82 lines
2.2 KiB
Diff
82 lines
2.2 KiB
Diff
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Index: src/Pegasus/Common/AtomicInt.h
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===================================================================
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RCS file: /cvs/MSB/pegasus/src/Pegasus/Common/AtomicInt.h,v
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retrieving revision 1.23
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diff -u -r1.23 AtomicInt.h
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--- src/Pegasus/Common/AtomicInt.h 30 Jul 2012 09:23:47 -0000 1.23
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+++ src/Pegasus/Common/AtomicInt.h 30 Apr 2013 14:04:53 -0000
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@@ -95,6 +95,64 @@
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PEGASUS_NAMESPACE_END
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+// if GNU GCC version >= 4.7.0, use the built-in atomic operations
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+#if defined(GCC_VERSION) && GCC_VERSION >= 40700
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+# define PEGASUS_ATOMIC_INT_DEFINED
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+
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+PEGASUS_NAMESPACE_BEGIN
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+
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+struct AtomicType
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+{
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+ volatile int n;
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+};
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+
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+PEGASUS_TEMPLATE_SPECIALIZATION
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+inline AtomicIntTemplate<AtomicType>::AtomicIntTemplate(Uint32 n)
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+{
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+ __atomic_store_n (&_rep.n, n, __ATOMIC_SEQ_CST);
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+}
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+
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+PEGASUS_TEMPLATE_SPECIALIZATION
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+inline AtomicIntTemplate<AtomicType>::~AtomicIntTemplate()
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+{
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+}
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+
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+PEGASUS_TEMPLATE_SPECIALIZATION
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+inline Uint32 AtomicIntTemplate<AtomicType>::get() const
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+{
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+ return __atomic_load_n (&_rep.n, __ATOMIC_SEQ_CST);
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+}
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+
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+PEGASUS_TEMPLATE_SPECIALIZATION
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+inline void AtomicIntTemplate<AtomicType>::set(Uint32 n)
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+{
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+ __atomic_store_n (&_rep.n, n, __ATOMIC_SEQ_CST);
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+}
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+
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+PEGASUS_TEMPLATE_SPECIALIZATION
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+inline void AtomicIntTemplate<AtomicType>::inc()
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+{
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+ __atomic_fetch_add (&_rep.n, 1, __ATOMIC_SEQ_CST);
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+}
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+
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+PEGASUS_TEMPLATE_SPECIALIZATION
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+inline void AtomicIntTemplate<AtomicType>::dec()
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+{
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+ __atomic_fetch_sub (&_rep.n, 1, __ATOMIC_SEQ_CST);
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+}
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+
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+PEGASUS_TEMPLATE_SPECIALIZATION
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+inline bool AtomicIntTemplate<AtomicType>::decAndTestIfZero()
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+{
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+ return (__atomic_fetch_sub (&_rep.n, 1, __ATOMIC_SEQ_CST) == 1);
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+}
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+
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+typedef AtomicIntTemplate<AtomicType> AtomicInt;
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+
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+PEGASUS_NAMESPACE_END
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+
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+#else //!(GCC_VERSION && GCC_VERSION >= 40700), use platform specific atomics
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+
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//==============================================================================
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//
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// PEGASUS_PLATFORM_LINUX_IX86_GNU
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@@ -1056,6 +1114,8 @@
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#endif /* PEGASUS_PLATFORM_AIX_RS_IBMCXX, \
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PEGASUS_PLATFORM_PASE_ISERIES_IBMCXX */
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+#endif /* GCC_VERSION && GCC_VERSION >= 40700 */
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+
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//==============================================================================
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//
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// Generic Implementation
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