62 lines
1.9 KiB
Nim
62 lines
1.9 KiB
Nim
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# nimbus-eth1
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# Copyright (c) 2021 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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{.push raises: [].}
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import
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../../aristo/aristo_init/init_common,
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../kvt_desc,
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../kvt_desc/desc_backend
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export
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BackendType # borrowed from Aristo
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const
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verifyIxId = true # and false
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## Enforce session tracking
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type
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TypedBackendRef* = ref object of BackendRef
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beKind*: BackendType ## Backend type identifier
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when verifyIxId:
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txGen: uint ## Transaction ID generator (for debugging)
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txId: uint ## Active transaction ID (for debugging)
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TypedPutHdlRef* = ref object of PutHdlRef
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error*: KvtError ## Track error while collecting transaction
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when verifyIxId:
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txId: uint ## Transaction ID (for debugging)
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# ------------------------------------------------------------------------------
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# Public helpers
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# ------------------------------------------------------------------------------
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proc beginSession*(hdl: TypedPutHdlRef; db: TypedBackendRef) =
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when verifyIxId:
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doAssert db.txId == 0
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if db.txGen == 0:
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db.txGen = 1
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db.txId = db.txGen
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hdl.txId = db.txGen
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db.txGen.inc
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proc verifySession*(hdl: TypedPutHdlRef; db: TypedBackendRef) =
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when verifyIxId:
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doAssert db.txId == hdl.txId
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proc finishSession*(hdl: TypedPutHdlRef; db: TypedBackendRef) =
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when verifyIxId:
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doAssert db.txId == hdl.txId
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db.txId = 0
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# ------------------------------------------------------------------------------
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# End
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# ------------------------------------------------------------------------------
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