Simplify "cpuinfo" subcommand check #2633
Conversation
How does it affect existing users who use CR_CPUINFO? |
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@avagin Could you share an example? |
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@lianakoleva I think I messed up when I was trying to read this code last time. CR_CPUINFO is a completely internal thing and it isn't a part of our public interface. |
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A friendly reminder that this PR had no activity for 30 days. |
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@lianakoleva Sorry for the long delay. The main problem was that I hadn't seen a significant difference between the current and new version. Yesterday, I decided to look at this PR more closely, which led to even more cleanups in crtools.c: lianakoleva#1. Could you please review this change and merge it into your branch? |
The cpuinfo command requires a "dump" or "check" subcommand. Thus, we replace `CR_CPUINFO` with `CR_CPUINFO_DUMP` and `CR_CPUINFO_CHECK`. This allows us to remove unnecessary subcommand check in `image_dir_mode()` and perform all parsing in `parse_criu_mode()`. With this change the check for validating the cpuinfo subcommand is now done only once with `CR_CPUINFO_DUMP` or `CR_CPUINFO_CHECK` enum. Signed-off-by: Liana Koleva <43767763+lianakoleva@users.noreply.github.com> Signed-off-by: Radostin Stoyanov <rstoyanov@fedoraproject.org>
Signed-off-by: Andrei Vagin <avagin@gmail.com>
The `criu cpuinfo check` command calls cpu_validate_cpuinfo(), which attempts to open the cpuinfo.img file using `open_image()`. If the image file is not found, `open_image()` returns an "empty image" object. As a result, `cpu_validate_cpuinfo()` tries to read from it and fails with the following error: (00.002473) Error (criu/protobuf.c:72): Unexpected EOF on (empty-image) This patch adds a check for an empty image and appropriate error message. Signed-off-by: Radostin Stoyanov <rstoyanov@fedoraproject.org>
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@lianakoleva Thank you for working on this! @avagin I've updated Liana's branch with the cleanups in |
The command "cpuinfo" requires a subcommand "dump" or "check".
CR_CPUINFOis removed;CR_CPUINFO_DUMPandCR_CPUINFO_CHECKare added in its place.parse_criu_mode, removing need for passing string subcommand toimage_dir_mode.CR_CPUINFO_DUMPorCR_CPUINFO_CHECKpropagated on success, rather than propagating bothCR_CPUINFOand the subcommand string while doingstrcmpon each call toimage_dir_mode.