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2021-03-12tests: Move unit tests into a separate directoryThomas Huth
The main tests directory still looks very crowded, and it's not clear which files are part of a unit tests and which belong to a different test subsystem. Let's clean up the mess and move the unit tests to a separate directory. Message-Id: <20210310063314.1049838-1-thuth@redhat.com> Acked-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Thomas Huth <thuth@redhat.com>
2020-09-07tests: Fixes building test-util-filemonitor.c on msys2/mingwYonggang Luo
Fixes the following compiling error: ../tests/test-util-filemonitor.c: In function 'test_file_monitor_events': ../tests/test-util-filemonitor.c:620:17: error: too many arguments to function 'mkdir' 620 | if (mkdir(pathsrc, 0700) < 0) { | ^~~~~ In file included from C:/CI-Tools/msys64/mingw64/x86_64-w64-mingw32/include/unistd.h:10, from C:/work/xemu/qemu/include/qemu/osdep.h:93, from ../tests/test-util-filemonitor.c:21: C:/CI-Tools/msys64/mingw64/x86_64-w64-mingw32/include/io.h:282:15: note: declared here 282 | int __cdecl mkdir (const char *) __MINGW_ATTRIB_DEPRECATED_MSVC2005; | ^~~~~ Signed-off-by: Yonggang Luo <luoyonggang@gmail.com> Message-Id: <20200905203425.1470-1-luoyonggang@gmail.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Thomas Huth <thuth@redhat.com>
2020-07-02test-util-filemonitor: Plug unlikely memory leakMarkus Armbruster
test_file_monitor_events() leaks an Error object when qemu_file_monitor_add_watch() fails, which seems unlikely. Plug it. Cc: Daniel P. Berrangé <berrange@redhat.com> Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20200630090351.1247703-11-armbru@redhat.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
2019-12-18tests/test-util-filemonitor: Skip test on non-x86 Travis containersThomas Huth
test-util-filemonitor fails in restricted non-x86 Travis containers since they apparently blacklisted some required system calls there. Let's simply skip the test if we detect such an environment. Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Cleber Rosa <crosa@redhat.com> Tested-by: Cleber Rosa <crosa@redhat.com> Message-Id: <20191204154618.23560-6-thuth@redhat.com>
2019-09-11tests: make filemonitor test more robust to event orderingDaniel P. Berrangé
The ordering of events that are emitted during the rmdir test have changed with kernel >= 5.3. Semantically both new & old orderings are correct, so we must be able to cope with either. To cope with this, when we see an unexpected event, we push it back onto the queue and look and the subsequent event to see if that matches instead. Tested-by: Peter Xu <peterx@redhat.com> Tested-by: Wei Yang <richardw.yang@linux.intel.com> Tested-by: Cornelia Huck <cohuck@redhat.com> Reviewed-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2019-04-02filemon: fix watch IDs to avoid potential wraparound issuesDaniel P. Berrangé
Watch IDs are allocated from incrementing a int counter against the QFileMonitor object. In very long life QEMU processes with a huge amount of USB MTP activity creating & deleting directories it is just about conceivable that the int counter can wrap around. This would result in incorrect behaviour of the file monitor watch APIs due to clashing watch IDs. Instead of trying to detect this situation, this patch changes the way watch IDs are allocated. It is turned into an int64_t variable where the high 32 bits are set from the underlying inotify "int" ID. This gives an ID that is guaranteed unique for the directory as a whole, and we can rely on the kernel to enforce this. QFileMonitor then sets the low 32 bits from a per-directory counter. The USB MTP device only sets watches on the directory as a whole, not files within, so there is no risk of guest triggered wrap around on the low 32 bits. Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2019-04-02filemon: ensure watch IDs are unique to QFileMonitor scopeDaniel P. Berrangé
The watch IDs are mistakenly only unique within the scope of the directory being monitored. This is not useful for clients which are monitoring multiple directories. They require watch IDs to be unique globally within the QFileMonitor scope. Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Tested-by: Bandan Das <bsd@redhat.com> Reviewed-by: Bandan Das <bsd@redhat.com> Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2019-04-02tests: refactor file monitor test to make it more understandableDaniel P. Berrangé
The current file monitor unit tests are too clever for their own good making it hard to understand the desired output. Instead of trying to infer the expected events, explicitly list the events we expect in the operation sequence. Instead of dynamically building a matrix of tests, just have one giant operation sequence that validates all scenarios in a single test. Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2019-02-26util: add helper APIs for dealing with inotify in portable mannerDaniel P. Berrangé
The inotify userspace API for reading events is quite horrible, so it is useful to wrap it in a more friendly API to avoid duplicating code across many users in QEMU. Wrapping it also allows introduction of a platform portability layer, so that we can add impls for non-Linux based equivalents in future. Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>