45 lines
886 B
Go
45 lines
886 B
Go
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// Package kvstore contains key-value stores
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package kvstore
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import (
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"errors"
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"sync"
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)
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// MemoryKeyValueStore is an in-memory key-value store
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type MemoryKeyValueStore struct {
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m map[string][]byte
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mu sync.Mutex
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}
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// NewMemoryKeyValueStore creates a new in-memory key-value store
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func NewMemoryKeyValueStore() *MemoryKeyValueStore {
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return &MemoryKeyValueStore{
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m: make(map[string][]byte),
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}
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}
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// Get returns a key from the key value store
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func (kvs *MemoryKeyValueStore) Get(key string) ([]byte, error) {
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var (
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err error
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ok bool
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value []byte
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)
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kvs.mu.Lock()
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defer kvs.mu.Unlock()
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value, ok = kvs.m[key]
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if !ok {
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err = errors.New("no such key")
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}
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return value, err
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}
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// Set sets a key into the key value store
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func (kvs *MemoryKeyValueStore) Set(key string, value []byte) error {
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kvs.mu.Lock()
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defer kvs.mu.Unlock()
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kvs.m[key] = value
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return nil
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}
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