forked from TrueCloudLab/xk6-frostfs
[TrueCloudLab#22] datagen: Use local randomness source
`math/rand.Read` is deprecated. Signed-off-by: Evgenii Stratonikov <e.stratonikov@yadro.com>
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1 changed files with 3 additions and 5 deletions
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@ -22,6 +22,7 @@ type (
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Generator struct {
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Generator struct {
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vu modules.VU
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vu modules.VU
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size int
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size int
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rand *rand.Rand
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buf []byte
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buf []byte
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offset int
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offset int
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}
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}
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@ -35,10 +36,6 @@ type (
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// TailSize specifies number of extra random bytes in the buffer tail.
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// TailSize specifies number of extra random bytes in the buffer tail.
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const TailSize = 1024
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const TailSize = 1024
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func init() {
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rand.Seed(time.Now().UnixNano())
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}
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func NewGenerator(vu modules.VU, size int) Generator {
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func NewGenerator(vu modules.VU, size int) Generator {
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if size <= 0 {
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if size <= 0 {
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panic("size should be positive")
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panic("size should be positive")
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@ -46,6 +43,7 @@ func NewGenerator(vu modules.VU, size int) Generator {
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return Generator{
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return Generator{
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vu: vu,
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vu: vu,
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size: size,
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size: size,
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rand: rand.New(rand.NewSource(time.Now().UnixNano())),
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buf: make([]byte, size+TailSize),
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buf: make([]byte, size+TailSize),
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}
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}
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}
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}
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@ -66,7 +64,7 @@ func (g *Generator) GenPayload(calcHash bool) GenPayloadResponse {
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func (g *Generator) nextSlice() []byte {
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func (g *Generator) nextSlice() []byte {
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if g.offset >= TailSize {
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if g.offset >= TailSize {
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g.offset = 0
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g.offset = 0
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rand.Read(g.buf) // Per docs, err is always nil here
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g.rand.Read(g.buf) // Per docs, err is always nil here
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}
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}
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result := g.buf[g.offset : g.offset+g.size]
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result := g.buf[g.offset : g.offset+g.size]
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