Commit | Line | Data |
---|---|---|
463ee0b2 LW |
1 | #include "EXTERN.h" |
2 | #include "perl.h" | |
3 | #include "XSUB.h" | |
4 | ||
8e07c86e AD |
5 | #ifdef I_DBM |
6 | # include <dbm.h> | |
7 | #else | |
8 | # ifdef I_RPCSVC_DBM | |
9 | # include <rpcsvc/dbm.h> | |
10 | # endif | |
11 | #endif | |
463ee0b2 | 12 | |
2ef53570 JH |
13 | #ifndef HAS_DBMINIT_PROTO |
14 | int dbminit(char* filename); | |
15 | int dbmclose(void); | |
16 | datum fetch(datum key); | |
17 | int store(datum key, datum dat); | |
18 | int delete(datum key); | |
19 | datum firstkey(void); | |
20 | datum nextkey(datum key); | |
21 | #endif | |
22 | ||
1639c7b3 | 23 | #ifdef DBM_BUG_DUPLICATE_FREE |
24 | /* | |
25 | * DBM on at least Ultrix and HPUX call dbmclose() from dbminit(), | |
26 | * resulting in duplicate free() because dbmclose() does *not* | |
27 | * check if it has already been called for this DBM. | |
28 | * If some malloc/free calls have been done between dbmclose() and | |
29 | * the next dbminit(), the memory might be used for something else when | |
30 | * it is freed. | |
31 | * Verified to work on ultrix4.3. Probably will work on HP/UX. | |
32 | * Set DBM_BUG_DUPLICATE_FREE in the extension hint file. | |
33 | */ | |
34 | /* Close the previous dbm, and fail to open a new dbm */ | |
11af7da0 | 35 | #define dbmclose() ((void) dbminit("/non/exist/ent")) |
1639c7b3 | 36 | #endif |
37 | ||
463ee0b2 LW |
38 | #include <fcntl.h> |
39 | ||
9fe6733a PM |
40 | typedef struct { |
41 | void * dbp ; | |
42 | SV * filter_fetch_key ; | |
43 | SV * filter_store_key ; | |
44 | SV * filter_fetch_value ; | |
45 | SV * filter_store_value ; | |
46 | int filtering ; | |
47 | } ODBM_File_type; | |
48 | ||
49 | typedef ODBM_File_type * ODBM_File ; | |
50 | typedef datum datum_key ; | |
0bf2e707 | 51 | typedef datum datum_key_copy ; |
9fe6733a PM |
52 | typedef datum datum_value ; |
53 | ||
a0d0e21e LW |
54 | #define odbm_FETCH(db,key) fetch(key) |
55 | #define odbm_STORE(db,key,value,flags) store(key,value) | |
56 | #define odbm_DELETE(db,key) delete(key) | |
57 | #define odbm_FIRSTKEY(db) firstkey() | |
58 | #define odbm_NEXTKEY(db,key) nextkey(key) | |
463ee0b2 | 59 | |
df3728a2 JH |
60 | #define MY_CXT_KEY "ODBM_File::_guts" XS_VERSION |
61 | ||
62 | typedef struct { | |
63 | int x_dbmrefcnt; | |
64 | } my_cxt_t; | |
65 | ||
66 | START_MY_CXT | |
67 | ||
68 | #define dbmrefcnt (MY_CXT.x_dbmrefcnt) | |
463ee0b2 | 69 | |
85e6fe83 | 70 | #ifndef DBM_REPLACE |
463ee0b2 | 71 | #define DBM_REPLACE 0 |
85e6fe83 | 72 | #endif |
463ee0b2 LW |
73 | |
74 | MODULE = ODBM_File PACKAGE = ODBM_File PREFIX = odbm_ | |
75 | ||
df3728a2 JH |
76 | BOOT: |
77 | { | |
78 | MY_CXT_INIT; | |
79 | } | |
80 | ||
463ee0b2 | 81 | ODBM_File |
a0d0e21e | 82 | odbm_TIEHASH(dbtype, filename, flags, mode) |
463ee0b2 LW |
83 | char * dbtype |
84 | char * filename | |
85 | int flags | |
86 | int mode | |
87 | CODE: | |
88 | { | |
46fc3d4c | 89 | char *tmpbuf; |
9fe6733a | 90 | void * dbp ; |
df3728a2 JH |
91 | dMY_CXT; |
92 | ||
463ee0b2 LW |
93 | if (dbmrefcnt++) |
94 | croak("Old dbm can only open one database"); | |
cd7a8267 | 95 | Newx(tmpbuf, strlen(filename) + 5, char); |
46fc3d4c | 96 | SAVEFREEPV(tmpbuf); |
463ee0b2 | 97 | sprintf(tmpbuf,"%s.dir",filename); |
3280af22 | 98 | if (stat(tmpbuf, &PL_statbuf) < 0) { |
463ee0b2 LW |
99 | if (flags & O_CREAT) { |
100 | if (mode < 0 || close(creat(tmpbuf,mode)) < 0) | |
