DB_File.xs -- Perl 5 interface to Berkeley DB
written by Paul Marquess <Paul.Marquess@btinternet.com>
- last modified 27th April 2000
- version 1.73
+ last modified 30th July 2001
+ version 1.78
All comments/suggestions/problems are welcome
- Copyright (c) 1995-2000 Paul Marquess. All rights reserved.
+ Copyright (c) 1995-2001 Paul Marquess. All rights reserved.
This program is free software; you can redistribute it and/or
modify it under the same terms as Perl itself.
Rewrote push
1.72 - No change to DB_File.xs
1.73 - No change to DB_File.xs
+ 1.74 - A call to open needed parenthesised to stop it clashing
+ with a win32 macro.
+ Added Perl core patches 7703 & 7801.
+ 1.75 - Fixed Perl core patch 7703.
+ Added suppport to allow DB_File to be built with
+ Berkeley DB 3.2 -- btree_compare, btree_prefix and hash_cb
+ needed to be changed.
+ 1.76 - No change to DB_File.xs
+ 1.77 - Tidied up a few types used in calling newSVpvn.
+ 1.78 - Core patch 10335, 10372, 10534, 10549, 11051 included.
*/
+#define PERL_NO_GET_CONTEXT
#include "EXTERN.h"
#include "perl.h"
#include "XSUB.h"
# define DEFSV GvSV(defgv)
#endif
+/* Mention DB_VERSION_MAJOR_CFG, DB_VERSION_MINOR_CFG, and
+ DB_VERSION_PATCH_CFG here so that Configure pulls them all in. */
+
/* Being the Berkeley DB we prefer the <sys/cdefs.h> (which will be
* shortly #included by the <db.h>) __attribute__ to the possibly
* already defined __attribute__, for example by GNUC or by Perl. */
-#undef __attribute__
+/* #if DB_VERSION_MAJOR_CFG < 2 */
+#ifndef DB_VERSION_MAJOR
+# undef __attribute__
+#endif
+
+
/* If Perl has been compiled with Threads support,the symbol op will
be defined here. This clashes with a field name in db.h, so get rid of it.
# include <db.h>
#endif
+/* Wall starts with 5.7.x */
+
+#if PERL_REVISION > 5 || (PERL_REVISION == 5 && PERL_VERSION >= 7)
+
+/* Since we dropped the gccish definition of __attribute__ we will want
+ * to redefine dNOOP, however (so that dTHX continues to work). Yes,
+ * all this means that we can't do attribute checking on the DB_File,
+ * boo, hiss. */
+# ifndef DB_VERSION_MAJOR
+
+# undef dNOOP
+# define dNOOP extern int Perl___notused
+
+ /* Ditto for dXSARGS. */
+# undef dXSARGS
+# define dXSARGS \
+ dSP; dMARK; \
+ I32 ax = mark - PL_stack_base + 1; \
+ I32 items = sp - mark
+
+# endif
+
+/* avoid -Wall; DB_File xsubs never make use of `ix' setup for ALIASes */
+# undef dXSI32
+# define dXSI32 dNOOP
+
+#endif /* Perl >= 5.7 */
+
#ifndef pTHX
# define pTHX
# define pTHX_
# define BERKELEY_DB_1_OR_2
#endif
+#if DB_VERSION_MAJOR > 3 || (DB_VERSION_MAJOR == 3 && DB_VERSION_MINOR >= 2)
+# define AT_LEAST_DB_3_2
+#endif
+
/* map version 2 features & constants onto their version 1 equivalent */
#ifdef DB_Prefix_t
#else /* db version 1.x */
+#define BERKELEY_DB_1
#define BERKELEY_DB_1_OR_2
typedef union INFO {
}
+#ifdef CAN_PROTOTYPE
+extern void __getBerkeleyDBInfo(void);
+#endif
+
/* Internal Global Data */
static recno_t Value ;
static recno_t zero = 0 ;
static int
+#ifdef AT_LEAST_DB_3_2
+
+#ifdef CAN_PROTOTYPE
+btree_compare(DB * db, const DBT *key1, const DBT *key2)
+#else
+btree_compare(db, key1, key2)
+DB * db ;
+const DBT * key1 ;
+const DBT * key2 ;
+#endif /* CAN_PROTOTYPE */
+
+#else /* Berkeley DB < 3.2 */
+
