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From: Nick Roberts <nickrob@gnu.org>
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Date: Sun, 18 Jul 2004 21:07:00 -0000
To: "Alain Magloire" <alain@qnx.com>
Cc: jmolenda@apple.com (Jason Molenda),
	cagney@gnu.org (Andrew Cagney), gdb@sources.redhat.com, 
Subject: Re: How does GDB/MI give the current frame
In-Reply-To: <200407161404.KAA02192@smtp.ott.qnx.com>
References: <28ADB7D6-D69A-11D8-BBF3-000A9569836A@apple.com>
	<200407161404.KAA02192@smtp.ott.qnx.com>
X-SW-Source: 2004-07/txt/msg00236.txt.bz2

 > > For what it's worth, at Apple we've done what Andrew is proposing.  Our  
 > > method spits out a "MI_HOOK_RESULT" notification on the ^done result  
 > > whenever the console command entered by the user has changed the state  
 > > in an important way.  e.g.
 > > 
 > > (gdb)
 > > -interpreter-exec console-quoted up
 > > ~"#2  0x000321f4 in gdb_main (args=0xbffff620) at  
 > > ../../gdb/src/gdb/main.c:851\n"
 > > ~"851\t  catch_errors (captured_main, args, \"\", RETURN_MASK_ALL);\n"
 > > ^done,MI_HOOK_RESULT=[HOOK_TYPE="frame_changed",frame="2"],time= 
 > > {wallclock="0.00620",user="0.00323",system="0.00283",start="1089921236.3 
 > > 59009",end="1089921236.365212"}
 > > (gdb)
 > > 
 > 
 > But what Andrew is proposing is to use the async-output already part of MI to notify
 > the UI of changes.

Wouldn't the output from "up" would be synchronous? I thought asynchronous output
only occurs when the inferior is actually running.

Nick