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优化代码结构

This commit is contained in:
fumiama
2021-12-28 14:28:02 +08:00
parent 45d1ef3abd
commit 6c42fe9db9
9 changed files with 77 additions and 22 deletions

View File

@@ -1,13 +1,16 @@
package head
import (
"crypto/rand"
"encoding/json"
"unsafe"
blake2b "github.com/minio/blake2b-simd"
)
// Packet 是发送和接收的最小单位
type Packet struct {
// DataSZ len(Data)
// 不得超过 65507-head 字节
DataSZ uint32
// Proto 详见 head
Proto uint8
@@ -47,11 +50,20 @@ func (p *Packet) UnMashal(data []byte) error {
}
// Mashal 将自身数据编码为 []byte
// 同时生成 Hash
func (p *Packet) Mashal(src string, dst string) ([]byte, error) {
p.DataSZ = uint32(len(p.Data))
p.Src = src
p.Dst = dst
rand.Reader.Read(p.Hash[:])
return json.Marshal(p)
}
// FillHash 生成 p.Data 的 Hash
func (p *Packet) FillHash() {
sum := blake2b.New256().Sum(p.Data)
p.Hash = *(*[32]byte)(*(*unsafe.Pointer)(unsafe.Pointer(&sum)))
}
func (p *Packet) IsVaildHash() bool {
sum := blake2b.New256().Sum(p.Data)
return *(*[32]byte)(*(*unsafe.Pointer)(unsafe.Pointer(&sum))) == p.Hash
}