c_gen/c_show_gen.py - onos-loxi - Gitiles

 # Copyright 2013, Big Switch Networks, Inc.
 #
 # LoxiGen is licensed under the Eclipse Public License, version 1.0 (EPL), with
 # the following special exception:
 #
 # LOXI Exception
 #
 # As a special exception to the terms of the EPL, you may distribute libraries
 # generated by LoxiGen (LoxiGen Libraries) under the terms of your choice, provided
 # that copyright and licensing notices generated by LoxiGen are not altered or removed
 # from the LoxiGen Libraries and the notice provided below is (i) included in
 # the LoxiGen Libraries, if distributed in source code form and (ii) included in any
 # documentation for the LoxiGen Libraries, if distributed in binary form.
 #
 # Notice: "Copyright 2013, Big Switch Networks, Inc. This library was generated by the LoxiGen Compiler."
 #
 # You may not use this file except in compliance with the EPL or LOXI Exception. You may obtain
 # a copy of the EPL at:
 #
 # http://www.eclipse.org/legal/epl-v10.html
 #
 # Unless required by applicable law or agreed to in writing, software
 # distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 # WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 # EPL for the specific language governing permissions and limitations
 # under the EPL.

 """
 @brief Show function generation

 Generates show function files.

 """

 import sys
 import of_g
 import loxi_front_end.match as match
 import loxi_front_end.flags as flags
 from generic_utils import *
 import loxi_front_end.type_maps as type_maps
 import loxi_utils.loxi_utils as loxi_utils
 import loxi_front_end.identifiers as identifiers
 from c_test_gen import var_name_map

 def gen_obj_show_h(out, name):
     loxi_utils.gen_c_copy_license(out)
     out.write("""
 /**
  *
  * AUTOMATICALLY GENERATED FILE.  Edits will be lost on regen.
  *
  * Header file for object showing.
  */

 /**
  * Show  object declarations
  *
  * Routines that emit a human-readable dump of each object.
  *
  */

 #if !defined(_LOCI_OBJ_SHOW_H_)
 #define _LOCI_OBJ_SHOW_H_

 #include <loci/loci.h>
 #include <stdio.h>

 /* g++ requires this to pick up PRI, etc.
  * See  http://gcc.gnu.org/ml/gcc-help/2006-10/msg00223.html
  */
 #if !defined(__STDC_FORMAT_MACROS)
 #define __STDC_FORMAT_MACROS
 #endif
 #include <inttypes.h>


 /**
  * Show any OF object.
  */
 int of_object_show(loci_writer_f writer, void* cookie, of_object_t* obj);


 """)

     type_to_emitter = dict(

         )
     for version in of_g.of_version_range:
         for cls in of_g.standard_class_order:
             if not loxi_utils.class_in_version(cls, version):
                 continue
             if cls in type_maps.inheritance_map:
                 continue
             out.write("""\
 int %(cls)s_%(ver_name)s_show(loci_writer_f writer, void* cookie, %(cls)s_t *obj);
 """ % dict(cls=cls, ver_name=loxi_utils.version_to_name(version)))

     out.write("""
 #endif /* _LOCI_OBJ_SHOW_H_ */
 """)

 def gen_obj_show_c(out, name):
     loxi_utils.gen_c_copy_license(out)
     out.write("""
 /**
  *
  * AUTOMATICALLY GENERATED FILE.  Edits will be lost on regen.
  *
  * Source file for object showing.
  *
  */

 #define DISABLE_WARN_UNUSED_RESULT
 #include <loci/loci.h>
 #include <loci/loci_show.h>
 #include <loci/loci_obj_show.h>

 static int
 unknown_show(loci_writer_f writer, void* cookie, of_object_t *obj)
 {
     return writer(cookie, "Unable to print object of type %d, version %d\\n",
                          obj->object_id, obj->version);
 }
 """)

     for version in of_g.of_version_range:
         ver_name = loxi_utils.version_to_name(version)
         for cls in of_g.standard_class_order:
             if not loxi_utils.class_in_version(cls, version):
                 continue
             if cls in type_maps.inheritance_map:
                 continue
             out.write("""
 int
 %(cls)s_%(ver_name)s_show(loci_writer_f writer, void* cookie, %(cls)s_t *obj)
 {
     int out = 0;
 """ % dict(cls=cls, ver_name=ver_name))

