From 4d7c5357a2c3c44acbc68f875fd3777b333f009a Mon Sep 17 00:00:00 2001 From: Zack Scholl Date: Mon, 11 Nov 2019 10:30:41 -0800 Subject: [PATCH] add main go --- src/webrtc/wasm/index.html | 16 ++ src/webrtc/wasm/main.go | 169 +++++++++++ src/webrtc/wasm/wasm_exec.js | 533 +++++++++++++++++++++++++++++++++++ src/webrtc/webrtc.go | 17 +- 4 files changed, 730 insertions(+), 5 deletions(-) create mode 100644 src/webrtc/wasm/index.html create mode 100644 src/webrtc/wasm/main.go create mode 100644 src/webrtc/wasm/wasm_exec.js diff --git a/src/webrtc/wasm/index.html b/src/webrtc/wasm/index.html new file mode 100644 index 0000000..c077c9a --- /dev/null +++ b/src/webrtc/wasm/index.html @@ -0,0 +1,16 @@ + + + + + + + + + + + \ No newline at end of file diff --git a/src/webrtc/wasm/main.go b/src/webrtc/wasm/main.go new file mode 100644 index 0000000..54c38bc --- /dev/null +++ b/src/webrtc/wasm/main.go @@ -0,0 +1,169 @@ +package main + +import ( + "crypto/md5" + "crypto/rand" + "encoding/base64" + "encoding/json" + "fmt" + "strings" + "time" + + "github.com/pion/webrtc/v2" + log "github.com/schollz/logger" +) + +const ( + bufferedAmountLowThreshold uint64 = 512 * 1024 // 512 KB + maxBufferedAmount uint64 = 1024 * 1024 // 1 MB + maxPacketSize uint64 = 65535 +) + +func setRemoteDescription(pc *webrtc.PeerConnection, sdp []byte) (err error) { + log.Debug("unmarshaling remote description") + var desc webrtc.SessionDescription + err = json.Unmarshal(sdp, &desc) + if err != nil { + log.Error(err) + return + } + log.Debug("apply the desc as the remote description") + err = pc.SetRemoteDescription(desc) + if err != nil { + log.Error(err) + } + return +} + +func createOfferer() (pc *webrtc.PeerConnection, err error) { + // Prepare the configuration + config := webrtc.Configuration{ + ICEServers: []webrtc.ICEServer{{URLs: []string{"stun:stun.l.google.com:19302"}}}, + } + + // Create a new PeerConnection + pc, err = webrtc.NewPeerConnection(config) + if err != nil { + log.Error(err) + return + } + + ordered := false + maxRetransmits := uint16(0) + options := &webrtc.DataChannelInit{ + Ordered: &ordered, + MaxRetransmits: &maxRetransmits, + } + + sendMoreCh := make(chan struct{}) + + // Create a datachannel with label 'data' + dc, err := pc.CreateDataChannel("data", options) + if err != nil { + log.Error(err) + return + } + + // Register channel opening handling + sendData := func(buf []byte) error { + fmt.Printf("sent message: %x\n", md5.Sum(buf)) + err := dc.Send(buf) + if err != nil { + return err + } + if dc.BufferedAmount()+uint64(len(buf)) > maxBufferedAmount { + // wait until the bufferedAmount becomes lower than the threshold + <-sendMoreCh + } + return nil + } + + dc.OnOpen(func() { + fmt.Println(time.Now()) + log.Debugf("OnOpen: %s-%d. Start sending a series of 1024-byte packets as fast as it can\n", dc.Label(), dc.ID()) + its := 0 + for { + buf := make([]byte, maxPacketSize) + rand.Read(buf) + its++ + if its == 30000000000 { + buf = []byte{1, 2, 3} + } + err2 := sendData(buf) + if err2 != nil { + return + } + time.Sleep(1 * time.Second) + if its == 3000000000 { + break + } + } + }) + + // Set bufferedAmountLowThreshold so that we can get notified when + // we can send more + dc.SetBufferedAmountLowThreshold(bufferedAmountLowThreshold) + + // This callback is made when the current bufferedAmount becomes lower than the threadshold + dc.OnBufferedAmountLow(func() { + sendMoreCh <- struct{}{} + }) + + // Register the OnMessage to handle incoming messages + dc.OnMessage(func(dcMsg webrtc.DataChannelMessage) { + fmt.Printf("got message: %x\n", md5.Sum(dcMsg.Data)) + }) + + return pc, nil +} + +//func main(this js.Value, inputs []js.Value) interface{} { +func main() { + log.SetLevel("debug") + log.Debugf("running with input") + + log.Debug("creating offer") + answerPC, err := createOfferer() + if err != nil { + log.Error(err) + } + + offerstring := ` 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 + +` + + log.Debug("decoding") + b, err := base64.StdEncoding.DecodeString(strings.TrimSpace(offerstring)) + if err != nil { + log.Error(err) + } + + log.Debugf("setting remote description: %s", b) + err = setRemoteDescription(answerPC, b) + if err != nil { + log.Error(err) + } + + log.Debug("creating answer") + answer, err := answerPC.CreateAnswer(nil) + if err != nil { + log.Error(err) + } + + log.Debug("setting local description") + err = answerPC.SetLocalDescription(answer) + if err != nil { + log.Error(err) + } + + log.Debug("marshaling answer") + desc2, err := json.Marshal(answer) + if err != nil { + log.Error(err) + } + + fmt.Println(string(desc2)) + + select {} +} diff --git a/src/webrtc/wasm/wasm_exec.js b/src/webrtc/wasm/wasm_exec.js new file mode 100644 index 0000000..a54bb9a --- /dev/null +++ b/src/webrtc/wasm/wasm_exec.js @@ -0,0 +1,533 @@ +// Copyright 2018 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +(() => { + // Map multiple JavaScript environments to a single common API, + // preferring web standards over Node.js API. + // + // Environments considered: + // - Browsers + // - Node.js + // - Electron + // - Parcel + + if (typeof global !== "undefined") { + // global already exists + } else if (typeof window !== "undefined") { + window.global = window; + } else if (typeof self !== "undefined") { + self.global = self; + } else { + throw new Error("cannot export Go (neither global, window nor self is defined)"); + } + + if (!global.require && typeof require !== "undefined") { + global.require = require; + } + + if (!global.fs && global.require) { + global.fs = require("fs"); + } + + if (!global.fs) { + let outputBuf = ""; + global.fs = { + constants: { O_WRONLY: -1, O_RDWR: -1, O_CREAT: -1, O_TRUNC: -1, O_APPEND: -1, O_EXCL: -1 }, // unused + writeSync(fd, buf) { + outputBuf += decoder.decode(buf); + const nl = outputBuf.lastIndexOf("\n"); + if (nl != -1) { + console.log(outputBuf.substr(0, nl)); + outputBuf = outputBuf.substr(nl + 1); + } + return buf.length; + }, + write(fd, buf, offset, length, position, callback) { + if (offset !== 0 || length !== buf.length || position !== null) { + throw new Error("not implemented"); + } + const n = this.writeSync(fd, buf); + callback(null, n); + }, + open(path, flags, mode, callback) { + const err = new Error("not implemented"); + err.code = "ENOSYS"; + callback(err); + }, + read(fd, buffer, offset, length, position, callback) { + const err = new Error("not implemented"); + err.code = "ENOSYS"; + callback(err); + }, + fsync(fd, callback) { + callback(null); + }, + }; + } + + if (!global.crypto) { + const nodeCrypto = require("crypto"); + global.crypto = { + getRandomValues(b) { + nodeCrypto.randomFillSync(b); + }, + }; + } + + if (!global.performance) { + global.performance = { + now() { + const [sec, nsec] = process.hrtime(); + return sec * 1000 + nsec / 1000000; + }, + }; + } + + if (!global.TextEncoder) { + global.TextEncoder = require("util").TextEncoder; + } + + if (!global.TextDecoder) { + global.TextDecoder = require("util").TextDecoder; + } + + // End of polyfills for common API. + + const encoder = new TextEncoder("utf-8"); + const decoder = new TextDecoder("utf-8"); + + global.Go = class { + constructor() { + this.argv = ["js"]; + this.env = {}; + this.exit = (code) => { + if (code !