mirror/mariadb
1
0
Fork 0
mirror of https://github.com/MariaDB/server.git synced 2025-01-29 10:14:19 +01:00
Code Issues Projects Releases Packages Wiki Activity Actions

MDEV-19781: Adapt the test for full_crc32

Browse source
This commit is contained in:
Marko Mäkelä 2019-08-14 09:29:25 +03:00
parent d7be886cb8
commit dc8a20f3d0
1 changed files with 22 additions and 11 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

33
mysql-test/suite/innodb/t/page_id_innochecksum.test
View file

@ -1,5 +1,6 @@
--source include/have_innodb.inc
--source include/not_embedded.inc
--source include/innodb_checksum_algorithm.inc
--echo # Set the environmental variables
let MYSQLD_BASEDIR= `SELECT @@basedir`;
let MYSQLD_DATADIR= `SELECT @@datadir`;
@ -22,22 +23,32 @@ my $page_size = $ENV{INNODB_PAGE_SIZE};
sysopen IBD_FILE, "$ENV{MYSQLD_DATADIR}/test/t1.ibd", O_RDWR
|| die "Cannot open t1.ibd\n";
sysread(IBD_FILE, $_, 38) || die "Cannot read t1.ibd\n";
my $space = unpack("x[34]N", $_);
sysread(IBD_FILE, $_, 58) || die "Cannot read t1.ibd\n";
my ($space,$flags) = unpack("x[34]Nx[16]N", $_);
my $full_crc32 = $flags & 0x10;
sysseek(IBD_FILE, $page_size * 3, SEEK_SET) || die "Cannot seek t1.ibd\n";
my $head = pack("Nx[18]", 4); # better to have a valid page number
my $body = chr(0) x ($page_size - 38 - 8);
my $page= pack("NNx[18]NNN", 0, 4, 1, 0, $space).(chr(0) x ($page_size - 38));
# Calculate innodb_checksum_algorithm=crc32 for the unencrypted page.
# The following bytes are excluded:
# bytes 0..3 (the checksum is stored there)
# bytes 26..37 (encryption key version, post-encryption checksum, tablespace id)
# bytes $page_size-8..$page_size-1 (checksum, LSB of FIL_PAGE_LSN)
# Calculate innodb_checksum_algorithm=crc32 or full_crc32.
my $polynomial = 0x82f63b78; # CRC-32C
my $ck = mycrc32($head, 0, $polynomial) ^ mycrc32($body, 0, $polynomial);
if ($full_crc32)
{
my $ck = mycrc32(substr($page, 0, $page_size-4), 0, $polynomial);
substr($page, $page_size-4, 4) = pack("N", $ck);
}
else
{
# The following bytes are excluded:
# 0..3 (the checksum is stored there)
# 26..37 (encryption key version, post-encryption checksum, tablespace id)
# $page_size-8..$page_size-1 (checksum, LSB of FIL_PAGE_LSN)
my $ck= pack("N",mycrc32(substr($page, 4, 22), 0, $polynomial) ^
mycrc32(substr($page, 38, $page_size-38-8), 0, $polynomial));
substr($page,0,4)=$ck;
substr($page,$page_size-8,4)=$ck;
}
my $page= pack("N",$ck).$head.pack("NNN",1,$ck,$space).$body.pack("Nx[4]",$ck);
die unless syswrite(IBD_FILE, $page, $page_size) == $page_size;
close IBD_FILE;
EOF