6 /* If using the DB3 emulation, ENTER is defined both
7 * by DB3 and Perl. We drop the Perl definition now.
8 * See also INSTALL section on DB3.
9 * -- Stanislav Brabec <utx@penguin.cz> */
14 # include <rpcsvc/dbm.h>
18 #ifdef DBM_BUG_DUPLICATE_FREE
20 * DBM on at least Ultrix and HPUX call dbmclose() from dbminit(),
21 * resulting in duplicate free() because dbmclose() does *not*
22 * check if it has already been called for this DBM.
23 * If some malloc/free calls have been done between dbmclose() and
24 * the next dbminit(), the memory might be used for something else when
26 * Verified to work on ultrix4.3. Probably will work on HP/UX.
27 * Set DBM_BUG_DUPLICATE_FREE in the extension hint file.
29 /* Close the previous dbm, and fail to open a new dbm */
30 #define dbmclose() ((void) dbminit("/tmp/x/y/z/z/y"))
37 SV * filter_fetch_key ;
38 SV * filter_store_key ;
39 SV * filter_fetch_value ;
40 SV * filter_store_value ;
44 typedef ODBM_File_type * ODBM_File ;
45 typedef datum datum_key ;
46 typedef datum datum_value ;
48 #define ckFilter(arg,type,name) \
51 /* printf("filtering %s\n", name) ;*/ \
53 croak("recursion detected in %s", name) ; \
54 db->filtering = TRUE ; \
55 save_defsv = newSVsv(DEFSV) ; \
56 sv_setsv(DEFSV, arg) ; \
58 (void) perl_call_sv(db->type, G_DISCARD|G_NOARGS); \
59 sv_setsv(arg, DEFSV) ; \
60 sv_setsv(DEFSV, save_defsv) ; \
61 SvREFCNT_dec(save_defsv) ; \
62 db->filtering = FALSE ; \
63 /*printf("end of filtering %s\n", name) ;*/ \
67 #define odbm_FETCH(db,key) fetch(key)
68 #define odbm_STORE(db,key,value,flags) store(key,value)
69 #define odbm_DELETE(db,key) delete(key)
70 #define odbm_FIRSTKEY(db) firstkey()
71 #define odbm_NEXTKEY(db,key) nextkey(key)
79 MODULE = ODBM_File PACKAGE = ODBM_File PREFIX = odbm_
82 odbm_TIEHASH(dbtype, filename, flags, mode)
92 croak("Old dbm can only open one database");
93 New(0, tmpbuf, strlen(filename) + 5, char);
95 sprintf(tmpbuf,"%s.dir",filename);
96 if (stat(tmpbuf, &PL_statbuf) < 0) {
97 if (flags & O_CREAT) {
98 if (mode < 0 || close(creat(tmpbuf,mode)) < 0)
99 croak("ODBM_File: Can't create %s", filename);
100 sprintf(tmpbuf,"%s.pag",filename);
101 if (close(creat(tmpbuf,mode)) < 0)
102 croak("ODBM_File: Can't create %s", filename);
105 croak("ODBM_FILE: Can't open %s", filename);
107 dbp = (void*)(dbminit(filename) >= 0 ? &dbmrefcnt : 0);
108 RETVAL = (ODBM_File)safemalloc(sizeof(ODBM_File_type)) ;
109 Zero(RETVAL, 1, ODBM_File_type) ;
111 ST(0) = sv_mortalcopy(&PL_sv_undef);
112 sv_setptrobj(ST(0), RETVAL, dbtype);
129 odbm_STORE(db, key, value, flags = DBM_REPLACE)
136 if (RETVAL < 0 && errno == EPERM)
137 croak("No write permission to odbm file");
138 croak("odbm store returned %d, errno %d, key \"%s\"",
139 RETVAL,errno,key.dptr);
152 odbm_NEXTKEY(db, key)
157 #define setFilter(type) \
160 RETVAL = sv_mortalcopy(db->type) ; \
162 if (db->type && (code == &PL_sv_undef)) { \
163 SvREFCNT_dec(db->type) ; \
164 db->type = Nullsv ; \
168 sv_setsv(db->type, code) ; \
170 db->type = newSVsv(code) ; \
177 filter_fetch_key(db, code)
180 SV * RETVAL = &PL_sv_undef ;
182 setFilter(filter_fetch_key) ;
185 filter_store_key(db, code)
188 SV * RETVAL = &PL_sv_undef ;
190 setFilter(filter_store_key) ;
193 filter_fetch_value(db, code)
196 SV * RETVAL = &PL_sv_undef ;
198 setFilter(filter_fetch_value) ;
201 filter_store_value(db, code)
204 SV * RETVAL = &PL_sv_undef ;
206 setFilter(filter_store_value) ;