/* ldbm.c - ldap dbm compatibility routines */
-
-/* Patched for Berkeley DB version 2.0; /KSp; 98/02/23
+/* $OpenLDAP$ */
+/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
+ *
+ * Copyright 1998-2003 The OpenLDAP Foundation.
+ * Portions Copyright 1998-2003 Kurt D. Zeilenga.
+ * Portions Copyright 1998-2001 Net Boolean Incorporated.
+ * All rights reserved.
*
- * - DB version 2.6.4b ; 1998/12/28, /KSp
- * - DB_DBT_MALLOC ; 1998/03/22, /KSp
- * - basic implementation; 1998/02/23, /KSp
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted only as authorized by the OpenLDAP
+ * Public License.
+ *
+ * A copy of this license is available in the file LICENSE in the
+ * top-level directory of the distribution or, alternatively, at
+ * <http://www.OpenLDAP.org/license.html>.
+ */
+/* ACKNOWLEDGEMENTS:
+ * This work was originally developed by the University of Michigan
+ * (as part of U-MICH LDAP). Additional significant contributors
+ * include:
+ * Gary Williams
+ * Howard Chu
+ * Juan Gomez
+ * Kurt D. Zeilenga
+ * Kurt Spanier
+ * Mark Whitehouse
+ * Randy Kundee
*/
#include "portable.h"
#include "ldbm.h"
#include "ldap_pvt_thread.h"
-
void
ldbm_datum_free( LDBM ldbm, Datum data )
{
if ( data.dptr ) {
free( data.dptr );
- memset( &data, 0, sizeof( Datum ));
+ memset( &data, '\0', sizeof( Datum ));
data.dptr = NULL;
}
}
-
Datum
ldbm_datum_dup( LDBM ldbm, Datum data )
{
return( dup );
}
dup.dsize = data.dsize;
- if ( (dup.dptr = (char *) malloc( data.dsize )) != NULL )
- memcpy( dup.dptr, data.dptr, data.dsize );
+
+ if ( (dup.dptr = (char *) malloc( data.dsize )) != NULL ) {
+ AC_MEMCPY( dup.dptr, data.dptr, data.dsize );
+ }
return( dup );
}
static int ldbm_initialized = 0;
-#ifndef HAVE_BERKELEY_DB2
-/* Everything but DB2 is non-reentrant */
+#if defined( USE_BERKELEY_CDB )
+ /* not currently supported */
+#define LDBM_RWLOCK_INIT ((void) 0)
+#define LDBM_RWLOCK_DESTROY ((void) 0)
+#define LDBM_WLOCK ((void) 0)
+#define LDBM_WUNLOCK ((void) 0)
+#define LDBM_RLOCK ((void) 0)
+#define LDBM_RUNLOCK ((void) 0)
+
+#elif defined( HAVE_BERKELEY_DB_THREAD )
+static ldap_pvt_thread_rdwr_t ldbm_big_rdwr;
+#define LDBM_RWLOCK_INIT (ldap_pvt_thread_rdwr_init( &ldbm_big_rdwr ))
+#define LDBM_RWLOCK_DESTROY (ldap_pvt_thread_rdwr_destroy( &ldbm_big_rdwr ))
+#define LDBM_WLOCK (ldap_pvt_thread_rdwr_wlock(&ldbm_big_rdwr))
+#define LDBM_WUNLOCK (ldap_pvt_thread_rdwr_wunlock(&ldbm_big_rdwr))
+#define LDBM_RLOCK (ldap_pvt_thread_rdwr_rlock(&ldbm_big_rdwr))
+#define LDBM_RUNLOCK (ldap_pvt_thread_rdwr_runlock(&ldbm_big_rdwr))
+#else
static ldap_pvt_thread_mutex_t ldbm_big_mutex;
-#define LDBM_LOCK (ldap_pvt_thread_mutex_lock(&ldbm_big_mutex))
-#define LDBM_UNLOCK (ldap_pvt_thread_mutex_unlock(&ldbm_big_mutex))
-
-int ldbm_initialize( void )
-{
- if(ldbm_initialized++) return 1;
-
- ldap_pvt_thread_mutex_init( &ldbm_big_mutex );
-
- return 0;
-}
-
-int ldbm_shutdown( void )
-{
- if( !ldbm_initialized ) return 1;
+#define LDBM_RWLOCK_INIT (ldap_pvt_thread_mutex_init( &ldbm_big_mutex ))
+#define LDBM_RWLOCK_DESTROY (ldap_pvt_thread_mutex_destroy( &ldbm_big_mutex ))
+#define LDBM_WLOCK (ldap_pvt_thread_mutex_lock(&ldbm_big_mutex))
+#define LDBM_WUNLOCK (ldap_pvt_thread_mutex_unlock(&ldbm_big_mutex))
+#define LDBM_RLOCK LDBM_WLOCK
+#define LDBM_RUNLOCK LDBM_WUNLOCK
+#endif
