24 
  25 #ifndef OS_LINUX_WAITBARRIER_LINUX_HPP
  26 #define OS_LINUX_WAITBARRIER_LINUX_HPP
  27 
  28 #include "memory/allocation.hpp"
  29 
  30 class LinuxWaitBarrier : public CHeapObj<mtInternal> {
  31   volatile int _futex_barrier;
  32 
  33   // Prevent copying and assignment of LinuxWaitBarrier instances.
  34   LinuxWaitBarrier(const LinuxWaitBarrier&);
  35   LinuxWaitBarrier& operator=(const LinuxWaitBarrier&);
  36 
  37  public:
  38   LinuxWaitBarrier() : _futex_barrier(0) {};
  39   ~LinuxWaitBarrier() {};
  40 
  41   const char* description() { return "futex"; }
  42 
  43   void arm(int barrier_tag);
  44   void disarm();
  45   void wake();
  46   void wait(int barrier_tag);
  47 };
  48 
  49 #endif // OS_LINUX_WAITBARRIER_LINUX_HPP

  24 
  25 #ifndef OS_LINUX_WAITBARRIER_LINUX_HPP
  26 #define OS_LINUX_WAITBARRIER_LINUX_HPP
  27 
  28 #include "memory/allocation.hpp"
  29 
  30 class LinuxWaitBarrier : public CHeapObj<mtInternal> {
  31   volatile int _futex_barrier;
  32 
  33   // Prevent copying and assignment of LinuxWaitBarrier instances.
  34   LinuxWaitBarrier(const LinuxWaitBarrier&);
  35   LinuxWaitBarrier& operator=(const LinuxWaitBarrier&);
  36 
  37  public:
  38   LinuxWaitBarrier() : _futex_barrier(0) {};
  39   ~LinuxWaitBarrier() {};
  40 
  41   const char* description() { return "futex"; }
  42 
  43   void arm(int barrier_tag);

  44   void wake();
  45   void wait(int barrier_tag);
  46 };
  47 
  48 #endif // OS_LINUX_WAITBARRIER_LINUX_HPP