Merge mysql-5.5-bugteam -> mysql-5.5-innodb

include/my_pthread.h

@@ -48,19 +48,30 @@ typedef struct st_pthread_link {
   struct st_pthread_link *next;
 } pthread_link;
 
-typedef struct {
-  uint32 waiting;
-  CRITICAL_SECTION lock_waiting;
- 
-  enum {
-    SIGNAL= 0,
-    BROADCAST= 1,
-    MAX_EVENTS= 2
-  } EVENTS;
-
-  HANDLE events[MAX_EVENTS];
-  HANDLE broadcast_block_event;
-
+/**
+  Implementation of Windows condition variables.
+  We use native conditions on Vista and later, and fallback to own 
+  implementation on earlier OS version.
+*/
+typedef union
+{
+  /* Native condition (used on Vista and later) */
+  CONDITION_VARIABLE native_cond;
+
+  /* Own implementation (used on XP) */
+  struct
+  { 
+    uint32 waiting;
+    CRITICAL_SECTION lock_waiting;
+    enum 
+    {
+      SIGNAL= 0,
+      BROADCAST= 1,
+      MAX_EVENTS= 2
+    } EVENTS;
+    HANDLE events[MAX_EVENTS];
+    HANDLE broadcast_block_event;
+  };
 } pthread_cond_t;
 
 
@@ -679,6 +690,47 @@ extern int rw_pr_destroy(rw_pr_lock_t *);
 
 
 #ifdef NEED_MY_RW_LOCK
+
+#ifdef _WIN32
+
+/**
+  Implementation of Windows rwlock.
+
+  We use native (slim) rwlocks on Win7 and later, and fallback to  portable
+  implementation on earlier Windows.
+
+  slim rwlock are also available on Vista/WS2008, but we do not use it
+  ("trylock" APIs are missing on Vista)
+*/
+typedef union
+{
+  /* Native rwlock (is_srwlock == TRUE) */
+  struct 
+  {
+    SRWLOCK srwlock;             /* native reader writer lock */
+    BOOL have_exclusive_srwlock; /* used for unlock */
+  };
+
+  /*
+    Portable implementation (is_srwlock == FALSE)
+    Fields are identical with Unix my_rw_lock_t fields.
+  */
+  struct 
+  {
+    pthread_mutex_t lock;       /* lock for structure		*/
+    pthread_cond_t  readers;    /* waiting readers		*/
+    pthread_cond_t  writers;    /* waiting writers		*/
+    int state;                  /* -1:writer,0:free,>0:readers	*/
+    int waiters;                /* number of waiting writers	*/
+#ifdef SAFE_MUTEX
+    pthread_t  write_thread;
+#endif
+  };
+} my_rw_lock_t;
+
+
+#else /* _WIN32 */
+
 /*
   On systems which don't support native read/write locks we have
   to use own implementation.
@@ -694,6 +746,8 @@ typedef struct st_my_rw_lock_t {
 #endif
 } my_rw_lock_t;
 
+#endif /*! _WIN32 */
+
 extern int my_rw_init(my_rw_lock_t *);
 extern int my_rw_destroy(my_rw_lock_t *);
 extern int my_rw_rdlock(my_rw_lock_t *);

mysql-test/lib/mtr_report.pm

@@ -229,7 +229,8 @@ sub mtr_report_stats ($$;$) {
   # Find out how we where doing
   # ----------------------------------------------------------------------
 
-  my $tot_skiped= 0;
+  my $tot_skipped= 0;
+  my $tot_skipdetect= 0;
   my $tot_passed= 0;
   my $tot_failed= 0;
   my $tot_tests=  0;
@@ -246,8 +247,9 @@ sub mtr_report_stats ($$;$) {
     }
     elsif ( $tinfo->{'result'} eq 'MTR_RES_SKIPPED' )
     {
-      # Test was skipped
-      $tot_skiped++;
+      # Test was skipped (disabled not counted)
+      $tot_skipped++ unless $tinfo->{'disable'};
+      $tot_skipdetect++ if $tinfo->{'skip_detected_by_test'};
     }
     elsif ( $tinfo->{'result'} eq 'MTR_RES_PASSED' )
     {
@@ -376,6 +378,9 @@ sub mtr_report_stats ($$;$) {
     print "All $tot_tests tests were successful.\n\n";
   }
 