- ldap_pvt_thread_mutex_destroy( &ldbm_big_mutex );
+#if !defined( HAVE_BERKELEY_DB ) || (DB_VERSION_MAJOR < 3)
+ /* a dbEnv for BERKELEYv2 */
+DB_ENV *ldbm_Env = NULL; /* real or fake, depending on db and version */
+#endif
- return 0;
-}
+/* Let's make the version comparisons a little easier... */
+#undef DB_VERSION_X
+#ifdef HAVE_BERKELEY_DB
+#define DB_VERSION_X ((DB_VERSION_MAJOR<<16)|(DB_VERSION_MINOR<<8)|DB_VERSION_PATCH)
+#endif
-#else
+/*******************************************************************
+ * *
+ * Create some special functions to initialize Berkeley DB for *
+ * versions greater than 2. *
+ * *
+ *******************************************************************/
+#if defined( HAVE_BERKELEY_DB ) && (DB_VERSION_MAJOR >= 2)
void *
ldbm_malloc( size_t size )
{
- return( calloc( 1, size ));
+ /* likely should use ber_mem* routines */
+ return( calloc( 1, size ) );
}
#ifdef LDAP_SYSLOG
ldbm_db_errcall( const char *prefix, char *message )
{
#ifdef LDAP_SYSLOG
- syslog( LOG_INFO, "ldbm_db_errcall(): %s %s", prefix, message );
+ syslog( LOG_INFO, "ldbm: %s %s", prefix, message );
#endif
}
-/* a dbEnv for BERKELEYv2 */
-static DB_ENV ldbm_Env_internal;
-DB_ENV *ldbm_Env = NULL;
-
-/* Berkeley DB 2.x is reentrant */
-#define LDBM_LOCK ((void)0)
-#define LDBM_UNLOCK ((void)0)
-
-int ldbm_initialize( void )
+int ldbm_initialize( const char* home )
{
- int err;
- int envFlags;
+#if DB_VERSION_MAJOR < 3
+ int err;
+ u_int32_t envFlags;
+#endif
if(ldbm_initialized++) return 1;
- memset( &ldbm_Env_internal, 0, sizeof( DB_ENV ));
- ldbm_Env = &ldbm_Env_internal;
+ {
+ char *version;
+ int major, minor, patch;
+ version = db_version( &major, &minor, &patch );
+
+ if( major != DB_VERSION_MAJOR ||
+ minor < DB_VERSION_MINOR )
+ {
+#ifdef LDAP_SYSLOG
+ syslog( LOG_INFO,
+ "ldbm_initialize(): version mismatch\nexpected: %s\ngot: %s\n",
+ DB_VERSION_STRING, version );
+#endif
+ return 1;
+ }
+ }
- ldbm_Env->db_errcall = ldbm_db_errcall;
- ldbm_Env->db_errpfx = "==>";
+#if DB_VERSION_MAJOR < 3
+ ldbm_Env = calloc( 1, sizeof( DB_ENV ));
- envFlags = DB_CREATE | DB_THREAD;
+ if( ldbm_Env == NULL ) return 1;
- if ( ( err = db_appinit( NULL, NULL, ldbm_Env, envFlags )) ) {
- char error[BUFSIZ];
+ ldbm_Env->db_errcall = ldbm_db_errcall;
+ ldbm_Env->db_errpfx = "==>";
- if ( err < 0 ) {
- sprintf( error, "%ld\n", (long) err );
- } else {
- sprintf( error, "%s\n", strerror( err ));
- }
+ envFlags = DB_CREATE | DB_USE_ENVIRON;
+ /* add optional flags */
+#ifdef DB_PRIVATE
+ envFlags |= DB_PRIVATE;
+#endif
+#ifdef HAVE_BERKELEY_DB_THREAD
+ envFlags |= DB_THREAD;
+#endif
+
+ err = db_appinit( home, NULL, ldbm_Env, envFlags );
+
+ if ( err ) {
#ifdef LDAP_SYSLOG
- syslog( LOG_INFO,
- "ldbm_initialize(): FATAL error in db_appinit() : %s\n",
- error );
+ syslog( LOG_INFO, "ldbm_initialize(): "
+ "FATAL error (%d) in db_appinit()\n", err );
#endif
return( 1 );
}
+#endif
+
+ LDBM_RWLOCK_INIT;
return 0;
}
{
if( !ldbm_initialized ) return 1;
+#if DB_VERSION_MAJOR < 3
db_appexit( ldbm_Env );
+#endif
+
+ LDBM_RWLOCK_DESTROY;
+ return 0;
+}
+
+#else /* some DB other than Berkeley V2 or greater */
+
+int ldbm_initialize( const char * home )
+{
+ if(ldbm_initialized++) return 1;
+
+ LDBM_RWLOCK_INIT;
+
+ return 0;
+}
+
+int ldbm_shutdown( void )
+{
+ if( !ldbm_initialized ) return 1;
+
+ LDBM_RWLOCK_DESTROY;
