|
From: MIDRANGE-L [mailto:midrange-l-bounces@xxxxxxxxxxxx] On BehalfCPC1224 as
Of Don Brown
Sent: Thursday, August 16, 2018 11:11 PM
To: Midrange Systems Technical Discussion (midrange-l@xxxxxxxxxxxx)
Subject: SMTPR4 and SIGALRM
We are using SK's SMTPR4 to send emails.
We have a payment process that charges credit cards via an external
payment gateway and sends an email with the transaction result.
The problem we have is occasionally the job will be cancelled with
per following ...QWTPITP2
CPC1224 Completion 50 06/08/18 08:17:38.219994
QSYS 0645 *EXT *Nsignal
Thread . . . . : 00000001
Message . . . . : Job ended
abnormally.
Cause . . . . . : A SIGALRM
was received for the job. The action forjob.
the signal was to terminate the
seconds.
I have tracked this back to the SMTPR4 service program that does the
following;
/free
DebugMsg(text);
len = e2a(SMTP: text: buf: %size(buf));
alarm(SMTP.timeout);
slen = send(SMTP.sock: %addr(buf): len: 0);
alarm(0);
if (slen < len);
SetUnixError( SMTP_ERR_SEND: 'send()' );
return *OFF;
endif;
return *ON;
/end-free
So my understanding is the alarm(...) is setting the timeout to 60
which
The send(...) must be failing causing a delay of 60 seconds or more
causes the alarm to be signaled/processed. I presume the signallingwas
used as the send(...) would wait indefinitely ?incomplete.
The the job is then cancelled which leaves the payment process
responding and
I have not been able to identify why the email server is not
while increasing the timeout could be done I don't think that is thebest
option.email to
As the SIGALRM is external to the job how can I detect failure of the
send but not have the entire job cancelled ?so I can
Appreciate any assistance or suggestions.
Would also appreciate any links to signalling for dummies or similar
bet a better understanding of what and how they work.list
Thanks
Don Brown
--
This is the Midrange Systems Technical Discussion (MIDRANGE-L) mailing
To post a message email: MIDRANGE-L@xxxxxxxxxxxx To subscribe,
unsubscribe, or change list options,
visit: https://lists.midrange.com/mailman/listinfo/midrange-l
or email: MIDRANGE-L-request@xxxxxxxxxxxx Before posting, please take
a moment to review the archives at
https://archive.midrange.com/midrange-l.
Please contact support@xxxxxxxxxxxx for any subscription related
questions.
Help support midrange.com by shopping at amazon.com with our affiliate
link: http://amzn.to/2dEadiD
As an Amazon Associate we earn from qualifying purchases.
This mailing list archive is Copyright 1997-2024 by midrange.com and David Gibbs as a compilation work. Use of the archive is restricted to research of a business or technical nature. Any other uses are prohibited. Full details are available on our policy page. If you have questions about this, please contact [javascript protected email address].
Operating expenses for this site are earned using the Amazon Associate program and Google Adsense.