J9SegmentProvider.hpp

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#ifndef J9_SEGMENT_PROVIDER
#define J9_SEGMENT_PROVIDER

#pragma once

#include <stddef.h>
#include <new>

extern "C" {
struct J9MemorySegment;
}

namespace J9 {

class J9SegmentProvider
   {
public:
   virtual J9MemorySegment& request(size_t requiredSize) = 0;
   virtual void release(J9MemorySegment& segment) throw() = 0;
   virtual size_t getPreferredSegmentSize() { return 0; }

protected:
   J9SegmentProvider();
   J9SegmentProvider(const J9SegmentProvider &other);

   /*
    * Require knowledge of the concrete class in order to destroy SegmentProviders
    */
   virtual ~J9SegmentProvider() throw();
   };

} // namespace J9

void *operator new(size_t, J9MemorySegment &) throw();
void *operator new[](size_t, J9MemorySegment &) throw();
void operator delete(void *, J9MemorySegment &) throw();
void operator delete[](void *, J9MemorySegment &) throw();

#endif // J9_SEGMENT_PROVIDER