Move runtime to core/runtime

Signed-off-by: Derek McGowan <derek@mcg.dev>

core/runtime/v2/process.go

@@ -0,0 +1,159 @@
+/*
+   Copyright The containerd Authors.
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+*/
+
+package v2
+
+import (
+	"context"
+	"errors"
+
+	task "github.com/containerd/containerd/v2/api/runtime/task/v3"
+	tasktypes "github.com/containerd/containerd/v2/api/types/task"
+	"github.com/containerd/containerd/v2/core/runtime"
+	"github.com/containerd/containerd/v2/pkg/errdefs"
+	"github.com/containerd/containerd/v2/protobuf"
+	"github.com/containerd/ttrpc"
+)
+
+type process struct {
+	id   string
+	shim *shimTask
+}
+
+func (p *process) ID() string {
+	return p.id
+}
+
+func (p *process) Kill(ctx context.Context, signal uint32, _ bool) error {
+	_, err := p.shim.task.Kill(ctx, &task.KillRequest{
+		Signal: signal,
+		ID:     p.shim.ID(),
+		ExecID: p.id,
+	})
+	if err != nil {
+		return errdefs.FromGRPC(err)
+	}
+	return nil
+}
+
+func statusFromProto(from tasktypes.Status) runtime.Status {
+	var status runtime.Status
+	switch from {
+	case tasktypes.Status_CREATED:
+		status = runtime.CreatedStatus
+	case tasktypes.Status_RUNNING:
+		status = runtime.RunningStatus
+	case tasktypes.Status_STOPPED:
+		status = runtime.StoppedStatus
+	case tasktypes.Status_PAUSED:
+		status = runtime.PausedStatus
+	case tasktypes.Status_PAUSING:
+		status = runtime.PausingStatus
+	}
+	return status
+}
+
+func (p *process) State(ctx context.Context) (runtime.State, error) {
+	response, err := p.shim.task.State(ctx, &task.StateRequest{
+		ID:     p.shim.ID(),
+		ExecID: p.id,
+	})
+	if err != nil {
+		if !errors.Is(err, ttrpc.ErrClosed) {
+			return runtime.State{}, errdefs.FromGRPC(err)
+		}
+		return runtime.State{}, errdefs.ErrNotFound
+	}
+	return runtime.State{
+		Pid:        response.Pid,
+		Status:     statusFromProto(response.Status),
+		Stdin:      response.Stdin,
+		Stdout:     response.Stdout,
+		Stderr:     response.Stderr,
+		Terminal:   response.Terminal,
+		ExitStatus: response.ExitStatus,
+		ExitedAt:   protobuf.FromTimestamp(response.ExitedAt),
+	}, nil
+}
+
+// ResizePty changes the side of the process's PTY to the provided width and height
+func (p *process) ResizePty(ctx context.Context, size runtime.ConsoleSize) error {
+	_, err := p.shim.task.ResizePty(ctx, &task.ResizePtyRequest{
+		ID:     p.shim.ID(),
+		ExecID: p.id,
+		Width:  size.Width,
+		Height: size.Height,
+	})
+	if err != nil {
+		return errdefs.FromGRPC(err)
+	}
+	return nil
+}
+
+// CloseIO closes the provided IO pipe for the process
+func (p *process) CloseIO(ctx context.Context) error {
+	_, err := p.shim.task.CloseIO(ctx, &task.CloseIORequest{
+		ID:     p.shim.ID(),
+		ExecID: p.id,
+		Stdin:  true,
+	})
+	if err != nil {
+		return errdefs.FromGRPC(err)
+	}
+	return nil
+}
+
+// Start the process
+func (p *process) Start(ctx context.Context) error {
+	_, err := p.shim.task.Start(ctx, &task.StartRequest{
+		ID:     p.shim.ID(),
+		ExecID: p.id,
+	})
+	if err != nil {
+		return errdefs.FromGRPC(err)
+	}
+	return nil
+}
+
+// Wait on the process to exit and return the exit status and timestamp
+func (p *process) Wait(ctx context.Context) (*runtime.Exit, error) {
+	response, err := p.shim.task.Wait(ctx, &task.WaitRequest{
+		ID:     p.shim.ID(),
+		ExecID: p.id,
+	})
+	if err != nil {
+		return nil, errdefs.FromGRPC(err)
+	}
+	return &runtime.Exit{
+		Timestamp: protobuf.FromTimestamp(response.ExitedAt),
+		Status:    response.ExitStatus,
+	}, nil
+}
+
+func (p *process) Delete(ctx context.Context) (*runtime.Exit, error) {
+	response, err := p.shim.task.Delete(ctx, &task.DeleteRequest{
+		ID:     p.shim.ID(),
+		ExecID: p.id,
+	})
+	if err != nil {
+		return nil, errdefs.FromGRPC(err)
+	}
+	return &runtime.Exit{
+		Status:    response.ExitStatus,
+		Timestamp: protobuf.FromTimestamp(response.ExitedAt),
+		Pid:       response.Pid,
+	}, nil
+}