forked from Silverfish/proton-bridge
105 lines
1.8 KiB
Go
105 lines
1.8 KiB
Go
// Copyright (c) 2022 Proton AG
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//
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// This file is part of Proton Mail Bridge.
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//
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// Proton Mail 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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// Proton Mail 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 Proton Mail Bridge. If not, see <https://www.gnu.org/licenses/>.
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package safe
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type Mutex interface {
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Lock()
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Unlock()
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}
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func Lock(fn func(), m ...Mutex) {
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if len(m) == 0 {
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panic("no mutexes provided")
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}
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for _, m := range m {
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m.Lock()
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defer m.Unlock()
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}
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fn()
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}
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func LockRet[T any](fn func() T, m ...Mutex) T {
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var ret T
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Lock(func() {
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ret = fn()
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}, m...)
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return ret
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}
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func LockRetErr[T any](fn func() (T, error), m ...Mutex) (T, error) {
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var ret T
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err := LockRet(func() error {
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var err error
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ret, err = fn()
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return err
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}, m...)
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return ret, err
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}
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type RWMutex interface {
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Mutex
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RLock()
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RUnlock()
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}
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func RLock(fn func(), m ...RWMutex) {
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if len(m) == 0 {
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panic("no mutexes provided")
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}
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for _, m := range m {
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m.RLock()
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defer m.RUnlock()
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}
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fn()
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}
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func RLockRet[T any](fn func() T, m ...RWMutex) T {
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var ret T
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RLock(func() {
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ret = fn()
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}, m...)
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return ret
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}
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func RLockRetErr[T any](fn func() (T, error), m ...RWMutex) (T, error) {
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var err error
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ret := RLockRet(func() T {
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var ret T
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ret, err = fn()
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return ret
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}, m...)
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return ret, err
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}
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