def generate_callback_classes(out, callbacks):
for callback_impl_num, template_parameters in enumerate(callbacks):
sink = MemoryCodeSink()
cls_name = "ns3::Callback< %s >" % ', '.join(template_parameters)
#print >> sys.stderr, "***** trying to register callback: %r" % cls_name
class_name = "PythonCallbackImpl%i" % callback_impl_num
sink.writeln('''
class %s : public ns3::CallbackImpl<%s>
{
public:
PyObject *m_callback;
%s(PyObject *callback)
{
Py_INCREF(callback);
m_callback = callback;
}
virtual ~%s()
{
Py_DECREF(m_callback);
m_callback = NULL;
}
virtual bool IsEqual(ns3::Ptr<const ns3::CallbackImplBase> other_base) const
{
const %s *other = dynamic_cast<const %s*> (ns3::PeekPointer (other_base));
if (other != NULL)
return (other->m_callback == m_callback);
else
return false;
}
''' % (class_name, ', '.join(template_parameters), class_name, class_name,
class_name, class_name))
sink.indent()
callback_return = template_parameters[0]
return_ctype = ctypeparser.parse_type(callback_return)
if ('const' in return_ctype.remove_modifiers()):
kwargs = {'is_const': True}
else:
kwargs = {}
try:
return_type = ReturnValue.new(str(return_ctype), **kwargs)
except (typehandlers.TypeLookupError,
typehandlers.TypeConfigurationError), ex:
warnings.warn(
"***** Unable to register callback; Return value '%s' error (used in %s): %r"
% (callback_return, cls_name, ex), Warning)
continue
arguments = []
ok = True
callback_parameters = [
arg for arg in template_parameters[1:] if arg != 'ns3::empty'
]
for arg_num, arg_type in enumerate(callback_parameters):
arg_name = 'arg%i' % (arg_num + 1)
param_ctype = ctypeparser.parse_type(arg_type)
if ('const' in param_ctype.remove_modifiers()):
kwargs = {'is_const': True}
else:
kwargs = {}
try:
arguments.append(
Parameter.new(str(param_ctype), arg_name, **kwargs))
except (typehandlers.TypeLookupError,
typehandlers.TypeConfigurationError), ex:
warnings.warn(
"***** Unable to register callback; parameter '%s %s' error (used in %s): %r"
% (arg_type, arg_name, cls_name, ex), Warning)
ok = False
def generate_callback_classes(module, callbacks):
out = module.after_forward_declarations
for callback_impl_num, template_parameters in enumerate(callbacks):
sink = MemoryCodeSink()
cls_name = "ns3::Callback< %s >" % ', '.join(template_parameters)
#print >> sys.stderr, "***** trying to register callback: %r" % cls_name
class_name = "PythonCallbackImpl%i" % callback_impl_num
sink.writeln('''
class %s : public ns3::CallbackImpl<%s>
{
public:
PyObject *m_callback;
%s(PyObject *callback)
{
Py_INCREF(callback);
m_callback = callback;
}
virtual ~%s()
{
PyGILState_STATE __py_gil_state;
__py_gil_state = (PyEval_ThreadsInitialized() ? PyGILState_Ensure() : (PyGILState_STATE) 0);
Py_DECREF(m_callback);
m_callback = NULL;
PyGILState_Release(__py_gil_state);
}
virtual bool IsEqual(ns3::Ptr<const ns3::CallbackImplBase> other_base) const
{
const %s *other = dynamic_cast<const %s*> (ns3::PeekPointer (other_base));
if (other != NULL)
return (other->m_callback == m_callback);
else
return false;
}
''' % (class_name, ', '.join(template_parameters), class_name, class_name, class_name, class_name))
sink.indent()
callback_return = template_parameters[0]
return_ctype = ctypeparser.parse_type(callback_return)
if ('const' in return_ctype.remove_modifiers()):
kwargs = {'is_const': True}
else:
kwargs = {}
try:
return_type = ReturnValue.new(str(return_ctype), **kwargs)
except (typehandlers.TypeLookupError, typehandlers.TypeConfigurationError) as ex:
warnings.warn("***** Unable to register callback; Return value '%s' error (used in %s): %r"
% (callback_return, cls_name, ex),
Warning)
continue
arguments = []
ok = True
callback_parameters = [arg for arg in template_parameters[1:] if arg != 'ns3::empty']
