summaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
authorMorten Johan Sorvig <morten.sorvig@nokia.com>2012-01-13 08:55:43 +0100
committerQt by Nokia <qt-info@nokia.com>2012-01-20 14:23:01 +0100
commitab7b849c41a5cfafc1b1d7476eab224c349349ec (patch)
tree98414808dd0f27052fe1be8099e4affb93fd9fe3
parent2c8a0a90bee274d36aa2c4c6ad112b8a634100a7 (diff)
Add atomic implementation for Native Client.
Uses gcc compiler intrinsics, similar to avr32. Change-Id: I10cc2bd3cad67ee002386bab1ea764a4ff5ce727 Reviewed-by: Morten Johan Sørvig <morten.sorvig@nokia.com>
-rw-r--r--src/corelib/arch/arch.pri3
-rw-r--r--src/corelib/arch/nacl/arch.pri3
-rw-r--r--src/corelib/arch/qatomic_arch.h2
-rw-r--r--src/corelib/arch/qatomic_nacl.h252
4 files changed, 258 insertions, 2 deletions
diff --git a/src/corelib/arch/arch.pri b/src/corelib/arch/arch.pri
index 6185b92757..40e16f72db 100644
--- a/src/corelib/arch/arch.pri
+++ b/src/corelib/arch/arch.pri
@@ -28,7 +28,8 @@ integrity:HEADERS += arch/qatomic_integrity.h
arch/qatomic_s390.h \
arch/qatomic_x86_64.h \
arch/qatomic_sh.h \
- arch/qatomic_sh4a.h
+ arch/qatomic_sh4a.h \
+ arch/qatomic_nacl.h
QT_ARCH_CPP = $$QT_SOURCE_TREE/src/corelib/arch/$$QT_ARCH
DEPENDPATH += $$QT_ARCH_CPP
diff --git a/src/corelib/arch/nacl/arch.pri b/src/corelib/arch/nacl/arch.pri
new file mode 100644
index 0000000000..8a570f5925
--- /dev/null
+++ b/src/corelib/arch/nacl/arch.pri
@@ -0,0 +1,3 @@
+#
+# Native Client architecture
+#
diff --git a/src/corelib/arch/qatomic_arch.h b/src/corelib/arch/qatomic_arch.h
index 66e12cc95b..96fc6f1cf3 100644
--- a/src/corelib/arch/qatomic_arch.h
+++ b/src/corelib/arch/qatomic_arch.h
@@ -89,7 +89,7 @@ QT_BEGIN_HEADER
#elif defined(QT_ARCH_SH4A)
# include "QtCore/qatomic_sh4a.h"
#elif defined(QT_ARCH_NACL)
-# include "QtCore/qatomic_generic.h"
+# include "QtCore/qatomic_nacl.h"
#else
# error "Qt has not been ported to this architecture"
#endif
diff --git a/src/corelib/arch/qatomic_nacl.h b/src/corelib/arch/qatomic_nacl.h
new file mode 100644
index 0000000000..ad5ae676eb
--- /dev/null
+++ b/src/corelib/arch/qatomic_nacl.h
@@ -0,0 +1,252 @@
+/****************************************************************************
+ **
+ ** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
+ ** All rights reserved.
+ ** Contact: Nokia Corporation (qt-info@nokia.com)
+ **
+ ** This file is part of the QtCore module 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.
+ **
+ **
+ **
+ **
+ **
+ ** $QT_END_LICENSE$
+ **
+ ****************************************************************************/
+
+#ifndef QATOMIC_NACL_H
+#define QATOMIC_NACL_H
+
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE
+
+#define Q_ATOMIC_INT_REFERENCE_COUNTING_IS_ALWAYS_NATIVE
+
+inline bool QBasicAtomicInt::isReferenceCountingNative()
+{ return true; }
+inline bool QBasicAtomicInt::isReferenceCountingWaitFree()
+{ return false; }
+
+#define Q_ATOMIC_INT_TEST_AND_SET_IS_ALWAYS_NATIVE
+
+inline bool QBasicAtomicInt::isTestAndSetNative()
+{ return true; }
+inline bool QBasicAtomicInt::isTestAndSetWaitFree()
+{ return false; }
+
+#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
+
+inline bool QBasicAtomicInt::isFetchAndAddNative()
+{ return true; }
+inline bool QBasicAtomicInt::isFetchAndAddWaitFree()
+{ return false; }
+
+#define Q_ATOMIC_POINTER_TEST_AND_SET_IS_ALWAYS_NATIVE
+
+template <typename T>
+Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::isTestAndSetNative()
+{ return true; }
+template <typename T>
+Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::isTestAndSetWaitFree()
+{ return false; }
+
+#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
+
+template <typename T>
+Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::isFetchAndAddNative()
+{ return true; }
+template <typename T>
+Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::isFetchAndAddWaitFree()
+{ return false; }
+
+inline bool QBasicAtomicInt::ref()
+{
+ return __sync_add_and_fetch(&_q_value, 1);
+}
+
+inline bool QBasicAtomicInt::deref()
+{
+ return __sync_sub_and_fetch(&_q_value, 1);
+}
+
+inline bool QBasicAtomicInt::testAndSetOrdered(int expectedValue, int newValue)
+{
+ return __sync_bool_compare_and_swap(&_q_value, expectedValue, newValue);
+}
+
+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::fetchAndStoreOrdered(int newValue)
+{
+ return __sync_lock_test_and_set(&_q_value, 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::fetchAndAddOrdered(int valueToAdd)
+{
+ return __sync_fetch_and_add(&_q_value, valueToAdd);
+}
+
+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>::testAndSetOrdered(T *expectedValue, T *newValue)
+{
+ return __sync_bool_compare_and_swap(&_q_value, expectedValue, newValue);
+}
+
+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>::fetchAndStoreOrdered(T *newValue)
+{
+ return __sync_lock_test_and_set(&_q_value, 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>::fetchAndAddOrdered(qptrdiff valueToAdd)
+{
+ return __sync_fetch_and_add(&_q_value, valueToAdd * sizeof(T));
+}
+
+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_NACL_H