instead of gst_main/gst_main_quit so we can check if we're in a
+	mainloop or not.
+
 2004-08-02  Thomas Vander Stichele  <thomas at apestaart dot org>
 
 	* gst/gst.defs:

configure.ac

@@ -34,10 +34,10 @@ AC_PROG_LIBTOOL
 dnl check for python
 dnl AM_PATH_PYTHON(2.2)
 AM_PATH_PYTHON
-AC_MSG_CHECKING(for python >= 2.2)
+AC_MSG_CHECKING(for python >= 2.3)
 prog="
 import sys, string
-minver = (2,2,0,'final',0)
+minver = (2,3,0,'final',0)
 if sys.version_info < minver:
   sys.exit(1)
 sys.exit(0)"
@@ -76,12 +76,11 @@ PYGTK_H2DEF=`$PKG_CONFIG --variable=codegendir pygtk-2.0`/h2def.py
 AC_SUBST(PYGTK_H2DEF)
 AC_MSG_RESULT($PYGTK_H2DEF)
 
-dnl AC_MSG_CHECKING(for pygtk codegen)
+AC_MSG_CHECKING(for pygtk codegen)
-dnl PYGTK_CODEGEN="$PYTHON `$PKG_CONFIG --variable=codegendir pygtk-2.0`/codegen.py"
+PYGTK_CODEGEN="$PYTHON `$PKG_CONFIG --variable=codegendir pygtk-2.0`/codegen.py"
-dnl AC_SUBST(PYGTK_CODEGEN)
+dnl PYGTK_CODEGEN="$PYTHON \$(top_srcdir)/codegen/codegen.py"
-dnl AC_MSG_RESULT($PYGTK_CODEGEN)
-PYGTK_CODEGEN="$PYTHON \$(top_srcdir)/codegen/codegen.py"
 AC_SUBST(PYGTK_CODEGEN)
+AC_MSG_RESULT($PYGTK_CODEGEN)
 
 dnl Interfaces
 AC_MSG_CHECKING(for GStreamer interfaces include dir)

gst/gst.override

@@ -1,4 +1,4 @@
-/* -*- Mode: C; ; c-file-style: "python" -*- */
+/* -*- Mode: C; c-basic-offset: 4 -*- */
 so/* gst-python
  * Copyright (C) 2002 David I. Lehn
  * Copyright (C) 2004 Johan Dahlin
@@ -37,6 +37,33 @@ headers
 extern gboolean pygst_data_from_pyobject (PyObject *object, GstData **data);
 static PyObject *_wrap_gst_element_factory_make(PyObject *self, PyObject *args, PyObject *kwargs);
 
+GSList *mainloops = NULL;
+void
+_pygst_main_quit(void)
+{
+    if (!mainloops)
+	    g_error ("Quit more loops than there are");
+    else {
+	GMainLoop *loop = mainloops->data;
+
+	mainloops = g_slist_delete_link (mainloops, mainloops);
+	g_main_loop_quit (loop);
+	g_main_loop_unref (loop);
+    }
+}
+
+void
+_pygst_main(void)
+{
+    GMainLoop *loop;
+
+    loop = g_main_loop_new (NULL, FALSE);
+    mainloops = g_slist_prepend (mainloops, loop);
+
+    g_main_loop_run (loop);
+}
+
+
 %%
 include
   gstbin.override
@@ -598,6 +625,27 @@ _wrap_gst_structure_set_value(PyObject *self, PyObject *args, PyObject *kwargs)
 	return Py_None;
 }
 %%
+override gst_structure_get_int kwargs
+static PyObject *
+_wrap_gst_structure_get_int(PyObject *self, PyObject *args, PyObject *kwargs)
+{
+	static char *kwlist[] = { "fieldname", NULL };
+	char *fieldname;
+	int value;
+	
+	if (!PyArg_ParseTupleAndKeywords(args, kwargs,
+					 "s:GstStructure.get_int",
+					 kwlist, &fieldname))
+		return NULL;
+
+	if (gst_structure_get_int(pyg_boxed_get(self, GstStructure), fieldname, &value))
+		return PyInt_FromLong(value);
+
+	/* XXX: Raise exception? */
+	Py_INCREF(Py_None);
+	return Py_None;
+}
+%%
 override-slot GstStructure.tp_as_mapping
 static int
 _wrap_gst_structure_length(PyGObject *self)
@@ -885,9 +933,11 @@ override gst_main noargs
 static PyObject *
 _wrap_gst_main(PyObject *self)
 {
-	pyg_unblock_threads();
+	Py_BEGIN_ALLOW_THREADS;
-	gst_main();
+
-	pyg_block_threads();
+	_pygst_main();
+
+	Py_END_ALLOW_THREADS;
 	
 	if (PyErr_Occurred())
 		return NULL;
@@ -896,6 +946,18 @@ _wrap_gst_main(PyObject *self)
         return Py_None;
 
 }
+%%
+override gst_main_quit args
+static PyObject *
+_wrap_gst_main_quit(PyObject *self)
+{
+
+    _pygst_main_quit();
+    
+    Py_INCREF(Py_None);
+    return Py_None;
+}
+
 %%
 override-slot GstElement.tp_init kwargs
 static int

gst/gstbin.override

@@ -94,9 +94,9 @@ _wrap_gst_bin_iterate(PyGObject *self)
 {
 	int ret;
 
-	pyg_unblock_threads();
+	Py_BEGIN_ALLOW_THREADS;
 	ret = gst_bin_iterate(GST_BIN(self->obj));
-	pyg_block_threads();
+	Py_END_ALLOW_THREADS;
 	return PyInt_FromLong(ret);
 }
 %%

gst/gstmodule.c

@@ -33,22 +33,23 @@ void pygst_register_classes (PyObject *d);
 void pygst_add_constants(PyObject *module, const gchar *strip_prefix);
 		
 extern PyMethodDef pygst_functions[];
+extern GSList *mainloops;
 
 static gboolean
 python_do_pending_calls(gpointer data)
 {
     gboolean quit = FALSE;
+    PyGILState_STATE state;
 
-    pyg_block_threads();
+    state = PyGILState_Ensure();
     if (PyErr_CheckSignals() == -1) {
 	PyErr_SetNone(PyExc_KeyboardInterrupt);
 	quit = TRUE;
     }
-    pyg_unblock_threads();
+    if (quit && mainloops != NULL)
-
-    if (quit)
 	gst_main_quit();
     
+    PyGILState_Release(state);
     return TRUE;
 }