for arg_num, arg_type in enumerate(callback_parameters):
arg_name = 'arg%i' % (arg_num+1)
param_ctype = ctypeparser.parse_type(arg_type)
if ('const' in param_ctype.remove_modifiers()):
kwargs = {'is_const': True}
else:
kwargs = {}
try:
param = Parameter.new(str(param_ctype), arg_name, **kwargs)
cpp_class = getattr(param, "cpp_class", None)
if isinstance(cpp_class, cppclass.CppClass):
# check if the "helper class" can be constructed
if cpp_class.helper_class is not None:
cpp_class.helper_class.generate_forward_declarations(
MemoryCodeSink())
if cpp_class.helper_class.cannot_be_constructed:
cpp_class.helper_class = None
cpp_class.helper_class_disabled = True
arguments.append(param)
except (typehandlers.TypeLookupError, typehandlers.TypeConfigurationError) as ex:
warnings.warn("***** Unable to register callback; parameter '%s %s' error (used in %s): %r"
% (arg_type, arg_name, cls_name, ex),
Warning)
ok = False
if not ok:
try:
typehandlers.return_type_matcher.lookup(cls_name)[0].DISABLED = True
except typehandlers.TypeLookupError:
pass
try:
typehandlers.param_type_matcher.lookup(cls_name)[0].DISABLED = True
except typehandlers.TypeLookupError:
pass
continue
wrapper = CallbackImplProxyMethod(return_type, arguments)
wrapper.generate(sink, 'operator()', decl_modifiers=[])
sink.unindent()
sink.writeln('};\n')
print("Flushing to ", out, file=sys.stderr)
sink.flush_to(out)
def generate_callback_classes(module, callbacks):
out = module.after_forward_declarations
for callback_impl_num, template_parameters in enumerate(callbacks):
sink = MemoryCodeSink()
cls_name = "ns3::Callback< %s >" % ', '.join(template_parameters)
#print >> sys.stderr, "***** trying to register callback: %r" % cls_name
class_name = "PythonCallbackImpl%i" % callback_impl_num
sink.writeln('''
class %s : public ns3::CallbackImpl<%s>
{
public:
PyObject *m_callback;
%s(PyObject *callback)
{
Py_INCREF(callback);
m_callback = callback;
}
virtual ~%s()
{
PyGILState_STATE __py_gil_state;
__py_gil_state = (PyEval_ThreadsInitialized() ? PyGILState_Ensure() : (PyGILState_STATE) 0);
Py_DECREF(m_callback);
m_callback = NULL;
PyGILState_Release(__py_gil_state);
}
virtual bool IsEqual(ns3::Ptr<const ns3::CallbackImplBase> other_base) const
{
const %s *other = dynamic_cast<const %s*> (ns3::PeekPointer (other_base));
if (other != NULL)
return (other->m_callback == m_callback);
else
return false;
}
''' % (class_name, ', '.join(template_parameters), class_name, class_name,
class_name, class_name))
sink.indent()
callback_return = template_parameters[0]
return_ctype = ctypeparser.parse_type(callback_return)
if ('const' in return_ctype.remove_modifiers()):
kwargs = {'is_const': True}
else:
kwargs = {}
try:
return_type = ReturnValue.new(str(return_ctype), **kwargs)
except (typehandlers.TypeLookupError,
typehandlers.TypeConfigurationError) as ex:
warnings.warn(
"***** Unable to register callback; Return value '%s' error (used in %s): %r"
% (callback_return, cls_name, ex), Warning)
continue
arguments = []
ok = True
callback_parameters = [
arg for arg in template_parameters[1:] if arg != 'ns3::empty'
]
for arg_num, arg_type in enumerate(callback_parameters):
arg_name = 'arg%i' % (arg_num + 1)
param_ctype = ctypeparser.parse_type(arg_type)
if ('const' in param_ctype.remove_modifiers()):
kwargs = {'is_const': True}
else:
kwargs = {}
try:
param = Parameter.new(str(param_ctype), arg_name, **kwargs)
cpp_class = getattr(param, "cpp_class", None)
if isinstance(cpp_class, cppclass.CppClass):
# check if the "helper class" can be constructed
if cpp_class.helper_class is not None:
cpp_class.helper_class.generate_forward_declarations(
MemoryCodeSink())
if cpp_class.helper_class.cannot_be_constructed:
