pthread_rwlockattr_destroy(), pthread_rwlockattr_init() -- destroy and initialize the read-write lock attributes object

SYNOPSIS

#include <pthread.h>

int pthread_rwlockattr_destroy(pthread_rwlockattr_t *attr);

int pthread_rwlockattr_init(pthread_rwlockattr_t *attr);

The pthread_rwlockattr_destroy() function shall destroys a read-write lock attributes object. Once destroyed, an attributes object can be reinitialized with the pthread_rwlockattr_init() function.

The pthread_rwlockattr_init() function initializes the specified read-write lock attributes object attr with the default values for all attributes.

Once a read-write lock attributes object has been used to initialize a read-write lock, changes affecting the attributes object by any function (including destruction) has no affect on the previously initialized read-write locks.

PARAMETERS

attr: Points to a read-write lock attributes object.

RETURN VALUES

On success, the pthread_rwlockattr_destroy() and pthread_rwlockattr_init() functions return zero. On failure, they return one of the following error numbers:

EINVAL: The attr attribute points to an invalid value.
ENOMEM: There is not enough memory to initialize the read-write lock attributes object.

pthread_rwlockattr_destroy(), pthread_rwlockattr_init()
destroy and initialize the read-write lock attributes object

Advanced Realtime Threads

SYNOPSIS

DESCRIPTION

PARAMETERS

RETURN VALUES

CONFORMANCE

MULTITHREAD SAFETY LEVEL

PORTING ISSUES

AVAILABILITY

SEE ALSO

pthread_rwlockattr_destroy(), pthread_rwlockattr_init() destroy and initialize the read-write lock attributes object

Advanced Realtime Threads

pthread_rwlockattr_destroy(), pthread_rwlockattr_init()
destroy and initialize the read-write lock attributes object