Marek Gradzki | 66ea26b | 2016-07-26 15:28:22 +0200 | [diff] [blame] | 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 | #define _GNU_SOURCE /* for strcasestr(3) */ |
| 16 | #include <vnet/vnet.h> |
| 17 | |
| 18 | #define vl_api_version(n,v) static u32 vpe_api_version = (v); |
Damjan Marion | 7cd468a | 2016-12-19 23:05:39 +0100 | [diff] [blame] | 19 | #include <vpp/api/vpe.api.h> |
Marek Gradzki | 66ea26b | 2016-07-26 15:28:22 +0200 | [diff] [blame] | 20 | #undef vl_api_version |
| 21 | |
Marek Gradzki | 1b5ea88 | 2016-12-21 13:38:39 +0100 | [diff] [blame] | 22 | |
Marek Gradzki | 66ea26b | 2016-07-26 15:28:22 +0200 | [diff] [blame] | 23 | #include <jni.h> |
| 24 | #include <jvpp-common/jvpp_common.h> |
Marek Gradzki | e85581c | 2016-09-28 10:12:04 +0200 | [diff] [blame] | 25 | #include "io_fd_vpp_jvpp_VppJNIConnection.h" |
| 26 | #include "io_fd_vpp_jvpp_JVppRegistryImpl.h" |
Marek Gradzki | 66ea26b | 2016-07-26 15:28:22 +0200 | [diff] [blame] | 27 | |
Damjan Marion | 7cd468a | 2016-12-19 23:05:39 +0100 | [diff] [blame] | 28 | #include <vpp/api/vpe_msg_enum.h> |
Marek Gradzki | 66ea26b | 2016-07-26 15:28:22 +0200 | [diff] [blame] | 29 | #define vl_typedefs /* define message structures */ |
Damjan Marion | 7cd468a | 2016-12-19 23:05:39 +0100 | [diff] [blame] | 30 | #include <vpp/api/vpe_all_api_h.h> |
Marek Gradzki | 66ea26b | 2016-07-26 15:28:22 +0200 | [diff] [blame] | 31 | #undef vl_typedefs |
| 32 | |
| 33 | #define vl_endianfun |
Damjan Marion | 7cd468a | 2016-12-19 23:05:39 +0100 | [diff] [blame] | 34 | #include <vpp/api/vpe_all_api_h.h> |
Marek Gradzki | 66ea26b | 2016-07-26 15:28:22 +0200 | [diff] [blame] | 35 | #undef vl_endianfun |
| 36 | |
| 37 | /* instantiate all the print functions we know about */ |
| 38 | #define vl_print(handle, ...) |
| 39 | #define vl_printfun |
Damjan Marion | 7cd468a | 2016-12-19 23:05:39 +0100 | [diff] [blame] | 40 | #include <vpp/api/vpe_all_api_h.h> |
Marek Gradzki | 66ea26b | 2016-07-26 15:28:22 +0200 | [diff] [blame] | 41 | #undef vl_printfun |
| 42 | |
Marek Gradzki | 1b5ea88 | 2016-12-21 13:38:39 +0100 | [diff] [blame] | 43 | vlib_main_t vlib_global_main; |
| 44 | vlib_main_t **vlib_mains; |
| 45 | |
Marek Gradzki | 66ea26b | 2016-07-26 15:28:22 +0200 | [diff] [blame] | 46 | /* |
| 47 | * The Java runtime isn't compile w/ -fstack-protector, |
| 48 | * so we have to supply missing external references for the |
| 49 | * regular vpp libraries. |
| 50 | */ |
| 51 | void __stack_chk_guard(void) __attribute__((weak)); |
| 52 | void __stack_chk_guard(void) { |
| 53 | } |
| 54 | |
Marek Gradzki | 4746a5d | 2017-01-27 08:57:40 +0100 | [diff] [blame^] | 55 | #define CONTROL_PING_MESSAGE "control_ping" |
| 56 | #define CONTROL_PING_REPLY_MESSAGE "control_ping_reply" |
| 57 | |
Marek Gradzki | 66ea26b | 2016-07-26 15:28:22 +0200 | [diff] [blame] | 58 | typedef struct { |
| 59 | /* UThread attachment */ |
| 60 | volatile u32 control_ping_result_ready; |
| 61 | volatile i32 control_ping_retval; |
| 62 | |
