DB_File.xs -- Perl 5 interface to Berkeley DB
- written by Paul Marquess (pmarquess@bfsec.bt.co.uk)
- last modified 2nd Feb 1998
- version 1.58
+ written by Paul Marquess <Paul.Marquess@btinternet.com>
+ last modified 27th April 2000
+ version 1.73
All comments/suggestions/problems are welcome
- Copyright (c) 1995, 1996, 1997, 1998 Paul Marquess. All rights reserved.
+ Copyright (c) 1995-2000 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.
1.58 - Fixed a problem with the use of sv_setpvn. When the
size is specified as 0, it does a strlen on the data.
This was ok for DB 1.x, but isn't for DB 2.x.
-
-
+ 1.59 - No change to DB_File.xs
+ 1.60 - Some code tidy up
+ 1.61 - added flagSet macro for DB 2.5.x
+ fixed typo in O_RDONLY test.
+ 1.62 - No change to DB_File.xs
+ 1.63 - Fix to alllow DB 2.6.x to build.
+ 1.64 - Tidied up the 1.x to 2.x flags mapping code.
+ Added a patch from Mark Kettenis <kettenis@wins.uva.nl>
+ to fix a flag mapping problem with O_RDONLY on the Hurd
+ 1.65 - Fixed a bug in the PUSH logic.
+ Added BOOT check that using 2.3.4 or greater
+ 1.66 - Added DBM filter code
+ 1.67 - Backed off the use of newSVpvn.
+ Fixed DBM Filter code for Perl 5.004.
+ Fixed a small memory leak in the filter code.
+ 1.68 - fixed backward compatability bug with R_IAFTER & R_IBEFORE
+ merged in the 5.005_58 changes
+ 1.69 - fixed a bug in push -- DB_APPEND wasn't working properly.
+ Fixed the R_SETCURSOR bug introduced in 1.68
+ Added a new Perl variable $DB_File::db_ver
+ 1.70 - Initialise $DB_File::db_ver and $DB_File::db_version with
+ GV_ADD|GV_ADDMULT -- bug spotted by Nick Ing-Simmons.
+ Added a BOOT check to test for equivalent versions of db.h &
+ libdb.a/so.
+ 1.71 - Support for Berkeley DB version 3.
+ Support for Berkeley DB 2/3's backward compatability mode.
+ Rewrote push
+ 1.72 - No change to DB_File.xs
+ 1.73 - No change to DB_File.xs
*/
#include "perl.h"
#include "XSUB.h"
+#ifndef PERL_VERSION
+# include "patchlevel.h"
+# define PERL_REVISION 5
+# define PERL_VERSION PATCHLEVEL
+# define PERL_SUBVERSION SUBVERSION
+#endif
+
+#if PERL_REVISION == 5 && (PERL_VERSION < 4 || (PERL_VERSION == 4 && PERL_SUBVERSION <= 75 ))
+
+# define PL_sv_undef sv_undef
+# define PL_na na
+
+#endif
+
+/* DEFSV appears first in 5.004_56 */
+#ifndef DEFSV
+# define DEFSV GvSV(defgv)
+#endif
+
/* 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. */
be defined here. This clashes with a field name in db.h, so get rid of it.
*/
#ifdef op
-#undef op
+# undef op
+#endif
+
+#ifdef COMPAT185
+# include <db_185.h>
+#else
+# include <db.h>
+#endif
+
+#ifndef pTHX
+# define pTHX
+# define pTHX_
+# define aTHX
+# define aTHX_
+#endif
+
+#ifndef newSVpvn
+# define newSVpvn(a,b) newSVpv(a,b)
#endif
-#include <db.h>
#include <fcntl.h>
/* #define TRACE */
+#define DBM_FILTERING
+#ifdef TRACE
+# define Trace(x) printf x
+#else
+# define Trace(x)
+#endif
+#define DBT_clear(x) Zero(&x, 1, DBT) ;
+
#ifdef DB_VERSION_MAJOR
+#if DB_VERSION_MAJOR == 2
+# define BERKELEY_DB_1_OR_2
+#endif
+
/* map version 2 features & constants onto their version 1 equivalent */
#ifdef DB_Prefix_t
-#undef DB_Prefix_t
+# undef DB_Prefix_t
#endif
#define DB_Prefix_t size_t
#ifdef DB_Hash_t
-#undef DB_Hash_t
+# undef DB_Hash_t
#endif
#define DB_Hash_t u_int32_t
/* DBTYPE stays the same */
/* HASHINFO, RECNOINFO and BTREEINFO map to DB_INFO */
-typedef DB_INFO INFO ;
+#if DB_VERSION_MAJOR == 2
+ typedef DB_INFO INFO ;
+#else /* DB_VERSION_MAJOR > 2 */
+# define DB_FIXEDLEN (0x8000)
+#endif /* DB_VERSION_MAJOR == 2 */
