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| 1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #include "webkit/extensions/v8/heap_profiler_extension.h" | |
| 6 | |
| 7 #include "base/basictypes.h" | |
| 8 #include "v8/include/v8.h" | |
| 9 | |
| 10 #if defined(USE_TCMALLOC) && !defined(OS_WIN) | |
| 11 #include "third_party/tcmalloc/chromium/src/gperftools/heap-profiler.h" | |
| 12 #endif | |
| 13 | |
| 14 namespace extensions_v8 { | |
| 15 | |
| 16 namespace { | |
| 17 | |
| 18 const char kHeapProfilerExtensionName[] = "v8/HeapProfiler"; | |
| 19 | |
| 20 class HeapProfilerWrapper : public v8::Extension { | |
| 21 public: | |
| 22 HeapProfilerWrapper() | |
| 23 : v8::Extension(kHeapProfilerExtensionName, | |
| 24 "if (typeof(chromium) == 'undefined') {" | |
| 25 " chromium = {};" | |
| 26 "}" | |
| 27 "(function() {" | |
| 28 " native function HeapProfilerStart();" | |
| 29 " native function HeapProfilerStop();" | |
| 30 " native function HeapProfilerDump();" | |
| 31 " chromium.HeapProfiler = {};" | |
| 32 " chromium.HeapProfiler.start = function(opt_prefix) {" | |
| 33 " var prefix = opt_prefix;" | |
| 34 " if (!prefix) {" | |
| 35 " var d = new Date();" | |
| 36 " prefix = \"chromium-\" + " | |
| 37 " (1900 + d.getYear()) + " | |
| 38 " \"-\" + d.getMonth() + " | |
| 39 " \"-\" + d.getDay() + " | |
| 40 " \"-\" + d.getTime();" | |
| 41 " }" | |
| 42 " HeapProfilerStart(prefix);" | |
| 43 " };" | |
| 44 " chromium.HeapProfiler.stop = function() {" | |
| 45 " HeapProfilerStop();" | |
| 46 " };" | |
| 47 " chromium.HeapProfiler.dump = function(opt_reason) {" | |
| 48 " HeapProfilerDump(opt_reason || \"\");" | |
| 49 " };" | |
| 50 "})();") {} | |
| 51 | |
| 52 virtual v8::Handle<v8::FunctionTemplate> GetNativeFunction( | |
| 53 v8::Handle<v8::String> name) { | |
| 54 if (name->Equals(v8::String::New("HeapProfilerStart"))) { | |
| 55 return v8::FunctionTemplate::New(HeapProfilerStart); | |
| 56 } else if (name->Equals(v8::String::New("HeapProfilerStop"))) { | |
| 57 return v8::FunctionTemplate::New(HeapProfilerStop); | |
| 58 } else if (name->Equals(v8::String::New("HeapProfilerDump"))) { | |
| 59 return v8::FunctionTemplate::New(HeapProfilerDump); | |
| 60 } | |
| 61 return v8::Handle<v8::FunctionTemplate>(); | |
| 62 } | |
| 63 | |
| 64 #if defined(USE_TCMALLOC) && !defined(OS_WIN) | |
| 65 static v8::Handle<v8::Value> HeapProfilerStart(const v8::Arguments& args) { | |
| 66 if (args.Length() >= 1 && args[0]->IsString()) { | |
| 67 v8::Local<v8::String> js_prefix = args[0]->ToString(); | |
| 68 char prefix[256]; | |
| 69 js_prefix->WriteAscii(prefix, 0, arraysize(prefix) - 1); | |
| 70 ::HeapProfilerStart(prefix); | |
| 71 } | |
| 72 return v8::Undefined(); | |
| 73 } | |
| 74 | |
| 75 static v8::Handle<v8::Value> HeapProfilerStop(const v8::Arguments& args) { | |
| 76 ::HeapProfilerStop(); | |
| 77 return v8::Undefined(); | |
| 78 } | |
| 79 | |
| 80 static v8::Handle<v8::Value> HeapProfilerDump(const v8::Arguments& args) { | |
| 81 if (args.Length() >= 1 && args[0]->IsString()) { | |
| 82 v8::Local<v8::String> js_reason = args[0]->ToString(); | |
| 83 char reason[256]; | |
| 84 js_reason->WriteAscii(reason, 0, arraysize(reason) - 1); | |
| 85 ::HeapProfilerDump(reason); | |
| 86 } | |
| 87 return v8::Undefined(); | |
| 88 } | |
| 89 | |
| 90 #else | |
| 91 | |
| 92 static v8::Handle<v8::Value> HeapProfilerStart(const v8::Arguments& args) { | |
| 93 return v8::Undefined(); | |
| 94 } | |
| 95 | |
| 96 static v8::Handle<v8::Value> HeapProfilerStop(const v8::Arguments& args) { | |
| 97 return v8::Undefined(); | |
| 98 } | |
| 99 | |
| 100 static v8::Handle<v8::Value> HeapProfilerDump(const v8::Arguments& args) { | |
| 101 return v8::Undefined(); | |
| 102 } | |
| 103 #endif | |
| 104 }; | |
| 105 | |
| 106 } // namespace | |
| 107 | |
| 108 v8::Extension* HeapProfilerExtension::Get() { | |
| 109 return new HeapProfilerWrapper; | |
| 110 } | |
| 111 | |
| 112 } // namespace extensions_v8 | |
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Chromium Code Reviews
Issue 10117022:
Cleanup of v8 extension stuff. Playback extension is only used in chrome, so move it to chrome\rend… (Closed)
Base URL: svn://chrome-svn/chrome/trunk/src/