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https://github.com/zerotier/ZeroTierOne.git
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Added JNI code for construction/destruction of ZT1_Node objects
Signed-off-by: Grant Limberg <glimberg@gmail.com>
This commit is contained in:
Grant Limberg
parent
5f314f209e
commit
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298
java/jni/com_zerotierone_sdk_Node.cpp
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298
java/jni/com_zerotierone_sdk_Node.cpp
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/*
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* ZeroTier One - Network Virtualization Everywhere
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* Copyright (C) 2011-2015 ZeroTier, Inc.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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* --
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*
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* ZeroTier may be used and distributed under the terms of the GPLv3, which
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* are available at: http://www.gnu.org/licenses/gpl-3.0.html
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*
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* If you would like to embed ZeroTier into a commercial application or
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* redistribute it in a modified binary form, please contact ZeroTier Networks
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* LLC. Start here: http://www.zerotier.com/
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*/
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#include <jni.h>
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#include <ZeroTierOne.h>
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#include <map>
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#include <assert.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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namespace {
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struct JniRef
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{
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JniRef()
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: env(NULL)
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, node(NULL)
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, dataStoreGetListener(NULL)
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, dataStorePutListener(NULL)
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, packetSender(NULL)
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, frameListener(NULL)
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, configListener(NULL)
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{}
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uint64_t id;
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JNIEnv *env;
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ZT1_Node *node;
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jobject dataStoreGetListener;
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jobject dataStorePutListener;
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jobject packetSender;
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jobject frameListener;
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jobject configListener;
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};
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int VirtualNetworkConfigFunctionCallback(ZT1_Node *node,void *userData,uint64_t,enum ZT1_VirtualNetworkConfigOperation,const ZT1_VirtualNetworkConfig *)
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{
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JniRef *ref = (JniRef*)userData;
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assert(ref->node == node);
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JNIEnv *env = ref->env;
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return 0;
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}
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void VirtualNetworkFrameFunctionCallback(ZT1_Node *node,void *userData,uint64_t,uint64_t,uint64_t,unsigned int,unsigned int,const void *,unsigned int)
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{
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JniRef *ref = (JniRef*)userData;
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assert(ref->node == node);
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JNIEnv *env = ref->env;
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}
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void EventCallback(ZT1_Node *node,void *userData,enum ZT1_Event,const void *)
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{
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JniRef *ref = (JniRef*)userData;
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assert(ref->node == node);
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JNIEnv *env = ref->env;
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}
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long DataStoreGetFunction(ZT1_Node *node,void *userData,const char *,void *,unsigned long,unsigned long,unsigned long *)
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{
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JniRef *ref = (JniRef*)userData;
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assert(ref->node == node);
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JNIEnv *env = ref->env;
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return 0;
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}
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int DataStorePutFunction(ZT1_Node *node,void *userData,const char *,const void *,unsigned long,int)
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{
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JniRef *ref = (JniRef*)userData;
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assert(ref->node == node);
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JNIEnv *env = ref->env;
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return 0;
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}
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int WirePacketSendFunction(ZT1_Node *node,void *userData,const struct sockaddr_storage *,unsigned int,const void *,unsigned int)
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{
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JniRef *ref = (JniRef*)userData;
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assert(ref->node == node);
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JNIEnv *env = ref->env;
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return 0;
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}
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typedef std::map<uint64_t, JniRef*> NodeMap;
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static NodeMap nodeMap;
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jobject createResultObject(JNIEnv *env, ZT1_ResultCode code)
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{
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// cache the class and constructor so we don't have to
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// look them up every time we need to create a java
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// ResultCode object
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static jclass resultClass = NULL;
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static jmethodID constructorId = NULL;
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jobject resultObject = NULL;
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if(resultClass == NULL)
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{
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resultClass = env->FindClass("com/zerotierone/sdk/ResultCode");
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if(resultClass == NULL)
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{
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return NULL; // exception thrown
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}
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}
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if(constructorId = NULL)
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{
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constructorId = env->GetMethodID(resultClass, "<init>", "(I)V");
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if(constructorId == NULL)
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{
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return NULL; // exception thrown
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}
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}
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resultObject = env->NewObject(resultClass, constructorId, (jlong)code);
