Merge with 4.0.13

BitKeeper/etc/ignore:
  auto-union
BitKeeper/etc/logging_ok:
  auto-union
BUILD/SETUP.sh:
  Auto merged
BitKeeper/deleted/.del-libmysql.def~29fc6d70335f1c4c:
  Auto merged
Makefile.am:
  Auto merged
acinclude.m4:
  Auto merged
BitKeeper/triggers/post-commit:
  Auto merged
Build-tools/Do-compile:
  Auto merged
VC++Files/libmysql/libmysql.dsp:
  Auto merged
VC++Files/mysql.dsw:
  Auto merged
client/mysql.cc:
  Auto merged
client/mysqlbinlog.cc:
  Auto merged
client/mysqldump.c:
  Auto merged
include/config-win.h:
  Auto merged
include/my_base.h:
  Auto merged
include/my_global.h:
  Auto merged
include/my_pthread.h:
  Auto merged
include/my_sys.h:
  Auto merged
include/violite.h:
  Auto merged
innobase/buf/buf0flu.c:
  Auto merged
innobase/buf/buf0lru.c:
  Auto merged
innobase/include/buf0buf.h:
  Auto merged
innobase/include/buf0lru.h:
  Auto merged
innobase/include/row0mysql.h:
  Auto merged
innobase/include/srv0srv.h:
  Auto merged
innobase/lock/lock0lock.c:
  Auto merged
innobase/log/log0log.c:
  Auto merged
innobase/log/log0recv.c:
  Auto merged
innobase/os/os0file.c:
  Auto merged
innobase/row/row0mysql.c:
  Auto merged
innobase/row/row0sel.c:
  Auto merged
innobase/srv/srv0srv.c:
  Auto merged
innobase/srv/srv0start.c:
  Auto merged
innobase/trx/trx0sys.c:
  Auto merged
innobase/trx/trx0trx.c:
  Auto merged
innobase/ut/ut0ut.c:
  Auto merged
myisam/ft_boolean_search.c:
  Auto merged
myisam/mi_check.c:
  Auto merged
myisam/mi_key.c:
  Auto merged
myisam/mi_open.c:
  Auto merged
myisam/mi_range.c:
  Auto merged
myisam/mi_search.c:
  Auto merged
myisam/sort.c:
  Auto merged
mysql-test/r/delete.result:
  Auto merged
mysql-test/r/fulltext.result:
  Auto merged
mysql-test/r/innodb_handler.result:
  Auto merged
mysql-test/r/join.result:
  Auto merged
mysql-test/r/join_outer.result:
  Auto merged
mysql-test/r/key.result:
  Auto merged
mysql-test/r/multi_update.result:
  Auto merged
mysql-test/r/myisam.result:
  Auto merged
mysql-test/r/query_cache.result:
  Auto merged
mysql-test/r/select.result:
  Auto merged
mysql-test/r/variables.result:
  Auto merged
mysql-test/t/alter_table.test:
  Auto merged
mysql-test/t/ctype_latin1_de.test:
  Auto merged
mysql-test/t/delete.test:
  Auto merged
mysql-test/t/fulltext.test:
  Auto merged
mysql-test/t/innodb_handler.test:
  Auto merged
mysql-test/t/join.test:
  Auto merged
mysql-test/t/join_outer.test:
  Auto merged
mysql-test/t/key.test:
  Auto merged
mysql-test/t/multi_update.test:
  Auto merged
mysql-test/t/myisam.test:
  Auto merged
mysql-test/t/query_cache.test:
  Auto merged
mysql-test/t/repair.test:
  Auto merged
mysql-test/t/select_safe.test:
  Auto merged
mysql-test/t/type_decimal.test:
  Auto merged
mysql-test/t/variables.test:
  Auto merged
mysys/default.c:
  Auto merged
mysys/my_pthread.c:
  Auto merged
scripts/mysql_fix_privilege_tables.sh:
  Auto merged
scripts/mysqld_safe.sh:
  Auto merged
sql/ha_heap.h:
  Auto merged
sql/ha_innodb.h:
  Auto merged
sql/ha_myisam.cc:
  Auto merged
sql/handler.cc:
  Auto merged
sql/handler.h:
  Auto merged
sql/init.cc:
  Auto merged
sql/item.cc:
  Auto merged
sql/item_create.cc:
  Auto merged
sql/item_strfunc.cc:
  Auto merged
sql/item_sum.cc:
  Auto merged
sql/mini_client.cc:
  Auto merged
sql/net_serv.cc:
  Auto merged
sql/opt_range.cc:
  Auto merged
sql/records.cc:
  Auto merged
sql/slave.cc:
  Auto merged
sql/sql_acl.h:
  Auto merged
sql/sql_analyse.cc:
  Auto merged
sql/sql_class.cc:
  Auto merged
sql/sql_class.h:
  Auto merged
sql/sql_list.h:
  Auto merged
sql/sql_load.cc:
  Auto merged
sql/share/czech/errmsg.txt:
  Auto merged
sql/share/danish/errmsg.txt:
  Auto merged
sql/share/dutch/errmsg.txt:
  Auto merged
sql/share/english/errmsg.txt:
  Auto merged
sql/share/estonian/errmsg.txt:
  Auto merged
sql/share/french/errmsg.txt:
  Auto merged
sql/share/greek/errmsg.txt:
  Auto merged
sql/share/hungarian/errmsg.txt:
  Auto merged
sql/share/italian/errmsg.txt:
  Auto merged
sql/share/japanese/errmsg.txt:
  Auto merged
sql/share/korean/errmsg.txt:
  Auto merged
sql/share/norwegian-ny/errmsg.txt:
  Auto merged
sql/share/norwegian/errmsg.txt:
  Auto merged
sql/share/portuguese/errmsg.txt:
  Auto merged
sql/share/romanian/errmsg.txt:
  Auto merged
sql/share/russian/errmsg.txt:
  Auto merged
sql/share/slovak/errmsg.txt:
  Auto merged
sql/share/spanish/errmsg.txt:
  Auto merged
sql/share/swedish/errmsg.txt:
  Auto merged
sql/share/ukrainian/errmsg.txt:
  Auto merged
sql/unireg.h:
  Auto merged
sql-bench/crash-me.sh:
  Auto merged
sql-bench/test-transactions.sh:
  Auto merged
strings/ctype-tis620.c:
  Auto merged
tests/grant.res:
  Auto merged
sql/log_event.cc:
  Merge with 4.0.13
  Cleaned up comment syntax