return 0;
}
+#endif /* HAVE_BERKELEY_DB */
+
+#if defined( HAVE_BERKELEY_DB ) && (DB_VERSION_MAJOR >= 3)
+
+DB_ENV *ldbm_initialize_env(const char *home, int dbcachesize, int *envdirok)
+{
+ DB_ENV *env = NULL;
+ int err;
+ u_int32_t envFlags;
+#ifdef HAVE_EBCDIC
+ char n2[2048];
+#endif
+
+ err = db_env_create( &env, 0 );
+
+ if ( err ) {
+#ifdef LDAP_SYSLOG
+ syslog( LOG_INFO, "ldbm_initialize_env(): "
+ "FATAL error in db_env_create() : %s (%d)\n",
+ db_strerror( err ), err );
+#endif
+ return NULL;
+ }
+
+#if DB_VERSION_X >= 0x030300
+ /* This interface appeared in 3.3 */
+ env->set_alloc( env, ldbm_malloc, NULL, NULL );
+#endif
+
+ env->set_errcall( env, ldbm_db_errcall );
+ env->set_errpfx( env, "==>" );
+ if (dbcachesize) {
+ env->set_cachesize( env, 0, dbcachesize, 0 );
+ }
+
+ envFlags = DB_CREATE | DB_INIT_MPOOL | DB_USE_ENVIRON;
+#ifdef DB_PRIVATE
+ envFlags |= DB_PRIVATE;
+#endif
+#ifdef DB_MPOOL_PRIVATE
+ envFlags |= DB_MPOOL_PRIVATE;
+#endif
+#ifdef HAVE_BERKELEY_DB_THREAD
+ envFlags |= DB_THREAD;
+#endif
+
+#ifdef HAVE_EBCDIC
+ strncpy(n2, home, sizeof(n2)-1);
+ n2[sizeof(n2)-1] = '\0';
+ __atoe(n2);
+ home = n2;
+#endif
+#if DB_VERSION_X >= 0x030100
+ err = env->open( env, home, envFlags, 0 );
+#else
+ /* 3.0.x requires an extra argument */
+ err = env->open( env, home, NULL, envFlags, 0 );
+#endif
+
+ if ( err != 0 ) {
+#ifdef LDAP_SYSLOG
+ syslog( LOG_INFO, "ldbm_initialize_env(): "
+ "FATAL error in dbEnv->open() : %s (%d)\n",
+ db_strerror( err ), err );
+#endif
+ env->close( env, 0 );
+ return NULL;
+ }
+
+ *envdirok = 1;
+ return env;
+}
+
+void ldbm_shutdown_env(DB_ENV *env)
+{
+ env->close( env, 0 );
+}
+
+#else
+
+DB_ENV *ldbm_initialize_env(const char *home, int dbcachesize, int *envdirok)
+{
+ return ldbm_Env;
+}
+
+void ldbm_shutdown_env(DB_ENV *env)
+{
+}
+
#endif
#if defined( LDBM_USE_DBHASH ) || defined( LDBM_USE_DBBTREE )
*****************************************************************/
LDBM
-ldbm_open( char *name, int rw, int mode, int dbcachesize )
+ldbm_open( DB_ENV *env, char *name, int rw, int mode, int dbcachesize )
{
LDBM ret = NULL;
+#ifdef HAVE_EBCDIC
+ char n2[2048];
+#endif
+
+#if DB_VERSION_MAJOR >= 3
+ int err;
+
+ LDBM_WLOCK;
-#ifdef HAVE_BERKELEY_DB2
+ err = db_create( &ret, env, 0 );
+ if ( err != 0 ) {
+ (void)ret->close(ret, 0);
+ LDBM_WUNLOCK;
+
+ return NULL;
+ }
+
+#if DB_VERSION_X < 0x030300
+ ret->set_malloc( ret, ldbm_malloc );
+#endif
+
+ ret->set_pagesize( ret, DEFAULT_DB_PAGE_SIZE );
+
+ /* likely should use ber_mem* routines */
+
+#ifdef HAVE_EBCDIC
+ strncpy(n2, name, sizeof(n2)-1);
+ n2[sizeof(n2)-1] = '\0';
+ __atoe(n2);
+ name = n2;
+#endif
+#if DB_VERSION_X >= 0x040111
+ err = ret->open( ret, NULL, name, NULL, DB_TYPE, rw, mode);
+#else
+ err = ret->open( ret, name, NULL, DB_TYPE, rw, mode);
+#endif
+
+ if ( err != 0 ) {
+ int tmp = errno;
+ (void)ret->close(ret, 0);
+ errno = tmp;
+
+ LDBM_WUNLOCK;
+ return NULL;
+ }
+
+ LDBM_WUNLOCK;
+
+#elif DB_VERSION_MAJOR >= 2
DB_INFO dbinfo;
- memset( &dbinfo, 0, sizeof( dbinfo ));
+ memset( &dbinfo, '\0', sizeof( dbinfo ));
-#if defined( DB_VERSION_MAJOR ) && defined( DB_VERSION_MINOR ) && \
- DB_VERSION_MAJOR == 2 && DB_VERSION_MINOR == 4
+#if DB_VERSION_MAJOR == 2 && DB_VERSION_MINOR == 4
/*
* BerkeleyDB 2.4 do not allow db_cachesize
* to be specified if an DB_ENV is.
