{"commit":{"subject":"Add node bindings","shortRevision":"b3bccf2273","authorName":"Ben Alpert","authoredAt":"2015-09-19T10:59:54-07:00","revision":"b3bccf22735fc96ade8415b2be02b969779bc118","authorEmail":"balpert@fb.com"},"patch":"diff --git a\/scripts\/perf-counters\/README.md b\/scripts\/perf-counters\/README.md\nnew file mode 100644\nindex 0000000000..48fa7ec753\n--- \/dev\/null\n+++ b\/scripts\/perf-counters\/README.md\n@@ -0,0 +1,16 @@\n+# perf-counters\n+\n+Lightweight bindings to Linux perf event counters.\n+\n+```\n+$ node\n+> var PerfCounters = require('perf-counters');\n+> PerfCounters.init();\n+> var start = PerfCounters.getCounters(); console.log('test'); var end = PerfCounters.getCounters();\n+test\n+> start\n+{ instructions: 1382, loads: 421, stores: 309 }\n+> end\n+{ instructions: 647633, loads: 195771, stores: 133246 }\n+>\n+```\ndiff --git a\/scripts\/perf-counters\/binding.gyp b\/scripts\/perf-counters\/binding.gyp\nnew file mode 100644\nindex 0000000000..397d2c7f14\n--- \/dev\/null\n+++ b\/scripts\/perf-counters\/binding.gyp\n@@ -0,0 +1,15 @@\n+{\n+ \"targets\": [\n+ {\n+ \"target_name\": \"perfcounters\",\n+ \"sources\": [\n+ \"src\/hardware-counter.cpp\",\n+ \"src\/perf-counters.cpp\",\n+ \"src\/thread-local.cpp\",\n+ ],\n+ \"cflags\": [\n+ \"-Wno-sign-compare\",\n+ ],\n+ },\n+ ],\n+}\ndiff --git a\/scripts\/perf-counters\/index.js b\/scripts\/perf-counters\/index.js\nnew file mode 100644\nindex 0000000000..5329a141d5\n--- \/dev\/null\n+++ b\/scripts\/perf-counters\/index.js\n@@ -0,0 +1,3 @@\n+'use strict';\n+\n+module.exports = require('bindings')('perfcounters');\ndiff --git a\/scripts\/perf-counters\/package.json b\/scripts\/perf-counters\/package.json\nnew file mode 100644\nindex 0000000000..4c362cea36\n--- \/dev\/null\n+++ b\/scripts\/perf-counters\/package.json\n@@ -0,0 +1,10 @@\n+{\n+ \"name\": \"perf-counters\",\n+ \"version\": \"0.1.2\",\n+ \"description\": \"Lightweight bindings to Linux perf event counters.\",\n+ \"main\": \"index.js\",\n+ \"license\": \"BSD-3-Clause\",\n+ \"dependencies\": {\n+ \"bindings\": \"^1.2.1\"\n+ }\n+}\ndiff --git a\/scripts\/perf-counters\/src\/perf-counters.cpp b\/scripts\/perf-counters\/src\/perf-counters.cpp\nnew file mode 100644\nindex 0000000000..3be6d0ece3\n--- \/dev\/null\n+++ b\/scripts\/perf-counters\/src\/perf-counters.cpp\n@@ -0,0 +1,55 @@\n+\/**\n+ * Copyright 2013-2015, Facebook, Inc.\n+ * All rights reserved.\n+ *\n+ * This source code is licensed under the BSD-style license found in the\n+ * LICENSE file in the root directory of this source tree. An additional grant\n+ * of patent rights can be found in the PATENTS file in the same directory.\n+ *\/\n+\n+#include \n+\n+#include \"hardware-counter.h\"\n+\n+namespace PerfCounters {\n+\n+using HPHP::HardwareCounter;\n+\n+void Init(const v8::FunctionCallbackInfo& args) {\n+ \/\/ TODO: Allow customizing recorded events\n+ bool enable = true;\n+ std::string events = \"\";\n+ bool recordSubprocesses = false;\n+ HardwareCounter::Init(enable, events, recordSubprocesses);\n+ HardwareCounter::s_counter.getCheck();\n+}\n+\n+void GetCounters(const v8::FunctionCallbackInfo& args) {\n+ v8::Isolate* isolate = args.GetIsolate();\n+ v8::Local obj = v8::Object::New(isolate);\n+ std::pair> pair(isolate, obj);\n+\n+ HardwareCounter::GetPerfEvents(\n+ [](const std::string& key, int64_t value, void* data) {\n+ std::pair>& pair =\n+ *reinterpret_cast>*>(data);\n+ v8::Isolate* isolate = pair.first;\n+ v8::Local obj = pair.second;\n+ obj->Set(\n+ v8::String::NewFromUtf8(isolate, key.c_str()),\n+ v8::Number::New(isolate, value)\n+ );\n+ },\n+ &pair);\n+\n+ args.GetReturnValue().Set(obj);\n+}\n+\n+void InitModule(v8::Local exports) {\n+ NODE_SET_METHOD(exports, \"init\", Init);\n+ NODE_SET_METHOD(exports, \"getCounters\", GetCounters);\n+}\n+\n+NODE_MODULE(perfcounters, InitModule)\n+\n+}\n","body":"","parents":["e922f869e6221dd05e8bf8d5a81680a68cfb669d"],"files":[{"status":"A","path":"scripts\/perf-counters\/README.md"},{"status":"A","path":"scripts\/perf-counters\/binding.gyp"},{"status":"A","path":"scripts\/perf-counters\/index.js"},{"status":"A","path":"scripts\/perf-counters\/package.json"},{"status":"A","path":"scripts\/perf-counters\/src\/perf-counters.cpp"}]}

dillon1000/react

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