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author | 2016-07-26 15:28:22 +0200 | |
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committer | 2016-08-16 21:26:19 +0000 | |
commit | 66ea26b1bc7bbc8d54a3498dbd3d0919c4712fa8 (patch) | |
tree | 16c46e75723099ad859128af6069055e68897300 /vpp-api/java/jvpp-core/jvpp_core.c | |
parent | f4691cd7befd4cf31a63adffc204d71b1f1548e1 (diff) |
VPP-205: jvpp plugin support.
Splits jvpp into two jars
jvpp-registry.jar - base jvpp functionality
jvpp-core.jar - Java wrapper for vpe.api
Plugins can be generated the same way jvpp-core.jar is.
Example (nsh):
https://gerrit.fd.io/r/#/c/2118/
Change-Id: I2254f90b2c3e423563bb91bf70877979f1e90a7d
Signed-off-by: Marek Gradzki <mgradzki@cisco.com>
Diffstat (limited to 'vpp-api/java/jvpp-core/jvpp_core.c')
-rw-r--r-- | vpp-api/java/jvpp-core/jvpp_core.c | 117 |
1 files changed, 117 insertions, 0 deletions
diff --git a/vpp-api/java/jvpp-core/jvpp_core.c b/vpp-api/java/jvpp-core/jvpp_core.c new file mode 100644 index 00000000000..cc1f9b55a95 --- /dev/null +++ b/vpp-api/java/jvpp-core/jvpp_core.c @@ -0,0 +1,117 @@ +/* + * 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 + +#define vl_endianfun +#include <vpp-api/vpe_all_api_h.h> +#undef vl_endianfun + +#define vl_print(handle, ...) +#define vl_printfun +#include <vpp-api/vpe_all_api_h.h> +#undef vl_printfun + +#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 { + /* Base message index for the nsh plugin */ + u16 msg_id_base; + + /* 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 "org_openvpp_jvpp_core_JVppCoreImpl.h" +#include "jvpp_core_gen.h" + +JNIEXPORT void JNICALL Java_org_openvpp_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)); + + #define _(N,n) \ + vl_msg_api_set_handlers(VL_API_##N, #n, \ + vl_api_##n##_t_handler, \ + vl_noop_handler, \ + vl_api_##n##_t_endian, \ + vl_api_##n##_t_print, \ + sizeof(vl_api_##n##_t), 1); + foreach_api_reply_handler; + #undef _ +} + +JNIEXPORT void JNICALL Java_org_openvpp_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); +} + + + |