+  print "$tot_skipped tests were skipped, ".
+    "$tot_skipdetect by the test itself.\n\n" if $tot_skipped;
+
   if ( $tot_failed != 0 || $found_problems)
   {
     mtr_error("there were failing test cases") unless $dont_error;

mysql-test/mysql-test-run.pl

@@ -126,12 +126,24 @@ my $path_vardir_trace;          # unix formatted opt_vardir for trace files
 my $opt_tmpdir;                 # Path to use for tmp/ dir
 my $opt_tmpdir_pid;
 
+my $opt_start;
+my $opt_start_dirty;
+my $opt_start_exit;
+my $start_only;
+
 END {
   if ( defined $opt_tmpdir_pid and $opt_tmpdir_pid == $$ )
   {
-    # Remove the tempdir this process has created
-    mtr_verbose("Removing tmpdir '$opt_tmpdir");
-    rmtree($opt_tmpdir);
+    if (!$opt_start_exit)
+    {
+      # Remove the tempdir this process has created
+      mtr_verbose("Removing tmpdir $opt_tmpdir");
+      rmtree($opt_tmpdir);
+    }
+    else
+    {
+      mtr_warning("tmpdir $opt_tmpdir should be removed after the server has finished");
+    }
   }
 }
 
@@ -234,10 +246,6 @@ my $opt_start_timeout   = $ENV{MTR_START_TIMEOUT}    || 180; # seconds
 sub suite_timeout { return $opt_suite_timeout * 60; };
 sub check_timeout { return $opt_testcase_timeout * 6; };
 
-my $opt_start;
-my $opt_start_dirty;
-my $opt_start_exit;
-my $start_only;
 my $opt_wait_all;
 my $opt_user_args;
 my $opt_repeat= 1;
@@ -2186,6 +2194,11 @@ sub environment_setup {
   # to detect that valgrind is being used from test cases
   $ENV{'VALGRIND_TEST'}= $opt_valgrind;
 
+  # Add dir of this perl to aid mysqltest in finding perl
+  my $perldir= dirname($^X);
+  my $pathsep= ":";
+  $pathsep= ";" if IS_WINDOWS && ! IS_CYGWIN;
+  $ENV{'PATH'}= "$ENV{'PATH'}".$pathsep.$perldir;
 }
 
 
@@ -3658,6 +3671,9 @@ sub run_testcase ($) {
 	# Try to get reason from test log file
 	find_testcase_skipped_reason($tinfo);
 	mtr_report_test_skipped($tinfo);
+	# Restart if skipped due to missing perl, it may have had side effects
+	stop_all_servers($opt_shutdown_timeout)
+	  if ($tinfo->{'comment'} =~ /^perl not found/);
       }
       elsif ( $res == 65 )
       {

mysql-test/r/mysqltest.result

@@ -177,6 +177,9 @@ mysqltest: At line 1: End of line junk detected: "disconnect default # comment
 "
 mysqltest: At line 1: Extra delimiter ";" found
 mysqltest: At line 1: Extra delimiter ";" found
+mysqltest: At line 1: Spurious text after `query` expression
+mysqltest: At line 1: Spurious text after `query` expression
+mysqltest: At line 2: Spurious text after `query` expression
 mysqltest: At line 1: Missing argument(s) to 'error'
 mysqltest: At line 1: Missing argument(s) to 'error'
 mysqltest: At line 1: The sqlstate definition must start with an uppercase S
@@ -366,23 +369,24 @@ mysqltest: At line 1: Missing required argument 'sleep_delay' to command 'real_s
 mysqltest: At line 1: Invalid argument to sleep "abc"
 mysqltest: At line 1: Invalid argument to real_sleep "abc"
 1
-2
 101
-hej
-1
+-99
 mysqltest: At line 1: Missing argument to inc
 mysqltest: At line 1: The argument to inc must be a variable (start with $)
+mysqltest: At line 1: Cannot perform inc/dec on a non-numeric value
 mysqltest: At line 1: End of line junk detected: "1000"
-4
-4
+mysqltest: At line 1: Cannot perform inc/dec on a non-numeric value
+mysqltest: At line 1: Cannot perform inc/dec on a non-numeric value
+-96
+-96
 -1
--2
 99
-hej
--1
 mysqltest: At line 1: Missing argument to dec
 mysqltest: At line 1: The argument to dec must be a variable (start with $)
+mysqltest: At line 1: Cannot perform inc/dec on a non-numeric value
 mysqltest: At line 1: End of line junk detected: "1000"
+mysqltest: At line 1: Cannot perform inc/dec on a non-numeric value
+mysqltest: At line 1: Cannot perform inc/dec on a non-numeric value
 mysqltest: At line 1: Missing arguments to system, nothing to do!
 mysqltest: At line 1: Missing arguments to system, nothing to do!
 system command 'NonExistsinfComamdn 2> /dev/null' failed
@@ -449,12 +453,16 @@ mysqltest: At line 1: Missing required argument 'host' to command 'connect'
 mysqltest: At line 1: query 'connect  con2,localhost,root,,illegal_db' failed: 1049: Unknown database 'illegal_db'
 mysqltest: At line 1: Illegal argument for port: 'illegal_port'
 mysqltest: At line 1: Illegal option to connect: SMTP
-OK
-mysqltest: The test didn't produce any output
+200 connects succeeded
 mysqltest: In included file "MYSQLTEST_VARDIR/tmp/mysqltest.sql": At line 3: connection 'test_con1' not found in connection pool
 mysqltest: In included file "MYSQLTEST_VARDIR/tmp/mysqltest.sql": At line 2: Connection test_con1 already exists
 show tables;
 ERROR 3D000: No database selected
+connect  con1,localhost,root,,;
+connection default;
+connection con1;
+disconnect con1;
+connection default;
 Output from mysqltest-x.inc
 Output from mysqltest-x.inc
 Output from mysqltest-x.inc