             members, member_types = loxi_utils.all_member_types_get(cls, version)
             for m_type in member_types:
                 if loxi_utils.type_is_scalar(m_type) or m_type in \
                         ["of_match_t", "of_octets_t"]:
                     # Declare instance of these
                     out.write("    %s %s;\n" % (m_type, var_name_map(m_type)))
                 else:
                     out.write("""
     %(m_type)s %(v_name)s;
 """  % dict(m_type=m_type, v_name=var_name_map(m_type)))
                     if loxi_utils.class_is_list(m_type):
                         base_type = loxi_utils.list_to_entry_type(m_type)
                         out.write("    %s elt;\n    int rv;\n" % base_type)
             for member in members:
                 m_type = member["m_type"]
                 m_name = member["name"]
                 #emitter = "LOCI_SHOW_" + loxi_utils.type_to_short_name(m_type)
                 emitter = "LOCI_SHOW_" + loxi_utils.type_to_short_name(m_type) + "_" + m_name;
                 if loxi_utils.skip_member_name(m_name):
                     continue
                 if (loxi_utils.type_is_scalar(m_type) or
                     m_type in ["of_match_t", "of_octets_t"]):
                     out.write("""
     %(cls)s_%(m_name)s_get(obj, &%(v_name)s);
     out += writer(cookie, "%(m_name)s=");
     out += %(emitter)s(writer, cookie, %(v_name)s);
     out += writer(cookie, " ");
 """ % dict(cls=cls, m_name=m_name, m_type=m_type,
            v_name=var_name_map(m_type), emitter=emitter))
                 elif loxi_utils.class_is_list(m_type):
                     sub_cls = m_type[:-2] # Trim _t
                     elt_type = loxi_utils.list_to_entry_type(m_type)
                     out.write("""
     out += writer(cookie, "%(elt_type)s={ ");
     %(cls)s_%(m_name)s_bind(obj, &%(v_name)s);
     %(u_type)s_ITER(&%(v_name)s, &elt, rv) {
         of_object_show(writer, cookie, (of_object_t *)&elt);
     }
     out += writer(cookie, "} ");
 """ % dict(sub_cls=sub_cls, u_type=sub_cls.upper(), v_name=var_name_map(m_type),
            elt_type=elt_type, cls=cls, m_name=m_name, m_type=m_type))
                 else:
                     sub_cls = m_type[:-2] # Trim _t
                     out.write("""
     %(cls)s_%(m_name)s_bind(obj, &%(v_name)s);
     out += %(sub_cls)s_%(ver_name)s_show(writer, cookie, &%(v_name)s);
 """ % dict(cls=cls, sub_cls=sub_cls, m_name=m_name,
            v_name=var_name_map(m_type), ver_name=ver_name))

             out.write("""
     return out;
 }
 """)
     out.write("""
 /**
  * Log a match entry
  */
 int
 loci_show_match(loci_writer_f writer, void* cookie, of_match_t *match)
 {
     int out = 0;
 """)

     for key, entry in match.of_match_members.items():
         m_type = entry["m_type"]
         #emitter = "LOCI_SHOW_" + loxi_utils.type_to_short_name(m_type)
         emitter = "LOCI_SHOW_" + loxi_utils.type_to_short_name(m_type) + "_" + key;
         out.write("""
     if (OF_MATCH_MASK_%(ku)s_ACTIVE_TEST(match)) {
         out += writer(cookie, "%(key)s active=");
         out += %(emitter)s(writer, cookie, match->fields.%(key)s);
         out += writer(cookie, "/");
         out += %(emitter)s(writer, cookie, match->masks.%(key)s);
         out += writer(cookie, " ");
     }
 """ % dict(key=key, ku=key.upper(), emitter=emitter, m_type=m_type))

     out.write("""
     return out;
 }
 """)

     # Generate big table indexed by version and object
     for version in of_g.of_version_range:
         out.write("""
 static const loci_obj_show_f show_funs_v%(version)s[OF_OBJECT_COUNT] = {
 """ % dict(version=version))
         out.write("    unknown_show, /* of_object, not a valid specific type */\n")
         for j, cls in enumerate(of_g.all_class_order):
             comma = ""
             if j < len(of_g.all_class_order) - 1: # Avoid ultimate comma
                 comma = ","

             if (not loxi_utils.class_in_version(cls, version) or
                     cls in type_maps.inheritance_map):
                 out.write("    unknown_show%s\n" % comma);
             else:
                 out.write("    %s_%s_show%s\n" %
                           (cls, loxi_utils.version_to_name(version), comma))
         out.write("};\n\n")

     out.write("""
 static const loci_obj_show_f *const show_funs[5] = {
     NULL,
     show_funs_v1,
     show_funs_v2,
     show_funs_v3,
     show_funs_v4
 };

