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-rw-r--r--tests/auto/exceptionsafety_objects/oomsimulator.h357
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diff --git a/tests/auto/exceptionsafety_objects/oomsimulator.h b/tests/auto/exceptionsafety_objects/oomsimulator.h
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+/****************************************************************************
+**
+** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the test suite of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights. These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef Q_OS_SYMBIAN
+#include <malloc.h>
+#endif
+#include <limits.h>
+#include <stdio.h>
+#include <exception>
+
+#if !defined(Q_OS_WIN) && !defined(Q_OS_SYMBIAN)
+# include "3rdparty/memcheck.h"
+#endif
+
+static bool mallocFailActive = false;
+static int mallocFailIndex = 0;
+static int mallocCount = 0;
+
+static void my_terminate_handler()
+{
+ // set a breakpoint here to get a backtrace for your uncaught exceptions
+ fprintf(stderr, "Uncaught Exception Detected. Set a breakpoint in my_terminate_handler()\n");
+ exit(1);
+}
+
+#ifdef __GLIBC__
+/* Use glibc's memory allocation hooks */
+
+/* our hooks */
+static void *my_malloc_hook(size_t, const void *);
+static void *my_realloc_hook(void *, size_t, const void *);
+static void *my_memalign_hook(size_t, size_t, const void *);
+static void my_free_hook(void *, const void *);
+
+/* original hooks. */
+static void *(*old_malloc_hook)(size_t, const void *);
+static void *(*old_realloc_hook)(void *, size_t, const void *);
+static void *(*old_memalign_hook)(size_t, size_t, const void *);
+static void (*old_free_hook)(void *, const void *);
+
+/* initializer function */
+static void my_init_hook();
+
+/* Override initialising hook from the C library. */
+void (*__malloc_initialize_hook) (void) = my_init_hook;
+
+static void disableHooks()
+{
+ __malloc_hook = old_malloc_hook;
+ __realloc_hook = old_realloc_hook;
+ __memalign_hook = old_memalign_hook;
+ __free_hook = old_free_hook;
+}
+
+static void enableHooks()
+{
+ __malloc_hook = my_malloc_hook;
+ __realloc_hook = my_realloc_hook;
+ __memalign_hook = my_memalign_hook;
+ __free_hook = my_free_hook;
+}
+
+void my_init_hook()
+{
+ old_malloc_hook = __malloc_hook;
+ old_realloc_hook = __realloc_hook;
+ old_memalign_hook = __memalign_hook;
+ old_free_hook = __free_hook;
+ enableHooks();
+}
+
+void *my_malloc_hook(size_t size, const void *)
+{
+ ++mallocCount;
+
+ if (mallocFailActive && --mallocFailIndex < 0)
+ return 0; // simulate OOM
+
+ __malloc_hook = old_malloc_hook;
+ void *result = ::malloc (size);
+ __malloc_hook = my_malloc_hook;
+
+ return result;
+}
+
+void *my_memalign_hook(size_t alignment, size_t size, const void *)
+{
+ ++mallocCount;
+
+ if (mallocFailActive && --mallocFailIndex < 0)
+ return 0; // simulate OOM
+
+ __memalign_hook = old_memalign_hook;
+ void *result = ::memalign(alignment, size);
+ __memalign_hook = my_memalign_hook;
+
+ return result;
+}
+
+void *my_realloc_hook(void *ptr, size_t size, const void *)
+{
+ ++mallocCount;
+
+ if (mallocFailActive && --mallocFailIndex < 0)
+ return 0; // simulate OOM
+
+ __realloc_hook = old_realloc_hook;
+ __malloc_hook = old_malloc_hook;
+ void *result = ::realloc(ptr, size);
+ __malloc_hook = my_malloc_hook;
+ __realloc_hook = my_realloc_hook;
+
+ return result;
+}
+
+void my_free_hook(void *ptr, const void *)
+{
+ __free_hook = old_free_hook;
+ ::free(ptr);
+ __free_hook = my_free_hook;
+}
+
+#elif defined(Q_CC_MSVC)
+
+#include "crtdbg.h"
+
+static int qCrtAllocHook(int allocType, void * /*userData*/, size_t /*size*/,
+ int blockType, long /*requestNumber*/,
+ const unsigned char * /*filename*/, int /*lineNumber*/)
+{
+ if (blockType == _CRT_BLOCK)
+ return TRUE; // ignore allocations from the C library
+
+ switch (allocType) {
+ case _HOOK_ALLOC:
+ case _HOOK_REALLOC:
