Re: [Boost-users] Assertion `!pthread_mutex_destroy(&m)' failed

Subject: Re: [Boost-users] Assertion `!pthread_mutex_destroy(&m)' failed
From: nmittal (nmittal_at_[hidden])
Date: 2009-06-24 16:54:40

thanks. Could you point me to a better way for handling signals.

thanks
Nishant

Zeljko Vrba wrote:
> 
> On Tue, Jun 23, 2009 at 10:14:33AM -0700, nmittal wrote:
>> 
>> void ctrl_c_handler(int sig) {
>> 	cout << "Received SIGTERM" << endl;
>> 
> 
> This line by itself is enough to cause undefined behavior.  There is very
> little that you can do from a signal handler; accessing global objects
> such
> as cout is a VERY bad idea.
> 
>> 
>> the program works fine and responds to messages. however I get the
>> following
>> error when i press CTRL-C
>> 
>> mysql_dealer:
>> /usr/local/include/boost-1_39/boost/thread/pthread/mutex.hpp:45:
>> boost::mutex::~mutex(): Assertion `!pthread_mutex_destroy(&m)' failed.
>> 
>> any help would be much appreciated.
>> 
> What most probably happens is that the destructor is attempting to destroy
> the mutex while it is held locked by another thread.  You will need to
> devise
> a better shutdown strategy.
> 
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> 
> 

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