/
rand.go
39 lines (33 loc) · 1.09 KB
/
rand.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
// Copyright (C) 2017, 2018, 2019 EGAAS S.A.
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or (at
// your option) any later version.
//
// This program is distributed in the hope that it will be useful, but
// WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
package utils
import (
"math/rand"
"github.com/AplaProject/go-apla/packages/crypto"
)
type Rand struct {
src *rand.Rand
}
func (r *Rand) BytesSeed(b []byte) *rand.Rand {
seed, _ := crypto.CalcChecksum(b)
r.src.Seed(int64(seed))
return r.src
}
func NewRand(seed int64) *Rand {
return &Rand{
src: rand.New(rand.NewSource(seed)),
}
}