/** * Copyright 2011 JogAmp Community. All rights reserved. * * Redistribution and use in source and binary forms, with or without modification, are * permitted provided that the following conditions are met: * * 1. Redistributions of source code must retain the above copyright notice, this list of * conditions and the following disclaimer. * * 2. Redistributions in binary form must reproduce the above copyright notice, this list * of conditions and the following disclaimer in the documentation and/or other materials * provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY JogAmp Community ``AS IS'' AND ANY EXPRESS OR IMPLIED * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL JogAmp Community OR * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * The views and conclusions contained in the software and documentation are those of the * authors and should not be interpreted as representing official policies, either expressed * or implied, of JogAmp Community. */ #ifndef NEWT_COMMON_H #define NEWT_COMMON_H 1 #include <jni.h> #include <stdlib.h> void NewtCommon_init(JNIEnv *env); const char * NewtCommon_GetStaticStringMethod(JNIEnv *jniEnv, jclass clazz, jmethodID jGetStrID, char *dest, int destSize, const char *altText); jchar* NewtCommon_GetNullTerminatedStringChars(JNIEnv* env, jstring str); void NewtCommon_FatalError(JNIEnv *env, const char* msg, ...); void NewtCommon_throwNewRuntimeException(JNIEnv *env, const char* msg, ...); /** * * 1) Store jvmHandle and jvmVersion JavaVM *jvmHandle = NULL; int jvmVersion = 0; if(0 != (*env)->GetJavaVM(env, &jvmHandle)) { jvmHandle = NULL; } else { jvmVersion = (*env)->GetVersion(env); } * * 2) Use current thread JNIEnv or attach current thread to JVM, generating new JNIEnv * int shallBeDetached = 0; JNIEnv* env = NewtCommon_GetJNIEnv(jvmHandle, jvmVersion, &shallBeDetached); if(NULL==env) { DBG_PRINT("drawRect: null JNIEnv\n"); return; } * * 3) Use JNIEnv .. * .. your JNIEnv code here .. * * 4) Detach thread from JVM, if required * if (shallBeDetached) { (*jvmHandle)->DetachCurrentThread(jvmHandle); } */ JNIEnv* NewtCommon_GetJNIEnv (JavaVM * jvmHandle, int jvmVersion, int * shallBeDetached); #endif