c++ - Is it good practice to lock a pthread mutex before destroying it? -

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lock mutex of object before destroy deallocate memory or other unexpected 2 answers

class aaa {     ...     ~aaa()     {         pthread_mutex_lock( &m_mutex );         pthread_mutex_destroy( &m_mutex );     } }

question> saw code somewhere in project. practice so? or undefined behavior lock mutex before destroying it?

it strikes me utterly terrible practice.

from http://pubs.opengroup.org/onlinepubs/009695399/functions/pthread_mutex_destroy.html

it shall safe destroy initialized mutex unlocked. attempting destroy locked mutex results in undefined behavior.

so code guarantees undefined behavior , needs fixed.

c++ pthreads

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