Streamit Lisa Compact, Руководство пользователя

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Lisa Compact 34
Playlist available?
The first question is whether the requested
playlist is available. The play playlist command
has a mandatory parameter that indicates
which playlist should be started.
Further action depends on whether the
requested playlist is available:
·
If not: The question is, if a task is being
executed
·
If yes: The question is, if the playlist is
updated
These questions are explained below.
Executing task?
If the requested playlist is not available, the Lisa
verifies if the request to play a playlist comes
from a task (see
Task scheduling ) or from a
command (see Controlling the Lisa with
commands ) that is sent directly to the Lisa
(e.g., using LCT).
If the action to play a playlist was triggered by
a command that is sent to the Lisa directly, an
error is reported and no further action is taken.
If the action to play a playlist is triggered by a
task from the task schedule that the Lisa is
executing, playlist '1.pls' is selected instead of
the requested playlist that is not available. If a
specific entry was requested using the second
parameter for the task, this will be ignored.
Playlist updated?
Because it is possible to do content update in
the background , it is checked whether the
playlist has been updated since the last time it
was used. If so, it is reloaded so that the
updated playlist is used.