Now that VB is multithreaded, are there any critical sections?
Thanks
Mark

Can you be more specific ?

"Mark" <(E-Mail Removed)> wrote in message
news:B6CB559E-13D7-421C-901E-(E-Mail Removed)...
> Now that VB is multithreaded, are there any critical sections?
> Thanks
> Mark

"Mark" <(E-Mail Removed)> wrote in message
news:B6CB559E-13D7-421C-901E-(E-Mail Removed)...
> Now that VB is multithreaded, are there any critical sections?
> Thanks

Every object has a Monitor which you can use to control concurrency. Only
one thread can enter a Monitor at a time.

VB has the SyncLock keyword to allow you to use a block of code to
enter/exit a Monitor.

Shared objects are shared among all object instances and threads, so any
shared object can be used like a critical section.

EG

class MyClass
public shared readonly SyncRoot as new Object()

public shared sub DoSomething()
SyncLock SyncRoot
'only one thread at a time in here
end SyncLock
end sub

end class

"Mark" <(E-Mail Removed)> schrieb:
> Now that VB is multithreaded, are there any critical sections?

Take a look at 'SyncLock' and the 'Monitor' class.

--
M S Herfried K. Wagner
M V P <URL:http://dotnet.mvps.org/>
V B <URL:http://dotnet.mvps.org/dotnet/faqs/>

"Herfried K. Wagner [MVP]"
..
>> Now that VB is multithreaded, are there any critical sections?
>
> Take a look at 'SyncLock' and the 'Monitor' class.
>
Are you sure that that is all?

I think that I have to disagree with you about that.

Cor

"Cor Ligthert" <(E-Mail Removed)> schrieb:
>>> Now that VB is multithreaded, are there any critical sections?
>>
>> Take a look at 'SyncLock' and the 'Monitor' class.
>>
> Are you sure that that is all?
>
> I think that I have to disagree with you about that.


?!?

--
M S Herfried K. Wagner
M V P <URL:http://dotnet.mvps.org/>
V B <URL:http://dotnet.mvps.org/dotnet/faqs/>

"Herfried K. Wagner [MVP]" <hirf-spam-me-(E-Mail Removed)>

> "Cor Ligthert" <(E-Mail Removed)> schrieb:
>>>> Now that VB is multithreaded, are there any critical sections?
>>>
>>> Take a look at 'SyncLock' and the 'Monitor' class.
>>>
>> Are you sure that that is all?
>>
>> I think that I have to disagree with you about that.
>
>
When you read your message you can get the idea that you say that this are
the only critical things, I think that is not right, therefore just to
protect you a little bit.

The only thing you had to write was, no I did not mean that.

Cor

"Cor Ligthert" <(E-Mail Removed)> schrieb:
>>>>> Now that VB is multithreaded, are there any critical sections?
>>>>
>>>> Take a look at 'SyncLock' and the 'Monitor' class.
>>>>
>>> Are you sure that that is all?
>>>
>>> I think that I have to disagree with you about that.
>
> When you read your message you can get the idea that you say that this are
> the only critical things, I think that is not right, therefore just to
> protect you a little bit.

"Critical section" is a term with a special meaning in the field of process
synchronization/"multithreading".

--
M S Herfried K. Wagner
M V P <URL:http://dotnet.mvps.org/>
V B <URL:http://dotnet.mvps.org/dotnet/faqs/>