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smarty
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| Posted: November 03 2014 at 14:12 | IP Logged
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See the formula. I use this formula to get information from my Radio T-stats. However, about 5% of the time, this formula "times out", but the time it takes (to time out and return an error message) is NOT controlled by the "n" portion of the formula. The formula below SHOULD give up/time our after 20 seconds...but I have seen it take up to 140 seconds and return an error.
95% of the time it returns correct information within about 2-3 seconds (when it works fine)
Is this a bug?
ph_getitcurl("http://192.168.0.50/tstat",20)
ph_getitcurl PowerHome formula function
Description - Retrieves the HTML from the specified URL using a Microsoft ITC (Internet Transfer Control) Syntax
ph_getitcurl ( s, n )
Argument Description :
s The URL you wish to retrieve the HTML for.
n Specifies the timeout in seconds for the control to return the HTML. Specify a 0 for infinity.
Return value - String. Returns the HTML of the specified URL.
Usage - This function is similar to the ph_geturl and ph_getwburl in that the HTML for a specified URL is returned. This particular function uses the Microsoft ITC to accomplish this task.
Edited by smarty - November 03 2014 at 14:18
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smarty
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| Posted: November 03 2014 at 14:22 | IP Logged
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I ran the above formula on a network that doesn't have the that IP address at all. The response was:
Execution time: 42.055 seconds.
The formula evaluates to: *ERROR* - TIMEOUT WAITING FOR RETURN
I was hoping to use the time out error response as a "device check" if you will....but if the error response it is somewhat flaky....it may not be too useful.
Edited by smarty - November 03 2014 at 14:22
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dhoward
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| Posted: November 06 2014 at 18:38 | IP Logged
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Steve,
Not sure why the Microsoft Internet transfer control isnt following the timeout value. I checked the code and Im passing the value to the control but it definitely isnt following the value. In any event, Ive added an additional internal timer so if the ITC control doesnt timeout within the timeout value then PowerHome will interrupt the task anyways.
In my testing, its still possible that you'll get a timeout BEFORE the timeout value has expired. Apparently the timeout control has some internal timer (different from what we set with the timeout value) that can return a timeout fairly quickly if its determined that the URL isnt available. As such, Ive modified the error message to *ERROR* - TIMEOUT WAITING FOR RETURN 0 for the PowerHome internal timeout and *ERROR* - TIMEOUT WAITING FOR RETURN 1 for timeouts resulting from the ITC control.
This fix will be available in the upcoming version.
Dave.
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smarty
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| Posted: November 07 2014 at 12:37 | IP Logged
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Great.
I have been having good luck with my Radio brand thermostats.
I will have to post a "how to" for anyone that wants to go that route (I didn't go with Insteon because they don't support heat pumps - at least no with decent looking 7 day programmable T-stats).
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PowerHome Messageboard : PowerHome Bug Reports
Topic: ph_getitcurl - timeout behavior
