This commit is contained in:
Raycho Mukelov 2023-10-28 21:16:21 +03:00
parent ebfa89b0a7
commit 40c8ac80c1
1 changed files with 5 additions and 1 deletions

View File

@ -13,8 +13,8 @@ import types
type
# Node events
EventType = enum
# Node events
NodeStart, NodeStop, NodeTick, NodeStepDown, NodeStepDownToCandidate, NodeStepDownToFollower, NodeStepDownToLeader,
NodeStepDownToShutdown, VotingTimeout, ElectionTimeout, HeartbeatTimeout, HeartbeatReceived, HeartbeatSent, AppendEntriesReceived,
AppendEntriesSent, RequestVoteReceived, RequestVoteSent, RequestVoteGranted, RequestVoteDenied, ClientRequestReceived,
@ -23,15 +23,19 @@ type
# Define callback to use with Terminals. Node states are updated/read in-place in the node object
ConsensusFSMCallbackType*[NodeType] = proc(node: NodeType) {.gcsafe.}
# Define Non-Terminals as a (unique) tuples of the internal state and a sequence of callbacks
NonTerminalSymbol*[NodeType] = (NodeType, seq[ConsensusFSMCallbackType[NodeType]])
# Define logical functions (conditions) computed from our NodeType etc. (Truth Table)
LogicalFunctionConditionValueType* = bool
LogicalFunctionCondition*[EventType, NodeTytpe, RaftMessageBase] = proc(e: EventType, n: NodeTytpe, msg: Option[RaftMessageBase]): bool
LogicalFunctionConditionsLUT*[EventType, NodeType, RaftMessageBase] = Table[(EventType, NodeType), LogicalFunctionCondition[EventType, NodeType, Option[RaftMessageBase]]]
# Define Terminals as a tuple of a Event and a sequence of logical functions (conditions) and their respective values computed from NodeType, NodeTytpe and RaftMessageBase
# (kind of Truth Table)
TerminalSymbol*[EventType, NodeType, RaftMessageBase] = (EventType, seq[LogicalFunctionConditionValueType])
# Define State Transition Rules LUT of the form ( NonTerminal -> Terminal ) -> NonTerminal )
StateTransitionsRulesLUT*[NodeType, EventType, RaftMessageBase] = Table[
(NonTerminalSymbol[NodeType], TerminalSymbol[NodeType, EventType, RaftMessageBase]),