syncthing/lib/ignore/cache.go
2017-02-09 08:04:16 +01:00

53 lines
1018 B
Go

// Copyright (C) 2014 The Syncthing Authors.
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this file,
// You can obtain one at https://mozilla.org/MPL/2.0/.
package ignore
import "time"
type cache struct {
patterns []Pattern
entries map[string]cacheEntry
}
type cacheEntry struct {
result Result
access time.Time
}
func newCache(patterns []Pattern) *cache {
return &cache{
patterns: patterns,
entries: make(map[string]cacheEntry),
}
}
func (c *cache) clean(d time.Duration) {
for k, v := range c.entries {
if time.Since(v.access) > d {
delete(c.entries, k)
}
}
}
func (c *cache) get(key string) (Result, bool) {
entry, ok := c.entries[key]
if ok {
entry.access = time.Now()
c.entries[key] = entry
}
return entry.result, ok
}
func (c *cache) set(key string, result Result) {
c.entries[key] = cacheEntry{result, time.Now()}
}
func (c *cache) len() int {
l := len(c.entries)
return l
}