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tdlib-fork/tdutils/td/utils/GzipByteFlow.h

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//
// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2020
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#pragma once
#include "td/utils/ByteFlow.h"
#include "td/utils/Gzip.h"
#include <limits>
namespace td {
#if TD_HAVE_ZLIB
class GzipByteFlow final : public ByteFlowBase {
public:
GzipByteFlow() = default;
explicit GzipByteFlow(Gzip::Mode mode) {
gzip_.init(mode).ensure();
}
void init_decode() {
gzip_.init_decode().ensure();
}
void init_encode() {
gzip_.init_encode().ensure();
}
void set_max_output_size(size_t max_output_size) {
max_output_size_ = max_output_size;
}
void loop() override;
private:
Gzip gzip_;
size_t uncommited_size_ = 0;
size_t total_output_size_ = 0;
size_t max_output_size_ = std::numeric_limits<size_t>::max();
static constexpr size_t MIN_UPDATE_SIZE = 1 << 14;
};
#endif
} // namespace td