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create_xml_data: fiddling

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This commit is contained in:
Heinz Mauelshagen
2013-06-28 12:10:17 +02:00
parent e486fe4bec
commit afe0fddee2
1 changed files with 17 additions and 21 deletions
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38
thin-provisioning/create_xml_data
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@@ -41,7 +41,7 @@ end
def check_opts(opts)
abort "#{$prg} - 3 arguments required!" if opts.length < 3
abort "#{$prg} - block size must be > 0" if opts[:blocksize] <= 0
abort "#{$prg} - size must be much greater/equal blocksize" if opts[:thinsize] < opts[:blocksize]
abort "#{$prg} - thin size must be much greater/equal blocksize" if opts[:thinsize] < opts[:blocksize]
abort "#{$prg} - number of thin provisioned devices or snapshots must be > 0" if opts[:thins].nil? || opts[:thins] == 0
abort "#{$prg} - size variation too large!" if !opts[:variation].nil? && (opts[:variation] > 2 * (opts[:thinsize] - opts[:blocksize]))
end
@@ -84,27 +84,27 @@ def parse_command_line(argv, units)
end
def begin_superblock(blocksize, nr_data_blocks)
"<superblock uuid=\"\" time=\"0\" transaction=\"1\" data_block_size=\"#{blocksize}\" nr_data_blocks=\"#{nr_data_blocks}\">\n"
"<superblock uuid=\"\" time=\"0\" transaction=\"1\" data_block_size=\"#{blocksize}\" nr_data_blocks=\"#{nr_data_blocks}\">"
end
def end_superblock
"</superblock>\n"
"</superblock>"
end
def begin_device(devid, size)
" <device dev_id=\"#{devid}\" mapped_blocks=\"#{size}\" transaction=\"0\" creation_time=\"0\" snap_time=\"0\">\n"
" <device dev_id=\"#{devid}\" mapped_blocks=\"#{size}\" transaction=\"0\" creation_time=\"0\" snap_time=\"0\">"
end
def end_device
" </device>\n"
" </device>"
end
def single_mapping(from, to)
" <single_mapping origin_block=\"#{from}\" data_block=\"#{to}\" time=\"1\"/>\n"
" <single_mapping origin_block=\"#{from}\" data_block=\"#{to}\" time=\"1\"/>"
end
def range_mapping(from, to, length)
" <range_mapping origin_begin=\"#{from}\" data_begin=\"#{to}\" length=\"#{length}\" time=\"1\"/>\n"
" <range_mapping origin_begin=\"#{from}\" data_begin=\"#{to}\" length=\"#{length}\" time=\"1\"/>"
end
def blocks(opts)
@@ -116,28 +116,24 @@ def this_blocks(opts)
end
def xml_metadata(opts, units)
nr_data_blocks, to = 0, 0
blks = []
blks, dev_id, nr_data_blocks, to = [], 0, 0, 0
0.step(opts[:thins] - 1) do
blks << this_blocks(opts)
nr_data_blocks += blks[-1]
blks << (b = this_blocks(opts))
nr_data_blocks += b
end
puts begin_superblock(opts[:blocksize], nr_data_blocks)
0.step(opts[:thins] - 1) do |dev_id|
b = blks.shift
puts begin_device(dev_id, b)
blks.each do |b|
if opts[:range]
puts range_mapping(0, to, b)
to += b
puts begin_device(dev_id, b), range_mapping(0, to, b), end_device
else
0.step(b - 1) do |from|
puts single_mapping(from, to)
to += 1
end
puts begin_device(dev_id, b)
0.step(b - 1) { |from| puts single_mapping(from, to + from) }
puts end_device
end
puts end_device
dev_id += 1
to += b
end
puts end_superblock
end