82 lines
1.8 KiB
Go
82 lines
1.8 KiB
Go
package store
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import (
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"sync"
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"time"
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"github.com/lbryio/lbry.go/v2/extras/errors"
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"github.com/lbryio/lbry.go/v2/stream"
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"github.com/lbryio/reflector.go/shared"
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)
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// MemStore is an in memory only blob store with no persistence.
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type MemStore struct {
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blobs map[string]stream.Blob
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mu *sync.RWMutex
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}
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func NewMemStore() *MemStore {
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return &MemStore{
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blobs: make(map[string]stream.Blob),
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mu: &sync.RWMutex{},
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}
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}
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const nameMem = "mem"
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// Name is the cache type name
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func (m *MemStore) Name() string { return nameMem }
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// Has returns T/F if the blob is currently stored. It will never error.
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func (m *MemStore) Has(hash string) (bool, error) {
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m.mu.RLock()
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defer m.mu.RUnlock()
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_, ok := m.blobs[hash]
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return ok, nil
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}
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// Get returns the blob byte slice if present and errors if the blob is not found.
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func (m *MemStore) Get(hash string) (stream.Blob, shared.BlobTrace, error) {
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start := time.Now()
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m.mu.RLock()
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defer m.mu.RUnlock()
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blob, ok := m.blobs[hash]
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if !ok {
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return nil, shared.NewBlobTrace(time.Since(start), m.Name()), errors.Err(ErrBlobNotFound)
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}
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return blob, shared.NewBlobTrace(time.Since(start), m.Name()), nil
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}
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// Put stores the blob in memory
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func (m *MemStore) Put(hash string, blob stream.Blob) error {
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m.mu.Lock()
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defer m.mu.Unlock()
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m.blobs[hash] = blob
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return nil
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}
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// PutSD stores the sd blob in memory
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func (m *MemStore) PutSD(hash string, blob stream.Blob) error {
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return m.Put(hash, blob)
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}
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// Delete deletes the blob from the store
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func (m *MemStore) Delete(hash string) error {
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m.mu.Lock()
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defer m.mu.Unlock()
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delete(m.blobs, hash)
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return nil
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}
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// Debug returns the blobs in memory. It's useful for testing and debugging.
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func (m *MemStore) Debug() map[string]stream.Blob {
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m.mu.RLock()
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defer m.mu.RUnlock()
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return m.blobs
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}
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// Shutdown shuts down the store gracefully
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func (m *MemStore) Shutdown() {
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return
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}
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