mysql-test/suite/rpl/t/rpl_row_tbl_metadata.test

@@ -205,7 +205,7 @@ DROP TABLE `t1`;
 
 -- echo === Using mysqlbinlog to detect failure. Before the patch mysqlbinlog would find a corrupted event, thence would fail.
 
--- let $MYSQLD_DATADIR= `SELECT @@datadir`;
+-- let $MYSQLD_DATADIR= `SELECT @@datadir`
 -- exec $MYSQL_BINLOG $MYSQLD_DATADIR/master-bin.000001 > $MYSQLTEST_VARDIR/tmp/mysqlbinlog_bug42749.binlog
 -- remove_file $MYSQLTEST_VARDIR/tmp/mysqlbinlog_bug42749.binlog
 
@@ -330,7 +330,7 @@ while($ntables)
 -- echo ### assertion: check that binlog is not corrupt. Using mysqlbinlog to 
 -- echo ###            detect failure. Before the patch mysqlbinlog would find 
 -- echo ###            a corrupted event, thence would fail.
--- let $MYSQLD_DATADIR= `SELECT @@datadir`;
+-- let $MYSQLD_DATADIR= `SELECT @@datadir`
 -- exec $MYSQL_BINLOG -v --hex $MYSQLD_DATADIR/master-bin.000001 > $MYSQLTEST_VARDIR/tmp/mysqlbinlog_bug50018.binlog
 
 ## clean up

mysql-test/suite/sys_vars/t/div_precision_increment_func.test

@@ -19,7 +19,7 @@
 #                                                                              #
 ################################################################################
 
-let $save_div_precision_increment = `SELECT @@global.div_precision_increment`
+let $save_div_precision_increment = `SELECT @@global.div_precision_increment`;
  
 #SET @save_div_precision_increment = @@global.div_precision_increment;
 

mysql-test/suite/sys_vars/t/secure_file_priv.test

@@ -9,7 +9,7 @@ SHOW VARIABLES LIKE 'secure_file_priv';
 # Doing this in a portable manner is difficult but we should be able to
 # count on the depth of the directory hierarchy used. Three steps up from
 # the datadir is the 'mysql_test' directory.
---let $PROTECTED_FILE=`SELECT concat(@@datadir,'/../../../bug50373.txt')`;
+--let $PROTECTED_FILE=`SELECT concat(@@datadir,'/../../../bug50373.txt')`
 --eval SELECT * FROM t1 INTO OUTFILE '$PROTECTED_FILE';
 DELETE FROM t1;
 --eval LOAD DATA INFILE '$PROTECTED_FILE' INTO TABLE t1;

mysql-test/t/mysqltest.test

@@ -494,6 +494,32 @@ remove_file $MYSQLTEST_VARDIR/tmp/mysqltest.sql;
 --error 1
 --exec echo "--disable_query_log;" | $MYSQL_TEST 2>&1
 
