pthread_mutexattr_init(3)  Library Functions Manual  pthread_mutexattr_init(3)

NAME
       pthread_mutexattr_init, pthread_mutexattr_destroy - initialize and
       destroy a mutex attributes object

LIBRARY
       POSIX threads library (libpthread, -lpthread)

SYNOPSIS
       #include <pthread.h>

       int pthread_mutexattr_init(pthread_mutexattr_t *attr);
       int pthread_mutexattr_destroy(pthread_mutexattr_t *attr);

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.

STANDARDS
       POSIX.1-2008.

HISTORY
       POSIX.1-2001.

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 man-pages 6.7               2023-10-31         pthread_mutexattr_init(3)