Long live Qt 4.5!

1 files changed, 564 insertions, 0 deletions

diff --git a/src/corelib/arch/qatomic_windows.h b/src/corelib/arch/qatomic_windows.h
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+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the QtCore module 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 either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** 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 1.0, 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.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QATOMIC_WINDOWS_H
+#define QATOMIC_WINDOWS_H
+
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE
+
+#define Q_ATOMIC_INT_REFERENCE_COUNTING_IS_ALWAYS_NATIVE
+#define Q_ATOMIC_INT_REFERENCE_COUNTING_IS_WAIT_FREE
+
+inline bool QBasicAtomicInt::isReferenceCountingNative()
+{ return true; }
+inline bool QBasicAtomicInt::isReferenceCountingWaitFree()
+{ return true; }
+
+#define Q_ATOMIC_INT_TEST_AND_SET_IS_ALWAYS_NATIVE
+#define Q_ATOMIC_INT_TEST_AND_SET_IS_WAIT_FREE
+
+inline bool QBasicAtomicInt::isTestAndSetNative()
+{ return true; }
+inline bool QBasicAtomicInt::isTestAndSetWaitFree()
+{ return true; }
+
+#define Q_ATOMIC_INT_FETCH_AND_STORE_IS_ALWAYS_NATIVE
+#define Q_ATOMIC_INT_FETCH_AND_STORE_IS_WAIT_FREE
+
+inline bool QBasicAtomicInt::isFetchAndStoreNative()
+{ return true; }
+inline bool QBasicAtomicInt::isFetchAndStoreWaitFree()
+{ return true; }
+
+#define Q_ATOMIC_INT_FETCH_AND_ADD_IS_ALWAYS_NATIVE
+#define Q_ATOMIC_INT_FETCH_AND_ADD_IS_WAIT_FREE
+
+inline bool QBasicAtomicInt::isFetchAndAddNative()
+{ return true; }
+inline bool QBasicAtomicInt::isFetchAndAddWaitFree()
+{ return true; }
+
+#define Q_ATOMIC_POINTER_TEST_AND_SET_IS_ALWAYS_NATIVE
+#define Q_ATOMIC_POINTER_TEST_AND_SET_IS_WAIT_FREE
+
+template <typename T>
+Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::isTestAndSetNative()
+{ return true; }
+template <typename T>
+Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::isTestAndSetWaitFree()
+{ return true; }
+
+#define Q_ATOMIC_POINTER_FETCH_AND_STORE_IS_ALWAYS_NATIVE
+#define Q_ATOMIC_POINTER_FETCH_AND_STORE_IS_WAIT_FREE
+
+template <typename T>
+Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::isFetchAndStoreNative()
+{ return true; }
+template <typename T>
+Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::isFetchAndStoreWaitFree()
+{ return true; }
+
+#define Q_ATOMIC_POINTER_FETCH_AND_ADD_IS_ALWAYS_NATIVE
+#define Q_ATOMIC_POINTER_FETCH_AND_ADD_IS_WAIT_FREE
+template <typename T>
+Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::isFetchAndAddNative()
+{ return true; }
+template <typename T>
+Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::isFetchAndAddWaitFree()
+{ return true; }
+
+#if defined(Q_CC_MSVC)
+
+// MSVC++ 6.0 doesn't generate correct code when optimizations are turned on!