*/
#else
/* set db_cachesize of MPOOL is NOT being used. */
- if (( ldbm_Env == NULL ) || ( ldbm_Env->mp_info == NULL ))
+ if (( ldbm_Env == NULL ) || ( ldbm_Env->mp_info == NULL )) {
dbinfo.db_cachesize = dbcachesize;
+ }
#endif
- dbinfo.db_pagesize = DEFAULT_DB_PAGE_SIZE;
- dbinfo.db_malloc = ldbm_malloc;
+ dbinfo.db_pagesize = DEFAULT_DB_PAGE_SIZE;
+ dbinfo.db_malloc = ldbm_malloc;
- LDBM_LOCK;
- (void) db_open( name, DB_TYPE, rw, mode, ldbm_Env, &dbinfo, &ret );
- LDBM_UNLOCK;
+ LDBM_WLOCK;
+ (void) db_open( name, DB_TYPE, rw, mode, ldbm_Env, &dbinfo, &ret );
+ LDBM_WUNLOCK;
#else
void *info;
info = NULL;
}
- LDBM_LOCK;
+ LDBM_WLOCK;
ret = dbopen( name, rw, mode, DB_TYPE, info );
- LDBM_UNLOCK;
-
+ LDBM_WUNLOCK;
#endif
- return( ret );
+ return ret;
}
void
ldbm_close( LDBM ldbm )
{
- LDBM_LOCK;
-#ifdef HAVE_BERKELEY_DB2
- (*ldbm->close)( ldbm, 0 );
+ LDBM_WLOCK;
+#if DB_VERSION_MAJOR >= 2
+ ldbm->close( ldbm, 0 );
#else
- (*ldbm->close)( ldbm );
+ ldbm->close( ldbm );
#endif
- LDBM_UNLOCK;
+ LDBM_WUNLOCK;
}
void
ldbm_sync( LDBM ldbm )
{
- LDBM_LOCK;
+ LDBM_WLOCK;
(*ldbm->sync)( ldbm, 0 );
- LDBM_UNLOCK;
+ LDBM_WUNLOCK;
}
Datum
Datum data;
int rc;
- LDBM_LOCK;
+ LDBM_RLOCK;
-#ifdef HAVE_BERKELEY_DB2
+#if DB_VERSION_MAJOR >= 2
ldbm_datum_init( data );
data.flags = DB_DBT_MALLOC;
- if ( (rc = (*ldbm->get)( ldbm, NULL, &key, &data, 0 )) != 0 ) {
+ if ( (rc = ldbm->get( ldbm, NULL, &key, &data, 0 )) != 0 ) {
ldbm_datum_free( ldbm, data );
+ data.dptr = NULL;
+ data.dsize = 0;
+ }
#else
- if ( (rc = (*ldbm->get)( ldbm, &key, &data, 0 )) == 0 ) {
+ if ( (rc = ldbm->get( ldbm, &key, &data, 0 )) == 0 ) {
/* Berkeley DB 1.85 don't malloc the data for us */
/* duplicate it for to ensure reentrancy */
data = ldbm_datum_dup( ldbm, data );
} else {
-#endif
data.dptr = NULL;
data.dsize = 0;
}
+#endif
- LDBM_UNLOCK;
+ LDBM_RUNLOCK;
return( data );
}
{
int rc;
- LDBM_LOCK;
+ LDBM_WLOCK;
-#ifdef HAVE_BERKELEY_DB2
- rc = (*ldbm->put)( ldbm, NULL, &key, &data, flags & ~LDBM_SYNC );
- rc = (-1 ) * rc;
+#if DB_VERSION_MAJOR >= 2
+ rc = ldbm->put( ldbm, NULL, &key, &data, flags & ~LDBM_SYNC );
+ rc = (-1) * rc;
#else
- rc = (*ldbm->put)( ldbm, &key, &data, flags & ~LDBM_SYNC );
+ rc = ldbm->put( ldbm, &key, &data, flags & ~LDBM_SYNC );
#endif
if ( flags & LDBM_SYNC )
- (*ldbm->sync)( ldbm, 0 );
+ ldbm->sync( ldbm, 0 );
- LDBM_UNLOCK;
+ LDBM_WUNLOCK;
return( rc );
}
{
int rc;
- LDBM_LOCK;
+ LDBM_WLOCK;
-#ifdef HAVE_BERKELEY_DB2
- rc = (*ldbm->del)( ldbm, NULL, &key, 0 );
- rc = (-1 ) * rc;
+#if DB_VERSION_MAJOR >= 2
+ rc = ldbm->del( ldbm, NULL, &key, 0 );
+ rc = (-1) * rc;
#else
- rc = (*ldbm->del)( ldbm, &key, 0 );
+ rc = ldbm->del( ldbm, &key, 0 );
#endif
- (*ldbm->sync)( ldbm, 0 );
+ ldbm->sync( ldbm, 0 );
- LDBM_UNLOCK;
+ LDBM_WUNLOCK;
return( rc );
}
Datum
-#ifdef HAVE_BERKELEY_DB2
-ldbm_firstkey( LDBM ldbm, DBC **dbch )
-#else
