fix: slot length is a float

Signed-off-by: Chris Gianelloni <[email protected]>

Author: wolf31o2

cmd/gouroboros/query.go

@@ -140,7 +140,7 @@ func testQuery(f *globalFlags) {
 		fmt.Printf("era-history:\n")
 		for eraId, era := range eraHistory {
 			fmt.Printf(
-				"id = %d, begin slot/epoch = %d/%d, end slot/epoch = %d/%d, epoch length = %d, slot length (ms) = %d, slots per KES period = %d\n",
+				"id = %d, begin slot/epoch = %d/%d, end slot/epoch = %d/%d, epoch length = %d, slot length (ms) = %f, slots per KES period = %d\n",
 				eraId,
 				era.Begin.SlotNo,
 				era.Begin.EpochNo,

ledger/shelley/genesis.go

@@ -1,4 +1,4 @@
-// Copyright 2024 Blink Labs Software
+// Copyright 2025 Blink Labs Software
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
@@ -35,7 +35,7 @@ type ShelleyGenesis struct {
 	EpochLength        int                          `json:"epochLength"`
 	SlotsPerKESPeriod  int                          `json:"slotsPerKESPeriod"`
 	MaxKESEvolutions   int                          `json:"maxKESEvolutions"`
-	SlotLength         int                          `json:"slotLength"`
+	SlotLength         float32                      `json:"slotLength"`
 	UpdateQuorum       int                          `json:"updateQuorum"`
 	MaxLovelaceSupply  uint64                       `json:"maxLovelaceSupply"`
 	ProtocolParameters ShelleyGenesisProtocolParams `json:"protocolParams"`

ledger/shelley/genesis_test.go

@@ -1,4 +1,4 @@
-// Copyright 2024 Blink Labs Software
+// Copyright 2025 Blink Labs Software
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.

protocol/localstatequery/client_test.go

@@ -302,7 +302,7 @@ func TestGenesisConfigJSON(t *testing.T) {
 		EpochLength:       432000,
 		SlotsPerKESPeriod: 129600,
 		MaxKESEvolutions:  62,
-		SlotLength:        1,
+		SlotLength:        0.1,
 		UpdateQuorum:      5,
 		MaxLovelaceSupply: 45000000000000000,
 		ProtocolParams: localstatequery.GenesisConfigResultProtocolParameters{

protocol/localstatequery/queries.go

@@ -1,4 +1,4 @@
-// Copyright 2023 Blink Labs Software
+// Copyright 2025 Blink Labs Software
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
@@ -495,7 +495,7 @@ type eraHistoryResultParams struct {
 	// Tells the CBOR decoder to convert to/from a struct and a CBOR array
 	_                 struct{} `cbor:",toarray"`
 	EpochLength       int
-	SlotLength        int
+	SlotLength        float32
 	SlotsPerKESPeriod struct {
 		// Tells the CBOR decoder to convert to/from a struct and a CBOR array
 		_      struct{} `cbor:",toarray"`
@@ -623,7 +623,7 @@ type GenesisConfigResult struct {
 	EpochLength       int
 	SlotsPerKESPeriod int
 	MaxKESEvolutions  int
-	SlotLength        int
+	SlotLength        float32
 	UpdateQuorum      int
 	MaxLovelaceSupply int64
 	ProtocolParams    GenesisConfigResultProtocolParameters