cpp_class.helper_class = None
cpp_class.helper_class_disabled = True
arguments.append(param)
except (typehandlers.TypeLookupError,
typehandlers.TypeConfigurationError) as ex:
warnings.warn(
"***** Unable to register callback; parameter '%s %s' error (used in %s): %r"
% (arg_type, arg_name, cls_name, ex), Warning)
ok = False
if not ok:
try:
typehandlers.return_type_matcher.lookup(
cls_name)[0].DISABLED = True
except typehandlers.TypeLookupError:
pass
try:
typehandlers.param_type_matcher.lookup(
cls_name)[0].DISABLED = True
except typehandlers.TypeLookupError:
pass
continue
wrapper = CallbackImplProxyMethod(return_type, arguments)
wrapper.generate(sink, 'operator()', decl_modifiers=[])
sink.unindent()
sink.writeln('};\n')
print("Flushing to ", out, file=sys.stderr)
sink.flush_to(out)
def generate_callback_classes(out, callbacks):
for callback_impl_num, template_parameters in enumerate(callbacks):
sink = MemoryCodeSink()
cls_name = "ns3::Callback< %s >" % ', '.join(template_parameters)
#print >> sys.stderr, "***** trying to register callback: %r" % cls_name
class_name = "PythonCallbackImpl%i" % callback_impl_num
sink.writeln('''
class %s : public ns3::CallbackImpl<%s>
{
public:
PyObject *m_callback;
%s(PyObject *callback)
{
Py_INCREF(callback);
m_callback = callback;
}
virtual ~%s()
{
Py_DECREF(m_callback);
m_callback = NULL;
}
virtual bool IsEqual(ns3::Ptr<const ns3::CallbackImplBase> other_base) const
{
const %s *other = dynamic_cast<const %s*> (ns3::PeekPointer (other_base));
if (other != NULL)
return (other->m_callback == m_callback);
else
return false;
}
''' % (class_name, ', '.join(template_parameters), class_name, class_name, class_name, class_name))
sink.indent()
callback_return = template_parameters[0]
return_ctype = ctypeparser.parse_type(callback_return)
if ('const' in return_ctype.remove_modifiers()):
kwargs = {'is_const': True}
else:
kwargs = {}
try:
return_type = ReturnValue.new(str(return_ctype), **kwargs)
except (typehandlers.TypeLookupError, typehandlers.TypeConfigurationError), ex:
warnings.warn("***** Unable to register callback; Return value '%s' error (used in %s): %r"
% (callback_return, cls_name, ex),
Warning)
continue
arguments = []
ok = True
callback_parameters = [arg for arg in template_parameters[1:] if arg != 'ns3::empty']
for arg_num, arg_type in enumerate(callback_parameters):
arg_name = 'arg%i' % (arg_num+1)
param_ctype = ctypeparser.parse_type(arg_type)
if ('const' in param_ctype.remove_modifiers()):
kwargs = {'is_const': True}
else:
kwargs = {}
try:
arguments.append(Parameter.new(str(param_ctype), arg_name, **kwargs))
except (typehandlers.TypeLookupError, typehandlers.TypeConfigurationError), ex:
warnings.warn("***** Unable to register callback; parameter '%s %s' error (used in %s): %r"
% (arg_type, arg_name, cls_name, ex),
Warning)
ok = False
def generate_callback_classes(out, callbacks):
for callback_impl_num, template_parameters in enumerate(callbacks):
sink = MemoryCodeSink()
cls_name = "ns3::Callback< %s >" % ', '.join(template_parameters)
#print >> sys.stderr, "***** trying to register callback: %r" % cls_name
class_name = "PythonCallbackImpl%i" % callback_impl_num
sink.writeln('''
class %s : public ns3::CallbackImpl<%s>
{
public:
PyObject *m_callback;
%s(PyObject *callback)
{
Py_INCREF(callback);
m_callback = callback;
}
virtual ~%s()
{
PyGILState_STATE __py_gil_state;
__py_gil_state = (PyEval_ThreadsInitialized() ? PyGILState_Ensure() : (PyGILState_STATE) 0);
Py_DECREF(m_callback);
m_callback = NULL;
PyGILState_Release(__py_gil_state);
}
virtual bool IsEqual(ns3::Ptr<const ns3::CallbackImplBase> other_base) const
{
const %s *other = dynamic_cast<const %s*> (ns3::PeekPointer (other_base));