#ifdef CAN_PROTOTYPE
btree_compare(const DBT *key1, const DBT *key2)
#else
const DBT * key1 ;
const DBT * key2 ;
#endif
+
+#endif
+
{
#ifdef dTHX
dTHX;
#endif
dSP ;
- void * data1, * data2 ;
+ char * data1, * data2 ;
int retval ;
int count ;
- data1 = key1->data ;
- data2 = key2->data ;
+ data1 = (char *) key1->data ;
+ data2 = (char *) key2->data ;
#ifndef newSVpvn
/* As newSVpv will assume that the data pointer is a null terminated C
}
static DB_Prefix_t
+#ifdef AT_LEAST_DB_3_2
+
+#ifdef CAN_PROTOTYPE
+btree_prefix(DB * db, const DBT *key1, const DBT *key2)
+#else
+btree_prefix(db, key1, key2)
+Db * db ;
+const DBT * key1 ;
+const DBT * key2 ;
+#endif
+
+#else /* Berkeley DB < 3.2 */
+
#ifdef CAN_PROTOTYPE
btree_prefix(const DBT *key1, const DBT *key2)
#else
const DBT * key1 ;
const DBT * key2 ;
#endif
+
+#endif
{
#ifdef dTHX
dTHX;
#endif
dSP ;
- void * data1, * data2 ;
+ char * data1, * data2 ;
int retval ;
int count ;
- data1 = key1->data ;
- data2 = key2->data ;
+ data1 = (char *) key1->data ;
+ data2 = (char *) key2->data ;
#ifndef newSVpvn
/* As newSVpv will assume that the data pointer is a null terminated C
return (retval) ;
}
-#ifdef BERKELEY_DB_1_OR_2
+
+#ifdef BERKELEY_DB_1
# define HASH_CB_SIZE_TYPE size_t
#else
# define HASH_CB_SIZE_TYPE u_int32_t
#endif
static DB_Hash_t
+#ifdef AT_LEAST_DB_3_2
+
+#ifdef CAN_PROTOTYPE
+hash_cb(DB * db, const void *data, u_int32_t size)
+#else
+hash_cb(db, data, size)
+DB * db ;
+const void * data ;
+HASH_CB_SIZE_TYPE size ;
+#endif
+
+#else /* Berkeley DB < 3.2 */
+
#ifdef CAN_PROTOTYPE
hash_cb(const void *data, HASH_CB_SIZE_TYPE size)
#else
const void * data ;
HASH_CB_SIZE_TYPE size ;
#endif
+
+#endif
{
#ifdef dTHX
dTHX;
Flags |= DB_TRUNCATE ;
#endif
- status = RETVAL->dbp->open(RETVAL->dbp, name, NULL, RETVAL->type,
+ status = (RETVAL->dbp->open)(RETVAL->dbp, name, NULL, RETVAL->type,
Flags, mode) ;
/* printf("open returned %d %s\n", status, db_strerror(status)) ; */
OUTPUT:
RETVAL
-int
+void
db_FETCH(db, key, flags=0)
DB_File db
DBTKEY key
u_int flags
+ PREINIT:
+ int RETVAL;
CODE:
{
DBT value ;
CurrentDB = db ;
-int
+void
db_FIRSTKEY(db)
DB_File db
+ PREINIT:
+ int RETVAL;
CODE:
{
DBTKEY key ;
OutputKey(ST(0), key) ;
}
-int
+void
db_NEXTKEY(db, key)
DB_File db
DBTKEY key
+ PREINIT:
+ int RETVAL;
CODE:
{
DBT value ;
DBT value ;
int i ;
int One ;
- DB * Db = db->dbp ;
STRLEN n_a;
DBT_clear(key) ;
#ifdef DB_VERSION_MAJOR
RETVAL = (db->cursor->c_put)(db->cursor, &key, &value, DB_BEFORE) ;
#else
- RETVAL = (Db->put)(Db, &key, &value, R_IBEFORE) ;
+ RETVAL = (db->dbp->put)(db->dbp, &key, &value, R_IBEFORE) ;
#endif
if (RETVAL != 0)
break;
OUTPUT:
RETVAL
-I32
+void
pop(db)
DB_File db
ALIAS: POP = 1
+ PREINIT:
+ I32 RETVAL;
CODE:
{
DBTKEY key ;
}
}
-I32
+void
shift(db)
DB_File db
ALIAS: SHIFT = 1
+ PREINIT:
+ I32 RETVAL;
CODE:
{
DBT value ;
int
db_fd(db)
DB_File db
- int status = 0 ;
CODE:
CurrentDB = db ;
#ifdef DB_VERSION_MAJOR
RETVAL = -1 ;
- status = (db->in_memory
- ? -1
- : ((db->dbp)->fd)(db->dbp, &RETVAL) ) ;
- if (status != 0)
- RETVAL = -1 ;
+ {
+ int status = 0 ;
+ status = (db->in_memory
+ ? -1
+ : ((db->dbp)->fd)(db->dbp, &RETVAL) ) ;
+ if (status != 0)
+ RETVAL = -1 ;
+ }
#else
RETVAL = (db->in_memory
? -1
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