66 lines
2.1 KiB
Nim
66 lines
2.1 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_desc/aristo_types_backend
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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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AristoBackendType* = enum
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BackendNone ## For providing backend-less constructor
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BackendMemory
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BackendRocksDB
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AristoTypedBackendRef* = ref object of AristoBackendRef
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kind*: AristoBackendType ## 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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when verifyIxId:
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txId: uint ## Transaction ID (for debugging)
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AristoStorageType* = enum
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## Storage types, key prefix
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IdgPfx = 0 ## ID generator
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VtxPfx = 1 ## Vertex data
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KeyPfx = 2 ## Key/hash data
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# ------------------------------------------------------------------------------
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# Public helpers
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# ------------------------------------------------------------------------------
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proc beginSession*(hdl: TypedPutHdlRef; db: AristoTypedBackendRef) =
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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: AristoTypedBackendRef) =
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when verifyIxId:
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doAssert db.txId == hdl.txId
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proc finishSession*(hdl: TypedPutHdlRef; db: AristoTypedBackendRef) =
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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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