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Auditing all callers of virCommandRun and virCommandWait that
passed a non-NULL pointer for exit status turned up some
interesting observations. Many callers were merely passing
a pointer to avoid the overall command dying, but without
caring what the exit status was - but these callers would
be better off treating a child death by signal as an abnormal
exit. Other callers were actually acting on the status, but
not all of them remembered to filter by WIFEXITED and convert
with WEXITSTATUS; depending on the platform, this can result
in a status being reported as 256 times too big. And among
those that correctly parse the output, it gets rather verbose.
Finally, there were the callers that explicitly checked that
the status was 0, and gave their own message, but with fewer
details than what virCommand gives for free.
So the best idea is to move the complexity out of callers and
into virCommand - by default, we return the actual exit status
already cleaned through WEXITSTATUS and treat signals as a
failed command; but the few callers that care can ask for raw
status and act on it themselves.
* src/util/vircommand.h (virCommandRawStatus): New prototype.
* src/libvirt_private.syms (util/command.h): Export it.
* docs/internals/command.html.in: Document it.
* src/util/vircommand.c (virCommandRawStatus): New function.
(virCommandWait): Adjust semantics.
* tests/commandtest.c (test1): Test it.
* daemon/remote.c (remoteDispatchAuthPolkit): Adjust callers.
* src/access/viraccessdriverpolkit.c (virAccessDriverPolkitCheck):
Likewise.
* src/fdstream.c (virFDStreamCloseInt): Likewise.
* src/lxc/lxc_process.c (virLXCProcessStart): Likewise.
* src/qemu/qemu_command.c (qemuCreateInBridgePortWithHelper):
Likewise.
* src/xen/xen_driver.c (xenUnifiedXendProbe): Simplify.
* tests/reconnect.c (mymain): Likewise.
* tests/statstest.c (mymain): Likewise.
* src/bhyve/bhyve_process.c (virBhyveProcessStart)
(virBhyveProcessStop): Don't overwrite virCommand error.
* src/libvirt.c (virConnectAuthGainPolkit): Likewise.
* src/openvz/openvz_driver.c (openvzDomainGetBarrierLimit)
(openvzDomainSetBarrierLimit): Likewise.
* src/util/virebtables.c (virEbTablesOnceInit): Likewise.
* src/util/viriptables.c (virIpTablesOnceInit): Likewise.
* src/util/virnetdevveth.c (virNetDevVethCreate): Fix debug
message.
* src/qemu/qemu_capabilities.c (virQEMUCapsInitQMP): Add comment.
* src/storage/storage_backend_iscsi.c
(virStorageBackendISCSINodeUpdate): Likewise.
Signed-off-by: Eric Blake <eblake@redhat.com>
Multiple tests need to register a function to quiesce errors from
libvirt when using a connection and doing negative tests. Each of those
tests had a static function to do so. This can be replaced by a utility
function that enables the errors when debug is enabled.
This patch adds virtTestQuiesceLibvirtErrors() and refactors test that
use private handlers.
I installed the xen development packages on my non-Xen F16 machine
in order to compile-test xen code and ensure we don't break things
on that front, but being a non-xen machine, /usr/sbin/xend is
obviously not running. Unfortunately, xen-4.1.2-1.fc16 has a bug
where merely trying to probe xend status on a non-xen kernel causes
xend to issue an ABRT crash report:
https://bugzilla.redhat.com/show_bug.cgi?id=728696
Even though libvirt (correctly) skips the test, the xend crash report
is unnecessary noise. Fix this by first filtering out non-xen
kernels even before attempting to probe xend. The test still runs
and passes on a RHEL 5 xen kernel after this patch.
* tests/reconnect.c (mymain): Skip xend probe on non-xen kernel.
* tests/statstest.c (mymain): Likewise.
Don't print OK/FAIL for tests that decide to be skipped after
calling virtTestMain. Delay printing of the indentation before
the first test until we know that the test didn't decide to be
skipped.
Also make the reconnect test use VIRT_TEST_MAIN.
Currently, the xen statstest and reconnect tests are only compiled
if xend is running. Compile them unconditionally if xen headers
are present, but skip the tests at runtime if xend is not running.
This is in response to Eric's suggestion here
https://www.redhat.com/archives/libvir-list/2011-July/msg00367.html
by running this command:
git ls-files -z | xargs -0 perl -pi -0777 -e 's/\n\n+$/\n/'
This is in preparation for a more strict make syntax-check
rule that will detect trailing blank lines.
Done using this command (also includes .c.in and .h.in files):
for i in $(g ls-files|grep -E '\.[ch](\.in)?$'|grep -v gnulib); do
expand -i $i > j && mv j $i;done
Use <config.h>, not "config.h", per autoconf documentation.
* Makefile.cfg (local-checks-to-skip) [sc_require_config_h]: Enable.
* .x-sc_require_config_h: New file, to list exempted files.
* Makefile.am (EXTRA_DIST): Add .x-sc_require_config_h.
* python/libvir.c, python/libvirt_wrap.h, qemud/qemud.c,
qemud/remote.c, src/internal.h, src/openvz_conf.c,
src/openvz_driver.c, src/proxy_internal.h, src/qemu_conf.c,
src/qemu_driver.c, src/remote_internal.h, src/test.h, src/util.c,
src/xen_unified.c, src/xen_unified.h, tests/nodeinfotest.c,
tests/qemuxml2argvtest.c, tests/qemuxml2xmltest.c, tests/reconnect.c,
tests/sexpr2xmltest.c, tests/virshtest.c, tests/xencapstest.c,
tests/xmconfigtest.c, tests/xml2sexprtest.c:
Change #include <> to #include "" for local includes.
Removed many includes from src/internal.h and put them in
the C files which actually use them.
Removed <ansidecl.h> - unused.
Added a comment around __func__.
Removed a clashing redefinition of VERSION symbol.
All limits (PATH_MAX etc) now done in src/internal.h, so we
don't need to include those headers in other files.
* src/xend_internal.c: fix the reconnection problem to xend pointed
by Philippe Berthault
* tests/Makefile.am tests/reconnect.c: add a specific test case
Daniel