101 | croak("ODBM_File: Can't create %s", filename); | |
102 | sprintf(tmpbuf,"%s.pag",filename); | |
103 | if (close(creat(tmpbuf,mode)) < 0) | |
104 | croak("ODBM_File: Can't create %s", filename); | |
105 | } | |
106 | else | |
107 | croak("ODBM_FILE: Can't open %s", filename); | |
108 | } | |
9fe6733a PM |
109 | dbp = (void*)(dbminit(filename) >= 0 ? &dbmrefcnt : 0); |
110 | RETVAL = (ODBM_File)safemalloc(sizeof(ODBM_File_type)) ; | |
111 | Zero(RETVAL, 1, ODBM_File_type) ; | |
112 | RETVAL->dbp = dbp ; | |
6b88bc9c | 113 | ST(0) = sv_mortalcopy(&PL_sv_undef); |
56431972 | 114 | sv_setptrobj(ST(0), RETVAL, dbtype); |
463ee0b2 LW |
115 | } |
116 | ||
117 | void | |
118 | DESTROY(db) | |
119 | ODBM_File db | |
df3728a2 JH |
120 | PREINIT: |
121 | dMY_CXT; | |
463ee0b2 LW |
122 | CODE: |
123 | dbmrefcnt--; | |
124 | dbmclose(); | |
eb99164f | 125 | safefree(db); |
463ee0b2 | 126 | |
1b882d32 | 127 | datum_value |
a0d0e21e | 128 | odbm_FETCH(db, key) |
463ee0b2 | 129 | ODBM_File db |
0bf2e707 | 130 | datum_key_copy key |
463ee0b2 LW |
131 | |
132 | int | |
a0d0e21e | 133 | odbm_STORE(db, key, value, flags = DBM_REPLACE) |
463ee0b2 | 134 | ODBM_File db |
9fe6733a PM |
135 | datum_key key |
136 | datum_value value | |
463ee0b2 | 137 | int flags |
a0d0e21e LW |
138 | CLEANUP: |
139 | if (RETVAL) { | |
140 | if (RETVAL < 0 && errno == EPERM) | |
141 | croak("No write permission to odbm file"); | |
748a9306 | 142 | croak("odbm store returned %d, errno %d, key \"%s\"", |
a0d0e21e LW |
143 | RETVAL,errno,key.dptr); |
144 | } | |
463ee0b2 LW |
145 | |
146 | int | |
a0d0e21e | 147 | odbm_DELETE(db, key) |
463ee0b2 | 148 | ODBM_File db |
9fe6733a | 149 | datum_key key |
463ee0b2 | 150 | |
9fe6733a | 151 | datum_key |
a0d0e21e | 152 | odbm_FIRSTKEY(db) |
463ee0b2 LW |
153 | ODBM_File db |
154 | ||
9fe6733a | 155 | datum_key |
a0d0e21e | 156 | odbm_NEXTKEY(db, key) |
463ee0b2 | 157 | ODBM_File db |
9fe6733a PM |
158 | datum_key key |
159 | ||
160 | ||
161 | #define setFilter(type) \ | |
162 | { \ | |
163 | if (db->type) \ | |
cad2e5aa JH |
164 | RETVAL = sv_mortalcopy(db->type) ; \ |
165 | ST(0) = RETVAL ; \ | |
9fe6733a PM |
166 | if (db->type && (code == &PL_sv_undef)) { \ |
167 | SvREFCNT_dec(db->type) ; \ | |
1b882d32 | 168 | db->type = Nullsv ; \ |
9fe6733a PM |
169 | } \ |
170 | else if (code) { \ | |
171 | if (db->type) \ | |
172 | sv_setsv(db->type, code) ; \ | |
173 | else \ | |
174 | db->type = newSVsv(code) ; \ | |
175 | } \ | |
176 | } | |
177 | ||
178 | ||
179 | ||
180 | SV * | |
181 | filter_fetch_key(db, code) | |
182 | ODBM_File db | |
183 | SV * code | |
184 | SV * RETVAL = &PL_sv_undef ; | |
185 | CODE: | |
5b7ea690 | 186 | DBM_setFilter(db->filter_fetch_key, code) ; |
9fe6733a PM |
187 | |
188 | SV * | |
189 | filter_store_key(db, code) | |
190 | ODBM_File db | |
191 | SV * code | |
192 | SV * RETVAL = &PL_sv_undef ; | |
193 | CODE: | |
5b7ea690 | 194 | DBM_setFilter(db->filter_store_key, code) ; |
9fe6733a PM |
195 | |
196 | SV * | |
197 | filter_fetch_value(db, code) | |
198 | ODBM_File db | |
199 | SV * code | |
200 | SV * RETVAL = &PL_sv_undef ; | |
201 | CODE: | |
5b7ea690 | 202 | DBM_setFilter(db->filter_fetch_value, code) ; |
9fe6733a PM |
203 | |
204 | SV * | |
205 | filter_store_value(db, code) | |
206 | ODBM_File db | |
207 | SV * code | |
208 | SV * RETVAL = &PL_sv_undef ; | |
209 | CODE: | |
5b7ea690 | 210 | DBM_setFilter(db->filter_store_value, code) ; |
463ee0b2 | 211 |