WL#5030: Split and remove mysql_priv.h

This patch:

- Moves all definitions from the mysql_priv.h file into
  header files for the component where the variable is
  defined
- Creates header files if the component lacks one
- Eliminates all include directives from mysql_priv.h
- Eliminates all circular include cycles
- Rename time.cc to sql_time.cc
- Rename mysql_priv.h to sql_priv.h

sql/sql_time.h

@@ -0,0 +1,101 @@
+/* Copyright 2006-2008 MySQL AB, 2008-2009 Sun Microsystems, Inc.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; version 2 of the License.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA */
+
+#ifndef SQL_TIME_INCLUDED
+#define SQL_TIME_INCLUDED
+
+#include "my_global.h"                          /* ulong */
+#include "my_time.h"
+#include "mysql_time.h"                         /* timestamp_type */
+#include "sql_error.h"                          /* MYSQL_ERROR */
+#include "structs.h"                            /* INTERVAL */
+
+typedef enum enum_mysql_timestamp_type timestamp_type;
+typedef struct st_date_time_format DATE_TIME_FORMAT;
+typedef struct st_known_date_time_format KNOWN_DATE_TIME_FORMAT;
+
+/* Flags for calc_week() function.  */
+#define WEEK_MONDAY_FIRST    1
+#define WEEK_YEAR            2
+#define WEEK_FIRST_WEEKDAY   4
+
+ulong convert_period_to_month(ulong period);
+ulong convert_month_to_period(ulong month);
+void get_date_from_daynr(long daynr,uint *year, uint *month, uint *day);
+my_time_t TIME_to_timestamp(THD *thd, const MYSQL_TIME *t, my_bool *not_exist);
+bool str_to_time_with_warn(CHARSET_INFO *cs, const char *str, uint length,
+                           MYSQL_TIME *l_time);
+timestamp_type str_to_datetime_with_warn(CHARSET_INFO *cs, const char *str,
+                                         uint length, MYSQL_TIME *l_time,
+                                         uint flags);
+void make_truncated_value_warning(THD *thd,
+                                  MYSQL_ERROR::enum_warning_level level,
+                                  const char *str_val, uint str_length,
+                                  timestamp_type time_type,
+                                  const char *field_name);
+extern DATE_TIME_FORMAT *date_time_format_make(timestamp_type format_type,
+					       const char *format_str,
+					       uint format_length);
+extern DATE_TIME_FORMAT *date_time_format_copy(THD *thd,
+					       DATE_TIME_FORMAT *format);
+const char *get_date_time_format_str(KNOWN_DATE_TIME_FORMAT *format,
+				     timestamp_type type);
+void make_date(const DATE_TIME_FORMAT *format, const MYSQL_TIME *l_time,
+               String *str);
+void make_time(const DATE_TIME_FORMAT *format, const MYSQL_TIME *l_time,
+               String *str);
+void make_datetime(const DATE_TIME_FORMAT *format, const MYSQL_TIME *l_time,
+                   String *str);
+
+/* MYSQL_TIME operations */
+bool date_add_interval(MYSQL_TIME *ltime, interval_type int_type,
+                       INTERVAL interval);
+bool calc_time_diff(MYSQL_TIME *l_time1, MYSQL_TIME *l_time2, int l_sign,
+                    longlong *seconds_out, long *microseconds_out);
+int my_time_compare(MYSQL_TIME *a, MYSQL_TIME *b);
+void localtime_to_TIME(MYSQL_TIME *to, struct tm *from);
+void calc_time_from_sec(MYSQL_TIME *to, long seconds, long microseconds);
+uint calc_week(MYSQL_TIME *l_time, uint week_behaviour, uint *year);
+
+int calc_weekday(long daynr,bool sunday_first_day_of_week);
+bool parse_date_time_format(timestamp_type format_type, 
+                            const char *format, uint format_length,
+                            DATE_TIME_FORMAT *date_time_format);
+/* Character set-aware version of str_to_time() */
+bool str_to_time(CHARSET_INFO *cs, const char *str,uint length,
+                 MYSQL_TIME *l_time, int *warning);
+/* Character set-aware version of str_to_datetime() */
+timestamp_type str_to_datetime(CHARSET_INFO *cs,
+                               const char *str, uint length,
+                               MYSQL_TIME *l_time, uint flags, int *was_cut);
+
+/* convenience wrapper */
+inline bool parse_date_time_format(timestamp_type format_type, 
+                                   DATE_TIME_FORMAT *date_time_format)
+{
+  return parse_date_time_format(format_type,
+                                date_time_format->format.str,
+                                date_time_format->format.length,
+                                date_time_format);
+}
+
+
+extern DATE_TIME_FORMAT global_date_format;
+extern DATE_TIME_FORMAT global_datetime_format;
+extern DATE_TIME_FORMAT global_time_format;
+extern KNOWN_DATE_TIME_FORMAT known_date_time_formats[];
+extern LEX_STRING interval_type_to_name[];
+
+#endif /* SQL_TIME_INCLUDED */