-ldbm_firstkey( LDBM ldbm )
-#endif
+ldbm_firstkey( LDBM ldbm, LDBMCursor **dbch )
{
Datum key, data;
+ int rc;
-#ifdef HAVE_BERKELEY_DB2
- DBC *dbci;
+#if DB_VERSION_MAJOR >= 2
+ LDBMCursor *dbci;
ldbm_datum_init( key );
ldbm_datum_init( data );
key.flags = data.flags = DB_DBT_MALLOC;
- LDBM_LOCK;
+ LDBM_RLOCK;
/* acquire a cursor for the DB */
+# if DB_VERSION_X >= 0x020600
+ rc = ldbm->cursor( ldbm, NULL, &dbci, 0 );
+# else
+ rc = ldbm->cursor( ldbm, NULL, &dbci );
+# endif
-# if defined( DB_VERSION_MAJOR ) && defined( DB_VERSION_MINOR ) && \
- DB_VERSION_MAJOR == 2 && DB_VERSION_MINOR < 6
-
- if ( (*ldbm->cursor)( ldbm, NULL, &dbci ))
-
-# else
- if ( (*ldbm->cursor)( ldbm, NULL, &dbci, 0 ))
-# endif
- {
+ if( rc ) {
key.dptr = NULL;
- return( key );
} else {
*dbch = dbci;
- if ( (*dbci->c_get)( dbci, &key, &data, DB_NEXT ) == 0 ) {
+ if ( dbci->c_get( dbci, &key, &data, DB_NEXT ) == 0 ) {
ldbm_datum_free( ldbm, data );
+ } else {
+ key.dptr = NULL;
+ key.dsize = 0;
}
- else {
+ }
+
+ LDBM_RUNLOCK;
+
#else
- int rc;
+ LDBM_RLOCK;
- LDBM_LOCK;
+ rc = ldbm->seq( ldbm, &key, &data, R_FIRST );
- if ( (rc = (*ldbm->seq)( ldbm, &key, &data, R_FIRST )) == 0 ) {
+ if ( rc == 0 ) {
key = ldbm_datum_dup( ldbm, key );
- }
- else {
-#endif
+ } else {
key.dptr = NULL;
key.dsize = 0;
}
-#ifdef HAVE_BERKELEY_DB2
- }
+ LDBM_RUNLOCK;
#endif
- LDBM_UNLOCK;
-
return( key );
}
Datum
-#ifdef HAVE_BERKELEY_DB2
-ldbm_nextkey( LDBM ldbm, Datum key, DBC *dbcp )
-#else
-ldbm_nextkey( LDBM ldbm, Datum key )
-#endif
+ldbm_nextkey( LDBM ldbm, Datum key, LDBMCursor *dbcp )
{
+ int rc;
Datum data;
-#ifdef HAVE_BERKELEY_DB2
+ LDBM_RLOCK;
+
+#if DB_VERSION_MAJOR >= 2
ldbm_datum_init( data );
ldbm_datum_free( ldbm, key );
key.flags = data.flags = DB_DBT_MALLOC;
- LDBM_LOCK;
-
- if ( (*dbcp->c_get)( dbcp, &key, &data, DB_NEXT ) == 0 ) {
+ rc = dbcp->c_get( dbcp, &key, &data, DB_NEXT );
+ if ( rc == 0 ) {
ldbm_datum_free( ldbm, data );
- }
- else {
+ } else
#else
- int rc;
-
- LDBM_LOCK;
+ rc = ldbm->seq( ldbm, &key, &data, R_NEXT );
- if ( (rc = (*ldbm->seq)( ldbm, &key, &data, R_NEXT )) == 0 ) {
+ if ( rc == 0 ) {
key = ldbm_datum_dup( ldbm, key );
- }
- else {
+ } else
#endif
+ {
key.dptr = NULL;
key.dsize = 0;
}
- LDBM_UNLOCK;
-
+ LDBM_RUNLOCK;
return( key );
}
return( errno );
}
+/******************************************************************
+ * *
+ * END Berkeley section *
+ * *
+ ******************************************************************/
+
#elif defined( HAVE_GDBM )
#ifdef HAVE_ST_BLKSIZE
*****************************************************************/
LDBM
-ldbm_open( char *name, int rw, int mode, int dbcachesize )
+ldbm_open( DB_ENV *env, char *name, int rw, int mode, int dbcachesize )
{
LDBM db;
#ifdef HAVE_ST_BLKSIZE
struct stat st;
#endif
+#ifdef HAVE_EBCDIC
+ char n2[2048];
+
+ strncpy(n2, name, sizeof(n2)-1);
