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All Projects → FedericoCeratto → nim-lmdb

FedericoCeratto / nim-lmdb

Licence: other
Nim LMDB wrapper

Programming Languages

nim
578 projects

Labels

wrapperdatabasekey-valuelmdblocal-databasenim-lang

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Nim LMDB

badge tags License CircleCI

Nim wrapper for the Symas LMDB library

"…​with only 32KB of object code, LMDB may seem tiny. But it’s the right 32KB." - from the LMDB home page.

More documentation: upstream docs - wikipedia page - exploring LMDB

Features

  • Lightweight and ultra fast

  • nim doc documentation

  • Basic functional tests and benchmarks

  • Tested on Linux

Usage

# Development library:
nimble install lmdb

# Runtime dependency:
sudo apt-get install liblmdb0
import lmdb

# create dbenv, transaction and a dbi
let dbenv = newLMDBEnv("./testdb")
let txn = dbenv.newTxn()
let dbi = txn.dbiOpen(nil, 0)

txn.put(dbi, "foo", "value")
let g = txn.get(dbi, "foo")
txn.del(dbi, "foo", "value")

# commit or abort transaction
txn.commit() # or txn.abort()

# close dbi and env
dbenv.close(dbi)
dbenv.envClose()

Also see tests/functional.nim for more examples.

Contributing

Testing and PRs are welcome.

Note that the project description data, including the texts, logos, images, and/or trademarks, for each open source project belongs to its rightful owner. If you wish to add or remove any projects, please contact us at [email protected].