| How many selfs do I have? [message #87393] |
Thu, 30 January 2014 10:58  |
wlandsman
Messages: 743
Registered: June 2000
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Senior Member |
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I was stepping through an object method using the debugger. As I reached the end of the method I was taken to the object cleanup method, with lines such as the following:
if PTR_VALID(self.pPts) then ptr_free, self.pPts
if OBJ_VALID(self.oPolyLine) then obj_destroy, self.oPolyLine
if OBJ_VALID(self.oPolyGon) then obj_destroy, self.oPolyGon
At the end of the cleanup method, I was taken back to the start of the cleanup method. So I stepped through the cleanup again -- and was again taken back to the start. Ultimately the cleanup method was called four times. Each time through, if I did a "help, self" I would get a different ID, e.g.
SELF OBJREF = <ObjHeapVar48371(FIELDPOINTGROUP)>
SELF OBJREF = <ObjHeapVar48445(FIELDPOINTGROUP)>
SELF OBJREF = <ObjHeapVar48524(FIELDPOINTGROUP)>
SELF OBJREF = <ObjHeapVar48551(FIELDPOINTGROUP)>
Does anyone have any idea what might be going on here, or what further diagnostics I might use? Even if I have multiple instances of the object (which I am not aware of ) do they all get destroyed even when I am only using one instance?
This part of a very large widget application which typically crashes IDL (dumping core) about once a day. So I am trying to look for ways to clean the code, e.g. to remove unnecessary object creation.
Thanks, --Wayne
print,!Version
{ x86_64 darwin unix Mac OS X 8.3 Nov 15 2013 64 64}
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