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Merge pull request #1767 from stevvooe/ttrpc-shim

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linux/shim: reduce memory overhead by using ttrpc
This commit is contained in:
Phil Estes 2017-11-28 12:43:41 -05:00 committed by GitHub
commit 2556c594ec
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GPG Key ID: 4AEE18F83AFDEB23
20 changed files with 1375 additions and 726 deletions
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8
Protobuild.toml
View File

@ -32,9 +32,13 @@ plugins = ["grpc", "fieldpath"]
"google/rpc/status.proto" = "github.com/containerd/containerd/protobuf/google/rpc"
[[overrides]]
prefixes = ["github.com/containerd/containerd/api/events"]
plugins = ["fieldpath"]
plugins = ["fieldpath"] # disable grpc for this package
[[overrides]]
# enable ttrpc and disable fieldpath and grpc for the shim
prefixes = ["github.com/containerd/containerd/linux/shim/v1"]
plugins = ["ttrpc"]
# Aggregrate the API descriptors to lock down API changes.
[[descriptors]]

16
cmd/containerd-shim/main_unix.go
View File

@ -25,8 +25,8 @@ import (
"github.com/containerd/typeurl"
ptypes "github.com/gogo/protobuf/types"
"github.com/sirupsen/logrus"
"github.com/stevvooe/ttrpc"
"golang.org/x/sys/unix"
"google.golang.org/grpc"
)
var (
@ -100,7 +100,8 @@ func executeShim() error {
return err
}
logrus.Debug("registering grpc server")
shimapi.RegisterShimServer(server, sv)
shimapi.RegisterShimService(server, sv)
socket := socketFlag
if err := serve(server, socket); err != nil {
return err
@ -115,7 +116,7 @@ func executeShim() error {
// serve serves the grpc API over a unix socket at the provided path
// this function does not block
func serve(server *grpc.Server, path string) error {
func serve(server *ttrpc.Server, path string) error {
var (
l net.Listener
err error
@ -140,7 +141,7 @@ func serve(server *grpc.Server, path string) error {
return nil
}
func handleSignals(logger *logrus.Entry, signals chan os.Signal, server *grpc.Server, sv *shim.Service) error {
func handleSignals(logger *logrus.Entry, signals chan os.Signal, server *ttrpc.Server, sv *shim.Service) error {
var (
termOnce sync.Once
done = make(chan struct{})
@ -158,9 +159,12 @@ func handleSignals(logger *logrus.Entry, signals chan os.Signal, server *grpc.Se
}
case unix.SIGTERM, unix.SIGINT:
go termOnce.Do(func() {
server.Stop()
ctx := context.TODO()
if err := server.Shutdown(ctx); err != nil {
logger.WithError(err).Error("failed to shutdown server")
}
// Ensure our child is dead if any
sv.Kill(context.Background(), &shimapi.KillRequest{
sv.Kill(ctx, &shimapi.KillRequest{
Signal: uint32(syscall.SIGKILL),
All: true,
})

71
cmd/containerd-shim/shim_linux.go
View File

@ -1,20 +1,13 @@
package main
import (
"net"
"os"
"os/signal"
"google.golang.org/grpc"
"google.golang.org/grpc/credentials"
"golang.org/x/net/context"
"golang.org/x/sys/unix"
"github.com/containerd/containerd/reaper"
"github.com/containerd/containerd/sys"
runc "github.com/containerd/go-runc"
"github.com/pkg/errors"
"github.com/stevvooe/ttrpc"
)
// setupSignals creates a new signal handler for all signals and sets the shim as a
@ -32,64 +25,6 @@ func setupSignals() (chan os.Signal, error) {
return signals, nil
}
func newServer() *grpc.Server {
return grpc.NewServer(grpc.Creds(NewUnixSocketCredentials(0, 0)))
}
type unixSocketCredentials struct {
uid int
gid int
serverName string
}
// NewUnixSocketCredentials returns TransportCredentials for a local unix socket
func NewUnixSocketCredentials(uid, gid int) credentials.TransportCredentials {
return &unixSocketCredentials{uid, gid, "locahost"}
}
func (u *unixSocketCredentials) ClientHandshake(ctx context.Context, addr string, rawConn net.Conn) (net.Conn, credentials.AuthInfo, error) {
return nil, nil, errors.New("ClientHandshake is not supported by unixSocketCredentials")
}
func (u *unixSocketCredentials) ServerHandshake(c net.Conn) (net.Conn, credentials.AuthInfo, error) {
uc, ok := c.(*net.UnixConn)
if !ok {
return nil, nil, errors.New("unixSocketCredentials only supports unix socket")
}
f, err := uc.File()
if err != nil {
return nil, nil, errors.Wrap(err, "unixSocketCredentials: failed to retrieve connection underlying fd")
}
pcred, err := unix.GetsockoptUcred(int(f.Fd()), unix.SOL_SOCKET, unix.SO_PEERCRED)
if err != nil {
return nil, nil, errors.Wrap(err, "unixSocketCredentials: failed to retrieve socket peer credentials")
}
if (u.uid != -1 && uint32(u.uid) != pcred.Uid) || (u.gid != -1 && uint32(u.gid) != pcred.Gid) {
return nil, nil, errors.New("unixSocketCredentials: invalid credentials")
}
return c, u, nil
}
func (u *unixSocketCredentials) Info() credentials.ProtocolInfo {
return credentials.ProtocolInfo{
SecurityProtocol: "unix-socket-peer-creds",
SecurityVersion: "1.0",
ServerName: u.serverName,
}
}
func (u *unixSocketCredentials) Clone() credentials.TransportCredentials {
return &unixSocketCredentials{u.uid, u.gid, u.serverName}
}
func (u *unixSocketCredentials) OverrideServerName(serverName string) error {
u.serverName = serverName
return nil
}
func (u *unixSocketCredentials) AuthType() string {
return "unix-socket-peer-creds"
func newServer() *ttrpc.Server {
return ttrpc.NewServer()
}

7
cmd/containerd-shim/shim_unix.go
View File

@ -6,10 +6,9 @@ import (
"os"
"os/signal"
"google.golang.org/grpc"
"github.com/containerd/containerd/reaper"
runc "github.com/containerd/go-runc"
"github.com/stevvooe/ttrpc"
)
// setupSignals creates a new signal handler for all signals and sets the shim as a
@ -23,6 +22,6 @@ func setupSignals() (chan os.Signal, error) {
return signals, nil
}
func newServer() *grpc.Server {
return grpc.NewServer()
func newServer() *ttrpc.Server {
return ttrpc.NewServer()
}

22
cmd/ctr/commands/shim/shim.go
View File

@ -6,12 +6,9 @@ import (
"fmt"
"io/ioutil"
"net"
"time"
gocontext "context"
"google.golang.org/grpc"
"github.com/containerd/console"
"github.com/containerd/containerd/cmd/ctr/commands"
shim "github.com/containerd/containerd/linux/shim/v1"
@ -20,6 +17,7 @@ import (
"github.com/opencontainers/runtime-spec/specs-go"
"github.com/pkg/errors"
"github.com/sirupsen/logrus"
"github.com/stevvooe/ttrpc"
"github.com/urfave/cli"
)
@ -212,21 +210,21 @@ var execCommand = cli.Command{
},
}
func getShimService(context *cli.Context) (shim.ShimClient, error) {
func getShimService(context *cli.Context) (shim.ShimService, error) {
bindSocket := context.GlobalString("socket")
if bindSocket == "" {
return nil, errors.New("socket path must be specified")
}
dialOpts := []grpc.DialOption{grpc.WithInsecure(), grpc.WithTimeout(100 * time.Second)}
dialOpts = append(dialOpts,
grpc.WithDialer(func(addr string, timeout time.Duration) (net.Conn, error) {
return net.DialTimeout("unix", "\x00"+bindSocket, timeout)
},
))
conn, err := grpc.Dial(fmt.Sprintf("unix://%s", bindSocket), dialOpts...)
conn, err := net.Dial("unix", "\x00"+bindSocket)
if err != nil {
return nil, err
}
return shim.NewShimClient(conn), nil
client := ttrpc.NewClient(conn)
// TODO(stevvooe): This actually leaks the connection. We were leaking it
// before, so may not be a huge deal.
return shim.NewShimClient(client), nil
}

1
cmd/protoc-gen-gogoctrd/main.go
View File

@ -5,6 +5,7 @@ import (
"github.com/gogo/protobuf/protoc-gen-gogo/descriptor"
"github.com/gogo/protobuf/vanity"
"github.com/gogo/protobuf/vanity/command"
_ "github.com/stevvooe/ttrpc/plugin"
)
func main() {

