1 | /**********************************************************************
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2 | *
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3 | * gsdlconf.h -- system specific includes
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4 | * Copyright (C) 1999 The New Zealand Digital Library Project
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5 | *
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6 | * A component of the Greenstone digital library software
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7 | * from the New Zealand Digital Library Project at the
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8 | * University of Waikato, New Zealand.
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9 | *
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10 | * This program is free software; you can redistribute it and/or modify
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11 | * it under the terms of the GNU General Public License as published by
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12 | * the Free Software Foundation; either version 2 of the License, or
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13 | * (at your option) any later version.
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14 | *
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15 | * This program is distributed in the hope that it will be useful,
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16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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18 | * GNU General Public License for more details.
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19 | *
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20 | * You should have received a copy of the GNU General Public License
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21 | * along with this program; if not, write to the Free Software
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22 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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23 | *
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24 | * $Id: gsdlconf.h 996 2000-02-29 21:52:31Z sjboddie $
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25 | *
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26 | *********************************************************************/
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27 |
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28 |
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29 | #ifndef GSDLCONF_H
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30 | #define GSDLCONF_H
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31 |
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32 | #ifndef __WIN32__
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33 | #include "../config.h"
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34 | #endif
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35 |
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36 | // Note: all macros used in the gsdl software (except the _H macros) should
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37 | // now start with GSDL_
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38 |
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39 | // GSDL_NEED_STRINGS_H should be defined if some string functions
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40 | // needed (like strcasecmp) are in strings.h
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41 | #if defined(__IBMCPP__)
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42 | # define GSDL_NEED_STRINGS_H
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43 | #endif
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44 |
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45 | // GSDL_USE_IOS_H should be defined if the .h extension needs to
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46 | // be used for the io stream headers
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47 | #if defined(__GNUG__) || defined(__IBMCPP__)
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48 | # define GSDL_USE_IOS_H 1
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49 | #endif
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50 |
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51 | // GSDL_USE_STL_H should be defined if the .h extension needs to
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52 | // be used for the stl header files
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53 | #if defined(__IBMCPP__)
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54 | # define GSDL_USE_STL_H 1
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55 | #endif
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56 |
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57 | // GSDL_USE_ALGO_H should be defined if algo.h should be used
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58 | // instead of algorithm.h
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59 | #if defined(__IBMCPP__)
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60 | # define GSDL_USE_ALGO_H 1
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61 | #endif
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62 |
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63 | // GSDL_NAMESPACE_BROKEN should be defined if namespaces should
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64 | // not be used
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65 | #if defined(__GNUG__) || defined(__IBMCPP__)
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66 | # define GSDL_NAMESPACE_BROKEN 1
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67 | #endif
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68 |
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69 | // GSDL_USE_OBJECTSPACE should now be used instead of USE_OBJECTSPACE
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70 | #if defined(USE_OBJECTSPACE)
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71 | # define GSDL_USE_OBJECTSPACE
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72 | #endif
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73 |
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74 | // GSDL_NEED_DESTROY_USHORT should be defined if the compiler needs
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75 | // a definition for void destroy(short unsigned int *)
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76 | #if defined(__IBMCPP__)
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77 | # define GSDL_NEED_DESTROY_USHORT
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78 | #endif
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79 |
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80 |
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81 | // file locking
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82 |
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83 | #if defined(__WIN32__)
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84 | #include <io.h>
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85 | #include <sys/locking.h>
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86 | #define GSDL_GET_FILEDESC(str) str.fd()
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87 | #define GSDL_UNLOCK_FILE(fd) _locking(fd, LK_UNLCK, 200)
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88 | #define GSDL_LOCK_FILE(fd) lock_val = _locking(fd, LK_NBLCK, 200)
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89 |
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90 | #else
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91 | #define GSDL_GET_FILEDESC(str) str.filedesc()
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92 |
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93 | #if GSDL_USE_FLOCK
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94 | #include <sys/lock.h>
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95 |
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96 | #ifndef LOCK_SH
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97 | #define LOCK_SH 1
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98 | #endif
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99 |
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100 | #ifndef LOCK_EX
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101 | #define LOCK_EX 2
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102 | #endif
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103 |
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104 | #ifndef LOCK_NB
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105 | #define LOCK_NB 4
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106 | #endif
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107 |
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108 | #ifndef LOCK_UN
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109 | #define LOCK_UN 8
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110 | #endif
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111 |
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112 | #define GSDL_UNLOCK_FILE(fd) flock (fd, LOCK_UN)
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113 | #define GSDL_LOCK_FILE(fd) lock_val = flock (fd, LOCK_EX + LOCK_NB)
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114 |
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115 | #else
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116 | // use fcntl
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117 | #include <fcntl.h>
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118 | #define GSDL_UNLOCK_FILE(fd) \
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119 | { \
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120 | struct flock flock; \
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121 | flock.l_type = F_UNLCK; \
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122 | flock.l_whence = SEEK_SET; \
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123 | flock.l_start = flock.l_len = 0L; \
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124 | fcntl (fd, F_SETLK, &flock); \
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125 | }
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126 | #define GSDL_LOCK_FILE(fd) \
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127 | { \
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128 | struct flock flock; \
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129 | flock.l_type = F_WRLCK; \
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130 | flock.l_whence = SEEK_SET; \
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131 | flock.l_start = flock.l_len = 0L; \
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132 | lock_val = fcntl (fd, F_SETLK, &flock); \
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133 | }
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134 |
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135 | #endif
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136 | #endif
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137 |
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138 | #endif
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