Remove unused nim files.
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adc188cd89
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5bc59956c2
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import stew/results
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type
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ADbTResult*[T] = Result[T, string]
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AbstractDbTransaction* = ref object
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obj: RootRef
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commitProc: AbstractDbTransactionCommitProc
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rollbackProc: AbstractDbTransactionRollbackProc
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putProc: AbstractDbTransactionPutProc
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delProc: AbstractDbTransactionDelProc
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AbstractDbTransactionCommitProc = proc (t: RootRef): ADbTResult[void] {.nimcall, gcsafe, raises: [Defect].}
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AbstractDbTransactionRollbackProc = proc (t: RootRef): ADbTResult[void] {.nimcall, gcsafe, raises: [Defect].}
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AbstractDbTransactionPutProc = proc (db: RootRef, key, val: openArray[byte]): ADbTResult[void] {.nimcall, gcsafe, raises: [Defect].}
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AbstractDbTransactionDelProc = proc (db: RootRef, key: openArray[byte]): ADbTResult[void] {.nimcall, gcsafe, raises: [Defect].}
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proc abstractTransactionCommitImpl[T](x: RootRef): ADbTResult[void] =
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mixin commit
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commit(T(x))
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proc abstractTransactionRollbackImpl[T](x: RootRef): ADbTResult[void] =
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mixin rollback
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rollback(T(x))
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proc abstractTransactionPutImpl[T](x: RootRef, key, val: openArray[byte]): ADbTResult[void] =
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mixin put
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put(T(x), key, val)
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proc abstractTransactionDelImpl[T](x: RootRef, key: openArray[byte]): ADbTResult[void] =
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mixin del
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del(T(x), key)
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proc init*[T: RootRef](_:type AbstractDbTransaction, x: T): AbstractDbTransaction =
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mixin commit, rollback, put, del
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new result
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result.obj = x
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result.commitProc = abstractTransactionCommitImpl[T]
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result.rollbackProc = abstractTransactionRollbackImpl[T]
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result.putProc = abstractTransactionPutImpl[T]
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result.delProc = abstractTransactionDelImpl[T]
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proc commit*(t: AbstractDbTransaction): ADbTResult[void] =
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t.commitProc(t.obj)
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proc rollback*(t: AbstractDbTransaction): ADbTResult[void] =
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t.rollbackProc(t.obj)
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proc put*(t: AbstractDbTransaction, key, val: openArray[byte]): ADbTResult[void] =
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t.putProc(t.obj, key, val)
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proc del*(t: AbstractDbTransaction, key: openArray[byte]): ADbTResult[void] =
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t.delProc(t.obj, key)
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@ -1,231 +0,0 @@
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{.push raises: [].}
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import std/os
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import stew/results
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import ./abstract_db_transaction
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import nimdbx/[Database, CRUD, Collection, Transaction, Cursor, Error, Index, Collatable, Data]
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export Database, CRUD, Collection, Transaction, Cursor, Error, Index, Collatable, Data
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type
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MDBXStoreRef* = ref object of RootObj
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database* {.requiresInit.}: Database
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raftNodeData* {.requiresInit.}: Collection
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MDBXTransaction* = ref object of RootObj
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transaction: CollectionTransaction
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const
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MaxFileSize = 1024 * 1024 * 400 #r: 100MB (MDBX default is 400 MB)
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# ----------------------------------------------------------------------------------------
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# MDBX exception handling helper templates
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# ----------------------------------------------------------------------------------------
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template handleEx(body: untyped) =
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## Handle and convert MDBX exceptions to Result
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try:
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body
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except MDBXError as e:
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return err(e.msg)
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except OSError as e:
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return err(e.msg)
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except CatchableError as e:
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return err(e.msg)
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template handleExEx(body: untyped) =
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## Handle and convert MDBX exceptions to Result
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try:
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body
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except MDBXError as e:
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return err(e.msg)
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except OSError as e:
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return err(e.msg)
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except CatchableError as e:
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return err(e.msg)
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except Exception as e:
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return err(e.msg)
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# ----------------------------------------------------------------------------------------
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# MDBX transactions methods
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# ----------------------------------------------------------------------------------------
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proc commit*(t: MDBXTransaction): ADbTResult[void] =
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handleEx():
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t.transaction.commit()
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ok()
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proc rollback*(t: MDBXTransaction): ADbTResult[void] =
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handleEx():
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t.transaction.abort()
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ok()
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proc beginDbTransaction*(db: MDBXStoreRef): ADbTResult[MDBXTransaction] =
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if db.raftNodeData != nil:
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handleEx():
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ok(MDBXTransaction(transaction: db.raftNodeData.beginTransaction()))
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else:
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err("MDBXStoreRef.raftNodesData is nil")
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proc put*(t: MDBXTransaction, key, value: openArray[byte]): ADbTResult[void] =
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handleExEx():
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t.transaction.put(asData(key), asData(value))
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ok()
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proc del*(t: MDBXTransaction, key: openArray[byte]): ADbTResult[void] =
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handleExEx():
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t.transaction.del(asData(key))
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ok()
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# ----------------------------------------------------------------------------------------
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# MDBX transactions convenience templates
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# ----------------------------------------------------------------------------------------
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template checkDbChainsNotNil(db: MDBXStoreRef, body: untyped) =
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## Check if db.raftNodesData is not nil and execute the body
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## if it is not nil. Otherwise, raise an assert.
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##
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if db.raftNodeData != nil:
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body
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else:
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raiseAssert "MDBXStoreRef.raftNodesData is nil"
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template withDbSnapshot*(db: MDBXStoreRef, body: untyped) =
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## Create an MDBX snapshot and execute the body providing
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## a snapshot variable cs for the body statements to operate on.
