Semaphores

From: Vladimir Prus (ghost_at_[hidden])
Date: 2002-11-21 09:55:57

I commonly use "-j 4" flag to bjam, because it's possible to
distribute compilation to four machines. Unfortunately, linking
is not distributed, and this seems affecting performance ---
those four linkers are all accessing the same drive.

To overcome this, I plan to adopt the extension described in

http://maillist.perforce.com/pipermail/jamming/2002-April/001667.html

which allows to serialize executing of certain build actions.

Are there any objections?

If not, I've a question to Rene. I need to skip targets for which the
corresponding semaphore is locked. I.e. instead of extracting it from
stack and processing, I'd like to put it to the end of stack. Which way is
best? Should I simply store a pointer to the last state?

- Volodya