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/*
* Copyright (C) 2017 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.
*/
#ifndef AAPT_IO_BIGBUFFERSTREAM_H
#define AAPT_IO_BIGBUFFERSTREAM_H
#include "io/Io.h"
#include "util/BigBuffer.h"
namespace aapt {
namespace io {
class BigBufferInputStream : public KnownSizeInputStream {
public:
inline explicit BigBufferInputStream(const BigBuffer* buffer)
: buffer_(buffer), iter_(buffer->begin()) {
}
virtual ~BigBufferInputStream() = default;
bool Next(const void** data, size_t* size) override;
void BackUp(size_t count) override;
bool CanRewind() const override;
bool Rewind() override;
size_t ByteCount() const override;
bool HadError() const override;
size_t TotalSize() const override;
private:
DISALLOW_COPY_AND_ASSIGN(BigBufferInputStream);
const BigBuffer* buffer_;
BigBuffer::const_iterator iter_;
size_t offset_ = 0;
size_t bytes_read_ = 0;
};
class BigBufferOutputStream : public OutputStream {
public:
inline explicit BigBufferOutputStream(BigBuffer* buffer) : buffer_(buffer) {
}
virtual ~BigBufferOutputStream() = default;
bool Next(void** data, size_t* size) override;
void BackUp(size_t count) override;
size_t ByteCount() const override;
bool HadError() const override;
private:
DISALLOW_COPY_AND_ASSIGN(BigBufferOutputStream);
BigBuffer* buffer_;
};
} // namespace io
} // namespace aapt
#endif // AAPT_IO_BIGBUFFERSTREAM_H
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