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## Finish the snapshot after the body is executed.
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##
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##
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checkDbChainsNotNil(db):
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handleEx():
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let cs {.inject.} = db.raftNodeData.beginSnapshot()
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defer: cs.finish()
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body
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template withDbTransaction*(db: MDBXStoreRef, body: untyped) =
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## Create an MDBX transaction and execute the body and inject
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## a transaction variable dbTransaction in the body statements.
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## Handle MDBX errors and abort the transaction on error.
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##
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checkDbChainsNotNil(db):
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handleEx():
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var dbTransaction {.inject.} = db.raftNodeData.beginTransaction()
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defer: dbTransaction.commit()
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try:
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body
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except MDBXError as e:
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dbTransaction.abort()
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return err(e.msg)
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except OSError as e:
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dbTransaction.abort()
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return err(e.msg)
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except Exception as e:
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dbTransaction.abort()
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return err(e.msg)
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# ------------------------------------------------------------------------------------------
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# MDBX KvStore interface implementation
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# ------------------------------------------------------------------------------------------
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type
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DataProc = proc(data: seq[byte])
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FindProc = proc(data: seq[byte])
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proc get*(db: MDBXStoreRef, key: openArray[byte], onData: DataProc): Result[bool, string] =
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if key.len <= 0:
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return err("mdbx: key cannot be empty on get")
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withDbSnapshot(db):
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let mdbxData = asByteSeq(cs.get(asData(key)))
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if mdbxData.len > 0:
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onData(mdbxData)
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return ok(true)
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else:
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return ok(false)
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proc find*(db: MDBXStoreRef, prefix: openArray[byte], onFind: FindProc): Result[int, string] =
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raiseAssert "Unimplemented"
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proc put*(db: MDBXStoreRef, key, value: openArray[byte]): Result[void, string] =
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if key.len <= 0:
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return err("mdbx: key cannot be empty on get")
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withDbTransaction(db):
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dbTransaction.put(asData(key), asData(value))
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ok()
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proc contains*(db: MDBXStoreRef, key: openArray[byte]): Result[bool, string] =
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if key.len <= 0:
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return err("mdbx: key cannot be empty on get")
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withDbSnapshot(db):
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let mdbxData = asByteSeq(cs.get(asData(key)))
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if mdbxData.len > 0:
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return ok(true)
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else:
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return ok(false)
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proc del*(db: MDBXStoreRef, key: openArray[byte]): Result[bool, string] =
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if key.len <= 0:
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return err("mdbx: key cannot be empty on del")
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withDbTransaction(db):
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let mdbxData = asByteSeq(dbTransaction.get(asData(key)))
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if mdbxData.len > 0:
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dbTransaction.del(asData(key))
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return ok(true)
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else:
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return ok(false)
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proc clear*(db: MDBXStoreRef): Result[bool, string] =
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raiseAssert "Unimplemented"
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proc close*(db: MDBXStoreRef) =
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try:
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db.database.close()
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except MDBXError as e:
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raiseAssert e.msg
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except OSError as e:
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raiseAssert e.msg
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# ------------------------------------------------------------------------------------------
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# .End. MDBX KvStore interface implementation
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# ------------------------------------------------------------------------------------------
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# proc bulkPutSortedData*[KT: ByteArray32 | ByteArray33](db: MDBXStoreRef, keys: openArray[KT], vals: openArray[seq[byte]]): Result[int64] =
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# if keys.len <= 0:
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# return err("mdbx: keys cannot be empty on bulkPutSortedData")
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# if keys.len != vals.len:
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# return err("mdbx: keys and vals must have the same length")
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# withDbTransaction(db):
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# for i in 0 ..< keys.len:
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# dbTransaction.put(asData(keys[i]), asData(vals[i]))
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# return ok(0)
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proc init*(
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T: type MDBXStoreRef, basePath: string, name: string,
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readOnly = false): Result[T, string] =
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let
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dataDir = basePath / name / "data"
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backupsDir = basePath / name / "backups" # Do we need that in case of MDBX? Should discuss this with @zah
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try:
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createDir(dataDir)
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createDir(backupsDir)
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except OSError as e:
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return err(e.msg)
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except IOError as e:
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return err(e.msg)
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var
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mdbxFlags = {Exclusive, SafeNoSync}
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if readOnly:
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mdbxFlags.incl(ReadOnly)
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handleEx():
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let
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db = openDatabase(dataDir, flags=mdbxFlags, maxFileSize=MaxFileSize)
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raftNodeData = createCollection(db, "raftNodeData", StringKeys, BlobValues)
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ok(T(database: db, raftNodeData: raftNodeData))
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@ -1,8 +0,0 @@
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# nim-raft
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# Copyright (c) 2023 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))
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# * MIT license ([LICENSE-MIT](LICENSE-MIT))
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# at your option.
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# This file may not be copied, modified, or distributed except according to
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# those terms.
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@ -1,8 +0,0 @@
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# nim-raft
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# Copyright (c) 2023 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))
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# * MIT license ([LICENSE-MIT](LICENSE-MIT))
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# at your option.
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# This file may not be copied, modified, or distributed except according to
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# those terms.
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@ -1,8 +0,0 @@
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# nim-raft
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# Copyright (c) 2023 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))
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# * MIT license ([LICENSE-MIT](LICENSE-MIT))
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# at your option.
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# This file may not be copied, modified, or distributed except according to
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# those terms.
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@ -11,7 +11,6 @@ import types
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import protocol
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import consensus_module
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import log_ops
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import ../db/kvstore_mdbx
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import chronicles
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import std/random
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