1 | /*
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2 | * Copyright (c) 1995-2000, Index Data.
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3 | *
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4 | * Permission to use, copy, modify, distribute, and sell this software and
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5 | * its documentation, in whole or in part, for any purpose, is hereby granted,
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6 | * provided that:
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7 | *
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8 | * 1. This copyright and permission notice appear in all copies of the
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9 | * software and its documentation. Notices of copyright or attribution
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10 | * which appear at the beginning of any file must remain unchanged.
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11 | *
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12 | * 2. The names of Index Data or the individual authors may not be used to
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13 | * endorse or promote products derived from this software without specific
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14 | * prior written permission.
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15 | *
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16 | * THIS SOFTWARE IS PROVIDED "AS IS" AND WITHOUT WARRANTY OF ANY KIND,
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17 | * EXPRESS, IMPLIED, OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY
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18 | * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
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19 | * IN NO EVENT SHALL INDEX DATA BE LIABLE FOR ANY SPECIAL, INCIDENTAL,
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20 | * INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, OR ANY DAMAGES
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21 | * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER OR
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22 | * NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF
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23 | * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
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24 | * OF THIS SOFTWARE.
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25 | *
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26 | * $Log$
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27 | * Revision 1.1 2000/08/03 03:10:39 johnmcp
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28 | * Added the YAZ toolkit source to the packages directory (for z39.50 stuff)
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29 | *
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30 | * Revision 1.2 2000/02/28 11:20:06 adam
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31 | * Using autoconf. New definitions: YAZ_BEGIN_CDECL/YAZ_END_CDECL.
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32 | *
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33 | * Revision 1.1 1999/11/30 13:47:11 adam
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34 | * Improved installation. Moved header files to include/yaz.
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35 | *
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36 | * Revision 1.10 1998/10/19 15:24:20 adam
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37 | * New nmem utility, nmem_transfer, that transfer blocks from one
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38 | * NMEM to another.
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39 | *
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40 | * Revision 1.9 1998/10/13 16:00:17 adam
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41 | * Implemented nmem_critical_{enter,leave}.
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42 | *
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43 | * Revision 1.8 1998/07/20 12:35:59 adam
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44 | * Added more memory diagnostics (when NMEM_DEBUG is 1).
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45 | *
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46 | * Revision 1.7 1997/10/31 12:20:08 adam
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47 | * Improved memory debugging for xmalloc/nmem.c. References to NMEM
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48 | * instead of ODR in n ESPEC-1 handling in source d1_espec.c.
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49 | * Bug fix: missing fclose in data1_read_espec1.
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50 | *
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51 | */
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52 |
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53 | #ifndef NMEM_H
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54 | #define NMEM_H
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55 | #include <yaz/yconfig.h>
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56 |
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57 | #define NMEM_DEBUG 0
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58 |
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59 | #ifndef NMEM_DEBUG
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60 | #define NMEM_DEBUG 0
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61 | #endif
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62 |
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63 | YAZ_BEGIN_CDECL
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64 |
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65 | typedef struct nmem_block
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66 | {
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67 | char *buf; /* memory allocated in this block */
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68 | int size; /* size of buf */
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69 | int top; /* top of buffer */
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70 | struct nmem_block *next;
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71 | } nmem_block;
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72 |
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73 | typedef struct nmem_control
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74 | {
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75 | int total;
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76 | nmem_block *blocks;
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77 | struct nmem_control *next;
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78 | } nmem_control;
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79 |
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80 | typedef struct nmem_control *NMEM;
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81 |
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82 | YAZ_EXPORT void nmem_reset(NMEM n);
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83 | YAZ_EXPORT int nmem_total(NMEM n);
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84 | YAZ_EXPORT char *nmem_strdup (NMEM mem, const char *src);
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85 | YAZ_EXPORT void nmem_transfer (NMEM dst, NMEM src);
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86 |
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87 | YAZ_EXPORT void nmem_critical_enter (void);
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88 | YAZ_EXPORT void nmem_critical_leave (void);
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89 |
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90 | #if NMEM_DEBUG
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91 |
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92 | YAZ_EXPORT NMEM nmem_create_f(const char *file, int line);
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93 | YAZ_EXPORT void nmem_destroy_f(const char *file, int line, NMEM n);
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94 | YAZ_EXPORT void *nmem_malloc_f(const char *file, int line, NMEM n, int size);
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95 | #define nmem_create() nmem_create_f(__FILE__, __LINE__)
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96 | #define nmem_destroy(x) nmem_destroy_f(__FILE__, __LINE__, (x))
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97 | #define nmem_malloc(x, y) nmem_malloc_f(__FILE__, __LINE__, (x), (y))
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98 |
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99 | #else
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100 |
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101 | YAZ_EXPORT NMEM nmem_create(void);
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102 | YAZ_EXPORT void nmem_destroy(NMEM n);
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103 | YAZ_EXPORT void *nmem_malloc(NMEM n, int size);
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104 |
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105 | #endif
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106 |
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107 | YAZ_EXPORT void nmem_init (void);
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108 | YAZ_EXPORT void nmem_exit (void);
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109 |
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110 | YAZ_END_CDECL
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111 |
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112 | #endif
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