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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 | # undef free |
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44 | free(str); |
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45 | } |
46 | |
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47 | /* Versions of gdbm prior to 1.7x might not have the gdbm_sync, |
48 | gdbm_exists, and gdbm_setopt functions. Apparently Slackware |
49 | (Linux) 2.1 contains gdbm-1.5 (which dates back to 1991). |
50 | */ |
51 | #ifndef GDBM_FAST |
52 | #define gdbm_exists(db,key) not_here("gdbm_exists") |
53 | #define gdbm_sync(db) (void) not_here("gdbm_sync") |
54 | #define gdbm_setopt(db,optflag,optval,optlen) not_here("gdbm_setopt") |
55 | #endif |
56 | |
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57 | #include "const-c.inc" |
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58 | |
59 | MODULE = GDBM_File PACKAGE = GDBM_File PREFIX = gdbm_ |
60 | |
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61 | INCLUDE: const-xs.inc |
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62 | |
63 | GDBM_File |
64 | gdbm_TIEHASH(dbtype, name, read_write, mode, fatal_func = (FATALFUNC)croak) |
65 | char * dbtype |
66 | char * name |
67 | int read_write |
68 | int mode |
69 | FATALFUNC fatal_func |
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70 | CODE: |
71 | { |
72 | GDBM_FILE dbp ; |
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73 | |
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74 | RETVAL = NULL ; |
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75 | if ((dbp = gdbm_open(name, GDBM_BLOCKSIZE, read_write, mode, fatal_func))) { |
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76 | RETVAL = (GDBM_File)safemalloc(sizeof(GDBM_File_type)) ; |
77 | Zero(RETVAL, 1, GDBM_File_type) ; |
78 | RETVAL->dbp = dbp ; |
79 | } |
80 | |
81 | } |
82 | OUTPUT: |
83 | RETVAL |
84 | |
85 | |
86 | #define gdbm_close(db) gdbm_close(db->dbp) |
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87 | void |
88 | gdbm_close(db) |
89 | GDBM_File db |
90 | CLEANUP: |
91 | |
92 | void |
93 | gdbm_DESTROY(db) |
94 | GDBM_File db |
95 | CODE: |
96 | gdbm_close(db); |
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97 | safefree(db); |
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98 | |
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99 | #define gdbm_FETCH(db,key) gdbm_fetch(db->dbp,key) |
100 | datum_value |
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101 | gdbm_FETCH(db, key) |
102 | GDBM_File db |
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103 | datum_key_copy key |
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104 | |
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105 | #define gdbm_STORE(db,key,value,flags) gdbm_store(db->dbp,key,value,flags) |
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106 | int |
107 | gdbm_STORE(db, key, value, flags = GDBM_REPLACE) |
108 | GDBM_File db |
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109 | datum_key key |
110 | datum_value value |
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111 | int flags |
112 | CLEANUP: |
113 | if (RETVAL) { |
114 | if (RETVAL < 0 && errno == EPERM) |
115 | croak("No write permission to gdbm file"); |
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116 | croak("gdbm store returned %d, errno %d, key \"%.*s\"", |
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117 | RETVAL,errno,key.dsize,key.dptr); |
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118 | } |
119 | |
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120 | #define gdbm_DELETE(db,key) gdbm_delete(db->dbp,key) |
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121 | int |
122 | gdbm_DELETE(db, key) |
123 | GDBM_File db |
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124 | datum_key key |
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125 | |
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126 | #define gdbm_FIRSTKEY(db) gdbm_firstkey(db->dbp) |
127 | datum_key |
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128 | gdbm_FIRSTKEY(db) |
129 | GDBM_File db |
130 | |
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131 | #define gdbm_NEXTKEY(db,key) gdbm_nextkey(db->dbp,key) |
132 | datum_key |
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133 | gdbm_NEXTKEY(db, key) |
134 | GDBM_File db |
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135 | datum_key key |
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136 | |
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137 | #define gdbm_reorganize(db) gdbm_reorganize(db->dbp) |
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138 | int |
139 | gdbm_reorganize(db) |
140 | GDBM_File db |
141 | |
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142 | |
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143 | #define gdbm_sync(db) gdbm_sync(db->dbp) |
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144 | void |
145 | gdbm_sync(db) |
146 | GDBM_File db |
147 | |
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148 | #define gdbm_EXISTS(db,key) gdbm_exists(db->dbp,key) |
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149 | int |
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150 | gdbm_EXISTS(db, key) |
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151 | GDBM_File db |
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152 | datum_key key |
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153 | |
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154 | #define gdbm_setopt(db,optflag, optval, optlen) gdbm_setopt(db->dbp,optflag, optval, optlen) |
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155 | int |
156 | gdbm_setopt (db, optflag, optval, optlen) |
157 | GDBM_File db |
158 | int optflag |
159 | int &optval |
160 | int optlen |
161 | |
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162 | |
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163 | SV * |
164 | filter_fetch_key(db, code) |
165 | GDBM_File db |
166 | SV * code |
167 | SV * RETVAL = &PL_sv_undef ; |
168 | CODE: |
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169 | DBM_setFilter(db->filter_fetch_key, code) ; |
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170 | |
171 | SV * |
172 | filter_store_key(db, code) |
173 | GDBM_File db |
174 | SV * code |
175 | SV * RETVAL = &PL_sv_undef ; |
176 | CODE: |
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177 | DBM_setFilter(db->filter_store_key, code) ; |
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178 | |
179 | SV * |
180 | filter_fetch_value(db, code) |
181 | GDBM_File db |
182 | SV * code |
183 | SV * RETVAL = &PL_sv_undef ; |
184 | CODE: |
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185 | DBM_setFilter(db->filter_fetch_value, code) ; |
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186 | |
187 | SV * |
188 | filter_store_value(db, code) |
189 | GDBM_File db |
190 | SV * code |
191 | SV * RETVAL = &PL_sv_undef ; |
192 | CODE: |
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193 | DBM_setFilter(db->filter_store_value, code) ; |
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194 | |