jvpp_nsh.c revision 237944f3
1/*
2 * Copyright (c) 2016 Cisco and/or its affiliates.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at:
6 *
7 *     http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15
16#include <vnet/vnet.h>
17
18#include <vpp-api/nsh_msg_enum.h>
19#define vl_typedefs             /* define message structures */
20#include <vpp-api/nsh_all_api_h.h>
21#undef vl_typedefs
22
23#define vl_endianfun
24#include <vpp-api/nsh_all_api_h.h>
25#undef vl_endianfun
26
27#define vl_print(handle, ...)
28#define vl_printfun
29#include <vpp-api/nsh_all_api_h.h>
30#undef vl_printfun
31
32/* Get the API version number */
33#define vl_api_version(n,v) static u32 api_version=(v);
34#include <vpp-api/nsh_all_api_h.h>
35#undef vl_api_version
36
37#include <vnet/api_errno.h>
38#include <vlibapi/api.h>
39#include <vlibmemory/api.h>
40
41#include <jvpp-common/jvpp_common.h>
42
43// FIXME use less fragile path
44#include "../build/java/jvpp/org_openvpp_jvpp_nsh_JVppNshImpl.h"
45#include "jvpp_nsh.h"
46#include "./build/java/jvpp/jvpp_nsh_gen.h"
47
48/*
49 * Class:     org_openvpp_jvpp_nsh_JVppNshImpl
50 * Method:    init0
51 * Signature: (JI)V
52 */
53JNIEXPORT void JNICALL Java_org_openvpp_jvpp_nsh_JVppNshImpl_init0
54  (JNIEnv *env, jclass clazz, jobject callback, jlong queue_address, jint my_client_index) {
55	nsh_main_t * plugin_main = &nsh_main;
56	u8 * name;
57	clib_warning ("Java_org_openvpp_jvpp_nsh_JVppNshImpl_init0");
58
59	plugin_main->my_client_index = my_client_index;
60	plugin_main->vl_input_queue = (unix_shared_memory_queue_t *)queue_address;
61
62    name = format (0, "nsh_%08x%c", api_version, 0);
63    plugin_main->msg_id_base = vl_client_get_first_plugin_msg_id ((char *) name);
64
65	plugin_main->callbackObject = (*env)->NewGlobalRef(env, callback);
66	plugin_main->callbackClass = (jclass)(*env)->NewGlobalRef(env, (*env)->GetObjectClass(env, callback));
67
68    #define _(N,n)                                  \
69        vl_msg_api_set_handlers(VL_API_##N + plugin_main->msg_id_base, #n,     \
70                vl_api_##n##_t_handler,             \
71                vl_noop_handler,                    \
72                vl_api_##n##_t_endian,              \
73                vl_api_##n##_t_print,               \
74                sizeof(vl_api_##n##_t), 1);
75        foreach_api_reply_handler;
76    #undef _
77}
78
79JNIEXPORT void JNICALL Java_org_openvpp_jvpp_nsh_JVppNshImpl_close0
80(JNIEnv *env, jclass clazz) {
81	nsh_main_t * plugin_main = &nsh_main;
82
83    // cleanup:
84    (*env)->DeleteGlobalRef(env, plugin_main->callbackClass);
85    (*env)->DeleteGlobalRef(env, plugin_main->callbackObject);
86
87    plugin_main->callbackClass = NULL;
88    plugin_main->callbackObject = NULL;
89}
90
91jint JNI_OnLoad(JavaVM *vm, void *reserved) {
92    JNIEnv* env;
93
94    if ((*vm)->GetEnv(vm, (void**) &env, JNI_VERSION_1_8) != JNI_OK) {
95        return JNI_EVERSION;
96    }
97
98    if (cache_class_references(env) != 0) {
99        clib_warning ("Failed to cache class references\n");
100        return JNI_ERR;
101    }
102
103    return JNI_VERSION_1_8;
104}
105
106void JNI_OnUnload(JavaVM *vm, void *reserved) {
107    JNIEnv* env;
108    if ((*vm)->GetEnv(vm, (void**) &env, JNI_VERSION_1_8) != JNI_OK) {
109        return;
110    }
111    delete_class_references(env);
112}
113
114
115