49
linux/shim/client/client.go
View File

@ -4,7 +4,6 @@ package client
import (
"context"
"fmt"
"io"
"net"
"os"
@ -18,6 +17,7 @@ import (
"github.com/pkg/errors"
"github.com/sirupsen/logrus"
"github.com/stevvooe/ttrpc"
"github.com/containerd/containerd/events"
"github.com/containerd/containerd/linux/shim"
@ -26,17 +26,16 @@ import (
"github.com/containerd/containerd/reaper"
"github.com/containerd/containerd/sys"
ptypes "github.com/gogo/protobuf/types"
"google.golang.org/grpc"
)
var empty = &ptypes.Empty{}
// Opt is an option for a shim client configuration
type Opt func(context.Context, shim.Config) (shimapi.ShimClient, io.Closer, error)
type Opt func(context.Context, shim.Config) (shimapi.ShimService, io.Closer, error)
// WithStart executes a new shim process
func WithStart(binary, address, daemonAddress, cgroup string, nonewns, debug bool, exitHandler func()) Opt {
return func(ctx context.Context, config shim.Config) (_ shimapi.ShimClient, _ io.Closer, err error) {
return func(ctx context.Context, config shim.Config) (_ shimapi.ShimService, _ io.Closer, err error) {
socket, err := newSocket(address)
if err != nil {
return nil, nil, err
@ -139,19 +138,8 @@ func newSocket(address string) (*net.UnixListener, error) {
return l.(*net.UnixListener), nil
}
func connect(address string, d func(string, time.Duration) (net.Conn, error)) (*grpc.ClientConn, error) {
gopts := []grpc.DialOption{
grpc.WithBlock(),
grpc.WithInsecure(),
grpc.WithTimeout(100 * time.Second),
grpc.WithDialer(d),
grpc.FailOnNonTempDialError(true),
}
conn, err := grpc.Dial(dialAddress(address), gopts...)
if err != nil {
return nil, errors.Wrapf(err, "failed to dial %q", address)
}
return conn, nil
func connect(address string, d func(string, time.Duration) (net.Conn, error)) (net.Conn, error) {
return d(address, 100*time.Second)
}
func annonDialer(address string, timeout time.Duration) (net.Conn, error) {
@ -159,24 +147,20 @@ func annonDialer(address string, timeout time.Duration) (net.Conn, error) {
return net.DialTimeout("unix", "\x00"+address, timeout)
}
func dialAddress(address string) string {
return fmt.Sprintf("unix://%s", address)
}
// WithConnect connects to an existing shim
func WithConnect(address string) Opt {
return func(ctx context.Context, config shim.Config) (shimapi.ShimClient, io.Closer, error) {
return func(ctx context.Context, config shim.Config) (shimapi.ShimService, io.Closer, error) {
conn, err := connect(address, annonDialer)
if err != nil {
return nil, nil, err
}
return shimapi.NewShimClient(conn), conn, nil
return shimapi.NewShimClient(ttrpc.NewClient(conn)), conn, nil
}
}
// WithLocal uses an in process shim
func WithLocal(publisher events.Publisher) func(context.Context, shim.Config) (shimapi.ShimClient, io.Closer, error) {
return func(ctx context.Context, config shim.Config) (shimapi.ShimClient, io.Closer, error) {
func WithLocal(publisher events.Publisher) func(context.Context, shim.Config) (shimapi.ShimService, io.Closer, error) {
return func(ctx context.Context, config shim.Config) (shimapi.ShimService, io.Closer, error) {
service, err := shim.NewService(config, publisher)
if err != nil {
return nil, nil, err
@ -192,15 +176,15 @@ func New(ctx context.Context, config shim.Config, opt Opt) (*Client, error) {
return nil, err
}
return &Client{
ShimClient: s,
c: c,
exitCh: make(chan struct{}),
ShimService: s,
c: c,
exitCh: make(chan struct{}),
}, nil
}
// Client is a shim client containing the connection to a shim
type Client struct {
shimapi.ShimClient
shimapi.ShimService
c io.Closer
exitCh chan struct{}
@ -212,10 +196,9 @@ type Client struct {
func (c *Client) IsAlive(ctx context.Context) (bool, error) {
_, err := c.ShimInfo(ctx, empty)
if err != nil {
if err != grpc.ErrServerStopped {
return false, err
}
return false, nil
// TODO(stevvooe): There are some error conditions that need to be
// handle with unix sockets existence to give the right answer here.
return false, err
}
return true, nil
}

37
linux/shim/local.go
View File

@ -3,17 +3,16 @@
package shim
import (
"context"
"path/filepath"
shimapi "github.com/containerd/containerd/linux/shim/v1"
ptypes "github.com/gogo/protobuf/types"
"golang.org/x/net/context"
"golang.org/x/sys/unix"
"google.golang.org/grpc"
)
// NewLocal returns a shim client implementation for issue commands to a shim
func NewLocal(s *Service) shimapi.ShimClient {
func NewLocal(s *Service) shimapi.ShimService {
return &local{
s: s,
}
@ -23,15 +22,15 @@ type local struct {
s *Service
}
func (c *local) Create(ctx context.Context, in *shimapi.CreateTaskRequest, opts ...grpc.CallOption) (*shimapi.CreateTaskResponse, error) {
func (c *local) Create(ctx context.Context, in *shimapi.CreateTaskRequest) (*shimapi.CreateTaskResponse, error) {
return c.s.Create(ctx, in)
}
func (c *local) Start(ctx context.Context, in *shimapi.StartRequest, opts ...grpc.CallOption) (*shimapi.StartResponse, error) {
func (c *local) Start(ctx context.Context, in *shimapi.StartRequest) (*shimapi.StartResponse, error) {
return c.s.Start(ctx, in)
}
func (c *local) Delete(ctx context.Context, in *ptypes.Empty, opts ...grpc.CallOption) (*shimapi.DeleteResponse, error) {
func (c *local) Delete(ctx context.Context, in *ptypes.Empty) (*shimapi.DeleteResponse, error) {
// make sure we unmount the containers rootfs for this local
if err := unix.Unmount(filepath.Join(c.s.config.Path, "rootfs"), 0); err != nil {
return nil, err
@ -39,54 +38,54 @@ func (c *local) Delete(ctx context.Context, in *ptypes.Empty, opts ...grpc.CallO
return c.s.Delete(ctx, in)
}
func (c *local) DeleteProcess(ctx context.Context, in *shimapi.DeleteProcessRequest, opts ...grpc.CallOption) (*shimapi.DeleteResponse, error) {
func (c *local) DeleteProcess(ctx context.Context, in *shimapi.DeleteProcessRequest) (*shimapi.DeleteResponse, error) {
return c.s.DeleteProcess(ctx, in)
}
func (c *local) Exec(ctx context.Context, in *shimapi.ExecProcessRequest, opts ...grpc.CallOption) (*ptypes.Empty, error) {
func (c *local) Exec(ctx context.Context, in *shimapi.ExecProcessRequest) (*ptypes.Empty, error) {
return c.s.Exec(ctx, in)
}
func (c *local) ResizePty(ctx context.Context, in *shimapi.ResizePtyRequest, opts ...grpc.CallOption) (*ptypes.Empty, error) {
func (c *local) ResizePty(ctx context.Context, in *shimapi.ResizePtyRequest) (*ptypes.Empty, error) {
return c.s.ResizePty(ctx, in)
}
func (c *local) State(ctx context.Context, in *shimapi.StateRequest, opts ...grpc.CallOption) (*shimapi.StateResponse, error) {
func (c *local) State(ctx context.Context, in *shimapi.StateRequest) (*shimapi.StateResponse, error) {
return c.s.State(ctx, in)
}
func (c *local) Pause(ctx context.Context, in *ptypes.Empty, opts ...grpc.CallOption) (*ptypes.Empty, error) {
func (c *local) Pause(ctx context.Context, in *ptypes.Empty) (*ptypes.Empty, error) {
return c.s.Pause(ctx, in)
}
func (c *local) Resume(ctx context.Context, in *ptypes.Empty, opts ...grpc.CallOption) (*ptypes.Empty, error) {
func (c *local) Resume(ctx context.Context, in *ptypes.Empty) (*ptypes.Empty, error) {
return c.s.Resume(ctx, in)
}
func (c *local) Kill(ctx context.Context, in *shimapi.KillRequest, opts ...grpc.CallOption) (*ptypes.Empty, error) {
func (c *local) Kill(ctx context.Context, in *shimapi.KillRequest) (*ptypes.Empty, error) {
return c.s.Kill(ctx, in)
}
func (c *local) ListPids(ctx context.Context, in *shimapi.ListPidsRequest, opts ...grpc.CallOption) (*shimapi.ListPidsResponse, error) {
func (c *local) ListPids(ctx context.Context, in *shimapi.ListPidsRequest) (*shimapi.ListPidsResponse, error) {
return c.s.ListPids(ctx, in)
}
func (c *local) CloseIO(ctx context.Context, in *shimapi.CloseIORequest, opts ...grpc.CallOption) (*ptypes.Empty, error) {
func (c *local) CloseIO(ctx context.Context, in *shimapi.CloseIORequest) (*ptypes.Empty, error) {
return c.s.CloseIO(ctx, in)
}
func (c *local) Checkpoint(ctx context.Context, in *shimapi.CheckpointTaskRequest, opts ...grpc.CallOption) (*ptypes.Empty, error) {
func (c *local) Checkpoint(ctx context.Context, in *shimapi.CheckpointTaskRequest) (*ptypes.Empty, error) {
return c.s.Checkpoint(ctx, in)
}
func (c *local) ShimInfo(ctx context.Context, in *ptypes.Empty, opts ...grpc.CallOption) (*shimapi.ShimInfoResponse, error) {
func (c *local) ShimInfo(ctx context.Context, in *ptypes.Empty) (*shimapi.ShimInfoResponse, error) {
return c.s.ShimInfo(ctx, in)
}
func (c *local) Update(ctx context.Context, in *shimapi.UpdateTaskRequest, opts ...grpc.CallOption) (*ptypes.Empty, error) {
func (c *local) Update(ctx context.Context, in *shimapi.UpdateTaskRequest) (*ptypes.Empty, error) {
return c.s.Update(ctx, in)
}
func (c *local) Wait(ctx context.Context, in *shimapi.WaitRequest, opts ...grpc.CallOption) (*shimapi.WaitResponse, error) {
func (c *local) Wait(ctx context.Context, in *shimapi.WaitRequest) (*shimapi.WaitResponse, error) {
return c.s.Wait(ctx, in)
}

