github.com/containerd/nerdctl/v2@v2.0.0-beta.5.0.20240520001846-b5758f54fa28/pkg/consoleutil/consoleutil_windows.go (about) 1 /* 2 Copyright The containerd Authors. 3 4 Licensed under the Apache License, Version 2.0 (the "License"); 5 you may not use this file except in compliance with the License. 6 You may obtain a copy of the License at 7 8 http://www.apache.org/licenses/LICENSE-2.0 9 10 Unless required by applicable law or agreed to in writing, software 11 distributed under the License is distributed on an "AS IS" BASIS, 12 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 See the License for the specific language governing permissions and 14 limitations under the License. 15 */ 16 17 package consoleutil 18 19 import ( 20 gocontext "context" 21 "time" 22 23 "github.com/containerd/console" 24 "github.com/containerd/log" 25 ) 26 27 // HandleConsoleResize resizes the console. 28 // From https://github.com/containerd/containerd/blob/v1.7.0-rc.2/cmd/ctr/commands/tasks/tasks_windows.go#L34-L61 29 func HandleConsoleResize(ctx gocontext.Context, task resizer, con console.Console) error { 30 // do an initial resize of the console 31 size, err := con.Size() 32 if err != nil { 33 return err 34 } 35 go func() { 36 prevSize := size 37 for { 38 time.Sleep(time.Millisecond * 250) 39 40 size, err := con.Size() 41 if err != nil { 42 log.G(ctx).WithError(err).Error("get pty size") 43 continue 44 } 45 46 if size.Width != prevSize.Width || size.Height != prevSize.Height { 47 if err := task.Resize(ctx, uint32(size.Width), uint32(size.Height)); err != nil { 48 log.G(ctx).WithError(err).Error("resize pty") 49 } 50 prevSize = size 51 } 52 } 53 }() 54 return nil 55 }