+#if _MSC_VER < 1300 && defined (_M_IX86)
+
+inline bool QBasicAtomicInt::ref()
+{
+    volatile int *pointer = &_q_value;
+    unsigned char retVal;
+    __asm {
+        mov ECX,pointer
+        lock inc DWORD ptr[ECX]
+        setne retVal
+    }
+    return retVal != 0;
+}
+
+inline bool QBasicAtomicInt::deref()
+{
+    volatile int *pointer = &_q_value;
+    unsigned char retVal;
+    __asm {
+        mov ECX,pointer
+        lock dec DWORD ptr[ECX]
+        setne retVal
+    }
+    return retVal != 0;
+}
+
+inline bool QBasicAtomicInt::testAndSetOrdered(int expectedValue, int newValue)
+{
+    volatile int *pointer = &_q_value;
+    __asm {
+        mov EDX,pointer
+        mov EAX,expectedValue
+        mov ECX,newValue
+        lock cmpxchg dword ptr[EDX],ECX
+        mov newValue,EAX
+    }
+    return newValue == expectedValue;
+}
+
+
+inline int QBasicAtomicInt::fetchAndStoreOrdered(int newValue)
+{
+    volatile int *pointer = &_q_value;
+    __asm {
+        mov EDX,pointer
+        mov ECX,newValue
+        lock xchg dword ptr[EDX],ECX
+        mov newValue,ECX
+    }
+    return newValue;
+}
+
+
+inline int QBasicAtomicInt::fetchAndAddOrdered(int valueToAdd)
+{
+    volatile int *pointer = &_q_value;
+    __asm {
+        mov EDX,pointer
+        mov ECX,valueToAdd
+        lock xadd dword ptr[EDX],ECX
+        mov valueToAdd,ECX
+    }
+    return valueToAdd;
+}
+
+template <typename T>
+Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::testAndSetOrdered(T *expectedValue, T *newValue)
+{
+    volatile void *pointer = &_q_value;
+    __asm {
+        mov EDX,pointer
+        mov EAX,expectedValue
+        mov ECX,newValue
+        lock cmpxchg dword ptr[EDX],ECX
+        mov newValue,EAX
+    }
+    return newValue == expectedValue;
+}
+
+template <typename T>
+Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndStoreOrdered(T *newValue)
+{
+    volatile void *pointer = &_q_value;
+    __asm {
+        mov EDX,pointer
+        mov ECX,newValue
+        lock xchg dword ptr[EDX],ECX
+        mov newValue,ECX
+    }
+    return reinterpret_cast<T *>(newValue);
+}
+
+template <typename T>
+Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndAddOrdered(qptrdiff valueToAdd)
+{
+    volatile void *pointer = &_q_value;
+    valueToAdd *= sizeof(T);
+    __asm {
+        mov EDX,pointer
+        mov ECX,valueToAdd
+        lock xadd dword ptr[EDX],ECX
+        mov pointer,ECX
+    }
+    return reinterpret_cast<T *>(const_cast<void *>(pointer));
+}
+
+#else
+
+#if !defined(Q_OS_WINCE)
+// use compiler intrinsics for all atomic functions
+extern "C" {
+    long __cdecl _InterlockedIncrement(volatile long *);
+    long __cdecl _InterlockedDecrement(volatile long *);
+    long __cdecl _InterlockedExchange(volatile long *, long);
+    long __cdecl _InterlockedCompareExchange(volatile long *, long, long);
+    long __cdecl _InterlockedExchangeAdd(volatile long *, long);
+}
+#  pragma intrinsic (_InterlockedIncrement)
+#  pragma intrinsic (_InterlockedDecrement)
+#  pragma intrinsic (_InterlockedExchange)
+#  pragma intrinsic (_InterlockedCompareExchange)
+#  pragma intrinsic (_InterlockedExchangeAdd)
+
+#  ifndef _M_IX86
+extern "C" {
+    void *_InterlockedCompareExchangePointer(void * volatile *, void *, void *);
