mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-10-30 13:45:27 +00:00
94 lines
2.7 KiB
C++
94 lines
2.7 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "SaveProfileTask.h"
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#include "GeckoProfiler.h"
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static bool
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WriteCallback(const jschar *buf, uint32_t len, void *data)
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{
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std::ofstream& stream = *static_cast<std::ofstream*>(data);
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nsAutoCString profile = NS_ConvertUTF16toUTF8(buf, len);
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stream << profile.Data();
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return true;
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}
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nsresult
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SaveProfileTask::Run() {
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// Get file path
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#if defined(SPS_PLAT_arm_android) && !defined(MOZ_WIDGET_GONK)
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nsCString tmpPath;
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tmpPath.AppendPrintf("/sdcard/profile_%i_%i.txt", XRE_GetProcessType(), getpid());
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#else
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nsCOMPtr<nsIFile> tmpFile;
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nsAutoCString tmpPath;
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if (NS_FAILED(NS_GetSpecialDirectory(NS_OS_TEMP_DIR, getter_AddRefs(tmpFile)))) {
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LOG("Failed to find temporary directory.");
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return NS_ERROR_FAILURE;
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}
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tmpPath.AppendPrintf("profile_%i_%i.txt", XRE_GetProcessType(), getpid());
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nsresult rv = tmpFile->AppendNative(tmpPath);
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if (NS_FAILED(rv))
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return rv;
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rv = tmpFile->GetNativePath(tmpPath);
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if (NS_FAILED(rv))
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return rv;
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#endif
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// Create a JSContext to run a JSObjectBuilder :(
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// Based on XPCShellEnvironment
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JSRuntime *rt;
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JSContext *cx;
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nsCOMPtr<nsIJSRuntimeService> rtsvc
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= do_GetService("@mozilla.org/js/xpc/RuntimeService;1");
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if (!rtsvc || NS_FAILED(rtsvc->GetRuntime(&rt)) || !rt) {
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LOG("failed to get RuntimeService");
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return NS_ERROR_FAILURE;;
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}
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cx = JS_NewContext(rt, 8192);
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if (!cx) {
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LOG("Failed to get context");
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return NS_ERROR_FAILURE;
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}
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{
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JSAutoRequest ar(cx);
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static const JSClass c = {
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"global", JSCLASS_GLOBAL_FLAGS,
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JS_PropertyStub, JS_DeletePropertyStub, JS_PropertyStub, JS_StrictPropertyStub,
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JS_EnumerateStub, JS_ResolveStub, JS_ConvertStub
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};
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JSObject *obj = JS_NewGlobalObject(cx, &c, NULL, JS::FireOnNewGlobalHook);
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std::ofstream stream;
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stream.open(tmpPath.get());
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if (stream.is_open()) {
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JSAutoCompartment autoComp(cx, obj);
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JSObject* profileObj = profiler_get_profile_jsobject(cx);
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JS::Rooted<JS::Value> val(cx, OBJECT_TO_JSVAL(profileObj));
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JS_Stringify(cx, &val, JS::NullPtr(), JS::NullHandleValue, WriteCallback, &stream);
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stream.close();
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LOGF("Saved to %s", tmpPath.get());
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} else {
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LOG("Fail to open profile log file.");
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}
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}
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JS_DestroyContext(cx);
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return NS_OK;
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}
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NS_IMPL_ISUPPORTS1(ProfileSaveEvent, nsIProfileSaveEvent)
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nsresult
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ProfileSaveEvent::AddSubProfile(const char* aProfile) {
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mFunc(aProfile, mClosure);
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return NS_OK;
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}
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