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return resultObject;
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}
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}
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/*
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* Class: com_zerotierone_sdk_Node
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* Method: node_init
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* Signature: (J)Lcom/zerotierone/sdk/ResultCode;
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*/
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JNIEXPORT jobject JNICALL Java_com_zerotierone_sdk_Node_node_1init
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(JNIEnv *env, jobject obj, jlong now)
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{
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jobject resultObject = createResultObject(env, ZT1_RESULT_OK);
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ZT1_Node *node;
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JniRef *ref = new JniRef;
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ZT1_ResultCode rc = ZT1_Node_new(
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&node,
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ref,
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(uint64_t)now,
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&DataStoreGetFunction,
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&DataStorePutFunction,
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&WirePacketSendFunction,
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&VirtualNetworkFrameFunctionCallback,
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&VirtualNetworkConfigFunctionCallback,
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&EventCallback);
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if(rc != ZT1_RESULT_OK)
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{
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resultObject = createResultObject(env, rc);
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if(node)
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{
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ZT1_Node_delete(node);
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node = NULL;
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}
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delete ref;
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ref = NULL;
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return resultObject;
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}
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ref->id = (uint64_t)now;
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ref->env = env;
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ref->node = node;
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jclass cls = env->GetObjectClass(obj);
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jfieldID fid = env->GetFieldID(
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cls, "getListener", "Lcom.zerotierone.sdk.DataStoreGetListener;");
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if(fid == NULL)
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{
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return NULL; // exception already thrown
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}
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ref->dataStoreGetListener = env->GetObjectField(obj, fid);
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if(ref->dataStoreGetListener == NULL)
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{
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return NULL;
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}
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fid = env->GetFieldID(
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cls, "putListener", "Lcom.zerotierone.sdk.DataStorePutLisetner;");
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if(fid == NULL)
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{
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return NULL; // exception already thrown
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}
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ref->dataStorePutListener = env->GetObjectField(obj, fid);
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if(ref->dataStorePutListener == NULL)
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{
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return NULL;
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}
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fid = env->GetFieldID(
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cls, "sender", "Lcom.zerotierone.sdk.PacketSender;");
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if(fid == NULL)
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{
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return NULL; // exception already thrown
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}
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ref->packetSender = env->GetObjectField(obj, fid);
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if(ref->packetSender == NULL)
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{
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return NULL;
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}
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fid = env->GetFieldID(
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cls, "frameListener", "Lcom.zerotierone.sdk.VirtualNetworkFrameListener;");
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if(fid == NULL)
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{
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return NULL; // exception already thrown
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}
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ref->frameListener = env->GetObjectField(obj, fid);
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if(ref->frameListener = NULL)
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{
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return NULL;
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}
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fid = env->GetFieldID(
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cls, "configListener", "Lcom.zerotierone.sdk.VirtualNetworkConfigListener;");
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if(fid == NULL)
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{
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return NULL; // exception already thrown
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}
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ref->configListener = env->GetObjectField(obj, fid);
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if(ref->configListener == NULL)
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{
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return NULL;
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}
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nodeMap.insert(std::make_pair(ref->id, ref));
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return resultObject;
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}
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/*
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* Class: com_zerotierone_sdk_Node
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* Method: node_delete
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* Signature: (J)V
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*/
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JNIEXPORT void JNICALL Java_com_zerotierone_sdk_Node_node_1delete
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(JNIEnv *env, jobject obj, jlong id)
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{
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uint64_t nodeId = (uint64_t)id;
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NodeMap::iterator found = nodeMap.find(nodeId);
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if(found != nodeMap.end())
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{
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JniRef *ref = found->second;
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nodeMap.erase(found);
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delete ref;
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ref = NULL;
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}
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}
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#ifdef __cplusplus
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} // extern "C"
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#endif
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