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

    Unlocks the specified mutex.

1 - C Binding

    #include <tis.h>

    int
    tis_mutex_unlock (
                pthread_mutex_t   *mutex);

2 - Arguments

 mutex

    Address of the mutex (passed by reference) to be unlocked.

3 - Description

    This routine unlocks the specified mutex mutex.

    For more information about actions taken when threads are
    present, refer to the pthread_mutex_unlock() description.

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.
    [EINVAL]    The value specified by mutex is not a valid mutex.
    [EPERM]     The caller does not own the mutex.

5 - Associated Routines

       tis_mutex_destroy()
       tis_mutex_init()
       tis_mutex_lock()
       tis_mutex_trylock()