/* version 2 has db_recno_t in place of recno_t */
typedef db_recno_t recno_t;
#define R_NEXT DB_NEXT
#define R_NOOVERWRITE DB_NOOVERWRITE
#define R_PREV DB_PREV
-#define R_SETCURSOR 0
+
+#if DB_VERSION_MAJOR == 2 && DB_VERSION_MINOR < 5
+# define R_SETCURSOR 0x800000
+#else
+# define R_SETCURSOR (-100)
+#endif
+
#define R_RECNOSYNC 0
#define R_FIXEDLEN DB_FIXEDLEN
#define R_DUP DB_DUP
+
#define db_HA_hash h_hash
#define db_HA_ffactor h_ffactor
#define db_HA_nelem h_nelem
#define DBT_flags(x) x.flags = 0
#define DB_flags(x, v) x |= v
+#if DB_VERSION_MAJOR == 2 && DB_VERSION_MINOR < 5
+# define flagSet(flags, bitmask) ((flags) & (bitmask))
+#else
+# define flagSet(flags, bitmask) (((flags) & DB_OPFLAGS_MASK) == (bitmask))
+#endif
+
#else /* db version 1.x */
+#define BERKELEY_DB_1_OR_2
+
typedef union INFO {
HASHINFO hash ;
RECNOINFO recno ;
#ifdef mDB_Prefix_t
-#ifdef DB_Prefix_t
-#undef DB_Prefix_t
-#endif
-#define DB_Prefix_t mDB_Prefix_t
+# ifdef DB_Prefix_t
+# undef DB_Prefix_t
+# endif
+# define DB_Prefix_t mDB_Prefix_t
#endif
#ifdef mDB_Hash_t
-#ifdef DB_Hash_t
-#undef DB_Hash_t
-#endif
-#define DB_Hash_t mDB_Hash_t
+# ifdef DB_Hash_t
+# undef DB_Hash_t
+# endif
+# define DB_Hash_t mDB_Hash_t
#endif
#define db_HA_hash hash.hash
#define do_SEQ(db, key, value, flag) (db->dbp->seq)(db->dbp, &key, &value, flag)
#define DBT_flags(x)
#define DB_flags(x, v)
+#define flagSet(flags, bitmask) ((flags) & (bitmask))
#endif /* db version 1 */
#define db_sync(db, flags) ((db->dbp)->sync)(db->dbp, flags)
#define db_get(db, key, value, flags) ((db->dbp)->get)(db->dbp, TXN &key, &value, flags)
+
#ifdef DB_VERSION_MAJOR
-#define db_DESTROY(db) ((db->dbp)->close)(db->dbp, 0)
+#define db_DESTROY(db) ( db->cursor->c_close(db->cursor),\
+ (db->dbp->close)(db->dbp, 0) )
#define db_close(db) ((db->dbp)->close)(db->dbp, 0)
-#define db_del(db, key, flags) ((flags & R_CURSOR) \
+#define db_del(db, key, flags) (flagSet(flags, R_CURSOR) \
? ((db->cursor)->c_del)(db->cursor, 0) \
: ((db->dbp)->del)(db->dbp, NULL, &key, flags) )
-#else
+#else /* ! DB_VERSION_MAJOR */
#define db_DESTROY(db) ((db->dbp)->close)(db->dbp)
#define db_close(db) ((db->dbp)->close)(db->dbp)
#define db_del(db, key, flags) ((db->dbp)->del)(db->dbp, &key, flags)
#define db_put(db, key, value, flags) ((db->dbp)->put)(db->dbp, &key, &value, flags)
-#endif
+#endif /* ! DB_VERSION_MAJOR */
+
#define db_seq(db, key, value, flags) do_SEQ(db, key, value, flags)
SV * prefix ;
SV * hash ;
int in_memory ;
+#ifdef BERKELEY_DB_1_OR_2
INFO info ;
+#endif
#ifdef DB_VERSION_MAJOR
DBC * cursor ;
#endif
+#ifdef DBM_FILTERING
+ SV * filter_fetch_key ;
+ SV * filter_store_key ;
+ SV * filter_fetch_value ;
+ SV * filter_store_value ;
+ int filtering ;
+#endif /* DBM_FILTERING */
+
} DB_File_type;
typedef DB_File_type * DB_File ;
typedef DBT DBTKEY ;
+#ifdef DBM_FILTERING
+
+#define ckFilter(arg,type,name) \
+ if (db->type) { \
+ SV * save_defsv ; \
+ /* printf("filtering %s\n", name) ;*/ \
+ if (db->filtering) \
+ croak("recursion detected in %s", name) ; \
+ db->filtering = TRUE ; \
+ save_defsv = newSVsv(DEFSV) ; \
+ sv_setsv(DEFSV, arg) ; \
+ PUSHMARK(sp) ; \
+ (void) perl_call_sv(db->type, G_DISCARD|G_NOARGS); \
+ sv_setsv(arg, DEFSV) ; \
+ sv_setsv(DEFSV, save_defsv) ; \
+ SvREFCNT_dec(save_defsv) ; \
+ db->filtering = FALSE ; \
+ /*printf("end of filtering %s\n", name) ;*/ \
+ }
+
+#else
+
+#define ckFilter(arg,type, name)
+
+#endif /* DBM_FILTERING */
+
#define my_sv_setpvn(sv, d, s) sv_setpvn(sv, (s ? d : (void*)""), s)
-#define OutputValue(arg, name) \
- { if (RETVAL == 0) { \
