1 files changed, 82 insertions, 0 deletions
diff --git a/tools/memory-profiler/NativeProfilerImpl.cpp b/tools/memory-profiler/NativeProfilerImpl.cpp
new file mode 100644
index 000000000..48c684c72
--- /dev/null
+++ b/tools/memory-profiler/NativeProfilerImpl.cpp
@@ -0,0 +1,82 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=2 et sw=2 tw=80: */
+/* 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 "NativeProfilerImpl.h"
+
+#include "UncensoredAllocator.h"
+
+namespace mozilla {
+
+NativeProfilerImpl::NativeProfilerImpl()
+{
+  mLock = PR_NewLock();
+}
+
+NativeProfilerImpl::~NativeProfilerImpl()
+{
+  if (mLock) {
+    PR_DestroyLock(mLock);
+  }
+}
+
+nsTArray<nsCString>
+NativeProfilerImpl::GetNames() const
+{
+  return mTraceTable.GetNames();
+}
+
+nsTArray<TrieNode>
+NativeProfilerImpl::GetTraces() const
+{
+  return mTraceTable.GetTraces();
+}
+
+const nsTArray<AllocEvent>&
+NativeProfilerImpl::GetEvents() const
+{
+  return mAllocEvents;
+}
+
+void
+NativeProfilerImpl::reset()
+{
+  mTraceTable.Reset();
+  mAllocEvents.Clear();
+  mNativeEntries.Clear();
+}
+
+void
+NativeProfilerImpl::sampleNative(void* addr, uint32_t size)
+{
+  AutoUseUncensoredAllocator ua;
+  AutoMPLock lock(mLock);
+  size_t nSamples = AddBytesSampled(size);
+  if (nSamples > 0) {
+    nsTArray<nsCString> trace = GetStacktrace();
+    AllocEvent ai(mTraceTable.Insert(trace), nSamples * mSampleSize, TimeStamp::Now());
+    mNativeEntries.Put(addr, AllocEntry(mAllocEvents.Length()));
+    mAllocEvents.AppendElement(ai);
+  }
+}
+
+void
+NativeProfilerImpl::removeNative(void* addr)
+{
+  AutoUseUncensoredAllocator ua;
+  AutoMPLock lock(mLock);
+
+  AllocEntry entry;
+  if (!mNativeEntries.Get(addr, &entry)) {
+    return;
+  }
+
+  AllocEvent& oldEvent = mAllocEvents[entry.mEventIdx];
+  AllocEvent newEvent(oldEvent.mTraceIdx, -oldEvent.mSize, TimeStamp::Now());
+  mAllocEvents.AppendElement(newEvent);
+  mNativeEntries.Remove(addr);
+}
+
+} // namespace mozilla