+ ++mallocCount;
+ if (mallocFailActive && --mallocFailIndex < 0)
+ return FALSE; // simulate OOM
+ }
+
+ return TRUE;
+}
+
+static struct QCrtDebugRegistrator
+{
+ QCrtDebugRegistrator()
+ {
+ _CrtSetAllocHook(qCrtAllocHook);
+ }
+
+} crtDebugRegistrator;
+
+#elif defined(Q_OS_SYMBIAN)
+
+struct QAllocFailAllocator : public RAllocator
+{
+ QAllocFailAllocator() : allocator(User::Allocator())
+ {
+ User::SwitchAllocator(this);
+ }
+
+ ~QAllocFailAllocator()
+ {
+ User::SwitchAllocator(&allocator);
+ }
+
+ RAllocator& allocator;
+
+ // from MAllocator
+ TAny* Alloc(TInt aSize)
+ {
+ ++mallocCount;
+ if (mallocFailActive && --mallocFailIndex < 0)
+ return 0; // simulate OOM
+ return allocator.Alloc(aSize);
+ }
+
+ void Free(TAny* aPtr)
+ {
+ allocator.Free(aPtr);
+ }
+
+ TAny* ReAlloc(TAny* aPtr, TInt aSize, TInt aMode)
+ {
+ ++mallocCount;
+ if (mallocFailActive && --mallocFailIndex < 0)
+ return 0; // simulate OOM
+ return allocator.ReAlloc(aPtr, aSize, aMode);
+ }
+
+ TInt AllocLen(const TAny* aCell) const
+ {
+ return allocator.AllocLen(aCell);
+ }
+
+ TInt Compress()
+ {
+ return allocator.Compress();
+ }
+
+ void Reset()
+ {
+ allocator.Reset();
+ }
+
+ TInt AllocSize(TInt& aTotalAllocSize) const
+ {
+ return allocator.AllocSize(aTotalAllocSize);
+ }
+
+ TInt Available(TInt& aBiggestBlock) const
+ {
+ return allocator.Available(aBiggestBlock);
+ }
+
+ TInt DebugFunction(TInt aFunc, TAny* a1, TAny* a2)
+ {
+ return allocator.DebugFunction(aFunc, a1, a2);
+ }
+
+ TInt Extension_(TUint aExtensionId, TAny*& a0, TAny* a1)
+ {
+ return ((MAllocator&)allocator).Extension_(aExtensionId, a0, a1);
+ }
+};
+
+QAllocFailAllocator symbianTestAllocator;
+
+#endif
+
+struct AllocFailer
+{
+ inline AllocFailer(int index) { reactivateAt(index); }
+ inline ~AllocFailer() { deactivate(); }
+
+ inline void reactivateAt(int index)
+ {
+#ifdef RUNNING_ON_VALGRIND
+ if (RUNNING_ON_VALGRIND)
+ VALGRIND_ENABLE_OOM_AT_ALLOC_INDEX(VALGRIND_GET_ALLOC_INDEX + index + 1);
+#endif
+ mallocFailIndex = index;
+ mallocFailActive = true;
+ }
+
+ inline void deactivate()
+ {
+ mallocFailActive = false;
+#ifdef RUNNING_ON_VALGRIND
+ VALGRIND_ENABLE_OOM_AT_ALLOC_INDEX(0);
+#endif
+ }
+
+ inline int currentAllocIndex() const
+ {
+#ifdef RUNNING_ON_VALGRIND
+ if (RUNNING_ON_VALGRIND)
+ return VALGRIND_GET_ALLOC_INDEX;
+#endif
+ return mallocCount;
+ }
+
+ static bool initialize()
+ {
+ std::set_terminate(my_terminate_handler);
+#ifdef RUNNING_ON_VALGRIND
+ if (RUNNING_ON_VALGRIND) {
+ if (VALGRIND_GET_ALLOC_INDEX == -1u) {
+ qWarning("You must use a valgrind with oom simulation support");
+ return false;
+ }
+ // running in valgrind - don't use glibc hooks
+ disableHooks();
+
+ // never stop simulating OOM
+ VALGRIND_DISABLE_OOM_AT_ALLOC_INDEX(-1u);
+ }
+#endif
+ return true;
+ }
+};
+
+#ifndef Q_OS_SYMBIAN
+
+static void *new_helper(std::size_t size)
+{
+ void *ptr = malloc(size);
+ if (!ptr)
+ throw std::bad_alloc();
+ return ptr;
+}
+
+#ifdef Q_CC_MSVC
+# pragma warning(push)
+# pragma warning(disable: 4290)
+#endif
+
+// overload operator new
+void* operator new(size_t size) throw (std::bad_alloc) { return new_helper(size); }
+void* operator new[](size_t size) throw (std::bad_alloc) { return new_helper(size); }
+void* operator new(size_t size, const std::nothrow_t&) throw() { return malloc(size); }
+void* operator new[](std::size_t size, const std::nothrow_t&) throw() { return malloc(size); }
+
+// overload operator delete
+void operator delete(void *ptr) throw() { if (ptr) free(ptr); }
+void operator delete[](void *ptr) throw() { if (ptr) free(ptr); }
+void operator delete(void *ptr, const std::nothrow_t&) throw() { if (ptr) free(ptr); }
+void operator delete[](void *ptr, const std::nothrow_t&) throw() { if (ptr) free (ptr); }
+
+#ifdef Q_CC_MSVC
+# pragma warning(pop)
+#endif
+
+#endif
+
+// ignore placement new and placement delete - those don't allocate.
+
+