Add m-esr52 at 52.6.0

1 files changed, 308 insertions, 0 deletions

diff --git a/tools/profiler/gecko/nsProfiler.cpp b/tools/profiler/gecko/nsProfiler.cpp
new file mode 100644
index 000000000..c38447381
--- /dev/null
+++ b/tools/profiler/gecko/nsProfiler.cpp
@@ -0,0 +1,308 @@
+/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/* 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 <string>
+#include <sstream>
+#include "GeckoProfiler.h"
+#include "nsProfiler.h"
+#include "nsProfilerStartParams.h"
+#include "nsMemory.h"
+#include "nsString.h"
+#include "mozilla/Services.h"
+#include "nsIObserverService.h"
+#include "nsIInterfaceRequestor.h"
+#include "nsILoadContext.h"
+#include "nsIWebNavigation.h"
+#include "nsIInterfaceRequestorUtils.h"
+#include "shared-libraries.h"
+#include "js/Value.h"
+#include "mozilla/ErrorResult.h"
+#include "mozilla/dom/Promise.h"
+
+using mozilla::ErrorResult;
+using mozilla::dom::Promise;
+using std::string;
+
+NS_IMPL_ISUPPORTS(nsProfiler, nsIProfiler)
+
+nsProfiler::nsProfiler()
+  : mLockedForPrivateBrowsing(false)
+{
+}
+
+nsProfiler::~nsProfiler()
+{
+  nsCOMPtr<nsIObserverService> observerService = mozilla::services::GetObserverService();
+  if (observerService) {
+    observerService->RemoveObserver(this, "chrome-document-global-created");
+    observerService->RemoveObserver(this, "last-pb-context-exited");
+  }
+}
+
+nsresult
+nsProfiler::Init() {
+  nsCOMPtr<nsIObserverService> observerService = mozilla::services::GetObserverService();
+  if (observerService) {
+    observerService->AddObserver(this, "chrome-document-global-created", false);
+    observerService->AddObserver(this, "last-pb-context-exited", false);
+  }
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsProfiler::Observe(nsISupports *aSubject,
+                    const char *aTopic,
+                    const char16_t *aData)
+{
+  if (strcmp(aTopic, "chrome-document-global-created") == 0) {
+    nsCOMPtr<nsIInterfaceRequestor> requestor = do_QueryInterface(aSubject);
+    nsCOMPtr<nsIWebNavigation> parentWebNav = do_GetInterface(requestor);
+    nsCOMPtr<nsILoadContext> loadContext = do_QueryInterface(parentWebNav);
+    if (loadContext && loadContext->UsePrivateBrowsing() && !mLockedForPrivateBrowsing) {
+      mLockedForPrivateBrowsing = true;
+      profiler_lock();
+    }
+  } else if (strcmp(aTopic, "last-pb-context-exited") == 0) {
+    mLockedForPrivateBrowsing = false;
+    profiler_unlock();
+  }
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsProfiler::CanProfile(bool *aCanProfile)
+{
+  *aCanProfile = !mLockedForPrivateBrowsing;
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsProfiler::StartProfiler(uint32_t aEntries, double aInterval,
+                          const char** aFeatures, uint32_t aFeatureCount,
+                          const char** aThreadNameFilters, uint32_t aFilterCount)
+{
+  if (mLockedForPrivateBrowsing) {
+    return NS_ERROR_NOT_AVAILABLE;
+  }
+
+  profiler_start(aEntries, aInterval,
+                 aFeatures, aFeatureCount,
+                 aThreadNameFilters, aFilterCount);
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsProfiler::StopProfiler()
+{
+  profiler_stop();
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsProfiler::IsPaused(bool *aIsPaused)
+{
+  *aIsPaused = profiler_is_paused();
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsProfiler::PauseSampling()
+{
+  profiler_pause();
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsProfiler::ResumeSampling()
+{
+  profiler_resume();
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsProfiler::AddMarker(const char *aMarker)
+{
+  PROFILER_MARKER(aMarker);
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsProfiler::GetProfile(double aSinceTime, char** aProfile)
+{
+  mozilla::UniquePtr<char[]> profile = profiler_get_profile(aSinceTime);
+  if (profile) {
+    size_t len = strlen(profile.get());
+    char *profileStr = static_cast<char *>
+                         (nsMemory::Clone(profile.get(), (len + 1) * sizeof(char)));
+    profileStr[len] = '\0';
+    *aProfile = profileStr;
+  }
+  return NS_OK;
+}
+
