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7d7c48df81
Currently, `run_kernel()` dumps all the kernel output to a file (.kunit/test.log) and then opens the file and yields it to callers. This made it easier to respect the requested timeout, if any. But it means that we can't yield the results in real time, either to the parser or to stdout (if --raw_output is set). This change spins up a background thread to enforce the timeout, which allows us to yield the kernel output in real time, while also copying it to the .kunit/test.log file. It's also careful to ensure that the .kunit/test.log file is complete, even in the kunit_parser throws an exception/otherwise doesn't consume every line, see the new `finally` block and unit test. For example: $ ./tools/testing/kunit/kunit.py run --arch=x86_64 --raw_output <configure + build steps> ... <can now see output from QEMU in real time> This does not currently have a visible effect when --raw_output is not passed, as kunit_parser.py currently only outputs everything at the end. But that could change, and this patch is a necessary step towards showing parsed test results in real time. Signed-off-by: Daniel Latypov <dlatypov@google.com> Reviewed-by: David Gow <davidgow@google.com> Reviewed-by: Brendan Higgins <brendanhiggins@google.com> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org> |
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