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/* -*- 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
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