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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#pragma once
#include <vespa/vespalib/stllike/string.h>
#include <vespa/vespalib/util/compressionconfig.h>
#include <vespa/vespalib/util/memory.h>
#include <vector>
#include <atomic>
class FNET_DataBuffer;
namespace search::fs4transport {
using vespalib::string;
class FS4PersistentPacketStreamer {
using CompressionConfig = vespalib::compression::CompressionConfig;
std::atomic<unsigned int> _compressionLimit;
std::atomic<unsigned int> _compressionLevel;
std::atomic<CompressionConfig::Type> _compressionType;
public:
static FS4PersistentPacketStreamer Instance;
FS4PersistentPacketStreamer();
void SetCompressionLimit(unsigned int limit) { _compressionLimit.store(limit, std::memory_order_relaxed); }
void SetCompressionLevel(unsigned int level) { _compressionLevel.store(level, std::memory_order_relaxed); }
void SetCompressionType(CompressionConfig::Type compressionType) { _compressionType.store(compressionType, std::memory_order_relaxed); }
CompressionConfig::Type getCompressionType() const { return _compressionType.load(std::memory_order_relaxed); }
uint32_t getCompressionLimit() const { return _compressionLimit.load(std::memory_order_relaxed); }
uint32_t getCompressionLevel() const { return _compressionLevel.load(std::memory_order_relaxed); }
};
//==========================================================================
class FS4Properties
{
private:
using StringRef = std::pair<uint32_t, uint32_t>;
using Entry = std::pair<StringRef, StringRef>;
using KeyValueVector = std::vector<Entry>;
KeyValueVector _entries;
vespalib::string _name;
vespalib::string _backing;
const char * c_str(size_t sz) const { return _backing.c_str() + sz; }
void set(StringRef & e, vespalib::stringref s);
void allocEntries(uint32_t cnt);
public:
FS4Properties(FS4Properties &&) noexcept;
FS4Properties &operator=(FS4Properties &&) noexcept;
FS4Properties(const FS4Properties &) = delete;
FS4Properties &operator=(const FS4Properties &) = delete;
FS4Properties();
~FS4Properties();
void setName(const char *name, uint32_t nameSize) { _name.assign(name, nameSize); }
void setName(vespalib::stringref val) {
setName(val.data(), val.size());
}
void setKey(uint32_t entry, const char *key, uint32_t keySize);
void setKey(uint32_t entry, vespalib::stringref val) {
setKey(entry, val.data(), val.size());
}
void setValue(uint32_t entry, const char *value, uint32_t valueSize);
void setValue(uint32_t entry, vespalib::stringref val) {
setValue(entry, val.data(), val.size());
}
uint32_t size() const noexcept { return _entries.size(); }
const vespalib::string & name() const noexcept { return _name; }
vespalib::stringref key(uint32_t entry) const noexcept;
vespalib::stringref value(uint32_t entry) const noexcept;
// sub-packet methods below
uint32_t getLength() const noexcept;
void encode(FNET_DataBuffer &dst);
bool decode(FNET_DataBuffer &src, uint32_t &len);
vespalib::string toString(uint32_t indent = 0) const;
};
}
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