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synctv/internal/op/cache.go

111 lines
2.2 KiB
Go

package op
import (
"sync"
"time"
"github.com/zijiren233/gencontainer/refreshcache"
"golang.org/x/exp/maps"
)
type Cache struct {
lock sync.RWMutex
cache map[string]*refreshcache.RefreshCache[any]
}
func newBaseCache() *Cache {
return &Cache{
cache: make(map[string]*refreshcache.RefreshCache[any]),
}
}
func (b *Cache) Clear() {
b.lock.Lock()
defer b.lock.Unlock()
b.clear()
}
func (b *Cache) clear() {
maps.Clear(b.cache)
}
func (b *Cache) LoadOrStore(id string, refreshFunc func() (any, error), maxAge time.Duration) (any, error) {
b.lock.RLock()
c, loaded := b.cache[id]
if loaded {
b.lock.RUnlock()
return c.Get()
}
b.lock.RUnlock()
b.lock.Lock()
c, loaded = b.cache[id]
if loaded {
b.lock.Unlock()
return c.Get()
}
c = refreshcache.NewRefreshCache[any](refreshFunc, maxAge)
b.cache[id] = c
b.lock.Unlock()
return c.Get()
}
func (b *Cache) StoreOrRefresh(id string, refreshFunc func() (any, error), maxAge time.Duration) (any, error) {
b.lock.RLock()
c, ok := b.cache[id]
if ok {
b.lock.RUnlock()
return c.Refresh()
}
b.lock.RUnlock()
b.lock.Lock()
c, ok = b.cache[id]
if ok {
b.lock.Unlock()
return c.Refresh()
}
c = refreshcache.NewRefreshCache[any](refreshFunc, maxAge)
b.cache[id] = c
b.lock.Unlock()
return c.Refresh()
}
func (b *Cache) LoadOrStoreWithDynamicFunc(id string, refreshFunc func() (any, error), maxAge time.Duration) (any, error) {
b.lock.RLock()
c, loaded := b.cache[id]
if loaded {
b.lock.RUnlock()
return c.Data().Get(refreshFunc)
}
b.lock.RUnlock()
b.lock.Lock()
c, loaded = b.cache[id]
if loaded {
b.lock.Unlock()
return c.Data().Get(refreshFunc)
}
c = refreshcache.NewRefreshCache[any](refreshFunc, maxAge)
b.cache[id] = c
b.lock.Unlock()
return c.Data().Get(refreshFunc)
}
func (b *Cache) StoreOrRefreshWithDynamicFunc(id string, refreshFunc func() (any, error), maxAge time.Duration) (any, error) {
b.lock.RLock()
c, ok := b.cache[id]
if ok {
b.lock.RUnlock()
return c.Data().Refresh(refreshFunc)
}
b.lock.RUnlock()
b.lock.Lock()
c, ok = b.cache[id]
if ok {
b.lock.Unlock()
return c.Data().Refresh(refreshFunc)
}
c = refreshcache.NewRefreshCache[any](refreshFunc, maxAge)
b.cache[id] = c
b.lock.Unlock()
return c.Data().Refresh(refreshFunc)
}