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From 642e1ac635f2563b4a14c255374f02645ae85dac Mon Sep 17 00:00:00 2001
From: Nayana-ibm <nayana.thorat@gmail.com>
Date: Mon, 27 Nov 2017 05:43:30 -0500
Subject: [PATCH] Adding Release_CompareAndSwap 64-bit variant
---
src/google/protobuf/stubs/atomicops_internals_generic_gcc.h | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/src/google/protobuf/stubs/atomicops_internals_generic_gcc.h b/src/google/protobuf/stubs/atomicops_internals_generic_gcc.h
index 0b0b06ce6c..075c406aba 100644
--- a/src/google/protobuf/stubs/atomicops_internals_generic_gcc.h
+++ b/src/google/protobuf/stubs/atomicops_internals_generic_gcc.h
@@ -146,6 +146,14 @@ inline Atomic64 NoBarrier_Load(volatile const Atomic64* ptr) {
return __atomic_load_n(ptr, __ATOMIC_RELAXED);
}
+inline Atomic64 Release_CompareAndSwap(volatile Atomic64* ptr,
+ Atomic64 old_value,
+ Atomic64 new_value) {
+ __atomic_compare_exchange_n(ptr, &old_value, new_value, false,
+ __ATOMIC_RELEASE, __ATOMIC_ACQUIRE);
+ return old_value;
+}
+
#endif // defined(__LP64__)
} // namespace internal
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