+#
+# Extra text after ``
+#
+# Cannot use exec echo here as ` may or may not need to be escaped
+--write_file $MYSQLTEST_VARDIR/tmp/mysqltest.sql
+let $x= `select 1` BOO ;
+EOF
+--error 1
+--exec $MYSQL_TEST < $MYSQLTEST_VARDIR/tmp/mysqltest.sql 2>&1
+remove_file $MYSQLTEST_VARDIR/tmp/mysqltest.sql;
+--write_file $MYSQLTEST_VARDIR/tmp/mysqltest.sql
+--let $x= `select 1`;
+EOF
+--error 1
+--exec $MYSQL_TEST < $MYSQLTEST_VARDIR/tmp/mysqltest.sql 2>&1
+remove_file $MYSQLTEST_VARDIR/tmp/mysqltest.sql;
+--write_file $MYSQLTEST_VARDIR/tmp/mysqltest.sql
+# Missing ; in next line should be detected and cause failure
+let $x= `select 1`
+let $x= 2;
+echo $x;
+EOF
+--error 1
+--exec $MYSQL_TEST < $MYSQLTEST_VARDIR/tmp/mysqltest.sql 2>&1
+remove_file $MYSQLTEST_VARDIR/tmp/mysqltest.sql;
+
 
 # Allow trailing # comment
 --sleep 1 # Wait for insert delayed to be executed.
@@ -980,16 +1006,13 @@ EOF
 # ----------------------------------------------------------------------------
 # Test inc
 # ----------------------------------------------------------------------------
-inc $i;
-echo $i;
+let $i= 0;
 inc $i;
 echo $i;
 let $i=100;
 inc $i;
 echo $i;
-
-let $i=hej;
-echo $i;
+let $i= -100;
 inc $i;
 echo $i;
 
@@ -998,7 +1021,13 @@ echo $i;
 --error 1
 --exec echo "inc i;" | $MYSQL_TEST 2>&1
 --error 1
+--exec echo "inc \$i;" | $MYSQL_TEST 2>&1
+--error 1
 --exec echo "let \$i=100; inc \$i 1000; echo \$i;" | $MYSQL_TEST 2>&1
+--error 1
+--exec echo "let \$i=text; inc \$i; echo \$i;" | $MYSQL_TEST 2>&1
+--error 1
+--exec echo "let \$i=10cc; inc \$i; echo \$i;" | $MYSQL_TEST 2>&1
 
 inc $i; inc $i; inc $i; --echo $i
 echo $i;
@@ -1008,25 +1037,25 @@ echo $i;
 # Test dec
 # ----------------------------------------------------------------------------
 
-dec $d;
-echo $d;
+let $d= 0;
 dec $d;
 echo $d;
 let $d=100;
 dec $d;
 echo $d;
 
-let $d=hej;
-echo $d;
-dec $d;
-echo $d;
-
 --error 1
 --exec echo "dec;" | $MYSQL_TEST 2>&1
 --error 1
 --exec echo "dec i;" | $MYSQL_TEST 2>&1
 --error 1
+--exec echo "dec \$i;" | $MYSQL_TEST 2>&1
+--error 1
 --exec echo "let \$i=100; dec \$i 1000; echo \$i;" | $MYSQL_TEST 2>&1
+--error 1
+--exec echo "let \$i=text; dec \$i; echo \$i;" | $MYSQL_TEST 2>&1
+--error 1
+--exec echo "let \$i=10cc; dec \$i; echo \$i;" | $MYSQL_TEST 2>&1
 
 
 # ----------------------------------------------------------------------------
@@ -1439,19 +1468,6 @@ eval select "$long_rep" as x;
 --error 1
 --exec echo "connect (con1,localhost,root,,,,,SMTP POP);" | $MYSQL_TEST 2>&1
 
-# Repeat connect/disconnect
---write_file $MYSQLTEST_VARDIR/tmp/mysqltest.sql
-let $i=100;
-while ($i)
-{
-  connect (test_con1,localhost,root,,);
-  disconnect test_con1;
-  dec $i;
-}
-EOF
---exec echo "source $MYSQLTEST_VARDIR/tmp/mysqltest.sql; echo OK; exit;" | $MYSQL_TEST 2>&1
-remove_file $MYSQLTEST_VARDIR/tmp/mysqltest.sql;
-
 # Repeat connect/disconnect
 --write_file $MYSQLTEST_VARDIR/tmp/mysqltest.sql
 let $i=200;
@@ -1461,9 +1477,8 @@ while ($i)
  disconnect test_con1;
  dec $i;
 }
+echo 200 connects succeeded;
 EOF
---replace_result $MYSQLTEST_VARDIR MYSQLTEST_VARDIR
---error 1
 --exec echo "source $MYSQLTEST_VARDIR/tmp/mysqltest.sql;" | $MYSQL_TEST 2>&1
 remove_file $MYSQLTEST_VARDIR/tmp/mysqltest.sql;
 
@@ -1504,6 +1519,22 @@ show tables;
 disconnect con2;
 connection default;
 
