Merge mysql.com:/home/my/mysql-4.0

into  mysql.com:/home/my/mysql-4.1


BitKeeper/etc/ignore:
  auto-union
include/thr_lock.h:
  Auto merged
mysys/thr_lock.c:
  Auto merged
sql/lock.cc:
  Auto merged
sql/mysql_priv.h:
  Auto merged
sql/slave.cc:
  Auto merged
sql/sql_base.cc:
  Simple merge

.bzrignore

@@ -890,6 +890,7 @@ scripts/mysqld_multi
 scripts/mysqld_safe
 scripts/mysqldumpslow
 scripts/mysqlhotcopy
+scripts/mysqlhotcopy.sh.rej
 scripts/safe_mysqld
 select_test
 sql-bench/Results-linux/ATIS-mysql_bdb-Linux_2.2.14_my_SMP_i686
@@ -1052,4 +1053,3 @@ vio/test-ssl
 vio/test-sslclient
 vio/test-sslserver
 vio/viotest-ssl
-scripts/mysqlhotcopy.sh.rej

include/thr_lock.h

@@ -111,7 +111,7 @@ void thr_unlock(THR_LOCK_DATA *data);
 int thr_multi_lock(THR_LOCK_DATA **data,uint count);
 void thr_multi_unlock(THR_LOCK_DATA **data,uint count);
 void thr_abort_locks(THR_LOCK *lock);
-bool thr_abort_locks_for_thread(THR_LOCK *lock, pthread_t thread);
+my_bool thr_abort_locks_for_thread(THR_LOCK *lock, pthread_t thread);
 void thr_print_locks(void);		/* For debugging */
 my_bool thr_upgrade_write_delay_lock(THR_LOCK_DATA *data);
 my_bool thr_reschedule_write_lock(THR_LOCK_DATA *data);

mysys/thr_lock.c

@@ -966,10 +966,10 @@ void thr_abort_locks(THR_LOCK *lock)
   This is used to abort all locks for a specific thread
 */
 
-bool thr_abort_locks_for_thread(THR_LOCK *lock, pthread_t thread)
+my_bool thr_abort_locks_for_thread(THR_LOCK *lock, pthread_t thread)
 {
   THR_LOCK_DATA *data;
-  bool found= FALSE;
+  my_bool found= FALSE;
   DBUG_ENTER("thr_abort_locks_for_thread");
 
   pthread_mutex_lock(&lock->mutex);

sql/lock.cc

@@ -335,7 +335,18 @@ void mysql_lock_abort(THD *thd, TABLE *table)
 }
 
 
-/* Abort one thread / table combination */
+/*
+  Abort one thread / table combination
+
+  SYNOPSIS
+    mysql_lock_abort_for_thread()
+    thd		Thread handler
+    table	Table that should be removed from lock queue
+
+  RETURN
+    0  Table was not locked by another thread
+    1  Table was locked by at least one other thread
+*/
 
 bool mysql_lock_abort_for_thread(THD *thd, TABLE *table)
 {
@@ -348,10 +359,9 @@ bool mysql_lock_abort_for_thread(THD *thd, TABLE *table)
   {
     for (uint i=0; i < locked->lock_count; i++)
     {
-      bool found;
-      found= thr_abort_locks_for_thread(locked->locks[i]->lock,
-	         			 table->in_use->real_id);
-      result|= found;
+      if (thr_abort_locks_for_thread(locked->locks[i]->lock,
+                                     table->in_use->real_id))
+        result= TRUE;
     }
     my_free((gptr) locked,MYF(0));
   }

sql/mysql_priv.h

@@ -763,12 +763,15 @@ bool rename_temporary_table(THD* thd, TABLE *table, const char *new_db,
 			    const char *table_name);
 void remove_db_from_cache(const char *db);
 void flush_tables();
+
+/* bits for last argument to remove_table_from_cache() */
 #define RTFC_NO_FLAG                0x0000
 #define RTFC_OWNED_BY_THD_FLAG      0x0001
 #define RTFC_WAIT_OTHER_THREAD_FLAG 0x0002
 #define RTFC_CHECK_KILLED_FLAG      0x0004
 bool remove_table_from_cache(THD *thd, const char *db, const char *table,
                              uint flags);
+
 bool close_cached_tables(THD *thd, bool wait_for_refresh, TABLE_LIST *tables);
 void copy_field_from_tmp_record(Field *field,int offset);
 int fill_record(List<Item> &fields,List<Item> &values, bool ignore_errors);

sql/slave.cc

@@ -3331,9 +3331,9 @@ err:
   mi->abort_slave = 0; // TODO: check if this is needed
   DBUG_ASSERT(thd->net.buff != 0);
   net_end(&thd->net); // destructor will not free it, because net.vio is 0
+  close_thread_tables(thd, 0);
   pthread_mutex_lock(&LOCK_thread_count);
   THD_CHECK_SENTRY(thd);
-  close_thread_tables(thd);
   delete thd;
   pthread_mutex_unlock(&LOCK_thread_count);
   pthread_cond_broadcast(&mi->stop_cond);	// tell the world we are done

sql/sql_base.cc

@@ -2927,6 +2927,9 @@ void flush_tables()
   The table will be closed (not stored in cache) by the current thread when
   close_thread_tables() is called.
 
+  PREREQUISITES
+    Lock on LOCK_open()
+
   RETURN
     0  This thread now have exclusive access to this table and no other thread
        can access the table until close_thread_tables() is called.
@@ -2942,6 +2945,7 @@ bool remove_table_from_cache(THD *thd, const char *db, const char *table_name,
   bool result=0, signalled= 0;
   DBUG_ENTER("remove_table_from_cache");
 
+
   key_length=(uint) (strmov(strmov(key,db)+1,table_name)-key)+1;
   for (;;)
   {
@@ -2998,16 +3002,13 @@ bool remove_table_from_cache(THD *thd, const char *db, const char *table_name,
     if (result && (flags & RTFC_WAIT_OTHER_THREAD_FLAG))
     {
       if (!(flags & RTFC_CHECK_KILLED_FLAG) || !thd->killed)
-      {
-        if (likely(signalled))
       {
         dropping_tables++;
+        if (likely(signalled))
           (void) pthread_cond_wait(&COND_refresh, &LOCK_open);
-          dropping_tables--;
-          continue;
-        }
         else
         {
+          struct timespec abstime;
           /*
             It can happen that another thread has opened the
             table but has not yet locked any table at all. Since
@@ -3018,11 +3019,11 @@ bool remove_table_from_cache(THD *thd, const char *db, const char *table_name,
             and then we retry another loop in the
             remove_table_from_cache routine.
           */
-          pthread_mutex_unlock(&LOCK_open);
-          my_sleep(10);
-          pthread_mutex_lock(&LOCK_open);
-          continue;
+          set_timespec(abstime, 10);
+          pthread_cond_timedwait(&COND_refresh, &LOCK_open, &abstime);
         }
+        dropping_tables--;
+        continue;
       }
     }
     break;