Wilfried Goesgens wrote:
>
> in at2_check_sms_memory kannel tries to evaluate the number of sms the modem
> is able to receive into its memory by reading the size of the storage.
> something like
which type of modems do you refer on this?
> at+cpms?
> ... ME ,77,170 ...
> would be a correct reply. but i found that some of our modems just return
> ... ME ,77,0 ...
> which makes kannel asume, the modem is able to hold zero messages in memory.
> so it says: "77 messages waiting in memory" and starts the memory read
> function.
> there it loops reading memory-slots until the number of sms successfuly read
> is
> equal to the number of sms waiting in memory, or the last slot of the modem
> has passed.
> As of kannel asumes, that there are 0 slots, it won't loop at all.
>
> so i just did the hack to compare the number of sms'es to be read and the
> assumed memory units.
> if nSMS < storagesize, storagesize is wrong. To reach the end, i used n-sms
> +20. The clean way
> would be to have it optionally configured, and warn in syslog, if it's not
> configured, and
> kannel find a zero...
>
> the first part is a check if the pointer exists, which i found crashing it
> in some case it being zero.
>
> the middle part is retrying to delete an sms, if it fails.
>
> cvs diff smsc_at.c
> Index: smsc_at.c
> ===================================================================
> RCS file: /home/cvs/gateway/gw/smsc/smsc_at.c,v
> retrieving revision 1.13
> diff -r1.13 smsc_at.c
> 156c156
> < if (privdata->modem->need_sleep)
> ---
> > if (privdata->modem&&privdata->modem->need_sleep)
> 415a416
> >
> 417a419,420
> > at2_send_modem_command(privdata, "AT S7=45 S0=0 L1 V1 X4 &c1 E1 Q", 0, 0);
> > sleep(1);
is this AT command device specific? If yes, you'll need to ensure you
don't pass it generically to any type of modem.
> 743a747,755
> > if (at2_send_modem_command(privdata, cmd, 20, 0) != 0) {
> > /*
> > * failed to delete the message, we'll just ignore it for
> > now,
> > * this is bad, since if the message really didn't get
> > deleted
> > * we'll see it next time around.
> > */
> > error(2, "AT2[%s]: REALY failed to delete message %d.",
> > octstr_get_cstr(privdata->name), message_number);
> > }
> 937c949,951
> <
> ---
> > /* did the modem tell us the truth about its capacity?
> > if not use current number of sms+20*/
> > if (values[0]>values[1]) values[1]=values[0]+20;
otherwise I'm +0 in commiting this.
Any other opinions, objections, votes please. ?
Stipe
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