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Add lfs_fs_gc to enable proactive finding of free blocks #875

Merged
merged 5 commits into from
Sep 21, 2023
Merged

Add lfs_fs_gc to enable proactive finding of free blocks #875

merged 5 commits into from
Sep 21, 2023

Commits on Sep 21, 2023

  1. Update lfs_find_free_blocks to match the latest changes.

    @ondrapCZE @geky
    ondrapCZE authored and geky committed Sep 21, 2023
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  2. Move lookahead buffer offset at the first free block if such block do… 

    …esn't exist move it for whole lookahead size.
    @ondrapCZE @geky
    ondrapCZE authored and geky committed Sep 21, 2023
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  3. Added API boilerplate for lfs_fs_findfreeblocks and consistent style 

    This adds the tracing and optional locking for the littlefs API.

Also updated to match the code style, and added LFS_READONLY guards
where necessary.
    @geky
    geky committed Sep 21, 2023
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  4. Extended alloc tests to test some properties of lfs_fs_findfreeblocks 

    - Test that the code actually runs.

- Test that lfs_fs_findfreeblocks does not break block allocations.

- Test that lfs_fs_findfreeblocks does not error when no space is
  available, it should only errors when the block is actually needed.
    @geky
    geky committed Sep 21, 2023
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  5. Renamed lfs_fs_findfreeblocks -> lfs_fs_gc, tweaked documentation 

    The idea is in the future this function may be extended to support other
block janitorial work. In such a case calling this lfs_fs_gc provides a
more general name that can include other operations.

This is currently just wishful thinking, however.
    @geky
    geky committed Sep 21, 2023
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