Merge with 5.1-microseconds

A lot of small fixes and new test cases.

client/mysqlbinlog.cc:
  Cast removed
client/mysqltest.cc:
  Added missing DBUG_RETURN
include/my_pthread.h:
  set_timespec_time_nsec() now only takes one argument
mysql-test/t/date_formats.test:
  Remove --disable_ps_protocl as now also ps supports microseconds
mysys/my_uuid.c:
  Changed to use my_interval_timer() instead of my_getsystime()
mysys/waiting_threads.c:
  Changed to use my_hrtime()
sql/field.h:
  Added bool special_const_compare() for fields that may convert values before compare (like year)
sql/field_conv.cc:
  Added test to get optimal copying of identical temporal values.
sql/item.cc:
  Return that item_int is equal if it's positive, even if unsigned flag is different.
  Fixed Item_cache_str::save_in_field() to have identical null check as other similar functions
  Added proper NULL check to Item_cache_int::save_in_field()
sql/item_cmpfunc.cc:
  Don't call convert_constant_item() if there is nothing that is worth converting.
  Simplified test when years should be converted
sql/item_sum.cc:
  Mark cache values in Item_sum_hybrid as not constants to ensure they are not replaced by other cache values in compare_datetime()
sql/item_timefunc.cc:
  Changed sec_to_time() to take a my_decimal argument to ensure we don't loose any sub seconds.
  Added Item_temporal_func::get_time() (This simplifies some things)
sql/mysql_priv.h:
  Added Lazy_string_decimal()
sql/mysqld.cc:
  Added my_decimal constants max_seconds_for_time_type, time_second_part_factor
sql/table.cc:
  Changed expr_arena to be of type CONVENTIONAL_EXECUTION to ensure that we don't loose any items that are created by fix_fields()
sql/tztime.cc:
  TIME_to_gmt_sec() now sets *in_dst_time_gap in case of errors
  This is needed to be able to detect if timestamp is 0
storage/maria/lockman.c:
  Changed from my_getsystime() to set_timespec_time_nsec()
storage/maria/ma_loghandler.c:
  Changed from my_getsystime() to my_hrtime()
storage/maria/ma_recovery.c:
  Changed from my_getsystime() to mmicrosecond_interval_timer()
storage/maria/unittest/trnman-t.c:
  Changed from my_getsystime() to mmicrosecond_interval_timer()
storage/xtradb/handler/ha_innodb.cc:
  Added support for new time,datetime and timestamp
unittest/mysys/thr_template.c:
  my_getsystime() -> my_interval_timer()
unittest/mysys/waiting_threads-t.c:
  my_getsystime() -> my_interval_timer()

1 files changed, 1 insertions, 49 deletions

diff --git a/mysys/my_init.c b/mysys/my_init.c
index e7ab9ba7a1f..356dbe6070f 100644
--- a/mysys/my_init.c
+++ b/mysys/my_init.c
@@ -102,6 +102,7 @@ my_bool my_init(void)
     DBUG_PROCESS((char*) (my_progname ? my_progname : "unknown"));
     if (!home_dir)
     {					/* Don't initialize twice */
+      my_time_init();
       my_win_init();
       if ((home_dir=getenv("HOME")) != 0)
 	home_dir=intern_filename(home_dir_buff,home_dir);
@@ -258,7 +259,6 @@ void my_debug_put_break_here(void)
 
 #ifdef __WIN__
 
-
 /*
   my_parameter_handler
   
@@ -332,54 +332,6 @@ static void my_win_init(void)
 
   _tzset();
 
-               
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-  /* The following is used by time functions */
-#define OFFSET_TO_EPOC ((__int64) 134774 * 24 * 60 * 60 * 1000 * 1000 * 10)
-#define MS 10000000
-  {
-    FILETIME ft;
-    LARGE_INTEGER li, t_cnt;
-    DBUG_ASSERT(sizeof(LARGE_INTEGER) == sizeof(query_performance_frequency));
-    if (QueryPerformanceFrequency((LARGE_INTEGER *)&query_performance_frequency) == 0)
-      query_performance_frequency= 0;
-    else
-    {
-      GetSystemTimeAsFileTime(&ft);
-      li.LowPart=  ft.dwLowDateTime;
-      li.HighPart= ft.dwHighDateTime;
-      query_performance_offset= li.QuadPart-OFFSET_TO_EPOC;
-      QueryPerformanceCounter(&t_cnt);
-      query_performance_offset-= (t_cnt.QuadPart /
-                                  query_performance_frequency * MS +
-                                  t_cnt.QuadPart %
-                                  query_performance_frequency * MS /
-                                  query_performance_frequency);
-    }
-  }
-
   {
     /*
       Open HKEY_LOCAL_MACHINE\SOFTWARE\MySQL and set any strings found