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blocks.store.buffer

Buffer stores provide logical block storage which uses two backing stores to implement a buffer. New blocks are written to the buffer store, which can be flushed to write all of the blocks to the primary store. Reads return a unified view of the existing and buffered blocks.

Buffer stores provide logical block storage which uses two backing stores to
implement a buffer. New blocks are written to the _buffer_ store, which can
be flushed to write all of the blocks to the _primary_ store. Reads return a
unified view of the existing and buffered blocks.
raw docstring

buffer-block-storeclj

(buffer-block-store & {:as opts})

Create a new buffering block store.

  • :buffer Block store to use for new writes.
  • :primary Block store to use for flushed blocks.
  • :predicate (optional) A predicate function which should return false for blocks which should not be buffered; instead, they will be written directly to the primary store.
Create a new buffering block store.

- `:buffer`
  Block store to use for new writes.
- `:primary`
  Block store to use for flushed blocks.
- `:predicate` (optional)
  A predicate function which should return false for blocks which should not
  be buffered; instead, they will be written directly to the primary store.
sourceraw docstring

clear!clj

(clear! store)

Remove all blocks from the buffer. Returns a deferred which yields a summary of the deleted blocks.

Remove all blocks from the buffer. Returns a deferred which yields a summary
of the deleted blocks.
sourceraw docstring

flush!clj

(flush! store)

Flush the store, writing all buffered blocks to the primary store. Returns a deferred which yields a summary of the flushed blocks.

Flush the store, writing all buffered blocks to the primary store. Returns a
deferred which yields a summary of the flushed blocks.
sourceraw docstring

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