Re: Email Thresholding

Store the last time an email was sent as the create/modification date of a file (or as data within the file). Check the time elapsed every time you want to send another email.

if ($condition_requires_email) {
  if (-e 'last.email' && -M 'last.email' < 1.0/24.0) {
    print "Don't need to send email yet\n";
  } else {
    &send_email();
    system('touch','last.email');
  }
}
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Update: corrected logic error pointed out by jhourcle.

Dum Spiro Spero

Comment on Re: Email Thresholding Download Code

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Re^2: Email Thresholding by jhourcle (Prior) on Apr 05, 2015 at 05:38 UTC
Although the log-checking process would work, this one is likely the fastest solution for most situations. ... although I'd move the $condition_requires_email to an outer if block that wraps the whole thing ... otherwise, your logic would send e-mail when `(!$condition_requires_email)` I don't know what type of NRT data bfdi533 is dealing with, but with the space weather data that I deal with, getting the alerts out without a potential 1 hr delay is quite important. (and contractually required, according to the mission's PDMP (Project Data Management Plan)).	[reply] [d/l]

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Re^2: Email Thresholding
by jhourcle (Prior) on Apr 05, 2015 at 05:38 UTC

Although the log-checking process would work, this one is likely the fastest solution for most situations.

... although I'd move the $condition_requires_email to an outer if block that wraps the whole thing ... otherwise, your logic would send e-mail when (!$condition_requires_email)

I don't know what type of NRT data bfdi533 is dealing with, but with the space weather data that I deal with, getting the alerts out without a potential 1 hr delay is quite important. (and contractually required, according to the mission's PDMP (Project Data Management Plan)).

[reply]
[d/l]