From:	Harold Roman <harold AT giganet DOT com>
Newsgroups:	comp.os.msdos.djgpp
Subject:	UNchain_protected_mode_interrupt_vector?
Date:	Wed, 13 Jan 1999 15:54:41 -0500
Organization:	GigaNet Inc.
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Message-ID:	<369D0811.C135ED20@giganet.com>
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To:	djgpp AT delorie DOT com
DJ-Gateway:	from newsgroup comp.os.msdos.djgpp
Reply-To:	djgpp AT delorie DOT com

I am having a problem with the calls that hook the interrupt
vectors, the "chain" and "set" calls:

  
_go32_dpmi_chain_protected_mode_interrupt_vector(intrVector,
&handler)
  
_go32_dpmi_set_protected_mode_interrupt_vector(intrVector,
&handler)   

The documentation for "set" shows sample code that uses
"chain" to hook the interrupt vector then "set" to unhook
the vector.

That seems ok ... well, almost. I believe that the "chain"
call creates a wrapper for the new interrupt handler. And, I
believe that this wrapper is not free'd when the "set" call
is used to unhook the interrpt handler. I believe this is
causing a memory leak that eventually kills my app.

My question: is there a coresponding "unchain" call?

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