2011-09-15 Kevin Pouget <kevin.pouget@st.com>

PR Python/12692 Add gdb.selected_inferior() to Python interface.
	* python/py-inferior.c (GdbMethods): New Python method definition.

doc:
	PR Python/12692 Add gdb.selected_inferior() to Python interface.
	* gdb.texinfo (Inferiors In Python): Describe new
	gdb.selected_inferior() function.

testsuite:
	PR Python/12692 Add gdb.selected_inferior() to Python interface.
	* gdb.python/py-inferior.exp: Add testcase for gdb.selected_inferior().

gdb/ChangeLog

@@ -1,3 +1,8 @@
+2011-09-15  Kevin Pouget <kevin.pouget@st.com>
+
+	PR Python/12692 Add gdb.selected_inferior() to Python interface.
+	* python/py-inferior.c (GdbMethods): New Python method definition.
+
 2011-09-15  Kevin Pouget  <kevin.pouget@st.com>
 
 	Handle multiple breakpoint hits in Python interface:

gdb/doc/ChangeLog

@@ -1,3 +1,9 @@
+2011-09-15  Kevin Pouget  <kevin.pouget@st.com>
+
+	PR Python/12692 Add gdb.selected_inferior() to Python interface.
+	* gdb.texinfo (Inferiors In Python): Describe new
+	gdb.selected_inferior() function.
+
 2011-09-15  Kevin Pouget  <kevin.pouget@st.com>
 
 	Handle multiple breakpoint hits in Python interface:

gdb/doc/gdb.texinfo

@@ -22146,6 +22146,10 @@ module:
 Return a tuple containing all inferior objects.
 @end defun
 
+@defun selected_inferior
+Return an object representing the current inferior.
+@end defun
+
 A @code{gdb.Inferior} object has the following attributes:
 
 @table @code

gdb/python/py-inferior.c

@@ -683,6 +683,20 @@ py_free_inferior (struct inferior *inf, void *datum)
   do_cleanups (cleanup);
 }
 
+/* Implementation of gdb.selected_inferior() -> gdb.Inferior.
+   Returns the current inferior object.  */
+
+PyObject *
+gdbpy_selected_inferior (PyObject *self, PyObject *args)
+{
+  PyObject *inf_obj;
+
+  inf_obj = inferior_to_inferior_object (current_inferior ());
+  Py_INCREF (inf_obj);
+
+  return inf_obj;
+}
+
 void
 gdbpy_initialize_inferior (void)
 {

gdb/python/python-internal.h

@@ -151,6 +151,7 @@ PyObject *gdbpy_create_lazy_string_object (CORE_ADDR address, long length,
 					   struct type *type);
 PyObject *gdbpy_inferiors (PyObject *unused, PyObject *unused2);
 PyObject *gdbpy_selected_thread (PyObject *self, PyObject *args);
+PyObject *gdbpy_selected_inferior (PyObject *self, PyObject *args);
 PyObject *gdbpy_string_to_argv (PyObject *self, PyObject *args);
 PyObject *gdbpy_parameter (PyObject *self, PyObject *args);
 PyObject *gdbpy_parameter_value (enum var_types type, void *var);

gdb/python/python.c

@@ -1423,6 +1423,9 @@ Arguments are separate by spaces and may be quoted."
   { "selected_thread", gdbpy_selected_thread, METH_NOARGS,
     "selected_thread () -> gdb.InferiorThread.\n\
 Return the selected thread object." },
+  { "selected_inferior", gdbpy_selected_inferior, METH_NOARGS,
+    "selected_inferior () -> gdb.Inferior.\n\
+Return the selected inferior object." },
   { "inferiors", gdbpy_inferiors, METH_NOARGS,
     "inferiors () -> (gdb.Inferior, ...).\n\
 Return a tuple containing all inferiors." },

gdb/testsuite/ChangeLog

@@ -1,3 +1,8 @@
+2011-09-15  Kevin Pouget  <kevin.pouget@st.com>
+
+	PR Python/12692 Add gdb.selected_inferior() to Python interface.
+	* gdb.python/py-inferior.exp: Add testcase for gdb.selected_inferior().
+
 2011-04-30  Kevin Pouget  <kevin.pouget@st.com>
 
 	Handle multiple breakpoint hits in Python interface:

gdb/testsuite/gdb.python/py-inferior.exp

@@ -206,8 +206,18 @@ gdb_test "python print inf_list\[0\].is_valid()" "True" \
          "Check inferior validity"
 gdb_test "python print inf_list\[1\].is_valid()" "True" \
          "Check inferior validity"
-gdb_test_no_output "remove-inferiors 2" "remove-inferiors 2"
+gdb_test_no_output "remove-inferiors 2" "remove-inferiors 3"
 gdb_test "python print inf_list\[0\].is_valid()" "False" \
          "Check inferior validity"
 gdb_test "python print inf_list\[1\].is_valid()" "True" \
          "Check inferior validity"
+
+# Test gdb.selected_inferior()
+gdb_test "inferior 1" ".*" "Switch to first inferior"
+gdb_test "py print gdb.selected_inferior().num" "1" "First inferior selected"
+
+gdb_test "add-inferior" "Added inferior 3" "Create new inferior"
+gdb_test "inferior 3" ".*" "Switch to third inferior"
+gdb_test "py print gdb.selected_inferior().num" "3" "Third inferior selected"
+gdb_test "inferior 1" ".*" "Switch to first inferior"
+gdb_test_no_output "remove-inferiors 3" "Remove second inferior"