1pthread_mutexattr_init(3)  Library Functions Manual  pthread_mutexattr_init(3)
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NAME

6       pthread_mutexattr_init,  pthread_mutexattr_destroy - initialize and de‐
7       stroy a mutex attributes object
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LIBRARY

10       POSIX threads library (libpthread, -lpthread)
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SYNOPSIS

13       #include <pthread.h>
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15       int pthread_mutexattr_init(pthread_mutexattr_t *attr);
16       int pthread_mutexattr_destroy(pthread_mutexattr_t *attr);
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DESCRIPTION

19       The pthread_mutexattr_init() function initializes the mutex  attributes
20       object  pointed  to  by attr with default values for all attributes de‐
21       fined by the implementation.
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23       The results of initializing an already initialized mutex attributes ob‐
24       ject are undefined.
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26       The pthread_mutexattr_destroy() function destroys a mutex attribute ob‐
27       ject (making it uninitialized).  Once a  mutex  attributes  object  has
28       been destroyed, it can be reinitialized with pthread_mutexattr_init().
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30       The  results of destroying an uninitialized mutex attributes object are
31       undefined.
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RETURN VALUE

34       On success, these functions return 0.  On error, they return a positive
35       error number.
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STANDARDS

38       POSIX.1-2008.
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HISTORY

41       POSIX.1-2001.
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NOTES

44       Subsequent  changes  to  a  mutex attributes object do not affect mutex
45       that have already been initialized using that object.
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SEE ALSO

48       pthread_mutex_init(3), pthread_mutexattr_getpshared(3),
49       pthread_mutexattr_getrobust(3), pthreads(7)
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53Linux man-pages 6.04              2023-03-30         pthread_mutexattr_init(3)