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1 | #include "EXTERN.h" |
2 | #include "perl.h" |
3 | #include "XSUB.h" |
4 | |
5 | #include <gdbm.h> |
6 | #include <fcntl.h> |
7 | |
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8 | typedef struct { |
9 | GDBM_FILE dbp ; |
10 | SV * filter_fetch_key ; |
11 | SV * filter_store_key ; |
12 | SV * filter_fetch_value ; |
13 | SV * filter_store_value ; |
14 | int filtering ; |
15 | } GDBM_File_type; |
16 | |
17 | typedef GDBM_File_type * GDBM_File ; |
18 | typedef datum datum_key ; |
19 | typedef datum datum_value ; |
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20 | typedef datum datum_key_copy; |
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21 | |
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22 | #define GDBM_BLOCKSIZE 0 /* gdbm defaults to stat blocksize */ |
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23 | |
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24 | typedef void (*FATALFUNC)(); |
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25 | |
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26 | #ifndef GDBM_FAST |
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27 | static int |
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28 | not_here(char *s) |
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29 | { |
30 | croak("GDBM_File::%s not implemented on this architecture", s); |
31 | return -1; |
32 | } |
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33 | #endif |
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34 | |
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35 | /* GDBM allocates the datum with system malloc() and expects the user |
36 | * to free() it. So we either have to free() it immediately, or have |
37 | * perl free() it when it deallocates the SV, depending on whether |
38 | * perl uses malloc()/free() or not. */ |
39 | static void |
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40 | output_datum(pTHX_ SV *arg, char *str, int size) |
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41 | { |
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42 | sv_setpvn(arg, str, size); |
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43 | free(str); |
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44 | } |
45 | |
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46 | /* Versions of gdbm prior to 1.7x might not have the gdbm_sync, |
47 | gdbm_exists, and gdbm_setopt functions. Apparently Slackware |
48 | (Linux) 2.1 contains gdbm-1.5 (which dates back to 1991). |
49 | */ |
50 | #ifndef GDBM_FAST |
51 | #define gdbm_exists(db,key) not_here("gdbm_exists") |
52 | #define gdbm_sync(db) (void) not_here("gdbm_sync") |
53 | #define gdbm_setopt(db,optflag,optval,optlen) not_here("gdbm_setopt") |
54 | #endif |
55 | |
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56 | #include "const-c.inc" |
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57 | |
58 | MODULE = GDBM_File PACKAGE = GDBM_File PREFIX = gdbm_ |
59 | |
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60 | INCLUDE: const-xs.inc |
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61 | |
62 | GDBM_File |
63 | gdbm_TIEHASH(dbtype, name, read_write, mode, fatal_func = (FATALFUNC)croak) |
64 | char * dbtype |
65 | char * name |
66 | int read_write |
67 | int mode |
68 | FATALFUNC fatal_func |
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69 | CODE: |
70 | { |
71 | GDBM_FILE dbp ; |
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72 | |
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73 | RETVAL = NULL ; |
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74 | if ((dbp = gdbm_open(name, GDBM_BLOCKSIZE, read_write, mode, fatal_func))) { |
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75 | RETVAL = (GDBM_File)safemalloc(sizeof(GDBM_File_type)) ; |
76 | Zero(RETVAL, 1, GDBM_File_type) ; |
77 | RETVAL->dbp = dbp ; |
78 | } |
79 | |
80 | } |
81 | OUTPUT: |
82 | RETVAL |
83 | |
84 | |
85 | #define gdbm_close(db) gdbm_close(db->dbp) |
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86 | void |
87 | gdbm_close(db) |
88 | GDBM_File db |
89 | CLEANUP: |
90 | |
91 | void |
92 | gdbm_DESTROY(db) |
93 | GDBM_File db |
94 | CODE: |
95 | gdbm_close(db); |
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96 | safefree(db); |
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97 | |
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98 | #define gdbm_FETCH(db,key) gdbm_fetch(db->dbp,key) |
99 | datum_value |
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100 | gdbm_FETCH(db, key) |
101 | GDBM_File db |
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102 | datum_key_copy key |
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103 | |
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104 | #define gdbm_STORE(db,key,value,flags) gdbm_store(db->dbp,key,value,flags) |
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105 | int |
106 | gdbm_STORE(db, key, value, flags = GDBM_REPLACE) |
107 | GDBM_File db |
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108 | datum_key key |
109 | datum_value value |
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110 | int flags |
111 | CLEANUP: |
112 | if (RETVAL) { |
113 | if (RETVAL < 0 && errno == EPERM) |
114 | croak("No write permission to gdbm file"); |
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115 | croak("gdbm store returned %d, errno %d, key \"%.*s\"", |
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116 | RETVAL,errno,key.dsize,key.dptr); |
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117 | } |
118 | |
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119 | #define gdbm_DELETE(db,key) gdbm_delete(db->dbp,key) |
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120 | int |
121 | gdbm_DELETE(db, key) |
122 | GDBM_File db |
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123 | datum_key key |
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124 | |
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125 | #define gdbm_FIRSTKEY(db) gdbm_firstkey(db->dbp) |
126 | datum_key |
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127 | gdbm_FIRSTKEY(db) |
128 | GDBM_File db |
129 | |
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130 | #define gdbm_NEXTKEY(db,key) gdbm_nextkey(db->dbp,key) |
131 | datum_key |
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132 | gdbm_NEXTKEY(db, key) |
133 | GDBM_File db |
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134 | datum_key key |
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135 | |
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136 | #define gdbm_reorganize(db) gdbm_reorganize(db->dbp) |
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137 | int |
138 | gdbm_reorganize(db) |
139 | GDBM_File db |
140 | |
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141 | |
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142 | #define gdbm_sync(db) gdbm_sync(db->dbp) |
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143 | void |
144 | gdbm_sync(db) |
145 | GDBM_File db |
146 | |
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147 | #define gdbm_EXISTS(db,key) gdbm_exists(db->dbp,key) |
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148 | int |
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149 | gdbm_EXISTS(db, key) |
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150 | GDBM_File db |
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151 | datum_key key |
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152 | |
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153 | #define gdbm_setopt(db,optflag, optval, optlen) gdbm_setopt(db->dbp,optflag, optval, optlen) |
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154 | int |
155 | gdbm_setopt (db, optflag, optval, optlen) |
156 | GDBM_File db |
157 | int optflag |
158 | int &optval |
159 | int optlen |
160 | |
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161 | |
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162 | SV * |
163 | filter_fetch_key(db, code) |
164 | GDBM_File db |
165 | SV * code |
166 | SV * RETVAL = &PL_sv_undef ; |
167 | CODE: |
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168 | DBM_setFilter(db->filter_fetch_key, code) ; |
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169 | |
170 | SV * |
171 | filter_store_key(db, code) |
172 | GDBM_File db |
173 | SV * code |
174 | SV * RETVAL = &PL_sv_undef ; |
175 | CODE: |
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176 | DBM_setFilter(db->filter_store_key, code) ; |
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177 | |
178 | SV * |
179 | filter_fetch_value(db, code) |
180 | GDBM_File db |
181 | SV * code |
182 | SV * RETVAL = &PL_sv_undef ; |
183 | CODE: |
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184 | DBM_setFilter(db->filter_fetch_value, code) ; |
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185 | |
186 | SV * |
187 | filter_store_value(db, code) |
188 | GDBM_File db |
189 | SV * code |
190 | SV * RETVAL = &PL_sv_undef ; |
191 | CODE: |
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192 | DBM_setFilter(db->filter_store_value, code) ; |
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193 | |