]> git.sur5r.net Git - openldap/blobdiff - servers/slapd/back-bdb/tools.c
plug leaks
[openldap] / servers / slapd / back-bdb / tools.c
index 25cbd8b55f26000092f67ad12696b46a13239a1c..167f3c7e5e2b46d198a5e2114a5cba5933a87cf3 100644 (file)
@@ -2,7 +2,7 @@
 /* $OpenLDAP$ */
 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
  *
- * Copyright 2000-2005 The OpenLDAP Foundation.
+ * Copyright 2000-2006 The OpenLDAP Foundation.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -36,14 +36,42 @@ static dn_id hbuf[HOLE_SIZE], *holes = hbuf;
 static unsigned nhmax = HOLE_SIZE;
 static unsigned nholes;
 
-static Avlnode *index_attrs, index_dummy;
+static int index_nattrs;
 
+#ifdef BDB_TOOL_IDL_CACHING
 #define bdb_tool_idl_cmp               BDB_SYMBOL(tool_idl_cmp)
 #define bdb_tool_idl_flush_one         BDB_SYMBOL(tool_idl_flush_one)
 #define bdb_tool_idl_flush             BDB_SYMBOL(tool_idl_flush)
 
 static int bdb_tool_idl_flush( BackendDB *be );
 
+#define        IDBLOCK 1024
+
+typedef struct bdb_tool_idl_cache_entry {
+       struct bdb_tool_idl_cache_entry *next;
+       ID ids[IDBLOCK];
+} bdb_tool_idl_cache_entry;
+typedef struct bdb_tool_idl_cache {
+       struct berval kstr;
+       bdb_tool_idl_cache_entry *head, *tail;
+       ID first, last;
+       int count;
+} bdb_tool_idl_cache;
+
+static bdb_tool_idl_cache_entry *bdb_tool_idl_free_list;
+#endif /* BDB_TOOL_IDL_CACHING */
+
+static ID bdb_tool_ix_id;
+static Operation *bdb_tool_ix_op;
+static int *bdb_tool_index_threads, bdb_tool_index_tcount;
+static void *bdb_tool_index_rec;
+static struct bdb_info *bdb_tool_info;
+static ldap_pvt_thread_mutex_t bdb_tool_index_mutex;
+static ldap_pvt_thread_cond_t bdb_tool_index_cond;
+
+static void * bdb_tool_index_task( void *ctx, void *ptr );
+
 int bdb_tool_entry_open(
        BackendDB *be, int mode )
 {
@@ -64,13 +92,39 @@ int bdb_tool_entry_open(
                }
        }
 
+       /* Set up for threaded slapindex */
+       if (( slapMode & (SLAP_TOOL_QUICK|SLAP_TOOL_READONLY)) == SLAP_TOOL_QUICK
+               && bdb->bi_nattrs ) {
+               if ( !bdb_tool_info ) {
+                       int i;
+                       ldap_pvt_thread_mutex_init( &bdb_tool_index_mutex );
+                       ldap_pvt_thread_cond_init( &bdb_tool_index_cond );
+                       bdb_tool_index_threads = ch_malloc( slap_tool_thread_max * sizeof( int ));
+                       bdb_tool_index_rec = ch_malloc( bdb->bi_nattrs * sizeof( IndexRec ));
+                       bdb_tool_index_tcount = slap_tool_thread_max - 1;
+                       for (i=1; i<slap_tool_thread_max; i++) {
+                               int *ptr = ch_malloc( sizeof( int ));
+                               *ptr = i;
+                               ldap_pvt_thread_pool_submit( &connection_pool,
+                                       bdb_tool_index_task, ptr );
+                       }
+               }
+               bdb_tool_info = bdb;
+       }
+
        return 0;
 }
 
 int bdb_tool_entry_close(
        BackendDB *be )
 {
-       assert( be != NULL );
+       if ( bdb_tool_info ) {
+               slapd_shutdown = 1;
+               ldap_pvt_thread_mutex_lock( &bdb_tool_index_mutex );
+               bdb_tool_index_tcount = slap_tool_thread_max - 1;
+               ldap_pvt_thread_cond_broadcast( &bdb_tool_index_cond );
+               ldap_pvt_thread_mutex_unlock( &bdb_tool_index_mutex );
+       }
 
        if( key.data ) {
                ch_free( key.data );
@@ -86,7 +140,9 @@ int bdb_tool_entry_close(
                cursor = NULL;
        }
 
