Re: [Boost-users] mutex.cpp with pthread problem

From: Michael Garriss (mdg_at_[hidden])
Date: 2004-12-16 15:20:16

Michael Garriss said the following on 12/16/04 12:49:
> Michael Garriss said the following on 12/16/04 10:46:
> 
>> from libs/thread/mutex.cpp in boost 1.31, around line 211:
>>
>>  void mutex::do_lock()
>>  {
>>      int res = 0;
>>      res = pthread_mutex_lock(&m_mutex);
>>      if (res == EDEADLK) throw lock_error();
>>      assert(res == 0);
>>  }
>>
>> that last assert is failing for me.  pthread_mutex_lock is returning 
>> 22 which if it's from sys/errno.h is EINVAL or "Invalid argument".  
>> any ideas?
>>
>> i built boost 1.31 on hpux 11.11 with a gcc from hp.  some info:
>>
>>  > gcc -v
>> Reading specs from 
>> /usr/local/lib/gcc-lib/hppa2.0w-hp-hpux11.11/3.3.3/specs
>> Configured with: 
>> /scratch/zack/pkgbuild/3.3.1/hpux-11/gcc-3.3.3/configure 
>> --enable-languages=c,c++ --enable-threads=posix --disable-nls 
>> --with-gnu-as --without-gnu-ld --with-as=/usr/local/bin/as 
>> --prefix=/usr/local
>> Thread model: posix
>> gcc version 3.3.3
>>
>>  > uname -a
>> HP-UX unknown B.11.11 U 9000/800 180901557 unlimited-user license
>>
>> thanks,
>> mike
>> _______________________________________________
>> Boost-users mailing list
>> Boost-users_at_[hidden]
>> http://lists.boost.org/mailman/listinfo.cgi/boost-users
>>
> 
> 
> ok, this breaks with an assertrion failure:
> 
>  #include <boost/thread/thread.hpp>
>  #include <boost/thread/mutex.hpp>
>  #include <iostream>
>  struct count {
>      boost::mutex mutex;
>      count (int) { }
>      void operator()() {
>          boost::mutex::scoped_lock lock(mutex);
>          std::cout << "Here" << std::endl;
>      }
>  };
>  int main(void) {
>    count c(1);
>    boost::thread thrd1(boost::ref(c));
>    thrd1.join();
>    return 0;
>  }
> 
> 
> but this does not:
>  #include <boost/thread/thread.hpp>
>  #include <boost/thread/mutex.hpp>
>  boost::mutex mutex;
>  struct count {
>      count (int) { }
>      void operator()() { boost::mutex::scoped_lock lock(mutex); }
>  };
>  int main(void) {
>    boost::thread thrd1(count(0));
>    thrd1.join();
>    return 0;
>  }
> 
> --------------------------------------------------------------------------
> 
> --- mgarriss_at_hpux-test01 ~/test ---
> g++ -I /home/mgarriss/dev/tp-compiled/include/boost-1_31_0 -pthread 
> test.cxx 
> /home/mgarriss/dev/tp-compiled/lib/boost-1_31_0/libboost_thread-gcc-mt.a
> /usr/local/hppa2.0w-hp-hpux11.11/bin/nm: a.out: no symbols
> --- mgarriss_at_hpux-test01 ~/test ---
> ./a.out
> Assertion failed: _EX, file 
> /home/mgarriss/dev/tp-sources/boost_1_31_0/libs/thread/src/mutex.cpp, 
> line 211
> ABORT instruction (core dumped)
> 
> it also breaks on making mutex a static class member.  so in summary it 
> only works (i think) if the mutex is a member var.
> 
> Mike
> _______________________________________________
> Boost-users mailing list
> Boost-users_at_[hidden]
> http://lists.boost.org/mailman/listinfo.cgi/boost-users
> 

err. those exmaples got mixed up (thx Bklyn).  global mutex breaks it 
and member var mutex works.

sorry for the noise,
mike