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added a JniCache objectet for caching jclass, jmethodID, and jfieldID objects

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Grant Limberg
2015-05-02 11:20:21 -07:00
parent 9f2732d661
commit 079d248eab
6 changed files with 331 additions and 3 deletions
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65
java/jni/ZT1_jnicache.h Normal file
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/*
* ZeroTier One - Network Virtualization Everywhere
* Copyright (C) 2011-2015 ZeroTier, Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* --
*
* ZeroTier may be used and distributed under the terms of the GPLv3, which
* are available at: http://www.gnu.org/licenses/gpl-3.0.html
*
* If you would like to embed ZeroTier into a commercial application or
* redistribute it in a modified binary form, please contact ZeroTier Networks
* LLC. Start here: http://www.zerotier.com/
*/
#ifndef ZT1_JNICACHE_H_
#define ZT1_JNICACHE_H_
#include <jni.h>
#include <map>
#include <string>
class JniCache {
public:
JniCache();
JniCache(JavaVM *jvm);
~JniCache();
void setJavaVM(JavaVM *jvm);
void clearCache();
jclass findClass(const std::string &name);
jmethodID findMethod(jclass cls, const std::string &methodName, const std::string &methodSig);
jmethodID findStaticMethod(jclass cls, const std::string &methodName, const std::string &methodSig);
jfieldID findField(jclass cls, const std::string &fieldName, const std::string &typeStr);
jfieldID findStaticField(jclass cls, const std::string &fieldName, const std::string &typeStr);
private:
typedef std::map<std::string, jmethodID> MethodMap;
typedef std::map<std::string, jfieldID> FieldMap;
typedef std::map<std::string, jclass> ClassMap;
JavaVM *m_jvm;
ClassMap m_classes;
FieldMap m_fields;
FieldMap m_staticFields;
MethodMap m_methods;
MethodMap m_staticMethods;
};
#endif