- my_sv_setpvn(arg, name.data, name.size) ; \
- } \
+#define OutputValue(arg, name) \
+ { if (RETVAL == 0) { \
+ my_sv_setpvn(arg, name.data, name.size) ; \
+ ckFilter(arg, filter_fetch_value,"filter_fetch_value") ; \
+ } \
}
-#define OutputKey(arg, name) \
- { if (RETVAL == 0) \
- { \
- if (db->type != DB_RECNO) { \
- my_sv_setpvn(arg, name.data, name.size); \
- } \
- else \
- sv_setiv(arg, (I32)*(I32*)name.data - 1); \
- } \
+#define OutputKey(arg, name) \
+ { if (RETVAL == 0) \
+ { \
+ if (db->type != DB_RECNO) { \
+ my_sv_setpvn(arg, name.data, name.size); \
+ } \
+ else \
+ sv_setiv(arg, (I32)*(I32*)name.data - 1); \
+ ckFilter(arg, filter_fetch_key,"filter_fetch_key") ; \
+ } \
}
#ifdef DB_VERSION_MAJOR
static int
+#ifdef CAN_PROTOTYPE
+db_put(DB_File db, DBTKEY key, DBT value, u_int flags)
+#else
db_put(db, key, value, flags)
DB_File db ;
DBTKEY key ;
DBT value ;
u_int flags ;
-
+#endif
{
int status ;
- if (flags & R_CURSOR) {
- status = ((db->cursor)->c_del)(db->cursor, 0);
- if (status != 0)
- return status ;
+ if (flagSet(flags, R_IAFTER) || flagSet(flags, R_IBEFORE)) {
+ DBC * temp_cursor ;
+ DBT l_key, l_value;
+
+#if DB_VERSION_MAJOR == 2 && DB_VERSION_MINOR < 6
+ if (((db->dbp)->cursor)(db->dbp, NULL, &temp_cursor) != 0)
+#else
+ if (((db->dbp)->cursor)(db->dbp, NULL, &temp_cursor, 0) != 0)
+#endif
+ return (-1) ;
+
+ memset(&l_key, 0, sizeof(l_key));
+ l_key.data = key.data;
+ l_key.size = key.size;
+ memset(&l_value, 0, sizeof(l_value));
+ l_value.data = value.data;
+ l_value.size = value.size;
+
+ if ( temp_cursor->c_get(temp_cursor, &l_key, &l_value, DB_SET) != 0) {
+ (void)temp_cursor->c_close(temp_cursor);
+ return (-1);
+ }
+
+ status = temp_cursor->c_put(temp_cursor, &key, &value, flags);
+ (void)temp_cursor->c_close(temp_cursor);
+
+ return (status) ;
+ }
+
+
+ if (flagSet(flags, R_CURSOR)) {
+ return ((db->cursor)->c_put)(db->cursor, &key, &value, DB_CURRENT);
+ }
- flags &= ~R_CURSOR ;
+ if (flagSet(flags, R_SETCURSOR)) {
+ if ((db->dbp)->put(db->dbp, NULL, &key, &value, 0) != 0)
+ return -1 ;
+ return ((db->cursor)->c_get)(db->cursor, &key, &value, DB_SET_RANGE);
+
}
return ((db->dbp)->put)(db->dbp, NULL, &key, &value, flags) ;
#endif /* DB_VERSION_MAJOR */
-static void
-GetVersionInfo()
-{
- SV * ver_sv = perl_get_sv("DB_File::db_version", TRUE) ;
-#ifdef DB_VERSION_MAJOR
- int Major, Minor, Patch ;
-
- (void)db_version(&Major, &Minor, &Patch) ;
-
- /* check that libdb is recent enough */
- if (Major == 2 && Minor == 0 && Patch < 5)
- croak("DB_File needs Berkeley DB 2.0.5 or greater, you have %d.%d.%d\n",
- Major, Minor, Patch) ;
-
-#if PATCHLEVEL > 3
- sv_setpvf(ver_sv, "%d.%d", Major, Minor) ;
-#else
- {
- char buffer[40] ;
- sprintf(buffer, "%d.%d", Major, Minor) ;
- sv_setpv(ver_sv, buffer) ;
- }
-#endif
-
-#else
- sv_setiv(ver_sv, 1) ;
-#endif
-
-}
-
static int
+#ifdef CAN_PROTOTYPE
+btree_compare(const DBT *key1, const DBT *key2)
+#else
btree_compare(key1, key2)
const DBT * key1 ;
const DBT * key2 ;
+#endif
{
+#ifdef dTHX
+ dTHX;
+#endif
dSP ;
void * data1, * data2 ;
int retval ;
data1 = key1->data ;
data2 = key2->data ;
+#ifndef newSVpvn
/* As newSVpv will assume that the data pointer is a null terminated C
string if the size parameter is 0, make sure that data points to an
empty string if the length is 0
data1 = "" ;
if (key2->size == 0)
data2 = "" ;
+#endif
ENTER ;
SAVETMPS;
- PUSHMARK(sp) ;
- EXTEND(sp,2) ;
- PUSHs(sv_2mortal(newSVpv(data1,key1->size)));
- PUSHs(sv_2mortal(newSVpv(data2,key2->size)));
+ PUSHMARK(SP) ;
+ EXTEND(SP,2) ;
