Files
mautrix-telegram/pkg/gotd/tgtest/services/file/storage.go
T
2025-06-27 20:03:37 -07:00

73 lines
1.2 KiB
Go

package file
import (
"io"
"sync"
"sync/atomic"
"go.mau.fi/mautrix-telegram/pkg/gotd/syncio"
)
// File represents Telegram file.
type File interface {
io.ReaderAt
io.WriterAt
io.Closer
PartSize() int
SetPartSize(v int)
Size() int
}
// Storage is an abstraction for Telegram file storage.
type Storage interface {
Open(name string) (File, error)
}
type memFile struct {
syncio.BufWriterAt
partSize int32
_ [4]byte
}
func (m *memFile) Size() int {
return m.Len()
}
func (m *memFile) Close() error {
return nil
}
func (m *memFile) PartSize() int {
return int(atomic.LoadInt32(&m.partSize))
}
func (m *memFile) SetPartSize(v int) {
atomic.StoreInt32(&m.partSize, int32(v))
}
// InMemory is an inmemory implementation of file storage.
type InMemory struct {
files map[string]*memFile
filesMux sync.Mutex
}
// NewInMemory creates new InMemory.
func NewInMemory() *InMemory {
return &InMemory{
files: map[string]*memFile{},
}
}
// Open implement Storage.
func (i *InMemory) Open(name string) (File, error) {
i.filesMux.Lock()
defer i.filesMux.Unlock()
file, ok := i.files[name]
if !ok {
file = &memFile{}
i.files[name] = file
}
return file, nil
}