Critical Sections of code

[Sid Price]

I have a multi-threaded VB.NET application and I need to be able to access a
shared set of variables from multiple threads. In CE.NET there are objects
called critical section objects that a thread can acquire on entry to a
section manipulating such variables and release when done. Any other thread
trying to acquire the same object will suspend until the object is released.

Is there such a mechanism in VB.NET please?

Thanks,
Sid.

--
Sid Price's Software Tools.
http://www.Softtools.com

[Ken Tucker [MVP]]

Hi,

http://msdn.microsoft.com/library/de...tmsynclock.asp

Ken
-------------------
"Sid Price" <no****@nowhere.com> wrote in message
news:u5**************@tk2msftngp13.phx.gbl...

I have a multi-threaded VB.NET application and I need to be able to access
a shared set of variables from multiple threads. In CE.NET there are
objects called critical section objects that a thread can acquire on entry
to a section manipulating such variables and release when done. Any other
thread trying to acquire the same object will suspend until the object is
released.

Is there such a mechanism in VB.NET please?

Thanks,
Sid.

--
Sid Price's Software Tools.
http://www.Softtools.com

[Wicksy]

Its a bit difficult to describe it all here, but yes it does. Look up the
"Synclock" keyword on the net.

"Sid Price" <no****@nowhere.com> wrote in message
news:u5**************@tk2msftngp13.phx.gbl...

I have a multi-threaded VB.NET application and I need to be able to access
a shared set of variables from multiple threads. In CE.NET there are
objects called critical section objects that a thread can acquire on entry
to a section manipulating such variables and release when done. Any other
thread trying to acquire the same object will suspend until the object is
released.

Is there such a mechanism in VB.NET please?

Thanks,
Sid.

--
Sid Price's Software Tools.
http://www.Softtools.com

[Bob Powell [MVP]]

In addition to Ken's information you may find the Mutex useful.

--
Bob Powell [MVP]
Visual C#, System.Drawing

Ramuseco Limited .NET consulting
http://www.ramuseco.com

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"Sid Price" <no****@nowhere.com> wrote in message
news:u5**************@tk2msftngp13.phx.gbl...

I have a multi-threaded VB.NET application and I need to be able to access
a shared set of variables from multiple threads. In CE.NET there are
objects called critical section objects that a thread can acquire on entry
to a section manipulating such variables and release when done. Any other
thread trying to acquire the same object will suspend until the object is
released.

Is there such a mechanism in VB.NET please?

Thanks,
Sid.

--
Sid Price's Software Tools.
http://www.Softtools.com

[Herfried K. Wagner [MVP]]

"Sid Price" <no****@nowhere.com> schrieb:

I have a multi-threaded VB.NET application and I need to be able to access
a shared set of variables from multiple threads. In CE.NET there are
objects called critical section objects that a thread can acquire on entry
to a section manipulating such variables and release when done. Any other
thread trying to acquire the same object will suspend until the object is
released.

Is there such a mechanism in VB.NET please?

Check out the 'SyncLock' statement and the .NET Framework's 'Monitor' class.

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

[Sid Price]

Thanks to all for the great references and pointers.

Sid.

--
Sid Price's Software Tools.
http://www.Softtools.com

"Herfried K. Wagner [MVP]" <hi***************@gmx.at> wrote in message
news:u$**************@TK2MSFTNGP12.phx.gbl...

"Sid Price" <no****@nowhere.com> schrieb:

I have a multi-threaded VB.NET application and I need to be able to access
a shared set of variables from multiple threads. In CE.NET there are
objects called critical section objects that a thread can acquire on entry
to a section manipulating such variables and release when done. Any other
thread trying to acquire the same object will suspend until the object is
released.

Is there such a mechanism in VB.NET please?

Check out the 'SyncLock' statement and the .NET Framework's 'Monitor'
class.

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