+ n2[sizeof(n2)-1] = '\0';
+ __atoe(n2);
+ name = n2;
+#endif
- LDBM_LOCK;
+ LDBM_WLOCK;
- if ( (db = gdbm_open( name, 0, rw | GDBM_FAST, mode, 0 )) == NULL ) {
- LDBM_UNLOCK;
+ if ( (db = gdbm_open( name, 0, rw | GDBM_FAST, mode, 0 )) == NULL ) {
+ LDBM_WUNLOCK;
return( NULL );
}
#ifdef HAVE_ST_BLKSIZE
if ( dbcachesize > 0 && stat( name, &st ) == 0 ) {
- dbcachesize = (dbcachesize / st.st_blksize);
+ dbcachesize /= st.st_blksize;
+ if( dbcachesize == 0 ) dbcachesize = 1;
gdbm_setopt( db, GDBM_CACHESIZE, &dbcachesize, sizeof(int) );
}
#else
- dbcachesize = (dbcachesize / 4096);
- gdbm_setopt( db, GDBM_CACHESIZE, &dbcachesize, sizeof(int) );
+ if ( dbcachesize > 0 ) {
+ dbcachesize /= 4096;
+ if( dbcachesize == 0 ) dbcachesize = 1;
+ gdbm_setopt( db, GDBM_CACHESIZE, &dbcachesize, sizeof(int) );
+ }
#endif
- LDBM_UNLOCK;
+ LDBM_WUNLOCK;
return( db );
}
void
ldbm_close( LDBM ldbm )
{
- LDBM_LOCK;
+ LDBM_WLOCK;
gdbm_close( ldbm );
- LDBM_UNLOCK;
+ LDBM_WUNLOCK;
}
void
ldbm_sync( LDBM ldbm )
{
- LDBM_LOCK;
+ LDBM_WLOCK;
gdbm_sync( ldbm );
- LDBM_UNLOCK;
+ LDBM_WUNLOCK;
}
Datum
{
Datum d;
- LDBM_LOCK;
+ LDBM_RLOCK;
d = gdbm_fetch( ldbm, key );
- LDBM_UNLOCK;
+ LDBM_RUNLOCK;
return d;
}
{
int rc;
- LDBM_LOCK;
+ LDBM_WLOCK;
rc = gdbm_store( ldbm, key, data, flags & ~LDBM_SYNC );
if ( flags & LDBM_SYNC )
gdbm_sync( ldbm );
- LDBM_UNLOCK;
+ LDBM_WUNLOCK;
return( rc );
}
{
int rc;
- LDBM_LOCK;
+ LDBM_WLOCK;
rc = gdbm_delete( ldbm, key );
gdbm_sync( ldbm );
- LDBM_UNLOCK;
+ LDBM_WUNLOCK;
return( rc );
}
Datum
-ldbm_firstkey( LDBM ldbm )
+ldbm_firstkey( LDBM ldbm, LDBMCursor **dbcp )
{
Datum d;
- LDBM_LOCK;
+ LDBM_RLOCK;
d = gdbm_firstkey( ldbm );
- LDBM_UNLOCK;
+ LDBM_RUNLOCK;
+
+ if ( d.dptr != NULL ) {
+ *dbcp = (Datum *) malloc( sizeof( Datum ) );
+ **dbcp = ldbm_datum_dup( ldbm, d );
+ }
return d;
}
Datum
-ldbm_nextkey( LDBM ldbm, Datum key )
+ldbm_nextkey( LDBM ldbm, Datum key, LDBMCursor *dbcp )
{
Datum d;
- LDBM_LOCK;
- d = gdbm_nextkey( ldbm, key );
- LDBM_UNLOCK;
+ LDBM_RLOCK;
+ d = gdbm_nextkey( ldbm, *dbcp );
+ LDBM_RUNLOCK;
+
+ ldbm_datum_free( ldbm, *dbcp );
+
+ if ( d.dptr != NULL ) {
+ *dbcp = ldbm_datum_dup( ldbm, d );
+ } else {
+ free( dbcp );
+ }
return d;
}
{
int err;
- LDBM_LOCK;
+ LDBM_WLOCK;
err = gdbm_errno;
- LDBM_UNLOCK;
+ LDBM_WUNLOCK;
return( err );
}
/* MMAPED DBM HASHING DATABASE */
-#include <ac/alloca.h>
#include <ac/string.h>
/* #define MDBM_DEBUG */
/* Use chaining */
-
#define mdbm_store mdbm_chain_store
#define mdbm_fetch mdbm_chain_fetch
#define mdbm_delete mdbm_chain_delete
*****************************************************************/
LDBM
-ldbm_open( char *name, int rw, int mode, int dbcachesize )
+ldbm_open( DB_ENV *env, char *name, int rw, int mode, int dbcachesize )
{
LDBM db;
fflush( stdout );
#endif
- LDBM_LOCK; /* We need locking here, this is the only non-thread
- * safe function we have.
