83 lines
1.8 KiB
C++
83 lines
1.8 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=2 et sw=2 tw=80: */
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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 file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "NativeProfilerImpl.h"
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#include "UncensoredAllocator.h"
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namespace mozilla {
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NativeProfilerImpl::NativeProfilerImpl()
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{
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mLock = PR_NewLock();
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}
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NativeProfilerImpl::~NativeProfilerImpl()
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{
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if (mLock) {
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PR_DestroyLock(mLock);
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}
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}
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nsTArray<nsCString>
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NativeProfilerImpl::GetNames() const
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{
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return mTraceTable.GetNames();
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}
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nsTArray<TrieNode>
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NativeProfilerImpl::GetTraces() const
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{
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return mTraceTable.GetTraces();
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}
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const nsTArray<AllocEvent>&
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NativeProfilerImpl::GetEvents() const
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{
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return mAllocEvents;
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}
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void
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NativeProfilerImpl::reset()
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{
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mTraceTable.Reset();
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mAllocEvents.Clear();
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mNativeEntries.Clear();
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}
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void
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NativeProfilerImpl::sampleNative(void* addr, uint32_t size)
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{
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AutoUseUncensoredAllocator ua;
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AutoMPLock lock(mLock);
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size_t nSamples = AddBytesSampled(size);
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if (nSamples > 0) {
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nsTArray<nsCString> trace = GetStacktrace();
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AllocEvent ai(mTraceTable.Insert(trace), nSamples * mSampleSize, TimeStamp::Now());
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mNativeEntries.Put(addr, AllocEntry(mAllocEvents.Length()));
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mAllocEvents.AppendElement(ai);
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}
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}
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void
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NativeProfilerImpl::removeNative(void* addr)
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{
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AutoUseUncensoredAllocator ua;
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AutoMPLock lock(mLock);
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AllocEntry entry;
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if (!mNativeEntries.Get(addr, &entry)) {
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return;
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}
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AllocEvent& oldEvent = mAllocEvents[entry.mEventIdx];
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AllocEvent newEvent(oldEvent.mTraceIdx, -oldEvent.mSize, TimeStamp::Now());
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mAllocEvents.AppendElement(newEvent);
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mNativeEntries.Remove(addr);
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}
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} // namespace mozilla
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