 int
 of_object_show(loci_writer_f writer, void* cookie, of_object_t *obj)
 {
     if ((obj->object_id > 0) && (obj->object_id < OF_OBJECT_COUNT)) {
         if (((obj)->version > 0) && ((obj)->version <= OF_VERSION_1_2)) {
             /* @fixme VERSION */
             return show_funs[obj->version][obj->object_id](writer, cookie, (of_object_t *)obj);
         } else {
             return writer(cookie, "Bad version %d\\n", obj->version);
         }
     }
     return writer(cookie, "Bad object id %d\\n", obj->object_id);
 }
 """)
	# Copyright 2013, Big Switch Networks, Inc.
	#
	# LoxiGen is licensed under the Eclipse Public License, version 1.0 (EPL), with
	# the following special exception:
	#
	# LOXI Exception
	#
	# As a special exception to the terms of the EPL, you may distribute libraries
	# generated by LoxiGen (LoxiGen Libraries) under the terms of your choice, provided
	# that copyright and licensing notices generated by LoxiGen are not altered or removed
	# from the LoxiGen Libraries and the notice provided below is (i) included in
	# the LoxiGen Libraries, if distributed in source code form and (ii) included in any
	# documentation for the LoxiGen Libraries, if distributed in binary form.
	#
	# Notice: "Copyright 2013, Big Switch Networks, Inc. This library was generated by the LoxiGen Compiler."
	#
	# You may not use this file except in compliance with the EPL or LOXI Exception. You may obtain
	# a copy of the EPL at:
	#
	# http://www.eclipse.org/legal/epl-v10.html
	#
	# Unless required by applicable law or agreed to in writing, software
	# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
	# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
	# EPL for the specific language governing permissions and limitations
	# under the EPL.

	"""
	@brief Show function generation

	Generates show function files.

	"""

	import sys
	import of_g
	import loxi_front_end.match as match
	import loxi_front_end.flags as flags
	from generic_utils import *
	import loxi_front_end.type_maps as type_maps
	import loxi_utils.loxi_utils as loxi_utils
	import loxi_front_end.identifiers as identifiers
	from c_test_gen import var_name_map

	def gen_obj_show_h(out, name):
	loxi_utils.gen_c_copy_license(out)
	out.write("""
	/**
	*
	* AUTOMATICALLY GENERATED FILE. Edits will be lost on regen.
	*
	* Header file for object showing.
	*/

	/**
	* Show object declarations
	*
	* Routines that emit a human-readable dump of each object.
	*
	*/

	#if !defined(_LOCI_OBJ_SHOW_H_)
	#define _LOCI_OBJ_SHOW_H_

	#include <loci/loci.h>
	#include <stdio.h>

	/* g++ requires this to pick up PRI, etc.
	* See http://gcc.gnu.org/ml/gcc-help/2006-10/msg00223.html
	*/
	#if !defined(__STDC_FORMAT_MACROS)
	#define __STDC_FORMAT_MACROS
	#endif
	#include <inttypes.h>


	/**
	* Show any OF object.
	*/
	int of_object_show(loci_writer_f writer, void* cookie, of_object_t* obj);






	""")

	type_to_emitter = dict(

	)
	for version in of_g.of_version_range:
	for cls in of_g.standard_class_order:
	if not loxi_utils.class_in_version(cls, version):
	continue
	if cls in type_maps.inheritance_map:
	continue
	out.write("""\
	int %(cls)s_%(ver_name)s_show(loci_writer_f writer, void* cookie, %(cls)s_t *obj);
	""" % dict(cls=cls, ver_name=loxi_utils.version_to_name(version)))

	out.write("""
	#endif /* _LOCI_OBJ_SHOW_H_ */
	""")

	def gen_obj_show_c(out, name):
	loxi_utils.gen_c_copy_license(out)
	out.write("""
	/**
	*
	* AUTOMATICALLY GENERATED FILE. Edits will be lost on regen.
	*
	* Source file for object showing.
	*
	*/

	#define DISABLE_WARN_UNUSED_RESULT
	#include <loci/loci.h>
	#include <loci/loci_show.h>
	#include <loci/loci_obj_show.h>

	static int
	unknown_show(loci_writer_f writer, void* cookie, of_object_t *obj)
	{
	return writer(cookie, "Unable to print object of type %d, version %d\\n",
	obj->object_id, obj->version);
	}
	""")

	for version in of_g.of_version_range:
	ver_name = loxi_utils.version_to_name(version)
	for cls in of_g.standard_class_order:
	if not loxi_utils.class_in_version(cls, version):
	continue
	if cls in type_maps.inheritance_map:
	continue
	out.write("""
	int
	%(cls)s_%(ver_name)s_show(loci_writer_f writer, void* cookie, %(cls)s_t *obj)
	{
	int out = 0;
	""" % dict(cls=cls, ver_name=ver_name))

