mirror of https://github.com/axmolengine/axmol.git
Clean up JNIHelper
This commit is contained in:
folecr
parent
dc6b6ecc69
commit
669427363f
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@ -24,193 +24,171 @@ THE SOFTWARE.
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#include "JniHelper.h"
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#include <android/log.h>
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#include <string.h>
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#include <pthread.h>
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#if 1
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#define LOG_TAG "JniHelper"
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#define LOGD(...) __android_log_print(ANDROID_LOG_DEBUG,LOG_TAG,__VA_ARGS__)
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#else
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#define LOGD(...)
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#endif
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#define JAVAVM cocos2d::JniHelper::getJavaVM()
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using namespace std;
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extern "C"
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{
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//////////////////////////////////////////////////////////////////////////
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// java vm helper function
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//////////////////////////////////////////////////////////////////////////
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static bool getEnv(JNIEnv **env)
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{
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bool bRet = false;
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do
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{
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if (JAVAVM->GetEnv((void**)env, JNI_VERSION_1_4) != JNI_OK)
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{
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LOGD("Failed to get the environment using GetEnv()");
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break;
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static JNIEnv* _getJNIEnv(void) {
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JavaVM* jvm = cocos2d::JniHelper::getJavaVM();
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if (NULL == jvm) {
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LOGD("Failed to get JNIEnv. JniHelper::getJavaVM() is NULL");
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return NULL;
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}
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JNIEnv *env = NULL;
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// get jni environment
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jint ret = jvm->GetEnv((void**)&env, JNI_VERSION_1_4);
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switch (ret) {
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case JNI_OK :
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// Success!
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return env;
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case JNI_EDETACHED :
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// Thread not attached
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// TODO : If calling AttachCurrentThread() on a native thread
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// must call DetachCurrentThread() in future.
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// see: http://developer.android.com/guide/practices/design/jni.html
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if (jvm->AttachCurrentThread(&env, NULL) < 0)
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{
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LOGD("Failed to get the environment using AttachCurrentThread()");
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return NULL;
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} else {
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// Success : Attached and obtained JNIEnv!
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return env;
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}
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if (JAVAVM->AttachCurrentThread(env, 0) < 0)
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{
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LOGD("Failed to get the environment using AttachCurrentThread()");
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break;
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}
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bRet = true;
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} while (0);
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return bRet;
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case JNI_EVERSION :
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// Cannot recover from this error
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LOGD("JNI interface version 1.4 not supported");
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default :
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LOGD("Failed to get the environment using GetEnv()");
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return NULL;
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}
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}
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static jclass getClassID_(const char *className, JNIEnv *env)
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{
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JNIEnv *pEnv = env;
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jclass ret = 0;
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do
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{
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if (! pEnv)
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{
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if (! getEnv(&pEnv))
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{
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break;
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}
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}
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ret = pEnv->FindClass(className);
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if (! ret)
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{
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LOGD("Failed to find class of %s", className);
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break;
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}
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} while (0);
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jclass _getClassID(const char *className, JNIEnv *env) {
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if (NULL == className) {
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return NULL;
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}
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jclass ret = env->FindClass(className);
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if (!ret) {
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LOGD("Failed to find class of %s", className);
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}
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return ret;
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}
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static bool getStaticMethodInfo_(cocos2d::JniMethodInfo &methodinfo, const char *className, const char *methodName, const char *paramCode)
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{
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jmethodID methodID = 0;
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JNIEnv *pEnv = 0;
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bool bRet = false;
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do
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{
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if (! getEnv(&pEnv))
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{
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break;
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}
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}
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jclass classID = getClassID_(className, pEnv);
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namespace cocos2d {
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methodID = pEnv->GetStaticMethodID(classID, methodName, paramCode);
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if (! methodID)
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{
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LOGD("Failed to find static method id of %s", methodName);
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break;
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}
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JavaVM* JniHelper::_psJavaVM = NULL;
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methodinfo.classID = classID;
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methodinfo.env = pEnv;
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methodinfo.methodID = methodID;
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bRet = true;
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} while (0);
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return bRet;
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JavaVM* JniHelper::getJavaVM() {
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pthread_t thisthread = pthread_self();
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LOGD("JniHelper::getJavaVM(), pthread_self() = %X", thisthread);
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return _psJavaVM;
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}
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static bool getMethodInfo_(cocos2d::JniMethodInfo &methodinfo, const char *className, const char *methodName, const char *paramCode)
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{
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jmethodID methodID = 0;
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JNIEnv *pEnv = 0;
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bool bRet = false;
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do
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{
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if (! getEnv(&pEnv))
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{