9
linux/shim/service.go
View File

@ -3,13 +3,11 @@
package shim
import (
"context"
"fmt"
"os"
"sync"
"google.golang.org/grpc"
"google.golang.org/grpc/codes"
"github.com/containerd/console"
eventstypes "github.com/containerd/containerd/api/events"
"github.com/containerd/containerd/api/types/task"
@ -27,7 +25,8 @@ import (
ptypes "github.com/gogo/protobuf/types"
"github.com/pkg/errors"
"github.com/sirupsen/logrus"
"golang.org/x/net/context"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/status"
)
var empty = &ptypes.Empty{}
@ -167,7 +166,7 @@ func (s *Service) DeleteProcess(ctx context.Context, r *shimapi.DeleteProcessReq
s.mu.Lock()
defer s.mu.Unlock()
if r.ID == s.id {
return nil, grpc.Errorf(codes.InvalidArgument, "cannot delete init process with DeleteProcess")
return nil, status.Errorf(codes.InvalidArgument, "cannot delete init process with DeleteProcess")
}
p := s.processes[r.ID]
if p == nil {

854
linux/shim/v1/shim.pb.go
View File

@ -44,16 +44,14 @@ import containerd_v1_types "github.com/containerd/containerd/api/types/task"
import time "time"
import (
context "golang.org/x/net/context"
grpc "google.golang.org/grpc"
)
import github_com_gogo_protobuf_types "github.com/gogo/protobuf/types"
import strings "strings"
import reflect "reflect"
import context "context"
import github_com_stevvooe_ttrpc "github.com/stevvooe/ttrpc"
import io "io"
// Reference imports to suppress errors if they are not otherwise used.
@ -283,578 +281,6 @@ func init() {
proto.RegisterType((*WaitRequest)(nil), "containerd.runtime.linux.shim.v1.WaitRequest")
proto.RegisterType((*WaitResponse)(nil), "containerd.runtime.linux.shim.v1.WaitResponse")
}
// Reference imports to suppress errors if they are not otherwise used.
var _ context.Context
var _ grpc.ClientConn
// This is a compile-time assertion to ensure that this generated file
// is compatible with the grpc package it is being compiled against.
const _ = grpc.SupportPackageIsVersion4
// Client API for Shim service
type ShimClient interface {
// State returns shim and task state information.
State(ctx context.Context, in *StateRequest, opts ...grpc.CallOption) (*StateResponse, error)
Create(ctx context.Context, in *CreateTaskRequest, opts ...grpc.CallOption) (*CreateTaskResponse, error)
Start(ctx context.Context, in *StartRequest, opts ...grpc.CallOption) (*StartResponse, error)
Delete(ctx context.Context, in *google_protobuf1.Empty, opts ...grpc.CallOption) (*DeleteResponse, error)
DeleteProcess(ctx context.Context, in *DeleteProcessRequest, opts ...grpc.CallOption) (*DeleteResponse, error)
ListPids(ctx context.Context, in *ListPidsRequest, opts ...grpc.CallOption) (*ListPidsResponse, error)
Pause(ctx context.Context, in *google_protobuf1.Empty, opts ...grpc.CallOption) (*google_protobuf1.Empty, error)
Resume(ctx context.Context, in *google_protobuf1.Empty, opts ...grpc.CallOption) (*google_protobuf1.Empty, error)
Checkpoint(ctx context.Context, in *CheckpointTaskRequest, opts ...grpc.CallOption) (*google_protobuf1.Empty, error)
Kill(ctx context.Context, in *KillRequest, opts ...grpc.CallOption) (*google_protobuf1.Empty, error)
Exec(ctx context.Context, in *ExecProcessRequest, opts ...grpc.CallOption) (*google_protobuf1.Empty, error)
ResizePty(ctx context.Context, in *ResizePtyRequest, opts ...grpc.CallOption) (*google_protobuf1.Empty, error)
CloseIO(ctx context.Context, in *CloseIORequest, opts ...grpc.CallOption) (*google_protobuf1.Empty, error)
// ShimInfo returns information about the shim.
ShimInfo(ctx context.Context, in *google_protobuf1.Empty, opts ...grpc.CallOption) (*ShimInfoResponse, error)
Update(ctx context.Context, in *UpdateTaskRequest, opts ...grpc.CallOption) (*google_protobuf1.Empty, error)
Wait(ctx context.Context, in *WaitRequest, opts ...grpc.CallOption) (*WaitResponse, error)
}
type shimClient struct {
cc *grpc.ClientConn
}
func NewShimClient(cc *grpc.ClientConn) ShimClient {
return &shimClient{cc}
}
func (c *shimClient) State(ctx context.Context, in *StateRequest, opts ...grpc.CallOption) (*StateResponse, error) {
out := new(StateResponse)
err := grpc.Invoke(ctx, "/containerd.runtime.linux.shim.v1.Shim/State", in, out, c.cc, opts...)
if err != nil {
return nil, err
}
return out, nil
}
func (c *shimClient) Create(ctx context.Context, in *CreateTaskRequest, opts ...grpc.CallOption) (*CreateTaskResponse, error) {
out := new(CreateTaskResponse)
err := grpc.Invoke(ctx, "/containerd.runtime.linux.shim.v1.Shim/Create", in, out, c.cc, opts...)
if err != nil {
return nil, err
}
return out, nil
}
func (c *shimClient) Start(ctx context.Context, in *StartRequest, opts ...grpc.CallOption) (*StartResponse, error) {
out := new(StartResponse)
err := grpc.Invoke(ctx, "/containerd.runtime.linux.shim.v1.Shim/Start", in, out, c.cc, opts...)
if err != nil {
return nil, err
}
return out, nil
}
func (c *shimClient) Delete(ctx context.Context, in *google_protobuf1.Empty, opts ...grpc.CallOption) (*DeleteResponse, error) {
out := new(DeleteResponse)
err := grpc.Invoke(ctx, "/containerd.runtime.linux.shim.v1.Shim/Delete", in, out, c.cc, opts...)
if err != nil {
return nil, err
}
return out, nil
}
func (c *shimClient) DeleteProcess(ctx context.Context, in *DeleteProcessRequest, opts ...grpc.CallOption) (*DeleteResponse, error) {
out := new(DeleteResponse)
err := grpc.Invoke(ctx, "/containerd.runtime.linux.shim.v1.Shim/DeleteProcess", in, out, c.cc, opts...)
if err != nil {
return nil, err
}
return out, nil
}
func (c *shimClient) ListPids(ctx context.Context, in *ListPidsRequest, opts ...grpc.CallOption) (*ListPidsResponse, error) {
out := new(ListPidsResponse)
err := grpc.Invoke(ctx, "/containerd.runtime.linux.shim.v1.Shim/ListPids", in, out, c.cc, opts...)
if err != nil {
return nil, err
}
return out, nil
}
func (c *shimClient) Pause(ctx context.Context, in *google_protobuf1.Empty, opts ...grpc.CallOption) (*google_protobuf1.Empty, error) {
out := new(google_protobuf1.Empty)
err := grpc.Invoke(ctx, "/containerd.runtime.linux.shim.v1.Shim/Pause", in, out, c.cc, opts...)
if err != nil {
return nil, err
}
return out, nil
}
func (c *shimClient) Resume(ctx context.Context, in *google_protobuf1.Empty, opts ...grpc.CallOption) (*google_protobuf1.Empty, error) {
out := new(google_protobuf1.Empty)
err := grpc.Invoke(ctx, "/containerd.runtime.linux.shim.v1.Shim/Resume", in, out, c.cc, opts...)
if err != nil {
return nil, err
}
return out, nil
}
func (c *shimClient) Checkpoint(ctx context.Context, in *CheckpointTaskRequest, opts ...grpc.CallOption) (*google_protobuf1.Empty, error) {
out := new(google_protobuf1.Empty)
err := grpc.Invoke(ctx, "/containerd.runtime.linux.shim.v1.Shim/Checkpoint", in, out, c.cc, opts...)
if err != nil {
return nil, err
}
return out, nil
}
func (c *shimClient) Kill(ctx context.Context, in *KillRequest, opts ...grpc.CallOption) (*google_protobuf1.Empty, error) {
out := new(google_protobuf1.Empty)
err := grpc.Invoke(ctx, "/containerd.runtime.linux.shim.v1.Shim/Kill", in, out, c.cc, opts...)
if err != nil {
return nil, err
}
return out, nil
}
func (c *shimClient) Exec(ctx context.Context, in *ExecProcessRequest, opts ...grpc.CallOption) (*google_protobuf1.Empty, error) {
out := new(google_protobuf1.Empty)
err := grpc.Invoke(ctx, "/containerd.runtime.linux.shim.v1.Shim/Exec", in, out, c.cc, opts...)
if err != nil {
return nil, err
}
return out, nil
}
func (c *shimClient) ResizePty(ctx context.Context, in *ResizePtyRequest, opts ...grpc.CallOption) (*google_protobuf1.Empty, error) {
out := new(google_protobuf1.Empty)
err := grpc.Invoke(ctx, "/containerd.runtime.linux.shim.v1.Shim/ResizePty", in, out, c.cc, opts...)
if err != nil {
return nil, err
}
return out, nil
}
func (c *shimClient) CloseIO(ctx context.Context, in *CloseIORequest, opts ...grpc.CallOption) (*google_protobuf1.Empty, error) {
out := new(google_protobuf1.Empty)
err := grpc.Invoke(ctx, "/containerd.runtime.linux.shim.v1.Shim/CloseIO", in, out, c.cc, opts...)
if err != nil {
return nil, err
}
return out, nil
}
func (c *shimClient) ShimInfo(ctx context.Context, in *google_protobuf1.Empty, opts ...grpc.CallOption) (*ShimInfoResponse, error) {
out := new(ShimInfoResponse)
err := grpc.Invoke(ctx, "/containerd.runtime.linux.shim.v1.Shim/ShimInfo", in, out, c.cc, opts...)
if err != nil {
return nil, err
}
return out, nil
}
func (c *shimClient) Update(ctx context.Context, in *UpdateTaskRequest, opts ...grpc.CallOption) (*google_protobuf1.Empty, error) {
out := new(google_protobuf1.Empty)
err := grpc.Invoke(ctx, "/containerd.runtime.linux.shim.v1.Shim/Update", in, out, c.cc, opts...)
if err != nil {
return nil, err
}
return out, nil
}
func (c *shimClient) Wait(ctx context.Context, in *WaitRequest, opts ...grpc.CallOption) (*WaitResponse, error) {
out := new(WaitResponse)
err := grpc.Invoke(ctx, "/containerd.runtime.linux.shim.v1.Shim/Wait", in, out, c.cc, opts...)
if err != nil {
return nil, err
}
return out, nil
}
// Server API for Shim service
type ShimServer interface {
// State returns shim and task state information.
State(context.Context, *StateRequest) (*StateResponse, error)
Create(context.Context, *CreateTaskRequest) (*CreateTaskResponse, error)
Start(context.Context, *StartRequest) (*StartResponse, error)
Delete(context.Context, *google_protobuf1.Empty) (*DeleteResponse, error)
DeleteProcess(context.Context, *DeleteProcessRequest) (*DeleteResponse, error)
ListPids(context.Context, *ListPidsRequest) (*ListPidsResponse, error)
Pause(context.Context, *google_protobuf1.Empty) (*google_protobuf1.Empty, error)
Resume(context.Context, *google_protobuf1.Empty) (*google_protobuf1.Empty, error)
Checkpoint(context.Context, *CheckpointTaskRequest) (*google_protobuf1.Empty, error)
Kill(context.Context, *KillRequest) (*google_protobuf1.Empty, error)
Exec(context.Context, *ExecProcessRequest) (*google_protobuf1.Empty, error)
ResizePty(context.Context, *ResizePtyRequest) (*google_protobuf1.Empty, error)
