work to enable reading 3.23 logs - not yet finished

moved fail-safe replication routines from sql_repl.cc to repl_failsafe.cc
write start event only in the first log


client/mysqlbinlog.cc:
  work to enable reading 3.23 logs
libmysql/Makefile.shared:
  added mf_iocache2 to libmysqlclient - needed for mysqlbinlog
mysql-test/mysql-test-run.sh:
  added --start-and-exit
mysql-test/r/rpl000002.result:
  result clean-up
mysql-test/r/rpl000016.result:
  result update
mysql-test/r/rpl_log.result:
  result update
mysql-test/t/rpl000016.test:
  test cleanup
mysys/mf_iocache.c:
  fixed new bug
sql/log.cc:
  write start event only on server start or after reset master
sql/log_event.cc:
  work to enable reading 3.23 log format
sql/log_event.h:
  work to enable reading 3.23 format
sql/repl_failsafe.cc:
  code restructuring
sql/repl_failsafe.h:
  re-organized code
sql/slave.cc:
  check master version
sql/slave.h:
  old_format member
sql/sql_class.h:
  allow user to specify io cache type
  need_start_event member to allow writing start event only in the first log
sql/sql_parse.cc:
  code re-organization
sql/sql_repl.cc:
  code reorganization
sql/sql_repl.h:
  reorganized code

1 files changed, 5 insertions, 2 deletions

diff --git a/sql/sql_class.h b/sql/sql_class.h
index 53e20b3b6d2..698a90c1a28 100644
--- a/sql/sql_class.h
+++ b/sql/sql_class.h
@@ -72,15 +72,18 @@ class MYSQL_LOG {
   // we should not try to rotate it or write any rotation events
   // the user should use FLUSH MASTER instead of FLUSH LOGS for
   // purging
-
+  enum cache_type io_cache_type;
+  bool need_start_event;
   friend class Log_event;
 
 public:
   MYSQL_LOG();
   ~MYSQL_LOG();
   pthread_mutex_t* get_log_lock() { return &LOCK_log; }
+  void set_need_start_event() { need_start_event = 1; }
   void set_index_file_name(const char* index_file_name = 0);
-  void init(enum_log_type log_type_arg);
+  void init(enum_log_type log_type_arg,
+	    enum cache_type io_cache_type_arg = WRITE_CACHE);
   void open(const char *log_name,enum_log_type log_type,
 	    const char *new_name=0);
   void new_file(bool inside_mutex = 0);