Fix encoding for float64 and generate conversion for Timestamp

- fixes encoding/decoding of float64 - uses little endian (contrary to all other types)
- generates helper methods for vpe_types.Timestamp type
- adds usage code to simple-client and binapi-types examples

Change-Id: I2e83eee0629eb67964049406c50c7ee0a692ccaf
Signed-off-by: Ondrej Fabry <ofabry@cisco.com>

1 files changed, 28 insertions, 0 deletions

diff --git a/binapi/vpe_types/vpe_types.ba.go b/binapi/vpe_types/vpe_types.ba.go
index 473880d..b4d324f 100644
--- a/binapi/vpe_types/vpe_types.ba.go
+++ b/binapi/vpe_types/vpe_types.ba.go
@@ -15,6 +15,7 @@ package vpe_types
 
 import (
 	"strconv"
+	"time"
 
 	api "git.fd.io/govpp.git/api"
 )
@@ -79,6 +80,33 @@ type Timedelta float64
 // Timestamp defines alias 'timestamp'.
 type Timestamp float64
 
+func NewTimestamp(t time.Time) Timestamp {
+	sec := int64(t.Unix())
+	nsec := int32(t.Nanosecond())
+	ns := float64(sec) + float64(nsec/1e9)
+	return Timestamp(ns)
+}
+func (x Timestamp) ToTime() time.Time {
+	ns := int64(x * 1e9)
+	sec := ns / 1e9
+	nsec := ns % 1e9
+	return time.Unix(sec, nsec)
+}
+func (x Timestamp) String() string {
+	return x.ToTime().String()
+}
+func (x *Timestamp) MarshalText() ([]byte, error) {
+	return []byte(x.ToTime().Format(time.RFC3339Nano)), nil
+}
+func (x *Timestamp) UnmarshalText(text []byte) error {
+	t, err := time.Parse(time.RFC3339Nano, string(text))
+	if err != nil {
+		return err
+	}
+	*x = NewTimestamp(t)
+	return nil
+}
+
 // Version defines type 'version'.
 type Version struct {
 	Major         uint32 `binapi:"u32,name=major" json:"major,omitempty"`