test(e2e-chain): Go mock client (record + zoom/window/trigger)
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
Martino Ferrari
Executable
BIN
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@@ -0,0 +1,7 @@
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module chain-client
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go 1.21
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require github.com/gorilla/websocket v1.5.1
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require golang.org/x/net v0.17.0 // indirect
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@@ -0,0 +1,4 @@
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github.com/gorilla/websocket v1.5.1 h1:gmztn0JnHVt9JZquRuzLw3g4wouNVzKL15iLr/zn/QY=
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github.com/gorilla/websocket v1.5.1/go.mod h1:x3kM2JMyaluk02fnUJpQuwD2dCS5NDG2ZHL0uE0tcaY=
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golang.org/x/net v0.17.0 h1:pVaXccu2ozPjCXewfr1S7xza/zcXTity9cCdXQYSjIM=
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golang.org/x/net v0.17.0/go.mod h1:NxSsAGuq816PNPmqtQdLE42eU2Fs7NoRIZrHJAlaCOE=
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@@ -0,0 +1,622 @@
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// Command chain-client is the authoritative mock StreamHub client for the
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// streaming-chain E2E suite. It connects to a running StreamHub, records the
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// live binary stream to disk (received_<id>.bin), and runs behavioural checks
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// (live / zoom / window / trigger), writing the results to checks_<id>.json.
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//
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// Unlike the streamhub smoke test, individual check failures are *recorded*
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// (not fatal): only connection/protocol corruption exits non-zero, so one
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// scenario's quirk never aborts the matrix. The waveform validator and report
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// decide overall pass/fail from checks_<id>.json + the recorded stream.
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//
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// received_<id>.bin format ("RCV1"):
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//
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// magic[4]="RCV1"; [u32 nSig]; per signal:
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// [u16 keyLen][key][u32 N][N×f64 t][N×f64 v]
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//
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// where each signal's samples are merged across all v1 pushes, sorted by time
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// and de-duplicated (same timestamp kept once).
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package main
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import (
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"encoding/binary"
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"encoding/json"
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"flag"
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"fmt"
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"log"
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"math"
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"os"
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"path/filepath"
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"sort"
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"strings"
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"time"
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"github.com/gorilla/websocket"
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)
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var (
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hubFlag = flag.String("hub", "127.0.0.1:8090", "StreamHub host:port")
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scenario = flag.String("scenario", "", "scenario id (artifact basename)")
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trigsig = flag.String("trigsig", "", "trigger signal key src:sig (empty = skip)")
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trigthr = flag.Float64("trigthr", math.NaN(), "trigger threshold (NaN = use mean)")
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checksCSV = flag.String("checks", "live,zoom,window,trigger", "checks to run")
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outDir = flag.String("out", "/tmp/chain_e2e", "artifact output dir")
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durSec = flag.Float64("dur", 4.0, "live recording duration (s)")
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timeout = flag.Duration("timeout", 90*time.Second, "overall timeout")
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verbose = flag.Bool("v", false, "log every event")
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)
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// ── wire types ────────────────────────────────────────────────────────────
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type sourceInfo struct {
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ID string `json:"id"`
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Label string `json:"label"`
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Addr string `json:"addr"`
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State string `json:"state"`
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}
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type signalInfo struct {
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Name string `json:"name"`
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TypeCode uint32 `json:"typeCode"`
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NumRows uint32 `json:"numRows"`
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NumCols uint32 `json:"numCols"`
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TimeMode int `json:"timeMode"`
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Rate float64 `json:"samplingRate"`
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}
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type points struct {
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T []float64 `json:"t"`
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V []float64 `json:"v"`
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}
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type event struct {
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Type string `json:"type"`
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Sources json.RawMessage `json:"sources"`
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SourceID string `json:"sourceId"`
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Signals json.RawMessage `json:"signals"`
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ReqID uint32 `json:"reqId"`
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State string `json:"state"`
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TrigTime float64 `json:"trigTime"`
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}
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type pushFrame struct {
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sourceID string
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signals map[string]points
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}
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type captureFrame struct {
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trigTime, preSec, postSec float64
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signals map[string]points
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}
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// ── binary parsers (from Test/E2E/streamhub/main.go) ────────────────────────
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func parsePush(b []byte) (*pushFrame, error) {
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if len(b) < 2 || b[0] != 1 {
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return nil, fmt.Errorf("not a v1 frame")
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}
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idLen := int(b[1])
