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FreeList

featherdb_storage

Struct FreeList 

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pub struct FreeList { /* private fields */ }
Expand description

Bitmap-based free page tracking

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impl FreeList

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pub fn new(root_page: PageId) -> Self

Create a new free list

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pub fn allocate(&mut self, buffer_pool: &BufferPool) -> Result<PageId>

Allocate a new page

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pub fn free(&mut self, page_id: PageId, buffer_pool: &BufferPool) -> Result<()>

Free a page

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pub fn is_allocated( &mut self, page_id: PageId, buffer_pool: &BufferPool, ) -> Result<bool>

Check if a page is allocated

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pub fn allocated_count(&mut self, buffer_pool: &BufferPool) -> Result<usize>

Get the number of allocated pages

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pub fn free_count(&mut self, buffer_pool: &BufferPool) -> Result<usize>

Get the number of free pages

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