зеркало из https://github.com/mozilla/pluotsorbet.git
188 строки
6.0 KiB
JavaScript
188 строки
6.0 KiB
JavaScript
/* -*- Mode: Java; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/* vim: set shiftwidth=4 tabstop=4 autoindent cindent expandtab: */
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'use strict';
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var Instrument = {
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enter: {},
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exit: {},
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profiling: false,
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profile: null,
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asyncProfile: null,
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enabled: "instrument" in urlParams && !/no|0/.test(urlParams.instrument),
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callEnterHooks: function(methodInfo, caller, callee) {
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if (this.enabled) {
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var key = methodInfo.implKey;
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if (Instrument.enter[key]) {
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Instrument.enter[key](caller, callee);
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}
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}
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if (this.profiling) {
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var now = performance.now();
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if (caller.profileData && caller.profileData.then) {
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caller.profileData.cost += now - caller.profileData.then;
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caller.profileData.then = null;
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}
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callee.profileData = {
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cost: 0,
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then: now,
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};
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}
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},
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callExitHooks: function(methodInfo, caller, callee) {
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var key = methodInfo.implKey;
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if (this.profiling) {
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var now = performance.now();
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if (callee.profileData) {
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if (callee.profileData.then) {
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callee.profileData.cost += now - callee.profileData.then;
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callee.profileData.then = null;
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}
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var methodProfileData = this.profile[key] || (this.profile[key] = { count: 0, cost: 0 });
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methodProfileData.count++;
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methodProfileData.cost += callee.profileData.cost;
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}
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if (caller.profileData) {
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caller.profileData.then = now;
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}
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}
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if (this.enabled) {
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if (Instrument.exit[key]) {
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Instrument.exit[key](caller, callee);
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}
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}
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},
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callPauseHooks: function(frame) {
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if (this.profiling && frame.profileData && frame.profileData.then) {
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frame.profileData.cost += performance.now() - frame.profileData.then;
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frame.profileData.then = null;
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}
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},
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callResumeHooks: function(frame) {
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if (this.profiling && frame.profileData) {
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frame.profileData.then = performance.now();
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}
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},
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enterAsyncNative: function(key, promise) {
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var profileData = this.asyncProfile[key] || (this.asyncProfile[key] = { count: 0, cost: 0 });
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promise.startTime = performance.now();
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},
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exitAsyncNative: function(key, promise) {
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var profileData = this.asyncProfile[key];
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if (!profileData || !promise.startTime) {
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// Ignore native without profile data, which can happen when you start
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// profiling while the native is pending.
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return;
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}
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profileData.count++;
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profileData.cost += performance.now() - promise.startTime;
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},
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startProfile: function() {
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this.profile = {};
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this.asyncProfile = {};
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this.profiling = true;
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},
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printProfile: function(aProfile, aProfileName) {
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var methods = [];
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for (var key in aProfile) {
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methods.push({
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key: key,
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count: aProfile[key].count,
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cost: aProfile[key].cost,
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});
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}
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methods.sort(function(a, b) { return b.cost - a.cost });
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console.log(aProfileName + ":");
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methods.forEach(function(method) {
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console.log(Math.round(method.cost) + "ms " + method.count + " " + method.key);
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});
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},
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stopProfile: function() {
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this.printProfile(this.profile, "Profile");
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this.printProfile(this.asyncProfile, "Async natives profile");
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this.profiling = false;
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},
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measure: function(alternateImpl, ctx, methodInfo) {
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var key = methodInfo.implKey;
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if (this.profiling) {
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var then = performance.now();
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alternateImpl.call(null, ctx, ctx.current().stack, methodInfo.isStatic);
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var methodProfileData = this.profile[key] || (this.profile[key] = { count: 0, cost: 0 });
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methodProfileData.count++;
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methodProfileData.cost += performance.now() - then;
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} else {
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alternateImpl.call(null, ctx, ctx.current().stack, methodInfo.isStatic);
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}
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},
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};
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Instrument.enter["com/sun/midp/ssl/SSLStreamConnection.<init>.(Ljava/lang/String;ILjava/io/InputStream;Ljava/io/OutputStream;Lcom/sun/midp/pki/CertStore;)V"] = function(caller, callee) {
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var _this = caller.stack.read(6), port = caller.stack.read(4), host = util.fromJavaString(caller.stack.read(5));
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_this.logBuffer = "SSLStreamConnection to " + host + ":" + port + ":\n";
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};
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Instrument.enter["com/sun/midp/ssl/Out.write.(I)V"] = function(caller, callee) {
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var _this = caller.stack.read(3);
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var connection = _this.klass.classInfo.getField("I.ssc.Lcom/sun/midp/ssl/SSLStreamConnection;").get(_this);
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connection.logBuffer += String.fromCharCode(callee.stack.read(1));
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};
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Instrument.enter["com/sun/midp/ssl/Out.write.([BII)V"] = function(caller, callee) {
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var len = caller.stack.read(1), off = caller.stack.read(2), b = caller.stack.read(3), _this = caller.stack.read(4);
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var connection = _this.klass.classInfo.getField("I.ssc.Lcom/sun/midp/ssl/SSLStreamConnection;").get(_this);
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var range = b.subarray(off, off + len);
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for (var i = 0; i < range.length; i++) {
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connection.logBuffer += String.fromCharCode(range[i] & 0xff);
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}
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};
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Instrument.exit["com/sun/midp/ssl/In.read.()I"] = function(caller, callee) {
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// We can't use caller.stack.read() here, because the length of the caller's
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// stack differs depending on whether or not In.read threw an exception.
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var _this = caller.stack[2];
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var connection = _this.klass.classInfo.getField("I.ssc.Lcom/sun/midp/ssl/SSLStreamConnection;").get(_this);
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connection.logBuffer += String.fromCharCode(callee.stack.read(1));
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};
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Instrument.exit["com/sun/midp/ssl/In.read.([BII)I"] = function(caller, callee) {
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var len = caller.stack.read(4), off = caller.stack.read(5), b = caller.stack.read(6), _this = caller.stack.read(7);
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var connection = _this.klass.classInfo.getField("I.ssc.Lcom/sun/midp/ssl/SSLStreamConnection;").get(_this);
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var range = b.subarray(off, off + len);
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for (var i = 0; i < range.length; i++) {
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connection.logBuffer += String.fromCharCode(range[i] & 0xff);
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}
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};
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Instrument.enter["com/sun/midp/ssl/SSLStreamConnection.close.()V"] = function(caller, callee) {
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var _this = caller.stack.read(1);
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if ("logBuffer" in _this) {
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console.log(_this.logBuffer);
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delete _this.logBuffer;
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}
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};
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