== 0) { + console.warn("exit code:", code); + } + }; + this._exitPromise = new Promise((resolve) => { + this._resolveExitPromise = resolve; + }); + this._pendingEvent = null; + this._scheduledTimeouts = new Map(); + this._nextCallbackTimeoutID = 1; + + const mem = () => { + // The buffer may change when requesting more memory. + return new DataView(this._inst.exports.mem.buffer); + } + + const setInt64 = (addr, v) => { + mem().setUint32(addr + 0, v, true); + mem().setUint32(addr + 4, Math.floor(v / 4294967296), true); + } + + const getInt64 = (addr) => { + const low = mem().getUint32(addr + 0, true); + const high = mem().getInt32(addr + 4, true); + return low + high * 4294967296; + } + + const loadValue = (addr) => { + const f = mem().getFloat64(addr, true); + if (f === 0) { + return undefined; + } + if (!isNaN(f)) { + return f; + } + + const id = mem().getUint32(addr, true); + return this._values[id]; + } + + const storeValue = (addr, v) => { + const nanHead = 0x7FF80000; + + if (typeof v === "number") { + if (isNaN(v)) { + mem().setUint32(addr + 4, nanHead, true); + mem().setUint32(addr, 0, true); + return; + } + if (v === 0) { + mem().setUint32(addr + 4, nanHead, true); + mem().setUint32(addr, 1, true); + return; + } + mem().setFloat64(addr, v, true); + return; + } + + switch (v) { + case undefined: + mem().setFloat64(addr, 0, true); + return; + case null: + mem().setUint32(addr + 4, nanHead, true); + mem().setUint32(addr, 2, true); + return; + case true: + mem().setUint32(addr + 4, nanHead, true); + mem().setUint32(addr, 3, true); + return; + case false: + mem().setUint32(addr + 4, nanHead, true); + mem().setUint32(addr, 4, true); + return; + } + + let ref = this._refs.get(v); + if (ref === undefined) { + ref = this._values.length; + this._values.push(v); + this._refs.set(v, ref); + } + let typeFlag = 0; + switch (typeof v) { + case "string": + typeFlag = 1; + break; + case "symbol": + typeFlag = 2; + break; + case "function": + typeFlag = 3; + break; + } + mem().setUint32(addr + 4, nanHead | typeFlag, true); + mem().setUint32(addr, ref, true); + } + + const loadSlice = (addr) => { + const array = getInt64(addr + 0); + const len = getInt64(addr + 8); + return new Uint8Array(this._inst.exports.mem.buffer, array, len); + } + + const loadSliceOfValues = (addr) => { + const array = getInt64(addr + 0); + const len = getInt64(addr + 8); + const a = new Array(len); + for (let i = 0; i < len; i++) { + a[i] = loadValue(array + i * 8); + } + return a; + } + + const loadString = (addr) => { + const saddr = getInt64(addr + 0); + const len = getInt64(addr + 8); + return decoder.decode(new DataView(this._inst.exports.mem.buffer, saddr, len)); + } + + const timeOrigin = Date.now() - performance.now(); + this.importObject = { + go: { + // Go's SP does not change as long as no Go code is running. Some operations (e.g. calls, getters and setters) + // may synchronously trigger