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Line 56: − metadata+ − checksum ~> checksums/464493d8d929436b6152e868867ed451+ − extra_metadata+ − preview+ − metadata+ − checksum ~> checksums/464493d8d929436b6152e868867ed451+ − extra_metadata+ − preview+ − metadata+ − metadata+ − extra_metadata+ − preview+ − metadata+ − extra_metadata+ − preview+ Line 102:
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Development Team/Datastore Rewrite (view source)
Revision as of 10:14, 23 September 2008
, 10:14, 23 September 2008→Layout on disk
1ab88287-766a-4d98-a7c0-4233dc48647a
1ab88287-766a-4d98-a7c0-4233dc48647a
1ab88287-766a-4d98-a7c0-4233dc48647a
1ab88287-766a-4d98-a7c0-4233dc48647a
metadata
2b
2b
2b90597c-0912-4e7f-8eeb-71a0f004490d
2b90597c-0912-4e7f-8eeb-71a0f004490d
2b90597c-0912-4e7f-8eeb-71a0f004490d -> checksums/464493d8d929436b6152e868867ed451
2b90597c-0912-4e7f-8eeb-71a0f004490d -> checksums/464493d8d929436b6152e868867ed451
checksum ~> checksums/464493d8d929436b6152e868867ed451
extra_metadata
preview
metadata
3c
3c
3cdf5f0e-7595-4166-b1f9-cbedfcfe1c4a
3cdf5f0e-7595-4166-b1f9-cbedfcfe1c4a
3cdf5f0e-7595-4166-b1f9-cbedfcfe1c4a -> checksums/464493d8d929436b6152e868867ed451
3cdf5f0e-7595-4166-b1f9-cbedfcfe1c4a -> checksums/464493d8d929436b6152e868867ed451
checksum ~> checksums/464493d8d929436b6152e868867ed451
extra_metadata
preview
metadata
4d
4d
4db11d29-2f07-4452-bd8e-22a6a483ac19
4db11d29-2f07-4452-bd8e-22a6a483ac19
4db11d29-2f07-4452-bd8e-22a6a483ac19
4db11d29-2f07-4452-bd8e-22a6a483ac19
metadata
extra_metadata
preview
5e
5e
5e9f2027-b41e-4015-a848-6b3972193eb8
5e9f2027-b41e-4015-a848-6b3972193eb8
5e9f2027-b41e-4015-a848-6b3972193eb8
5e9f2027-b41e-4015-a848-6b3972193eb8
metadata
extra_metadata
preview
checksums
checksums
464493d8d929436b6152e868867ed451
464493d8d929436b6152e868867ed451
value.baseB
value.baseB
value.DB
value.DB
'''1a''': directory holding entries, it's only function is to avoid having too many directories in a single directory, as this is considered specially harmful on jffs2.
'''1a/1ab88287-766a-4d98-a7c0-4233dc48647a''': directory holding the files related to one entry
'''1a/1ab88287-766a-4d98-a7c0-4233dc48647a/1ab88287-766a-4d98-a7c0-4233dc48647a''': "data" file related to an entry
'''1a/1ab88287-766a-4d98-a7c0-4233dc48647a/metadata''': file containing the metadata properties of an entry
'''2b/2b90597c-0912-4e7f-8eeb-71a0f004490d/2b90597c-0912-4e7f-8eeb-71a0f004490d -> checksums/464493d8d929436b6152e868867ed451''': hard link to a file in '''checksums'''
'''2b/2b90597c-0912-4e7f-8eeb-71a0f004490d/checksum ~> checksums/464493d8d929436b6152e868867ed451''': symbolic link to the file in '''checksums'''. Used to get the checksum of the entry without having to recalculate it nor read it from the metadata file
== Source code ==
== Source code ==
http://dev.laptop.org/git?p=users/tomeu/datastore;a=summary
http://dev.laptop.org/git?p=users/tomeu/datastore;a=summary