Support rocksdb backed Hypercore #182
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chm-diederichs
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* make sure we close all opened cores * snapshots should only have one open session * crypto does not live on core anymore * update store to pass preload promise * update wakeup
* add simple append test * add simple reorg test * add memory based store session * only memory view backed sessions are writable * apply writes to a memory batch, which is flushed after * get info from memory views during apply * emit truncate events on reorg * truncate events emit length * getWriterByKey should use applySystem by default * migrate system before making pre ff gets * derive key from memview core * reduce the number of appends in ff tests * pass system to force reset and length to update batch * pass apply system to version check * snapshots should detach before hc state is mutated * always close apply store * close writable core session immediately * bump BootRecord version to v1 * wakeup add is now async because of user data api * hc API is now createUserDataStream * set namespace on original store * enable corestore based tests * set corestore namespace in openPreSystem
* move wakeup extension onto base * views are just hypercores * kill pendingIndexedLength * remove namespace session * initialise indexedLength on open and on ff * applyUpdate returns indexedLength * use getSystemCore method * flush indexes to lengths from indexed system * undo computes checkout from indexed system info * implement autocore catchup and migrate using moveTo * explicitly pass lengths that were previously inferred * flush returns early if nothing indexed * add helper for indexed info * review by @mafintosh * view sessions should never be writable * migrate event emitted from hypercore * rename flushedLength to signedLength * update tests
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* make flushing writable batches atomic * flushing signed cores is atomic * rename atomizer to atom * userData is flushed atomically with updates * add viewInfo method and refactor undoAll * view migration is now atomic * clearer append values in upgrade test * applying fast forward is now atomic * if bootstrap is writable thats always the local core * defer closing used cores until closure until we have a good flush api * remove dead code * always teardown atom * ensure main fork is used for signatures * test that the fork is bumped on views --------- Co-authored-by: Mathias Buus <[email protected]>
* do not infill on fast forward * rename option to shallow
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