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block/qapi: Clean up how we print to monitor or stdout

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bdrv_snapshot_dump(), bdrv_image_info_specific_dump(),
bdrv_image_info_dump() and their helpers take an fprintf()-like
callback and a FILE * to pass to it.

hmp.c passes monitor_printf() cast to fprintf_function and the current
monitor cast to FILE *.

qemu-img.c and qemu-io-cmds.c pass fprintf and stdout.

The type-punning is technically undefined behaviour, but works in
practice.  Clean up: drop the callback, and call qemu_printf()
instead.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Message-Id: <20190417191805.28198-8-armbru@redhat.com>
This commit is contained in:
Markus Armbruster 2019-04-17 21:17:55 +02:00
parent ac7ff4cf5f
commit e1ce7d747b
5 changed files with 67 additions and 83 deletions
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2
qemu-io-cmds.c
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@ -1699,7 +1699,7 @@ static int info_f(BlockBackend *blk, int argc, char **argv)
}
if (spec_info) {
printf("Format specific information:\n");
bdrv_image_info_specific_dump(fprintf, stdout, spec_info);
bdrv_image_info_specific_dump(spec_info);
qapi_free_ImageInfoSpecific(spec_info);
}