+#ifdef BDB_TOOL_IDL_CACHING
        bdb_tool_idl_flush( be );
+#endif
 
        if( nholes ) {
                unsigned i;
@@ -101,8 +157,6 @@ int bdb_tool_entry_close(
        return 0;
 }
 
-static int bdb_reindex_cmp(const void *a, const void *b) { return 0; }
-
 ID bdb_tool_entry_next(
        BackendDB *be )
 {
@@ -120,14 +174,13 @@ ID bdb_tool_entry_next(
                /* If we're doing linear indexing and there are more attrs to
                 * index, and we're at the end of the database, start over.
                 */
-               if ( bdb->bi_attrs == &index_dummy ) {
-                       if ( index_attrs && rc == DB_NOTFOUND ) {
-                               /* optional - do a checkpoint here? */
-                               index_dummy.avl_data = avl_delete(&index_attrs, NULL, bdb_reindex_cmp);
-                               rc = cursor->c_get( cursor, &key, &data, DB_FIRST );
-                       }
+               if ( index_nattrs && rc == DB_NOTFOUND ) {
+                       /* optional - do a checkpoint here? */
+                       bdb_attr_info_free( bdb->bi_attrs[0] );
+                       bdb->bi_attrs[0] = bdb->bi_attrs[index_nattrs];
+                       index_nattrs--;
+                       rc = cursor->c_get( cursor, &key, &data, DB_FIRST );
                        if ( rc ) {
-                               bdb->bi_attrs = NULL;
                                return NOID;
                        }
                } else {
@@ -214,7 +267,7 @@ Entry* bdb_tool_entry_get( BackendDB *be, ID id )
                e->e_id = id;
        }
 #ifdef BDB_HIER
-       {
+       if ( slapMode & SLAP_TOOL_READONLY ) {
                EntryInfo *ei = NULL;
                Operation op = {0};
                Opheader ohdr = {0};
@@ -330,6 +383,60 @@ static int bdb_tool_next_id(
        return rc;
 }
 
+static int
+bdb_tool_index_add(
+       Operation *op,
+       DB_TXN *txn,
+       Entry *e )
+{
+       struct bdb_info *bdb = (struct bdb_info *) op->o_bd->be_private;
+
+       if ( slapMode & SLAP_TOOL_QUICK ) {
+               IndexRec *ir;
+               int i, rc;
+               Attribute *a;
+               
+               ir = bdb_tool_index_rec;
+               memset(ir, 0, bdb->bi_nattrs * sizeof( IndexRec ));
+
+               for ( a = e->e_attrs; a != NULL; a = a->a_next ) {
+                       rc = bdb_index_recset( bdb, a, a->a_desc->ad_type, 
+                               &a->a_desc->ad_tags, ir );
+                       if ( rc )
+                               return rc;
+               }
+               bdb_tool_ix_id = e->e_id;
+               bdb_tool_ix_op = op;
+               ldap_pvt_thread_mutex_lock( &bdb_tool_index_mutex );
+               /* Wait for all threads to be ready */
+               while ( bdb_tool_index_tcount ) {
+                       ldap_pvt_thread_mutex_unlock( &bdb_tool_index_mutex );
+                       ldap_pvt_thread_yield();
+                       ldap_pvt_thread_mutex_lock( &bdb_tool_index_mutex );
+               }
+               for ( i=1; i<slap_tool_thread_max; i++ )
+                       bdb_tool_index_threads[i] = LDAP_BUSY;
+               bdb_tool_index_tcount = slap_tool_thread_max - 1;
+               ldap_pvt_thread_cond_broadcast( &bdb_tool_index_cond );
+               ldap_pvt_thread_mutex_unlock( &bdb_tool_index_mutex );
+               rc = bdb_index_recrun( op, bdb, ir, e->e_id, 0 );
+               if ( rc )
+                       return rc;
+               for ( i=1; i<slap_tool_thread_max; i++ ) {
+                       if ( bdb_tool_index_threads[i] == LDAP_BUSY ) {
+                               ldap_pvt_thread_yield();
+                               i--;
+                               continue;
+                       }
+                       if ( bdb_tool_index_threads[i] )
+                               return bdb_tool_index_threads[i];
+               }
+               return 0;
+       } else {
+               return bdb_index_entry_add( op, txn, e );
+       }
+}
+
 ID bdb_tool_entry_put(
        BackendDB *be,
        Entry *e,
@@ -376,11 +483,11 @@ ID bdb_tool_entry_put(
                goto done;
        }
 
