Am 24.01.2012 00:36, schrieb Laurent Bercot:
I need to transfer data coming from a pipe over a UMTS link to a web server.
From time to time, the UMTS link goes down, and worse, it sometimes cannot
be reestablished. I believe that in these cases, the firmware of the UMTS stick
hangs, but this is just a guess. Anyhow, the only way I could get the link up
and
running again when this happens is to reboot the whole system.
As my application will have tried for quite a while to get the link up
before such drastic measures, quite some data may have accumulated in the pipe.
To avoid loosing that data, I need to drain the pipe to store its data
to a file surviving the recovery. This is the place where I just want to check
if
there is still data in the pipe. If it is empty, I reboot.
I must be missing something obvious here. Why don't you just do things
sequentially ?
cat< namedpipe> savefile ; reboot
Consider that the reboot is the exceptional case! The system looks more
something like that:
producer <oldRecoveryData | sender >recoveryData
But don't mind, you guys gave me more helpful ideas I can bear with! :-)
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