+ PUSHs(sv_2mortal(newSVpvn(data1,key1->size)));
+ PUSHs(sv_2mortal(newSVpvn(data2,key2->size)));
PUTBACK ;
count = perl_call_sv(CurrentDB->compare, G_SCALAR);
}
static DB_Prefix_t
+#ifdef CAN_PROTOTYPE
+btree_prefix(const DBT *key1, const DBT *key2)
+#else
btree_prefix(key1, key2)
const DBT * key1 ;
const DBT * key2 ;
+#endif
{
+#ifdef dTHX
+ dTHX;
+#endif
dSP ;
void * data1, * data2 ;
int retval ;
data1 = key1->data ;
data2 = key2->data ;
+#ifndef newSVpvn
/* As newSVpv will assume that the data pointer is a null terminated C
string if the size parameter is 0, make sure that data points to an
empty string if the length is 0
data1 = "" ;
if (key2->size == 0)
data2 = "" ;
+#endif
ENTER ;
SAVETMPS;
- PUSHMARK(sp) ;
- EXTEND(sp,2) ;
- PUSHs(sv_2mortal(newSVpv(data1,key1->size)));
- PUSHs(sv_2mortal(newSVpv(data2,key2->size)));
+ PUSHMARK(SP) ;
+ EXTEND(SP,2) ;
+ PUSHs(sv_2mortal(newSVpvn(data1,key1->size)));
+ PUSHs(sv_2mortal(newSVpvn(data2,key2->size)));
PUTBACK ;
count = perl_call_sv(CurrentDB->prefix, G_SCALAR);
}
static DB_Hash_t
+#ifdef CAN_PROTOTYPE
+hash_cb(const void *data, size_t size)
+#else
hash_cb(data, size)
const void * data ;
size_t size ;
+#endif
{
+#ifdef dTHX
+ dTHX;
+#endif
dSP ;
int retval ;
int count ;
+#ifndef newSVpvn
if (size == 0)
data = "" ;
+#endif
/* DGH - Next two lines added to fix corrupted stack problem */
ENTER ;
SAVETMPS;
- PUSHMARK(sp) ;
+ PUSHMARK(SP) ;
- XPUSHs(sv_2mortal(newSVpv((char*)data,size)));
+ XPUSHs(sv_2mortal(newSVpvn((char*)data,size)));
PUTBACK ;
count = perl_call_sv(CurrentDB->hash, G_SCALAR);
}
-#ifdef TRACE
+#if defined(TRACE) && defined(BERKELEY_DB_1_OR_2)
static void
+#ifdef CAN_PROTOTYPE
+PrintHash(INFO *hash)
+#else
PrintHash(hash)
INFO * hash ;
+#endif
{
printf ("HASH Info\n") ;
printf (" hash = %s\n",
}
static void
+#ifdef CAN_PROTOTYPE
+PrintRecno(INFO *recno)
+#else
PrintRecno(recno)
INFO * recno ;
+#endif
{
printf ("RECNO Info\n") ;
printf (" flags = %d\n", recno->db_RE_flags) ;
}
static void
+#ifdef CAN_PROTOTYPE
+PrintBtree(INFO *btree)
+#else
PrintBtree(btree)
INFO * btree ;
+#endif
{
printf ("BTREE Info\n") ;
printf (" compare = %s\n",
static I32
+#ifdef CAN_PROTOTYPE
+GetArrayLength(pTHX_ DB_File db)
+#else
GetArrayLength(db)
DB_File db ;
+#endif
{
DBT key ;
DBT value ;
int RETVAL ;
- DBT_flags(key) ;
- DBT_flags(value) ;
+ DBT_clear(key) ;
+ DBT_clear(value) ;
RETVAL = do_SEQ(db, key, value, R_LAST) ;
- if (RETVAL < 0 && errno == EBADF)
- {
- recno_t oops = -1;
- key.data = &oops;
- key.size = sizeof(oops);
- db_get(db, key, value, 0);
- RETVAL = do_SEQ(db, key, value, R_LAST) ;
- }
if (RETVAL == 0)
RETVAL = *(I32 *)key.data ;
else /* No key means empty file */
}
static recno_t
+#ifdef CAN_PROTOTYPE
+GetRecnoKey(pTHX_ DB_File db, I32 value)
+#else
GetRecnoKey(db, value)
DB_File db ;
I32 value ;
+#endif
{
if (value < 0) {
/* Get the length of the array */
- I32 length = GetArrayLength(db) ;
+ I32 length = GetArrayLength(aTHX_ db) ;
/* check for attempt to write before start of array */
if (length + value + 1 <= 0)
return value ;
}
+
static DB_File
+#ifdef CAN_PROTOTYPE
+ParseOpenInfo(pTHX_ int isHASH, char *name, int flags, int mode, SV *sv)
+#else
ParseOpenInfo(isHASH, name, flags, mode, sv)
int isHASH ;
char * name ;
int flags ;
int mode ;
SV * sv ;
+#endif
{
+
+#ifdef BERKELEY_DB_1_OR_2 /* Berkeley DB Version 1 or 2 */
+
SV ** svp;
HV * action ;
DB_File RETVAL = (DB_File)safemalloc(sizeof(DB_File_type)) ;
void * openinfo = NULL ;
INFO * info = &RETVAL->info ;
+ STRLEN n_a;
/* printf("In ParseOpenInfo name=[%s] flags=[%d] mode = [%d]\n", name, flags, mode) ; */
