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// Copyright (c) 2005, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
// ---
// All Rights Reserved.
//
// Author: Maxim Lifantsev
//
// A file to ensure that components of heap leak checker run
// before all global object constructors
// and after all global object destructors.
//
// This file must be the last google library any google binary links against
// (we achieve this by making //base:base depend
// on //base:heap-checker-bcad, the library containing this .cc)
//
#include <stdlib.h> // for abort()
// A dummy variable to refer from heap-checker.cc.
// This is to make sure this file is not optimized out by the linker.
bool heap_leak_checker_bcad_variable;
extern void HeapLeakChecker_BeforeConstructors(); // in heap-checker.cc
extern void HeapLeakChecker_AfterDestructors(); // in heap-checker.cc
// A helper class to ensure that some components of heap leak checking
// can happen before construction and after destruction
// of all global/static objects.
class HeapLeakCheckerGlobalPrePost {
public:
HeapLeakCheckerGlobalPrePost() {
if (count_ == 0) HeapLeakChecker_BeforeConstructors();
++count_;
}
~HeapLeakCheckerGlobalPrePost() {
if (count_ <= 0) abort();
--count_;
if (count_ == 0) HeapLeakChecker_AfterDestructors();
}
private:
// Counter of constructions/destructions of objects of this class
// (just in case there are more than one of them).
static int count_;
};
int HeapLeakCheckerGlobalPrePost::count_ = 0;
// The early-construction/late-destruction global object.
static const HeapLeakCheckerGlobalPrePost heap_leak_checker_global_pre_post;
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