-       /* id2entry index */
-       rc = bdb_id2entry_add( be, tid, e );
+       if ( !bdb->bi_linear_index )
+               rc = bdb_tool_index_add( &op, tid, e );
        if( rc != 0 ) {
                snprintf( text->bv_val, text->bv_len,
-                               "id2entry_add failed: %s (%d)",
+                               "index_entry_add failed: %s (%d)",
                                db_strerror(rc), rc );
                Debug( LDAP_DEBUG_ANY,
                        "=> " LDAP_XSTRING(bdb_tool_entry_put) ": %s\n",
@@ -388,11 +495,11 @@ ID bdb_tool_entry_put(
                goto done;
        }
 
-       if ( !bdb->bi_linear_index )
-               rc = bdb_index_entry_add( &op, tid, e );
+       /* id2entry index */
+       rc = bdb_id2entry_add( be, tid, e );
        if( rc != 0 ) {
                snprintf( text->bv_val, text->bv_len,
-                               "index_entry_add failed: %s (%d)",
+                               "id2entry_add failed: %s (%d)",
                                db_strerror(rc), rc );
                Debug( LDAP_DEBUG_ANY,
                        "=> " LDAP_XSTRING(bdb_tool_entry_put) ": %s\n",
@@ -454,10 +561,9 @@ int bdb_tool_entry_reindex(
        }
 
        /* Get the first attribute to index */
-       if (bi->bi_linear_index && !index_attrs && bi->bi_attrs != &index_dummy) {
-               index_attrs = bi->bi_attrs;
-               bi->bi_attrs = &index_dummy;
-               index_dummy.avl_data = avl_delete(&index_attrs, NULL, bdb_reindex_cmp);
+       if (bi->bi_linear_index && !index_nattrs) {
+               index_nattrs = bi->bi_nattrs - 1;
+               bi->bi_nattrs = 1;
        }
 
        e = bdb_tool_entry_get( be, id );
@@ -497,7 +603,7 @@ int bdb_tool_entry_reindex(
        op.o_tmpmemctx = NULL;
        op.o_tmpmfuncs = &ch_mfuncs;
 
-       rc = bdb_index_entry_add( &op, tid, e );
+       rc = bdb_tool_index_add( &op, tid, e );
 
 done:
        if( rc == 0 ) {
@@ -582,33 +688,6 @@ ID bdb_tool_entry_modify(
                goto done;
        }
 