CloseIO(context.Context, *CloseIORequest) (*google_protobuf1.Empty, error)
// ShimInfo returns information about the shim.
ShimInfo(context.Context, *google_protobuf1.Empty) (*ShimInfoResponse, error)
Update(context.Context, *UpdateTaskRequest) (*google_protobuf1.Empty, error)
Wait(context.Context, *WaitRequest) (*WaitResponse, error)
}
func RegisterShimServer(s *grpc.Server, srv ShimServer) {
s.RegisterService(&_Shim_serviceDesc, srv)
}
func _Shim_State_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
in := new(StateRequest)
if err := dec(in); err != nil {
return nil, err
}
if interceptor == nil {
return srv.(ShimServer).State(ctx, in)
}
info := &grpc.UnaryServerInfo{
Server: srv,
FullMethod: "/containerd.runtime.linux.shim.v1.Shim/State",
}
handler := func(ctx context.Context, req interface{}) (interface{}, error) {
return srv.(ShimServer).State(ctx, req.(*StateRequest))
}
return interceptor(ctx, in, info, handler)
}
func _Shim_Create_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
in := new(CreateTaskRequest)
if err := dec(in); err != nil {
return nil, err
}
if interceptor == nil {
return srv.(ShimServer).Create(ctx, in)
}
info := &grpc.UnaryServerInfo{
Server: srv,
FullMethod: "/containerd.runtime.linux.shim.v1.Shim/Create",
}
handler := func(ctx context.Context, req interface{}) (interface{}, error) {
return srv.(ShimServer).Create(ctx, req.(*CreateTaskRequest))
}
return interceptor(ctx, in, info, handler)
}
func _Shim_Start_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
in := new(StartRequest)
if err := dec(in); err != nil {
return nil, err
}
if interceptor == nil {
return srv.(ShimServer).Start(ctx, in)
}
info := &grpc.UnaryServerInfo{
Server: srv,
FullMethod: "/containerd.runtime.linux.shim.v1.Shim/Start",
}
handler := func(ctx context.Context, req interface{}) (interface{}, error) {
return srv.(ShimServer).Start(ctx, req.(*StartRequest))
}
return interceptor(ctx, in, info, handler)
}
func _Shim_Delete_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
in := new(google_protobuf1.Empty)
if err := dec(in); err != nil {
return nil, err
}
if interceptor == nil {
return srv.(ShimServer).Delete(ctx, in)
}
info := &grpc.UnaryServerInfo{
Server: srv,
FullMethod: "/containerd.runtime.linux.shim.v1.Shim/Delete",
}
handler := func(ctx context.Context, req interface{}) (interface{}, error) {
return srv.(ShimServer).Delete(ctx, req.(*google_protobuf1.Empty))
}
return interceptor(ctx, in, info, handler)
}
func _Shim_DeleteProcess_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
in := new(DeleteProcessRequest)
if err := dec(in); err != nil {
return nil, err
}
if interceptor == nil {
return srv.(ShimServer).DeleteProcess(ctx, in)
}
info := &grpc.UnaryServerInfo{
Server: srv,
FullMethod: "/containerd.runtime.linux.shim.v1.Shim/DeleteProcess",
}
handler := func(ctx context.Context, req interface{}) (interface{}, error) {
return srv.(ShimServer).DeleteProcess(ctx, req.(*DeleteProcessRequest))
}
return interceptor(ctx, in, info, handler)
}
func _Shim_ListPids_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
in := new(ListPidsRequest)
if err := dec(in); err != nil {
return nil, err
}
if interceptor == nil {
return srv.(ShimServer).ListPids(ctx, in)
}
info := &grpc.UnaryServerInfo{
Server: srv,
FullMethod: "/containerd.runtime.linux.shim.v1.Shim/ListPids",
}
handler := func(ctx context.Context, req interface{}) (interface{}, error) {
return srv.(ShimServer).ListPids(ctx, req.(*ListPidsRequest))
}
return interceptor(ctx, in, info, handler)
}
func _Shim_Pause_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
in := new(google_protobuf1.Empty)
if err := dec(in); err != nil {
return nil, err
}
if interceptor == nil {
return srv.(ShimServer).Pause(ctx, in)
}
info := &grpc.UnaryServerInfo{
Server: srv,
FullMethod: "/containerd.runtime.linux.shim.v1.Shim/Pause",
}
handler := func(ctx context.Context, req interface{}) (interface{}, error) {
return srv.(ShimServer).Pause(ctx, req.(*google_protobuf1.Empty))
}
return interceptor(ctx, in, info, handler)
}
func _Shim_Resume_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
in := new(google_protobuf1.Empty)
if err := dec(in); err != nil {
return nil, err
}
if interceptor == nil {
return srv.(ShimServer).Resume(ctx, in)
}
info := &grpc.UnaryServerInfo{
Server: srv,
FullMethod: "/containerd.runtime.linux.shim.v1.Shim/Resume",
}
handler := func(ctx context.Context, req interface{}) (interface{}, error) {
return srv.(ShimServer).Resume(ctx, req.(*google_protobuf1.Empty))
}
return interceptor(ctx, in, info, handler)
}
func _Shim_Checkpoint_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
in := new(CheckpointTaskRequest)
if err := dec(in); err != nil {
return nil, err
}
if interceptor == nil {
return srv.(ShimServer).Checkpoint(ctx, in)
}
info := &grpc.UnaryServerInfo{
Server: srv,
FullMethod: "/containerd.runtime.linux.shim.v1.Shim/Checkpoint",
}
handler := func(ctx context.Context, req interface{}) (interface{}, error) {
return srv.(ShimServer).Checkpoint(ctx, req.(*CheckpointTaskRequest))
}
return interceptor(ctx, in, info, handler)
}
func _Shim_Kill_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
in := new(KillRequest)
if err := dec(in); err != nil {
return nil, err
}
if interceptor == nil {
return srv.(ShimServer).Kill(ctx, in)
}
info := &grpc.UnaryServerInfo{
Server: srv,
FullMethod: "/containerd.runtime.linux.shim.v1.Shim/Kill",
}
handler := func(ctx context.Context, req interface{}) (interface{}, error) {
return srv.(ShimServer).Kill(ctx, req.(*KillRequest))
}
return interceptor(ctx, in, info, handler)
}
func _Shim_Exec_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
in := new(ExecProcessRequest)
if err := dec(in); err != nil {
return nil, err
}
if interceptor == nil {
return srv.(ShimServer).Exec(ctx, in)
}
info := &grpc.UnaryServerInfo{
Server: srv,
FullMethod: "/containerd.runtime.linux.shim.v1.Shim/Exec",
}
handler := func(ctx context.Context, req interface{}) (interface{}, error) {
return srv.(ShimServer).Exec(ctx, req.(*ExecProcessRequest))
}
return interceptor(ctx, in, info, handler)
}
func _Shim_ResizePty_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
in := new(ResizePtyRequest)
if err := dec(in); err != nil {
return nil, err
}
if interceptor == nil {
return srv.(ShimServer).ResizePty(ctx, in)
}
info := &grpc.UnaryServerInfo{
Server: srv,
FullMethod: "/containerd.runtime.linux.shim.v1.Shim/ResizePty",
}
handler := func(ctx context.Context, req interface{}) (interface{}, error) {
return srv.(ShimServer).ResizePty(ctx, req.(*ResizePtyRequest))
}
return interceptor(ctx, in, info, handler)
}
func _Shim_CloseIO_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
in := new(CloseIORequest)
if err := dec(in); err != nil {
return nil, err
}
if interceptor == nil {
return srv.(ShimServer).CloseIO(ctx, in)
}
info := &grpc.UnaryServerInfo{
Server: srv,
FullMethod: "/containerd.runtime.linux.shim.v1.Shim/CloseIO",
}
handler := func(ctx context.Context, req interface{}) (interface{}, error) {
return srv.(ShimServer).CloseIO(ctx, req.(*CloseIORequest))
}
return interceptor(ctx, in, info, handler)
}
func _Shim_ShimInfo_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
in := new(google_protobuf1.Empty)
if err := dec(in); err != nil {
return nil, err
}
if interceptor == nil {
return srv.(ShimServer).ShimInfo(ctx, in)
}
info := &grpc.UnaryServerInfo{
Server: srv,
FullMethod: "/containerd.runtime.linux.shim.v1.Shim/ShimInfo",
}
handler := func(ctx context.Context, req interface{}) (interface{}, error) {
return srv.(ShimServer).ShimInfo(ctx, req.(*google_protobuf1.Empty))
}
return interceptor(ctx, in, info, handler)
}
func _Shim_Update_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
in := new(UpdateTaskRequest)
if err := dec(in); err != nil {
return nil, err
}
if interceptor == nil {
return srv.(ShimServer).Update(ctx, in)
}
info := &grpc.UnaryServerInfo{
Server: srv,
FullMethod: "/containerd.runtime.linux.shim.v1.Shim/Update",
}
handler := func(ctx context.Context, req interface{}) (interface{}, error) {
return srv.(ShimServer).Update(ctx, req.(*UpdateTaskRequest))
}
return interceptor(ctx, in, info, handler)
}
func _Shim_Wait_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
in := new(WaitRequest)
if err := dec(in); err != nil {
return nil, err
}
if interceptor == nil {
return srv.(ShimServer).Wait(ctx, in)
}
info := &grpc.UnaryServerInfo{
Server: srv,
FullMethod: "/containerd.runtime.linux.shim.v1.Shim/Wait",
}
handler := func(ctx context.Context, req interface{}) (interface{}, error) {
return srv.(ShimServer).Wait(ctx, req.(*WaitRequest))
}
return interceptor(ctx, in, info, handler)
}
var _Shim_serviceDesc = grpc.ServiceDesc{
ServiceName: "containerd.runtime.linux.shim.v1.Shim",
HandlerType: (*ShimServer)(nil),
Methods: []grpc.MethodDesc{
{
MethodName: "State",
Handler: _Shim_State_Handler,
},
{
MethodName: "Create",
Handler: _Shim_Create_Handler,
},
{
MethodName: "Start",
Handler: _Shim_Start_Handler,
},
{
MethodName: "Delete",
Handler: _Shim_Delete_Handler,
},
{
MethodName: "DeleteProcess",
Handler: _Shim_DeleteProcess_Handler,
},
{
MethodName: "ListPids",
Handler: _Shim_ListPids_Handler,
},
{
MethodName: "Pause",
Handler: _Shim_Pause_Handler,
},
{
MethodName: "Resume",
Handler: _Shim_Resume_Handler,
},
{
MethodName: "Checkpoint",
Handler: _Shim_Checkpoint_Handler,
},
{
MethodName: "Kill",
Handler: _Shim_Kill_Handler,
},
{
MethodName: "Exec",
Handler: _Shim_Exec_Handler,
},
{
MethodName: "ResizePty",
Handler: _Shim_ResizePty_Handler,
},
{
MethodName: "CloseIO",
Handler: _Shim_CloseIO_Handler,
},
{
MethodName: "ShimInfo",
Handler: _Shim_ShimInfo_Handler,
},
{
MethodName: "Update",
Handler: _Shim_Update_Handler,
},
{
MethodName: "Wait",
Handler: _Shim_Wait_Handler,
},
},
Streams: []grpc.StreamDesc{},
Metadata: "github.com/containerd/containerd/linux/shim/v1/shim.proto",
