Re: [Boost-users] [interprocess] Mutex on mac x86 fails

From: Ion Gaztañaga (igaztanaga_at_[hidden])
Date: 2007-03-08 16:02:09

Andrew Agno wrote:
> Ion Gaztañaga wrote:
> ...
> Right--whoops.  Unfortunately, the code never appears to reach that point.
> Getting rid of the remove entirely results in the same output:
> Creating mutex
> Problem encountered:
> 
> I also can't debug it using gdb for some reason, which makes this a bit
> difficult.
> 
> What platforms would you expect the current code to work on?

In theory, I made some changes to extend the UNIX systems supported, 
because not all UNIX systems have process-shared mutexes and condition 
variables. For those systems (like MacOS, I think) an spin-lock based 
emulation (using simple atomic operations) is used. The detection is 
made using the header (please update your code to the latest CVS, so 
that we can talk about the same code) 
<boost/interprocess/detail/workaround.hpp>. If process-shared mutexes 
are detected the macro

BOOST_INTERPROCESS_POSIX_SHARED_MEMORY_OBJECTS

is defined. Please check if that macro is being defined to know which 
type of mutex are you using. In theory, you shouldn't get that 
definition because I think MacOs does not support that. Anyway, I would 
need a bit of help (gcc or whatever) to know what's going on.

Regards,

Ion