a Go event handler. This makes Go code get executed in the middle of the imported + // function. A goroutine can switch to a new stack if the current stack is too small (see morestack function). + // This changes the SP, thus we have to update the SP used by the imported function. + + // func wasmExit(code int32) + "runtime.wasmExit": (sp) => { + const code = mem().getInt32(sp + 8, true); + this.exited = true; + delete this._inst; + delete this._values; + delete this._refs; + this.exit(code); + }, + + // func wasmWrite(fd uintptr, p unsafe.Pointer, n int32) + "runtime.wasmWrite": (sp) => { + const fd = getInt64(sp + 8); + const p = getInt64(sp + 16); + const n = mem().getInt32(sp + 24, true); + fs.writeSync(fd, new Uint8Array(this._inst.exports.mem.buffer, p, n)); + }, + + // func nanotime() int64 + "runtime.nanotime": (sp) => { + setInt64(sp + 8, (timeOrigin + performance.now()) * 1000000); + }, + + // func walltime() (sec int64, nsec int32) + "runtime.walltime": (sp) => { + const msec = (new Date).getTime(); + setInt64(sp + 8, msec / 1000); + mem().setInt32(sp + 16, (msec % 1000) * 1000000, true); + }, + + // func scheduleTimeoutEvent(delay int64) int32 + "runtime.scheduleTimeoutEvent": (sp) => { + const id = this._nextCallbackTimeoutID; + this._nextCallbackTimeoutID++; + this._scheduledTimeouts.set(id, setTimeout( + () => { + this._resume(); + while (this._scheduledTimeouts.has(id)) { + // for some reason Go failed to register the timeout event, log and try again + // (temporary workaround for https://github.com/golang/go/issues/28975) + console.warn("scheduleTimeoutEvent: missed timeout event"); + this._resume(); + } + }, + getInt64(sp + 8) + 1, // setTimeout has been seen to fire up to 1 millisecond early + )); + mem().setInt32(sp + 16, id, true); + }, + + // func clearTimeoutEvent(id int32) + "runtime.clearTimeoutEvent": (sp) => { + const id = mem().getInt32(sp + 8, true); + clearTimeout(this._scheduledTimeouts.get(id)); + this._scheduledTimeouts.delete(id); + }, + + // func getRandomData(r []byte) + "runtime.getRandomData": (sp) => { + crypto.getRandomValues(loadSlice(sp + 8)); + }, + + // func stringVal(value string) ref + "syscall/js.stringVal": (sp) => { + storeValue(sp + 24, loadString(sp + 8)); + }, + + // func valueGet(v ref, p string) ref + "syscall/js.valueGet": (sp) => { + const result = Reflect.get(loadValue(sp + 8), loadString(sp + 16)); + sp = this._inst.exports.getsp(); // see comment above + storeValue(sp + 32, result); + }, + + // func valueSet(v ref, p string, x ref) + "syscall/js.valueSet": (sp) => { + Reflect.set(loadValue(sp + 8), loadString(sp + 16), loadValue(sp + 32)); + }, + + // func valueIndex(v ref, i int) ref + "syscall/js.valueIndex": (sp) => { + storeValue(sp + 24, Reflect.get(loadValue(sp + 8), getInt64(sp + 16))); + }, + + // valueSetIndex(v ref, i int, x ref) + "syscall/js.valueSetIndex": (sp) => { + Reflect.set(loadValue(sp + 8), getInt64(sp + 16), loadValue(sp + 24)); + }, + + // func valueCall(v ref, m string, args []ref) (ref, bool) + "syscall/js.valueCall": (sp) => { + try { + const v = loadValue(sp + 8); + const m = Reflect.get(v, loadString(sp + 16)); + const args = loadSliceOfValues(sp + 32); + const result = Reflect.apply(m, v, args); + sp = this._inst.exports.getsp(); // see comment above + storeValue(sp + 56, result); + mem().setUint8(sp + 64, 1); + } catch (err) { + storeValue(sp + 