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https://github.com/syncthing/syncthing.git
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2c89f04be7
This uses persistent Matcher objects that can reload their content and provide a hash string that can be used to check if it's changed. The cache is local to each Matcher object instead of kept globally.
62 lines
1.4 KiB
Go
62 lines
1.4 KiB
Go
// Copyright (C) 2014 The Syncthing Authors.
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//
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// This program is free software: you can redistribute it and/or modify it
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// under the terms of the GNU General Public License as published by the Free
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// Software Foundation, either version 3 of the License, or (at your option)
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// any later version.
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//
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// This program is distributed in the hope that it will be useful, but WITHOUT
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// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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// FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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// more details.
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//
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// You should have received a copy of the GNU General Public License along
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// with this program. If not, see <http://www.gnu.org/licenses/>.
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package ignore
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import "time"
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type cache struct {
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patterns []Pattern
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entries map[string]cacheEntry
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}
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type cacheEntry struct {
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value bool
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access time.Time
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}
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func newCache(patterns []Pattern) *cache {
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return &cache{
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patterns: patterns,
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entries: make(map[string]cacheEntry),
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}
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}
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func (c *cache) clean(d time.Duration) {
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for k, v := range c.entries {
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if time.Since(v.access) > d {
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delete(c.entries, k)
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}
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}
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}
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func (c *cache) get(key string) (result, ok bool) {
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res, ok := c.entries[key]
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if ok {
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res.access = time.Now()
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c.entries[key] = res
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}
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return res.value, ok
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}
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func (c *cache) set(key string, val bool) {
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c.entries[key] = cacheEntry{val, time.Now()}
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}
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func (c *cache) len() int {
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l := len(c.entries)
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return l
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}
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