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write_overflow_chain

sqlrite::sql::pager::overflow

Function write_overflow_chain 

Source 
pub fn write_overflow_chain(
    pager: &mut Pager,
    bytes: &[u8],
    alloc: &mut PageAllocator,
) -> Result<u32>
Expand description

Writes bytes into a chain of Overflow-typed pages, drawing each page number from the supplied [PageAllocator]. Returns the page number of the first link in the chain (the value to record in the OverflowRef cell on the owning leaf).

Pages no longer have to be consecutive — the chain is followed by next_page pointers, and the allocator may hand out pages from a freelist or preferred pool that aren’t sequential.