syncthing/internal/model/util.go

37 lines
635 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 http://mozilla.org/MPL/2.0/.
package model
import (
"sync"
"time"
)
func deadlockDetect(mut sync.Locker, timeout time.Duration) {
go func() {
for {
time.Sleep(timeout / 4)
ok := make(chan bool, 2)
go func() {
mut.Lock()
mut.Unlock()
ok <- true
}()
go func() {
time.Sleep(timeout)
ok <- false
}()
if r := <-ok; !r {
panic("deadlock detected")
}
}
}()
}