ENV:classes/datatypes/ ?? Read fail with SnoopDOS

Warty · 30 January 2022, 19:03

In doing some debugging on a file manager app I'm working on, I noticed SnoopDOS reporting Fail events. These are tied to using DataTypes in my app. eg:
if ( (the_datatypes_object = NewDTObject(the_file_name, PDTA_Remap, FALSE, DTA_GroupID, GID_PICTURE, TAG_END)) != NULL )

What's confusing to me:
- the SnoopDOS target name is "ENV:classes/datatypes/picture.datatype". Why would it be looking there for classes? or rather, why would ANYTHING be looking in ENV: for classes? Is that normal?
- The code "works", in that it does read the picture, so eventually, something must fall back to SYS:classes/... so is this FAIL actually meaningful in any way?

thomas · 30 January 2022, 19:55

Not every "fail" in SnoopDOS is an error.

Apparently your version of picture.datatype has some customizable options. As you didn't customize anything, there is no settings file. And that's good. Your app should not rely on custom settings.

Warty · 30 January 2022, 20:09

Ah, options. Hadn't thought of that. Thanks for the info Thomas!

30 January 2022, 19:03	#1
Warty Registered User Join Date: Aug 2018 Location: Minneapolis, USA Posts: 301	ENV:classes/datatypes/ ?? Read fail with SnoopDOS In doing some debugging on a file manager app I'm working on, I noticed SnoopDOS reporting Fail events. These are tied to using DataTypes in my app. eg: if ( (the_datatypes_object = NewDTObject(the_file_name, PDTA_Remap, FALSE, DTA_GroupID, GID_PICTURE, TAG_END)) != NULL ) What's confusing to me: - the SnoopDOS target name is "ENV:classes/datatypes/picture.datatype". Why would it be looking there for classes? or rather, why would ANYTHING be looking in ENV: for classes? Is that normal? - The code "works", in that it does read the picture, so eventually, something must fall back to SYS:classes/... so is this FAIL actually meaningful in any way?

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30 January 2022, 19:55	#2
thomas Registered User Join Date: Jan 2002 Location: Germany Posts: 6,985	Not every "fail" in SnoopDOS is an error. Apparently your version of picture.datatype has some customizable options. As you didn't customize anything, there is no settings file. And that's good. Your app should not rely on custom settings.

30 January 2022, 20:09	#3
Warty Registered User Join Date: Aug 2018 Location: Minneapolis, USA Posts: 301	Ah, options. Hadn't thought of that. Thanks for the info Thomas!

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