+# Test enable_connect_log
+--enable_connect_log
+connect (con1,localhost,root,,);
+connection default;
+connection con1;
+--disable_query_log
+# These should not be logged
+connect (con2,localhost,root,,*NO-ONE*);
+connection con2;
+disconnect con2;
+connection con1;
+--enable_query_log
+disconnect con1;
+connection default;
+--disable_connect_log
+
 # ----------------------------------------------------------------------------
 # Test mysqltest arguments
 # ----------------------------------------------------------------------------

mysys/my_wincond.c

@@ -24,7 +24,108 @@
 #include <process.h>
 #include <sys/timeb.h>
 
-int pthread_cond_init(pthread_cond_t *cond, const pthread_condattr_t *attr)
+
+/*
+  Windows native condition variables. We use runtime loading / function 
+  pointers, because they are not available on XP 
+*/
+
+/* Prototypes and function pointers for condition variable functions */
+typedef VOID (WINAPI * InitializeConditionVariableProc) 
+  (PCONDITION_VARIABLE ConditionVariable);
+
+typedef BOOL (WINAPI * SleepConditionVariableCSProc)
+  (PCONDITION_VARIABLE ConditionVariable,
+  PCRITICAL_SECTION CriticalSection, 
+  DWORD dwMilliseconds);
+
+typedef VOID (WINAPI * WakeAllConditionVariableProc)
+ (PCONDITION_VARIABLE ConditionVariable);
+
+typedef VOID (WINAPI * WakeConditionVariableProc)
+  (PCONDITION_VARIABLE ConditionVariable);
+
+static InitializeConditionVariableProc my_InitializeConditionVariable;
+static SleepConditionVariableCSProc my_SleepConditionVariableCS;
+static WakeAllConditionVariableProc my_WakeAllConditionVariable;
+static WakeConditionVariableProc my_WakeConditionVariable;
+
+
+/**
+ Indicates if we have native condition variables,
+ initialized first time pthread_cond_init is called.
+*/
+
+static BOOL have_native_conditions= FALSE;
+
+
+/**
+  Check if native conditions can be used, load function pointers 
+*/
+
+static void check_native_cond_availability(void)
+{
+  HMODULE module= GetModuleHandle("kernel32");
+
+  my_InitializeConditionVariable= (InitializeConditionVariableProc)
+    GetProcAddress(module, "InitializeConditionVariable");
+  my_SleepConditionVariableCS= (SleepConditionVariableCSProc)
+    GetProcAddress(module, "SleepConditionVariableCS");
+  my_WakeAllConditionVariable= (WakeAllConditionVariableProc)
+    GetProcAddress(module, "WakeAllConditionVariable");
+  my_WakeConditionVariable= (WakeConditionVariableProc)
+    GetProcAddress(module, "WakeConditionVariable");
+
+  if (my_InitializeConditionVariable)
+    have_native_conditions= TRUE;
+}
+
+
+
+/**
+  Convert abstime to milliseconds
+*/
+
+static DWORD get_milliseconds(const struct timespec *abstime)
+{
+  long long millis; 
+  union ft64 now;
+
+  if (abstime == NULL)
+   return INFINITE;
+
+  GetSystemTimeAsFileTime(&now.ft);
+
+  /*
+    Calculate time left to abstime
+    - subtract start time from current time(values are in 100ns units)
+    - convert to millisec by dividing with 10000
+  */
+  millis= (abstime->tv.i64 - now.i64) / 10000;
+  
+  /* Don't allow the timeout to be negative */
+  if (millis < 0)
+    return 0;
+
+  /*
+    Make sure the calculated timeout does not exceed original timeout
+    value which could cause "wait for ever" if system time changes
+  */
+  if (millis > abstime->max_timeout_msec)
+    millis= abstime->max_timeout_msec;
+  
+  if (millis > UINT_MAX)
+    millis= UINT_MAX;
+
+  return (DWORD)millis;
+}
+
+
+/*
+  Old (pre-vista) implementation using events
+*/
+
+static int legacy_cond_init(pthread_cond_t *cond, const pthread_condattr_t *attr)
 {
   cond->waiting= 0;
   InitializeCriticalSection(&cond->lock_waiting);
@@ -53,7 +154,8 @@ int pthread_cond_init(pthread_cond_t *cond, const pthread_condattr_t *attr)
   return 0;
 }
 
-int pthread_cond_destroy(pthread_cond_t *cond)
+
+static int legacy_cond_destroy(pthread_cond_t *cond)
 {
   DeleteCriticalSection(&cond->lock_waiting);
 
