bk commit into 5.1 tree (jonas:1.2093) BUG#25755

[jonas]

Below is the list of changes that have just been committed into a local
5.1 repository of jonas. When jonas does a push these changes will
be propagated to the main repository and, within 24 hours after the
push, to the public repository.
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ChangeSet@stripped, 2007-01-22 17:49:14+01:00, jonas@eel.(none) +2 -0
  ndb - bug#25755
    make sure subscriber is reomved from list, when n_subscribers is decreased
    (recommit mysql-5.1-wl2325-5.0)

  storage/ndb/src/kernel/blocks/suma/Suma.cpp@stripped, 2007-01-22 17:49:11+01:00,
jonas@eel.(none) +39 -7
    ndb - bug#25755
      make sure subscriber is reomved from list, when n_subscribers is decreased

  storage/ndb/src/kernel/blocks/suma/Suma.hpp@stripped, 2007-01-22 17:49:11+01:00,
jonas@eel.(none) +1 -1
    ndb - bug#25755
      make sure subscriber is reomved from list, when n_subscribers is decreased

# This is a BitKeeper patch.  What follows are the unified diffs for the
# set of deltas contained in the patch.  The rest of the patch, the part
# that BitKeeper cares about, is below these diffs.
# User:	jonas
# Host:	eel.(none)
# Root:	/home/jonas/src/drop5

--- 1.32/storage/ndb/src/kernel/blocks/suma/Suma.cpp	2007-01-22 17:49:21 +01:00
+++ 1.33/storage/ndb/src/kernel/blocks/suma/Suma.cpp	2007-01-22 17:49:21 +01:00
@@ -1372,17 +1372,26 @@
   
   if (r)
   {
+    jam();
     // we have to wait getting tab info
     DBUG_RETURN(1);
   }
 
   if (tabPtr.p->setupTrigger(signal, *this))
   {
+    jam();
     // we have to wait for triggers to be setup
     DBUG_RETURN(1);
   }
 
-  completeOneSubscriber(signal, tabPtr, subbPtr);
+  int ret = completeOneSubscriber(signal, tabPtr, subbPtr);
+  if (ret == -1)
+  {
+    jam();
+    LocalDLList<Subscriber> subscribers(c_subscriberPool,
+					tabPtr.p->c_subscribers);
+    subscribers.release(subbPtr);
+  }
   completeInitTable(signal, tabPtr);
   DBUG_RETURN(0);
 }
@@ -1455,6 +1464,20 @@
     req->tableId = tableId;
 
     DBUG_PRINT("info",("GET_TABINFOREQ id %d", req->tableId));
+
+    if (ERROR_INSERTED(13031))
+    {
+      jam();
+      CLEAR_ERROR_INSERT_VALUE;
+      GetTabInfoRef* ref = (GetTabInfoRef*)signal->getDataPtrSend();
+      ref->tableId = tableId;
+      ref->senderData = tabPtr.i;
+      ref->errorCode = GetTabInfoRef::TableNotDefined;
+      sendSignal(reference(), GSN_GET_TABINFOREF, signal, 
+		 GetTabInfoRef::SignalLength, JBB);
+      DBUG_RETURN(1);
+    }
+
     sendSignal(DBDICT_REF, GSN_GET_TABINFOREQ, signal,
 	       GetTabInfoReq::SignalLength, JBB);
     DBUG_RETURN(1);
@@ -1468,7 +1491,7 @@
   DBUG_RETURN(0);
 }
 
-void
+int
 Suma::completeOneSubscriber(Signal *signal, TablePtr tabPtr, SubscriberPtr subbPtr)
 {
   jam();
@@ -1478,19 +1501,22 @@
       (c_startup.m_restart_server_node_id == 0 ||
        tabPtr.p->m_state != Table::DROPPED))
   {
+    jam();
     sendSubStartRef(signal,subbPtr,tabPtr.p->m_error,
 		    SubscriptionData::TableData);
     tabPtr.p->n_subscribers--;
+    DBUG_RETURN(-1);
   }
   else
   {
+    jam();
     SubscriptionPtr subPtr;
     c_subscriptions.getPtr(subPtr, subbPtr.p->m_subPtrI);
     subPtr.p->m_table_ptrI= tabPtr.i;
     sendSubStartComplete(signal,subbPtr, m_last_complete_gci + 3,
 			 SubscriptionData::TableData);
   }
-  DBUG_VOID_RETURN;
+  DBUG_RETURN(0);
 }
 
 void
@@ -1503,11 +1529,17 @@
     LocalDLList<Subscriber> subscribers(c_subscriberPool,
 					tabPtr.p->c_subscribers);
     SubscriberPtr subbPtr;
-    for(subscribers.first(subbPtr);
-	!subbPtr.isNull();
-	subscribers.next(subbPtr))
+    for(subscribers.first(subbPtr); !subbPtr.isNull();)
     {
-      completeOneSubscriber(signal, tabPtr, subbPtr);
+      jam();
+      Ptr<Subscriber> tmp = subbPtr;
+      subscribers.next(subbPtr);
+      int ret = completeOneSubscriber(signal, tabPtr, tmp);
+      if (ret == -1)
+      {
+	jam();
+	subscribers.release(tmp);
+      }
     }
   }
   DBUG_VOID_RETURN;

--- 1.9/storage/ndb/src/kernel/blocks/suma/Suma.hpp	2007-01-22 17:49:21 +01:00
+++ 1.10/storage/ndb/src/kernel/blocks/suma/Suma.hpp	2007-01-22 17:49:21 +01:00
@@ -203,7 +203,7 @@
 		SubscriberPtr subbPtr);
   int initTable(Signal *signal,Uint32 tableId, TablePtr &tabPtr);
   
-  void completeOneSubscriber(Signal* signal, TablePtr tabPtr, SubscriberPtr subbPtr);
+  int completeOneSubscriber(Signal* signal, TablePtr tabPtr, SubscriberPtr subbPtr);
   void completeAllSubscribers(Signal* signal, TablePtr tabPtr);
   void completeInitTable(Signal* signal, TablePtr tabPtr);