1 /* This file is part of the YAZ toolkit.
2 * Copyright (C) 1995-2008 Index Data.
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are met:
7 * * Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * * Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 * * Neither the name of Index Data nor the names of its contributors
13 * may be used to endorse or promote products derived from this
14 * software without specific prior written permission.
16 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND ANY
17 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
18 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
19 * DISCLAIMED. IN NO EVENT SHALL THE REGENTS AND CONTRIBUTORS BE LIABLE FOR ANY
20 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
21 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
22 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
23 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 * \brief Header for Nibble Memory functions
32 * This is a simple and fairly wasteful little module for nibble memory
33 * allocation. Eventually we'll put in something better.
39 #include <yaz/yconfig.h>
43 /** \brief NMEM handle (an opaque pointer to memory) */
44 typedef struct nmem_control *NMEM;
46 /** \brief releases memory associaged with an NMEM handle
49 YAZ_EXPORT void nmem_reset(NMEM n);
51 /** \brief returns size in bytes of memory for NMEM handle
52 \returns number of bytes
54 YAZ_EXPORT int nmem_total(NMEM n);
56 /** \brief allocates string on NMEM handle (similar strdup)
57 \param mem HNEM handle
59 \returns duplicated string
61 YAZ_EXPORT char *nmem_strdup(NMEM mem, const char *src);
62 /** \brief allocates string on NMEM handle - allows NULL ptr buffer
63 \param mem HNEM handle
65 \returns duplicated string or NULL if src was NULL
67 YAZ_EXPORT char *nmem_strdup_null(NMEM mem, const char *src);
69 /** \brief allocates string of certain size on NMEM handle
70 \param mem NMEM handle
72 \param n size of string
73 \returns duplicated string (0 terminated)
75 YAZ_EXPORT char *nmem_strdupn(NMEM mem, const char *src, size_t n);
77 /** \brief allocates sub strings out of string using certain delimitors
78 \param nmem NMEM handle
79 \param delim delimitor chars (splits on each char in there)
80 \param dstr string to be split
81 \param darray result string array for each sub string
82 \param num number of result strings
84 YAZ_EXPORT void nmem_strsplit(NMEM nmem, const char *delim,
86 char ***darray, int *num);
88 /** \brief splits string into sub strings delimited by blanks
89 \param nmem NMEM handle
90 \param dstr string to be split
91 \param darray result string array for each sub string
92 \param num number of result strings
94 YAZ_EXPORT void nmem_strsplit_blank(NMEM nmem, const char *dstr,
95 char ***darray, int *num);
97 /** \brief allocates integer for NMEM
98 \param nmem NMEM handle
99 \param v integer value
100 \returns pointer to created integer
102 YAZ_EXPORT int *nmem_intdup(NMEM nmem, int v);
104 /** \brief transfers memory from one NMEM handle to another
105 \param src source NMEM handle
106 \param dst destination NMEM handle
108 YAZ_EXPORT void nmem_transfer(NMEM dst, NMEM src);
110 /** \brief returns new NMEM handle
113 YAZ_EXPORT NMEM nmem_create(void);
115 /** \brief destroys NMEM handle and memory associated with it
118 YAZ_EXPORT void nmem_destroy(NMEM n);
120 /** \brief allocates memory block on NMEM handle
122 \param size number of bytes to be allocated
123 \returns pointer to allocated memory
125 YAZ_EXPORT void *nmem_malloc(NMEM n, int size);
127 YAZ_EXPORT int yaz_errno(void);
128 YAZ_EXPORT void yaz_set_errno (int v);
129 YAZ_EXPORT void yaz_strerror(char *buf, int max);
137 * indent-tabs-mode: nil
139 * vim: shiftwidth=4 tabstop=8 expandtab