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break;
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}
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jclass classID = getClassID_(className, pEnv);
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methodID = pEnv->GetMethodID(classID, methodName, paramCode);
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if (! methodID)
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{
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LOGD("Failed to find method id of %s", methodName);
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break;
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}
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methodinfo.classID = classID;
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methodinfo.env = pEnv;
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methodinfo.methodID = methodID;
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bRet = true;
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} while (0);
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return bRet;
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void JniHelper::setJavaVM(JavaVM *javaVM) {
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pthread_t thisthread = pthread_self();
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LOGD("JniHelper::setJavaVM(%p), pthread_self() = %X", javaVM, thisthread);
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_psJavaVM = javaVM;
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}
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static string jstring2string_(jstring jstr)
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{
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if (jstr == NULL)
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{
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bool JniHelper::getStaticMethodInfo(JniMethodInfo &methodinfo,
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const char *className,
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const char *methodName,
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const char *paramCode) {
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if ((NULL == className) ||
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(NULL == methodName) ||
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(NULL == paramCode)) {
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return false;
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}
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JNIEnv *pEnv = _getJNIEnv();
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if (!pEnv) {
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LOGD("Failed to get JNIEnv");
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return false;
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}
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jclass classID = _getClassID(className, pEnv);
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if (! classID) {
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LOGD("Failed to find class %s", className);
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return false;
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}
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jmethodID methodID = pEnv->GetStaticMethodID(classID, methodName, paramCode);
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if (! methodID) {
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LOGD("Failed to find static method id of %s", methodName);
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return false;
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}
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methodinfo.classID = classID;
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methodinfo.env = pEnv;
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methodinfo.methodID = methodID;
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return true;
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}
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bool JniHelper::getMethodInfo(JniMethodInfo &methodinfo,
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const char *className,
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const char *methodName,
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const char *paramCode) {
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if ((NULL == className) ||
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(NULL == methodName) ||
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(NULL == paramCode)) {
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return false;
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}
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JNIEnv *pEnv = _getJNIEnv();
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if (!pEnv) {
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return false;
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}
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jclass classID = _getClassID(className, pEnv);
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if (! classID) {
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LOGD("Failed to find class %s", className);
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return false;
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}
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jmethodID methodID = pEnv->GetMethodID(classID, methodName, paramCode);
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if (! methodID) {
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LOGD("Failed to find method id of %s", methodName);
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return false;
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}
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methodinfo.classID = classID;
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methodinfo.env = pEnv;
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methodinfo.methodID = methodID;
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return true;
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}
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std::string JniHelper::jstring2string(jstring jstr) {
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if (jstr == NULL) {
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return "";
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}
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JNIEnv *env = 0;
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if (! getEnv(&env))
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{
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return 0;
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JNIEnv *env = _getJNIEnv();
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if (!env) {
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return NULL;
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}
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const char* chars = env->GetStringUTFChars(jstr, NULL);
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string ret(chars);
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std::string ret(chars);
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env->ReleaseStringUTFChars(jstr, chars);
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return ret;
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}
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}
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NS_CC_BEGIN
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JavaVM* JniHelper::_psJavaVM = NULL;
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JavaVM* JniHelper::getJavaVM()
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{
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return _psJavaVM;
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}
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void JniHelper::setJavaVM(JavaVM *javaVM)
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{
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_psJavaVM = javaVM;
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}
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jclass JniHelper::getClassID(const char *className, JNIEnv *env)
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{
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return getClassID_(className, env);
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}
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bool JniHelper::getStaticMethodInfo(JniMethodInfo &methodinfo, const char *className, const char *methodName, const char *paramCode)
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{
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return getStaticMethodInfo_(methodinfo, className, methodName, paramCode);
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}
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bool JniHelper::getMethodInfo(JniMethodInfo &methodinfo, const char *className, const char *methodName, const char *paramCode)
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{
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return getMethodInfo_(methodinfo, className, methodName, paramCode);
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}
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string JniHelper::jstring2string(jstring str)
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{
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return jstring2string_(str);
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}
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NS_CC_END
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} //namespace cocos2d
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@ -42,7 +42,6 @@ class CC_DLL JniHelper
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public:
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static JavaVM* getJavaVM();
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static void setJavaVM(JavaVM *javaVM);
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static jclass getClassID(const char *className, JNIEnv *env=0);
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static bool getStaticMethodInfo(JniMethodInfo &methodinfo, const char *className, const char *methodName, const char *paramCode);
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static bool getMethodInfo(JniMethodInfo &methodinfo, const char *className, const char *methodName, const char *paramCode);
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static std::string jstring2string(jstring str);
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