@@ -65,48 +167,13 @@ int pthread_cond_destroy(pthread_cond_t *cond)
 }
 
 
-int pthread_cond_wait(pthread_cond_t *cond, pthread_mutex_t *mutex)
-{
-  return pthread_cond_timedwait(cond,mutex,NULL);
-}
-
-
-int pthread_cond_timedwait(pthread_cond_t *cond, pthread_mutex_t *mutex,
+static int legacy_cond_timedwait(pthread_cond_t *cond, pthread_mutex_t *mutex,
                            struct timespec *abstime)
 {
   int result;
-  long timeout; 
-  union ft64 now;
-
-  if( abstime != NULL )
-  {
-    GetSystemTimeAsFileTime(&now.ft);
-
-    /*
-      Calculate time left to abstime
-      - subtract start time from current time(values are in 100ns units)
-      - convert to millisec by dividing with 10000
-    */
-    timeout= (long)((abstime->tv.i64 - now.i64) / 10000);
-    
-    /* Don't allow the timeout to be negative */
-    if (timeout < 0)
-      timeout= 0L;
-
-    /*
-      Make sure the calucated timeout does not exceed original timeout
-      value which could cause "wait for ever" if system time changes
-    */
-    if (timeout > abstime->max_timeout_msec)
-      timeout= abstime->max_timeout_msec;
-
-  }
-  else
-  {
-    /* No time specified; don't expire */
-    timeout= INFINITE;
-  }
+  DWORD timeout; 
 
+  timeout= get_milliseconds(abstime);
   /* 
     Block access if previous broadcast hasn't finished.
     This is just for safety and should normally not
@@ -142,7 +209,7 @@ int pthread_cond_timedwait(pthread_cond_t *cond, pthread_mutex_t *mutex,
   return result == WAIT_TIMEOUT ? ETIMEDOUT : 0;
 }
 
-int pthread_cond_signal(pthread_cond_t *cond)
+static int legacy_cond_signal(pthread_cond_t *cond)
 {
   EnterCriticalSection(&cond->lock_waiting);
   
@@ -155,7 +222,7 @@ int pthread_cond_signal(pthread_cond_t *cond)
 }
 
 
-int pthread_cond_broadcast(pthread_cond_t *cond)
+static int legacy_cond_broadcast(pthread_cond_t *cond)
 {
   EnterCriticalSection(&cond->lock_waiting);
   /*
@@ -177,6 +244,87 @@ int pthread_cond_broadcast(pthread_cond_t *cond)
 }
 
 
+/* 
+ Posix API functions. Just choose between native and legacy implementation.
+*/
+
+int pthread_cond_init(pthread_cond_t *cond, const pthread_condattr_t *attr)
+{
+  /*
+    Once initialization is used here rather than in my_init(), to 
+    1) avoid  my_init() pitfalls- undefined order in which initialization should
+    run
+    2) be potentially useful C++ (in static constructors that run before main())
+    3) just to simplify the API.
+    Also, the overhead of my_pthread_once is very small.
+  */
+  static my_pthread_once_t once_control= MY_PTHREAD_ONCE_INIT;
+  my_pthread_once(&once_control, check_native_cond_availability);
+
+  if (have_native_conditions)
+  {
+    my_InitializeConditionVariable(&cond->native_cond);
+    return 0;
+  }
+  else 
+    return legacy_cond_init(cond, attr);
+}
+
+
+int pthread_cond_destroy(pthread_cond_t *cond)
+{
+  if (have_native_conditions)
+    return 0; /* no destroy function */
+  else
+    return legacy_cond_destroy(cond);
+}
+
+
+int pthread_cond_broadcast(pthread_cond_t *cond)
+{
+  if (have_native_conditions)
+  {
+    my_WakeAllConditionVariable(&cond->native_cond);
+    return 0;
+  }
+  else
+    return legacy_cond_broadcast(cond);
+}
+
+
+int pthread_cond_signal(pthread_cond_t *cond)
+{
+  if (have_native_conditions)
+  {
+    my_WakeConditionVariable(&cond->native_cond);
+    return 0;
+  }
+  else
+    return legacy_cond_signal(cond);
+}
+
+
+int pthread_cond_timedwait(pthread_cond_t *cond, pthread_mutex_t *mutex,
+  struct timespec *abstime)
+{
+  if (have_native_conditions)
+  {
+    DWORD timeout= get_milliseconds(abstime);
+    if (!my_SleepConditionVariableCS(&cond->native_cond, mutex, timeout))
+      return ETIMEDOUT;
+    return 0;  
+  }
+  else
+    return legacy_cond_timedwait(cond, mutex, abstime);
+}
+
+
+int pthread_cond_wait(pthread_cond_t *cond, pthread_mutex_t *mutex)
+{
+  return pthread_cond_timedwait(cond, mutex, NULL);
+}
+
+
 int pthread_attr_init(pthread_attr_t *connect_att)
 {
   connect_att->dwStackSize	= 0;

