Boriss Mejias wrote:
Raphael Collet wrote:
Dear Ashis,
The port only keeps a reference to the unbound tail of the stream.
It does not keep alive all former messages that were sent.
Sorry for joining late, but, if you have a pointer to the beginning of
the stream, then all the messages sent to that port will stay in the
stream and not be garbage collected. is that right? for instance:
declare
S P
P = {NewPort S}
thread
for Msg in S do
{Browse Msg}
end
end
That will keep the whole stream of messages because you can always
access S.
An alternative code would be
declare
P
thread
S
in
P = {NewPort S}
for Msg in S do
{Browse Msg}
end
end
on this second code you don't need to keep the whole stream, and then
the garbage collector should be able to do its job.
I also like this short version of the code which I found in the Mozart
sources a while ago:
declare
P
thread
for Msg in {NewPort $ P} do
{Browse Msg}
end
end
With this code, there is no temptation to make the scope of the stream
too wide.
Cheers,
Wolfgang
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