+std::string GetSharedLibraryInfoStringInternal();
+
+std::string
+GetSharedLibraryInfoString()
+{
+  return GetSharedLibraryInfoStringInternal();
+}
+
+NS_IMETHODIMP
+nsProfiler::GetSharedLibraryInformation(nsAString& aOutString)
+{
+  aOutString.Assign(NS_ConvertUTF8toUTF16(GetSharedLibraryInfoString().c_str()));
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsProfiler::DumpProfileToFile(const char* aFilename)
+{
+  profiler_save_profile_to_file(aFilename);
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsProfiler::GetProfileData(double aSinceTime, JSContext* aCx,
+                           JS::MutableHandle<JS::Value> aResult)
+{
+  JS::RootedObject obj(aCx, profiler_get_profile_jsobject(aCx, aSinceTime));
+  if (!obj) {
+    return NS_ERROR_FAILURE;
+  }
+  aResult.setObject(*obj);
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsProfiler::GetProfileDataAsync(double aSinceTime, JSContext* aCx,
+                                nsISupports** aPromise)
+{
+  MOZ_ASSERT(NS_IsMainThread());
+
+  if (NS_WARN_IF(!aCx)) {
+    return NS_ERROR_FAILURE;
+  }
+
+  nsIGlobalObject* go = xpc::NativeGlobal(JS::CurrentGlobalOrNull(aCx));
+
+  if (NS_WARN_IF(!go)) {
+    return NS_ERROR_FAILURE;
+  }
+
+  ErrorResult result;
+  RefPtr<Promise> promise = Promise::Create(go, result);
+  if (NS_WARN_IF(result.Failed())) {
+    return result.StealNSResult();
+  }
+
+  profiler_get_profile_jsobject_async(aSinceTime, promise);
+
+  promise.forget(aPromise);
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsProfiler::GetElapsedTime(double* aElapsedTime)
+{
+  *aElapsedTime = profiler_time();
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsProfiler::IsActive(bool *aIsActive)
+{
+  *aIsActive = profiler_is_active();
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsProfiler::GetFeatures(uint32_t *aCount, char ***aFeatures)
+{
+  uint32_t len = 0;
+
+  const char **features = profiler_get_features();
+  if (!features) {
+    *aCount = 0;
+    *aFeatures = nullptr;
+    return NS_OK;
+  }
+
+  while (features[len]) {
+    len++;
+  }
+
+  char **featureList = static_cast<char **>
+                       (moz_xmalloc(len * sizeof(char*)));
+
+  for (size_t i = 0; i < len; i++) {
+    size_t strLen = strlen(features[i]);
+    featureList[i] = static_cast<char *>
+                         (nsMemory::Clone(features[i], (strLen + 1) * sizeof(char)));
+  }
+
+  *aFeatures = featureList;
+  *aCount = len;
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsProfiler::GetStartParams(nsIProfilerStartParams** aRetVal)
+{
+  if (!profiler_is_active()) {
+    *aRetVal = nullptr;
+  } else {
+    int entrySize = 0;
+    double interval = 0;
+    mozilla::Vector<const char*> filters;
+    mozilla::Vector<const char*> features;
+    profiler_get_start_params(&entrySize, &interval, &filters, &features);
+
+    nsTArray<nsCString> filtersArray;
+    for (uint32_t i = 0; i < filters.length(); ++i) {
+      filtersArray.AppendElement(filters[i]);
+    }
+
+    nsTArray<nsCString> featuresArray;
+    for (size_t i = 0; i < features.length(); ++i) {
+      featuresArray.AppendElement(features[i]);
+    }
+
+    nsCOMPtr<nsIProfilerStartParams> startParams =
+      new nsProfilerStartParams(entrySize, interval, featuresArray,
+                                filtersArray);
+
+    startParams.forget(aRetVal);
+  }
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsProfiler::GetBufferInfo(uint32_t *aCurrentPosition, uint32_t *aTotalSize, uint32_t *aGeneration)
+{
+  MOZ_ASSERT(aCurrentPosition);
+  MOZ_ASSERT(aTotalSize);
+  MOZ_ASSERT(aGeneration);
+  profiler_get_buffer_info(aCurrentPosition, aTotalSize, aGeneration);
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsProfiler::GetProfileGatherer(nsISupports** aRetVal)
+{
+  if (!aRetVal) {
+    return NS_ERROR_INVALID_POINTER;
+  }
+
+  // If we're not profiling, there will be no gatherer.
+  if (!profiler_is_active()) {
+    *aRetVal = nullptr;
+  } else {
+    nsCOMPtr<nsISupports> gatherer;
+    profiler_get_gatherer(getter_AddRefs(gatherer));
+    gatherer.forget(aRetVal);
+  }
+  return NS_OK;
+}
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