- */
+ LDBM_WLOCK; /* We need locking here, this is the only non-thread
+ * safe function we have. */
if ( (db = mdbm_open( name, rw, mode, MDBM_PG_SZ )) == NULL ) {
-
- LDBM_UNLOCK;
+ LDBM_WUNLOCK;
#ifdef MDBM_DEBUG
fprintf( stdout, "<==(mdbm)ldbm_open(db=NULL)\n" );
fflush( stdout );
#endif
return( NULL );
-
}
#ifdef MDBM_CHAIN
(void)mdbm_set_chain(db);
#endif
- LDBM_UNLOCK;
+ LDBM_WUNLOCK;
#ifdef MDBM_DEBUG
fprintf( stdout, "<==(mdbm)ldbm_open(db=%p)\n", db );
#endif
return( db );
-
-}/* LDBM ldbm_open() */
-
-
-
+}
void
ldbm_close( LDBM ldbm )
{
-
/* Open and close are not reentrant so we need to use locks here */
#ifdef MDBM_DEBUG
fflush( stdout );
#endif
- LDBM_LOCK;
+ LDBM_WLOCK;
mdbm_close( ldbm );
- LDBM_UNLOCK;
+ LDBM_WUNLOCK;
#ifdef MDBM_DEBUG
fprintf( stdout, "<==(mdbm)ldbm_close()\n" );
fflush( stdout );
#endif
-
-}/* void ldbm_close() */
-
-
-
+}
void
ldbm_sync( LDBM ldbm )
{
-
/* XXX: Not sure if this is re-entrant need to check code, if so
* you can leave LOCKS out.
*/
- LDBM_LOCK;
+ LDBM_WLOCK;
mdbm_sync( ldbm );
- LDBM_UNLOCK;
-
-}/* void ldbm_sync() */
-
+ LDBM_WUNLOCK;
+}
#define MAX_MDBM_RETRY 5
* mode.
*/
- /* LDBM_LOCK; */
-
#ifdef NO_NULL_KEY
k.key.dsize = key.dsize + 1;
- k.key.dptr = alloca(k.key.dsize);
+ k.key.dptr = malloc(k.key.dsize);
*(k.key.dptr) = 'l';
- memcpy( (void *)(k.key.dptr + 1), key.dptr, key.dsize );
+ AC_MEMCPY( (void *)(k.key.dptr + 1), key.dptr, key.dsize );
#else
k.key = key;
#endif
k.val.dptr = NULL;
k.val.dsize = 0;
+ /* LDBM_RLOCK; */
do {
-
d = mdbm_fetch( ldbm, k );
if ( d.dsize > 0 ) {
-
if ( k.val.dptr != NULL ) {
-
- free( k.val.dptr );
-
+ free( k.val.dptr );
}
if ( (k.val.dptr = malloc( d.dsize )) != NULL ) {
-
k.val.dsize = d.dsize;
d = mdbm_fetch( ldbm, k );
} else {
-
d.dsize = 0;
break;
-
}
-
}/* if ( d.dsize > 0 ) */
-
} while ((d.dsize > k.val.dsize) && (++retry < MAX_MDBM_RETRY));
+ /* LDBM_RUNLOCK; */
- /* LDBM_UNLOCK; */
+#ifdef NO_NULL_KEY
+ free(k.key.dptr);
+#endif
return d;
-
-}/* Datum ldbm_fetch() */
-
-
-
+}
int
ldbm_store( LDBM ldbm, Datum key, Datum data, int flags )
fflush( stdout );
#endif
- /* LDBM_LOCK; */
+ /* LDBM_WLOCK; */
#ifdef NO_NULL_KEY
int_key.dsize = key.dsize + 1;
- int_key.dptr = alloca( int_key.dsize );
+ int_key.dptr = malloc( int_key.dsize );
*(int_key.dptr) = 'l'; /* Must not be NULL !*/
- memcpy( (void *)(int_key.dptr + 1), key.dptr, key.dsize );
+ AC_MEMCPY( (void *)(int_key.dptr + 1), key.dptr, key.dsize );
#else
int_key = key;
#endif
mdbm_sync( ldbm );
}
- /* LDBM_UNLOCK; */
+ /* LDBM_WUNLOCK; */
#ifdef MDBM_DEBUG
fprintf( stdout, "<==(mdbm)ldbm_store(rc=%d)\n", rc );
fflush( stdout );
#endif
- return( rc );
-
-}/* int ldbm_store() */
-
-
+#ifdef NO_NULL_KEY
+ free(int_key.dptr);
+#endif
+ return( rc );
+}
int
ldbm_delete( LDBM ldbm, Datum key )
int rc;
Datum int_key;
- /* LDBM_LOCK; */
+ /* LDBM_WLOCK; */
#ifdef NO_NULL_KEY
int_key.dsize = key.dsize + 1;
- int_key.dptr = alloca(int_key.dsize);
+ int_key.dptr = malloc(int_key.dsize);
*(int_key.dptr) = 'l';
- memcpy( (void *)(int_key.dptr + 1), key.dptr, key.dsize );
+ AC_MEMCPY( (void *)(int_key.dptr + 1), key.dptr, key.dsize );
#else
