5be114adab
* internal/data: comment exported functions * internal/data: make smaller codec exported api surface * make key and value sizes serializing bubble up to everything * Makefile setup & go mod tidy
63 lines
1.6 KiB
Go
63 lines
1.6 KiB
Go
package bitcask
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import "github.com/prologic/bitcask/internal/config"
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const (
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// DefaultMaxDatafileSize is the default maximum datafile size in bytes
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DefaultMaxDatafileSize = 1 << 20 // 1MB
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// DefaultMaxKeySize is the default maximum key size in bytes
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DefaultMaxKeySize = uint32(64) // 64 bytes
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// DefaultMaxValueSize is the default value size in bytes
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DefaultMaxValueSize = uint64(1 << 16) // 65KB
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// DefaultSync is the default file synchronization action
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DefaultSync = false
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)
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// Option is a function that takes a config struct and modifies it
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type Option func(*config.Config) error
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// WithMaxDatafileSize sets the maximum datafile size option
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func WithMaxDatafileSize(size int) Option {
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return func(cfg *config.Config) error {
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cfg.MaxDatafileSize = size
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return nil
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}
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}
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// WithMaxKeySize sets the maximum key size option
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func WithMaxKeySize(size uint32) Option {
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return func(cfg *config.Config) error {
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cfg.MaxKeySize = size
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return nil
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}
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}
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// WithMaxValueSize sets the maximum value size option
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func WithMaxValueSize(size uint64) Option {
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return func(cfg *config.Config) error {
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cfg.MaxValueSize = size
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return nil
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}
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}
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// WithSync causes Sync() to be called on every key/value written increasing
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// durability and safety at the expense of performance
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func WithSync(sync bool) Option {
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return func(cfg *config.Config) error {
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cfg.Sync = sync
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return nil
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}
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}
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func newDefaultConfig() *config.Config {
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return &config.Config{
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MaxDatafileSize: DefaultMaxDatafileSize,
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MaxKeySize: DefaultMaxKeySize,
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MaxValueSize: DefaultMaxValueSize,
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Sync: DefaultSync,
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}
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}
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