Zero(RETVAL, 1, DB_File_type) ;
/* Default to HASH */
+#ifdef DBM_FILTERING
+ RETVAL->filtering = 0 ;
+ RETVAL->filter_fetch_key = RETVAL->filter_store_key =
+ RETVAL->filter_fetch_value = RETVAL->filter_store_value =
+#endif /* DBM_FILTERING */
RETVAL->hash = RETVAL->compare = RETVAL->prefix = NULL ;
RETVAL->type = DB_HASH ;
#endif
svp = hv_fetch(action, "bfname", 6, FALSE);
if (svp && SvOK(*svp)) {
- char * ptr = SvPV(*svp,na) ;
+ char * ptr = SvPV(*svp,n_a) ;
#ifdef DB_VERSION_MAJOR
- name = (char*) na ? ptr : NULL ;
+ name = (char*) n_a ? ptr : NULL ;
#else
- info->db_RE_bfname = (char*) (na ? ptr : NULL) ;
+ info->db_RE_bfname = (char*) (n_a ? ptr : NULL) ;
#endif
}
else
{
int value ;
if (SvPOK(*svp))
- value = (int)*SvPV(*svp, na) ;
+ value = (int)*SvPV(*svp, n_a) ;
else
value = SvIV(*svp) ;
if (svp && SvOK(*svp))
{
if (SvPOK(*svp))
- info->db_RE_bval = (u_char)*SvPV(*svp, na) ;
+ info->db_RE_bval = (u_char)*SvPV(*svp, n_a) ;
else
info->db_RE_bval = (u_char)(unsigned long) SvIV(*svp) ;
DB_flags(info->flags, DB_DELIMITER) ;
if ((flags & O_CREAT) == O_CREAT)
Flags |= DB_CREATE ;
-#ifdef O_NONBLOCK
- if ((flags & O_NONBLOCK) == O_NONBLOCK)
- Flags |= DB_EXCL ;
-#endif
-
#if O_RDONLY == 0
if (flags == O_RDONLY)
#else
- if (flags & O_RDONLY) == O_RDONLY)
+ if ((flags & O_RDONLY) == O_RDONLY && (flags & O_RDWR) != O_RDWR)
#endif
Flags |= DB_RDONLY ;
-#ifdef O_NONBLOCK
+#ifdef O_TRUNC
if ((flags & O_TRUNC) == O_TRUNC)
Flags |= DB_TRUNCATE ;
#endif
status = db_open(name, RETVAL->type, Flags, mode, NULL, openinfo, &RETVAL->dbp) ;
if (status == 0)
+#if DB_VERSION_MAJOR == 2 && DB_VERSION_MINOR < 6
status = (RETVAL->dbp->cursor)(RETVAL->dbp, NULL, &RETVAL->cursor) ;
+#else
+ status = (RETVAL->dbp->cursor)(RETVAL->dbp, NULL, &RETVAL->cursor,
+ 0) ;
+#endif
if (status)
RETVAL->dbp = NULL ;
}
#else
+
+#if defined(DB_LIBRARY_COMPATIBILITY_API) && DB_VERSION_MAJOR > 2
+ RETVAL->dbp = __db185_open(name, flags, mode, RETVAL->type, openinfo) ;
+#else
RETVAL->dbp = dbopen(name, flags, mode, RETVAL->type, openinfo) ;
+#endif /* DB_LIBRARY_COMPATIBILITY_API */
+
#endif
return (RETVAL) ;
-}
+#else /* Berkeley DB Version > 2 */
+
+ SV ** svp;
+ HV * action ;
+ DB_File RETVAL = (DB_File)safemalloc(sizeof(DB_File_type)) ;
+ DB * dbp ;
+ STRLEN n_a;
+ int status ;
+
+/* printf("In ParseOpenInfo name=[%s] flags=[%d] mode = [%d]\n", name, flags, mode) ; */
+ Zero(RETVAL, 1, DB_File_type) ;
+
+ /* Default to HASH */
+#ifdef DBM_FILTERING
+ RETVAL->filtering = 0 ;
+ RETVAL->filter_fetch_key = RETVAL->filter_store_key =
+ RETVAL->filter_fetch_value = RETVAL->filter_store_value =
+#endif /* DBM_FILTERING */
+ RETVAL->hash = RETVAL->compare = RETVAL->prefix = NULL ;
+ RETVAL->type = DB_HASH ;
+
+ /* DGH - Next line added to avoid SEGV on existing hash DB */
+ CurrentDB = RETVAL;
+
+ /* fd for 1.86 hash in memory files doesn't return -1 like 1.85 */
+ RETVAL->in_memory = (name == NULL) ;
+
+ status = db_create(&RETVAL->dbp, NULL,0) ;
+ /* printf("db_create returned %d %s\n", status, db_strerror(status)) ; */
+ if (status) {
+ RETVAL->dbp = NULL ;
+ return (RETVAL) ;
+ }
+ dbp = RETVAL->dbp ;
+
+ if (sv)
+ {
+ if (! SvROK(sv) )
+ croak ("type parameter is not a reference") ;
+
+ svp = hv_fetch( (HV*)SvRV(sv), "GOT", 3, FALSE) ;
+ if (svp && SvOK(*svp))
+ action = (HV*) SvRV(*svp) ;
+ else
+ croak("internal error") ;
+
+ if (sv_isa(sv, "DB_File::HASHINFO"))
+ {
+
+ if (!isHASH)
+ croak("DB_File can only tie an associative array to a DB_HASH database") ;
+
+ RETVAL->type = DB_HASH ;
+
