From 0f19cbc6e5b842fb271eedeed47f433d0c63ff2e Mon Sep 17 00:00:00 2001 From: Felix Lange Date: Wed, 9 Nov 2016 01:04:36 +0100 Subject: [PATCH] p2p/discv5: fix build with Go 1.5, delete package testimg --- p2p/discv5/testimg/1 | 173 ------------------ p2p/discv5/testimg/2 | 178 ------------------ p2p/discv5/testimg/testimg.1 | 191 ------------------- p2p/discv5/testimg/testimg.go | 335 ---------------------------------- p2p/discv5/ticket.go | 20 +- 5 files changed, 18 insertions(+), 879 deletions(-) delete mode 100644 p2p/discv5/testimg/1 delete mode 100644 p2p/discv5/testimg/2 delete mode 100644 p2p/discv5/testimg/testimg.1 delete mode 100644 p2p/discv5/testimg/testimg.go diff --git a/p2p/discv5/testimg/1 b/p2p/discv5/testimg/1 deleted file mode 100644 index f2acfdc06..000000000 --- a/p2p/discv5/testimg/1 +++ /dev/null @@ -1,173 +0,0 @@ -package main - -import ( - "bufio" - "encoding/binary" - "fmt" - "image" - "image/png" - "os" - "sort" - "strconv" - - "github.com/ethereum/go-ethereum/crypto" -) - -var xs, ys, maxTime int - -func set(pic *image.NRGBA, x, y, c, v int) { - if v > 255 { - v = 255 - } - if x >= 0 && x < xs && y >= 0 && y < ys { - pic.Pix[y*pic.Stride+x*4+c] = uint8(v) - } -} - -func main() { - topicHash := crypto.Keccak256Hash([]byte("foo")) - fmt.Println(topicHash) - topicPrefix := binary.BigEndian.Uint64(topicHash[:8]) - var nodes uint64Slice - - inputFile := "test.out" - if len(os.Args) > 1 { - inputFile = os.Args[1] - } - - f, _ := os.Open(inputFile) - scanner := bufio.NewScanner(f) - scanner.Split(bufio.ScanWords) - for scanner.Scan() { - w := scanner.Text() - if w == "*N" { - scanner.Scan() - prefix, _ := strconv.ParseUint(scanner.Text(), 16, 64) - nodes = append(nodes, prefix^topicPrefix) - } - if w == "*R" { - scanner.Scan() - time, _ := strconv.ParseInt(scanner.Text(), 10, 64) - if int(time) > maxTime { - maxTime = int(time) - } - } - } - f.Close() - sort.Sort(nodes) - nodeIdx := make(map[uint64]int) - for i, v := range nodes { - nodeIdx[v^topicPrefix] = i - } - - xs = maxTime / 10000 - ys = len(nodes) - - pic := image.NewNRGBA(image.Rect(0, 0, xs, ys)) - for y := 0; y < ys; y++ { - for x := 0; x < xs; x++ { - set(pic, x, y, 3, 255) - } - } - - pic2 := image.NewNRGBA(image.Rect(0, 0, xs, ys)) - for y := 0; y < ys; y++ { - for x := 0; x < xs; x++ { - set(pic2, x, y, 3, 255) - } - } - - f, _ = os.Open(inputFile) - scanner = bufio.NewScanner(f) - scanner.Split(bufio.ScanWords) - - nodeRad := make(map[uint64]int) - - for scanner.Scan() { - w := scanner.Text() - if w == "*R" { - scanner.Scan() - time, _ := strconv.ParseInt(scanner.Text(), 10, 64) - scanner.Scan() - prefix, _ := strconv.ParseUint(scanner.Text(), 16, 64) - scanner.Scan() - rad, _ := strconv.ParseInt(scanner.Text(), 10, 64) - if int(rad) != nodeRad[prefix] { - nodeRad[prefix] = int(rad) - radUint := uint64(rad) * ((^uint64(0)) / 1000000) - x := int(time * int64(xs) / int64(maxTime)) - y := sort.Search(ys, func(i int) bool { - return nodes[i] > radUint - }) - set(pic, x, y, 1, 255) - } - } - if w == "*MR" { - scanner.Scan() - time, _ := strconv.ParseInt(scanner.Text(), 10, 64) - scanner.Scan() - scanner.Scan() - rad, _ := strconv.ParseInt(scanner.Text(), 