[Boost-users] Fwd: boost::unique_lock throw a exception

Subject: [Boost-users] Fwd: boost::unique_lock throw a exception
From: shada (laf163_at_[hidden])
Date: 2014-02-13 00:15:54

I use boost1.52 on windows2003sp2, boost::unique_lock throw a exception,
please help me.

stack is:

*RaiseException_CxxThrowExceptionboost::throw_exception<boost::lock_error>[e:\library\boost_1_52\boost\throw_exception.hpp£º67]
boost::shared_mutex::timed_lock[e:\library\boost_1_52\boost\thread\win32\shared_mutex.hpp£º430]boost::shared_mutex::lock[e:\library\boost_1_52\boost\thread\win32\shared_mutex.hpp£º382]boost::unique_lock<boost::shared_mutex>::lock[e:\library\boost_1_52\boost\thread\locks.hpp£º510]*
------------------------------------------------------------------------

*bool timed_lock(boost::system_time const& wait_until){    for(;;)    {
    state_data old_state=state;        for(;;)         {
state_data new_state=old_state;            if(new_state.shared_count ||
new_state.exclusive)            {
++new_state.exclusive_waiting;
if(!new_state.exclusive_waiting)                 {
boost::throw_exception(boost::lock_error());                }
    new_state.exclusive_waiting_blocked=true;            }
else            {                new_state.exclusive=true;            }*