+ svp = hv_fetch(action, "hash", 4, FALSE);
+
+ if (svp && SvOK(*svp))
+ {
+ (void)dbp->set_h_hash(dbp, hash_cb) ;
+ RETVAL->hash = newSVsv(*svp) ;
+ }
+
+ svp = hv_fetch(action, "ffactor", 7, FALSE);
+ if (svp)
+ (void)dbp->set_h_ffactor(dbp, SvIV(*svp)) ;
+
+ svp = hv_fetch(action, "nelem", 5, FALSE);
+ if (svp)
+ (void)dbp->set_h_nelem(dbp, SvIV(*svp)) ;
+
+ svp = hv_fetch(action, "bsize", 5, FALSE);
+ if (svp)
+ (void)dbp->set_pagesize(dbp, SvIV(*svp));
+
+ svp = hv_fetch(action, "cachesize", 9, FALSE);
+ if (svp)
+ (void)dbp->set_cachesize(dbp, 0, SvIV(*svp), 0) ;
+
+ svp = hv_fetch(action, "lorder", 6, FALSE);
+ if (svp)
+ (void)dbp->set_lorder(dbp, SvIV(*svp)) ;
+
+ PrintHash(info) ;
+ }
+ else if (sv_isa(sv, "DB_File::BTREEINFO"))
+ {
+ if (!isHASH)
+ croak("DB_File can only tie an associative array to a DB_BTREE database");
+
+ RETVAL->type = DB_BTREE ;
+
+ svp = hv_fetch(action, "compare", 7, FALSE);
+ if (svp && SvOK(*svp))
+ {
+ (void)dbp->set_bt_compare(dbp, btree_compare) ;
+ RETVAL->compare = newSVsv(*svp) ;
+ }
+
+ svp = hv_fetch(action, "prefix", 6, FALSE);
+ if (svp && SvOK(*svp))
+ {
+ (void)dbp->set_bt_prefix(dbp, btree_prefix) ;
+ RETVAL->prefix = newSVsv(*svp) ;
+ }
+
+ svp = hv_fetch(action, "flags", 5, FALSE);
+ if (svp)
+ (void)dbp->set_flags(dbp, SvIV(*svp)) ;
+
+ svp = hv_fetch(action, "cachesize", 9, FALSE);
+ if (svp)
+ (void)dbp->set_cachesize(dbp, 0, SvIV(*svp), 0) ;
+
+ svp = hv_fetch(action, "psize", 5, FALSE);
+ if (svp)
+ (void)dbp->set_pagesize(dbp, SvIV(*svp)) ;
+
+ svp = hv_fetch(action, "lorder", 6, FALSE);
+ if (svp)
+ (void)dbp->set_lorder(dbp, SvIV(*svp)) ;
+
+ PrintBtree(info) ;
+
+ }
+ else if (sv_isa(sv, "DB_File::RECNOINFO"))
+ {
+ int fixed = FALSE ;
+
+ if (isHASH)
+ croak("DB_File can only tie an array to a DB_RECNO database");
+
+ RETVAL->type = DB_RECNO ;
+
+ svp = hv_fetch(action, "flags", 5, FALSE);
+ if (svp) {
+ int flags = SvIV(*svp) ;
+ /* remove FIXDLEN, if present */
+ if (flags & DB_FIXEDLEN) {
+ fixed = TRUE ;
+ flags &= ~DB_FIXEDLEN ;
+ }
+ }
+
+ svp = hv_fetch(action, "cachesize", 9, FALSE);
+ if (svp) {
+ status = dbp->set_cachesize(dbp, 0, SvIV(*svp), 0) ;
+ }
+
+ svp = hv_fetch(action, "psize", 5, FALSE);
+ if (svp) {
+ status = dbp->set_pagesize(dbp, SvIV(*svp)) ;
+ }
+
+ svp = hv_fetch(action, "lorder", 6, FALSE);
+ if (svp) {
+ status = dbp->set_lorder(dbp, SvIV(*svp)) ;
+ }
+
+ svp = hv_fetch(action, "bval", 4, FALSE);
+ if (svp && SvOK(*svp))
+ {
+ int value ;
+ if (SvPOK(*svp))
+ value = (int)*SvPV(*svp, n_a) ;
+ else
+ value = SvIV(*svp) ;
+
+ if (fixed) {
+ status = dbp->set_re_pad(dbp, value) ;
+ }
+ else {
+ status = dbp->set_re_delim(dbp, value) ;
+ }
+
+ }
+
+ if (fixed) {
+ svp = hv_fetch(action, "reclen", 6, FALSE);
+ if (svp) {
+ u_int32_t len = (u_int32_t)SvIV(*svp) ;
+ status = dbp->set_re_len(dbp, len) ;
+ }
+ }
+
+ if (name != NULL) {
+ status = dbp->set_re_source(dbp, name) ;
+ name = NULL ;
+ }
+
+ svp = hv_fetch(action, "bfname", 6, FALSE);
+ if (svp && SvOK(*svp)) {
+ char * ptr = SvPV(*svp,n_a) ;
+ name = (char*) n_a ? ptr : NULL ;
+ }
+ else
+ name = NULL ;
+
+
+ status = dbp->set_flags(dbp, DB_RENUMBER) ;
+
+ if (flags){
+ (void)dbp->set_flags(dbp, flags) ;
+ }
+ PrintRecno(info) ;
+ }
+ else
+ croak("type is not of type DB_File::HASHINFO, DB_File::BTREEINFO or DB_File::RECNOINFO");
+ }
+
+ {
+ int Flags = 0 ;
+ int status ;
+
+ /* Map 1.x flags to 3.x flags */
+ if ((flags & O_CREAT) == O_CREAT)
+ Flags |= DB_CREATE ;
+
+#if O_RDONLY == 0
+ if (flags == O_RDONLY)
+#else
+ if ((flags & O_RDONLY) == O_RDONLY && (flags & O_RDWR) != O_RDWR)
