94 lines
2.4 KiB
C
94 lines
2.4 KiB
C
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/*
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* Project: HybridCache
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* Created Date: 24-2-21
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* Author: lshb
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*/
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#ifndef HYBRIDCACHE_CONFIG_H_
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#define HYBRIDCACHE_CONFIG_H_
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#include <map>
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#include <string>
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namespace HybridCache {
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struct CacheLibConfig {
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bool EnableNvmCache = false;
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std::string RaidPath;
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uint64_t RaidFileNum;
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size_t RaidFileSize;
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bool DataChecksum = false;
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};
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struct CacheConfig {
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std::string CacheName;
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size_t MaxCacheSize;
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uint32_t PageBodySize;
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uint32_t PageMetaSize;
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bool EnableCAS;
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CacheLibConfig CacheLibCfg;
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};
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struct ReadCacheConfig {
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CacheConfig CacheCfg;
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uint64_t DownloadNormalFlowLimit;
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uint64_t DownloadBurstFlowLimit;
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};
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struct WriteCacheConfig {
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CacheConfig CacheCfg;
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uint32_t CacheSafeRatio; // cache safety concern threshold (percent)
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};
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struct GlobalCacheConfig {
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bool EnableWriteCache;
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std::string EtcdAddress;
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std::vector<std::string> GlobalServers;
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std::string GflagFile;
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};
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struct HybridCacheConfig {
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ReadCacheConfig ReadCacheCfg;
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WriteCacheConfig WriteCacheCfg;
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GlobalCacheConfig GlobalCacheCfg;
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uint32_t ThreadNum;
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uint32_t BackFlushCacheRatio;
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uint64_t UploadNormalFlowLimit;
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uint64_t UploadBurstFlowLimit;
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std::string LogPath;
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uint32_t LogLevel;
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bool EnableLog = true;
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bool UseGlobalCache = false;
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bool FlushToRead = false; // write to read cache after flush
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bool CleanCacheByOpen = false; // clean read cache when open file
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};
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bool GetHybridCacheConfig(const std::string& file, HybridCacheConfig& cfg);
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bool CheckConfig(const HybridCacheConfig& cfg);
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bool ParseFlagFromFile(const std::string& file);
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class Configuration {
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public:
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bool LoadConfig(const std::string& file);
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void PrintConfig();
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/*
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* @brief GetValueFatalIfFail Get the value of the specified config item
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* log it if get error
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*
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* @param[in] key config name
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* @param[out] value config value
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*
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* @return
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*/
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template <class T>
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void GetValueFatalIfFail(const std::string& key, T& value);
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private:
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std::string confFile_;
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std::map<std::string, std::string> config_;
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};
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} // namespace HybridCache
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#endif // HYBRIDCACHE_CONFIG_H_
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