containerd build clean on Solaris (#203)

* containerd build clean on Solaris

Signed-off-by: Amit Krishnan <krish.amit@gmail.com>

* Vendor golang.org/x/sys

Signed-off-by: Amit Krishnan <krish.amit@gmail.com>

api/grpc/server/server_linux.go

@@ -0,0 +1,59 @@
+package server
+
+import (
+	"fmt"
+
+	"github.com/docker/containerd/api/grpc/types"
+	"github.com/docker/containerd/specs"
+	"github.com/docker/containerd/supervisor"
+	"github.com/opencontainers/runc/libcontainer/system"
+	ocs "github.com/opencontainers/runtime-spec/specs-go"
+	"golang.org/x/net/context"
+)
+
+var clockTicksPerSecond = uint64(system.GetClockTicks())
+
+func (s *apiServer) AddProcess(ctx context.Context, r *types.AddProcessRequest) (*types.AddProcessResponse, error) {
+	process := &specs.ProcessSpec{
+		Terminal: r.Terminal,
+		Args:     r.Args,
+		Env:      r.Env,
+		Cwd:      r.Cwd,
+	}
+	process.User = ocs.User{
+		UID:            r.User.Uid,
+		GID:            r.User.Gid,
+		AdditionalGids: r.User.AdditionalGids,
+	}
+	process.Capabilities = r.Capabilities
+	process.ApparmorProfile = r.ApparmorProfile
+	process.SelinuxLabel = r.SelinuxLabel
+	process.NoNewPrivileges = r.NoNewPrivileges
+	for _, rl := range r.Rlimits {
+		process.Rlimits = append(process.Rlimits, ocs.Rlimit{
+			Type: rl.Type,
+			Soft: rl.Soft,
+			Hard: rl.Hard,
+		})
+	}
+	if r.Id == "" {
+		return nil, fmt.Errorf("container id cannot be empty")
+	}
+	if r.Pid == "" {
+		return nil, fmt.Errorf("process id cannot be empty")
+	}
+	e := &supervisor.AddProcessTask{}
+	e.ID = r.Id
+	e.PID = r.Pid
+	e.ProcessSpec = process
+	e.Stdin = r.Stdin
+	e.Stdout = r.Stdout
+	e.Stderr = r.Stderr
+	e.StartResponse = make(chan supervisor.StartResponse, 1)
+	s.sv.SendTask(e)
+	if err := <-e.ErrorCh(); err != nil {
+		return nil, err
+	}
+	<-e.StartResponse
+	return &types.AddProcessResponse{}, nil
+}