[Boost-bugs] [Boost C++ Libraries] #5827: condition.cpp: condition_impl::notify_one swallows errors from WaitForSingleObject

Subject: [Boost-bugs] [Boost C++ Libraries] #5827: condition.cpp: condition_impl::notify_one swallows errors from WaitForSingleObject
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2011-08-30 03:15:05

#5827: condition.cpp: condition_impl::notify_one swallows errors from
WaitForSingleObject
------------------------------+---------------------------------------------
 Reporter:  anonymous         |       Owner:         
     Type:  Bugs              |      Status:  new    
Milestone:  To Be Determined  |   Component:  None   
  Version:  Boost 1.47.0      |    Severity:  Problem
 Keywords:                    |  
------------------------------+---------------------------------------------
 condition_impl::notify_one silently swallows errors from
 WaitForSingleObject. The author got the asserts correct, but took no
 action on failures.

 My apologies for throwing a runtime_error. I'm not familiar enogh with
 boost to know what should be thrown. I also suspect the code should throw
 earlier than before function exit.

 Index: condition.cpp
 ===================================================================
 RCS file: /cvsroot/boost/boost/libs/thread/src/condition.cpp,v
 retrieving revision 1.21
 diff -r1.21 condition.cpp
 81,83c81,83
 <     int res = 0;
 <     res = WaitForSingleObject(reinterpret_cast<HANDLE>(m_mutex),
 INFINITE);
 <     assert(res == WAIT_OBJECT_0);
 ---
 >     int wait1 = WAIT_OBJECT_0, wait2 = WAIT_OBJECT_0, res = 0;
 >     wait1 = WaitForSingleObject(reinterpret_cast<HANDLE>(m_mutex),
 INFINITE);
 >     assert(wait1 == WAIT_OBJECT_0);
 100,101c100,101
 <         res = WaitForSingleObject(reinterpret_cast<HANDLE>(m_gate),
 INFINITE);
 <         assert(res == WAIT_OBJECT_0);
 ---
 >         wait2 = WaitForSingleObject(reinterpret_cast<HANDLE>(m_gate),
 INFINITE);
 >         assert(wait2 == WAIT_OBJECT_0);
 126a127,132
 >
 >     if(wait1 != WAIT_OBJECT_0)
 >       throw std::runtime_error("Failed to wait on mutex");
 >
 >     if(wait2 != WAIT_OBJECT_0)
 >       throw std::runtime_error("Failed to wait on gate");

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/5827>
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