-#if 0
-       /* FIXME: this is bogus, we don't have the old values to delete
-        * from the index because the given entry has already been modified.
-        */
-       rc = bdb_index_entry_del( &op, tid, e );
-       if( rc != 0 ) {
-               snprintf( text->bv_val, text->bv_len,
-                               "index_entry_del failed: %s (%d)",
-                               db_strerror(rc), rc );
-               Debug( LDAP_DEBUG_ANY,
-                       "=> " LDAP_XSTRING(bdb_tool_entry_modify) ": %s\n",
-                       text->bv_val, 0, 0 );
-               goto done;
-       }
-#endif
-
-       rc = bdb_index_entry_add( &op, tid, e );
-       if( rc != 0 ) {
-               snprintf( text->bv_val, text->bv_len,
-                               "index_entry_add failed: %s (%d)",
-                               db_strerror(rc), rc );
-               Debug( LDAP_DEBUG_ANY,
-                       "=> " LDAP_XSTRING(bdb_tool_entry_modify) ": %s\n",
-                       text->bv_val, 0, 0 );
-               goto done;
-       }
-
 done:
        if( rc == 0 ) {
                if (! (slapMode & SLAP_TOOL_QUICK)) {
@@ -640,22 +719,7 @@ done:
        return e->e_id;
 }
 
-#define        IDBLOCK 1024
-
-typedef struct bdb_tool_idl_cache_entry {
-       struct bdb_tool_idl_cache_entry *next;
-       ID ids[IDBLOCK];
-} bdb_tool_idl_cache_entry;
-
-typedef struct bdb_tool_idl_cache {
-       struct berval kstr;
-       bdb_tool_idl_cache_entry *head, *tail;
-       ID first, last;
-       int count;
-} bdb_tool_idl_cache;
-
-static bdb_tool_idl_cache_entry *bdb_tool_idl_free_list;
-
+#ifdef BDB_TOOL_IDL_CACHING
 static int
 bdb_tool_idl_cmp( const void *v1, const void *v2 )
 {
@@ -671,12 +735,18 @@ bdb_tool_idl_flush_one( void *v1, void *arg )
 {
        bdb_tool_idl_cache *ic = v1;
        DB *db = arg;
+       struct bdb_info *bdb = bdb_tool_info;
        bdb_tool_idl_cache_entry *ice;
        DBC *curs;
        DBT key, data;
        int i, rc;
        ID id, nid;
 
+       /* Freshly allocated, ignore it */
+       if ( !ic->head && ic->count <= BDB_IDL_DB_SIZE ) {
+               return 0;
+       }
+
        rc = db->cursor( db, NULL, &curs, 0 );
        if ( rc )
                return -1;
@@ -692,7 +762,7 @@ bdb_tool_idl_flush_one( void *v1, void *arg )
 
        rc = curs->c_get( curs, &key, &data, DB_SET );
        /* If key already exists and we're writing a range... */
-       if ( rc == 0 && ic->head == NULL ) {
+       if ( rc == 0 && ic->count > BDB_IDL_DB_SIZE ) {
                /* If it's not currently a range, must delete old info */
                if ( nid ) {
                        /* Skip lo */
@@ -718,7 +788,7 @@ bdb_tool_idl_flush_one( void *v1, void *arg )
                rc = 0;
        } else if ( rc && rc != DB_NOTFOUND ) {
                rc = -1;
-       } else if ( ic->head == NULL ) {
+       } else if ( ic->count > BDB_IDL_DB_SIZE ) {
                /* range, didn't exist before */
                nid = 0;
                rc = curs->c_put( curs, &key, &data, DB_KEYLAST );
@@ -734,11 +804,19 @@ bdb_tool_idl_flush_one( void *v1, void *arg )
                        rc = -1;
                }
        } else {
+               int n;
+
                /* Just a normal write */
                rc = 0;
-               for ( ice = ic->head; ice; ice = ic->head ) {
-                       int end = ice->next ? IDBLOCK : (ic->count & (IDBLOCK-1));
-                       ic->head = ice->next;
+               for ( ice = ic->head, n=0; ice; ice = ice->next, n++ ) {
+                       int end;
+                       if ( ice->next ) {
+                               end = IDBLOCK;
+                       } else {
+                               end = ic->count & (IDBLOCK-1);
+                               if ( !end )
+                                       end = IDBLOCK;
+                       }
                        for ( i=0; i<end; i++ ) {
                                if ( !ice->ids[i] ) continue;
                                BDB_ID2DISK( ice->ids[i], &nid );
@@ -752,19 +830,43 @@ bdb_tool_idl_flush_one( void *v1, void *arg )
                                        break;
                                }
                        }
-                       ice->next = bdb_tool_idl_free_list;
-                       bdb_tool_idl_free_list = ice;
                        if ( rc ) {
                                rc = -1;
                                break;
                        }
                }
+               if ( ic->head ) {
+                       ldap_pvt_thread_mutex_lock( &bdb->bi_idl_tree_lrulock );
+                       ic->tail->next = bdb_tool_idl_free_list;
+                       bdb_tool_idl_free_list = ic->head;
+                       bdb->bi_idl_cache_size -= n;
+                       ldap_pvt_thread_mutex_unlock( &bdb->bi_idl_tree_lrulock );
+               }
+       }
+       if ( ic != db->app_private ) {
+               ch_free( ic );
+       } else {
+               ic->head = ic->tail = NULL;
        }
-       ch_free( ic );
        curs->c_close( curs );
        return rc;
 }
 
