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Introduce and use flush_streams

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Code in gdbsupport can't call gdb_flush, so this introduces a new
"flush_streams" function that must be supplied by the client.

Note that the similar gdb_flush_out_err exists, but it isn't defined
in quite the same way, so it wasn't clear to me whether the two could
be merged.

gdb/ChangeLog
2020-04-13  Tom Tromey  <tom@tromey.com>

	* utils.c (flush_streams): New function.
	* event-loop.c (gdb_wait_for_event): Call flush_streams.

gdbsupport/ChangeLog
2020-04-13  Tom Tromey  <tom@tromey.com>

	* errors.h (flush_streams): Declare.
This commit is contained in:
Tom Tromey
2020-04-13 12:42:59 -06:00
committed by Tom Tromey
parent 29f2bf4f22
commit c1cd3163d9
5 changed files with 23 additions and 2 deletions
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9
gdb/utils.c
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@ -691,6 +691,15 @@ malloc_failure (long size)
}
}
/* See common/errors.h. */
void
flush_streams ()
{
gdb_stdout->flush ();
gdb_stderr->flush ();
}
/* My replacement for the read system call.
Used like `read' but keeps going if `read' returns too soon. */