1 files changed, 35 insertions, 30 deletions

diff --git a/innobase/include/log0log.h b/innobase/include/log0log.h
index f200371de9d..4e1404b15fe 100644
--- a/innobase/include/log0log.h
+++ b/innobase/include/log0log.h
@@ -20,7 +20,7 @@ typedef struct log_group_struct	log_group_t;
 extern	ibool	log_do_write;
 extern 	ibool	log_debug_writes;
 
-/* Wait modes for log_flush_up_to */
+/* Wait modes for log_write_up_to */
 #define LOG_NO_WAIT		91
 #define LOG_WAIT_ONE_GROUP	92
 #define	LOG_WAIT_ALL_GROUPS	93
@@ -157,26 +157,21 @@ log_io_complete(
 /*============*/
 	log_group_t*	group);	/* in: log group */
 /**********************************************************
-Flushes the log files to the disk, using, for example, the Unix fsync.
-This function does the flush even if the user has set
-srv_flush_log_at_trx_commit = FALSE. */
-
-void
-log_flush_to_disk(void);
-/*===================*/
-/**********************************************************
 This function is called, e.g., when a transaction wants to commit. It checks
-that the log has been flushed to disk up to the last log entry written by the
-transaction. If there is a flush running, it waits and checks if the flush
-flushed enough. If not, starts a new flush. */
+that the log has been written to the log file up to the last log entry written
+by the transaction. If there is a flush running, it waits and checks if the
+flush flushed enough. If not, starts a new flush. */
 
 void
-log_flush_up_to(
+log_write_up_to(
 /*============*/
 	dulint	lsn,	/* in: log sequence number up to which the log should
-			be flushed, ut_dulint_max if not specified */
-	ulint	wait);	/* in: LOG_NO_WAIT, LOG_WAIT_ONE_GROUP,
+			be written, ut_dulint_max if not specified */
+	ulint	wait,	/* in: LOG_NO_WAIT, LOG_WAIT_ONE_GROUP,
 			or LOG_WAIT_ALL_GROUPS */
+	ibool	flush_to_disk);
+			/* in: TRUE if we want the written log also to be
+			flushed to disk */
 /********************************************************************
 Advances the smallest lsn for which there are unflushed dirty blocks in the
 buffer pool and also may make a new checkpoint. NOTE: this function may only
@@ -741,27 +736,37 @@ struct log_struct{
 					be advanced, it is enough that the
 					write i/o has been completed for all
 					log groups */
-	dulint		flush_lsn;	/* end lsn for the current flush */
-	ulint		flush_end_offset;/* the data in buffer has been flushed
+	dulint		write_lsn;	/* end lsn for the current running 
+					write */
+	ulint		write_end_offset;/* the data in buffer has been written
 					up to this offset when the current
-					flush ends: this field will then
+					write ends: this field will then
 					be copied to buf_next_to_write */
-	ulint		n_pending_writes;/* number of currently pending flush
-					writes */
+	dulint		current_flush_lsn;/* end lsn for the current running 
+					write + flush operation */
+	dulint		flushed_to_disk_lsn;
+					/* how far we have written the log
+					AND flushed to disk */
+	ulint		n_pending_writes;/* number of currently pending flushes
+					or writes */
+	/* NOTE on the 'flush' in names of the fields below: starting from
+	4.0.14, we separate the write of the log file and the actual fsync()
+	or other method to flush it to disk. The names below shhould really
+	be 'flush_or_write'! */
 	os_event_t	no_flush_event;	/* this event is in the reset state
-					when a flush is running; a thread
-					should wait for this without owning
-					the log mutex, but NOTE that to set or
-					reset this event, the thread MUST own
-					the log mutex! */
+					when a flush or a write is running;
+					a thread should wait for this without
+					owning the log mutex, but NOTE that
+					to set or reset this event, the
+					thread MUST own the log mutex! */
 	ibool		one_flushed;	/* during a flush, this is first FALSE
 					and becomes TRUE when one log group
-					has been flushed */
+					has been written or flushed */
 	os_event_t	one_flushed_event;/* this event is reset when the
-					flush has not yet completed for any
-					log group; e.g., this means that a
-					transaction has been committed when
-					this is set; a thread should wait
+					flush or write has not yet completed
+					for any log group; e.g., this means
+					that a transaction has been committed
+					when this is set; a thread should wait
 					for this without owning the log mutex,
 					but NOTE that to set or reset this
 					event, the thread MUST own the log