Comments for ZThread
Zthreads on Mac OS X
I created a simple C++ program on Macbook Pro (Leopard
10.5.6) to play with the ZThreads open source framework. I
downloaded the ZThread 2.3.2 source from sourceforge and
compiled it (eg.. ./configure -> make -> make install). I
built my test application using Eclipse and linked the
ZThread.la library into my application. The application
compiles/links successfully but when I try run my application
within the Eclipse IDE, I get the following errors:
dyld: lazy symbol binding failed: Symbol not found:
__MPIsFullyInitialized
Referenced from: /usr/local/lib/libZThread-2.3.2.dylib
Expected in: flat namespace
dyld: Symbol not found: __MPIsFullyInitialized
Referenced from: /usr/local/lib/libZThread-2.3.2.dylib
Expected in: flat namespace
Any ideas on what could be causing these errors????
Re: Won't Compile
See diffs required here:
I've done them and it compiles fine on g++ 3.4.6
Is ZThreads really dead? I'm trying to contact the author to find out. Thinking in cpp has a good introduction to the library.
I'm going to give ZThreads a good work out as I need a thread library for a commercial project and don't want to write my own again. Be interested in other people's experiences.
Re: Won't Compile
>
> New g++ requires strict definition, this
> function is considered anonymous since
> the one intended is inherited.
> What you should do is replace:
> isDisabled()
> With
> LockHolder<LockType>::isDisabled()
Given that the last release was in 2003, I'm not holding my breath for an update.... ;-)
Re: Won't Compile
> In file included from
> vanilla/SimpleAtomicCount.cxx:25,
> from
> AtomicCount.cxx:50:
> ../include/zthread/Guard.h: In
> destructor `ZThread::Guard<LockType,
> LockingPolicy>::~Guard()':
> ../include/zthread/Guard.h:493: error:
> there are no arguments to `isDisabled'
> that depend on a template parameter, so
> a declaration of `isDisabled' must be
> available
> ../include/zthread/Guard.h:493: error:
> (if you use `-fpermissive', G++ will
> accept your code, but allowing the use
> of an undeclared name is deprecated)
>
New g++ requires strict definition, this function is considered anonymous since the one intended is inherited.
What you should do is replace:
isDisabled()
With
LockHolder<LockType>::isDisabled()
Won't Compile
In file included from vanilla/SimpleAtomicCount.cxx:25,
from AtomicCount.cxx:50:
../include/zthread/Guard.h: In destructor `ZThread::Guard<LockType, LockingPolicy>::~Guard()':
../include/zthread/Guard.h:493: error: there are no arguments to `isDisabled' that depend on a template parameter, so a declaration of `isDisabled' must be available
../include/zthread/Guard.h:493: error: (if you use `-fpermissive', G++ will accept your code, but allowing the use of an undeclared name is deprecated)
Re: Suggestions
> Would it be possible to get this
> interruption method into Boost::Threads
> ? It lacks ANY way of thread
> cancellation, but is otherwise quite
> well known and elegant. Boost might be a
> good way to get something like this to
> the c++ standard eventually too, which
> might make it truly portable some day.
I think this is probably a good idea too. I would need help convincing Boost though.
Re: Suggestions
> I'm always open to suggestions if you
> have extensions or ideas for improvement
Would it be possible to get this interruption method into Boost::Threads ? It lacks ANY way of thread cancellation, but is otherwise quite well known and elegant. Boost might be a good way to get something like this to the c++ standard eventually too, which might make it truly portable some day.
Suggestions
I'm always open to suggestions if you have extensions or ideas for improvement
Should anyone experience the same problem as the previous poster: under Mac OS, you need to link your program against the carbon framework for ZThread to work properly.
Example:
g++ -o test test.cpp -framework Carbon -lZThread