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Fix - on little-endian machines, store IDs in big-endian order. Otherwise

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BDB's default key sort algorithm sorts in the wrong order (and there's no
convenient way to select the correct algorithm). This is an incompatible
change to the database format but will improve back-ldbm's add/delete
characteristics.
This commit is contained in:
Howard Chu 2001-12-10 16:53:15 +00:00
parent e65f4c235f
commit ce76a4b01a
1 changed files with 24 additions and 0 deletions
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24
servers/slapd/back-ldbm/id2entry.c
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@ -25,6 +25,9 @@ id2entry_add( Backend *be, Entry *e )
DBCache *db;
Datum key, data;
int len, rc, flags;
#ifndef WORDS_BIGENDIAN
ID id;
#endif
ldbm_datum_init( key );
ldbm_datum_init( data );
@ -52,7 +55,12 @@ id2entry_add( Backend *be, Entry *e )
return( -1 );
}
#ifdef WORDS_BIGENDIAN
key.dptr = (char *) &e->e_id;
#else
id = htonl(e->e_id);
key.dptr = (char *) &id;
#endif
key.dsize = sizeof(ID);
ldap_pvt_thread_mutex_lock( &entry2str_mutex );
@ -85,6 +93,9 @@ id2entry_delete( Backend *be, Entry *e )
DBCache *db;
Datum key;
int rc;
#ifndef WORDS_BIGENDIAN
ID id;
#endif
#ifdef NEW_LOGGING
LDAP_LOG(( "backend", LDAP_LEVEL_ENTRY,
@ -130,7 +141,12 @@ id2entry_delete( Backend *be, Entry *e )
}
#ifdef WORDS_BIGENDIAN
key.dptr = (char *) &e->e_id;
#else
id = htonl(e->e_id);
key.dptr = (char *) &id;
#endif
key.dsize = sizeof(ID);
rc = ldbm_cache_delete( db, key );
@ -155,6 +171,9 @@ id2entry_rw( Backend *be, ID id, int rw )
DBCache *db;
Datum key, data;
Entry *e;
#ifndef WORDS_BIGENDIAN
ID id2;
#endif
ldbm_datum_init( key );
ldbm_datum_init( data );
@ -195,7 +214,12 @@ id2entry_rw( Backend *be, ID id, int rw )
return( NULL );
}
#ifdef WORDS_BIGENDIAN
key.dptr = (char *) &id;
#else
id2 = htonl(id);
key.dptr = (char *) &id2;
#endif
key.dsize = sizeof(ID);
data = ldbm_cache_fetch( db, key );