Markus Armbruster 8277d2aa58 error: New error_prepend(), error_reportf_err() ... Instead of simply propagating an error verbatim, we sometimes want to add to its message, like this: frobnicate(arg, &err); error_setg(errp, "Can't frobnicate %s: %s", arg, error_get_pretty(err)); error_free(err); This is suboptimal, because it loses err's hint (if any). Moreover, when errp is &error_abort or is subsequently propagated to &error_abort, the abort message points to the place where we last added to the error, not to the place where it originated. To avoid these issues, provide means to add to an error's message in place: frobnicate(arg, errp); error_prepend(errp, "Can't frobnicate %s: ", arg); Likewise, reporting an error like frobnicate(arg, &err); error_report("Can't frobnicate %s: %s", arg, error_get_pretty(err)); can lose err's hint. To avoid: error_reportf_err(err, "Can't frobnicate %s: ", arg); The next commits will put these functions to use. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-Id: <1450452927-8346-10-git-send-email-armbru@redhat.com>		2016-01-13 15:16:17 +01:00
..
acl.c	acl: fix memory leak	2014-11-17 11:48:56 +01:00
base64.c	util: add base64 decoding function	2015-12-18 16:25:08 +00:00
bitmap.c	maint: remove / fix many doubled words	2015-09-11 10:21:38 +03:00
bitops.c	bitops: unroll while loop in find_next_bit()	2013-03-26 13:32:32 +01:00
buffer.c	buffer: allow a buffer to shrink gracefully	2015-11-05 09:09:58 +01:00
compatfd.c	util: Remove unused functions	2015-04-30 16:05:48 +03:00
coroutine-gthread.c	coroutine: move into libqemuutil.a library	2015-10-20 14:59:04 +01:00
coroutine-sigaltstack.c	coroutine: move into libqemuutil.a library	2015-10-20 14:59:04 +01:00
coroutine-ucontext.c	coroutine: move into libqemuutil.a library	2015-10-20 14:59:04 +01:00
coroutine-win32.c	coroutine: move into libqemuutil.a library	2015-10-20 14:59:04 +01:00
crc32c.c	qemu: add castagnoli crc32c checksum algorithm	2013-05-03 10:31:58 +02:00
cutils.c	utils: rename strtosz to use qemu prefix	2015-09-25 12:04:41 +02:00
envlist.c	utils: drop strtok_r from envlist_parse	2015-02-16 16:20:02 -06:00
error.c	error: New error_prepend(), error_reportf_err()	2016-01-13 15:16:17 +01:00
event_notifier-posix.c	util: const event_notifier_get_fd() argument	2015-10-24 18:02:49 +02:00
event_notifier-win32.c
fifo8.c	savevm: Remove all the unneeded version_minimum_id_old (arm)	2014-05-13 16:09:35 +01:00
getauxval.c	util: Move general qemu_getauxval to util/getauxval.c	2014-09-09 13:13:05 +02:00
hbitmap.c	util/hbitmap: Add an API to reset all set bits in hbitmap	2015-06-23 15:06:16 +01:00
hexdump.c	Rename hexdump to avoid FreeBSD libutil conflict	2013-05-20 08:20:08 -05:00
host-utils.c	util: Don't link host-utils.o if it's empty	2014-09-09 13:13:05 +02:00
id.c	util/id: fully allocate names table	2015-12-04 09:39:55 +03:00
iov.c	iov: don't touch iov in iov_send_recv()	2015-06-23 16:05:34 +01:00
Makefile.objs	util: add base64 decoding function	2015-12-18 16:25:08 +00:00
memfd.c	vhost: add migration block if memfd failed	2015-10-22 14:34:49 +03:00
mmap-alloc.c	mmap-alloc: tweak a comment on ppc64	2015-12-22 17:45:12 +02:00
module.c	module: Don't complain when a module is absent	2014-07-18 14:57:35 +02:00
notify.c	notify: add NotiferWithReturn so notifier list can abort	2013-06-28 09:20:26 +02:00
osdep.c	osdep: Change default value of qemu_hw_version() to "2.5+"	2015-11-25 13:42:37 +02:00
oslib-posix.c	util/mmap-alloc: fix hugetlb support on ppc64	2015-12-02 22:38:23 +02:00
oslib-win32.c	oslib-win32: Change return type of function getpagesize	2015-11-30 06:47:02 +01:00
path.c	util/path: Use the GLib memory allocation routines	2014-08-24 13:16:32 +04:00
qemu-config.c	util/qemu-config: fix missing machine command line options	2015-10-20 16:21:00 +02:00
qemu-coroutine-io.c	coroutine: move into libqemuutil.a library	2015-10-20 14:59:04 +01:00
qemu-coroutine-lock.c	coroutine: move into libqemuutil.a library	2015-10-20 14:59:04 +01:00
qemu-coroutine-sleep.c	coroutine: move into libqemuutil.a library	2015-10-20 14:59:04 +01:00
qemu-coroutine.c	coroutine: move into libqemuutil.a library	2015-10-20 14:59:04 +01:00
qemu-error.c	error: Improve documentation	2016-01-13 15:16:16 +01:00
qemu-openpty.c	util/qemu-openpty: fix build with musl libc by include termios.h as fallback	2014-06-11 00:25:06 +01:00
qemu-option.c	error: Don't append a newline when printing the error hint	2016-01-13 11:58:58 +01:00
qemu-progress.c	progress: Allow regressing progress	2015-12-18 14:34:43 +01:00
qemu-sockets.c	io: add QIOChannelSocket class	2015-12-18 12:18:31 +00:00
qemu-thread-posix.c	* Support for jemalloc	2015-09-14 16:13:16 +01:00
qemu-thread-win32.c	qemu-thread: add a fast path to the Win32 QemuEvent	2015-09-24 20:52:28 +02:00
qemu-timer-common.c	Allow clock_gettime() monotonic clock to be utilized on more OS's	2013-04-04 20:22:45 -05:00
rcu.c	Revert "rcu: init rcu_registry_lock after fork"	2015-09-16 17:33:32 +02:00
readline.c	readline: Clear screen on form feed.	2014-06-11 10:10:29 -04:00
rfifolock.c	rfifolock: add recursive FIFO lock	2014-03-13 14:42:21 +01:00
throttle.c	throttle: refuse bps_max/iops_max without bps/iops	2015-08-05 12:53:48 +01:00
timed-average.c	block: Add average I/O queue depth to BlockDeviceTimedStats	2015-11-12 16:22:46 +01:00
unicode.c	unicode: New mod_utf8_codepoint()	2013-04-13 19:39:59 +00:00
uri.c	util/uri: Add overflow check to rfc3986_parse_port	2015-03-18 12:05:31 +01:00