1 /*
2  * Licensed to the Apache Software Foundation (ASF) under one or more
3  * contributor license agreements.  See the NOTICE file distributed with
4  * this work for additional information regarding copyright ownership.
5  * The ASF licenses this file to You under the Apache License, Version 2.0
6  * (the "License"); you may not use this file except in compliance with
7  * the License.  You may obtain a copy of the License at
8  *
9  *     http://www.apache.org/licenses/LICENSE-2.0
10  *
11  * Unless required by applicable law or agreed to in writing, software
12  * distributed under the License is distributed on an "AS IS" BASIS,
13  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14  * See the License for the specific language governing permissions and
15  * limitations under the License.
16  */
17 
18 #ifndef ZIP_UTILITIES_H_included
19 #define ZIP_UTILITIES_H_included
20 
21 #include <cstdint>
22 #include <memory>
23 #include "jni.h"
24 #include "zlib.h"
25 
26 class NativeZipStream {
27 public:
28     std::unique_ptr<jbyte[]> input;
29     int inCap;
30     z_stream stream;
31     uint64_t totalIn;
32     uint64_t totalOut;
33 
34     NativeZipStream();
35     ~NativeZipStream();
36     void setDictionary(JNIEnv* env, jbyteArray javaDictionary, int off, int len, bool inflate);
37     void setInput(JNIEnv* env, jbyteArray buf, jint off, jint len);
38 
39 private:
40     std::unique_ptr<jbyte[]> mDict;
41 
42     // Disallow copy and assignment.
43     NativeZipStream(const NativeZipStream&);
44     void operator=(const NativeZipStream&);
45 };
46 
47 NativeZipStream* toNativeZipStream(jlong address);
48 
49 void throwExceptionForZlibError(JNIEnv* env, const char* exceptionClassName, int error,
50         NativeZipStream* stream);
51 
52 #endif  // ZIP_UTILITIES_H_included
53