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

    Obtains a value representing a desired expiration time.

1 - C Binding

    #include <tis.h>

    int
    tis_get_expiration (
                const struct timespec   *delta,
                struct timespec   *abstime);

2 - Arguments

 delta

    Number of seconds and nanoseconds to add to the current system
    time. (The result is the time in the future.) This result will be
    placed in abstime.

 abstime

    Value representing the absolute expiration time. The absolute
    expiration time is obtained by adding delta to the current system
    time. The resulting abstime is in Universal Coordinated Time
    (UTC).

3 - Description

    If threads are not present, this routine has no effect.

    This routine adds a specified interval to the current absolute
    system time and returns a new absolute time. This new absolute
    time is used as the expiration time in a call to tis_cond_
    timedwait().

    The timespec structure contains the following two fields:

    o  tv_sec is an integral number of seconds.

    o  tv_nsec is an integral number of nanoseconds.

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 delta is invalid.

5 - Associated Routines

       tis_cond_timedwait()