diff options
Diffstat (limited to 'mysql-test/suite/innodb/include/ibd_convert.pl')
| -rw-r--r-- | mysql-test/suite/innodb/include/ibd_convert.pl | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/mysql-test/suite/innodb/include/ibd_convert.pl b/mysql-test/suite/innodb/include/ibd_convert.pl new file mode 100644 index 00000000..dfa29ee1 --- /dev/null +++ b/mysql-test/suite/innodb/include/ibd_convert.pl @@ -0,0 +1,45 @@ +# Convert tablespace flags to the format understood by MariaDB 10.1.0..10.1.20, +# with the assumption that the flags were correct. + +sub convert_to_mariadb_101 +{ + my ($file, $page_size) = @_; + open(FILE, "+<", $file) or die "Unable to open $file\n"; + sysread(FILE, $_, $page_size)==$page_size||die "Unable to read $file\n"; + sysseek(FILE, 0, 0)||die "Unable to seek $file\n"; + + # FIL_PAGE_DATA + FSP_SPACE_FLAGS = 38 + 16 = 54 bytes from the start + my($flags) = unpack "x[54]N", $_; + my $badflags = ($flags & 0x3f); + my $compression_level=3; + $badflags |= 1<<6|$compression_level<<7 if ($flags & 1 << 16); + $badflags |= ($flags & 15 << 6) << 7; # PAGE_SSIZE + + if ($badflags != $flags) + { + warn "$file: changing $flags to $badflags\n"; + substr ($_, 54, 4) = pack("N", $badflags); + # Compute and replace the innodb_checksum_algorithm=crc32 checksum + my $polynomial = 0x82f63b78; # CRC-32C + if ($page_size == 1024) + { + # ROW_FORMAT=COMPRESSED + substr($_,0,4)=pack("N", + mycrc32(substr($_, 4, 12), 0, $polynomial) ^ + mycrc32(substr($_, 24, 2), 0, $polynomial) ^ + mycrc32(substr($_, 34, $page_size - 34), 0, + $polynomial)); + } + else + { + my $ck=pack("N", + mycrc32(substr($_, 4, 22), 0, $polynomial) ^ + mycrc32(substr($_, 38, $page_size - 38 - 8), 0, + $polynomial)); + substr($_, 0, 4) = $ck; + substr ($_, $page_size - 8, 4) = $ck; + } + syswrite(FILE, $_, $page_size)==$page_size||die "Unable to write $file\n"; + } + close(FILE); +} |