56, err); + mem().setUint8(sp + 64, 0); + } + }, + + // func valueInvoke(v ref, args []ref) (ref, bool) + "syscall/js.valueInvoke": (sp) => { + try { + const v = loadValue(sp + 8); + const args = loadSliceOfValues(sp + 16); + const result = Reflect.apply(v, undefined, args); + sp = this._inst.exports.getsp(); // see comment above + storeValue(sp + 40, result); + mem().setUint8(sp + 48, 1); + } catch (err) { + storeValue(sp + 40, err); + mem().setUint8(sp + 48, 0); + } + }, + + // func valueNew(v ref, args []ref) (ref, bool) + "syscall/js.valueNew": (sp) => { + try { + const v = loadValue(sp + 8); + const args = loadSliceOfValues(sp + 16); + const result = Reflect.construct(v, args); + sp = this._inst.exports.getsp(); // see comment above + storeValue(sp + 40, result); + mem().setUint8(sp + 48, 1); + } catch (err) { + storeValue(sp + 40, err); + mem().setUint8(sp + 48, 0); + } + }, + + // func valueLength(v ref) int + "syscall/js.valueLength": (sp) => { + setInt64(sp + 16, parseInt(loadValue(sp + 8).length)); + }, + + // valuePrepareString(v ref) (ref, int) + "syscall/js.valuePrepareString": (sp) => { + const str = encoder.encode(String(loadValue(sp + 8))); + storeValue(sp + 16, str); + setInt64(sp + 24, str.length); + }, + + // valueLoadString(v ref, b []byte) + "syscall/js.valueLoadString": (sp) => { + const str = loadValue(sp + 8); + loadSlice(sp + 16).set(str); + }, + + // func valueInstanceOf(v ref, t ref) bool + "syscall/js.valueInstanceOf": (sp) => { + mem().setUint8(sp + 24, loadValue(sp + 8) instanceof loadValue(sp + 16)); + }, + + // func copyBytesToGo(dst []byte, src ref) (int, bool) + "syscall/js.copyBytesToGo": (sp) => { + const dst = loadSlice(sp + 8); + const src = loadValue(sp + 32); + if (!(src instanceof Uint8Array)) { + mem().setUint8(sp + 48, 0); + return; + } + const toCopy = src.subarray(0, dst.length); + dst.set(toCopy); + setInt64(sp + 40, toCopy.length); + mem().setUint8(sp + 48, 1); + }, + + // func copyBytesToJS(dst ref, src []byte) (int, bool) + "syscall/js.copyBytesToJS": (sp) => { + const dst = loadValue(sp + 8); + const src = loadSlice(sp + 16); + if (!(dst instanceof Uint8Array)) { + mem().setUint8(sp + 48, 0); + return; + } + const toCopy = src.subarray(0, dst.length); + dst.set(toCopy); + setInt64(sp + 40, toCopy.length); + mem().setUint8(sp + 48, 1); + }, + + "debug": (value) => { + console.log(value); + }, + } + }; + } + + async run(instance) { + this._inst = instance; + this._values = [ // TODO: garbage collection + NaN, + 0, + null, + true, + false, + global, + this, + ]; + this._refs = new Map(); + this.exited = false; + + const mem = new DataView(this._inst.exports.mem.buffer) + + // Pass command line arguments and environment variables to WebAssembly by writing them to the linear memory. + let offset = 4096; + + const strPtr = (str) => { + const ptr = offset; + const bytes = encoder.encode(str + "\0"); + new Uint8Array(mem.buffer, offset, bytes.length).set(bytes); + offset += bytes.length; + if (offset % 8 !