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package main
import (
"fmt"
"time"
"unsafe"
"github.com/valyala/fastjson"
)
//export go_filter
func go_filter(tag *uint8, tag_len uint, time_sec uint, time_nsec uint, record *uint8, record_len uint) *uint8 {
btag := unsafe.Slice(tag, tag_len) // Note, requires Go 1.17 (tinygo 0.20)
brecord := unsafe.Slice(record, record_len)
now := time.Unix(int64(time_sec), int64(time_nsec))
br := string(brecord)
var p fastjson.Parser
value, err := p.Parse(br)
if err != nil {
fmt.Println(err)
return nil
}
obj, err := value.Object()
if err != nil {
fmt.Println(err)
return nil
}
var arena fastjson.Arena
obj.Set("time", arena.NewString(now.String()))
obj.Set("tag", arena.NewString(string(btag)))
obj.Set("original", arena.NewString(br))
s := obj.String()
s += string(rune(0)) // Note: explicit null terminator.
rv := []byte(s)
return &rv[0]
}
func main() {}
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