[boost] bug in recursive_mutex

From: James Ahlborn (james.ahlborn_at_[hidden])
Date: 2004-09-16 09:26:46

I previously posted about issues when using a recursive_mutex and a condition. 
after some more inspection, it turns out it is a minor bug in the
recursive_mutex implementation (the pthread version).  I've included the patch
below, which was generated against the 1.31.0 version of boost (but the bug is
still in the latest cvs as well).  Would be great if someone could integrate
this into the latest code, or possibly a bug fix release for 1.31 (this is a
major bug for anyone using recursive_mutex with condition).

thanks,
-james

*** boost_1_31_0/libs/thread/src/recursive_mutex.cpp    Fri Dec 26 18:22:00 2003
--- boost_1_31_0.jta/libs/thread/src/recursive_mutex.cpp        Thu Sep 16
10:01:10 2004
***************
*** 412,417 ****
--- 412,418 ----

      state.pmutex = &m_mutex;
      state.count = m_count;
+     m_count = 0;
  }

  recursive_try_mutex::recursive_try_mutex()
***************
*** 608,613 ****
--- 609,615 ----

      state.pmutex = &m_mutex;
      state.count = m_count;
+     m_count = 0;
  }

  recursive_timed_mutex::recursive_timed_mutex()
***************
*** 787,792 ****
--- 789,795 ----

      state.pmutex = &m_mutex;
      state.count = m_count;
+     m_count = 0;
  }
  #elif defined(BOOST_HAS_MPTASKS)