Marek Gradzki | 4746a5d | 2017-01-27 08:57:40 +0100 | [diff] [blame^] | 63 | /* Control ping callback */ |
Marek Gradzki | 66ea26b | 2016-07-26 15:28:22 +0200 | [diff] [blame] | 64 | jobject registryObject; |
| 65 | jclass registryClass; |
| 66 | jclass controlPingReplyClass; |
| 67 | jclass callbackExceptionClass; |
Marek Gradzki | 4746a5d | 2017-01-27 08:57:40 +0100 | [diff] [blame^] | 68 | int control_ping_msg_id; |
| 69 | int control_ping_reply_msg_id; |
Marek Gradzki | 66ea26b | 2016-07-26 15:28:22 +0200 | [diff] [blame] | 70 | |
| 71 | /* Thread cleanup */ |
| 72 | pthread_key_t cleanup_rx_thread_key; |
| 73 | |
| 74 | /* Connected indication */ |
| 75 | volatile u8 is_connected; |
| 76 | } jvpp_registry_main_t; |
| 77 | |
| 78 | jvpp_registry_main_t jvpp_registry_main __attribute__((aligned (64))); |
| 79 | |
| 80 | void vl_client_add_api_signatures(vl_api_memclnt_create_t *mp) { |
| 81 | /* |
| 82 | * Send the main API signature in slot 0. This bit of code must |
| 83 | * match the checks in ../vpe/api/api.c: vl_msg_api_version_check(). |
| 84 | */ |
| 85 | mp->api_versions[0] = clib_host_to_net_u32(vpe_api_version); |
| 86 | } |
| 87 | |
| 88 | /* cleanup handler for RX thread */ |
| 89 | static_always_inline void cleanup_rx_thread(void *arg) { |
| 90 | jvpp_main_t * jm = &jvpp_main; |
| 91 | jvpp_registry_main_t * rm = &jvpp_registry_main; |
| 92 | |
| 93 | vppjni_lock(jm, 99); |
| 94 | |
| 95 | int getEnvStat = (*jm->jvm)->GetEnv(jm->jvm, (void **) &(jm->jenv), |
| 96 | JNI_VERSION_1_8); |
| 97 | if (getEnvStat == JNI_EVERSION) { |
| 98 | clib_warning("Unsupported JNI version\n"); |
| 99 | rm->control_ping_retval = VNET_API_ERROR_UNSUPPORTED_JNI_VERSION; |
| 100 | goto out; |
| 101 | } else if (getEnvStat != JNI_EDETACHED) { |
| 102 | (*jm->jvm)->DetachCurrentThread(jm->jvm); |
| 103 | } |
| 104 | out: vppjni_unlock(jm); |
| 105 | } |
| 106 | |
| 107 | static void vl_api_control_ping_reply_t_handler( |
| 108 | vl_api_control_ping_reply_t * mp) { |
| 109 | jvpp_main_t * jm = &jvpp_main; |
| 110 | jvpp_registry_main_t * rm = &jvpp_registry_main; |
| 111 | char was_thread_connected = 0; |
| 112 | |
| 113 | // attach to java thread if not attached |
| 114 | int getEnvStat = (*jm->jvm)->GetEnv(jm->jvm, (void **) &(jm->jenv), |
| 115 | JNI_VERSION_1_8); |
| 116 | if (getEnvStat == JNI_EDETACHED) { |
| 117 | if ((*jm->jvm)->AttachCurrentThread(jm->jvm, (void **) &(jm->jenv), |
| 118 | NULL) != 0) { |
| 119 | clib_warning("Failed to attach thread\n"); |
| 120 | rm->control_ping_retval = |
| 121 | VNET_API_ERROR_FAILED_TO_ATTACH_TO_JAVA_THREAD; |
| 122 | goto out; |
| 123 | } |
| 124 | |
| 125 | // workaround as we can't use pthread_cleanup_push |
| 126 | pthread_key_create(&rm->cleanup_rx_thread_key, cleanup_rx_thread); |
| 127 | // destructor is only called if the value of key is non null |
| 128 | pthread_setspecific(rm->cleanup_rx_thread_key, (void *) 1); |
| 129 | was_thread_connected = 1; |
| 130 | } else if (getEnvStat == JNI_EVERSION) { |
| 131 | clib_warning("Unsupported JNI version\n"); |
