syncthing/internal/model/util.go
2014-11-17 12:54:42 +01:00

46 lines
1.1 KiB
Go

// Copyright (C) 2014 The Syncthing Authors.
//
// This program is free software: you can redistribute it and/or modify it
// under the terms of the GNU General Public License as published by the Free
// Software Foundation, either version 3 of the License, or (at your option)
// any later version.
//
// This program is distributed in the hope that it will be useful, but WITHOUT
// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
// FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
// more details.
//
// You should have received a copy of the GNU General Public License along
// with this program. If not, see <http://www.gnu.org/licenses/>.
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")
}
}
}()
}