pthread_mutexattr_init(3)

1PTHREAD_MUTEXATTR_INIT(3)  Linux Programmer's 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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SYNOPSIS

10       #include <pthread.h>
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12       int pthread_mutexattr_init(pthread_mutexattr_t *attr);
13       int pthread_mutexattr_destroy(pthread_mutexattr_t *attr);
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15       Compile and link with -pthread.
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DESCRIPTION

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

33       On success, these functions return 0.  On error, they return a positive
34       error number.
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CONFORMING TO

37       POSIX.1-2001, POSIX.1-2008.
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NOTES

40       Subsequent  changes  to  a  mutex attributes object do not affect mutex
41       that have already been initialized using that object.
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COLOPHON

48       This page is part of release 5.12 of the Linux man-pages project.  A
49       description of the project, information about reporting bugs, and the
50       latest version of this page, can be found at
51       https://www.kernel.org/doc/man-pages/.
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55Linux                             2019-10-10         PTHREAD_MUTEXATTR_INIT(3)