Summary: Implement mem_hdr debugging.

[thirdparty/squid.git] / src / mem_node.h

/*
 * $Id: mem_node.h,v 1.6 2003/09/22 08:50:51 robertc Exp $
 *
 *
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 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
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 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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 */

#ifndef SQUID_MEM_NODE_H
#define SQUID_MEM_NODE_H

#include "StoreIOBuffer.h"
#include "Range.h"

class mem_node
{

public:
    static size_t InUseCount();
    static unsigned long store_mem_size;	/* 0 */

    void operator delete (void *);
    void *operator new (size_t);
    mem_node(off_t);
    ~mem_node();
    size_t space() const;
    size_t start() const;
    size_t end() const;
    Range<size_t> dataRange() const;
    bool contains (size_t const &location) const;
    bool canAccept (size_t const &location) const;
    bool operator < (mem_node const & rhs) const;
    /* public */
    StoreIOBuffer nodeBuffer;
    /* Private */
    char data[SM_PAGE_SIZE];

private:
    static MemPool *pool;
};

inline std::ostream &
operator << (std::ostream &os, mem_node &aNode)
{
    os << aNode.nodeBuffer.range();
    return os;
}

#endif /* SQUID_MEM_NODE_H */