Added VERSION_PENDING state for workflows waiting for actor dissemination

Signed-off-by: Albert Callarisa <albert@diagrid.io>

Author: acroca

protos/orchestrator_service.proto

@@ -17,11 +17,6 @@ message TaskRouter {
     optional string targetAppID = 2;
 }
 
-message Version {
-    string name = 1;
-    uint32 number = 2;
-}
-
 message Patches {
     repeated string patches = 1;
 }
@@ -66,6 +61,7 @@ enum OrchestrationStatus {
     ORCHESTRATION_STATUS_TERMINATED = 5;
     ORCHESTRATION_STATUS_PENDING = 6;
     ORCHESTRATION_STATUS_SUSPENDED = 7;
+    ORCHESTRATION_STATUS_VERSION_PENDING = 8;
 }
 
 message ParentInstanceInfo {
@@ -193,6 +189,10 @@ message ExecutionResumedEvent {
     google.protobuf.StringValue input = 1;
 }
 
+message ExecutionVersionPendingEvent {
+    // No payload data
+}
+
 message EntityOperationSignaledEvent {
     string requestId = 1;
     string operation = 2;
@@ -269,6 +269,7 @@ message HistoryEvent {
         EntityLockRequestedEvent entityLockRequested = 27;
         EntityLockGrantedEvent entityLockGranted = 28;
         EntityUnlockSentEvent entityUnlockSent = 29;
+        ExecutionVersionPendingEvent executionVersionPending = 31;
     }
     optional TaskRouter router = 30;
 }
@@ -358,7 +359,9 @@ message OrchestratorResponse {
     // This field is optional. If not set, the service should assume that the orchestrator processed all events.
     google.protobuf.Int32Value numEventsProcessed = 5;
 
-    optional Patches patches = 6;
+    optional string workflowTypeName = 6;
+    optional Patches patches = 7;
+    bool patchMismatch = 8;
 }
 
 message CreateInstanceRequest {

protos/runtime_state.proto

@@ -42,6 +42,7 @@ message OrchestrationRuntimeState {
   bool isSuspended = 13;
 
   google.protobuf.StringValue customStatus = 14;
+  bool isVersionPending = 15;
 }
 
 // OrchestrationRuntimeStateMessage holds an OrchestratorMessage and the target instance ID.