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src/share/vm/runtime/atomic.hpp

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rev 7584 : reusability maximum

*** 24,38 **** #ifndef SHARE_VM_RUNTIME_ATOMIC_HPP #define SHARE_VM_RUNTIME_ATOMIC_HPP #include "memory/allocation.hpp" ! class Atomic : AllStatic { ! private: static jbyte cmpxchg_general(jbyte exchange_value, volatile jbyte* dest, jbyte compare_value); public: // Atomic operations on jlong types are not available on all 32-bit // platforms. If atomic ops on jlongs are defined here they must only // be used from code that verifies they are available at runtime and // can provide an alternative action if not - see supports_cx8() for --- 24,69 ---- #ifndef SHARE_VM_RUNTIME_ATOMIC_HPP #define SHARE_VM_RUNTIME_ATOMIC_HPP #include "memory/allocation.hpp" + #include "utilities/traits/selectBaseClass.hpp" ! class AtomicPlatform; ! ! class AtomicBase : AllStatic { ! protected: static jbyte cmpxchg_general(jbyte exchange_value, volatile jbyte* dest, jbyte compare_value); + public: + inline static jbyte cmpxchg(jbyte exchange_value, volatile jbyte* dest, jbyte compare_value) { + return cmpxchg_general(exchange_value, dest, compare_value); + } + }; + + // Linux + #ifdef TARGET_OS_ARCH_linux_x86 + # include "atomic_linux_x86.hpp" + #endif + + // Solaris + #ifdef TARGET_OS_ARCH_solaris_x86 + # include "atomic_solaris_x86.hpp" + #endif + + // Windows + #ifdef TARGET_OS_ARCH_windows_x86 + # include "atomic_windows_x86.hpp" + #endif + + // BSD + #ifdef TARGET_OS_ARCH_bsd_x86 + # include "atomic_bsd_x86.hpp" + #endif + + typedef SelectBaseClass<AtomicPlatform, AtomicBase>::type AtomicSuper; + class Atomic : public AtomicSuper { public: // Atomic operations on jlong types are not available on all 32-bit // platforms. If atomic ops on jlongs are defined here they must only // be used from code that verifies they are available at runtime and // can provide an alternative action if not - see supports_cx8() for
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