mirror of
https://gitee.com/johng/gf.git
synced 2024-12-04 21:28:22 +08:00
64 lines
2.6 KiB
Go
64 lines
2.6 KiB
Go
package main
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import (
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"fmt"
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"net/http"
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"github.com/tabalt/gracehttp"
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"gitee.com/johng/gf/g/encoding/gbinary"
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"gitee.com/johng/gf/g/os/gproc"
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)
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func test() {
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http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
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fmt.Fprintf(w, "hello world")
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})
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s := gracehttp.NewServer(":8888", nil, gracehttp.DEFAULT_READ_TIMEOUT, gracehttp.DEFAULT_WRITE_TIMEOUT)
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err := s.ListenAndServe()
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if err != nil {
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fmt.Println(err)
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}
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}
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// 常见的二进制数据校验方式，生成校验结果
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func checksum(buffer []byte) uint32 {
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var checksum uint32
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for _, b := range buffer {
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checksum += uint32(b)
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}
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return checksum
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}
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// 数据解包，防止黏包
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func bufferToMsgs(buffer []byte) []*gproc.Msg {
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s := 0
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msgs := make([]*gproc.Msg, 0)
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for s < len(buffer) {
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fmt.Println(s)
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length := gbinary.DecodeToInt(buffer[s : s + 4])
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if length < 0 || length > len(buffer) {
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s++
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continue
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}
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checksum1 := gbinary.DecodeToUint32(buffer[s + 8 : s + 12])
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checksum2 := checksum(buffer[s + 12 : s + length])
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if checksum1 != checksum2 {
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s++
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continue
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}
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msgs = append(msgs, &gproc.Msg {
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Pid : gbinary.DecodeToInt(buffer[s + 4 : s + 8]),
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Data : buffer[s + 12 : s + length],
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})
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s += length
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}
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return msgs
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}
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func main() {
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b := []byte{26, 0, 0, 0, 60, 109, 0, 0, 84, 5, 0, 0, 104, 101, 108, 108, 111, 32, 112, 114, 111, 99, 101, 115, 115, 33, 26, 0, 0, 0, 60, 109, 0, 0, 84, 5, 0, 0, 104, 101, 108, 108, 111, 32, 112, 114, 111, 99, 101, 115, 115, 33, 26, 0, 0, 0, 60, 109, 0, 0, 84, 5, 0, 0, 104, 101, 108, 108, 111, 32, 112, 114, 111, 99, 101, 115, 115, 33, 26, 0, 0, 0, 60, 109, 0, 0, 84, 5, 0, 0, 104, 101, 108, 108, 111, 32, 112, 114, 111, 99, 101, 115, 115, 33, 26, 0, 0, 0, 60, 109, 0, 0, 84, 5, 0, 0, 104, 101, 108, 108, 111, 32, 112, 114, 111, 99, 101, 115, 115, 33, 26, 0, 0, 0, 60, 109, 0, 0, 84, 5, 0, 0, 104, 101, 108, 108, 111, 32, 112, 114, 111, 99, 101, 115, 115, 33, 26, 0, 0, 0, 60, 109, 0, 0, 84, 5, 0, 0, 104, 101, 108, 108, 111, 32, 112, 114, 111, 99, 101, 115, 115, 33, 26, 0, 0, 0, 60, 109, 0, 0, 84, 5, 0, 0, 104, 101, 108, 108, 111, 32, 112, 114, 111, 99, 101, 115, 115, 33, 26, 0, 0, 0, 60, 109, 0, 0, 84, 5, 0, 0, 104, 101, 108, 108, 111, 32, 112, 114, 111, 99, 101, 115, 115, 33, 26, 0, 0, 0, 60, 109, 0, 0, 84, 5, 0, 0, 104, 101, 108, 108, 111, 32, 112, 114, 111, 99, 101, 115, 115, 33, 26, 0, 0, 0, 60, 109, 0, 0, 84, 5, 0, 0, 104, 101, 108, 108, 111, 32, 112, 114, 111, 99, 101, 115, 115, 33}
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m := bufferToMsgs(b)
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fmt.Println(m)
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}
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