spinlockacquire.hh

COPE the first practical network coding scheme which is developped on click

#ifndef CLICK_SPINLOCKACQUIRE_HH
#define CLICK_SPINLOCKACQUIRE_HH
#include <click/element.hh>
#include <click/sync.hh>
CLICK_DECLS

/*
 * =c
 * SpinlockAcquire(S)
 * =s
 * acquires spinlock
 * =d
 * Acquires the spinlock named S. S must be defined in a SpinlockInfo element.
 */

class SpinlockAcquire : public Element {
  Spinlock *_lock;
 
public:
  SpinlockAcquire()			: _lock(0) {}
  ~SpinlockAcquire()			{}

  const char *class_name() const	{ return "SpinlockAcquire"; }
  const char *processing() const	{ return AGNOSTIC; }
  
  void notify_ninputs(int n)		{ set_ninputs(n); }
  void notify_noutputs(int n)		{ set_noutputs(n); }

  int configure(Vector<String> &, ErrorHandler *);
  
  Packet *simple_action(Packet *p)  	{ _lock->acquire(); return p; }
};

CLICK_ENDDECLS
#endif