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PG_FINALLY

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This gives an alternative way of catching exceptions, for the common
case where the cleanup code is the same in the error and non-error
cases.  So instead of

    PG_TRY();
    {
        ... code that might throw ereport(ERROR) ...
    }
    PG_CATCH();
    {
        cleanup();
	PG_RE_THROW();
    }
    PG_END_TRY();
    cleanup();

one can write

    PG_TRY();
    {
        ... code that might throw ereport(ERROR) ...
    }
    PG_FINALLY();
    {
        cleanup();
    }
    PG_END_TRY();

Discussion: https://www.postgresql.org/message-id/flat/95a822c3-728b-af0e-d7e5-71890507ae0c%402ndquadrant.com
This commit is contained in:
Peter Eisentraut
2019-11-01 11:09:52 +01:00
parent 7302514088
commit 604bd36711
32 changed files with 91 additions and 245 deletions
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4
src/backend/libpq/be-fsstubs.c
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@@ -503,13 +503,11 @@ be_lo_export(PG_FUNCTION_ARGS)
fd = OpenTransientFilePerm(fnamebuf, O_CREAT | O_WRONLY | O_TRUNC | PG_BINARY,
S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH);
}
PG_CATCH();
PG_FINALLY();
{
umask(oumask);
PG_RE_THROW();
}
PG_END_TRY();
umask(oumask);
if (fd < 0)
ereport(ERROR,
(errcode_for_file_access(),