+    void *_InterlockedExchangePointer(void * volatile *, void *);
+    __int64 _InterlockedExchangeAdd64(__int64 volatile * Addend, __int64 Value);
+}
+#    pragma intrinsic (_InterlockedCompareExchangePointer)
+#    pragma intrinsic (_InterlockedExchangePointer)
+#    pragma intrinsic (_InterlockedExchangeAdd64)
+#    define _InterlockedExchangeAddPointer(a,b) \
+        _InterlockedExchangeAdd64(reinterpret_cast<volatile __int64 *>(a), __int64(b))
+#  else
+#    define _InterlockedCompareExchangePointer(a,b,c) \
+        _InterlockedCompareExchange(reinterpret_cast<volatile long *>(a), long(b), long(c))
+#    define _InterlockedExchangePointer(a, b) \
+        _InterlockedExchange(reinterpret_cast<volatile long *>(a), long(b))
+#    define _InterlockedExchangeAddPointer(a,b) \
+        _InterlockedExchangeAdd(reinterpret_cast<volatile long *>(a), long(b))
+#  endif
+inline bool QBasicAtomicInt::ref()
+{
+    return _InterlockedIncrement(reinterpret_cast<volatile long *>(&_q_value)) != 0;
+}
+
+inline bool QBasicAtomicInt::deref()
+{
+    return _InterlockedDecrement(reinterpret_cast<volatile long *>(&_q_value)) != 0;
+}
+
+inline bool QBasicAtomicInt::testAndSetOrdered(int expectedValue, int newValue)
+{
+    return _InterlockedCompareExchange(reinterpret_cast<volatile long *>(&_q_value), newValue, expectedValue) == expectedValue;
+}
+
+inline int QBasicAtomicInt::fetchAndStoreOrdered(int newValue)
+{
+    return _InterlockedExchange(reinterpret_cast<volatile long *>(&_q_value), newValue);
+}
+
+inline int QBasicAtomicInt::fetchAndAddOrdered(int valueToAdd)
+{
+    return _InterlockedExchangeAdd(reinterpret_cast<volatile long *>(&_q_value), valueToAdd);
+}
+
+#if defined(Q_CC_MSVC)
+#pragma warning( push )
+#pragma warning( disable : 4311 ) // ignoring the warning from /Wp64
+#endif
+
+template <typename T>
+Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::testAndSetOrdered(T *expectedValue, T *newValue)
+{
+    return (_InterlockedCompareExchangePointer(reinterpret_cast<void * volatile *>(&_q_value),
+                                              newValue, expectedValue) == 
+#ifndef _M_IX86
+                                              (void *)
+#else
+                                              (long)  
+#endif
+                                              (expectedValue));
+}
+
+#if defined(Q_CC_MSVC)
+#pragma warning( pop )
+#endif
+
+template <typename T>
+Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndStoreOrdered(T *newValue)
+{
+    return reinterpret_cast<T *>(_InterlockedExchangePointer(reinterpret_cast<void * volatile *>(&_q_value), newValue));
+}
+
+template <typename T>
+Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndAddOrdered(qptrdiff valueToAdd)
+{
+    return reinterpret_cast<T *>(_InterlockedExchangeAddPointer(reinterpret_cast<void * volatile *>(&_q_value), valueToAdd * sizeof(T)));
+}
+
+#else // Q_OS_WINCE
+
+#if _WIN32_WCE < 0x600 && defined(_X86_)
+// For X86 Windows CE build we need to include winbase.h to be able
+// to catch the inline functions which overwrite the regular 
+// definitions inside of coredll.dll. Though one could use the 
+// original version of Increment/Decrement, the others are not
+// exported at all.
