Commit 262fbae6 authored Feb 08, 2017 by Max Reitz

progress: Show current progress on SIGINFO

Currently we only print progress information on retrieval of SIGUSR1.
Some systems have a dedicated SIGINFO for this, however, so it should be
handled appropriately if it is available.

Buglink: https://bugs.launchpad.net/qemu/+bug/1662468


Signed-off-by: Max Reitz <mreitz@redhat.com>
Message-id: 20170207235757.2026-1-mreitz@redhat.com
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>

parent cc02e89e

qemu-img.texi

+2 −1

Original line number	Diff line number	Diff line
		@@ -84,7 +84,8 @@ with or without a command shows help and lists the supported formats
		@item -p
		display progress bar (compare, convert and rebase commands only).
		If the @var{-p} option is not used for a command that supports it, the
		progress is reported when the process receives a @code{SIGUSR1} signal.
		progress is reported when the process receives a @code{SIGUSR1} or
		@code{SIGINFO} signal.
		@item -q
		Quiet mode - do not print any output (except errors). There's no progress bar
		in case both @var{-q} and @var{-p} options are used.

util/qemu-progress.c

+3 −0

Original line number	Diff line number	Diff line
		@@ -88,6 +88,9 @@ static void progress_dummy_init(void)
		action.sa_handler = sigusr_print;
		action.sa_flags = 0;
		sigaction(SIGUSR1, &action, NULL);
		#ifdef SIGINFO
		sigaction(SIGINFO, &action, NULL);
		#endif

		/*
		* SIGUSR1 is SIG_IPI and gets blocked in qemu_init_main_loop(). In the