Merge with 4.1

BitKeeper/etc/ignore:
  auto-union
Build-tools/Do-compile:
  Auto merged
client/mysqladmin.cc:
  Auto merged
heap/hp_create.c:
  Auto merged
heap/hp_write.c:
  Auto merged
include/my_sys.h:
  Auto merged
innobase/data/data0type.c:
  Auto merged
innobase/include/row0mysql.h:
  Auto merged
innobase/os/os0file.c:
  Auto merged
innobase/rem/rem0cmp.c:
  Auto merged
innobase/row/row0sel.c:
  Auto merged
innobase/srv/srv0start.c:
  Auto merged
mysql-test/r/ctype_latin1_de.result:
  Auto merged
mysql-test/r/ctype_tis620.result:
  Auto merged
mysql-test/r/ctype_ucs.result:
  Auto merged
mysql-test/r/ctype_ujis.result:
  Auto merged
mysql-test/r/ctype_utf8.result:
  Auto merged
mysql-test/r/func_gconcat.result:
  Auto merged
mysql-test/r/func_sapdb.result:
  Auto merged
mysql-test/r/show_check.result:
  Auto merged
mysql-test/r/type_float.result.es:
  Auto merged
mysql-test/r/type_float.result:
  Auto merged
mysql-test/r/type_timestamp.result:
  Auto merged
mysql-test/t/ctype_ucs.test:
  Auto merged
mysql-test/t/func_sapdb.test:
  Auto merged
mysql-test/t/show_check.test:
  Auto merged
mysql-test/t/type_float.test:
  Auto merged
mysql-test/t/type_timestamp.test:
  Auto merged
mysys/mf_iocache.c:
  Auto merged
ndb/src/kernel/vm/Configuration.cpp:
  Auto merged
scripts/mysql_install_db.sh:
  Auto merged
sql/field.cc:
  Auto merged
sql/ha_berkeley.cc:
  Auto merged
sql/ha_innodb.cc:
  Auto merged
sql/item_sum.h:
  Auto merged
sql/sql_base.cc:
  Auto merged
sql/sql_class.h:
  Auto merged
sql/sql_parse.cc:
  Auto merged
sql/sql_prepare.cc:
  Auto merged
sql/sql_table.cc:
  Auto merged
sql/sql_yacc.yy:
  Auto merged
strings/ctype-big5.c:
  Auto merged
strings/ctype-bin.c:
  Auto merged
strings/ctype-czech.c:
  Auto merged
strings/ctype-gbk.c:
  Auto merged
strings/ctype-latin1.c:
  Auto merged
strings/ctype-mb.c:
  Auto merged
strings/ctype-simple.c:
  Auto merged
strings/ctype-sjis.c:
  Auto merged
strings/ctype-tis620.c:
  Auto merged
strings/ctype-uca.c:
  Auto merged
strings/ctype-ucs2.c:
  Auto merged
strings/ctype-utf8.c:
  Auto merged
strings/ctype-win1250ch.c:
  Auto merged
configure.in:
  Use local values
mysql-test/r/ps_1general.result:
  Update results
mysql-test/t/func_gconcat.test:
  no changes
mysql-test/t/ps_1general.test:
  Use local code
ndb/src/common/util/version.c:
  Use local code
sql/filesort.cc:
  Empty line changes
sql/ha_heap.cc:
  Merge
sql/item_timefunc.cc:
  Keep local code
sql/mysql_priv.h:
  Update to 5.0
sql/sql_show.cc:
  Hand merge
support-files/mysql.spec.sh:
  No changes

1 files changed, 35 insertions, 14 deletions

diff --git a/mysys/mf_iocache.c b/mysys/mf_iocache.c
index 7466ae24675..b86e9daf92d 100644
--- a/mysys/mf_iocache.c
+++ b/mysys/mf_iocache.c
@@ -70,9 +70,40 @@ static void my_aiowait(my_aio_result *result);
 #define IO_ROUND_UP(X) (((X)+IO_SIZE-1) & ~(IO_SIZE-1))
 #define IO_ROUND_DN(X) ( (X)            & ~(IO_SIZE-1))
 
+
+/*
+  Setup internal pointers inside IO_CACHE
+
+  SYNOPSIS
+    setup_io_cache()
+    info		IO_CACHE handler
+
+  NOTES
+    This is called on automaticly on init or reinit of IO_CACHE
+    It must be called externally if one moves or copies an IO_CACHE
+    object.
+*/
+
+void setup_io_cache(IO_CACHE* info)
+{
+  /* Ensure that my_b_tell() and my_b_bytes_in_cache works */
+  if (info->type == WRITE_CACHE)
+  {
+    info->current_pos= &info->write_pos;
+    info->current_end= &info->write_end;
+  }
+  else
+  {
+    info->current_pos= &info->read_pos;
+    info->current_end= &info->read_end;
+  }
+}
+
+
 static void
-init_functions(IO_CACHE* info, enum cache_type type)
+init_functions(IO_CACHE* info)
 {
+  enum cache_type type= info->type;
   switch (type) {
   case READ_NET:
     /*
@@ -96,17 +127,7 @@ init_functions(IO_CACHE* info, enum cache_type type)
     info->write_function = _my_b_write;
   }
 
-  /* Ensure that my_b_tell() and my_b_bytes_in_cache works */
-  if (type == WRITE_CACHE)
-  {
-    info->current_pos= &info->write_pos;
-    info->current_end= &info->write_end;
-  }
-  else
-  {
-    info->current_pos= &info->read_pos;
-    info->current_end= &info->read_end;
-  }
+  setup_io_cache(info);
 }
 
 
@@ -236,7 +257,7 @@ int init_io_cache(IO_CACHE *info, File file, uint cachesize,
   info->end_of_file= end_of_file;
   info->error=0;
   info->type= type;
-  init_functions(info,type);
+  init_functions(info);
 #ifdef HAVE_AIOWAIT
   if (use_async_io && ! my_disable_async_io)
   {
@@ -358,7 +379,7 @@ my_bool reinit_io_cache(IO_CACHE *info, enum cache_type type,
   }
   info->type=type;
   info->error=0;
-  init_functions(info,type);
+  init_functions(info);
 
 #ifdef HAVE_AIOWAIT
   if (use_async_io && ! my_disable_async_io &&