Elara6331
36ab48a81b
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44 lines
1.3 KiB
Go
44 lines
1.3 KiB
Go
/*
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* owobot - Your server's guardian and entertainer
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* Copyright (C) 2023 owobot Contributors
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero 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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* This program 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 Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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package xsync
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import "sync"
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// KeyedMutex is a mutex implementation using several independent keys
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type KeyedMutex struct {
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mutexes sync.Map
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}
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// Lock locks a mutex with the given key. If a mutex with that key
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// doesn't exist, a new one is created.
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func (m *KeyedMutex) Lock(key string) {
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value, _ := m.mutexes.LoadOrStore(key, &sync.Mutex{})
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mtx := value.(*sync.Mutex)
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mtx.Lock()
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}
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// Unlock unlocks a mutex with the given key if it exists.
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func (m *KeyedMutex) Unlock(key string) {
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value, ok := m.mutexes.Load(key)
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if ok {
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mtx := value.(*sync.Mutex)
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mtx.Unlock()
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}
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}
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