| 132 | rm->control_ping_retval = VNET_API_ERROR_UNSUPPORTED_JNI_VERSION; |
| 133 | goto out; |
| 134 | } |
| 135 | |
| 136 | if (was_thread_connected == 0) { |
| 137 | JNIEnv *env = jm->jenv; |
| 138 | if (mp->retval < 0) { |
| 139 | call_on_error("controlPing", mp->context, mp->retval, |
| 140 | rm->registryClass, rm->registryObject, |
| 141 | rm->callbackExceptionClass); |
| 142 | } else { |
| 143 | jmethodID constructor = (*env)->GetMethodID(env, |
| 144 | rm->controlPingReplyClass, "<init>", "()V"); |
| 145 | jmethodID callbackMethod = (*env)->GetMethodID(env, |
| 146 | rm->registryClass, "onControlPingReply", |
Marek Gradzki | e85581c | 2016-09-28 10:12:04 +0200 | [diff] [blame] | 147 | "(Lio/fd/vpp/jvpp/dto/ControlPingReply;)V"); |
Marek Gradzki | 66ea26b | 2016-07-26 15:28:22 +0200 | [diff] [blame] | 148 | |
| 149 | jobject dto = (*env)->NewObject(env, rm->controlPingReplyClass, |
| 150 | constructor); |
| 151 | |
| 152 | jfieldID contextFieldId = (*env)->GetFieldID(env, |
| 153 | rm->controlPingReplyClass, "context", "I"); |
| 154 | (*env)->SetIntField(env, dto, contextFieldId, |
| 155 | clib_net_to_host_u32(mp->context)); |
| 156 | |
| 157 | jfieldID clientIndexFieldId = (*env)->GetFieldID(env, |
| 158 | rm->controlPingReplyClass, "clientIndex", "I"); |
| 159 | (*env)->SetIntField(env, dto, clientIndexFieldId, |
| 160 | clib_net_to_host_u32(mp->client_index)); |
| 161 | |
| 162 | jfieldID vpePidFieldId = (*env)->GetFieldID(env, |
| 163 | rm->controlPingReplyClass, "vpePid", "I"); |
| 164 | (*env)->SetIntField(env, dto, vpePidFieldId, |
| 165 | clib_net_to_host_u32(mp->vpe_pid)); |
| 166 | |
| 167 | (*env)->CallVoidMethod(env, rm->registryObject, callbackMethod, |
| 168 | dto); |
Maros Marsalek | c0f6cf3 | 2016-11-16 11:29:33 +0100 | [diff] [blame] | 169 | (*env)->DeleteLocalRef(env, dto); |
Marek Gradzki | 66ea26b | 2016-07-26 15:28:22 +0200 | [diff] [blame] | 170 | } |
| 171 | } |
| 172 | |
| 173 | out: rm->control_ping_result_ready = 1; |
| 174 | } |
| 175 | |
Marek Gradzki | 4746a5d | 2017-01-27 08:57:40 +0100 | [diff] [blame^] | 176 | static int find_ping_id() { |
| 177 | int rv = 0; |
| 178 | jvpp_main_t * jm = &jvpp_main; |
| 179 | jvpp_registry_main_t * rm = &jvpp_registry_main; |
| 180 | api_main_t *am = &api_main; |
| 181 | hash_pair_t *hp; |
| 182 | jm->messages_hash = am->msg_index_by_name_and_crc; |
| 183 | |
| 184 | rm->control_ping_msg_id = -1; |
| 185 | rm->control_ping_reply_msg_id = -1; |
| 186 | |
| 187 | hash_foreach_pair (hp, jm->messages_hash, |
| 188 | ({ |
| 189 | char *key = (char *)hp->key; // key format: name_crc |
| 190 | int msg_name_len = strlen(key) - 9; // ignore crc |
| 191 | if (strlen(CONTROL_PING_MESSAGE) == msg_name_len && |
| 192 | strncmp(CONTROL_PING_MESSAGE, (char *)hp->key, msg_name_len) == 0) { |
| 193 | rm->control_ping_msg_id = (u32)hp->value[0]; |
| 194 | } |
| 195 | if (strlen(CONTROL_PING_REPLY_MESSAGE) == msg_name_len && |
| 196 | strncmp(CONTROL_PING_REPLY_MESSAGE, (char *)hp->key, msg_name_len) == 0) { |
