1 // Copyright 2018 Google LLC. All Rights Reserved. 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); 4 // you may not use this file except in compliance with the License. 5 // You may obtain a copy of the License at 6 // 7 // http://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 // See the License for the specific language governing permissions and 13 // limitations under the License. 14 15 package core 16 17 import ( 18 "context" 19 "sync" 20 ) 21 22 // RunMigration migrates data from a number of CT logs to Trillian. Each log's 23 // migration is coordinated by the corresponding Controller. This function 24 // terminates when all Controllers are done (possibly with an error, or as a 25 // result of canceling the passed in context). 26 func RunMigration(ctx context.Context, ctrls []*Controller) { 27 var wg sync.WaitGroup 28 for _, ctrl := range ctrls { 29 wg.Add(1) 30 go func(ctrl *Controller) { 31 defer wg.Done() 32 ctrl.RunWhenMasterWithRestarts(ctx) 33 }(ctrl) 34 } 35 wg.Wait() 36 } 37