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off := 2
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if len(b) < off+idLen+4 {
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return nil, fmt.Errorf("truncated header")
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}
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f := &pushFrame{sourceID: string(b[off : off+idLen]), signals: map[string]points{}}
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off += idLen
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nSig := int(binary.LittleEndian.Uint32(b[off:]))
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off += 4
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for s := 0; s < nSig; s++ {
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if len(b) < off+2 {
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return nil, fmt.Errorf("truncated keyLen (sig %d)", s)
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}
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keyLen := int(binary.LittleEndian.Uint16(b[off:]))
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off += 2
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if len(b) < off+keyLen+4 {
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return nil, fmt.Errorf("truncated key (sig %d)", s)
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}
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key := string(b[off : off+keyLen])
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off += keyLen
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n := int(binary.LittleEndian.Uint32(b[off:]))
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off += 4
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if len(b) < off+16*n {
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return nil, fmt.Errorf("truncated data (sig %s n=%d)", key, n)
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}
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pts := points{T: make([]float64, n), V: make([]float64, n)}
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for i := 0; i < n; i++ {
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pts.T[i] = math.Float64frombits(binary.LittleEndian.Uint64(b[off+8*i:]))
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}
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off += 8 * n
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for i := 0; i < n; i++ {
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pts.V[i] = math.Float64frombits(binary.LittleEndian.Uint64(b[off+8*i:]))
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}
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off += 8 * n
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f.signals[key] = pts
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}
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return f, nil
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}
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func parseCapture(b []byte) (*captureFrame, error) {
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if len(b) < 1+24+4 || b[0] != 2 {
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return nil, fmt.Errorf("not a v2 frame")
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}
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rd := func(off int) float64 { return math.Float64frombits(binary.LittleEndian.Uint64(b[off:])) }
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f := &captureFrame{trigTime: rd(1), preSec: rd(9), postSec: rd(17), signals: map[string]points{}}
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off := 25
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nSig := int(binary.LittleEndian.Uint32(b[off:]))
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off += 4
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for s := 0; s < nSig; s++ {
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keyLen := int(binary.LittleEndian.Uint16(b[off:]))
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off += 2
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key := string(b[off : off+keyLen])
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off += keyLen
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n := int(binary.LittleEndian.Uint32(b[off:]))
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off += 4
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if len(b) < off+16*n {
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return nil, fmt.Errorf("truncated capture (sig %s n=%d)", key, n)
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}
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pts := points{T: make([]float64, n), V: make([]float64, n)}
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for i := 0; i < n; i++ {
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pts.T[i] = math.Float64frombits(binary.LittleEndian.Uint64(b[off+8*i:]))
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}
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off += 8 * n
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for i := 0; i < n; i++ {
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pts.V[i] = math.Float64frombits(binary.LittleEndian.Uint64(b[off+8*i:]))
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}
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off += 8 * n
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f.signals[key] = pts
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}
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return f, nil
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}
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// ── client ──────────────────────────────────────────────────────────────────
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type client struct {
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ws *websocket.Conn
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deadline time.Time
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sources []sourceInfo
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configs map[string][]signalInfo
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pushes []*pushFrame
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zooms map[uint32]map[string]points
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trigSt []string
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captures []*captureFrame
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}
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func (c *client) send(v interface{}) {
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b, _ := json.Marshal(v)
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if err := c.ws.WriteMessage(websocket.TextMessage, b); err != nil {
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fatal("ws write: %v", err)
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}
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}
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func (c *client) pump() {
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c.ws.SetReadDeadline(time.Now().Add(300 * time.Millisecond))
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mt, data, err := c.ws.ReadMessage()
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if err != nil {
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if websocket.IsUnexpectedCloseError(err) {
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fatal("ws closed: %v", err)
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}
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return
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}
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switch mt {
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case websocket.BinaryMessage:
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if len(data) == 0 {
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return
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}
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switch data[0] {
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case 1:
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if f, err := parsePush(data); err == nil {
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c.pushes = append(c.pushes, f)
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} else {
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fatal("bad v1 frame: %v", err)
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}
