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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 implemen‐
       tation.

       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_getpshared(3), pthread_mutexattr_getrobust(3), pthreads(7)

Linux                                                                          2019-10-10                                                      PTHREAD_MUTEXATTR_INIT(3)