+#include <winbase.h>
+#else
+
+#if _WIN32_WCE >= 0x600
+#define Q_ARGUMENT_TYPE volatile
+#  if defined(_X86_)
+#    define InterlockedIncrement _InterlockedIncrement
+#    define InterlockedDecrement _InterlockedDecrement
+#    define InterlockedExchange _InterlockedExchange
+#    define InterlockedCompareExchange _InterlockedCompareExchange
+#    define InterlockedExchangeAdd _InterlockedExchangeAdd
+#  endif
+#else
+#define Q_ARGUMENT_TYPE
+#endif
+
+extern "C" {
+long __cdecl InterlockedIncrement(long Q_ARGUMENT_TYPE * lpAddend);
+long __cdecl InterlockedDecrement(long Q_ARGUMENT_TYPE * lpAddend);
+long __cdecl InterlockedExchange(long Q_ARGUMENT_TYPE * Target, long Value);
+long __cdecl InterlockedCompareExchange(long Q_ARGUMENT_TYPE * Destination, long Exchange, long Comperand);
+long __cdecl InterlockedExchangeAdd(long Q_ARGUMENT_TYPE * Addend, long Value);
+}
+
+#if _WIN32_WCE >= 0x600 && defined(_X86_)
+#  pragma intrinsic (_InterlockedIncrement)
+#  pragma intrinsic (_InterlockedDecrement)
+#  pragma intrinsic (_InterlockedExchange)
+#  pragma intrinsic (_InterlockedCompareExchange)
+#  pragma intrinsic (_InterlockedExchangeAdd)
+#endif
+
+#endif
+
+
+inline bool QBasicAtomicInt::ref()
+{
+    return InterlockedIncrement((long*)(&_q_value)) != 0;
+}
+
+inline bool QBasicAtomicInt::deref()
+{
+    return InterlockedDecrement((long*)(&_q_value)) != 0;
+}
+
+inline bool QBasicAtomicInt::testAndSetOrdered(int expectedValue, int newValue)
+{
+    return InterlockedCompareExchange((long*)(&_q_value), newValue, expectedValue) == expectedValue;
+}
+
+inline int QBasicAtomicInt::fetchAndStoreOrdered(int newValue)
+{
+    return InterlockedExchange((long*)(&_q_value), newValue);
+}
+
+inline int QBasicAtomicInt::fetchAndAddOrdered(int valueToAdd)
+{
+    return InterlockedExchangeAdd((long*)(&_q_value), valueToAdd);
+}
+
+template <typename T>
+Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::testAndSetOrdered(T *expectedValue, T *newValue)
+{
+    return (InterlockedCompareExchange((long*)(&_q_value),
+                                              (long)newValue, (long)expectedValue) == 
+                                              (long)(expectedValue));
+}
+
+template <typename T>
+Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndStoreOrdered(T *newValue)
+{
+    return reinterpret_cast<T *>(InterlockedExchange((long*)(&_q_value), (long)newValue));
+}
+
+template <typename T>
+Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndAddOrdered(qptrdiff valueToAdd)
+{
+    return reinterpret_cast<T *>(InterlockedExchangeAdd((long*)(&_q_value), valueToAdd * sizeof(T)));
+}
+
+#endif //Q_OS_WINCE
+
+#endif // _MSC_VER ...
+
+#else
+
+// __INTERLOCKED_DECLARED is defined in MinGW's winbase.h. Simply, preferrably we use
+// MinGW's definition, such that we pick up variations in the headers.
+#ifndef __INTERLOCKED_DECLARED
+#define __INTERLOCKED_DECLARED
+extern "C" {
+    __declspec(dllimport) long __stdcall InterlockedCompareExchange(long *, long, long);
+    __declspec(dllimport) long __stdcall InterlockedIncrement(long *);
+    __declspec(dllimport) long __stdcall InterlockedDecrement(long *);
+    __declspec(dllimport) long __stdcall InterlockedExchange(long *, long);
+    __declspec(dllimport) long __stdcall InterlockedExchangeAdd(long *, long);
+}
+#endif
+
+inline bool QBasicAtomicInt::ref()
+{
+    return InterlockedIncrement(reinterpret_cast<long *>(const_cast<int *>(&_q_value))) != 0;
+}
+
+inline bool QBasicAtomicInt::deref()
+{
+    return InterlockedDecrement(reinterpret_cast<long *>(const_cast<int *>(&_q_value))) != 0;
+}
+
+inline bool QBasicAtomicInt::testAndSetOrdered(int expectedValue, int newValue)
+{
+    return InterlockedCompareExchange(reinterpret_cast<long *>(const_cast<int *>(&_q_value)), newValue, expectedValue) == expectedValue;
+}
+
+inline int QBasicAtomicInt::fetchAndStoreOrdered(int newValue)