if (other != NULL)
return (other->m_callback == m_callback);
else
return false;
}
''' % (class_name, ', '.join(template_parameters), class_name, class_name, class_name, class_name))
sink.indent()
callback_return = template_parameters[0]
return_ctype = ctypeparser.parse_type(callback_return)
if ('const' in return_ctype.remove_modifiers()):
kwargs = {'is_const': True}
else:
kwargs = {}
try:
return_type = ReturnValue.new(str(return_ctype), **kwargs)
except (typehandlers.TypeLookupError, typehandlers.TypeConfigurationError) as ex:
warnings.warn("***** Unable to register callback; Return value '%s' error (used in %s): %r"
% (callback_return, cls_name, ex),
Warning)
continue
arguments = []
ok = True
callback_parameters = [arg for arg in template_parameters[1:] if arg != 'ns3::empty']
for arg_num, arg_type in enumerate(callback_parameters):
arg_name = 'arg%i' % (arg_num+1)
param_ctype = ctypeparser.parse_type(arg_type)
if ('const' in param_ctype.remove_modifiers()):
kwargs = {'is_const': True}
else:
kwargs = {}
try:
arguments.append(Parameter.new(str(param_ctype), arg_name, **kwargs))
except (typehandlers.TypeLookupError, typehandlers.TypeConfigurationError) as ex:
warnings.warn("***** Unable to register callback; parameter '%s %s' error (used in %s): %r"
% (arg_type, arg_name, cls_name, ex),
Warning)
ok = False
if not ok:
continue
wrapper = CallbackImplProxyMethod(return_type, arguments)
wrapper.generate(sink, 'operator()', decl_modifiers=[])
sink.unindent()
sink.writeln('};\n')
sink.flush_to(out)
class PythonCallbackParameter(Parameter):
"Class handlers"
CTYPES = [cls_name]
print("***** registering callback handler: %r" % ctypeparser.normalize_type_string(cls_name), file=sys.stderr)
DIRECTIONS = [Parameter.DIRECTION_IN]
PYTHON_CALLBACK_IMPL_NAME = class_name
TEMPLATE_ARGS = template_parameters
def convert_python_to_c(self, wrapper):
"parses python args to get C++ value"
assert isinstance(wrapper, typehandlers.ForwardWrapperBase)
if self.default_value is None:
py_callback = wrapper.declarations.declare_variable('PyObject*', self.name)
wrapper.parse_params.add_parameter('O', ['&'+py_callback], self.name)
wrapper.before_call.write_error_check(
'!PyCallable_Check(%s)' % py_callback,
'PyErr_SetString(PyExc_TypeError, "parameter \'%s\' must be callbale");' % self.name)
callback_impl = wrapper.declarations.declare_variable(
'ns3::Ptr<%s>' % self.PYTHON_CALLBACK_IMPL_NAME,
'%s_cb_impl' % self.name)
wrapper.before_call.write_code("%s = ns3::Create<%s> (%s);"
% (callback_impl, self.PYTHON_CALLBACK_IMPL_NAME, py_callback))
wrapper.call_params.append(
'ns3::Callback<%s> (%s)' % (', '.join(self.TEMPLATE_ARGS), callback_impl))
else:
py_callback = wrapper.declarations.declare_variable('PyObject*', self.name, 'NULL')
wrapper.parse_params.add_parameter('O', ['&'+py_callback], self.name, optional=True)
value = wrapper.declarations.declare_variable(
'ns3::Callback<%s>' % ', '.join(self.TEMPLATE_ARGS),
self.name+'_value',
self.default_value)
wrapper.before_call.write_code("if (%s) {" % (py_callback,))
wrapper.before_call.indent()
wrapper.before_call.write_error_check(
'!PyCallable_Check(%s)' % py_callback,
'PyErr_SetString(PyExc_TypeError, "parameter \'%s\' must be callbale");' % self.name)
wrapper.before_call.write_code("%s = ns3::Callback<%s> (ns3::Create<%s> (%s));"
% (value, ', '.join(self.TEMPLATE_ARGS),
self.PYTHON_CALLBACK_IMPL_NAME, py_callback))
wrapper.before_call.unindent()
wrapper.before_call.write_code("}") # closes: if (py_callback) {
wrapper.call_params.append(value)
def convert_c_to_python(self, wrapper):
raise typehandlers.NotSupportedError("Reverse wrappers for ns3::Callback<...> types "
"(python using callbacks defined in C++) not implemented.")