}
func (m *CreateTaskRequest) Marshal() (dAtA []byte, err error) {
size := m.Size()
dAtA = make([]byte, size)
@ -2151,6 +1577,280 @@ func valueToStringShim(v interface{}) string {
pv := reflect.Indirect(rv).Interface()
return fmt.Sprintf("*%v", pv)
}
type ShimService interface {
State(ctx context.Context, req *StateRequest) (*StateResponse, error)
Create(ctx context.Context, req *CreateTaskRequest) (*CreateTaskResponse, error)
Start(ctx context.Context, req *StartRequest) (*StartResponse, error)
Delete(ctx context.Context, req *google_protobuf1.Empty) (*DeleteResponse, error)
DeleteProcess(ctx context.Context, req *DeleteProcessRequest) (*DeleteResponse, error)
ListPids(ctx context.Context, req *ListPidsRequest) (*ListPidsResponse, error)
Pause(ctx context.Context, req *google_protobuf1.Empty) (*google_protobuf1.Empty, error)
Resume(ctx context.Context, req *google_protobuf1.Empty) (*google_protobuf1.Empty, error)
Checkpoint(ctx context.Context, req *CheckpointTaskRequest) (*google_protobuf1.Empty, error)
Kill(ctx context.Context, req *KillRequest) (*google_protobuf1.Empty, error)
Exec(ctx context.Context, req *ExecProcessRequest) (*google_protobuf1.Empty, error)
ResizePty(ctx context.Context, req *ResizePtyRequest) (*google_protobuf1.Empty, error)
CloseIO(ctx context.Context, req *CloseIORequest) (*google_protobuf1.Empty, error)
ShimInfo(ctx context.Context, req *google_protobuf1.Empty) (*ShimInfoResponse, error)
Update(ctx context.Context, req *UpdateTaskRequest) (*google_protobuf1.Empty, error)
Wait(ctx context.Context, req *WaitRequest) (*WaitResponse, error)
}
func RegisterShimService(srv *github_com_stevvooe_ttrpc.Server, svc ShimService) {
srv.Register("containerd.runtime.linux.shim.v1.Shim", map[string]github_com_stevvooe_ttrpc.Method{
"State": func(ctx context.Context, unmarshal func(interface{}) error) (interface{}, error) {
var req StateRequest
if err := unmarshal(&req); err != nil {
return nil, err
}
return svc.State(ctx, &req)
},
"Create": func(ctx context.Context, unmarshal func(interface{}) error) (interface{}, error) {
var req CreateTaskRequest
if err := unmarshal(&req); err != nil {
return nil, err
}
return svc.Create(ctx, &req)
},
"Start": func(ctx context.Context, unmarshal func(interface{}) error) (interface{}, error) {
var req StartRequest
if err := unmarshal(&req); err != nil {
return nil, err
}
return svc.Start(ctx, &req)
},
"Delete": func(ctx context.Context, unmarshal func(interface{}) error) (interface{}, error) {
var req google_protobuf1.Empty
if err := unmarshal(&req); err != nil {
return nil, err
}
return svc.Delete(ctx, &req)
},
"DeleteProcess": func(ctx context.Context, unmarshal func(interface{}) error) (interface{}, error) {
var req DeleteProcessRequest
if err := unmarshal(&req); err != nil {
return nil, err
}
return svc.DeleteProcess(ctx, &req)
},
"ListPids": func(ctx context.Context, unmarshal func(interface{}) error) (interface{}, error) {
var req ListPidsRequest
if err := unmarshal(&req); err != nil {
return nil, err
}
return svc.ListPids(ctx, &req)
},
"Pause": func(ctx context.Context, unmarshal func(interface{}) error) (interface{}, error) {
var req google_protobuf1.Empty
if err := unmarshal(&req); err != nil {
return nil, err
}
return svc.Pause(ctx, &req)
},
"Resume": func(ctx context.Context, unmarshal func(interface{}) error) (interface{}, error) {
var req google_protobuf1.Empty
if err := unmarshal(&req); err != nil {
return nil, err
}
return svc.Resume(ctx, &req)
},
"Checkpoint": func(ctx context.Context, unmarshal func(interface{}) error) (interface{}, error) {
var req CheckpointTaskRequest
if err := unmarshal(&req); err != nil {
return nil, err
}
return svc.Checkpoint(ctx, &req)
},
"Kill": func(ctx context.Context, unmarshal func(interface{}) error) (interface{}, error) {
var req KillRequest
if err := unmarshal(&req); err != nil {
return nil, err
}
return svc.Kill(ctx, &req)
},
"Exec": func(ctx context.Context, unmarshal func(interface{}) error) (interface{}, error) {
var req ExecProcessRequest
if err := unmarshal(&req); err != nil {
return nil, err
}
return svc.Exec(ctx, &req)
},
"ResizePty": func(ctx context.Context, unmarshal func(interface{}) error) (interface{}, error) {
var req ResizePtyRequest
if err := unmarshal(&req); err != nil {
return nil, err
}
return svc.ResizePty(ctx, &req)
},
"CloseIO": func(ctx context.Context, unmarshal func(interface{}) error) (interface{}, error) {
var req CloseIORequest
if err := unmarshal(&req); err != nil {
return nil, err
}
return svc.CloseIO(ctx, &req)
},
"ShimInfo": func(ctx context.Context, unmarshal func(interface{}) error) (interface{}, error) {
var req google_protobuf1.Empty
if err := unmarshal(&req); err != nil {
return nil, err
}
return svc.ShimInfo(ctx, &req)
},
"Update": func(ctx context.Context, unmarshal func(interface{}) error) (interface{}, error) {
var req UpdateTaskRequest
if err := unmarshal(&req); err != nil {
return nil, err
}
return svc.Update(ctx, &req)
},
"Wait": func(ctx context.Context, unmarshal func(interface{}) error) (interface{}, error) {
var req WaitRequest
if err := unmarshal(&req); err != nil {
return nil, err
}
return svc.Wait(ctx, &req)
},
})
}
type shimClient struct {
client *github_com_stevvooe_ttrpc.Client
}
func NewShimClient(client *github_com_stevvooe_ttrpc.Client) ShimService {
return &shimClient{
client: client,
}
}
func (c *shimClient) State(ctx context.Context, req *StateRequest) (*StateResponse, error) {
var resp StateResponse
if err := c.client.Call(ctx, "containerd.runtime.linux.shim.v1.Shim", "State", req, &resp); err != nil {
return nil, err
}
return &resp, nil
}
func (c *shimClient) Create(ctx context.Context, req *CreateTaskRequest) (*CreateTaskResponse, error) {
var resp CreateTaskResponse
if err := c.client.Call(ctx, "containerd.runtime.linux.shim.v1.Shim", "Create", req, &resp); err != nil {
return nil, err
}
return &resp, nil
}
func (c *shimClient) Start(ctx context.Context, req *StartRequest) (*StartResponse, error) {
var resp StartResponse
if err := c.client.Call(ctx, "containerd.runtime.linux.shim.v1.Shim", "Start", req, &resp); err != nil {
return nil, err
}
return &resp, nil
}
func (c *shimClient) Delete(ctx context.Context, req *google_protobuf1.Empty) (*DeleteResponse, error) {
var resp DeleteResponse
if err := c.client.Call(ctx, "containerd.runtime.linux.shim.v1.Shim", "Delete", req, &resp); err != nil {
return nil, err
}
return &resp, nil
}
func (c *shimClient) DeleteProcess(ctx context.Context, req *DeleteProcessRequest) (*DeleteResponse, error) {
var resp DeleteResponse
if err := c.client.Call(ctx, "containerd.runtime.linux.shim.v1.Shim", "DeleteProcess", req, &resp); err != nil {
return nil, err
}
return &resp, nil
}
func (c *shimClient) ListPids(ctx context.Context, req *ListPidsRequest) (*ListPidsResponse, error) {
var resp ListPidsResponse
if err := c.client.Call(ctx, "containerd.runtime.linux.shim.v1.Shim", "ListPids", req, &resp); err != nil {
return nil, err
}
return &resp, nil
}
func (c *shimClient) Pause(ctx context.Context, req *google_protobuf1.Empty) (*google_protobuf1.Empty, error) {
var resp google_protobuf1.Empty
if err := c.client.Call(ctx, "containerd.runtime.linux.shim.v1.Shim", "Pause", req, &resp); err != nil {
return nil, err
}
return &resp, nil
}
func (c *shimClient) Resume(ctx context.Context, req *google_protobuf1.Empty) (*google_protobuf1.Empty, error) {
var resp google_protobuf1.Empty
if err := c.client.Call(ctx, "containerd.runtime.linux.shim.v1.Shim", "Resume", req, &resp); err != nil {
return nil, err
}
return &resp, nil
}
func (c *shimClient) Checkpoint(ctx context.Context, req *CheckpointTaskRequest) (*google_protobuf1.Empty, error) {
var resp google_protobuf1.Empty
if err := c.client.Call(ctx, "containerd.runtime.linux.shim.v1.Shim", "Checkpoint", req, &resp); err != nil {
return nil, err
}
return &resp, nil
}
func (c *shimClient) Kill(ctx context.Context, req *KillRequest) (*google_protobuf1.Empty, error) {
var resp google_protobuf1.Empty
if err := c.client.Call(ctx, "containerd.runtime.linux.shim.v1.Shim", "Kill", req, &resp); err != nil {
return nil, err
}
return &resp, nil
}
func (c *shimClient) Exec(ctx context.Context, req *ExecProcessRequest) (*google_protobuf1.Empty, error) {
var resp google_protobuf1.Empty
if err := c.client.Call(ctx, "containerd.runtime.linux.shim.v1.Shim", "Exec", req, &resp); err != nil {
return nil, err
}
return &resp, nil
}
func (c *shimClient) ResizePty(ctx context.Context, req *ResizePtyRequest) (*google_protobuf1.Empty, error) {
var resp google_protobuf1.Empty
if err := c.client.Call(ctx, "containerd.runtime.linux.shim.v1.Shim", "ResizePty", req, &resp); err != nil {
return nil, err
}
return &resp, nil
}
func (c *shimClient) CloseIO(ctx context.Context, req *CloseIORequest) (*google_protobuf1.Empty, error) {
var resp google_protobuf1.Empty
if err := c.client.Call(ctx, "containerd.runtime.linux.shim.v1.Shim", "CloseIO", req, &resp); err != nil {
return nil, err
}
return &resp, nil
}
func (c *shimClient) ShimInfo(ctx context.Context, req *google_protobuf1.Empty) (*ShimInfoResponse, error) {
var resp ShimInfoResponse
if err := c.client.Call(ctx, "containerd.runtime.linux.shim.v1.Shim", "ShimInfo", req, &resp); err != nil {
return nil, err
}
return &resp, nil
}
func (c *shimClient) Update(ctx context.Context, req *UpdateTaskRequest) (*google_protobuf1.Empty, error) {
var resp google_protobuf1.Empty
if err := c.client.Call(ctx, "containerd.runtime.linux.shim.v1.Shim", "Update", req, &resp); err != nil {
return nil, err
}
return &resp, nil
}
func (c *shimClient) Wait(ctx context.Context, req *WaitRequest) (*WaitResponse, error) {
var resp WaitResponse
if err := c.client.Call(ctx, "containerd.runtime.linux.shim.v1.Shim", "Wait", req, &resp); err != nil {
return nil, err
}
return &resp, nil
}
func (m *CreateTaskRequest) Unmarshal(dAtA []byte) error {
l := len(dAtA)
iNdEx := 0