+#endif
+ Flags |= DB_RDONLY ;
+
+#ifdef O_TRUNC
+ if ((flags & O_TRUNC) == O_TRUNC)
+ Flags |= DB_TRUNCATE ;
+#endif
+
+ status = RETVAL->dbp->open(RETVAL->dbp, name, NULL, RETVAL->type,
+ Flags, mode) ;
+ /* printf("open returned %d %s\n", status, db_strerror(status)) ; */
+
+ if (status == 0)
+ status = (RETVAL->dbp->cursor)(RETVAL->dbp, NULL, &RETVAL->cursor,
+ 0) ;
+ /* printf("cursor returned %d %s\n", status, db_strerror(status)) ; */
+
+ if (status)
+ RETVAL->dbp = NULL ;
+
+ }
+
+ return (RETVAL) ;
+
+#endif /* Berkeley DB Version > 2 */
+
+} /* ParseOpenInfo */
-static int
-not_here(s)
-char *s;
-{
- croak("DB_File::%s not implemented on this architecture", s);
- return -1;
-}
static double
+#ifdef CAN_PROTOTYPE
+constant(char *name, int arg)
+#else
constant(name, arg)
char *name;
int arg;
+#endif
{
errno = 0;
switch (*name) {
BOOT:
{
- GetVersionInfo() ;
+ __getBerkeleyDBInfo() ;
+ DBT_clear(empty) ;
empty.data = &zero ;
empty.size = sizeof(recno_t) ;
- DBT_flags(empty) ;
}
double
{
char * name = (char *) NULL ;
SV * sv = (SV *) NULL ;
+ STRLEN n_a;
if (items >= 3 && SvOK(ST(2)))
- name = (char*) SvPV(ST(2), na) ;
+ name = (char*) SvPV(ST(2), n_a) ;
if (items == 6)
sv = ST(5) ;
- RETVAL = ParseOpenInfo(isHASH, name, flags, mode, sv) ;
+ RETVAL = ParseOpenInfo(aTHX_ isHASH, name, flags, mode, sv) ;
if (RETVAL->dbp == NULL)
RETVAL = NULL ;
}
SvREFCNT_dec(db->compare) ;
if (db->prefix)
SvREFCNT_dec(db->prefix) ;
- Safefree(db) ;
+#ifdef DBM_FILTERING
+ if (db->filter_fetch_key)
+ SvREFCNT_dec(db->filter_fetch_key) ;
+ if (db->filter_store_key)
+ SvREFCNT_dec(db->filter_store_key) ;
+ if (db->filter_fetch_value)
+ SvREFCNT_dec(db->filter_fetch_value) ;
+ if (db->filter_store_value)
+ SvREFCNT_dec(db->filter_store_value) ;
+#endif /* DBM_FILTERING */
+ safefree(db) ;
#ifdef DB_VERSION_MAJOR
if (RETVAL > 0)
RETVAL = -1 ;
{
DBT value ;
- DBT_flags(value) ;
+ DBT_clear(value) ;
CurrentDB = db ;
RETVAL = (((db->dbp)->get)(db->dbp, TXN &key, &value, 0) == 0) ;
}
{
DBT value ;
- DBT_flags(value) ;
+ DBT_clear(value) ;
CurrentDB = db ;
/* RETVAL = ((db->dbp)->get)(db->dbp, TXN &key, &value, flags) ; */
RETVAL = db_get(db, key, value, flags) ;
ST(0) = sv_newmortal();
- if (RETVAL == 0)
- my_sv_setpvn(ST(0), value.data, value.size);
+ OutputValue(ST(0), value)
}
int
{
DBTKEY key ;
DBT value ;
- DB * Db = db->dbp ;
- DBT_flags(key) ;
- DBT_flags(value) ;
+ DBT_clear(key) ;
+ DBT_clear(value) ;
CurrentDB = db ;
RETVAL = do_SEQ(db, key, value, R_FIRST) ;
ST(0) = sv_newmortal();
- if (RETVAL == 0)
- {
- if (db->type != DB_RECNO)
- my_sv_setpvn(ST(0), key.data, key.size);
- else
- sv_setiv(ST(0), (I32)*(I32*)key.data - 1);
- }
+ OutputKey(ST(0), key) ;
}
int
CODE:
{
DBT value ;
- DB * Db = db->dbp ;
- DBT_flags(value) ;
+ DBT_clear(value) ;
CurrentDB = db ;
RETVAL = do_SEQ(db, key, value, R_NEXT) ;
ST(0) = sv_newmortal();
- if (RETVAL == 0)
- {
- if (db->type != DB_RECNO)
- my_sv_setpvn(ST(0), key.data, key.size);
- else
- sv_setiv(ST(0), (I32)*(I32*)key.data - 1);
- }
+ OutputKey(ST(0), key) ;
}
#
int i ;
int One ;
DB * Db = db->dbp ;
+ STRLEN n_a;
- DBT_flags(key) ;
- DBT_flags(value) ;
+ DBT_clear(key) ;
+ DBT_clear(value) ;
CurrentDB = db ;
#ifdef DB_VERSION_MAJOR
/* get the first value */
#endif
for (i = items-1 ; i > 0 ; --i)
{
- value.data = SvPV(ST(i), na) ;
- value.size = na ;
+ value.data = SvPV(ST(i), n_a) ;
+ value.size = n_a ;
One = 1 ;
key.data = &One ;
key.size = sizeof(int) ;
{
DBTKEY key ;
DBT value ;
- DB * Db = db->dbp ;
- DBT_flags(key) ;
- DBT_flags(value) ;
