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//go:build race
package utils
import (
"crypto/sha512"
"fmt"
"runtime"
)
func SetChecker(b []byte) {
if len(b) == 0 {
return
}
c := checkIfConst(b)
go c.isStillConst()
runtime.SetFinalizer(c, (*constSlice).isStillConst)
}
type constSlice struct {
b []byte
checksum [64]byte
}
func checkIfConst(b []byte) *constSlice {
c := &constSlice{b: b}
c.checksum = sha512.Sum512(c.b)
return c
}
func (c *constSlice) isStillConst() {
if sha512.Sum512(c.b) != c.checksum {
panic(fmt.Sprintf("mutable access detected 0x%012x", &c.b[0]))
}
}
|
