58 lines
1.8 KiB
Nim
58 lines
1.8 KiB
Nim
# 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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import basic_timers
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import basic_state_machine
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import std/tables
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import std/random
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export raft_api
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type
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BasicRaftNode* = RaftNode[SmCommand, SmState]
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BasicRaftCluster* = ref object
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nodes*: Table[RaftNodeId, BasicRaftNode]
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proc BasicRaftClusterRaftMessageSendCallbackCreate(cluster: BasicRaftCluster): RaftMessageSendCallback =
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proc (msg: RaftMessageBase): Future[RaftMessageResponseBase] {.async, gcsafe.} =
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result = await cluster.nodes[msg.receiverId].RaftNodeMessageDeliver(msg)
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proc BasicRaftClusterStart*(cluster: BasicRaftCluster) =
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for id, node in cluster.nodes:
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RaftNodeStart(node)
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proc BasicRaftClusterGetLeaderId*(cluster: BasicRaftCluster): UUID =
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result = DefaultUUID
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for id, node in cluster.nodes:
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if RaftNodeIsLeader(node):
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return RaftNodeIdGet(node)
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proc BasicRaftClusterClientRequest*(cluster: BasicRaftCluster, req: RaftNodeClientRequest): Future[RaftNodeClientResponse] {.async.} =
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case req.op:
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of rncroRequestSmState:
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var
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nodeId = cluster.nodesIds[BasicRaftClusterGetLeaderId(cluster)]
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result = await cluster.nodes[nodeId].RaftNodeServeClientRequest(req)
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of rncroExecSmCommand:
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discard
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proc BasicRaftClusterInit*(nodesIds: seq[RaftNodeId]): BasicRaftCluster =
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randomize()
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new(result)
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for nodeId in nodesIds:
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var
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peersIds = nodesIds
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peersIds.del(peersIds.find(nodeId))
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result.nodes[nodeId] = BasicRaftNode.new(nodeId, peersIds, BasicRaftClusterRaftMessageSendCallbackCreate(result))
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