+ DBT_clear(key) ;
+ DBT_clear(value) ;
CurrentDB = db ;
/* First get the final value */
if (RETVAL == 0)
{
/* the call to del will trash value, so take a copy now */
- my_sv_setpvn(ST(0), value.data, value.size);
+ OutputValue(ST(0), value) ;
RETVAL = db_del(db, key, R_CURSOR) ;
if (RETVAL != 0)
- sv_setsv(ST(0), &sv_undef);
+ sv_setsv(ST(0), &PL_sv_undef);
}
}
{
DBT value ;
DBTKEY key ;
- DB * Db = db->dbp ;
- DBT_flags(key) ;
- DBT_flags(value) ;
+ DBT_clear(key) ;
+ DBT_clear(value) ;
CurrentDB = db ;
/* get the first value */
RETVAL = do_SEQ(db, key, value, R_FIRST) ;
if (RETVAL == 0)
{
/* the call to del will trash value, so take a copy now */
- my_sv_setpvn(ST(0), value.data, value.size);
+ OutputValue(ST(0), value) ;
RETVAL = db_del(db, key, R_CURSOR) ;
if (RETVAL != 0)
- sv_setsv (ST(0), &sv_undef) ;
+ sv_setsv (ST(0), &PL_sv_undef) ;
}
}
CODE:
{
DBTKEY key ;
- DBTKEY * keyptr = &key ;
DBT value ;
DB * Db = db->dbp ;
int i ;
+ STRLEN n_a;
+ int keyval ;
DBT_flags(key) ;
DBT_flags(value) ;
CurrentDB = db ;
/* Set the Cursor to the Last element */
RETVAL = do_SEQ(db, key, value, R_LAST) ;
+#ifndef DB_VERSION_MAJOR
if (RETVAL >= 0)
+#endif
{
- if (RETVAL == 1)
- keyptr = &empty ;
-#ifdef DB_VERSION_MAJOR
- for (i = 1 ; i < items ; ++i)
- {
-
- ++ (* (int*)key.data) ;
- value.data = SvPV(ST(i), na) ;
- value.size = na ;
- RETVAL = (Db->put)(Db, NULL, &key, &value, 0) ;
- if (RETVAL != 0)
- break;
- }
-#else
- for (i = items - 1 ; i > 0 ; --i)
+ if (RETVAL == 0)
+ keyval = *(int*)key.data ;
+ else
+ keyval = 0 ;
+ for (i = 1 ; i < items ; ++i)
{
- value.data = SvPV(ST(i), na) ;
- value.size = na ;
- RETVAL = (Db->put)(Db, keyptr, &value, R_IAFTER) ;
+ value.data = SvPV(ST(i), n_a) ;
+ value.size = n_a ;
+ ++ keyval ;
+ key.data = &keyval ;
+ key.size = sizeof(int) ;
+ RETVAL = (Db->put)(Db, TXN &key, &value, 0) ;
if (RETVAL != 0)
break;
}
-#endif
}
}
OUTPUT:
RETVAL
-
I32
length(db)
DB_File db
ALIAS: FETCHSIZE = 1
CODE:
CurrentDB = db ;
- RETVAL = GetArrayLength(db) ;
+ RETVAL = GetArrayLength(aTHX_ db) ;
OUTPUT:
RETVAL
u_int flags
CODE:
CurrentDB = db ;
- DBT_flags(value) ;
+ DBT_clear(value) ;
RETVAL = db_get(db, key, value, flags) ;
#ifdef DB_VERSION_MAJOR
if (RETVAL > 0)
#endif
OUTPUT:
RETVAL
- key if (flags & (R_IAFTER|R_IBEFORE)) OutputKey(ST(1), key);
+ key if (flagSet(flags, R_IAFTER) || flagSet(flags, R_IBEFORE)) OutputKey(ST(1), key);
int
db_fd(db)
u_int flags
CODE:
CurrentDB = db ;
- DBT_flags(value) ;
+ DBT_clear(value) ;
RETVAL = db_seq(db, key, value, flags);
#ifdef DB_VERSION_MAJOR
if (RETVAL > 0)
key
value
+#ifdef DBM_FILTERING
+
+#define setFilter(type) \
+ { \
+ if (db->type) \
+ RETVAL = sv_mortalcopy(db->type) ; \
+ ST(0) = RETVAL ; \
+ if (db->type && (code == &PL_sv_undef)) { \
+ SvREFCNT_dec(db->type) ; \
+ db->type = NULL ; \
+ } \
+ else if (code) { \
+ if (db->type) \
+ sv_setsv(db->type, code) ; \
+ else \
+ db->type = newSVsv(code) ; \
+ } \
+ }
+
+
+SV *
+filter_fetch_key(db, code)
+ DB_File db
+ SV * code
+ SV * RETVAL = &PL_sv_undef ;
+ CODE:
+ setFilter(filter_fetch_key) ;
+
+SV *
+filter_store_key(db, code)
+ DB_File db
+ SV * code
+ SV * RETVAL = &PL_sv_undef ;
+ CODE:
+ setFilter(filter_store_key) ;
+
+SV *
+filter_fetch_value(db, code)
+ DB_File db
+ SV * code
+ SV * RETVAL = &PL_sv_undef ;
+ CODE:
+ setFilter(filter_fetch_value) ;
+
+SV *
+filter_store_value(db, code)
+ DB_File db
+ SV * code
+ SV * RETVAL = &PL_sv_undef ;
+ CODE:
+ setFilter(filter_store_value) ;
+
+#endif /* DBM_FILTERING */
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