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57 lines
1.5 KiB
C
57 lines
1.5 KiB
C
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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim:set ts=2 sw=2 sts=2 ci et: */
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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
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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// Private interface for code shared between the platforms of mozPoisonWriteXXX
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#ifndef MOZPOISONWRITEBASE_H
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#define MOZPOISONWRITEBASE_H
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#include <stdio.h>
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#include <vector>
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#include "nspr.h"
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#include "mozilla/Util.h"
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#include "mozilla/Scoped.h"
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namespace mozilla {
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struct DebugFDAutoLockTraits {
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typedef PRLock *type;
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const static type empty() {
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return nullptr;
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}
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const static void release(type aL) {
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PR_Unlock(aL);
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}
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};
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class DebugFDAutoLock : public Scoped<DebugFDAutoLockTraits> {
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public:
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static PRLock *getDebugFDsLock() {
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// We have to use something lower level than a mutex. If we don't, we
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// can get recursive in here when called from logging a call to free.
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static PRLock *Lock = PR_NewLock();
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return Lock;
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}
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DebugFDAutoLock() : Scoped<DebugFDAutoLockTraits>(getDebugFDsLock()) {
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PR_Lock(get());
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}
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};
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bool PoisonWriteEnabled();
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void PoisonWriteBase();
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bool ValidWriteAssert(bool ok);
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void BaseCleanup();
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// This method should always be called with the debugFDs lock.
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// Note: MSVC Local static is NOT thread safe
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// http://stackoverflow.com/questions/10585928/is-static-init-thread-safe-with-vc2010
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std::vector<int>& getDebugFDs();
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}
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#endif
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