add low level IDR encoding demo

benchmarks.go

@@ -20,6 +20,7 @@ import (
 	"github.com/alecthomas/go_serialization_benchmarks/internal/serializers/gotiny"
 	"github.com/alecthomas/go_serialization_benchmarks/internal/serializers/hprose"
 	"github.com/alecthomas/go_serialization_benchmarks/internal/serializers/hprose2"
+	"github.com/alecthomas/go_serialization_benchmarks/internal/serializers/idr"
 	"github.com/alecthomas/go_serialization_benchmarks/internal/serializers/ikea"
 	"github.com/alecthomas/go_serialization_benchmarks/internal/serializers/jsoniter"
 	"github.com/alecthomas/go_serialization_benchmarks/internal/serializers/mongobson"
@@ -454,6 +455,15 @@ var benchmarkCases = []BenchmarkCase{
 		UnsafeStringUnmarshal: true,
 		TimeSupport:           TSNoSupport,
 		APIKind:               AKManual,
+	}, {
+		Name: "idr",
+		URL:  "github.com/chmike/ditp",
+		New:  idr.NewIDRSerializer,
+
+		BufferReuseMarshal: true,
+		TimeSupport:        TSFullTzOffset,
+		APIKind:            AKManual,
+		Notes:              []string{"low level IDR encoding demo with same nsec time encoding as benc"},
 	}, {
 		Name: "baseline",
 		URL:  "",

go.mod

@@ -35,6 +35,7 @@ require (
 )
 
 require (
+	github.com/chmike/ditp v0.0.0-20240618130435-627cf7ce9ad6 // indirect
 	github.com/nazarifard/copi v0.0.0-20240609072615-763316f77579 // indirect
 	github.com/nazarifard/fastape v0.0.0-20240611084216-abaecf150e5b // indirect
 )

go.sum

@@ -34,6 +34,8 @@ github.com/bketelsen/crypt v0.0.3-0.20200106085610-5cbc8cc4026c/go.mod h1:MKsuJm
 github.com/calmh/xdr v1.1.0 h1:U/Dd4CXNLoo8EiQ4ulJUXkgO1/EyQLgDKLgpY1SOoJE=
 github.com/calmh/xdr v1.1.0/go.mod h1:E8sz2ByAdXC8MbANf1LCRYzedSnnc+/sXXJs/PVqoeg=
 github.com/cespare/xxhash v1.1.0/go.mod h1:XrSqR1VqqWfGrhpAt58auRo0WTKS1nRRg3ghfAqPWnc=
+github.com/chmike/ditp v0.0.0-20240618130435-627cf7ce9ad6 h1:FIQLUAh5cGcvt6Sm4wD2TUbDDJjCnmpv1A/lnJDBMh0=
+github.com/chmike/ditp v0.0.0-20240618130435-627cf7ce9ad6/go.mod h1:Az8w1aHUmNFs7+C7v41Y/cpXIBafvOs+7J7M/KGsM1c=
 github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw=
 github.com/coreos/bbolt v1.3.2/go.mod h1:iRUV2dpdMOn7Bo10OQBFzIJO9kkE559Wcmn+qkEiiKk=
 github.com/coreos/etcd v3.3.13+incompatible/go.mod h1:uF7uidLiAD3TWHmW31ZFd/JWoc32PjwdhPthX9715RE=

internal/serializers/idr/idr.go

@@ -0,0 +1,42 @@
+package idr
+
+import (
+	"time"
+
+	"github.com/alecthomas/go_serialization_benchmarks/goserbench"
+	"github.com/chmike/ditp/idr/low"
+)
+
+type IDRSerializer struct {
+	e low.Encoder
+}
+
+func (s IDRSerializer) Marshal(o interface{}) ([]byte, error) {
+	v := o.(*goserbench.SmallStruct)
+	e := low.Reset(s.e)
+	e = low.PutInt64(e, v.BirthDay.UnixNano())
+	e = low.PutFloat64(e, v.Money)
+	e = low.PutInt32(e, int32(v.Siblings))
+	e = low.PutBool(e, v.Spouse)
+	e = low.PutString(e, v.Name)
+	e = low.PutString(e, v.Phone)
+	return e, nil
+}
+
+func (s IDRSerializer) Unmarshal(d []byte, o interface{}) (err error) {
+	v := o.(*goserbench.SmallStruct)
+	_ = d[21]
+	d, v0 := low.Int64(d)
+	v.BirthDay = time.Unix(0, v0)
+	d, v.Money = low.Float64(d)
+	d, v1 := low.Int32(d)
+	v.Siblings = int(v1)
+	d, v.Spouse = low.Bool(d)
+	d, v.Name = low.String(d, 1<<14)
+	_, v.Phone = low.String(d, 20)
+	return nil
+}
+
+func NewIDRSerializer() goserbench.Serializer {
+	return IDRSerializer{e: make([]byte, 256)} // set initial buffer to 256 bytes
+}