| 197 | rm->control_ping_reply_msg_id = (u32)hp->value[0]; |
| 198 | } |
| 199 | })); |
| 200 | if (rm->control_ping_msg_id == -1) { |
| 201 | clib_warning("failed to find id for %s", CONTROL_PING_MESSAGE); |
| 202 | rv = -1; |
| 203 | } |
| 204 | if (rm->control_ping_reply_msg_id == -1) { |
| 205 | clib_warning("failed to find id for %s", CONTROL_PING_REPLY_MESSAGE); |
| 206 | rv = -1; |
| 207 | } |
| 208 | return rv; |
| 209 | } |
| 210 | |
Marek Gradzki | 66ea26b | 2016-07-26 15:28:22 +0200 | [diff] [blame] | 211 | static int send_initial_control_ping() { |
| 212 | f64 timeout; |
| 213 | clib_time_t clib_time; |
| 214 | vl_api_control_ping_t * mp; |
| 215 | jvpp_main_t * jm = &jvpp_main; |
| 216 | jvpp_registry_main_t * rm = &jvpp_registry_main; |
| 217 | |
| 218 | clib_time_init(&clib_time); |
| 219 | |
| 220 | rm->control_ping_result_ready = 0; |
| 221 | mp = vl_msg_api_alloc(sizeof(*mp)); |
| 222 | memset(mp, 0, sizeof(*mp)); |
Marek Gradzki | 4746a5d | 2017-01-27 08:57:40 +0100 | [diff] [blame^] | 223 | mp->_vl_msg_id = ntohs(rm->control_ping_msg_id); |
Marek Gradzki | 66ea26b | 2016-07-26 15:28:22 +0200 | [diff] [blame] | 224 | mp->client_index = jm->my_client_index; |
| 225 | |
| 226 | // send message: |
| 227 | vl_msg_api_send_shmem(jm->vl_input_queue, (u8 *) &mp); |
| 228 | |
| 229 | // wait for results: Current time + 10 seconds is the timeout |
| 230 | timeout = clib_time_now(&clib_time) + 10.0; |
| 231 | int rv = VNET_API_ERROR_RESPONSE_NOT_READY; |
| 232 | while (clib_time_now(&clib_time) < timeout) { |
| 233 | if (rm->control_ping_result_ready == 1) { |
| 234 | rv = rm->control_ping_retval; |
| 235 | break; |
| 236 | } |
| 237 | } |
| 238 | |
| 239 | if (rv != 0) { |
Marek Gradzki | 4746a5d | 2017-01-27 08:57:40 +0100 | [diff] [blame^] | 240 | clib_warning("first control ping failed: %d", rv); |
Marek Gradzki | 66ea26b | 2016-07-26 15:28:22 +0200 | [diff] [blame] | 241 | } |
| 242 | |
| 243 | return rv; |
| 244 | } |
| 245 | |
| 246 | static int connect_to_vpe(char *name) { |
| 247 | jvpp_main_t * jm = &jvpp_main; |
| 248 | api_main_t * am = &api_main; |
Marek Gradzki | 4746a5d | 2017-01-27 08:57:40 +0100 | [diff] [blame^] | 249 | jvpp_registry_main_t * rm = &jvpp_registry_main; |
Marek Gradzki | 66ea26b | 2016-07-26 15:28:22 +0200 | [diff] [blame] | 250 | |
| 251 | if (vl_client_connect_to_vlib("/vpe-api", name, 32) < 0) |
| 252 | return -1; |
| 253 | |
| 254 | jm->my_client_index = am->my_client_index; |
| 255 | |
| 256 | jm->vl_input_queue = am->shmem_hdr->vl_input_queue; |
| 257 | |
Marek Gradzki | 4746a5d | 2017-01-27 08:57:40 +0100 | [diff] [blame^] | 258 | if (find_ping_id() < 0) |
| 259 | return -1; |
| 260 | |
| 261 | vl_msg_api_set_handlers(rm->control_ping_reply_msg_id, CONTROL_PING_REPLY_MESSAGE, |
Marek Gradzki | 66ea26b | 2016-07-26 15:28:22 +0200 | [diff] [blame] | 262 | vl_api_control_ping_reply_t_handler, vl_noop_handler, |
| 263 | vl_api_control_ping_reply_t_endian, |
| 264 | vl_api_control_ping_reply_t_print, |
