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printf %s, cast appropriately.
[perl5.git] / ext / NDBM_File / NDBM_File.xs
1 #define PERL_NO_GET_CONTEXT
2
3 #include "EXTERN.h"
4 #include "perl.h"
5 #include "XSUB.h"
6 #undef NDBM_HEADER_USES_PROTOTYPES
7 #if defined(I_GDBM_NDBM)
8 #  ifdef GDBM_NDBM_H_USES_PROTOTYPES
9 #    define NDBM_HEADER_USES_PROTOTYPES
10 START_EXTERN_C
11 #  endif
12 #  include <gdbm-ndbm.h> /* Debian compatibility version */
13 #elif defined(I_GDBMNDBM)
14 #  ifdef GDBMNDBM_H_USES_PROTOTYPES
15 #    define NDBM_HEADER_USES_PROTOTYPES
16 START_EXTERN_C
17 #  endif
18 #  include <gdbm/ndbm.h> /* RedHat compatibility version */
19 #elif defined(I_NDBM)
20 #  ifdef NDBM_H_USES_PROTOTYPES
21 #    define NDBM_HEADER_USES_PROTOTYPES
22 START_EXTERN_C
23 #  endif
24 #  include <ndbm.h>
25 #endif
26 #ifdef NDBM_HEADER_USES_PROTOTYPES
27 END_EXTERN_C
28 #endif
29
30 #define fetch_key 0
31 #define store_key 1
32 #define fetch_value 2
33 #define store_value 3
34
35 typedef struct {
36         DBM *   dbp ;
37         SV *    filter[4];
38         int     filtering ;
39         } NDBM_File_type;
40
41 typedef NDBM_File_type * NDBM_File ;
42 typedef datum datum_key ;
43 typedef datum datum_value ;
44
45
46 #if defined(__cplusplus) && !defined(NDBM_HEADER_USES_PROTOTYPES)
47 /* gdbm's header file used for compatibility with gdbm */
48 /* isn't compatible to C++ syntax, so we need these */
49 /* declarations to make everyone happy. */
50 EXTERN_C DBM *dbm_open(const char *, int, mode_t);
51 EXTERN_C void dbm_close(DBM *);
52 EXTERN_C datum dbm_fetch(DBM *, datum);
53 EXTERN_C int dbm_store(DBM *, datum, datum, int);
54 EXTERN_C int dbm_delete(DBM *, datum);
55 EXTERN_C datum dbm_firstkey(DBM *);
56 EXTERN_C datum dbm_nextkey(DBM *);
57 #endif
58
59 MODULE = NDBM_File      PACKAGE = NDBM_File     PREFIX = ndbm_
60
61 NDBM_File
62 ndbm_TIEHASH(dbtype, filename, flags, mode)
63         char *          dbtype
64         char *          filename
65         int             flags
66         int             mode
67         CODE:
68         {
69             DBM *       dbp ;
70
71             RETVAL = NULL ;
72             if ((dbp =  dbm_open(filename, flags, mode))) {
73                 RETVAL = (NDBM_File)safecalloc(1, sizeof(NDBM_File_type));
74                 RETVAL->dbp = dbp ;
75             }
76             
77         }
78         OUTPUT:
79           RETVAL
80
81 void
82 ndbm_DESTROY(db)
83         NDBM_File       db
84         PREINIT:
85         int i = store_value;
86         CODE:
87         dbm_close(db->dbp);
88         do {
89             if (db->filter[i])
90                 SvREFCNT_dec(db->filter[i]);
91         } while (i-- > 0);
92         safefree(db);
93
94 #define ndbm_FETCH(db,key)                      dbm_fetch(db->dbp,key)
95 datum_value
96 ndbm_FETCH(db, key)
97         NDBM_File       db
98         datum_key       key
99
100 #define ndbm_STORE(db,key,value,flags)          dbm_store(db->dbp,key,value,flags)
101 int
102 ndbm_STORE(db, key, value, flags = DBM_REPLACE)
103         NDBM_File       db
104         datum_key       key
105         datum_value     value
106         int             flags
107     CLEANUP:
108         if (RETVAL) {
109             if (RETVAL < 0 && errno == EPERM)
110                 croak("No write permission to ndbm file");
111             croak("ndbm store returned %d, errno %d, key \"%s\"",
112                   RETVAL, errno, (const char *)key.dptr);
113             dbm_clearerr(db->dbp);
114         }
115
116 #define ndbm_DELETE(db,key)                     dbm_delete(db->dbp,key)
117 int
118 ndbm_DELETE(db, key)
119         NDBM_File       db
120         datum_key       key
121
122 #define ndbm_FIRSTKEY(db)                       dbm_firstkey(db->dbp)
123 datum_key
124 ndbm_FIRSTKEY(db)
125         NDBM_File       db
126
127 #define ndbm_NEXTKEY(db,key)                    dbm_nextkey(db->dbp)
128 datum_key
129 ndbm_NEXTKEY(db, key)
130         NDBM_File       db
131         datum_key       key = NO_INIT
132
133 #define ndbm_error(db)                          dbm_error(db->dbp)
134 int
135 ndbm_error(db)
136         NDBM_File       db
137
138 #define ndbm_clearerr(db)                       dbm_clearerr(db->dbp)
139 void
140 ndbm_clearerr(db)
141         NDBM_File       db
142
143
144 SV *
145 filter_fetch_key(db, code)
146         NDBM_File       db
147         SV *            code
148         SV *            RETVAL = &PL_sv_undef ;
149         ALIAS:
150         NDBM_File::filter_fetch_key = fetch_key
151         NDBM_File::filter_store_key = store_key
152         NDBM_File::filter_fetch_value = fetch_value
153         NDBM_File::filter_store_value = store_value
154         CODE:
155             DBM_setFilter(db->filter[ix], code);