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/* -*- C++ -*- */
//=============================================================================
/**
* @file Map_Test.h
*
* $Id$
*
* This file has the class definitions needed for template generation in
* Map_Test.cpp. They have to be in a separate file so AIX xlC can
* find them at auto-instantiate time.
*
*
* @author Irfan Pyarali <irfan@cs.wustl.edu>
*/
//=============================================================================
#ifndef ACE_TESTS_MAP_TEST_H
#define ACE_TESTS_MAP_TEST_H
#include "ace/OS_NS_string.h"
#if !defined (ACE_LACKS_PRAGMA_ONCE)
# pragma once
#endif /* ACE_LACKS_PRAGMA_ONCE */
#include "ace/Active_Map_Manager.h"
#include "ace/Containers.h"
// Key data type.
typedef ACE_Array<char> KEY;
/**
* @class Key_Generator
*
* @brief Defines a key generator.
*
* This class is used in adapters of maps that do not produce keys.
*/
class Key_Generator
{
public:
Key_Generator (void)
: counter_ (0)
{
}
int operator() (KEY &key)
{
// Keep original information in the key intact.
size_t original_size = key.size ();
// Size of this counter key.
size_t counter_key_size = sizeof this->counter_;
// Resize to accommodate both the original data and the new key.
key.size (counter_key_size + original_size);
// Add new key data.
ACE_OS::memcpy (&key[original_size],
&++this->counter_,
sizeof this->counter_);
// Success.
return 0;
}
private:
u_long counter_;
};
class Hash_Key
{
public:
u_long operator () (const KEY &key) const
{
// Recover system generated part of key.
u_long value;
size_t counter_key_size = sizeof (u_long);
// Copy system key from user key.
ACE_OS::memcpy (&value,
&key[key.size () - counter_key_size],
sizeof value);
// Return the system key value as the hash value.
return value;
}
};
class Key_Adapter
{
public:
int encode (const KEY &original_key,
const ACE_Active_Map_Manager_Key &active_key,
KEY &modified_key)
{
// Keep original information in the key intact.
modified_key = original_key;
size_t original_size = modified_key.size ();
// Size of active key.
size_t active_key_size = active_key.size ();
// Resize to accommodate both the original data and the new active key.
modified_key.size (active_key_size + original_size);
// Copy active key data into user key.
active_key.encode (&modified_key[original_size]);
// Success.
return 0;
}
int decode (const KEY &modified_key,
ACE_Active_Map_Manager_Key &active_key)
{
// Read the active key data from the back of the key.
size_t active_key_size = active_key.size ();
size_t original_size = modified_key.size () - active_key_size;
// Read off value of index and generation.
active_key.decode (&modified_key[original_size]);
// Success.
return 0;
}
int decode (const KEY &modified_key,
KEY &original_key)
{
// Read the original user key data from the front of the
// modified key.
size_t active_key_size = ACE_Active_Map_Manager_Key::size ();
// Copy all the data.
original_key = modified_key;
// Resize to ignore active key data.
original_key.size (original_key.size () - active_key_size);
// Success.
return 0;
}
};
#endif /* ACE_TESTS_MAP_TEST_H */
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