91 lines
2.6 KiB
Nim
91 lines
2.6 KiB
Nim
# nimbus-eth1
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# Copyright (c) 2023-2024 Status Research & Development GmbH
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# Licensed under either of
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# * Apache License, version 2.0, ([LICENSE-APACHE](LICENSE-APACHE) or
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# http://www.apache.org/licenses/LICENSE-2.0)
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# * MIT license ([LICENSE-MIT](LICENSE-MIT) or
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# http://opensource.org/licenses/MIT)
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# at your option. This file may not be copied, modified, or distributed
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# except according to those terms.
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## Rocks DB store data record
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## ==========================
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{.push raises: [].}
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import
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eth/common,
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rocksdb,
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results,
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../../kvt_desc,
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./rdb_desc
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const
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extraTraceMessages = false
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## Enable additional logging noise
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when extraTraceMessages:
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import
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chronicles,
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stew/byteutils
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logScope:
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topics = "kvt-rocksdb"
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# ------------------------------------------------------------------------------
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# Private helpers
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# ------------------------------------------------------------------------------
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proc disposeSession(rdb: var RdbInst) =
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rdb.session.close()
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rdb.session = WriteBatchRef(nil)
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when extraTraceMessages:
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proc `$`(a: Blob): string =
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a.toHex
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# ------------------------------------------------------------------------------
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# Public functions
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# ------------------------------------------------------------------------------
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proc begin*(rdb: var RdbInst) =
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if rdb.session.isNil:
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rdb.session = rdb.baseDb.openWriteBatch()
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proc rollback*(rdb: var RdbInst) =
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if not rdb.session.isClosed():
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rdb.disposeSession()
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proc commit*(rdb: var RdbInst): Result[void,(KvtError,string)] =
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if not rdb.session.isClosed():
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defer: rdb.disposeSession()
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rdb.baseDb.write(rdb.session).isOkOr:
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const errSym = RdbBeDriverWriteError
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when extraTraceMessages:
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trace logTxt "commit", error=errSym, info=error
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return err((errSym,error))
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ok()
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proc put*(
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rdb: RdbInst;
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data: openArray[(Blob,Blob)];
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): Result[void,(Blob,KvtError,string)] =
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for (key,val) in data:
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if val.len == 0:
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rdb.session.delete(key, $KvtGeneric).isOkOr:
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const errSym = RdbBeDriverDelError
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when extraTraceMessages:
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trace logTxt "del", key, error=errSym, info=error
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return err((key,errSym,error))
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else:
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rdb.session.put(key, val, $KvtGeneric).isOkOr:
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const errSym = RdbBeDriverPutError
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when extraTraceMessages:
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trace logTxt "put", key, error=errSym, info=error
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return err((key,errSym,error))
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ok()
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# ------------------------------------------------------------------------------
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# End
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# ------------------------------------------------------------------------------
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