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<p class=MsoNormal><font size=2 color=blue face=Consolas><span
style='font-size:10.0pt;font-family:Consolas;color:blue'>I’ve got some
more detail on the issue and a solution:<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Consolas><span
style='font-size:10.0pt;font-family:Consolas;color:blue'><o:p> </o:p></span></font></p>
<p class=MsoNormal><st1:PersonName w:st="on"><font size=2 color=blue
face=Consolas><span style='font-size:10.0pt;font-family:Consolas;color:blue'>Vortex</span></font></st1:PersonName><font
size=2 color=blue face=Consolas><span style='font-size:10.0pt;font-family:Consolas;
color:blue'> obviously knows the connection has died because the memory for the
<st1:PersonName w:st="on">Vortex</st1:PersonName>Connection object has been
freed when I call vortex_connection_is_ok() with it. So, how about adding a
check for the validity of the memory block that the <st1:PersonName w:st="on">Vortex</st1:PersonName>Connection
object is using within vortex_connection_is_ok()? Or, add a new API
function that checks the objects validity. Something like vortex_connection_is_object_valid()
or vortex_connection_is_memory_valid()?<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Consolas><span
style='font-size:10.0pt;font-family:Consolas;color:blue'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Consolas><span
style='font-size:10.0pt;font-family:Consolas;color:blue'>For checking the
validity I would suggest adding a magic number to each instance of an object
when constructed and resetting it to 0 when destructing it. To check the
object, compare the object instances magic number to the actual magic number.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Consolas><span
style='font-size:10.0pt;font-family:Consolas;color:blue'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Consolas><span
style='font-size:10.0pt;font-family:Consolas;color:blue'>Another surefire check,
at least under Windows, is to call _msize() with the pointer to the <st1:PersonName
w:st="on">Vortex</st1:PersonName>Connection object and check that the returned
size is consistent with a valid <st1:PersonName w:st="on">Vortex</st1:PersonName>Connection
object.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Consolas><span
style='font-size:10.0pt;font-family:Consolas;color:blue'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Consolas><span
style='font-size:10.0pt;font-family:Consolas;color:blue'>Chris<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Consolas><span
style='font-size:10.0pt;font-family:Consolas;color:blue'><o:p> </o:p></span></font></p>
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<hr size=2 width="100%" align=center tabindex=-1>
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<p class=MsoNormal><b><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>From:</span></font></b><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'>
vortex-bounces@lists.aspl.es [mailto:vortex-bounces@lists.aspl.es] <b><span
style='font-weight:bold'>On Behalf Of </span></b><st1:PersonName w:st="on">Chris
Yourch</st1:PersonName><br>
<b><span style='font-weight:bold'>Sent:</span></b> Wednesday, May 21, 2008 3:50
PM<br>
<b><span style='font-weight:bold'>To:</span></b> <st1:PersonName w:st="on">Vortex</st1:PersonName><br>
<b><span style='font-weight:bold'>Subject:</span></b> [<st1:PersonName w:st="on">Vortex</st1:PersonName>]
vortex_connection_is_ok() bug?</span></font><o:p></o:p></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Consolas><span style='font-size:10.0pt;
font-family:Consolas'>I have a situation where 2 peers are connected, exchange
some messages and then one of the peers goes down. When the still running peer
attempts another connection with the peer it tries to reuse the <st1:PersonName
w:st="on">Vortex</st1:PersonName>Connection object. But, before I reuse the <st1:PersonName
w:st="on">Vortex</st1:PersonName>Connection object I pass it to
vortex_connection_is_ok() and it returns true. Shouldn’t
vortex_connection_is_ok() return false? Or, is there another way to
ensure that a <st1:PersonName w:st="on">Vortex</st1:PersonName>Connection
object is really valid? <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Consolas><span style='font-size:10.0pt;
font-family:Consolas'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Consolas><span style='font-size:10.0pt;
font-family:Consolas'>Chris<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Consolas><span style='font-size:10.0pt;
font-family:Consolas'><o:p> </o:p></span></font></p>
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