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Add proper errcodes to new error messages for read() failures
Those would use the default ERRCODE_INTERNAL_ERROR, but for foreseeable
failures an errcode ought to be set, ERRCODE_DATA_CORRUPTED making the
most sense here.
While on the way, fix one errcode_for_file_access missing in origin.c
since the code has been created, and remove one assignment of errno to 0
before calling read(), as this was around to fit with what was present
before 811b6e36
where errno would not be set when not enough bytes are
read. I have noticed the first one, and Tom has pinged me about the
second one.
Author: Michael Paquier
Reported-by: Tom Lane
Discussion: https://postgr.es/m/27265.1531925836@sss.pgh.pa.us
This commit is contained in:
3
src/backend/utils/cache/relmapper.c
vendored
3
src/backend/utils/cache/relmapper.c
vendored
@ -669,7 +669,8 @@ load_relmap_file(bool shared)
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errmsg("could not read file \"%s\": %m", mapfilename)));
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else
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ereport(FATAL,
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(errmsg("could not read file \"%s\": read %d of %zu",
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(errcode(ERRCODE_DATA_CORRUPTED),
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errmsg("could not read file \"%s\": read %d of %zu",
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mapfilename, r, sizeof(RelMapFile))));
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}
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pgstat_report_wait_end();
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