| 265 | sizeof(vl_api_control_ping_reply_t), 1); |
| 266 | |
Marek Gradzki | 38bcb56 | 2016-12-07 08:37:25 +0100 | [diff] [blame] | 267 | return send_initial_control_ping(); |
Marek Gradzki | 66ea26b | 2016-07-26 15:28:22 +0200 | [diff] [blame] | 268 | } |
| 269 | |
Marek Gradzki | e85581c | 2016-09-28 10:12:04 +0200 | [diff] [blame] | 270 | JNIEXPORT jobject JNICALL Java_io_fd_vpp_jvpp_VppJNIConnection_clientConnect( |
Marek Gradzki | 66ea26b | 2016-07-26 15:28:22 +0200 | [diff] [blame] | 271 | JNIEnv *env, jclass obj, jstring clientName) { |
| 272 | int rv; |
| 273 | const char *client_name; |
| 274 | void vl_msg_reply_handler_hookup(void); |
| 275 | jvpp_main_t * jm = &jvpp_main; |
| 276 | jvpp_registry_main_t * rm = &jvpp_registry_main; |
| 277 | |
| 278 | jclass connectionInfoClass = (*env)->FindClass(env, |
Marek Gradzki | e85581c | 2016-09-28 10:12:04 +0200 | [diff] [blame] | 279 | "io/fd/vpp/jvpp/VppJNIConnection$ConnectionInfo"); |
Marek Gradzki | 66ea26b | 2016-07-26 15:28:22 +0200 | [diff] [blame] | 280 | jmethodID connectionInfoConstructor = (*env)->GetMethodID(env, |
| 281 | connectionInfoClass, "<init>", "(JII)V"); |
| 282 | |
| 283 | /* |
| 284 | * Bail out now if we're not running as root |
| 285 | */ |
| 286 | if (geteuid() != 0) { |
| 287 | return (*env)->NewObject(env, connectionInfoClass, |
| 288 | connectionInfoConstructor, 0, 0, |
| 289 | VNET_API_ERROR_NOT_RUNNING_AS_ROOT); |
| 290 | } |
| 291 | |
| 292 | if (rm->is_connected) { |
| 293 | return (*env)->NewObject(env, connectionInfoClass, |
| 294 | connectionInfoConstructor, 0, 0, |
| 295 | VNET_API_ERROR_ALREADY_CONNECTED); |
| 296 | } |
| 297 | |
| 298 | client_name = (*env)->GetStringUTFChars(env, clientName, 0); |
| 299 | if (!client_name) { |
| 300 | return (*env)->NewObject(env, connectionInfoClass, |
| 301 | connectionInfoConstructor, 0, 0, VNET_API_ERROR_INVALID_VALUE); |
| 302 | } |
| 303 | |
| 304 | rv = connect_to_vpe((char *) client_name); |
| 305 | |
| 306 | if (rv < 0) |
| 307 | clib_warning("connection failed, rv %d", rv); |
| 308 | |
| 309 | (*env)->ReleaseStringUTFChars(env, clientName, client_name); |
| 310 | |
| 311 | return (*env)->NewObject(env, connectionInfoClass, |
| 312 | connectionInfoConstructor, (jlong) jm->vl_input_queue, |
| 313 | (jint) jm->my_client_index, (jint) rv); |
| 314 | } |
| 315 | |
Marek Gradzki | e85581c | 2016-09-28 10:12:04 +0200 | [diff] [blame] | 316 | JNIEXPORT jint JNICALL Java_io_fd_vpp_jvpp_JVppRegistryImpl_controlPing0( |
Marek Gradzki | 66ea26b | 2016-07-26 15:28:22 +0200 | [diff] [blame] | 317 | JNIEnv *env, jobject regstryObject) { |
| 318 | jvpp_main_t * jm = &jvpp_main; |
| 319 | vl_api_control_ping_t * mp; |
| 320 | u32 my_context_id = vppjni_get_context_id(&jvpp_main); |
| 321 | jvpp_registry_main_t * rm = &jvpp_registry_main; |
| 322 | |
| 323 | if (rm->registryObject == 0) { |
| 324 | rm->registryObject = (*env)->NewGlobalRef(env, regstryObject); |
| 325 | } |
| 326 | if (rm->registryClass == 0) { |
| 327 | rm->registryClass = (jclass) (*env)->NewGlobalRef(env, |
