Usage (semaphore)

alex · Post by **alex** » Sat Aug 26, 2006 4:05 am

How can I use (semaphore) in Win?
Can anibody give example?

pjot · Post by **pjot** » Sat Aug 26, 2006 7:38 am

Hi Alex,

Take a look here:

http://www.turtle.dds.nl/newlisp/prodcons.lsp

You also need the FORK for Windows ("winfork") to run it:

http://www.turtle.dds.nl/newlisp/winfork.lsp

I am not sure how well it runs though. There have been some changes in (source), for example. On my on machines at home I do not have Windows anymore, but I can verify it next week at my work.

Peter

newdep · Post by **newdep** » Sat Aug 26, 2006 8:34 am

Actualy semaphore is not that different to simmulate if its not in the OS your
worknig with... The only thing you need is "1 common share", that could be also
a file a named-pipe or anything that alows you to read/write too..

Norman.

alex · Post by **alex** » Mon Aug 28, 2006 5:07 pm

I try use (winfork) in example for (semaphore) from manual - it is not work :-(
(prodcons) can't work because of (wait-pid) can't work in Win(see manual). :-(

Resume: I have function (semaphore) in Win, but I can't use it.
What is wrong?

alex · Post by **alex** » Mon Aug 28, 2006 5:13 pm

I use newLISP v.8.9.0 on Win32 MinGW now

pjot · Post by **pjot** » Mon Aug 28, 2006 5:26 pm

Indeed, there is no (wait-pid) in Windows.

Therefore you have to use my version of 'prodcons' which I mentioned earlier:

http://www.turtle.dds.nl/newlisp/prodcons.lsp

As you can see, there is no (wait-pid) in there.

Peter