70 lines
2.2 KiB
Go
70 lines
2.2 KiB
Go
package rpc
|
||
|
||
import (
|
||
"context"
|
||
"time"
|
||
|
||
"telesrv/internal/domain"
|
||
"telesrv/internal/readmodelcache"
|
||
)
|
||
|
||
const (
|
||
notifySettingsCacheMaxEntries = 4096
|
||
// notifySettingsCacheTTL 兜底跨实例失效窗口;同实例 Save/Reset 即时失效。
|
||
// 通知设置改动后其它实例的 dialog 列表静音态最多滞后该时长(可接受)。
|
||
notifySettingsCacheTTL = 60 * time.Second
|
||
)
|
||
|
||
// notifySettingsCache 缓存 userID→该用户全部整-peer 通知设置 map,消除 getDialogs/
|
||
// getPeerDialogs/getFullUser/getFullChannel 每次刷新都查 notify_settings 的热路径开销
|
||
// (命中即 0 PG)。内建 TTL + singleflight + LRU。
|
||
type notifySettingsCache struct {
|
||
cache *readmodelcache.Cache[int64, map[domain.Peer]domain.PeerNotifySettings]
|
||
}
|
||
|
||
func newNotifySettingsCache(now func() time.Time) *notifySettingsCache {
|
||
return ¬ifySettingsCache{
|
||
cache: readmodelcache.New[int64, map[domain.Peer]domain.PeerNotifySettings](readmodelcache.Config[int64, map[domain.Peer]domain.PeerNotifySettings]{
|
||
MaxEntries: notifySettingsCacheMaxEntries,
|
||
TTL: notifySettingsCacheTTL,
|
||
Now: now,
|
||
}),
|
||
}
|
||
}
|
||
|
||
// getOrLoad 返回缓存的 map(只读,调用方查表后须 Clone 单条再持有)。
|
||
func (c *notifySettingsCache) getOrLoad(ctx context.Context, userID int64, load func() (map[domain.Peer]domain.PeerNotifySettings, error)) (map[domain.Peer]domain.PeerNotifySettings, error) {
|
||
if c == nil || userID == 0 {
|
||
return load()
|
||
}
|
||
return c.cache.GetOrLoad(ctx, userID, load)
|
||
}
|
||
|
||
func (c *notifySettingsCache) Delete(userID int64) {
|
||
if c == nil || userID == 0 {
|
||
return
|
||
}
|
||
c.cache.Invalidate(userID)
|
||
}
|
||
|
||
func (c *notifySettingsCache) Flush() {
|
||
if c == nil {
|
||
return
|
||
}
|
||
c.cache.Flush()
|
||
}
|
||
|
||
// userNotifySettings 取(缓存的)某用户全部整-peer 通知设置;服务未接通返回 nil。
|
||
func (r *Router) userNotifySettings(ctx context.Context, userID int64) map[domain.Peer]domain.PeerNotifySettings {
|
||
svc, ok := r.accountNotifySvc()
|
||
if !ok {
|
||
return nil
|
||
}
|
||
settings, err := r.notifySettings.getOrLoad(ctx, userID, func() (map[domain.Peer]domain.PeerNotifySettings, error) {
|
||
return svc.AllPeerNotifySettings(ctx, userID)
|
||
})
|
||
if err != nil {
|
||
return nil
|
||
}
|
||
return settings
|
||
}
|