== 0) { + offset += 8 - (offset % 8); + } + return ptr; + }; + + const argc = this.argv.length; + + const argvPtrs = []; + this.argv.forEach((arg) => { + argvPtrs.push(strPtr(arg)); + }); + + const keys = Object.keys(this.env).sort(); + argvPtrs.push(keys.length); + keys.forEach((key) => { + argvPtrs.push(strPtr(`${key}=${this.env[key]}`)); + }); + + const argv = offset; + argvPtrs.forEach((ptr) => { + mem.setUint32(offset, ptr, true); + mem.setUint32(offset + 4, 0, true); + offset += 8; + }); + + this._inst.exports.run(argc, argv); + if (this.exited) { + this._resolveExitPromise(); + } + await this._exitPromise; + } + + _resume() { + if (this.exited) { + throw new Error("Go program has already exited"); + } + this._inst.exports.resume(); + if (this.exited) { + this._resolveExitPromise(); + } + } + + _makeFuncWrapper(id) { + const go = this; + return function () { + const event = { id: id, this: this, args: arguments }; + go._pendingEvent = event; + go._resume(); + return event.result; + }; + } + } + + if ( + global.require && + global.require.main === module && + global.process && + global.process.versions && + !global.process.versions.electron + ) { + if (process.argv.length < 3) { + console.error("usage: go_js_wasm_exec [wasm binary] [arguments]"); + process.exit(1); + } + + const go = new Go(); + go.argv = process.argv.slice(2); + go.env = Object.assign({ TMPDIR: require("os").tmpdir() }, process.env); + go.exit = process.exit; + WebAssembly.instantiate(fs.readFileSync(process.argv[2]), go.importObject).then((result) => { + process.on("exit", (code) => { // Node.js exits if no event handler is pending + if (code === 0 && !go.exited) { + // deadlock, make Go print error and stack traces + go._pendingEvent = { id: 0 }; + go._resume(); + } + }); + return go.run(result.instance); + }).catch((err) => { + console.error(err); + process.exit(1); + }); + } +})(); diff --git a/src/webrtc/webrtc.go b/src/webrtc/webrtc.go index 21012cd..f944bee 100644 --- a/src/webrtc/webrtc.go +++ b/src/webrtc/webrtc.go @@ -1,8 +1,9 @@ -package webrtc +package main import ( "crypto/md5" "crypto/rand" + "encoding/base64" "encoding/json" "errors" "flag" @@ -22,12 +23,15 @@ const ( ) func setRemoteDescription(pc *webrtc.PeerConnection, sdp []byte) (err error) { + log.Debug("setting remote description") var desc webrtc.SessionDescription err = json.Unmarshal(sdp, &desc) if err != nil { log.Error(err) return } + + log.Debug("applying remote description") // Apply the desc as the remote description err = pc.SetRemoteDescription(desc) if err != nil { @@ -87,7 +91,7 @@ func createOfferer(finished chan<- error) (pc *webrtc.PeerConnection, err error) buf := make([]byte, maxPacketSize) rand.Read(buf) its++ - if its == 3 { + if its == 3000000000 { buf = []byte{1, 2, 3} finished <- errors.New("done") } @@ -97,7 +101,7 @@ func createOfferer(finished chan<- error) (pc *webrtc.PeerConnection, err error) return } time.Sleep(1 * time.Second) - if its == 3 { + if its == 30000000 { break } } @@ -120,7 +124,8 @@ func createOfferer(finished chan<- error) (pc *webrtc.PeerConnection, err error) return pc, nil } -func test1() { +func main() { + log.SetLevel("debug") finished := make(chan error, 1) var sender bool flag.BoolVar(&sender, "sender", false, "set as sender") @@ -149,7 +154,7 @@ func test1() { if err != nil { log.Error(err) } - fmt.Println(string(desc)) + fmt.Println(base64.StdEncoding.EncodeToString(desc)) err = ioutil.WriteFile("offer.json", desc, 0644) if err != nil { log.Error(err) @@ -170,6 +175,7 @@ func test1() { } break } + log.Debug("sender succeeded") } else { answerPC, err := createOfferer(finished) if err != nil { @@ -209,6 +215,7 @@ func test1() { } // Block forever + log.Debug("blocking forever") err := <-finished if err != nil { fmt.Println(err)