1 files changed, 283 insertions, 0 deletions
diff --git a/tests/auto/integrationtests/exceptionsafety_objects/oomsimulator.h b/tests/auto/integrationtests/exceptionsafety_objects/oomsimulator.h
new file mode 100644
index 0000000000..ed4bb53922
--- /dev/null
+++ b/tests/auto/integrationtests/exceptionsafety_objects/oomsimulator.h
@@ -0,0 +1,283 @@
+/****************************************************************************
+**
+** 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.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** GNU Lesser General Public License Usage
+** 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.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU General
+** Public License version 3.0 as published by the Free Software Foundation
+** and appearing in the file LICENSE.GPL included in the packaging of this
+** file. Please review the following information to ensure the GNU General
+** Public License version 3.0 requirements will be met:
+** http://www.gnu.org/copyleft/gpl.html.
+**
+** Other Usage
+** Alternatively, this file may be used in accordance with the terms and
+** conditions contained in a signed written agreement between you and Nokia.
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <malloc.h>
+#include <limits.h>
+#include <stdio.h>
+#include <exception>
+
+#if !defined(Q_OS_WIN)
+#  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 */
+
+// From glibc 2.14, the malloc hook variables are declared volatile.
+// Note: The malloc hook implementation is marked as deprecated.
+
+#if !defined(__MALLOC_HOOK_VOLATILE)
+#  define __MALLOC_HOOK_VOLATILE
+#endif
+
+/* 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 *(*__MALLOC_HOOK_VOLATILE old_malloc_hook)(size_t, const void *);
+static void *(*__MALLOC_HOOK_VOLATILE old_realloc_hook)(void *, size_t, const void *);
+static void *(*__MALLOC_HOOK_VOLATILE old_memalign_hook)(size_t, size_t, const void *);
+static void  (*__MALLOC_HOOK_VOLATILE old_free_hook)(void *, const void *);
+
+/* initializer function */
+static void my_init_hook();
+
+/* Override initialising hook from the C library. */
+
+void (*__MALLOC_HOOK_VOLATILE __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;
+
+#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;
+    }
+};
+
+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
+
+// ignore placement new and placement delete - those don't allocate.
+
+