Files
proton-bridge/internal/services/syncservice/download_cache.go
2024-01-02 15:06:05 +01:00

116 lines
2.6 KiB
Go

// Copyright (c) 2024 Proton AG
//
// This file is part of Proton Mail Bridge.
//
// Proton Mail Bridge is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Proton Mail Bridge is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Proton Mail Bridge. If not, see <https://www.gnu.org/licenses/>.
package syncservice
import (
"sync"
"github.com/ProtonMail/go-proton-api"
)
type DownloadCache struct {
messageLock sync.RWMutex
messages map[string]proton.Message
attachmentLock sync.RWMutex
attachments map[string][]byte
}
func newDownloadCache() *DownloadCache {
return &DownloadCache{
messages: make(map[string]proton.Message, 64),
attachments: make(map[string][]byte, 64),
}
}
func (s *DownloadCache) StoreMessage(message proton.Message) {
s.messageLock.Lock()
defer s.messageLock.Unlock()
s.messages[message.ID] = message
}
func (s *DownloadCache) StoreAttachment(id string, data []byte) {
s.attachmentLock.Lock()
defer s.attachmentLock.Unlock()
s.attachments[id] = data
}
func (s *DownloadCache) DeleteMessages(id ...string) {
s.messageLock.Lock()
defer s.messageLock.Unlock()
for _, id := range id {
delete(s.messages, id)
}
}
func (s *DownloadCache) DeleteAttachments(id ...string) {
s.attachmentLock.Lock()
defer s.attachmentLock.Unlock()
for _, id := range id {
delete(s.attachments, id)
}
}
func (s *DownloadCache) GetMessage(id string) (proton.Message, bool) {
s.messageLock.RLock()
defer s.messageLock.RUnlock()
v, ok := s.messages[id]
return v, ok
}
func (s *DownloadCache) GetAttachment(id string) ([]byte, bool) {
s.attachmentLock.RLock()
defer s.attachmentLock.RUnlock()
v, ok := s.attachments[id]
return v, ok
}
func (s *DownloadCache) Clear() {
s.messageLock.Lock()
s.messages = make(map[string]proton.Message, 64)
s.messageLock.Unlock()
s.attachmentLock.Lock()
s.attachments = make(map[string][]byte, 64)
s.attachmentLock.Unlock()
}
func (s *DownloadCache) Count() (int, int) {
var (
messageCount int
attachmentCount int
)
s.messageLock.Lock()
messageCount = len(s.messages)
s.messageLock.Unlock()
s.attachmentLock.Lock()
attachmentCount = len(s.attachments)
s.attachmentLock.Unlock()
return messageCount, attachmentCount
}