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case 2:
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if f, err := parseCapture(data); err == nil {
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c.captures = append(c.captures, f)
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} else {
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fatal("bad v2 frame: %v", err)
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}
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default:
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fatal("unknown binary frame version %d", data[0])
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}
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case websocket.TextMessage:
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var ev event
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if err := json.Unmarshal(data, &ev); err != nil {
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return
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}
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if *verbose {
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log.Printf("event %-12s %.140s", ev.Type, data)
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}
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switch ev.Type {
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case "sources":
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var s []sourceInfo
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if json.Unmarshal(ev.Sources, &s) == nil {
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c.sources = s
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}
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case "config":
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var s []signalInfo
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if json.Unmarshal(ev.Signals, &s) == nil {
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c.configs[ev.SourceID] = s
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}
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case "zoom":
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var body struct {
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Signals map[string]points `json:"signals"`
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}
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if json.Unmarshal(data, &body) == nil {
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c.zooms[ev.ReqID] = body.Signals
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}
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case "triggerState":
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c.trigSt = append(c.trigSt, ev.State)
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}
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}
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}
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func (c *client) waitFor(d time.Duration, cond func() bool) bool {
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end := time.Now().Add(d)
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if end.After(c.deadline) {
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end = c.deadline
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}
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for time.Now().Before(end) {
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if cond() {
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return true
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}
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c.pump()
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}
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return false
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}
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func fatal(format string, a ...interface{}) {
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fmt.Printf("FATAL "+format+"\n", a...)
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os.Exit(1)
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}
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// merged returns time-sorted, de-duplicated samples per "src:sig" key.
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func (c *client) merged() map[string]points {
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tmp := map[string]points{}
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for _, f := range c.pushes {
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for k, p := range f.signals {
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full := f.sourceID + ":" + k
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cur := tmp[full]
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cur.T = append(cur.T, p.T...)
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cur.V = append(cur.V, p.V...)
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tmp[full] = cur
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}
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}
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out := map[string]points{}
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for k, p := range tmp {
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idx := make([]int, len(p.T))
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for i := range idx {
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idx[i] = i
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}
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sort.Slice(idx, func(a, b int) bool { return p.T[idx[a]] < p.T[idx[b]] })
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var op points
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last := math.NaN()
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for _, i := range idx {
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if !math.IsNaN(last) && p.T[i] == last {
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continue
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}
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op.T = append(op.T, p.T[i])
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op.V = append(op.V, p.V[i])
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last = p.T[i]
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}
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out[k] = op
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}
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return out
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}
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// ── received_<id>.bin writer ─────────────────────────────────────────────────
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func writeReceived(path string, m map[string]points) error {
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keys := make([]string, 0, len(m))
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for k := range m {
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keys = append(keys, k)
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}
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sort.Strings(keys)
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f, err := os.Create(path)
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if err != nil {
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return err
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}
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defer f.Close()
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var buf []byte
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put32 := func(v uint32) { var t [4]byte; binary.LittleEndian.PutUint32(t[:], v); buf = append(buf, t[:]...) }
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put16 := func(v uint16) { var t [2]byte; binary.LittleEndian.PutUint16(t[:], v); buf = append(buf, t[:]...) }
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putf := func(v float64) { var t [8]byte; binary.LittleEndian.PutUint64(t[:], math.Float64bits(v)); buf = append(buf, t[:]...) }
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buf = append(buf, []byte("RCV1")...)
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put32(uint32(len(keys)))
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for _, k := range keys {
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put16(uint16(len(k)))
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buf = append(buf, []byte(k)...)
