vrpn_LamportClock.h

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#ifndef VRPN_LAMPORT_CLOCK_H
#define VRPN_LAMPORT_CLOCK_H
 
#include "vrpn_Configure.h"             // for VRPN_API
#include "vrpn_Types.h"                 // for vrpn_uint32, vrpn_bool


 
class VRPN_API vrpn_LamportTimestamp {
 
  public:
 
    vrpn_LamportTimestamp (int vectorLength, vrpn_uint32 * vector);
    vrpn_LamportTimestamp (const vrpn_LamportTimestamp &);
    ~vrpn_LamportTimestamp (void);
 
    vrpn_LamportTimestamp & operator = (const vrpn_LamportTimestamp &);
 
 
    // ACCESSORS
 
 
    vrpn_bool operator < (const vrpn_LamportTimestamp & r) const;
 
 
    // Utility functions.
 
    vrpn_uint32 operator [] (int i) const;
 
    int size (void) const;
 
 
  private:
 
    void copy (const vrpn_uint32 *);
 
    int d_timestampSize;
    vrpn_uint32 * d_timestamp;
 
    vrpn_LamportTimestamp (void);
 
};
 
 
class VRPN_API vrpn_LamportClock {
 
  public:
 
    vrpn_LamportClock (int numHosts, int ourIndex);
    ~vrpn_LamportClock (void);
 
 
    // MANIPULATORS
 
 
    void receive (const vrpn_LamportTimestamp &);
 
    vrpn_LamportTimestamp * getTimestampAndAdvance (void);
 
 
  private:
 
    int d_numHosts;
    int d_ourIndex;
    vrpn_uint32 * d_currentTimestamp;
 
};
 
 
 
#endif  // VRPN_LAMPORT_CLOCK_H