mirror of https://github.com/docker/docs.git
68 lines
1.2 KiB
Go
68 lines
1.2 KiB
Go
package trustmanager
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import (
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"os"
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"sync"
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)
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// MemoryFileStore is an implementation of LimitedFileStore that keeps
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// the contents in memory.
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type MemoryFileStore struct {
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sync.Mutex
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files map[string][]byte
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}
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// NewMemoryFileStore creates a MemoryFileStore
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func NewMemoryFileStore() *MemoryFileStore {
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return &MemoryFileStore{
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files: make(map[string][]byte),
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}
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}
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// Add writes data to a file with a given name
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func (f *MemoryFileStore) Add(name string, data []byte) error {
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f.Lock()
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defer f.Unlock()
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f.files[name] = data
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return nil
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}
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// Remove removes a file identified by name
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func (f *MemoryFileStore) Remove(name string) error {
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f.Lock()
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defer f.Unlock()
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if _, present := f.files[name]; !present {
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return os.ErrNotExist
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}
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delete(f.files, name)
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return nil
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}
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// Get returns the data given a file name
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func (f *MemoryFileStore) Get(name string) ([]byte, error) {
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f.Lock()
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defer f.Unlock()
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fileData, present := f.files[name]
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if !present {
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return nil, os.ErrNotExist
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}
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return fileData, nil
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}
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// ListFiles lists all the files inside of a store
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func (f *MemoryFileStore) ListFiles() []string {
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var list []string
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for name := range f.files {
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list = append(list, name)
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}
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return list
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}
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