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PTHREAD_MUTEXATTR_INIT(3)  Linux Programmer's Manual PTHREAD_MUTEXATTR_INIT(3)
NAME
       pthread_mutexattr_init,   pthread_mutexattr_destroy  -  initialize  and
       destroy a mutex attributes object
SYNOPSIS
       #include <pthread.h>
       int pthread_mutexattr_init(pthread_mutexattr_t *attr);
       int pthread_mutexattr_destroy(pthread_mutexattr_t *attr);
       Compile and link with -pthread.
DESCRIPTION
       The pthread_mutexattr_init() function initializes the mutex  attributes
       object  pointed  to  by  attr  with  default  values for all attributes
       defined by the implementation.
       The results of initializing an  already  initialized  mutex  attributes
       object are undefined.
       The  pthread_mutexattr_destroy()  function  destroys  a mutex attribute
       object (making it uninitialized).  Once a mutex attributes  object  has
       been destroyed, it can be reinitialized with pthread_mutexattr_init().
       The  results of destroying an uninitialized mutex attributes object are
       undefined.
RETURN VALUE
       On success, these functions return 0.  On error, they return a positive
       error number.
CONFORMING TO
       POSIX.1-2001, POSIX.1-2008.
NOTES
       Subsequent  changes  to  a  mutex attributes object do not affect mutex
       that have already been initialized using that object.
SEE ALSO
       pthread_mutex_init(3), pthread_mutexattr_getrobust(3),
       pthread_mutexattr_getpshared(3), pthreads(7)
COLOPHON
       This page is part of release 4.15 of the Linux man-pages project.  A
       description of the project, information about reporting bugs, and the
       latest version of this page, can be found at
       https://www.kernel.org/doc/man-pages/.
Linux                             2017-08-20         PTHREAD_MUTEXATTR_INIT(3)