charpool.h

/***************************************************************************
 * charpool.h -- Handles Nmap's "character pool" memory allocation         *
 * system.                                                                 *
 *                                                                         *
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/* $Id$ */

#ifndef CHARPOOL_H
#define CHARPOOL_H

#include <vector>

/* len does not include null terminator */
const char *cp_strndup(const char *src, int len);
const char *cp_strdup(const char *src);
// Returns a pointer to a 1-char string
const char *cp_char2str(char c);

void cp_free(void);

typedef std::vector<char *> BucketList;

class CharPool {
  private:
    BucketList buckets;
    size_t currentbucketsz;
    size_t nexti;
  public:
    CharPool(size_t init_sz=256);
    ~CharPool() { this->clear(); }
    // Free all allocated buckets
    void clear();
    // if len < 0, strlen will be used to determine src length
    const char *dup(const char *src, int len=-1);
};

#endif