VMS Help POSIX Threads, TIS routines, tis_rwlock_destroy  *Conan The Librarian (sorry for the slow response - running on an old VAX)

    Destroys the specified read-write lock object.

1 - C Binding

    #include <tis.h>

    int
    tis_rwlock_destroy (
             tis_rwlock_t   *lock);

2 - Arguments

 lock

    Address of the read-write lock object to be destroyed.

3 - Description

    This routine destroys the specified read-write lock object. Prior
    to calling this routine, ensure that there are no locks granted
    to the specified read-write lock and that there are no threads
    waiting for pending lock acquisitions on the specified read-write
    lock.

    This routine should be called only after all reader threads (and
    perhaps one writer thread) have finished using the specified
    read-write lock.

4 - Return Values

    If an error condition occurs, this routine returns an integer
    value indicating the type of error. Possible return values are as
    follows:

    Return      Description

    0           Successful completion.
    [EBUSY]     The lock is in use.
    [EINVAL]    The value specified by lock is not a valid read-write
                lock.

5 - Associated Routines

       tis_read_lock()
       tis_read_trylock()
       tis_read_unlock()
       tis_rwlock_init()
       tis_write_lock()
       tis_write_trylock()
       tis_write_unlock()