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/*
* Copyright (c) 2016 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.
*/
#include <vnet/vnet.h>
#include <vpp/api/vpe_msg_enum.h>
#define vl_typedefs /* define message structures */
#include <vpp/api/vpe_all_api_h.h>
#undef vl_typedefs
#include <vnet/api_errno.h>
#include <vlibapi/api.h>
#include <vlibmemory/api.h>
#include <jni.h>
#include <jvpp-common/jvpp_common.h>
// TODO: generate jvpp_plugin_name.c files (or at least reuse plugin's main structure)
typedef struct {
/* Pointer to shared memory queue */
unix_shared_memory_queue_t * vl_input_queue;
/* VPP api client index */
u32 my_client_index;
/* Callback object and class references enabling asynchronous Java calls */
jobject callbackObject;
jclass callbackClass;
} core_main_t;
core_main_t core_main __attribute__((aligned (64)));
#include "io_fd_vpp_jvpp_core_JVppCoreImpl.h"
#include "jvpp_core_gen.h"
JNIEXPORT void JNICALL Java_io_fd_vpp_jvpp_core_JVppCoreImpl_init0
(JNIEnv * env, jclass clazz, jobject callback, jlong queue_address, jint my_client_index) {
core_main_t * plugin_main = &core_main;
plugin_main->my_client_index = my_client_index;
plugin_main->vl_input_queue = (unix_shared_memory_queue_t *)queue_address;
plugin_main->callbackObject = (*env)->NewGlobalRef(env, callback);
plugin_main->callbackClass = (jclass)(*env)->NewGlobalRef(env, (*env)->GetObjectClass(env, callback));
// verify API has not changed since jar generation
#define _(N) \
get_message_id(env, #N); \
foreach_supported_api_message;
#undef _
#define _(N,n) \
vl_msg_api_set_handlers(get_message_id(env, #N), #n, \
vl_api_##n##_t_handler, \
vl_noop_handler, \
vl_noop_handler, \
vl_noop_handler, \
sizeof(vl_api_##n##_t), 1);
foreach_api_reply_handler;
#undef _
}
JNIEXPORT void JNICALL Java_io_fd_vpp_jvpp_core_JVppCoreImpl_close0
(JNIEnv *env, jclass clazz) {
core_main_t * plugin_main = &core_main;
// cleanup:
(*env)->DeleteGlobalRef(env, plugin_main->callbackClass);
(*env)->DeleteGlobalRef(env, plugin_main->callbackObject);
plugin_main->callbackClass = NULL;
plugin_main->callbackObject = NULL;
}
jint JNI_OnLoad(JavaVM *vm, void *reserved) {
JNIEnv* env;
if ((*vm)->GetEnv(vm, (void**) &env, JNI_VERSION_1_8) != JNI_OK) {
return JNI_EVERSION;
}
if (cache_class_references(env) != 0) {
clib_warning ("Failed to cache class references\n");
return JNI_ERR;
}
return JNI_VERSION_1_8;
}
void JNI_OnUnload(JavaVM *vm, void *reserved) {
JNIEnv* env;
if ((*vm)->GetEnv(vm, (void**) &env, JNI_VERSION_1_8) != JNI_OK) {
return;
}
delete_class_references(env);
}
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