57 lines
1.5 KiB
Perl
Executable File
57 lines
1.5 KiB
Perl
Executable File
#!/usr/bin/perl
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#----------------------------------------------------------------------
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#
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# unused_oids
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# Finds blocks of manually-assignable OIDs that have not already been
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# claimed by previous hackers. The main use is for finding available
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# OIDs for new internal functions. The numbers printed are inclusive
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# ranges of unused OIDs.
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#
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# Before using a large empty block, make sure you aren't about
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# to take over what was intended as expansion space for something
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# else.
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#
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# Portions Copyright (c) 1996-2018, PostgreSQL Global Development Group
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# Portions Copyright (c) 1994, Regents of the University of California
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#
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# src/include/catalog/unused_oids
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#
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#----------------------------------------------------------------------
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use strict;
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use warnings;
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# Must run in src/include/catalog
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use FindBin;
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chdir $FindBin::RealBin or die "could not cd to $FindBin::RealBin: $!\n";
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use lib "$FindBin::RealBin/../../backend/catalog/";
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use Catalog;
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my @input_files = (glob("pg_*.h"), qw(indexing.h toasting.h));
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my $oids = Catalog::FindAllOidsFromHeaders(@input_files);
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# Also push FirstBootstrapObjectId to serve as a terminator for the last gap.
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my $FirstBootstrapObjectId =
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Catalog::FindDefinedSymbol('access/transam.h', '..',
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'FirstBootstrapObjectId');
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push @{$oids}, $FirstBootstrapObjectId;
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my $prev_oid = 0;
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foreach my $oid (sort { $a <=> $b } @{$oids})
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{
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if ($oid > $prev_oid + 1)
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{
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if ($oid > $prev_oid + 2)
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{
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printf "%d - %d\n", $prev_oid + 1, $oid - 1;
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}
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else
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{
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printf "%d\n", $prev_oid + 1;
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}
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}
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$prev_oid = $oid;
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}
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