Mutex.TryLock is implemented as the below.
The second line is fetching value of the state but it does not use atomic.
Is it is a race issue?
Should type of the state be changed to atomic.Int32 just like Waitgroup?
func (m *Mutex) TryLock() bool {
old := m.state
if old&(mutexLocked|mutexStarving) != 0 {
return false
}
if !atomic.CompareAndSwapInt32(&m.state, old, old|mutexLocked) {
return false
}
if race.Enabled {
race.Acquire(unsafe.Pointer(m))
}
return true
}
--
You received this message because you are subscribed to the Google Groups
"golang-nuts" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to golang-nuts+unsubscr...@googlegroups.com.
To view this discussion on the web visit
https://groups.google.com/d/msgid/golang-nuts/c076387c-aef7-4960-afc1-dbe67ed4fa48n%40googlegroups.com.