int_key = key;
#endif
rc = mdbm_delete( ldbm, int_key );
- /* LDBM_UNLOCK; */
+ /* LDBM_WUNLOCK; */
+#ifdef NO_NULL_KEY
+ free(int_key.dptr);
+#endif
return( rc );
-
-}/* int ldbm_delete() */
-
-
-
+}
static Datum
ldbm_get_next( LDBM ldbm, kvpair (*fptr)(MDBM *, kvpair) )
{
-
kvpair out;
kvpair in;
Datum ret;
int delta = 0;
#endif
- /* LDBM_LOCK; */
+ /* LDBM_RLOCK; */
in.key.dsize = sz; /* Assume first key in one pg */
- in.key.dptr = alloca(sz);
+ in.key.dptr = malloc(sz);
in.val.dptr = NULL; /* Don't need data just key */
in.val.dsize = 0;
out = fptr( ldbm, in );
if (out.key.dsize > 0) {
+ ret.dsize = out.key.dsize - delta;
- ret.dsize = out.key.dsize - delta;
- if ((ret.dptr = (char *)malloc(ret.dsize)) == NULL) {
-
- ret.dsize = 0;
- ret.dptr = NULL;
-
- } else {
-
- memcpy(ret.dptr, (void *)(out.key.dptr + delta),
- ret.dsize );
+ if ((ret.dptr = (char *)malloc(ret.dsize)) == NULL) {
+ ret.dsize = 0;
+ ret.dptr = NULL;
+ } else {
+ AC_MEMCPY(ret.dptr, (void *)(out.key.dptr + delta),
+ ret.dsize );
}
-
}
- /* LDBM_UNLOCK; */
-
+ /* LDBM_RUNLOCK; */
+
+ free(in.key.dptr);
return ret;
-
-}/* static Datum ldbm_get_next() */
-
-
-
+}
Datum
-ldbm_firstkey( LDBM ldbm )
+ldbm_firstkey( LDBM ldbm, LDBMCursor **dbcp )
{
-
return ldbm_get_next( ldbm, mdbm_first );
-
-}/* Datum ldbm_firstkey() */
-
-
-
+}
Datum
-ldbm_nextkey( LDBM ldbm, Datum key )
+ldbm_nextkey( LDBM ldbm, Datum key, LDBMCursor *dbcp )
{
-
/* XXX:
- * don't know if this will affect the LDAP server opertaion
+ * don't know if this will affect the LDAP server operation
* but mdbm cannot take and input key.
*/
return ldbm_get_next( ldbm, mdbm_next );
-
-}/* Datum ldbm_nextkey() */
+}
int
ldbm_errno( LDBM ldbm )
{
/* XXX: best we can do with current mdbm interface */
return( errno );
-
-}/* int ldbm_errno() */
-
-
-
+}
#elif defined( HAVE_NDBM )
/* ARGSUSED */
LDBM
-ldbm_open( char *name, int rw, int mode, int dbcachesize )
+ldbm_open( DB_ENV *env, char *name, int rw, int mode, int dbcachesize )
{
LDBM ldbm;
- LDBM_LOCK;
+ LDBM_WLOCK;
ldbm = dbm_open( name, rw, mode );
- LDBM_UNLOCK;
+ LDBM_WUNLOCK;
return( ldbm );
}
void
ldbm_close( LDBM ldbm )
{
- LDBM_LOCK;
+ LDBM_WLOCK;
dbm_close( ldbm );
- LDBM_UNLOCK;
+ LDBM_WUNLOCK;
}
/* ARGSUSED */
{
Datum d;
- LDBM_LOCK;
+ LDBM_RLOCK;
d = ldbm_datum_dup( ldbm, dbm_fetch( ldbm, key ) );
- LDBM_UNLOCK;
+ LDBM_RUNLOCK;
return d;
}
{
int rc;
- LDBM_LOCK;
+ LDBM_WLOCK;
rc = dbm_store( ldbm, key, data, flags );
- LDBM_UNLOCK;
+ LDBM_WUNLOCK;
return rc;
}
{
int rc;
- LDBM_LOCK;
+ LDBM_WLOCK;
rc = dbm_delete( ldbm, key );
- LDBM_UNLOCK;
+ LDBM_WUNLOCK;
return rc;
}
Datum
-ldbm_firstkey( LDBM ldbm )
+ldbm_firstkey( LDBM ldbm, LDBMCursor **dbcp )
{
Datum d;
- LDBM_LOCK;
+ LDBM_RLOCK;
d = dbm_firstkey( ldbm );
- LDBM_UNLOCK;
+ LDBM_RUNLOCK;
return d;
}
Datum
-ldbm_nextkey( LDBM ldbm, Datum key )
+ldbm_nextkey( LDBM ldbm, Datum key, LDBMCursor *dbcp )
{
Datum d;
- LDBM_LOCK;
+ LDBM_RLOCK;
d = dbm_nextkey( ldbm );
- LDBM_UNLOCK;
+ LDBM_RUNLOCK;
return d;
}
{
int err;
- LDBM_LOCK;
+ LDBM_WLOCK;
err = dbm_error( ldbm );
- LDBM_UNLOCK;
+ LDBM_WUNLOCK;
return err;
}
projects / openldap / blobdiff