1
vendor.conf
View File

@ -41,3 +41,4 @@ github.com/boltdb/bolt e9cf4fae01b5a8ff89d0ec6b32f0d9c9f79aefdd
google.golang.org/genproto d80a6e20e776b0b17a324d0ba1ab50a39c8e8944
golang.org/x/text 19e51611da83d6be54ddafce4a4af510cb3e9ea4
github.com/dmcgowan/go-tar 2e2c51242e8993c50445dab7c03c8e7febddd0cf
github.com/stevvooe/ttrpc bdb2ab7a8169e485e39421e666e15a505e575fd2

201
vendor/github.com/stevvooe/ttrpc/LICENSE generated vendored Normal file
View File

@ -0,0 +1,201 @@
Apache License
Version 2.0, January 2004
http://www.apache.org/licenses/
TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
1. Definitions.
"License" shall mean the terms and conditions for use, reproduction,
and distribution as defined by Sections 1 through 9 of this document.
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otherwise, or (ii) ownership of fifty percent (50%) or more of the
outstanding shares, or (iii) beneficial ownership of such entity.
"You" (or "Your") shall mean an individual or Legal Entity
exercising permissions granted by this License.
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including but not limited to software source code, documentation
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transformation or translation of a Source form, including but
not limited to compiled object code, generated documentation,
and conversions to other media types.
"Work" shall mean the work of authorship, whether in Source or
Object form, made available under the License, as indicated by a
copyright notice that is included in or attached to the work
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"Derivative Works" shall mean any work, whether in Source or Object
form, that is based on (or derived from) the Work and for which the
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of this License, Derivative Works shall not include works that remain
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"Contribution" shall mean any work of authorship, including
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designated in writing by the copyright owner as "Not a Contribution."
"Contributor" shall mean Licensor and any individual or Legal Entity
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2. Grant of Copyright License. Subject to the terms and conditions of
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(c) You must retain, in the Source form of any Derivative Works
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5. Submission of Contributions. Unless You explicitly state otherwise,
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the terms of any separate license agreement you may have executed
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8. Limitation of Liability. In no event and under no legal theory,
whether in tort (including negligence), contract, or otherwise,
unless required by applicable law (such as deliberate and grossly
negligent acts) or agreed to in writing, shall any Contributor be
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result of this License or out of the use or inability to use the
Work (including but not limited to damages for loss of goodwill,
work stoppage, computer failure or malfunction, or any and all
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the Work or Derivative Works thereof, You may choose to offer,
and charge a fee for, acceptance of support, warranty, indemnity,
or other liability obligations and/or rights consistent with this
License. However, in accepting such obligations, You may act only
on Your own behalf and on Your sole responsibility, not on behalf
of any other Contributor, and only if You agree to indemnify,
defend, and hold each Contributor harmless for any liability
incurred by, or claims asserted against, such Contributor by reason
of your accepting any such warranty or additional liability.
END OF TERMS AND CONDITIONS
APPENDIX: How to apply the Apache License to your work.
To apply the Apache License to your work, attach the following
boilerplate notice, with the fields enclosed by brackets "[]"
replaced with your own identifying information. (Don't include
the brackets!) The text should be enclosed in the appropriate
comment syntax for the file format. We also recommend that a
file or class name and description of purpose be included on the
same "printed page" as the copyright notice for easier
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Copyright [yyyy] [name of copyright owner]
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
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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.

