Telegram-Android/TMessagesProj/jni/exoplayer/include/data_source.h

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/*
* Copyright (C) 2016 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
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#ifndef INCLUDE_DATA_SOURCE_H_
#define INCLUDE_DATA_SOURCE_H_
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#include <jni.h>
#include <sys/types.h>
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class DataSource {
public:
virtual ~DataSource() {}
// Returns the number of bytes read, or -1 on failure. It's not an error if
// this returns zero; it just means the given offset is equal to, or
// beyond, the end of the source.
virtual ssize_t readAt(off64_t offset, void* const data, size_t size) = 0;
};
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#endif // INCLUDE_DATA_SOURCE_H_