| // +build !windows |
| |
| package shim |
| |
| import ( |
| "context" |
| "io" |
| "time" |
| |
| "github.com/containerd/console" |
| "github.com/pkg/errors" |
| ) |
| |
| type stdio struct { |
| stdin string |
| stdout string |
| stderr string |
| terminal bool |
| } |
| |
| func (s stdio) isNull() bool { |
| return s.stdin == "" && s.stdout == "" && s.stderr == "" |
| } |
| |
| type process interface { |
| processState |
| |
| // ID returns the id for the process |
| ID() string |
| // Pid returns the pid for the process |
| Pid() int |
| // ExitStatus returns the exit status |
| ExitStatus() int |
| // ExitedAt is the time the process exited |
| ExitedAt() time.Time |
| // Stdin returns the process STDIN |
| Stdin() io.Closer |
| // Stdio returns io information for the container |
| Stdio() stdio |
| // Status returns the process status |
| Status(context.Context) (string, error) |
| // Wait blocks until the process has exited |
| Wait() |
| } |
| |
| type processState interface { |
| // Resize resizes the process console |
| Resize(ws console.WinSize) error |
| // Start execution of the process |
| Start(context.Context) error |
| // Delete deletes the process and its resourcess |
| Delete(context.Context) error |
| // Kill kills the process |
| Kill(context.Context, uint32, bool) error |
| // SetExited sets the exit status for the process |
| SetExited(status int) |
| } |
| |
| func stateName(v interface{}) string { |
| switch v.(type) { |
| case *runningState, *execRunningState: |
| return "running" |
| case *createdState, *execCreatedState, *createdCheckpointState: |
| return "created" |
| case *pausedState: |
| return "paused" |
| case *deletedState: |
| return "deleted" |
| case *stoppedState: |
| return "stopped" |
| } |
| panic(errors.Errorf("invalid state %v", v)) |
| } |