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

    Wakes at least one thread that is waiting on the specified
    condition variable.

1 - C Binding

    #include <tis.h>

    int
    tis_cond_signal (
                pthread_cond_t   *cond);

2 - Arguments

 cond

    Address of the condition variable (passed by reference) on which
    to signal.

3 - Description

    When threads are present, this routine unblocks at least one
    thread that is waiting on the specified condition variable cond.
    When threads are not present, this routine has no effect.

    For more information about actions taken when threads are
    present, refer to the pthread_cond_signal() 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 cond is not a valid condition
                variable.

5 - Associated Routines

       tis_cond_broadcast()
       tis_cond_destroy()
       tis_cond_init()
       tis_cond_wait()