From:	SMTP%"vandenheuvel@eps.enet.dec.com" 27-OCT-1994 09:32:18.25
To:	EVERHART
CC:	
Subj:	Re: Ast parameter for RMS Record Oper. Functions

From: vandenheuvel@eps.enet.dec.com (Hein RMS van den Heuvel)
X-Newsgroups: comp.os.vms
Subject: Re: Ast parameter for RMS Record Oper. Functions
Date: 27 OCT 94 00:14:32
Organization: Digital Equipment Corporation
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In article <1994Oct26.203222.21923@sol.cs.wmich.edu>, pennabad@sol.cs.wmich.edu (Mr Who knows?) writes...
>   Is there a paramter passed to an AST function that is called from the
>   following function ?
> 
>   sys$get(&rab,ast_func1,ast_func2);

	The control block address (RAB or FAB) will be passed as ast param.
	
	It is common programming practice to use the CTX field 
	in the control block (FAB$L_CTX, RAB$L_CTX) to store
	a private thread  control structure address or value.
	The CTX, STS, and STV fields are garantueed to live 
	at the same offsets for RAB anf FABs alike, allowing
	for shared error handling code.


Hope this helps,               +--------------------------------------+
                               | All opinions expressed are mine, and |
Hein van den Heuvel,  Digital  | may not reflect those of my employer |
vandenheuvel@eps.enet.dec.com  +--------------------------------------+