Re: Exception Compilation

roger@xippix.com (Roger Corman)
21 Jan 2000 00:46:48 -0500

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Related articles
Exception Compilation alonh@cmt.co.il (Alon Horesh) (2000-01-19)
Re: Exception Compilation roger@xippix.com (2000-01-21)
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From: roger@xippix.com (Roger Corman)
Newsgroups: comp.compilers
Followup-To: comp.os.ms-windows.programmer.win32
Date: 21 Jan 2000 00:46:48 -0500
Organization: Compilers Central
References: 00-01-077
Keywords: Windows

On 19 Jan 2000 01:15:24 -0500, Alon Horesh <alonh@cmt.co.il> wrote:


>Does anyone know how Microsoft VC ( version 6 ) implement exception and
>exception handling ??
>The question is whether i can simulate throwing an exception from one
>thread into another thread's address space by understanding the
>mechanism of the exception and simulate the exception throwing in
>another thread ??


I am not sure if this does exactly what you want, but I sometimes have
need to cause an exception to be thrown in another thread under Win32.
What I do is:


Suspend the other thread


Get the ContextRecord for the thread.


Modify the instruction pointer of the other thread to be positioned at
the start of a function which I supply. This function takes no
arguments and simply throws the type of exception I want thrown.


Set the thread's context record.


Resume the other thread.


When control returns to the other thread, it will throw the exception.


-Roger Corman




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