10, 64) - radUint := uint64(rad) * ((^uint64(0)) / 1000000) - x := int(time * int64(xs) / int64(maxTime)) - y := sort.Search(ys, func(i int) bool { - return nodes[i] > radUint - }) - set(pic, x, y, 0, 255) - } - if w == "*W" { - scanner.Scan() - time, _ := strconv.ParseInt(scanner.Text(), 10, 64) - scanner.Scan() - prefix, _ := strconv.ParseUint(scanner.Text(), 16, 64) - scanner.Scan() - wp, _ := strconv.ParseInt(scanner.Text(), 10, 64) - x := int(time * int64(xs) / int64(maxTime)) - y := nodeIdx[prefix] - set(pic2, x, y, 0, int(wp/100000)) - set(pic2, x, y, 1, int(wp/10000)) - set(pic2, x, y, 2, int(wp/1000)) - } - if w == "*+" { - scanner.Scan() - time, _ := strconv.ParseInt(scanner.Text(), 10, 64) - scanner.Scan() - prefix, _ := strconv.ParseUint(scanner.Text(), 16, 64) - x := int(time * int64(xs) / int64(maxTime)) - y := nodeIdx[prefix] - set(pic, x, y, 2, 255) - scanner.Scan() - } - } - f.Close() - - f, _ = os.Create("test.png") - w := bufio.NewWriter(f) - png.Encode(w, pic) - w.Flush() - f.Close() - - f, _ = os.Create("test2.png") - w = bufio.NewWriter(f) - png.Encode(w, pic2) - w.Flush() - f.Close() -} - -type uint64Slice []uint64 - -// Len is the number of elements in the collection. -func (s uint64Slice) Len() int { - return len(s) -} - -// Less reports whether the element with -// index i should sort before the element with index j. -func (s uint64Slice) Less(i, j int) bool { - return s[i] < s[j] -} - -// Swap swaps the elements with indexes i and j. -func (s uint64Slice) Swap(i, j int) { - s[i], s[j] = s[j], s[i] -} diff --git a/p2p/discv5/testimg/2 b/p2p/discv5/testimg/2 deleted file mode 100644 index 2638eff4f..000000000 --- a/p2p/discv5/testimg/2 +++ /dev/null @@ -1,178 +0,0 @@ -package main - -import ( - "bufio" - "encoding/binary" - "fmt" - "image" - "image/png" - "os" - "sort" - "strconv" - - "github.com/ethereum/go-ethereum/crypto" -) - -var xs, ys, maxTime int - -func set(pic *image.NRGBA, x, y, c, v int) { - if v > 255 { - v = 255 - } - if x >= 0 && x < xs && y >= 0 && y < ys { - pic.Pix[y*pic.Stride+x*4+c] = uint8(v) - } -} - -func main() { - topics := make(map[string]uint64) - var nodes uint64Slice - - inputFile := "test.out" - if len(os.Args) > 1 { - inputFile = os.Args[1] - } - - f, _ := os.Open(inputFile) - scanner := bufio.NewScanner(f) - scanner.Split(bufio.ScanWords) - for scanner.Scan() { - w := scanner.Text() - if w == "*N" { - scanner.Scan() - prefix, _ := strconv.ParseUint(scanner.Text(), 16, 64) - nodes = append(nodes, prefix^topicPrefix) - } - if w == "*R" { - scanner.Scan() - time, _ := strconv.ParseInt(scanner.Text(), 10, 64) - if int(time) > maxTime { - maxTime = int(time) - } - scanner.Scan() - topic := scanner.Text() - if _, ok := topics[topic]; !ok { - fmt.Println(topic) - topicHash := crypto.Keccak256Hash([]byte(topic)) - topics[topic] := binary.BigEndian.Uint64(topicHash[:8]) - } - } - } - f.Close() - sort.Sort(nodes) - nodeIdx := make(map[uint64]int) - for i, v := range nodes { - nodeIdx[v^topicPrefix] = i - } - - xs = maxTime / 10000 - ys = len(nodes) - - pic := image.NewNRGBA(image.Rect(0, 0, xs, ys)) - for y := 0; y < ys; y++ { - for x := 0; x < xs; x++ { - set(pic, x, y, 3, 255) - } - } - - pic2 := image.NewNRGBA(image.Rect(0, 0, xs, ys)) - for y := 0; y < ys; y++ { - for x := 0; x < xs; x++ { - set(pic2, x, y, 3, 255) - } - } - - f, _ = os.Open(inputFile) - scanner = bufio.NewScanner(f) - scanner.Split(bufio.ScanWords) - - nodeRad := make(map[uint64]int) - - for scanner.Scan() { - w := scanner.Text() - if w == "*R" { - scanner.Scan() - time, _ := strconv.ParseInt(scanner.Text(), 10, 64) - scanner.Scan() - prefix, _ := strconv.ParseUint(scanner.Text(), 16, 64) - scanner.Scan() - rad, _ := strconv.ParseInt(scanner.Text(), 10, 64) - if int(rad) != nodeRad[prefix] { - nodeRad[prefix] = int(rad) - radUint := uint64(rad) * ((^uint64(0)) / 1000000) - x := int(time * int64(xs) / int64(maxTime)) - y := sort.Search(ys, func(i int) bool { - return nodes[i] > radUint - }) - set(pic, x, y, 1, 255) - } - } - if w == "*MR" { - scanner.Scan() - time, _ := strconv.ParseInt(scanner.Text(), 10, 64) - scanner.Scan() - scanner.Scan() - rad, _ := strconv.ParseInt(scanner.Text(), 10, 64) - radUint := uint64(rad) * ((^uint64(0)) / 1000000) - x := int(time * int64(xs) / int64(maxTime)) - y := sort.Search(ys, func(i int) bool { - return nodes[i] > radUint - }) - set(pic, x, y, 0, 255) - } - if w == "*W" { - scanner.Scan() - time, _ := strconv.ParseInt(scanner.Text(), 10, 64) - scanner.Scan() - prefix, _ := strconv.ParseUint(scanner.Text(), 16, 64) - scanner.Scan() - wp, _ := strconv.ParseInt(scanner.Text(), 10, 64) - x := int(time * int64(xs) / int64(maxTime)) - y := nodeIdx[prefix] - set(pic2, x, y, 0, int(wp/100000)) - set(pic2, x, y, 1, int(wp/10000)) - set(pic2, x, y, 2, int(wp/1000)) - } - if w == "*+" { - scanner.Scan() - time, _ := strconv.ParseInt(scanner.Text(), 10, 64) - scanner.Scan() - prefix, _ := strconv.ParseUint(scanner.Text(), 16, 64) - x := int(time * int64(xs) / int64(maxTime)) - y := nodeIdx[prefix] - set(pic, x, y, 2, 255) - scanner.Scan() - } - } - f.Close() - - f, _ = os.Create("test.png") - w := bufio.NewWriter(f) - png.Encode(w, pic) - w.Flush() - f.Close() - - f, _ = os.Create("test2.png") - w = bufio.NewWriter(f) - png.Encode(w, pic2) - w.Flush() - f.Close() -} - -type uint64Slice []uint64 - -// Len is the number of elements in the collection. -func (s uint64Slice) Len() int { - return len(s) -} - -// Less reports whether the element with -// index i should sort before the element with index j. -func (s uint64Slice) Less(i, j int) bool { - return s[i] < s[j] -} - -// Swap swaps the elements with indexes i and j. -func (s uint64Slice) Swap(i, j int) { - s[i], s[j] = s[j], s[i] -} diff --git a/p2p/discv5/testimg/testimg.1 b/p2p/discv5/testimg/testimg.1 deleted file mode 100644 index 32268aa97..000000000 --- a/p2p/discv5/testimg/testimg.1 +++ /dev/null @@ -1,191 +0,0 @@ -package main - -import ( - "bufio" - "encoding/binary" - "fmt" - "image" - "image/png" - "os" - "sort" - "strconv" - - "github.com/ethereum/go-ethereum/crypto" -) - -var xs, ys, maxTime int - -func set(pic *image.NRGBA, x, y, c, v int) { - if v > 255 { - v = 255 - } - if x >= 0 && x < xs && y >= 0 && y < ys { - pic.Pix[y*pic.Stride+x*4+c] = uint8(v) - } -} - -func main() { - var nodes uint64Slice - - inputFile := "test.out" - if len(os.Args) > 1 { - inputFile = os.Args[1] - } - - topic := "foo" - if len(os.Args) > 2 { - topic = os.Args[2] - } - - topicHash := crypto.Keccak256Hash([]byte(topic)) - fmt.Println(topicHash) - topicPrefix := binary.BigEndian.Uint64(topicHash[:8]) - - f, _ := os.Open(inputFile) - scanner := bufio.NewScanner(f) - scanner.Split(bufio.ScanWords) - for scanner.Scan() { - w := scanner.Text() - if w == "*N" { - scanner.Scan() - prefix, _ := strconv.ParseUint(scanner.Text(), 16, 64) - nodes = append(nodes, prefix^topicPrefix) - } - if w == "*R" { - scanner.Scan() - time, _ := strconv.ParseInt(scanner.Text(), 10, 64) - if int(time) > maxTime { - maxTime = int(time) - } - } - } - f.Close() - sort.Sort(nodes) - nodeIdx := make(map[uint64]int) - for i, v := range nodes { - nodeIdx[v^topicPrefix] = i - } - - xs = maxTime / 10000 - ys = len(nodes) - - pic := image.NewNRGBA(image.Rect(0, 0, xs, ys)) - for y := 0; y < ys; y++ { - for x := 0; x < xs; x++ { - set(pic, x, y, 3, 255) - } - } - - pic2 := image.NewNRGBA(image.Rect(0, 0, xs, ys)) - for y := 0; y < ys; y++ { - for x := 0; x < xs; x++ { - set(pic2, x, y, 3, 255) - } - } - - f, _ = os.Open(inputFile) - scanner = bufio.NewScanner(f) - scanner.Split(bufio.ScanWords) - - nodeRad := make(map[uint64]int) - - for scanner.Scan() { - w := scanner.Text() - if w == "*R" { - scanner.Scan() - time, _ := strconv.ParseInt(scanner.Text(), 10, 64) - scanner.Scan() - if scanner.Text() == topic { - scanner.Scan() - prefix, _ := strconv.ParseUint(scanner.Text(), 16, 64) - scanner.Scan() - rad, _ := strconv.ParseInt(scanner.Text(), 10, 64) - if int(rad) != nodeRad[prefix] { - nodeRad[prefix] = int(rad) - radUint := uint64(rad) * ((^uint64(0)) / 1000000) - x := int(time * int64(xs) / int64(maxTime)) - y := sort.Search(ys, func(i int) bool { - return nodes[i] > radUint - }) - set(pic, x, y, 1, 255) - } - } - } - if w == "*MR" { - scanner.Scan() - time, _ := strconv.ParseInt(scanner.Text(), 10, 64) - scanner.Scan() - if scanner.Text() == topic { - scanner.Scan() - scanner.Scan() - rad, _ := strconv.ParseInt(scanner.Text(), 10, 64) - radUint := uint64(rad) * ((^uint64(0)) / 1000000) - x := int(time * int64(xs) / int64(maxTime)) - y := sort.Search(ys, func(i int) bool { - return nodes[i] > radUint - }) - set(pic, x, y, 0, 255) - } - } - if w == "*W" { - scanner.Scan() - time, _ := strconv.ParseInt(scanner.Text(), 10, 64) - scanner.Scan() - if scanner.Text() == topic { - scanner.Scan() - prefix, _ := strconv.ParseUint(scanner.Text(), 16, 64) - scanner.Scan() - wp, _ := strconv.ParseInt(scanner.Text(), 10, 64) - x := int(time * int64(xs) / int64(maxTime)) - y := nodeIdx[prefix] - set(pic2, x, y, 0, int(wp/100000)) - set(pic2, x, y, 1, int(wp/10000)) - set(pic2, x, y, 2, int(wp/1000)) - } - } - if w == "*+" { - scanner.Scan() - time, _ := strconv.ParseInt(scanner.Text(), 10, 64) - scanner.Scan() - if scanner.Text() == topic { - scanner.Scan() - prefix, _ := strconv.ParseUint(scanner.Text(), 16, 64) - x := int(time * int64(xs) / int64(maxTime)) - y := nodeIdx[prefix] - set(pic, x, y, 2, 255) - scanner.Scan() - } - } - } - f.Close() - - f, _ = os.Create("test.png") - w := bufio.NewWriter(f) - png.Encode(w, pic) - w.Flush() - f.Close() - - f, _ = os.Create("test2.png") - w = bufio.NewWriter(f) - png.Encode(w, pic2) - w.Flush() - f.Close() -} - -type uint64Slice []uint64 - -// Len is the number of elements in the collection. -func (s uint64Slice) Len() int { - return len(s) -} - -// Less reports whether the element with -// index i should sort before the element with index j. -func (s uint64Slice) Less(i, j int) bool { - return s[i] < s[j] -} - -// Swap swaps the elements with indexes i and j. -func (s uint64Slice) Swap(i, j int) { - s[i], s[j] = s[j], s[i] -} diff --git a/p2p/discv5/testimg/testimg.go b/p2p/discv5/testimg/testimg.go deleted file mode 100644 index dab918a77..000000000 --- a/p2p/discv5/testimg/testimg.go +++ /dev/null @@ -1,335 +0,0 @@ -package main - -import ( - "bufio" - "encoding/binary" - "fmt" - "image" - "image/png" - "math" - "os" - "sort" - "strconv" - - "github.com/ethereum/go-ethereum/crypto" -) - -var xs, ys, maxTime int -var minAbsTime, maxAbsTime int64 - -func set(pic *image.NRGBA, x, y, c, v int) { - if v > 255 { - v = 255 - } - if x >= 0 && x < xs && y >= 0 && y < ys { - pic.Pix[y*pic.Stride+x*4+c] = uint8(v) - } -} - -type nodeStats []struct{ wpSum, wpCnt, wpXcnt, regCnt, regXcnt uint64 } - -type nodeInfo struct { - maxMR int - topics map[string]struct{} -} - -const ( - regStatDiv = 60 - regStatYdiv = 30 -) - -type topicInfo struct { - prefix uint64 - nodes uint64Slice - nodeStats nodeStats - nodeIdx map[uint64]int - pic, pic2 *image.NRGBA - nodeRad map[uint64]int - regStats []int -} - -func main() { - var nodes uint64Slice - topics := make(map[string]*topicInfo) - - inputFile := "test.out" - if len(os.Args) > 1 { - inputFile = os.Args[1] - } - - f, _ := os.Open(inputFile) - scanner := bufio.NewScanner(f) - scanner.Split(bufio.ScanWords) - minAbsTime = math.MaxInt64 - for scanner.Scan() { - w := scanner.Text() - if w == "*N" { - scanner.Scan() - prefix, _ := strconv.ParseUint(scanner.Text(), 16, 64) - nodes = append(nodes, prefix) - } - if w == "*R" { - scanner.Scan() - time, _ := strconv.ParseInt(scanner.Text(), 10, 64) - if time > maxAbsTime { - maxAbsTime = time - } - if time < minAbsTime { - minAbsTime = time - } - scanner.Scan() - topic := scanner.Text() - if _, ok := topics[topic]; !ok { - fmt.Println(topic) - topicHash := crypto.Keccak256Hash([]byte(topic)) - topics[topic] = &topicInfo{prefix: binary.BigEndian.Uint64(topicHash[:8])} - } - } - } - f.Close() - - maxTime = int(maxAbsTime - minAbsTime) - xs = maxTime / 10000 - ys = len(nodes) - nodeIdx := make(map[uint64]int) - for i, v := range nodes { - nodeIdx[v] = i - } - nodeInfo := make([]nodeInfo, len(nodes)) - - for _, t := range topics { - t.nodes = make(uint64Slice, len(nodes)) - t.nodeStats = make(nodeStats, len(nodes)) - for i, v := range nodes { - t.nodes[i] = v ^ t.prefix - } - sort.Sort(t.nodes) - t.nodeIdx = make(map[uint64]int) - for i, v := range t.nodes { - t.nodeIdx[v^t.prefix] = i - } - - t.pic = image.NewNRGBA(image.Rect(0, 0, xs, ys)) - for y := 0; y < ys; y++ { - for x := 0; x < xs; x++ { - set(t.pic, x, y, 3, 255) - } - } - - t.pic2 = image.NewNRGBA(image.Rect(0, 0, xs, ys)) - for y := 0; y < ys; y++ { - for x := 0; x < xs; x++ { - set(t.pic2, x, y, 3, 255) - } - } - t.nodeRad = make(map[uint64]int) - t.regStats = make([]int, xs/regStatDiv+1) - } - - f, _ = os.Open(inputFile) - scanner = bufio.NewScanner(f) - scanner.Split(bufio.ScanWords) - statBegin := int64(40000000) - statEnd := int64(maxTime - 10000000) - - for scanner.Scan() { - w := scanner.Text() - if w == "*R" { - scanner.Scan() - time, _ := strconv.ParseInt(scanner.Text(), 10, 64) - time -= minAbsTime - scanner.Scan() - t := topics[scanner.Text()] - scanner.Scan() - prefix, _ := strconv.ParseUint(scanner.Text(), 16, 64) - scanner.Scan() - rad, _ := strconv.ParseInt(scanner.Text(), 10, 64) - if int(rad) != t.nodeRad[prefix] { - t.nodeRad[prefix] = int(rad) - radUint := uint64(rad) * ((^uint64(0)) / 1000000) - x := int(time * int64(xs) / int64(maxTime)) - y := sort.Search(ys, func(i int) bool { - return t.nodes[i] > radUint - }) - set(t.pic, x, y, 1, 255) - } - } - if w == "*MR" { - scanner.Scan() - time, _ := strconv.ParseInt(scanner.Text(), 10, 64) - time -= minAbsTime - scanner.Scan() - topic := scanner.Text() - t := topics[topic] - scanner.Scan() - prefix, _ := strconv.ParseUint(scanner.Text(), 16, 64) - scanner.Scan() - rad, _ := strconv.ParseInt(scanner.Text(), 10, 64) - radUint := uint64(rad) * ((^uint64(0)) / 1000000) - x := int(time * int64(xs) / int64(maxTime)) - y := sort.Search(ys, func(i int) bool { - return t.nodes[i] > radUint - }) - set(t.pic, x, y, 0, 255) - ni := nodeInfo[nodeIdx[prefix]] - if int(rad) > ni.maxMR { - ni.maxMR = int(rad) - if ni.topics == nil { - ni.topics = make(map[string]struct{}) - } - ni.topics[topic] = struct{}{} - } - nodeInfo[nodeIdx[prefix]] = ni - } - if w == "*W" { - scanner.Scan() - time, _ := strconv.ParseInt(scanner.Text(), 10, 64) - time -= minAbsTime - scanner.Scan() - t := topics[scanner.Text()] - scanner.Scan() - prefix, _ := strconv.ParseUint(scanner.Text(), 16, 64) - scanner.Scan() - wp, _ := strconv.ParseInt(scanner.Text(), 10, 64) - x := int(time * int64(xs) / int64(maxTime)) - y := t.nodeIdx[prefix] - if time >= statBegin && time < statEnd { - t.nodeStats[y].wpSum += uint64(wp) - if wp >= 600000 { - t.nodeStats[y].wpXcnt++ - } - t.nodeStats[y].wpCnt++ - } - /*set(t.pic2, x, y, 0, int(wp/100000)) - set(t.pic2, x, y, 1, int(wp/10000)) - set(t.pic2, x, y, 2, int(wp/1000))*/ - if wp >= 1800000 { - set(t.pic2, x, y, 0, 255) - } - if wp >= 600000 { - set(t.pic2, x, y, 1, 255) - } - if wp >= 60000 { - set(t.pic2, x, y, 2, 255) - } - } - if w == "*+" { - scanner.Scan() - time, _ := strconv.ParseInt(scanner.Text(), 10, 64) - time -= minAbsTime - scanner.Scan() - t := topics[scanner.Text()] - scanner.Scan() - prefix, _ := strconv.ParseUint(scanner.Text(), 16, 64) - x := int(time * int64(xs) / int64(maxTime)) - if x < xs { - t.regStats[x/regStatDiv]++ - } - y := t.nodeIdx[prefix] - set(t.pic, x, y, 2, 255) - scanner.Scan() - prefix2, _ := strconv.ParseUint(scanner.Text(), 16, 64) - y2 := t.nodeIdx[prefix2] - if time >= statBegin && time < statEnd { - t.nodeStats[y].regCnt++ - t.nodeStats[y2].regXcnt++ - } - } - } - f.Close() - - for tt, t := range topics { - f, _ = os.Create("test_" + tt + ".png") - w := bufio.NewWriter(f) - png.Encode(w, t.pic) - w.Flush() - f.Close() - - for x := 0; x < xs; x++ { - yy := t.regStats[x/regStatDiv] / regStatYdiv - if yy > ys { - yy = ys - } - for y := 0; y < yy; y++ { - set(t.pic2, x, ys-1-y, 1, 255) - } - } - - f, _ = os.Create("test2_" + tt + ".png") - w = bufio.NewWriter(f) - png.Encode(w, t.pic2) - w.Flush() - f.Close() - - if statEnd > statBegin { - xxs := len(t.nodeStats) - yys := 1000 - yyh := yys / 2 - pic3 := image.NewNRGBA(image.Rect(0, 0, xxs, yys)) - for y := 0; y < yys; y++ { - for x := 0; x < xxs; x++ { - set(pic3, x, y, 3, 255) - } - } - for x := 0; x < xxs; x++ { - wpy := 0 - if t.nodeStats[x].wpCnt > 0 { - // wpy = int(t.nodeStats[x].wpSum / t.nodeStats[x].wpCnt / 10000) - wpy = int(uint64(yyh) * t.nodeStats[x].wpXcnt / t.nodeStats[x].wpCnt) - } - if wpy > yyh { - wpy = yyh - } - for y := 0; y < wpy; y++ { - set(pic3, x, yys-1-y, 1, 255) - } - regy := int(t.nodeStats[x].regCnt * 2400000 / uint64(statEnd-statBegin)) - if regy > yyh { - regy = yyh - } - for y := 0; y < regy; y++ { - set(pic3, x, yyh-1-y, 2, 255) - } - regy2 := int(t.nodeStats[x].regXcnt * 2400000 / uint64(statEnd-statBegin)) - if regy2 > yyh { - regy2 = yyh - } - for y := 0; y < regy2; y++ { - set(pic3, x, yyh-1-y, 0, 255) - } - } - - f, _ = os.Create("test3_" + tt + ".png") - w = bufio.NewWriter(f) - png.Encode(w, pic3) - w.Flush() - f.Close() - } - } - - for i, ni := range nodeInfo { - fmt.Printf("%d %016x maxMR = %d ", i, nodes[i], ni.maxMR) - for t, _ := range ni.topics { - fmt.Printf(" %s", t) - } - fmt.Println() - } -} - -type uint64Slice []uint64 - -// Len is the number of elements in the collection. -func (s uint64Slice) Len() int { - return len(s) -} - -// Less reports whether the element with -// index i should sort before the element with index j. -func (s uint64Slice) Less(i, j int) bool { - return s[i] < s[j] -} - -// Swap swaps the elements with indexes i and j. -func (s uint64Slice) Swap(i, j int) { - s[i], s[j] = s[j], s[i] -} diff --git a/p2p/discv5/ticket.go b/p2p/discv5/ticket.go index e256d7679..3f9711ec0 100644 --- a/p2p/discv5/ticket.go +++ b/p2p/discv5/ticket.go @@ -766,10 +766,26 @@ func (r *topicRadius) targetForBucket(bucket int) common.Hash { prefix := r.topicHashPrefix ^ xor var target common.Hash binary.BigEndian.PutUint64(target[0:8], prefix) - rand.Read(target[8:]) + globalRandRead(target[8:]) return target } +// package rand provides a Read function in Go 1.6 and later, but +// we can't use it yet because we still support Go 1.5. +func globalRandRead(b []byte) { + pos := 0 + val := 0 + for n := 0; n < len(b); n++ { + if pos == 0 { + val = rand.Int() + pos = 7 + } + b[n] = byte(val) + val >>= 8 + pos-- + } +} + func (r *topicRadius) isInRadius(addrHash common.Hash) bool { nodePrefix := binary.BigEndian.Uint64(addrHash[0:8]) dist := nodePrefix ^ r.topicHashPrefix @@ -926,7 +942,7 @@ func (r *topicRadius) nextTarget(forceRegular bool) lookupInfo { prefix := r.topicHashPrefix ^ rnd var target common.Hash binary.BigEndian.PutUint64(target[0:8], prefix) - rand.Read(target[8:]) + globalRandRead(target[8:]) return lookupInfo{target: target, topic: r.topic, radiusLookup: false} }