mysys/my_winthread.c

@@ -155,8 +155,19 @@ int pthread_cancel(pthread_t thread)
 int my_pthread_once(my_pthread_once_t *once_control, 
     void (*init_routine)(void))
 {
-  LONG state= InterlockedCompareExchange(once_control, MY_PTHREAD_ONCE_INPROGRESS,
-                                          MY_PTHREAD_ONCE_INIT);
+  LONG state;
+
+  /*
+    Do "dirty" read to find out if initialization is already done, to
+    save an interlocked operation in common case. Memory barriers are ensured by 
+    Visual C++ volatile implementation.
+  */
+  if (*once_control == MY_PTHREAD_ONCE_DONE)
+    return 0;
+
+  state= InterlockedCompareExchange(once_control, MY_PTHREAD_ONCE_INPROGRESS,
+                                        MY_PTHREAD_ONCE_INIT);
+
   switch(state)
   {
   case MY_PTHREAD_ONCE_INIT:

mysys/thr_rwlock.c

@@ -20,6 +20,119 @@
 #if defined(NEED_MY_RW_LOCK)
 #include <errno.h>
 
+#ifdef _WIN32
+
+static BOOL have_srwlock= FALSE;
+/* Prototypes and function pointers for windows  functions */
+typedef VOID (WINAPI* srw_func) (PSRWLOCK SRWLock);
+typedef BOOL (WINAPI* srw_bool_func) (PSRWLOCK SRWLock);
+
+static srw_func my_InitializeSRWLock;
+static srw_func my_AcquireSRWLockExclusive;
+static srw_func my_ReleaseSRWLockExclusive;
+static srw_func my_AcquireSRWLockShared;
+static srw_func my_ReleaseSRWLockShared;
+
+static srw_bool_func my_TryAcquireSRWLockExclusive;
+static srw_bool_func my_TryAcquireSRWLockShared;
+
+/**
+  Check for presence of Windows slim reader writer lock function.
+  Load function pointers.
+*/
+
+static void check_srwlock_availability(void)
+{
+  HMODULE module= GetModuleHandle("kernel32");
+
+  my_InitializeSRWLock= (srw_func) GetProcAddress(module,
+    "InitializeSRWLock");
+  my_AcquireSRWLockExclusive= (srw_func) GetProcAddress(module,
+    "AcquireSRWLockExclusive");
+  my_AcquireSRWLockShared= (srw_func) GetProcAddress(module,
+    "AcquireSRWLockShared");
+  my_ReleaseSRWLockExclusive= (srw_func) GetProcAddress(module,
+    "ReleaseSRWLockExclusive");
+  my_ReleaseSRWLockShared= (srw_func) GetProcAddress(module,
+    "ReleaseSRWLockShared");
+  my_TryAcquireSRWLockExclusive=  (srw_bool_func) GetProcAddress(module,
+    "TryAcquireSRWLockExclusive");
+  my_TryAcquireSRWLockShared=  (srw_bool_func) GetProcAddress(module,
+    "TryAcquireSRWLockShared");
+
+  /*
+    We currently require TryAcquireSRWLockExclusive. This API is missing on 
+    Vista, this means SRWLock are only used starting with Win7.
+
+    If "trylock" usage for rwlocks is eliminated from server codebase (it is used 
+    in a single place currently, in query cache), then SRWLock can be enabled on 
+    Vista too. In this case  condition below needs to be changed to  e.g check 
+    for my_InitializeSRWLock.
+  */
+
+  if (my_TryAcquireSRWLockExclusive)
+    have_srwlock= TRUE;
+
+}
+
+
+static int srw_init(my_rw_lock_t *rwp)
+{
+  my_InitializeSRWLock(&rwp->srwlock);
+  rwp->have_exclusive_srwlock = FALSE;
+  return 0;
+}
+
+
+static int srw_rdlock(my_rw_lock_t *rwp)
+{
+  my_AcquireSRWLockShared(&rwp->srwlock);
+  return 0;
+}
+
+
+static int srw_tryrdlock(my_rw_lock_t *rwp)
+{
+
+  if (!my_TryAcquireSRWLockShared(&rwp->srwlock))
+    return EBUSY;
+  return 0;
+}
+
+
+static int srw_wrlock(my_rw_lock_t *rwp)
+{
+  my_AcquireSRWLockExclusive(&rwp->srwlock);
+  rwp->have_exclusive_srwlock= TRUE;
+  return 0;
+}
+
+
+static int srw_trywrlock(my_rw_lock_t *rwp)
+{
+  if (!my_TryAcquireSRWLockExclusive(&rwp->srwlock))
+    return EBUSY;
+  rwp->have_exclusive_srwlock= TRUE;
+  return 0;
+}
+
+
+static int srw_unlock(my_rw_lock_t *rwp)
+{
+  if (rwp->have_exclusive_srwlock)
+  {
+    rwp->have_exclusive_srwlock= FALSE;
+    my_ReleaseSRWLockExclusive(&rwp->srwlock);
+  }
+  else
+  {
+    my_ReleaseSRWLockShared(&rwp->srwlock);
+  }
+  return 0;
+}
+
+#endif /*_WIN32 */
+
 /*
   Source base from Sun Microsystems SPILT, simplified for MySQL use
   -- Joshua Chamas
@@ -63,6 +176,22 @@ int my_rw_init(my_rw_lock_t *rwp)
 {
   pthread_condattr_t	cond_attr;
 
