9 # include <rpcsvc/dbm.h>
13 #ifndef HAS_DBMINIT_PROTO
14 int dbminit(char* filename);
16 datum fetch(datum key);
17 int store(datum key, datum dat);
18 int delete(datum key);
20 datum nextkey(datum key);
23 #ifdef DBM_BUG_DUPLICATE_FREE
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
31 * Verified to work on ultrix4.3. Probably will work on HP/UX.
32 * Set DBM_BUG_DUPLICATE_FREE in the extension hint file.
34 /* Close the previous dbm, and fail to open a new dbm */
35 #define dbmclose() ((void) dbminit("/tmp/x/y/z/z/y"))
42 SV * filter_fetch_key ;
43 SV * filter_store_key ;
44 SV * filter_fetch_value ;
45 SV * filter_store_value ;
49 typedef ODBM_File_type * ODBM_File ;
50 typedef datum datum_key ;
51 typedef datum datum_key_copy ;
52 typedef datum datum_value ;
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)
60 #define MY_CXT_KEY "ODBM_File::_guts" XS_VERSION
68 #define dbmrefcnt (MY_CXT.x_dbmrefcnt)
74 MODULE = ODBM_File PACKAGE = ODBM_File PREFIX = odbm_
82 odbm_TIEHASH(dbtype, filename, flags, mode)
94 croak("Old dbm can only open one database");
95 New(0, tmpbuf, strlen(filename) + 5, char);
97 sprintf(tmpbuf,"%s.dir",filename);
98 if (stat(tmpbuf, &PL_statbuf) < 0) {
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);
107 croak("ODBM_FILE: Can't open %s", filename);
109 dbp = (void*)(dbminit(filename) >= 0 ? &dbmrefcnt : 0);
110 RETVAL = (ODBM_File)safemalloc(sizeof(ODBM_File_type)) ;
111 Zero(RETVAL, 1, ODBM_File_type) ;
113 ST(0) = sv_mortalcopy(&PL_sv_undef);
114 sv_setptrobj(ST(0), RETVAL, dbtype);
133 odbm_STORE(db, key, value, flags = DBM_REPLACE)
140 if (RETVAL < 0 && errno == EPERM)
141 croak("No write permission to odbm file");
142 croak("odbm store returned %d, errno %d, key \"%s\"",
143 RETVAL,errno,key.dptr);
156 odbm_NEXTKEY(db, key)
161 #define setFilter(type) \
164 RETVAL = sv_mortalcopy(db->type) ; \
166 if (db->type && (code == &PL_sv_undef)) { \
167 SvREFCNT_dec(db->type) ; \
168 db->type = Nullsv ; \
172 sv_setsv(db->type, code) ; \
174 db->type = newSVsv(code) ; \
181 filter_fetch_key(db, code)
184 SV * RETVAL = &PL_sv_undef ;
186 DBM_setFilter(db->filter_fetch_key, code) ;
189 filter_store_key(db, code)
192 SV * RETVAL = &PL_sv_undef ;
194 DBM_setFilter(db->filter_store_key, code) ;
197 filter_fetch_value(db, code)
200 SV * RETVAL = &PL_sv_undef ;
202 DBM_setFilter(db->filter_fetch_value, code) ;
205 filter_store_value(db, code)
208 SV * RETVAL = &PL_sv_undef ;
210 DBM_setFilter(db->filter_store_value, code) ;