Merge pull request #35 from Concordium/finalization-parameters

Finalization parameters added to the new grpc api

v2/concordium/types.proto

@@ -1323,6 +1323,17 @@ message TimeoutParameters {
   Ratio timeout_decrease = 3;
 }
 
+// Finalization committee parameters used from protocol version 6
+message FinalizationCommitteeParameters {
+  // The minimum size of a finalization committee before `finalizer_relative_stake_threshold` takes effect.
+  uint32 minimum_finalizers = 1;
+  // The maximum size of a finalization committee.
+  uint32 maximum_finalizers = 2;
+  // The threshold for determining the stake required for being eligible the finalization committee.
+  // The amount is given by `total stake in pools * finalizer_relative_stake_threshold`
+  AmountFraction finalizer_relative_stake_threshold = 3;
+}
+
 // Parameters for the consensus protocol used from protocol version 6.
 message ConsensusParametersV1 {
   // Parameters controlling round timeouts.
@@ -1709,6 +1720,8 @@ message UpdatePayload {
     Duration min_block_time_update = 20;
     // The block energy limit was updated (chain parameters version 2).
     Energy block_energy_limit_update = 21;
+    // Finalization committee parameters (chain parameters version 2).
+    FinalizationCommitteeParameters finalization_committee_parameters_update = 22;
   }
 }
 
@@ -1802,6 +1815,7 @@ enum UpdateType {
     UPDATE_TIMEOUT_PARAMETERS = 16;
     UPDATE_MIN_BLOCK_TIME = 17;
     UPDATE_BLOCK_ENERGY_LIMIT = 18;
+    UPDATE_FINALIZATION_COMMITTEE_PARAMETERS = 19;
 }
 
 // The type of transaction.
@@ -2435,6 +2449,8 @@ message PendingUpdate {
     Duration min_block_time = 23;
     // Updates to the block energy limit for chain parameters version 2.
     Energy block_energy_limit = 24;
+    // Updates to the finalization committee for for chain parameters version 2.
+    FinalizationCommitteeParameters finalization_committee_parameters = 25;
   }
 }
 
@@ -2472,6 +2488,14 @@ message NextUpdateSequenceNumbers {
   SequenceNumber cooldown_parameters = 15;
   // Updates to time parameters for chain parameters version 1 introduced in protocol version 4.
   SequenceNumber time_parameters = 16;
+  // Updates to the timeout parameters
+  SequenceNumber timeout_parameters = 17;
+  // Updates to the the minimum time between blocks for chain parameters version 2.
+  SequenceNumber min_block_time = 18;
+  // Updates to the block energy limit for chain parameters version 2.
+  SequenceNumber block_energy_limit = 19;
+  // Updates to the finalization committee parameters
+  SequenceNumber finalization_committee_parameters = 20;
 }
 
 // A request to send a new block item to the chain.
@@ -2970,9 +2994,10 @@ message ChainParametersV2 {
   HigherLevelKeys level1_keys = 13;
   // Keys allowed to do parameter updates.
   AuthorizationsV1 level2_keys = 14;
+  // Finalization committee parameters
+  FinalizationCommitteeParameters finalization_committee_parameters = 15;
 }
 
-
 // Chain parameters.
 message ChainParameters {
   oneof parameters {