+#ifdef _WIN32
+  /*
+    Once initialization is used here rather than in my_init(), in order to
+    - avoid  my_init() pitfalls- (undefined order in which initialization should
+    run)
+    - be potentially useful C++ (static constructors) 
+    - just to simplify  the API. 
+    Also, the overhead is of my_pthread_once is very small.
+  */
+  static my_pthread_once_t once_control= MY_PTHREAD_ONCE_INIT;
+  my_pthread_once(&once_control, check_srwlock_availability);
+
+  if (have_srwlock)
+    return srw_init(rwp);
+#endif
+
   pthread_mutex_init( &rwp->lock, MY_MUTEX_INIT_FAST);
   pthread_condattr_init( &cond_attr );
   pthread_cond_init( &rwp->readers, &cond_attr );
@@ -81,6 +210,10 @@ int my_rw_init(my_rw_lock_t *rwp)
 
 int my_rw_destroy(my_rw_lock_t *rwp)
 {
+#ifdef _WIN32
+  if (have_srwlock)
+    return 0; /* no destroy function */
+#endif
   DBUG_ASSERT(rwp->state == 0);
   pthread_mutex_destroy( &rwp->lock );
   pthread_cond_destroy( &rwp->readers );
@@ -91,6 +224,11 @@ int my_rw_destroy(my_rw_lock_t *rwp)
 
 int my_rw_rdlock(my_rw_lock_t *rwp)
 {
+#ifdef _WIN32
+  if (have_srwlock)
+    return srw_rdlock(rwp);
+#endif
+
   pthread_mutex_lock(&rwp->lock);
 
   /* active or queued writers */
@@ -105,6 +243,12 @@ int my_rw_rdlock(my_rw_lock_t *rwp)
 int my_rw_tryrdlock(my_rw_lock_t *rwp)
 {
   int res;
+
+#ifdef _WIN32
+  if (have_srwlock)
+    return srw_tryrdlock(rwp);
+#endif
+
   pthread_mutex_lock(&rwp->lock);
   if ((rwp->state < 0 ) || rwp->waiters)
     res= EBUSY;					/* Can't get lock */
@@ -120,6 +264,11 @@ int my_rw_tryrdlock(my_rw_lock_t *rwp)
 
 int my_rw_wrlock(my_rw_lock_t *rwp)
 {
+#ifdef _WIN32
+  if (have_srwlock)
+    return srw_wrlock(rwp);
+#endif
+
   pthread_mutex_lock(&rwp->lock);
   rwp->waiters++;				/* another writer queued */
 
@@ -140,6 +289,12 @@ int my_rw_wrlock(my_rw_lock_t *rwp)
 int my_rw_trywrlock(my_rw_lock_t *rwp)
 {
   int res;
+
+#ifdef _WIN32
+  if (have_srwlock)
+    return srw_trywrlock(rwp);
+#endif
+
   pthread_mutex_lock(&rwp->lock);
   if (rwp->state)
     res= EBUSY;					/* Can't get lock */    
@@ -158,6 +313,11 @@ int my_rw_trywrlock(my_rw_lock_t *rwp)
 
 int my_rw_unlock(my_rw_lock_t *rwp)
 {
+#ifdef _WIN32
+  if (have_srwlock)
+    return srw_unlock(rwp);
+#endif
+
   DBUG_PRINT("rw_unlock",
 	     ("state: %d waiters: %d", rwp->state, rwp->waiters));
   pthread_mutex_lock(&rwp->lock);