mirror of
https://gitee.com/rainbond/Rainbond.git
synced 2024-12-05 13:17:42 +08:00
39 lines
913 B
Go
39 lines
913 B
Go
// Package umutex provides unblocking mutex
|
|
package umutex
|
|
|
|
// UnblockingMutex represents an unblocking mutex.
|
|
type UnblockingMutex struct {
|
|
// Raw channel
|
|
C chan bool
|
|
}
|
|
|
|
// New returnes a new unblocking mutex instance.
|
|
func New() *UnblockingMutex {
|
|
return &UnblockingMutex{
|
|
C: make(chan bool, 1),
|
|
}
|
|
}
|
|
|
|
// TryLock tries to lock the mutex.
|
|
// When the mutex is free at the time, the function locks the mutex and return
|
|
// true. Otherwise false will be returned. In the both cases, this function
|
|
// doens't block and return the result immediately.
|
|
func (m UnblockingMutex) TryLock() (result bool) {
|
|
select {
|
|
case m.C <- true:
|
|
return true
|
|
default:
|
|
return false
|
|
}
|
|
}
|
|
|
|
// Unlock unclocks the mutex.
|
|
func (m UnblockingMutex) Unlock() {
|
|
<-m.C
|
|
}
|
|
|
|
// ForceLock surely locks the mutex, however, this function blocks when the mutex is locked at the time.
|
|
func (m UnblockingMutex) ForceLock() {
|
|
m.C <- false
|
|
}
|