+static int
+bdb_tool_idl_flush_db( DB *db, bdb_tool_idl_cache *ic )
+{
+       Avlnode *root = db->app_private;
+       int rc;
+
+       db->app_private = ic;
+       rc = avl_apply( root, bdb_tool_idl_flush_one, db, -1, AVL_INORDER );
+       avl_free( root, NULL );
+       db->app_private = NULL;
+       if ( rc != -1 )
+               rc = 0;
+       return rc;
+}
+
 static int
 bdb_tool_idl_flush( BackendDB *be )
 {
@@ -776,15 +878,13 @@ bdb_tool_idl_flush( BackendDB *be )
        for ( i=BDB_NDB; i < bdb->bi_ndatabases; i++ ) {
                db = bdb->bi_databases[i]->bdi_db;
                if ( !db->app_private ) continue;
-               rc = avl_apply( db->app_private, bdb_tool_idl_flush_one, db, -1,
-                       AVL_INORDER );
-               avl_free( db->app_private, NULL );
-               db->app_private = NULL;
-               if ( rc == -1 ) break;
-               rc = 0;
+               rc = bdb_tool_idl_flush_db( db, NULL );
+               if ( rc )
+                       break;
        }
-       if ( !rc )
+       if ( !rc ) {
                bdb->bi_idl_cache_size = 0;
+       }
        return rc;
 }
 
@@ -798,17 +898,14 @@ int bdb_tool_idl_add(
        struct bdb_info *bdb = (struct bdb_info *) be->be_private;
        bdb_tool_idl_cache *ic, itmp;
        bdb_tool_idl_cache_entry *ice;
-       Avlnode *root;
        int rc;
 
        if ( !bdb->bi_idl_cache_max_size )
                return bdb_idl_insert_key( be, db, txn, key, id );
 
-       root = db->app_private;
-
        DBT2bv( key, &itmp.kstr );
 
-       ic = avl_find( root, &itmp, bdb_tool_idl_cmp );
+       ic = avl_find( (Avlnode *)db->app_private, &itmp, bdb_tool_idl_cmp );
 
        /* No entry yet, create one */
        if ( !ic ) {
@@ -824,8 +921,8 @@ int bdb_tool_idl_add(
                ic->head = ic->tail = NULL;
                ic->last = 0;
                ic->count = 0;
-               avl_insert( &root, ic, bdb_tool_idl_cmp, avl_dup_error );
-               db->app_private = root;
+               avl_insert( (Avlnode **)&db->app_private, ic, bdb_tool_idl_cmp,
+                       avl_dup_error );
 
