hashed_nonce_generator.h

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// Copyright 2013 Google Inc. All Rights Reserved.


#ifndef PAGESPEED_KERNEL_UTIL_HASHED_NONCE_GENERATOR_H_
#define PAGESPEED_KERNEL_UTIL_HASHED_NONCE_GENERATOR_H_

#include "pagespeed/kernel/base/abstract_mutex.h"
#include "pagespeed/kernel/base/basictypes.h"
#include "pagespeed/kernel/base/scoped_ptr.h"
#include "pagespeed/kernel/base/string_util.h"
#include "pagespeed/kernel/util/nonce_generator.h"

namespace net_instaweb {

class Hasher;

class HashedNonceGenerator : public NonceGenerator {
 public:
  HashedNonceGenerator(
      const Hasher* hasher, StringPiece key, AbstractMutex* mutex);
  virtual ~HashedNonceGenerator();

 protected:
  virtual uint64 NewNonceImpl();

 private:
  const Hasher* hasher_;
  scoped_array<char> key_;
  int key_size_;
  uint64 counter_;

  
};

}  

#endif