| 328 | (*env)->GetObjectClass(env, regstryObject)); |
| 329 | } |
| 330 | |
| 331 | mp = vl_msg_api_alloc(sizeof(*mp)); |
| 332 | memset(mp, 0, sizeof(*mp)); |
Marek Gradzki | 4746a5d | 2017-01-27 08:57:40 +0100 | [diff] [blame^] | 333 | mp->_vl_msg_id = ntohs(rm->control_ping_msg_id); |
Marek Gradzki | 66ea26b | 2016-07-26 15:28:22 +0200 | [diff] [blame] | 334 | mp->client_index = jm->my_client_index; |
| 335 | mp->context = clib_host_to_net_u32(my_context_id); |
| 336 | |
| 337 | // send message: |
| 338 | vl_msg_api_send_shmem(jm->vl_input_queue, (u8 *) &mp); |
| 339 | return my_context_id; |
| 340 | } |
| 341 | |
Marek Gradzki | e85581c | 2016-09-28 10:12:04 +0200 | [diff] [blame] | 342 | JNIEXPORT void JNICALL Java_io_fd_vpp_jvpp_VppJNIConnection_clientDisconnect( |
Marek Gradzki | 66ea26b | 2016-07-26 15:28:22 +0200 | [diff] [blame] | 343 | JNIEnv *env, jclass clazz) { |
| 344 | jvpp_registry_main_t * rm = &jvpp_registry_main; |
| 345 | rm->is_connected = 0; // TODO make thread safe |
| 346 | vl_client_disconnect_from_vlib(); |
| 347 | |
| 348 | // cleanup: |
| 349 | if (rm->registryObject) { |
| 350 | (*env)->DeleteGlobalRef(env, rm->registryObject); |
| 351 | rm->registryObject = 0; |
| 352 | } |
| 353 | if (rm->registryClass) { |
| 354 | (*env)->DeleteGlobalRef(env, rm->registryClass); |
| 355 | rm->registryClass = 0; |
| 356 | } |
| 357 | } |
| 358 | |
| 359 | jint JNI_OnLoad(JavaVM *vm, void *reserved) { |
| 360 | jvpp_main_t * jm = &jvpp_main; |
| 361 | jvpp_registry_main_t * rm = &jvpp_registry_main; |
| 362 | JNIEnv* env; |
| 363 | |
| 364 | if ((*vm)->GetEnv(vm, (void**) &env, JNI_VERSION_1_8) != JNI_OK) { |
| 365 | return JNI_EVERSION; |
| 366 | } |
| 367 | |
| 368 | rm->controlPingReplyClass = (jclass) (*env)->NewGlobalRef(env, |
Marek Gradzki | e85581c | 2016-09-28 10:12:04 +0200 | [diff] [blame] | 369 | (*env)->FindClass(env, "io/fd/vpp/jvpp/dto/ControlPingReply")); |
Marek Gradzki | 66ea26b | 2016-07-26 15:28:22 +0200 | [diff] [blame] | 370 | if ((*env)->ExceptionCheck(env)) { |
| 371 | (*env)->ExceptionDescribe(env); |
| 372 | clib_warning("Failed to cache class references\n"); |
| 373 | return JNI_ERR; |
| 374 | } |
| 375 | |
| 376 | rm->callbackExceptionClass = (jclass) (*env)->NewGlobalRef(env, |
Marek Gradzki | e85581c | 2016-09-28 10:12:04 +0200 | [diff] [blame] | 377 | (*env)->FindClass(env, "io/fd/vpp/jvpp/VppCallbackException")); |
Marek Gradzki | 66ea26b | 2016-07-26 15:28:22 +0200 | [diff] [blame] | 378 | if ((*env)->ExceptionCheck(env)) { |
| 379 | (*env)->ExceptionDescribe(env); |
| 380 | return JNI_ERR; |
| 381 | } |
| 382 | |
| 383 | jm->jvm = vm; |
| 384 | return JNI_VERSION_1_8; |
| 385 | } |
| 386 | |
| 387 | void JNI_OnUnload(JavaVM *vm, void *reserved) { |
| 388 | jvpp_main_t * jm = &jvpp_main; |
| 389 | JNIEnv* env; |
| 390 | if ((*vm)->GetEnv(vm, (void**) &env, JNI_VERSION_1_8) != JNI_OK) { |
| 391 | return; |
| 392 | } |
| 393 | |
| 394 | jm->jenv = NULL; |
| 395 | jm->jvm = NULL; |
| 396 | } |