50
vendor/github.com/stevvooe/ttrpc/README.md generated vendored Normal file
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@ -0,0 +1,50 @@
# ttrpc
GRPC for low-memory environments.
The existing grpc-go project requires a lot of memory overhead for importing
packages and at runtime. While this is great for many services with low density
requirements, this can be a problem when running a large number of services on
a single machine or on a machine with a small amount of memory.
Using the same GRPC definitions, this project reduces the binary size and
protocol overhead required. We do this by eliding the `net/http`, `net/http2`
and `grpc` package used by grpc replacing it with a lightweight framing
protocol. The result are smaller binaries that use less resident memory with
the same ease of use as GRPC.
Please note that while this project supports generating either end of the
protocol, the generated service definitions will be incompatible with regular
GRPC services, as they do not speak the same protocol.
# Usage
Create a gogo vanity binary (see
[`cmd/protoc-gen-gogottrpc/main.go`](cmd/protoc-gen-gogottrpc/main.go) for an
example with the ttrpc plugin enabled.
It's recommended to use [`protobuild`](https://github.com/stevvooe/protobuild)
to build the protobufs for this project, but this will work with protoc
directly, if required.
# Differences from GRPC
- The protocol stack has been replaced with a lighter protocol that doesn't
require http, http2 and tls.
- The client and server interface are identical whereas in GRPC there is a
client and server interface that are different.
- The Go stdlib context package is used instead.
- No support for streams yet.
# Status
Very new. YMMV.
TODO:
- [X] Plumb error codes and GRPC status
- [X] Remove use of any type and dependency on typeurl package
- [X] Ensure that protocol can support streaming in the future
- [ ] Document protocol layout
- [ ] Add testing under concurrent load to ensure
- [ ] Verify connection error handling

99
vendor/github.com/stevvooe/ttrpc/channel.go generated vendored Normal file
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@ -0,0 +1,99 @@
package ttrpc
import (
"bufio"
"context"
"encoding/binary"
"io"
"github.com/pkg/errors"
)
const (
messageHeaderLength = 10
messageLengthMax = 8 << 10
)
type messageType uint8
const (
messageTypeRequest messageType = 0x1
messageTypeResponse messageType = 0x2
)
// messageHeader represents the fixed-length message header of 10 bytes sent
// with every request.
type messageHeader struct {
Length uint32 // length excluding this header. b[:4]
StreamID uint32 // identifies which request stream message is a part of. b[4:8]
Type messageType // message type b[8]
Flags uint8 // reserved b[9]
}
func readMessageHeader(p []byte, r io.Reader) (messageHeader, error) {
_, err := io.ReadFull(r, p[:messageHeaderLength])
if err != nil {
return messageHeader{}, err
}
return messageHeader{
Length: binary.BigEndian.Uint32(p[:4]),
StreamID: binary.BigEndian.Uint32(p[4:8]),
Type: messageType(p[8]),
Flags: p[9],
}, nil
}
func writeMessageHeader(w io.Writer, p []byte, mh messageHeader) error {
binary.BigEndian.PutUint32(p[:4], mh.Length)
binary.BigEndian.PutUint32(p[4:8], mh.StreamID)
p[8] = byte(mh.Type)
p[9] = mh.Flags
_, err := w.Write(p[:])
return err
}
type channel struct {
bw *bufio.Writer
br *bufio.Reader
hrbuf [messageHeaderLength]byte // avoid alloc when reading header
hwbuf [messageHeaderLength]byte
}
func newChannel(w io.Writer, r io.Reader) *channel {
return &channel{
bw: bufio.NewWriter(w),
br: bufio.NewReader(r),
}
}
func (ch *channel) recv(ctx context.Context, p []byte) (messageHeader, error) {
mh, err := readMessageHeader(ch.hrbuf[:], ch.br)
if err != nil {
return messageHeader{}, err
}
if mh.Length > uint32(len(p)) {
return messageHeader{}, errors.Wrapf(io.ErrShortBuffer, "message length %v over buffer size %v", mh.Length, len(p))
}
if _, err := io.ReadFull(ch.br, p[:mh.Length]); err != nil {
return messageHeader{}, errors.Wrapf(err, "failed reading message")
}
return mh, nil
}
func (ch *channel) send(ctx context.Context, streamID uint32, t messageType, p []byte) error {
if err := writeMessageHeader(ch.bw, ch.hwbuf[:], messageHeader{Length: uint32(len(p)), StreamID: streamID, Type: t}); err != nil {
return err
}
_, err := ch.bw.Write(p)
if err != nil {
return err
}
return ch.bw.Flush()
}

204
vendor/github.com/stevvooe/ttrpc/client.go generated vendored Normal file
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@ -0,0 +1,204 @@
package ttrpc
import (
"context"
"net"
"sync"
"sync/atomic"
"github.com/gogo/protobuf/proto"
"github.com/pkg/errors"
"google.golang.org/grpc/status"
)
type Client struct {
codec codec
channel *channel
requestID uint32
sendRequests chan sendRequest
recvRequests chan recvRequest
closed chan struct{}
closeOnce sync.Once
done chan struct{}
err error
}
func NewClient(conn net.Conn) *Client {
c := &Client{
codec: codec{},
requestID: 1,
channel: newChannel(conn, conn),
sendRequests: make(chan sendRequest),
recvRequests: make(chan recvRequest),
closed: make(chan struct{}),
done: make(chan struct{}),
}
go c.run()
return c
}
func (c *Client) Call(ctx context.Context, service, method string, req, resp interface{}) error {
payload, err := c.codec.Marshal(req)
if err != nil {
return err
}
requestID := atomic.AddUint32(&c.requestID, 2)
request := Request{
Service: service,
Method: method,
Payload: payload,
}
if err := c.send(ctx, requestID, &request); err != nil {
return err
}
var response Response
if err := c.recv(ctx, requestID, &response); err != nil {
return err
}
if err := c.codec.Unmarshal(response.Payload, resp); err != nil {
return err
}
if response.Status == nil {
return errors.New("no status provided on response")
}
return status.ErrorProto(response.Status)
}
func (c *Client) Close() error {
c.closeOnce.Do(func() {
close(c.closed)
})
return nil
}
type sendRequest struct {
ctx context.Context
id uint32
msg interface{}
err chan error
}
func (c *Client) send(ctx context.Context, id uint32, msg interface{}) error {
errs := make(chan error, 1)
select {
case c.sendRequests <- sendRequest{
ctx: ctx,
id: id,
msg: msg,
err: errs,
}:
case <-ctx.Done():
return ctx.Err()
case <-c.done:
return c.err
}
select {
case err := <-errs:
return err
case <-ctx.Done():
return ctx.Err()
case <-c.done:
return c.err
}
}
type recvRequest struct {
id uint32
msg interface{}
err chan error
}
func (c *Client) recv(ctx context.Context, id uint32, msg interface{}) error {
errs := make(chan error, 1)
select {
case c.recvRequests <- recvRequest{
id: id,
msg: msg,
err: errs,
}:
case <-c.done:
return c.err
case <-ctx.Done():
return ctx.Err()
}
select {
case err := <-errs:
return err
case <-c.done:
return c.err
case <-ctx.Done():
return ctx.Err()
}
}
type received struct {
mh messageHeader
p []byte
err error
}
func (c *Client) run() {
defer close(c.done)
var (
waiters = map[uint32]recvRequest{}
queued = map[uint32]received{} // messages unmatched by waiter
incoming = make(chan received)
)
go func() {
// start one more goroutine to recv messages without blocking.
for {
var p [messageLengthMax]byte
mh, err := c.channel.recv(context.TODO(), p[:])
select {
case incoming <- received{
mh: mh,
p: p[:mh.Length],
err: err,
}:
case <-c.done:
return
}
}
}()
for {
select {
case req := <-c.sendRequests:
if p, err := proto.Marshal(req.msg.(proto.Message)); err != nil {
req.err <- err
} else {
req.err <- c.channel.send(req.ctx, req.id, messageTypeRequest, p)
}
case req := <-c.recvRequests:
if r, ok := queued[req.id]; ok {
req.err <- proto.Unmarshal(r.p, req.msg.(proto.Message))
}
waiters[req.id] = req
case r := <-incoming:
if r.err != nil {
c.err = r.err
return
}
if waiter, ok := waiters[r.mh.StreamID]; ok {
waiter.err <- proto.Unmarshal(r.p, waiter.msg.(proto.Message))
} else {
queued[r.mh.StreamID] = r
}
case <-c.closed:
return
}
}
}

26
vendor/github.com/stevvooe/ttrpc/codec.go generated vendored Normal file
View File

@ -0,0 +1,26 @@
package ttrpc
import (
"github.com/gogo/protobuf/proto"
"github.com/pkg/errors"
)
type codec struct{}
func (c codec) Marshal(msg interface{}) ([]byte, error) {
switch v := msg.(type) {
case proto.Message:
return proto.Marshal(v)
default:
return nil, errors.Errorf("ttrpc: cannot marshal unknown type: %T", msg)
}
}
func (c codec) Unmarshal(p []byte, msg interface{}) error {
switch v := msg.(type) {
case proto.Message:
return proto.Unmarshal(p, v)
default:
return errors.Errorf("ttrpc: cannot unmarshal into unknown type: %T", msg)
}
}

131
vendor/github.com/stevvooe/ttrpc/plugin/generator.go generated vendored Normal file
View File