                /* load existing key count here */
                rc = db->cursor( db, NULL, &curs, 0 );
@@ -854,11 +951,16 @@ int bdb_tool_idl_add(
                return 0;
        /* Are we at the limit, and converting to a range? */
        } else if ( ic->count == BDB_IDL_DB_SIZE ) {
-               for (ice = ic->head; ice; ice = ice->next ) {
-                       bdb->bi_idl_cache_size--;
+               int n;
+               for ( ice = ic->head, n=0; ice; ice = ice->next, n++ )
+                       /* counting */ ;
+               if ( n ) {
+                       ldap_pvt_thread_mutex_lock( &bdb->bi_idl_tree_lrulock );
+                       ic->tail->next = bdb_tool_idl_free_list;
+                       bdb_tool_idl_free_list = ic->head;
+                       bdb->bi_idl_cache_size -= n;
+                       ldap_pvt_thread_mutex_unlock( &bdb->bi_idl_tree_lrulock );
                }
-               ic->tail->next = bdb_tool_idl_free_list;
-               bdb_tool_idl_free_list = ic->head;
                ic->head = ic->tail = NULL;
                ic->last = id;
                ic->count++;
@@ -866,10 +968,24 @@ int bdb_tool_idl_add(
        }
        /* No free block, create that too */
        if ( !ic->tail || ( ic->count & (IDBLOCK-1)) == 0) {
+               ice = NULL;
+               ldap_pvt_thread_mutex_lock( &bdb->bi_idl_tree_lrulock );
+               if ( bdb->bi_idl_cache_size >= bdb->bi_idl_cache_max_size ) {
+                       ldap_pvt_thread_mutex_unlock( &bdb->bi_idl_tree_lrulock );
+                       rc = bdb_tool_idl_flush_db( db, ic );
+                       if ( rc )
+                               return rc;
+                       avl_insert( (Avlnode **)&db->app_private, ic, bdb_tool_idl_cmp,
+                               avl_dup_error );
+                       ldap_pvt_thread_mutex_lock( &bdb->bi_idl_tree_lrulock );
+               }
+               bdb->bi_idl_cache_size++;
                if ( bdb_tool_idl_free_list ) {
                        ice = bdb_tool_idl_free_list;
                        bdb_tool_idl_free_list = ice->next;
-               } else {
+               }
+               ldap_pvt_thread_mutex_unlock( &bdb->bi_idl_tree_lrulock );
+               if ( !ice ) {
                        ice = ch_malloc( sizeof( bdb_tool_idl_cache_entry ));
                }
                memset( ice, 0, sizeof( *ice ));
@@ -879,7 +995,6 @@ int bdb_tool_idl_add(
                        ic->tail->next = ice;
                }
                ic->tail = ice;
-               bdb->bi_idl_cache_size++;
                if ( !ic->count )
                        ic->first = id;
        }
@@ -887,10 +1002,28 @@ int bdb_tool_idl_add(
        ice->ids[ ic->count & (IDBLOCK-1) ] = id;
        ic->count++;
 
-       rc = 0;
-       /* Check for flush */
-       if ( bdb->bi_idl_cache_size > bdb->bi_idl_cache_max_size ) {
-               rc = bdb_tool_idl_flush( be );
+       return 0;
+}
+#endif
+
+static void *
+bdb_tool_index_task( void *ctx, void *ptr )
+{
+       int base = *(int *)ptr;
+
+       free( ptr );
+       while ( 1 ) {
+               ldap_pvt_thread_mutex_lock( &bdb_tool_index_mutex );
+               bdb_tool_index_tcount--;
+               ldap_pvt_thread_cond_wait( &bdb_tool_index_cond,
+                       &bdb_tool_index_mutex );
+               ldap_pvt_thread_mutex_unlock( &bdb_tool_index_mutex );
+               if ( slapd_shutdown )
+                       break;
+
+               bdb_tool_index_threads[base] = bdb_index_recrun( bdb_tool_ix_op,
+                       bdb_tool_info, bdb_tool_index_rec, bdb_tool_ix_id, base );
        }
-       return rc;
+
+       return NULL;
 }