On 03/02/2014 10:38 PM, alexhairyman wrote:
> I think I'm missing something big, but I'm having troubles with mutexes
> (using in a parallel foreach loop somewhere else); Why do the trylocks
> return true shouldn't they return false because the mutex is already
> locked?
The documentation says that Mutex is a recursive lock, meaning that the
holder of the lock can lock it even further. :) There is an internal
reference count so that the lock must be unlocked the equal number of
times that it has been locked.
> I don't think this is a phobos bug, I'm on OSX using dmd 2.065
>
> import core.sync.mutex;
> import std.stdio;
>
> void main()
> {
> Mutex m = new Mutex;
> m.lock();
> writefln("%s", m.tryLock());
> writefln("%s", m.tryLock());
The lock count is now 3. You must unlock it 3 times so that another
thread can lock it.
> return;
> }
>
> produces:
> true
> true
>
> Thanks!
> Alex
Ali