@ -0,0 +1,131 @@
package plugin
import (
"strings"
"github.com/gogo/protobuf/protoc-gen-gogo/descriptor"
"github.com/gogo/protobuf/protoc-gen-gogo/generator"
)
type ttrpcGenerator struct {
*generator.Generator
generator.PluginImports
typeurlPkg generator.Single
ttrpcPkg generator.Single
contextPkg generator.Single
}
func init() {
generator.RegisterPlugin(new(ttrpcGenerator))
}
func (p *ttrpcGenerator) Name() string {
return "ttrpc"
}
func (p *ttrpcGenerator) Init(g *generator.Generator) {
p.Generator = g
}
func (p *ttrpcGenerator) Generate(file *generator.FileDescriptor) {
p.PluginImports = generator.NewPluginImports(p.Generator)
p.contextPkg = p.NewImport("context")
p.typeurlPkg = p.NewImport("github.com/containerd/typeurl")
p.ttrpcPkg = p.NewImport("github.com/stevvooe/ttrpc")
for _, service := range file.GetService() {
serviceName := service.GetName()
if pkg := file.GetPackage(); pkg != "" {
serviceName = pkg + "." + serviceName
}
p.genService(serviceName, service)
}
}
func (p *ttrpcGenerator) genService(fullName string, service *descriptor.ServiceDescriptorProto) {
serviceName := service.GetName() + "Service"
p.P()
p.P("type ", serviceName, " interface{")
p.In()
for _, method := range service.Method {
p.P(method.GetName(),
"(ctx ", p.contextPkg.Use(), ".Context, ",
"req *", p.typeName(method.GetInputType()), ") ",
"(*", p.typeName(method.GetOutputType()), ", error)")
}
p.Out()
p.P("}")
p.P()
// registration method
p.P("func Register", serviceName, "(srv *", p.ttrpcPkg.Use(), ".Server, svc ", serviceName, ") {")
p.In()
p.P(`srv.Register("`, fullName, `", map[string]`, p.ttrpcPkg.Use(), ".Method{")
p.In()
for _, method := range service.Method {
p.P(`"`, method.GetName(), `": `, `func(ctx context.Context, unmarshal func(interface{}) error) (interface{}, error) {`)
p.In()
p.P("var req ", p.typeName(method.GetInputType()))
p.P(`if err := unmarshal(&req); err != nil {`)
p.In()
p.P(`return nil, err`)
p.Out()
p.P(`}`)
p.P("return svc.", method.GetName(), "(ctx, &req)")
p.Out()
p.P("},")
}
p.Out()
p.P("})")
p.Out()
p.P("}")
clientType := service.GetName() + "Client"
clientStructType := strings.ToLower(clientType[:1]) + clientType[1:]
p.P()
p.P("type ", clientStructType, " struct{")
p.In()
p.P("client *", p.ttrpcPkg.Use(), ".Client")
p.Out()
p.P("}")
p.P()
p.P("func New", clientType, "(client *", p.ttrpcPkg.Use(), ".Client)", serviceName, "{")
p.In()
p.P("return &", clientStructType, "{")
p.In()
p.P("client: client,")
p.Out()
p.P("}")
p.Out()
p.P("}")
p.P()
for _, method := range service.Method {
p.P()
p.P("func (c *", clientStructType, ") ", method.GetName(),
"(ctx ", p.contextPkg.Use(), ".Context, ",
"req *", p.typeName(method.GetInputType()), ") ",
"(*", p.typeName(method.GetOutputType()), ", error) {")
p.In()
p.P("var resp ", p.typeName(method.GetOutputType()))
p.P("if err := c.client.Call(ctx, ", `"`+fullName+`", `, `"`+method.GetName()+`"`, ", req, &resp); err != nil {")
p.In()
p.P("return nil, err")
p.Out()
p.P("}")
p.P("return &resp, nil")
p.Out()
p.P("}")
}
}
func (p *ttrpcGenerator) objectNamed(name string) generator.Object {
p.Generator.RecordTypeUse(name)
return p.Generator.ObjectNamed(name)
}
func (p *ttrpcGenerator) typeName(str string) string {
return p.Generator.TypeName(p.objectNamed(str))
}

155
vendor/github.com/stevvooe/ttrpc/server.go generated vendored Normal file
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@ -0,0 +1,155 @@
package ttrpc
import (
"context"
"net"
"github.com/containerd/containerd/log"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/status"
)
type Server struct {
services *serviceSet
codec codec
}
func NewServer() *Server {
return &Server{
services: newServiceSet(),
}
}
func (s *Server) Register(name string, methods map[string]Method) {
s.services.register(name, methods)
}
func (s *Server) Shutdown(ctx context.Context) error {
// TODO(stevvooe): Wait on connection shutdown.
return nil
}
func (s *Server) Serve(l net.Listener) error {
for {
conn, err := l.Accept()
if err != nil {
log.L.WithError(err).Error("failed accept")
continue
}
go s.handleConn(conn)
}
return nil
}
func (s *Server) handleConn(conn net.Conn) {
defer conn.Close()
type (
request struct {
id uint32
req *Request
}
response struct {
id uint32
resp *Response
}
)
var (
ch = newChannel(conn, conn)
ctx, cancel = context.WithCancel(context.Background())
responses = make(chan response)
requests = make(chan request)
recvErr = make(chan error, 1)
done = make(chan struct{})
)
defer cancel()
defer close(done)
go func() {
defer close(recvErr)
var p [messageLengthMax]byte
for {
mh, err := ch.recv(ctx, p[:])
if err != nil {
recvErr <- err
return
}
if mh.Type != messageTypeRequest {
// we must ignore this for future compat.
continue
}
var req Request
if err := s.codec.Unmarshal(p[:mh.Length], &req); err != nil {
recvErr <- err
return
}
if mh.StreamID%2 != 1 {
// enforce odd client initiated identifiers.
select {
case responses <- response{
// even though we've had an invalid stream id, we send it
// back on the same stream id so the client knows which
// stream id was bad.
id: mh.StreamID,
resp: &Response{
Status: status.New(codes.InvalidArgument, "StreamID must be odd for client initiated streams").Proto(),
},
}:
case <-done:
}
continue
}
select {
case requests <- request{
id: mh.StreamID,
req: &req,
}:
case <-done:
}
}
}()
for {
select {
case request := <-requests:
go func(id uint32) {
p, status := s.services.call(ctx, request.req.Service, request.req.Method, request.req.Payload)
resp := &Response{
Status: status.Proto(),
Payload: p,
}
select {
case responses <- response{
id: id,
resp: resp,
}:
case <-done:
}
}(request.id)
case response := <-responses:
p, err := s.codec.Marshal(response.resp)
if err != nil {
log.L.WithError(err).Error("failed marshaling response")
return
}
if err := ch.send(ctx, response.id, messageTypeResponse, p); err != nil {
log.L.WithError(err).Error("failed sending message on channel")
return
}
case err := <-recvErr:
log.L.WithError(err).Error("error receiving message")
return
}
}
}

134
vendor/github.com/stevvooe/ttrpc/services.go generated vendored Normal file
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package ttrpc
import (
"context"
"io"
"os"
"path"
"github.com/gogo/protobuf/proto"
"github.com/pkg/errors"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/status"
)
type Method func(ctx context.Context, unmarshal func(interface{}) error) (interface{}, error)
type ServiceDesc struct {
Methods map[string]Method
// TODO(stevvooe): Add stream support.
}
type serviceSet struct {
services map[string]ServiceDesc
}
func newServiceSet() *serviceSet {
return &serviceSet{
services: make(map[string]ServiceDesc),
}
}
func (s *serviceSet) register(name string, methods map[string]Method) {
if _, ok := s.services[name]; ok {
panic(errors.Errorf("duplicate service %v registered", name))
}
s.services[name] = ServiceDesc{
Methods: methods,
}
}
func (s *serviceSet) call(ctx context.Context, serviceName, methodName string, p []byte) ([]byte, *status.Status) {
p, err := s.dispatch(ctx, serviceName, methodName, p)
st, ok := status.FromError(err)
if !ok {
st = status.New(convertCode(err), err.Error())
}
return p, st
}
func (s *serviceSet) dispatch(ctx context.Context, serviceName, methodName string, p []byte) ([]byte, error) {
method, err := s.resolve(serviceName, methodName)
if err != nil {
return nil, err
}
unmarshal := func(obj interface{}) error {
switch v := obj.(type) {
case proto.Message:
if err := proto.Unmarshal(p, v); err != nil {
return status.Errorf(codes.Internal, "ttrpc: error unmarshaling payload: %v", err.Error())
}
default:
return status.Errorf(codes.Internal, "ttrpc: error unsupported request type: %T", v)
}
return nil
}
resp, err := method(ctx, unmarshal)
if err != nil {
return nil, err
}
switch v := resp.(type) {
case proto.Message:
r, err := proto.Marshal(v)
if err != nil {
return nil, status.Errorf(codes.Internal, "ttrpc: error marshaling payload: %v", err.Error())
}
return r, nil
default:
return nil, status.Errorf(codes.Internal, "ttrpc: error unsupported response type: %T", v)
}
}
func (s *serviceSet) resolve(service, method string) (Method, error) {
srv, ok := s.services[service]
if !ok {
return nil, status.Errorf(codes.NotFound, "service %v", service)
}
mthd, ok := srv.Methods[method]
if !ok {
return nil, status.Errorf(codes.NotFound, "method %v", method)
}
return mthd, nil
}
// convertCode maps stdlib go errors into grpc space.
//
// This is ripped from the grpc-go code base.
func convertCode(err error) codes.Code {
switch err {
case nil:
return codes.OK
case io.EOF:
return codes.OutOfRange
case io.ErrClosedPipe, io.ErrNoProgress, io.ErrShortBuffer, io.ErrShortWrite, io.ErrUnexpectedEOF:
return codes.FailedPrecondition
case os.ErrInvalid:
return codes.InvalidArgument
case context.Canceled:
return codes.Canceled
case context.DeadlineExceeded:
return codes.DeadlineExceeded
}
switch {
case os.IsExist(err):
return codes.AlreadyExists
case os.IsNotExist(err):
return codes.NotFound
case os.IsPermission(err):
return codes.PermissionDenied
}
return codes.Unknown
}
func fullPath(service, method string) string {
return "/" + path.Join("/", service, method)
}

26
vendor/github.com/stevvooe/ttrpc/types.go generated vendored Normal file
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@ -0,0 +1,26 @@
package ttrpc
import (
"fmt"
spb "google.golang.org/genproto/googleapis/rpc/status"
)
type Request struct {
Service string `protobuf:"bytes,1,opt,name=service,proto3"`
Method string `protobuf:"bytes,2,opt,name=method,proto3"`
Payload []byte `protobuf:"bytes,3,opt,name=payload,proto3"`
}
func (r *Request) Reset() { *r = Request{} }
func (r *Request) String() string { return fmt.Sprintf("%+#v", r) }
func (r *Request) ProtoMessage() {}
type Response struct {
Status *spb.Status `protobuf:"bytes,1,opt,name=status,proto3"`
Payload []byte `protobuf:"bytes,2,opt,name=payload,proto3"`
}
func (r *Response) Reset() { *r = Response{} }
func (r *Response) String() string { return fmt.Sprintf("%+#v", r) }
func (r *Response) ProtoMessage() {}