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38 lines
1.3 KiB
38 lines
1.3 KiB
/**
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* This is the C++ adaptation and derivative work of Myia (https://github.com/mila-iqia/myia/).
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*
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* Copyright 2020 Huawei Technologies Co., Ltd
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "common/jni_utils.h"
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#include <cstring>
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char *JstringToChar(JNIEnv *env, jstring jstr) {
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char *rtn = NULL;
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jclass clsstring = env->FindClass("java/lang/String");
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jstring strencode = env->NewStringUTF("GB2312");
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jmethodID mid = env->GetMethodID(clsstring, "getBytes", "(Ljava/lang/String;)[B");
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jbyteArray barr = (jbyteArray)env->CallObjectMethod(jstr, mid, strencode);
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jsize alen = env->GetArrayLength(barr);
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jbyte *ba = env->GetByteArrayElements(barr, JNI_FALSE);
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if (alen > 0) {
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rtn = new char[alen + 1];
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memcpy(rtn, ba, alen);
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rtn[alen] = 0;
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}
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env->ReleaseByteArrayElements(barr, ba, 0);
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return rtn;
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}
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