[Mono-list] How does Monitor.Enter work?

[Daniel Hughes]

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On Thu, Jul 21, 2011 at 3:41 PM, Vincent Povirk <madewokherd at gmail.com>wrote:

> mono/metadata/icall-def.h contains references to the implementations
> of internal calls. Apparently, that method is mono_monitor_enter,
> implemented in monitor.c.
>
> On Wed, Jul 20, 2011 at 9:54 PM, imays <imays at naver.com> wrote:
> > I got a question how Monitor.Enter works. I investigated .net framework
> > source code, and it shows this only:
> >
> >        [System.Security.SecurityCritical]  // auto-generated
> >        [ResourceExposure(ResourceScope.None)]
> >        [MethodImplAttribute(MethodImplOptions.InternalCall)]
> >        private static extern void ReliableEnter(Object obj, ref bool
> > lockTaken);
> >
> > I guess Monitor.Enter implementation is platform dependent, so I browsed
> > Mono source code and I gave up :(
> >
> > Yes, a critical section assigned for each System.Object instance may
> solve,
> > but, I don't think the actual Monitor.Lock is written like this, because
> > creating a critical section for each System.Object will cost unlimitedly.
> > (Win32 does not allow billions of critical section objects in a process!)
> >
> > Does anybody know how Monitor.Lock works? Please reply. Thanks in
> advance.
> >
> >
> > --
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