Re: PATCH: Make gdbserver use async I/O on Linux

[Daniel Jacobowitz <dmj+ at andrew dot cmu dot edu>]

On Thu, Jun 07, 2001 at 09:36:23AM +0300, Eli Zaretskii wrote:
> 
> On Wed, 6 Jun 2001, Daniel Jacobowitz wrote:
> 
> > The only problem I can think of that this might cause is if F_SETOWN is less
> > portable than FASYNC.
> 
> Exactly.  And that is why I'd suggest to make this change conditioned
> on F_SETOWN being defined.

Easy enough.  How about this, then?

-- 
Daniel Jacobowitz                           Debian GNU/Linux Developer
Monta Vista Software                              Debian Security Team
Index: gdb/gdbserver/low-linux.c
===================================================================
RCS file: /cvs/src/src/gdb/gdbserver/low-linux.c,v
retrieving revision 1.9
diff -u -r1.9 low-linux.c
--- low-linux.c	2001/03/28 09:15:22	1.9
+++ low-linux.c	2001/06/07 17:37:52
@@ -105,7 +105,9 @@
   int pid;
   union wait w;
 
+  enable_async_io ();
   pid = wait (&w);
+  disable_async_io ();
   if (pid != inferior_pid)
     perror_with_name ("wait");
 
Index: gdb/gdbserver/remote-utils.c
===================================================================
RCS file: /cvs/src/src/gdb/gdbserver/remote-utils.c,v
retrieving revision 1.4
diff -u -r1.4 remote-utils.c
--- remote-utils.c	2001/03/06 08:21:44	1.4
+++ remote-utils.c	2001/06/07 17:37:52
@@ -156,6 +156,9 @@
 #if defined(F_SETFL) && defined (FASYNC)
   save_fcntl_flags = fcntl (remote_desc, F_GETFL, 0);
   fcntl (remote_desc, F_SETFL, save_fcntl_flags | FASYNC);
+#if defined(F_SETOWN)
+  fcntl (remote_desc, F_SETOWN, getpid());
+#endif
   disable_async_io ();
 #endif /* FASYNC */
   fprintf (stderr, "Remote debugging using %s\n", name);