69 lines
1.7 KiB
C++
69 lines
1.7 KiB
C++
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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "base/win/scoped_handle.h"
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#include <map>
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#include "base/debug/alias.h"
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#include "base/lazy_instance.h"
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#include "base/synchronization/lock.h"
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#include "base/win/windows_version.h"
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namespace {
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struct Info {
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const void* owner;
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const void* pc1;
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const void* pc2;
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DWORD thread_id;
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};
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typedef std::map<HANDLE, Info> HandleMap;
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base::LazyInstance<HandleMap>::Leaky g_handle_map = LAZY_INSTANCE_INITIALIZER;
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base::LazyInstance<base::Lock>::Leaky g_lock = LAZY_INSTANCE_INITIALIZER;
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} // namespace
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namespace base {
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namespace win {
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// Static.
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void VerifierTraits::StartTracking(HANDLE handle, const void* owner,
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const void* pc1, const void* pc2) {
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// Grab the thread id before the lock.
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DWORD thread_id = GetCurrentThreadId();
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AutoLock lock(g_lock.Get());
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Info handle_info = { owner, pc1, pc2, thread_id };
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std::pair<HANDLE, Info> item(handle, handle_info);
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std::pair<HandleMap::iterator, bool> result = g_handle_map.Get().insert(item);
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if (!result.second) {
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Info other = result.first->second;
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debug::Alias(&other);
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CHECK(false);
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}
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}
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// Static.
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void VerifierTraits::StopTracking(HANDLE handle, const void* owner,
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const void* pc1, const void* pc2) {
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AutoLock lock(g_lock.Get());
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HandleMap::iterator i = g_handle_map.Get().find(handle);
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if (i == g_handle_map.Get().end())
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CHECK(false);
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Info other = i->second;
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if (other.owner != owner) {
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debug::Alias(&other);
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CHECK(false);
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}
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g_handle_map.Get().erase(i);
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}
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} // namespace win
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} // namespace base
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