def generate_callback_classes(out, callbacks):
for callback_impl_num, template_parameters in enumerate(callbacks):
sink = MemoryCodeSink()
cls_name = "ns3::Callback< %s >" % ', '.join(template_parameters)
#print >> sys.stderr, "***** trying to register callback: %r" % cls_name
class_name = "PythonCallbackImpl%i" % callback_impl_num
sink.writeln('''
class %s : public ns3::CallbackImpl<%s>
{
public:
PyObject *m_callback;
%s(PyObject *callback)
{
Py_INCREF(callback);
m_callback = callback;
}
virtual ~%s()
{
PyGILState_STATE __py_gil_state;
__py_gil_state = (PyEval_ThreadsInitialized() ? PyGILState_Ensure() : (PyGILState_STATE) 0);
Py_DECREF(m_callback);
m_callback = NULL;
PyGILState_Release(__py_gil_state);
}
virtual bool IsEqual(ns3::Ptr<const ns3::CallbackImplBase> other_base) const
{
const %s *other = dynamic_cast<const %s*> (ns3::PeekPointer (other_base));
if (other != NULL)
return (other->m_callback == m_callback);
else
return false;
}
''' % (class_name, ', '.join(template_parameters), class_name, class_name,
class_name, class_name))
sink.indent()
callback_return = template_parameters[0]
return_ctype = ctypeparser.parse_type(callback_return)
if ('const' in return_ctype.remove_modifiers()):
kwargs = {'is_const': True}
else:
kwargs = {}
try:
return_type = ReturnValue.new(str(return_ctype), **kwargs)
except (typehandlers.TypeLookupError,
typehandlers.TypeConfigurationError) as ex:
warnings.warn(
"***** Unable to register callback; Return value '%s' error (used in %s): %r"
% (callback_return, cls_name, ex), Warning)
continue
arguments = []
ok = True
callback_parameters = [
arg for arg in template_parameters[1:] if arg != 'ns3::empty'
]
for arg_num, arg_type in enumerate(callback_parameters):
arg_name = 'arg%i' % (arg_num + 1)
param_ctype = ctypeparser.parse_type(arg_type)
if ('const' in param_ctype.remove_modifiers()):
kwargs = {'is_const': True}
else:
kwargs = {}
try:
arguments.append(
Parameter.new(str(param_ctype), arg_name, **kwargs))
except (typehandlers.TypeLookupError,
typehandlers.TypeConfigurationError) as ex:
warnings.warn(
"***** Unable to register callback; parameter '%s %s' error (used in %s): %r"
% (arg_type, arg_name, cls_name, ex), Warning)
ok = False
if not ok:
continue
wrapper = CallbackImplProxyMethod(return_type, arguments)
wrapper.generate(sink, 'operator()', decl_modifiers=[])
sink.unindent()
sink.writeln('};\n')
sink.flush_to(out)
class PythonCallbackParameter(Parameter):
"Class handlers"
CTYPES = [cls_name]
print("***** registering callback handler: %r" %
ctypeparser.normalize_type_string(cls_name),
file=sys.stderr)
DIRECTIONS = [Parameter.DIRECTION_IN]
PYTHON_CALLBACK_IMPL_NAME = class_name
TEMPLATE_ARGS = template_parameters
def convert_python_to_c(self, wrapper):
"parses python args to get C++ value"
assert isinstance(wrapper, typehandlers.ForwardWrapperBase)
if self.default_value is None:
py_callback = wrapper.declarations.declare_variable(
'PyObject*', self.name)
wrapper.parse_params.add_parameter('O',
['&' + py_callback],
self.name)
wrapper.before_call.write_error_check(
'!PyCallable_Check(%s)' % py_callback,
'PyErr_SetString(PyExc_TypeError, "parameter \'%s\' must be callbale");'
% self.name)
callback_impl = wrapper.declarations.declare_variable(
'ns3::Ptr<%s>' % self.PYTHON_CALLBACK_IMPL_NAME,
'%s_cb_impl' % self.name)
wrapper.before_call.write_code(
"%s = ns3::Create<%s> (%s);" %
(callback_impl, self.PYTHON_CALLBACK_IMPL_NAME,
py_callback))
wrapper.call_params.append(
'ns3::Callback<%s> (%s)' %
(', '.join(self.TEMPLATE_ARGS), callback_impl))
else:
py_callback = wrapper.declarations.declare_variable(
'PyObject*', self.name, 'NULL')
wrapper.parse_params.add_parameter('O',
['&' + py_callback],
self.name,
optional=True)
value = wrapper.declarations.declare_variable(
'ns3::Callback<%s>' % ', '.join(self.TEMPLATE_ARGS),
self.name + '_value', self.default_value)
wrapper.before_call.write_code("if (%s) {" %
(py_callback, ))
wrapper.before_call.indent()
wrapper.before_call.write_error_check(
'!PyCallable_Check(%s)' % py_callback,
'PyErr_SetString(PyExc_TypeError, "parameter \'%s\' must be callbale");'
% self.name)
wrapper.before_call.write_code(
"%s = ns3::Callback<%s> (ns3::Create<%s> (%s));" %
(value, ', '.join(self.TEMPLATE_ARGS),
self.PYTHON_CALLBACK_IMPL_NAME, py_callback))
wrapper.before_call.unindent()
wrapper.before_call.write_code(
"}") # closes: if (py_callback) {
wrapper.call_params.append(value)
def convert_c_to_python(self, wrapper):
raise typehandlers.NotSupportedError(
"Reverse wrappers for ns3::Callback<...> types "
"(python using callbacks defined in C++) not implemented.")
