NAME

pthread_rwlockattr_init, pthread_rwlockattr_destroy - initialize or destroy read/write lock attributes

LIBRARY

POSIX Thread Library (libpthread, -lpthread)

SYNOPSIS



int pthread_rwlockattr_init(pthread_rwlockattr_t *attr)

int pthread_rwlockattr_destroy(pthread_rwlockattr_t *attr)

DESCRIPTION

The pthread_rwlockattr_init() function is used to initialize a read/write lock attributes object.

The pthread_rwlockattr_destroy() function is used to destroy a read/write lock attribute object previously created with pthread_rwlockattr_init().

RETURN VALUES

If successful, the pthread_rwlockattr_init() and pthread_rwlockattr_destroy() functions return zero. Otherwise an error number will be returned to indicate the error.

ERRORS

pthread_rwlockattr_init() shall fail if:

[ENOMEM]
Insufficient memory exists to initialize the read/write lock attributes object.

pthread_rwlockattr_init() and pthread_rwlockattr_destroy() may fail if:

[EINVAL]
The value specified by attr is invalid.

SEE ALSO

pthread_rwlock_init(3)

STANDARDS

The pthread_rwlockattr_init() and pthread_rwlockattr_destroy() functions conform to ISO/IEC 9945-1:1996 (``POSIX.1'') .