+++ /dev/null
-#!/usr/bin/env python2
-#
-# Copyright (c) 2018 Cisco and/or its affiliates.
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at:
-#
-# http://www.apache.org/licenses/LICENSE-2.0
-#
-# 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 License for the specific language governing permissions and
-# limitations under the License.
-#
-from string import Template
-
-from jni_common_gen import generate_j2c_swap, generate_j2c_field_swap, generate_j2c_identifiers, generate_c2j_swap
-from jvpp_model import Class, Enum, Union
-
-
-def generate_type_handlers(model, logger):
- """
- Generates host-to-net and net-to-host functions for all custom types defined in the VPP API
- :param model: meta-model of VPP API used for jVPP generation.
- :param logger: jVPP logger
- """
- type_handlers = []
- for t in model.types:
- #TODO(VPP-1186): move the logic to JNI generators
- if isinstance(t, Class):
- _generate_class(model, t, type_handlers)
- elif isinstance(t, Enum):
- _generate_enum(model, t, type_handlers)
- elif isinstance(t, Union):
- _generate_union(model, t, type_handlers)
- else:
- logger.debug("Skipping custom JNI type handler generation for %s", t)
-
- return "\n".join(type_handlers)
-
-
-def _generate_class(model, t, type_handlers):
- ref_name = t.java_name_lower
- if t.name in model._aliases:
- is_alias = True
- else:
- is_alias = False
-
- type_handlers.append(_TYPE_HOST_TO_NET_TEMPLATE.substitute(
- c_name=t.name,
- json_filename=model.json_api_files,
- json_definition=t.doc,
- type_reference_name=ref_name,
- class_FQN=t.jni_name,
- jni_identifiers=generate_j2c_identifiers(t, class_ref_name="%sClass" % ref_name, object_ref_name="_host"),
- type_swap=generate_j2c_swap(t, struct_ref_name="_net", is_alias=is_alias)
- ))
- type_handlers.append(_TYPE_NET_TO_HOST_TEMPLATE.substitute(
- c_name=t.name,
- json_filename=model.json_api_files,
- json_definition=t.doc,
- type_reference_name=ref_name,
- class_FQN=t.jni_name,
- type_swap=generate_c2j_swap(t, object_ref_name="_host", struct_ref_name="_net", is_alias=is_alias)
- ))
-
-_TYPE_HOST_TO_NET_TEMPLATE = Template("""
-/**
- * Host to network byte order conversion for ${c_name} type.
- * Generated based on $json_filename:
-$json_definition
- */
-static inline void _host_to_net_${c_name}(JNIEnv * env, jobject _host, vl_api_${c_name}_t * _net)
-{
- jclass ${type_reference_name}Class = (*env)->FindClass(env, "${class_FQN}");
-$jni_identifiers
-$type_swap
-}""")
-
-_TYPE_NET_TO_HOST_TEMPLATE = Template("""
-/**
- * Network to host byte order conversion for ${c_name} type.
- * Generated based on $json_filename:
-$json_definition
- */
-static inline void _net_to_host_${c_name}(JNIEnv * env, vl_api_${c_name}_t * _net, jobject _host)
-{
- jclass ${type_reference_name}Class = (*env)->FindClass(env, "${class_FQN}");
-$type_swap
-}""")
-
-
-def _generate_enum(model, t, type_handlers):
- value_type = t.value.type
- type_handlers.append(_ENUM_NET_TO_HOST_TEMPLATE.substitute(
- c_name=t.name,
- json_filename=model.json_api_files,
- json_definition=t.doc,
- class_FQN=t.jni_name,
- jni_signature=value_type.jni_signature,
- jni_type=value_type.jni_type,
- jni_accessor=value_type.jni_accessor,
- swap=_generate_scalar_host_to_net_swap(t.value)
- ))
-
- type_handlers.append(_ENUM_HOST_TO_NET_TEMPLATE.substitute(
- c_name=t.name,
- json_filename=model.json_api_files,
- json_definition=t.doc,
- class_FQN=t.jni_name,
- jni_type=value_type.jni_type,
- type_swap=_generate_scalar_net_to_host_swap(t.value)
- ))
-
-_ENUM_NET_TO_HOST_TEMPLATE = Template("""
-/**
- * Host to network byte order conversion for ${c_name} enum.
