src/share/vm/runtime/atomic.hpp

rev 7555 : Improved metaprogramming

*** 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