gobinary

package for binary header in go.

install

go get github.com/asxalex/gobinary

usage

package main
import (
    "fmt"
    "github.com/asxalex/gobinary"
)
func main() {
    header := gobinary.NewBinaryHeader()
    header.AddField("version", 2)  // 2 bit for version
    header.AddField("MF", 1)       // 1 bit for M(ore)F(ragment)
    header.AddField("reserve1", 5) // 5 bit for reservation
    header.SetBitValue("version", 1) // set the version field to 1
    header.SetBitValue("MF", 1)      // set the MF to 1
    bin := header.ToBinary()         // get the binary according to the header
    fmt.Println(bin)
    // set the fields "versiong", "MF" and "reserve1"
    // accroding to the binary 0x80, that's to say, the
    // version field is set to 0b10, MF to 0b0, and reserve1 to 0b00000
    header.FromBinary([]byte{0x80})
}

test and benchmark

$ go test -v -bench=.
=== RUN   TestBinary
--- PASS: TestBinary (0.00s)
goos: darwin
goarch: amd64
pkg: gobinary
BenchmarkBinaryConversion-4        5000000           362 ns/op
PASS
ok      gobinary    2.189s

License

BSD