- * Generated based on $json_filename:
-$json_definition
- */
-static inline void _host_to_net_${c_name}(JNIEnv * env, jobject _host, vl_api_${c_name}_t * _net)
-{
- jclass enumClass = (*env)->FindClass(env, "${class_FQN}");
- jmethodID getValueMethod = (*env)->GetMethodID(env, enumClass, "ordinal", "()I");
- ${jni_type} value = (*env)->CallIntMethod(env, _host, getValueMethod);
- ${swap};
-}""")
-
-_ENUM_HOST_TO_NET_TEMPLATE = Template("""
-/**
- * Network to host byte order conversion for ${c_name} type.
- * Generated based on $json_filename:
-$json_definition
- */
-static inline ${jni_type} _net_to_host_${c_name}(vl_api_${c_name}_t _net)
-{
- return (${jni_type}) $type_swap
-}""")
-
-
-def _generate_scalar_host_to_net_swap(field):
- field_type = field.type
- if field_type.is_swap_needed:
- return field_type.get_host_to_net_function(field.java_name, "*_net")
- else:
- return "*_net = %s" % field.java_name
-
-
-def _generate_scalar_net_to_host_swap(field):
- field_type = field.type
- if field_type.is_swap_needed:
- return "%s((%s) _net);" % (field_type.net_to_host_function, field_type.name)
- else:
- return "_net"
-
-
-def _generate_union(model, t, type_handlers):
- type_handlers.append(_generate_union_host_to_net(model, t))
- type_handlers.append(_generate_union_net_to_host(model, t))
-
-
-def _generate_union_host_to_net(model, t):
- swap = []
- for i, field in enumerate(t.fields):
- field_type = field.type
- if t.name in model._aliases:
- is_alias = True
- else:
- is_alias = False
- swap.append(_UNION_FIELD_HOST_TO_NET_TEMPLATE.substitute(
- field_index=i,
- java_name=field.java_name,
- jni_signature=field_type.jni_signature,
- jni_type=field_type.jni_type,
- jni_accessor=field_type.jni_accessor,
- swap=generate_j2c_field_swap(field, struct_ref_name="_net", is_alias=is_alias)
- ))
-
- return _UNION_HOST_TO_NET_TEMPLATE.substitute(
- c_name=t.name,
- json_filename=model.json_api_files,
- json_definition=t.doc,
- class_FQN=t.jni_name,
- swap="".join(swap)
- )
-
-_UNION_FIELD_HOST_TO_NET_TEMPLATE = Template("""
- if (_activeMember == ${field_index}) {
- jfieldID fieldId = (*env)->GetFieldID(env, _class, "${java_name}", "${jni_signature}");
- ${jni_type} ${java_name} = (*env)->Get${jni_accessor}Field(env, _host, fieldId);
- ${swap}
- }""")
-
-_UNION_HOST_TO_NET_TEMPLATE = Template("""
-/**
- * Host to network byte order conversion for ${c_name} union.
- * Generated based on $json_filename:
-$json_definition
- */
-static inline void _host_to_net_${c_name}(JNIEnv * env, jobject _host, vl_api_${c_name}_t * _net)
-{
- jclass _class = (*env)->FindClass(env, "${class_FQN}");
-
- jfieldID _activeMemberFieldId = (*env)->GetFieldID(env, _class, "_activeMember", "I");
- jint _activeMember = (*env)->GetIntField(env, _host, _activeMemberFieldId);
-$swap
-}""")
-
-
-def _generate_union_net_to_host(model, t):
- if t.name in model._aliases:
- is_alias = True
- else:
- is_alias = False
- return _UNION_NET_TO_HOST_TEMPLATE.substitute(
- c_name=t.name,
- json_filename=model.json_api_files,
- json_definition=t.doc,
- type_reference_name=t.java_name_lower,
- class_FQN=t.jni_name,
- swap=generate_c2j_swap(t, object_ref_name="_host", struct_ref_name="_net", is_alias=is_alias)
- )
-
-_UNION_NET_TO_HOST_TEMPLATE = Template("""
-/**
- * Network to host byte order conversion for ${c_name} union.
- * Generated based on $json_filename:
-$json_definition
- */
-static inline void _net_to_host_${c_name}(JNIEnv * env, vl_api_${c_name}_t * _net, jobject _host)
-{
- jclass ${type_reference_name}Class = (*env)->FindClass(env, "${class_FQN}");
-$swap
-}""")
Code Review / vpp.git / blobdiff