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p := m[k]
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put32(uint32(len(p.T)))
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for _, t := range p.T {
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putf(t)
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}
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for _, v := range p.V {
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putf(v)
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}
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}
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_, err = f.Write(buf)
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return err
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}
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// ── checks structures ────────────────────────────────────────────────────────
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type zoomCheck struct {
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Range [2]float64 `json:"range"`
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N int `json:"n"`
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Returned int `json:"returned"`
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InRange bool `json:"inrange"`
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Key string `json:"key"`
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}
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type windowCheck struct {
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WindowSec float64 `json:"windowSec"`
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Span float64 `json:"span"`
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Returned int `json:"returned"`
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OK bool `json:"ok"`
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Key string `json:"key"`
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}
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type trigCheck struct {
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Edge string `json:"edge"`
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Mode string `json:"mode"`
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Fired bool `json:"fired"`
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TrigTime float64 `json:"trigTime"`
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PreSec float64 `json:"preSec"`
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PostSec float64 `json:"postSec"`
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CapturePts int `json:"capturePts"`
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EdgeOK bool `json:"edgeOk"`
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WindowOK bool `json:"windowOk"`
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Rearmed bool `json:"rearmed"`
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Key string `json:"key"`
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}
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type liveCheck struct {
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OK bool `json:"ok"`
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Frames int `json:"frames"`
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Signals int `json:"signals"`
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Monotonic bool `json:"monotonic"`
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WallClock bool `json:"wallclock"`
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DurationS float64 `json:"duration"`
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}
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type checksOut struct {
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Scenario string `json:"scenario"`
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Live liveCheck `json:"live"`
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Zoom []zoomCheck `json:"zoom"`
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Window windowCheck `json:"window"`
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Trigger []trigCheck `json:"trigger"`
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}
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func has(set, name string) bool {
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for _, s := range strings.Split(set, ",") {
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if strings.TrimSpace(s) == name {
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return true
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}
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}
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return false
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}
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func main() {
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flag.Parse()
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if *scenario == "" {
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fatal("missing -scenario")
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}
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if err := os.MkdirAll(*outDir, 0o755); err != nil {
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fatal("mkdir %s: %v", *outDir, err)
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}
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url := "ws://" + *hubFlag + "/ws"
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log.Printf("connecting to %s (scenario %s)", url, *scenario)
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ws, _, err := websocket.DefaultDialer.Dial(url, nil)
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if err != nil {
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fatal("dial %s: %v", url, err)
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}
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defer ws.Close()
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c := &client{
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ws: ws, deadline: time.Now().Add(*timeout),
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configs: map[string][]signalInfo{},
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zooms: map[uint32]map[string]points{},
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}
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out := checksOut{Scenario: *scenario}