	members, member_types = loxi_utils.all_member_types_get(cls, version)
	for m_type in member_types:
	if loxi_utils.type_is_scalar(m_type) or m_type in \
	["of_match_t", "of_octets_t"]:
	# Declare instance of these
	out.write(" %s %s;\n" % (m_type, var_name_map(m_type)))
	else:
	out.write("""
	%(m_type)s %(v_name)s;
	""" % dict(m_type=m_type, v_name=var_name_map(m_type)))
	if loxi_utils.class_is_list(m_type):
	base_type = loxi_utils.list_to_entry_type(m_type)
	out.write(" %s elt;\n int rv;\n" % base_type)
	for member in members:
	m_type = member["m_type"]
	m_name = member["name"]
	#emitter = "LOCI_SHOW_" + loxi_utils.type_to_short_name(m_type)
	emitter = "LOCI_SHOW_" + loxi_utils.type_to_short_name(m_type) + "_" + m_name;
	if loxi_utils.skip_member_name(m_name):
	continue
	if (loxi_utils.type_is_scalar(m_type) or
	m_type in ["of_match_t", "of_octets_t"]):
	out.write("""
	%(cls)s_%(m_name)s_get(obj, &%(v_name)s);
	out += writer(cookie, "%(m_name)s=");
	out += %(emitter)s(writer, cookie, %(v_name)s);
	out += writer(cookie, " ");
	""" % dict(cls=cls, m_name=m_name, m_type=m_type,
	v_name=var_name_map(m_type), emitter=emitter))
	elif loxi_utils.class_is_list(m_type):
	sub_cls = m_type[:-2] # Trim _t
	elt_type = loxi_utils.list_to_entry_type(m_type)
	out.write("""
	out += writer(cookie, "%(elt_type)s={ ");
	%(cls)s_%(m_name)s_bind(obj, &%(v_name)s);
	%(u_type)s_ITER(&%(v_name)s, &elt, rv) {
	of_object_show(writer, cookie, (of_object_t *)&elt);
	}
	out += writer(cookie, "} ");
	""" % dict(sub_cls=sub_cls, u_type=sub_cls.upper(), v_name=var_name_map(m_type),
	elt_type=elt_type, cls=cls, m_name=m_name, m_type=m_type))
	else:
	sub_cls = m_type[:-2] # Trim _t
	out.write("""
	%(cls)s_%(m_name)s_bind(obj, &%(v_name)s);
	out += %(sub_cls)s_%(ver_name)s_show(writer, cookie, &%(v_name)s);
	""" % dict(cls=cls, sub_cls=sub_cls, m_name=m_name,
	v_name=var_name_map(m_type), ver_name=ver_name))

	out.write("""
	return out;
	}
	""")
	out.write("""
	/**
	* Log a match entry
	*/
	int
	loci_show_match(loci_writer_f writer, void* cookie, of_match_t *match)
	{
	int out = 0;
	""")

	for key, entry in match.of_match_members.items():
	m_type = entry["m_type"]
	#emitter = "LOCI_SHOW_" + loxi_utils.type_to_short_name(m_type)
	emitter = "LOCI_SHOW_" + loxi_utils.type_to_short_name(m_type) + "_" + key;
	out.write("""
	if (OF_MATCH_MASK_%(ku)s_ACTIVE_TEST(match)) {
	out += writer(cookie, "%(key)s active=");
	out += %(emitter)s(writer, cookie, match->fields.%(key)s);
	out += writer(cookie, "/");
	out += %(emitter)s(writer, cookie, match->masks.%(key)s);
	out += writer(cookie, " ");
	}
	""" % dict(key=key, ku=key.upper(), emitter=emitter, m_type=m_type))

	out.write("""
	return out;
	}
	""")

	# Generate big table indexed by version and object
	for version in of_g.of_version_range:
	out.write("""
	static const loci_obj_show_f show_funs_v%(version)s[OF_OBJECT_COUNT] = {
	""" % dict(version=version))
	out.write(" unknown_show, /* of_object, not a valid specific type */\n")
	for j, cls in enumerate(of_g.all_class_order):
	comma = ""
	if j < len(of_g.all_class_order) - 1: # Avoid ultimate comma
	comma = ","

	if (not loxi_utils.class_in_version(cls, version) or
	cls in type_maps.inheritance_map):
	out.write(" unknown_show%s\n" % comma);
	else:
	out.write(" %s_%s_show%s\n" %
	(cls, loxi_utils.version_to_name(version), comma))
	out.write("};\n\n")

	out.write("""
	static const loci_obj_show_f *const show_funs[5] = {
	NULL,
	show_funs_v1,
	show_funs_v2,
	show_funs_v3,
	show_funs_v4
	};

	int
	of_object_show(loci_writer_f writer, void* cookie, of_object_t *obj)
	{
	if ((obj->object_id > 0) && (obj->object_id < OF_OBJECT_COUNT)) {
	if (((obj)->version > 0) && ((obj)->version <= OF_VERSION_1_2)) {
	/* @fixme VERSION */
	return show_funs[obj->version][obj->object_id](writer, cookie, (of_object_t *)obj);
	} else {
	return writer(cookie, "Bad version %d\\n", obj->version);
	}
	}
	return writer(cookie, "Bad object id %d\\n", obj->object_id);
	}
	""")