Class AbstractMetadataBackend
Defined in File metadata_backend.hpp
Inheritance Relationships
Derived Types
public gkfs::metadata::MetadataBackend< ParallaxBackend >
(Template Class MetadataBackend)public gkfs::metadata::MetadataBackend< RocksDBBackend >
(Template Class MetadataBackend)public gkfs::metadata::MetadataBackend< T >
(Template Class MetadataBackend)
Class Documentation
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class gkfs::metadata::AbstractMetadataBackend
Subclassed by gkfs::metadata::MetadataBackend< ParallaxBackend >, gkfs::metadata::MetadataBackend< RocksDBBackend >, gkfs::metadata::MetadataBackend< T >
Public Functions
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virtual ~AbstractMetadataBackend() = default
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virtual std::string get(const std::string &key) const = 0
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virtual void put(const std::string &key, const std::string &val) = 0
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virtual void put_no_exist(const std::string &key, const std::string &val) = 0
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virtual void remove(const std::string &key) = 0
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virtual bool exists(const std::string &key) = 0
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virtual void update(const std::string &old_key, const std::string &new_key, const std::string &val) = 0
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virtual off_t increase_size(const std::string &key, size_t size, off_t offset, bool append) = 0
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virtual void decrease_size(const std::string &key, size_t size) = 0
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virtual std::vector<std::pair<std::string, bool>> get_dirents(const std::string &dir) const = 0
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virtual std::vector<std::tuple<std::string, bool, size_t, time_t>> get_dirents_extended(const std::string &dir) const = 0
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virtual void iterate_all() const = 0
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virtual ~AbstractMetadataBackend() = default