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// 1. sources connected
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c.send(map[string]interface{}{"type": "getSources"})
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if !c.waitFor(20*time.Second, func() bool {
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for _, s := range c.sources {
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if s.State == "connected" {
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return true
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}
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}
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return false
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}) {
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fatal("no connected source within timeout")
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}
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for _, s := range c.sources {
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c.send(map[string]interface{}{"type": "getConfig", "sourceId": s.ID})
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}
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c.waitFor(5*time.Second, func() bool {
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for _, s := range c.sources {
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if s.State == "connected" && len(c.configs[s.ID]) == 0 {
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return false
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}
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}
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return true
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})
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// 2. live recording
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recEnd := time.Now().Add(time.Duration(*durSec * float64(time.Second)))
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for time.Now().Before(recEnd) {
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c.pump()
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}
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m := c.merged()
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recvPath := filepath.Join(*outDir, "received_"+*scenario+".bin")
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if err := writeReceived(recvPath, m); err != nil {
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fatal("write received: %v", err)
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}
|
||||
now := float64(time.Now().UnixNano()) / 1e9
|
||||
mono, wall := true, true
|
||||
for _, p := range m {
|
||||
for i, t := range p.T {
|
||||
if math.Abs(t-now) > 60.0 {
|
||||
wall = false
|
||||
}
|
||||
if i > 0 && t < p.T[i-1]-1e-9 {
|
||||
mono = false
|
||||
}
|
||||
}
|
||||
}
|
||||
out.Live = liveCheck{
|
||||
OK: len(c.pushes) >= 5 && len(m) > 0 && mono && wall,
|
||||
Frames: len(c.pushes), Signals: len(m), Monotonic: mono,
|
||||
WallClock: wall, DurationS: *durSec,
|
||||
}
|
||||
log.Printf("live: %d frames, %d signals, mono=%v wall=%v", len(c.pushes), len(m), mono, wall)
|
||||
|
||||
// busiest signal for zoom/window
|
||||
var busy string
|
||||
bn := 0
|
||||
for k, p := range m {
|
||||
if len(p.T) > bn {
|
||||
bn, busy = len(p.T), k
|
||||
}
|
||||
}
|
||||
|
||||
// 3. zoom: narrow + wide
|
||||
if has(*checksCSV, "zoom") && busy != "" {
|
||||
ts := m[busy].T
|
||||
t1 := ts[len(ts)-1]
|
||||
t0full := ts[0]
|
||||
ranges := [][2]float64{{t1 - 0.05, t1}, {t0full, t1}} // narrow, wide
|
||||
for ri, rg := range ranges {
|
||||
reqID := uint32(1000 + ri)
|
||||
c.send(map[string]interface{}{
|
||||
"type": "zoom", "reqId": reqID, "t0": rg[0], "t1": rg[1],
|
||||
"n": 300, "signals": busy,
|
||||
})
|
||||
ok := c.waitFor(8*time.Second, func() bool { _, ok := c.zooms[reqID]; return ok })
|
||||
zc := zoomCheck{Range: rg, N: 300, Key: busy, InRange: true}
|
||||
if ok {
|
||||
pts := c.zooms[reqID][busy]
|
||||
zc.Returned = len(pts.T)
|
||||
for _, t := range pts.T {
|
||||
if t < rg[0]-1e-6 || t > rg[1]+1e-6 {
|
||||
zc.InRange = false
|
||||
}
|
||||
}
|
||||
} else {
|
||||
zc.InRange = false
|
||||
}
|
||||
out.Zoom = append(out.Zoom, zc)
|
||||
log.Printf("zoom [%.4f,%.4f] returned=%d inrange=%v", rg[0], rg[1], zc.Returned, zc.InRange)
|
||||
}
|
||||
}
|
||||
|
||||
// 4. window: zoom over [now-windowSec, now] and check span ≤ window
|
||||
if has(*checksCSV, "window") && busy != "" {
|
||||
ts := m[busy].T
|
||||
t1 := ts[len(ts)-1]
|
||||
const winSec = 1.0
|
||||
reqID := uint32(2000)
|
||||
c.send(map[string]interface{}{
|
||||
"type": "zoom", "reqId": reqID, "t0": t1 - winSec, "t1": t1,
|
||||
"n": 600, "signals": busy,
|
||||
})
|
||||
ok := c.waitFor(8*time.Second, func() bool { _, ok := c.zooms[reqID]; return ok })
|
||||
wc := windowCheck{WindowSec: winSec, Key: busy}
|
||||
if ok {
|
||||
pts := c.zooms[reqID][busy]
|
||||
wc.Returned = len(pts.T)
|
||||
if len(pts.T) >= 2 {
|
||||
wc.Span = pts.T[len(pts.T)-1] - pts.T[0]
|
||||
wc.OK = wc.Span <= winSec+1e-3
|
||||
}
|
||||
}
|
||||
out.Window = wc
|
||||
log.Printf("window %.2fs: span=%.4f returned=%d ok=%v", winSec, wc.Span, wc.Returned, wc.OK)
|
||||
}
|
||||
|
||||
// 5. trigger matrix
|
||||
if has(*checksCSV, "trigger") && *trigsig != "" {
|
||||
thr := *trigthr
|
||||
if math.IsNaN(thr) {
|
||||
if p, ok := m[*trigsig]; ok && len(p.V) > 0 {
|
||||
s := 0.0
|
||||
for _, v := range p.V {
|
||||
s += v
|
||||
}
|
||||
thr = s / float64(len(p.V))
|
||||
} else {
|
||||
thr = 0.0
|
||||
}
|
||||
}
|
||||
log.Printf("trigger signal %s threshold %.6g", *trigsig, thr)
|
||||
for _, edge := range []string{"rising", "falling", "both"} {
|
||||
for _, mode := range []string{"normal", "single"} {
|
||||
out.Trigger = append(out.Trigger, c.runTrigger(*trigsig, edge, mode, thr))
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// write checks json
|
||||
cj := filepath.Join(*outDir, "checks_"+*scenario+".json")
|
||||
b, _ := json.MarshalIndent(out, "", " ")
|
||||
if err := os.WriteFile(cj, b, 0o644); err != nil {
|
||||
fatal("write checks: %v", err)
|
||||
}
|
||||
fmt.Printf("OK chain-client %s: %s + %s\n", *scenario, filepath.Base(recvPath), filepath.Base(cj))
|
||||
}
|
||||
|
||||
// runTrigger configures one edge/mode trigger, arms it, and records the result.
