vchoi_fork

/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *

 * Copyright by The HDF Group.                                               *

 * Copyright by the Board of Trustees of the University of Illinois.         *

 * All rights reserved.                                                      *

 *                                                                           *

 * This file is part of HDF5.  The full HDF5 copyright notice, including     *

 * terms governing use, modification, and redistribution, is contained in    *

 * the COPYING file, which can be found at the root of the source code       *

 * distribution tree, or in https://support.hdfgroup.org/ftp/HDF5/releases.  *

 * If you do not have access to either file, you may request a copy from     *

 * help@hdfgroup.org.                                                        *

 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */

​

/*

 * Reference counted string algorithms.

 *

 * These are used for various internal strings which get copied multiple times.

 *

 */

​

​

#include "H5Eprivate.h"     /* Error handling           */

#include "H5FLprivate.h"    /* Free lists                           */

#include "H5RSprivate.h"        /* Reference-counted strings            */

​

/* Private typedefs & structs */

struct H5RS_str_t {

    char *s;            /* String to be reference counted */

    unsigned wrapped;   /* Indicates that the string to be ref-counted is not copied */

    unsigned n;         /* Reference count of number of pointers sharing string */

};

​

/* Declare a free list to manage the H5RS_str_t struct */

H5FL_DEFINE_STATIC(H5RS_str_t);

​

/* Declare the PQ free list for the wrapped strings */

H5FL_BLK_DEFINE(str_buf);

​

•

/*--------------------------------------------------------------------------

 NAME

    H5RS_xstrdup

 PURPOSE

    Duplicate the string being reference counted

 USAGE

    char *H5RS_xstrdup(s)

        const char *s;          IN: String to duplicate

​

 RETURNS

    Returns a pointer to a new string on success, NULL on failure.

 DESCRIPTION