void init_vars(JNIEnv *env, const char *td_api_java_package) {
BooleanClass = get_jclass(env, "java/lang/Boolean");
IntegerClass = get_jclass(env, "java/lang/Integer");
LongClass = get_jclass(env, "java/lang/Long");
DoubleClass = get_jclass(env, "java/lang/Double");
StringClass = get_jclass(env, "java/lang/String");
ObjectClass = get_jclass(env, (PSLICE() << td_api_java_package << "/TdApi$Object").c_str());
ArrayKeyboardButtonClass =
get_jclass(env, (PSLICE() << "[L" << td_api_java_package << "/TdApi$KeyboardButton;").c_str());
ArrayInlineKeyboardButtonClass =
get_jclass(env, (PSLICE() << "[L" << td_api_java_package << "/TdApi$InlineKeyboardButton;").c_str());
GetConstructorID = get_method_id(env, ObjectClass, "getConstructor", "()I");
BooleanGetValueMethodID = get_method_id(env, BooleanClass, "booleanValue", "()Z");
IntegerGetValueMethodID = get_method_id(env, IntegerClass, "intValue", "()I");
LongGetValueMethodID = get_method_id(env, LongClass, "longValue", "()J");
DoubleGetValueMethodID = get_method_id(env, DoubleClass, "doubleValue", "()D");
}
JNIEXPORT void JNICALL
Java_gnu_java_nio_VMChannel_initIDs (JNIEnv *env,
jclass clazz __attribute__ ((__unused__)))
{
jclass bufferClass = JCL_FindClass(env, "java/nio/Buffer");
jclass byteBufferClass = JCL_FindClass(env, "java/nio/ByteBuffer");
address_fid = (*env)->GetFieldID(env, bufferClass, "address",
"Lgnu/classpath/Pointer;");
if (address_fid == NULL)
{
JCL_ThrowException(env, "java/lang/InternalError",
"Unable to find internal field");
return;
}
get_position_mid = get_method_id(env, bufferClass, "position", "()I");
set_position_mid = get_method_id(env, bufferClass, "position",
"(I)Ljava/nio/Buffer;");
get_limit_mid = get_method_id(env, bufferClass, "limit", "()I");
set_limit_mid = get_method_id(env, bufferClass, "limit",
"(I)Ljava/nio/Buffer;");
has_array_mid = get_method_id(env, byteBufferClass, "hasArray", "()Z");
array_mid = get_method_id(env, byteBufferClass, "array", "()[B");
array_offset_mid = get_method_id(env, byteBufferClass, "arrayOffset", "()I");
}
bool jexcheck(JNIEnv *env)
{
jhthrowable jex(env->ExceptionOccurred());
if (!jex)
return true;
jmethodID mid = get_method_id(env, jex, "getMessage", "()Ljava/lang/String;");
scope_c_ptr_t<const char> s(jcast<const char *>((jstring)env->CallObjectMethod(jex.get(), mid)));
ERR("java exception: %s", s.get());
env->ExceptionDescribe();
env->ExceptionClear();
errno = EFAULT;
return false;
}
jmethodID get_method_id(jholder<T> const &obj, const char *name, const char *signature)
{
return get_method_id(jnienv(), obj, name, signature);
}
jmethodID get_method_id(JNIEnv *env, jholder<T> const &obj, const char *name, const char *signature)
{
return get_method_id(env, get_class(obj), name, signature);
}
inline
jmethodID get_method_id(jhclass const &cls, const char *name, const char *signature)
{
return get_method_id(jnienv(), cls, name, signature);
}
