Add Self struct to guest

guest/system/self.go

@@ -0,0 +1,44 @@
+package system
+
+import (
+	"context"
+
+	"capnproto.org/go/capnp/v3"
+	api "github.com/wetware/pkg/api/process"
+	"github.com/wetware/pkg/cap/csp"
+)
+
+type Self struct {
+	Args []string
+	Caps []capnp.Client
+	CID  string
+	PID  uint32
+}
+
+func Init(ctx context.Context) (Self, error) {
+	var (
+		s   Self
+		err error
+	)
+
+	b := Bootstrap[api.BootContext](ctx)
+	bCtx := csp.BootCtx(b)
+
+	s.Args, err = bCtx.Args(ctx)
+	if err != nil {
+		return s, err
+	}
+
+	s.Caps, err = bCtx.Caps(ctx)
+	if err != nil {
+		return s, err
+	}
+
+	s.CID, err = bCtx.Cid(ctx)
+	if err != nil {
+		return s, err
+	}
+
+	s.PID, err = bCtx.Pid(ctx)
+	return s, err
+}