Efficient Go serialization of struct to disk

Question

I\'ve been tasked to replace C++ code to Go and I\'m quite new to the Go APIs. I am using gob for encoding hundreds of key/value entries to disk pages but the gob encoding h

Answer 1

Use protobuf to efficiently encode your data.

https://github.com/golang/protobuf

Your main would look like this:

package main

import (
    "fmt"
    "log"

    "github.com/golang/protobuf/proto"
)

func main() {
    e := &Entry{
        Key: proto.String("k1"),
        Val: proto.String("v1"),
    }
    data, err := proto.Marshal(e)
    if err != nil {
        log.Fatal("marshaling error: ", err)
    }
    fmt.Println(data)
}

You create a file, example.proto like this:

package main;

message Entry {
    required string Key = 1;
    required string Val = 2;
}

You generate the go code from the proto file by running:

$ protoc --go_out=. *.proto

You can examine the generated file, if you wish.

You can run and see the results output:

$ go run *.go
[10 2 107 49 18 2 118 49]