summaryrefslogtreecommitdiffstats
path: root/toolkit/components/perf/PerfMeasurement.cpp
diff options
context:
space:
mode:
authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
commit5f8de423f190bbb79a62f804151bc24824fa32d8 (patch)
tree10027f336435511475e392454359edea8e25895d /toolkit/components/perf/PerfMeasurement.cpp
parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
downloadUXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar
UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar.gz
UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar.lz
UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar.xz
UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.zip
Add m-esr52 at 52.6.0
Diffstat (limited to 'toolkit/components/perf/PerfMeasurement.cpp')
-rw-r--r--toolkit/components/perf/PerfMeasurement.cpp120
1 files changed, 120 insertions, 0 deletions
diff --git a/toolkit/components/perf/PerfMeasurement.cpp b/toolkit/components/perf/PerfMeasurement.cpp
new file mode 100644
index 000000000..1b211b79c
--- /dev/null
+++ b/toolkit/components/perf/PerfMeasurement.cpp
@@ -0,0 +1,120 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2; -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "PerfMeasurement.h"
+#include "jsperf.h"
+#include "mozilla/ModuleUtils.h"
+#include "nsMemory.h"
+#include "mozilla/Preferences.h"
+#include "mozJSComponentLoader.h"
+#include "nsZipArchive.h"
+#include "xpc_make_class.h"
+
+#define JSPERF_CONTRACTID \
+ "@mozilla.org/jsperf;1"
+
+#define JSPERF_CID \
+{ 0x421c38e6, 0xaee0, 0x4509, \
+ { 0xa0, 0x25, 0x13, 0x0f, 0x43, 0x78, 0x03, 0x5a } }
+
+namespace mozilla {
+namespace jsperf {
+
+NS_GENERIC_FACTORY_CONSTRUCTOR(Module)
+
+NS_IMPL_ISUPPORTS(Module, nsIXPCScriptable)
+
+Module::Module()
+{
+}
+
+Module::~Module()
+{
+}
+
+#define XPC_MAP_CLASSNAME Module
+#define XPC_MAP_QUOTED_CLASSNAME "Module"
+#define XPC_MAP_WANT_CALL
+#define XPC_MAP_FLAGS nsIXPCScriptable::WANT_CALL
+#include "xpc_map_end.h"
+
+static bool
+SealObjectAndPrototype(JSContext* cx, JS::Handle<JSObject *> parent, const char* name)
+{
+ JS::Rooted<JS::Value> prop(cx);
+ if (!JS_GetProperty(cx, parent, name, &prop))
+ return false;
+
+ if (prop.isUndefined()) {
+ // Pretend we sealed the object.
+ return true;
+ }
+
+ JS::Rooted<JSObject*> obj(cx, prop.toObjectOrNull());
+ if (!JS_GetProperty(cx, obj, "prototype", &prop))
+ return false;
+
+ JS::Rooted<JSObject*> prototype(cx, prop.toObjectOrNull());
+ return JS_FreezeObject(cx, obj) && JS_FreezeObject(cx, prototype);
+}
+
+static bool
+InitAndSealPerfMeasurementClass(JSContext* cx, JS::Handle<JSObject*> global)
+{
+ // Init the PerfMeasurement class
+ if (!JS::RegisterPerfMeasurement(cx, global))
+ return false;
+
+ // Seal up Object, Function, and Array and their prototypes. (This single
+ // object instance is shared amongst everyone who imports the jsperf module.)
+ if (!SealObjectAndPrototype(cx, global, "Object") ||
+ !SealObjectAndPrototype(cx, global, "Function") ||
+ !SealObjectAndPrototype(cx, global, "Array"))
+ return false;
+
+ // Finally, seal the global object, for good measure. (But not recursively;
+ // this breaks things.)
+ return JS_FreezeObject(cx, global);
+}
+
+NS_IMETHODIMP
+Module::Call(nsIXPConnectWrappedNative* wrapper,
+ JSContext* cx,
+ JSObject* obj,
+ const JS::CallArgs& args,
+ bool* _retval)
+{
+
+ mozJSComponentLoader* loader = mozJSComponentLoader::Get();
+ JS::Rooted<JSObject*> targetObj(cx);
+ nsresult rv = loader->FindTargetObject(cx, &targetObj);
+ NS_ENSURE_SUCCESS(rv, rv);
+
+ *_retval = InitAndSealPerfMeasurementClass(cx, targetObj);
+ return NS_OK;
+}
+
+} // namespace jsperf
+} // namespace mozilla
+
+NS_DEFINE_NAMED_CID(JSPERF_CID);
+
+static const mozilla::Module::CIDEntry kPerfCIDs[] = {
+ { &kJSPERF_CID, false, nullptr, mozilla::jsperf::ModuleConstructor },
+ { nullptr }
+};
+
+static const mozilla::Module::ContractIDEntry kPerfContracts[] = {
+ { JSPERF_CONTRACTID, &kJSPERF_CID },
+ { nullptr }
+};
+
+static const mozilla::Module kPerfModule = {
+ mozilla::Module::kVersion,
+ kPerfCIDs,
+ kPerfContracts
+};
+
+NSMODULE_DEFN(jsperf) = &kPerfModule;