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# 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);
}
""")