Adding upstream version 1:10.11.6.upstream/1%10.11.6upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 93 insertions, 0 deletions

diff --git a/sql/tztime.h b/sql/tztime.h
new file mode 100644
index 00000000..6d8af62e
--- /dev/null
+++ b/sql/tztime.h
@@ -0,0 +1,93 @@
+#ifndef TZTIME_INCLUDED
+#define TZTIME_INCLUDED
+
+/* Copyright (c) 2004, 2010, Oracle and/or its affiliates. All rights reserved.
+
+   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 02110-1335  USA */
+
+
+#ifdef USE_PRAGMA_INTERFACE
+#pragma interface			/* gcc class interface */
+#endif
+
+#include "my_time.h"                            /* my_time_t */
+#include "mysql_time.h"                         /* MYSQL_TIME */
+#include "sql_list.h"                           /* Sql_alloc */
+#include "sql_string.h"                         /* String */
+
+class THD;
+
+#if !defined(TESTTIME) && !defined(TZINFO2SQL)
+
+class THD;
+
+/**
+  This class represents abstract time zone and provides 
+  basic interface for MYSQL_TIME <-> my_time_t conversion.
+  Actual time zones which are specified by DB, or via offset 
+  or use system functions are its descendants.
+*/
+class Time_zone: public Sql_alloc 
+{
+public:
+  Time_zone() = default;                              /* Remove gcc warning */
+  /**
+    Converts local time in broken down MYSQL_TIME representation to 
+    my_time_t (UTC seconds since Epoch) represenation.
+    Returns 0 in case of error. May set error_code to ER_WARN_DATA_OUT_OF_RANGE
+    or ER_WARN_INVALID_TIMESTAMP, see TIME_to_timestamp())
+  */
+  virtual my_time_t TIME_to_gmt_sec(const MYSQL_TIME *t, 
+                                    uint *error_code) const = 0;
+  /**
+    Converts time in my_time_t representation to local time in
+    broken down MYSQL_TIME representation.
+  */
+  virtual void   gmt_sec_to_TIME(MYSQL_TIME *tmp, my_time_t t) const = 0;
+  /**
+    Because of constness of String returned by get_name() time zone name 
+    have to be already zeroended to be able to use String::ptr() instead
+    of c_ptr().
+  */
+  virtual const String * get_name() const = 0;
+
+  /** 
+    We need this only for surpressing warnings, objects of this type are
+    allocated on MEM_ROOT and should not require destruction.
+  */
+  virtual ~Time_zone() = default;
+
+protected:
+  static inline void adjust_leap_second(MYSQL_TIME *t);
+};
+
+extern Time_zone * my_tz_UTC;
+extern MYSQL_PLUGIN_IMPORT Time_zone * my_tz_SYSTEM;
+extern Time_zone * my_tz_OFFSET0;
+extern Time_zone * my_tz_find(THD *thd, const String *name);
+extern my_bool     my_tz_init(THD *org_thd, const char *default_tzname, my_bool bootstrap);
+extern void        my_tz_free();
+extern my_time_t   sec_since_epoch_TIME(MYSQL_TIME *t);
+
+/**
+  Number of elements in table list produced by my_tz_get_table_list()
+  (this table list contains tables which are needed for dynamical loading
+  of time zone descriptions). Actually it is imlementation detail that
+  should not be used anywhere outside of tztime.h and tztime.cc.
+*/
+
+static const int MY_TZ_TABLES_COUNT= 4;
+
+#endif /* !defined(TESTTIME) && !defined(TZINFO2SQL) */
+#endif /* TZTIME_INCLUDED */