mirror of
https://github.com/ProtonMail/proton-bridge.git
synced 2025-12-18 08:06:59 +00:00
62 lines
1.3 KiB
Go
62 lines
1.3 KiB
Go
// Copyright (c) 2022 Proton Technologies AG
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//
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// This file is part of ProtonMail Bridge.
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//
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// ProtonMail Bridge is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// ProtonMail Bridge is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with ProtonMail Bridge. If not, see <https://www.gnu.org/licenses/>.
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package cache
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import "sync"
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type pending struct {
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lock sync.Mutex
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path map[string]chan struct{}
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}
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func newPending() *pending {
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return &pending{path: make(map[string]chan struct{})}
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}
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func (p *pending) add(path string) bool {
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p.lock.Lock()
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defer p.lock.Unlock()
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if _, ok := p.path[path]; ok {
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return false
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}
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p.path[path] = make(chan struct{})
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return true
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}
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func (p *pending) wait(path string) {
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p.lock.Lock()
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ch, ok := p.path[path]
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p.lock.Unlock()
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if ok {
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<-ch
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}
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}
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func (p *pending) done(path string) {
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p.lock.Lock()
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defer p.lock.Unlock()
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defer close(p.path[path])
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delete(p.path, path)
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}
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