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Updated custom attribute documentation and tweaked nonexistant attributes

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Because of limitations in how littlefs manages attributes on disk,
littlefs views zero-length attributes and missing attributes as the same
thing. The simpliest implementation of attributes mirrors this behaviour
transparently for the user.
This commit is contained in:
Christopher Haster
2018-08-04 19:23:49 -05:00
parent f369f80540
commit a88230ae6a
3 changed files with 59 additions and 50 deletions
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2
tests/test_attrs.sh
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@@ -241,7 +241,7 @@ tests/test.py << TEST
lfs_getattr(&lfs, "hello/hello", 'B', buffer, 9) => 9;
lfs_getattr(&lfs, "hello/hello", 'C', buffer+9, 9) => 5;
lfs_getattr(&lfs, "hello/hello", 'D', buffer+18, 9) => LFS_ERR_NOATTR;
lfs_getattr(&lfs, "hello/hello", 'D', buffer+18, 9) => 0;
memcmp(buffer, "fffffffff", 9) => 0;
memcmp(buffer+9, "ccccc\0\0\0\0", 9) => 0;
memcmp(buffer+18, "\0\0\0\0\0\0\0\0\0", 9) => 0;