diff options
Diffstat (limited to 'extras/japi/java/jvpp/gen/jvppgen/jni_impl_gen.py')
| -rwxr-xr-x | extras/japi/java/jvpp/gen/jvppgen/jni_impl_gen.py | 116 |
1 files changed, 0 insertions, 116 deletions
diff --git a/extras/japi/java/jvpp/gen/jvppgen/jni_impl_gen.py b/extras/japi/java/jvpp/gen/jvppgen/jni_impl_gen.py deleted file mode 100755 index 2941778f208..00000000000 --- a/extras/japi/java/jvpp/gen/jvppgen/jni_impl_gen.py +++ /dev/null @@ -1,116 +0,0 @@ -#!/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_identifiers, generate_j2c_swap -from jvpp_model import is_dump, is_request, is_control_ping, is_control_ping_reply - - -def generate_jni_impl(model): - """ - Generates JNI bindings for sending dump and request messages. - :param model: meta-model of VPP API used for jVPP generation. - """ - jni_impl = [] - for msg in model.messages: - if is_control_ping(msg) or is_control_ping_reply(msg): - # Skip control ping managed by jvpp registry. - continue - if not (is_dump(msg) or is_request(msg)): - continue - arguments = "" - request_class = "" - jni_identifiers = "" - msg_initialization = "" - - if msg.has_fields: - arguments = ", jobject request" - request_class = _REQUEST_CLASS_TEMPLATE.substitute( - plugin_name=model.plugin_name, - java_dto_name=msg.java_name_upper - ) - jni_identifiers = generate_j2c_identifiers(msg, class_ref_name="requestClass", object_ref_name="request") - msg_initialization = generate_j2c_swap(msg, struct_ref_name="mp", is_alias=False) - - jni_impl.append(_JNI_IMPL_TEMPLATE.substitute( - c_name=msg.name, - json_filename=model.json_api_files, - json_definition=msg.doc, - plugin_name=model.plugin_name, - plugin_java_name=model.plugin_java_name, - java_method_name=msg.java_name_lower, - arguments=arguments, - request_class=request_class, - jni_identifiers=jni_identifiers, - msg_size=_generate_msg_size(msg), - crc=msg.crc, - msg_initialization=msg_initialization - )) - return "".join(jni_impl) - - -_JNI_IMPL_TEMPLATE = Template(""" -/** - * JNI binding for sending ${c_name} message. - * Generated based on $json_filename: -$json_definition - */ -JNIEXPORT jint JNICALL Java_io_fd_vpp_jvpp_${plugin_name}_JVpp${plugin_java_name}Impl_${java_method_name}0 -(JNIEnv * env, jclass clazz${arguments}) { - ${plugin_name}_main_t *plugin_main = &${plugin_name}_main; - vl_api_${c_name}_t * mp; - u32 my_context_id = vppjni_get_context_id (&jvpp_main); -$request_class -$jni_identifiers - - // create message: - const size_t _size = ${msg_size}; - mp = vl_msg_api_alloc(_size); - memset (mp, 0, _size); - mp->_vl_msg_id = ntohs (get_message_id(env, "${c_name}_${crc}")); - mp->client_index = plugin_main->my_client_index; - mp->context = clib_host_to_net_u32 (my_context_id); - -$msg_initialization - - // send message: - if (CLIB_DEBUG > 1) - clib_warning ("Sending ${c_name} message"); - vl_msg_api_send_shmem (plugin_main->vl_input_queue, (u8 *)&mp); - if ((*env)->ExceptionCheck(env)) { - return JNI_ERR; - } - return my_context_id; -}""") - -# TODO: cache method and field identifiers to achieve better performance -# https://jira.fd.io/browse/HONEYCOMB-42 -_REQUEST_CLASS_TEMPLATE = Template(""" jclass requestClass = (*env)->FindClass(env, "io/fd/vpp/jvpp/${plugin_name}/dto/${java_dto_name}"); -""") - - -def _generate_msg_size(msg): - msg_size = "sizeof(*mp)" - _size_components = [] - for field in msg.fields: - # Ignore ZLAs for simplicity (to support them we need to call JNI functions to check actual size) - if field.array_len_field: - _size_components += " + %s*sizeof(%s)" % (field.array_len_field.java_name, field.type.base_type.vpp_name) - # FIXME(VPP-586): for proper nested structures support, we need generate functions computing type sizes - # and use it instead of sizeof - if field.type.name == "string": - _size_components += " + jstr_length(env, %s) * sizeof(u8)" % field.name - return msg_size + "".join(_size_components) |