+{ return InterlockedExchange(reinterpret_cast<long *>(const_cast<int *>(&_q_value)), newValue); }
+
+inline int QBasicAtomicInt::fetchAndAddOrdered(int valueToAdd)
+{
+    return InterlockedExchangeAdd(reinterpret_cast<long *>(const_cast<int *>(&_q_value)), valueToAdd);
+}
+
+template <typename T>
+Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::testAndSetOrdered(T *expectedValue, T* newValue)
+{ return InterlockedCompareExchange(reinterpret_cast<long *>(const_cast<T **>(&_q_value)),
+                                    reinterpret_cast<long>(newValue),
+                                    reinterpret_cast<long>(expectedValue)) == reinterpret_cast<long>(expectedValue); }
+
+template <typename T>
+Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndStoreOrdered(T* newValue)
+{ return reinterpret_cast<T *>(InterlockedExchange(reinterpret_cast<long *>(const_cast<T **>(&_q_value)),
+			                           reinterpret_cast<long>(newValue))); }
+
+template <typename T>
+Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndAddOrdered(qptrdiff valueToAdd)
+{ return reinterpret_cast<T *>(InterlockedExchangeAdd(reinterpret_cast<long *>(const_cast<T **>(&_q_value)), valueToAdd * sizeof(T))); }
+
+#endif // Q_CC_GNU
+
+inline bool QBasicAtomicInt::testAndSetRelaxed(int expectedValue, int newValue)
+{
+    return testAndSetOrdered(expectedValue, newValue);
+}
+
+inline bool QBasicAtomicInt::testAndSetAcquire(int expectedValue, int newValue)
+{
+    return testAndSetOrdered(expectedValue, newValue);
+}
+
+inline bool QBasicAtomicInt::testAndSetRelease(int expectedValue, int newValue)
+{
+    return testAndSetOrdered(expectedValue, newValue);
+}
+
+inline int QBasicAtomicInt::fetchAndStoreRelaxed(int newValue)
+{
+    return fetchAndStoreOrdered(newValue);
+}
+
+inline int QBasicAtomicInt::fetchAndStoreAcquire(int newValue)
+{
+    return fetchAndStoreOrdered(newValue);
+}
+
+inline int QBasicAtomicInt::fetchAndStoreRelease(int newValue)
+{
+    return fetchAndStoreOrdered(newValue);
+}
+
+inline int QBasicAtomicInt::fetchAndAddRelaxed(int valueToAdd)
+{
+    return fetchAndAddOrdered(valueToAdd);
+}
+
+inline int QBasicAtomicInt::fetchAndAddAcquire(int valueToAdd)
+{
+    return fetchAndAddOrdered(valueToAdd);
+}
+
+inline int QBasicAtomicInt::fetchAndAddRelease(int valueToAdd)
+{
+    return fetchAndAddOrdered(valueToAdd);
+}
+
+template <typename T>
+Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::testAndSetRelaxed(T *expectedValue, T *newValue)
+{
+    return testAndSetOrdered(expectedValue, newValue);
+}
+
+template <typename T>
+Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::testAndSetAcquire(T *expectedValue, T *newValue)
+{
+    return testAndSetOrdered(expectedValue, newValue);
+}
+
+template <typename T>
+Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::testAndSetRelease(T *expectedValue, T *newValue)
+{
+    return testAndSetOrdered(expectedValue, newValue);
+}
+
+template <typename T>
+Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndStoreRelaxed(T *newValue)
+{
+    return fetchAndStoreOrdered(newValue);
+}
+
+template <typename T>
+Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndStoreAcquire(T *newValue)
+{
+    return fetchAndStoreOrdered(newValue);
+}
+
+template <typename T>
+Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndStoreRelease(T *newValue)
+{
+    return fetchAndStoreOrdered(newValue);
+}
+
+template <typename T>
+Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndAddRelaxed(qptrdiff valueToAdd)
+{
+    return fetchAndAddOrdered(valueToAdd);
+}
+
+template <typename T>
+Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndAddAcquire(qptrdiff valueToAdd)
+{
+    return fetchAndAddOrdered(valueToAdd);
+}
+
+template <typename T>
+Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndAddRelease(qptrdiff valueToAdd)
+{
+    return fetchAndAddOrdered(valueToAdd);
+}
+
+QT_END_NAMESPACE
+
+QT_END_HEADER
+
+#endif // QATOMIC_WINDOWS_H