|
||||
func (c *client) runTrigger(key, edge, mode string, thr float64) trigCheck {
|
||||
tc := trigCheck{Edge: edge, Mode: mode, Key: key}
|
||||
beforeCaps := len(c.captures)
|
||||
c.send(map[string]interface{}{
|
||||
"type": "setTrigger", "signal": key, "edge": edge,
|
||||
"threshold": thr, "windowSec": 0.1, "prePercent": 20.0, "mode": mode,
|
||||
})
|
||||
c.send(map[string]interface{}{"type": "arm"})
|
||||
fired := c.waitFor(8*time.Second, func() bool { return len(c.captures) > beforeCaps })
|
||||
tc.Fired = fired
|
||||
if !fired {
|
||||
c.send(map[string]interface{}{"type": "disarm"})
|
||||
return tc
|
||||
}
|
||||
cap0 := c.captures[len(c.captures)-1]
|
||||
tc.TrigTime, tc.PreSec, tc.PostSec = cap0.trigTime, cap0.preSec, cap0.postSec
|
||||
tc.WindowOK = math.Abs(cap0.preSec-0.02) < 1e-6 && math.Abs(cap0.postSec-0.08) < 1e-6
|
||||
if pts, ok := cap0.signals[key]; ok {
|
||||
tc.CapturePts = len(pts.T)
|
||||
tc.EdgeOK = edgeCrosses(pts, cap0.trigTime, edge, thr)
|
||||
}
|
||||
// re-arm behaviour
|
||||
if mode == "normal" {
|
||||
tc.Rearmed = c.waitFor(4*time.Second, func() bool { return len(c.captures) > beforeCaps+1 })
|
||||
} else { // single: must NOT fire again until rearm
|
||||
again := c.waitFor(1500*time.Millisecond, func() bool { return len(c.captures) > beforeCaps+1 })
|
||||
c.send(map[string]interface{}{"type": "rearm"})
|
||||
tc.Rearmed = !again && c.waitFor(4*time.Second, func() bool { return len(c.captures) > beforeCaps+1 })
|
||||
}
|
||||
c.send(map[string]interface{}{"type": "disarm"})
|
||||
log.Printf("trigger %s/%s fired=%v edgeOk=%v winOk=%v rearm=%v",
|
||||
edge, mode, tc.Fired, tc.EdgeOK, tc.WindowOK, tc.Rearmed)
|
||||
return tc
|
||||
}
|
||||
|
||||
// edgeCrosses verifies the captured waveform crosses thr in the edge direction
|
||||
// near trigTime.
|
||||
func edgeCrosses(p points, trigTime float64, edge string, thr float64) bool {
|
||||
// find the sample pair straddling trigTime
|
||||
for i := 1; i < len(p.T); i++ {
|
||||
if p.T[i-1] <= trigTime && p.T[i] >= trigTime {
|
||||
a, b := p.V[i-1], p.V[i]
|
||||
switch edge {
|
||||
case "rising":
|
||||
return a <= thr && b >= thr
|
||||
case "falling":
|
||||
return a >= thr && b <= thr
|
||||
case "both":
|
||||
return (a <= thr && b >= thr) || (a >= thr && b <= thr)
|
||||
}
|
||||
}
|
||||
}
|
||||
return false
|
||||
}
|
||||
Reference in New Issue
Block a user