Fixed bug in mtr that caused restart to fail if mysqld died to fast

Author: montywi

mysql-test/include/restart_mysqld.inc

@@ -8,3 +8,8 @@
 
 --source include/shutdown_mysqld.inc
 --source include/start_mysqld.inc
+
+# The following sleep is required to give sleep_until_file_created() time
+# to notice that the server was restarted. sleep_until_file_created() would
+# fail if the server was restarted or killed at once after restart.
+--sleep 0.1

mysql-test/include/wait_until_connected_again.inc

@@ -33,7 +33,10 @@ while ($mysql_errno)
   {
     let $mysql_errno=0;
   }
-  --sleep 0.1
+  if ($mysql_errno > 0)
+  {
+    --sleep 0.1
+  }
 }
 --enable_query_log
 --enable_result_log

mysql-test/lib/mtr_process.pl

@@ -107,10 +107,10 @@ ($$$$)
   my $timeout= shift;
   my $proc=     shift;
   my $warn_seconds = shift;
-  my $sleeptime= 100; # Milliseconds
-  my $loops= ($timeout * 1000) / $sleeptime;
+  my $sleeptime= 10; # Milliseconds
+  my $loops= ($timeout * 10000) / $sleeptime;
 
-  for ( my $loop= 1; $loop <= $loops; $loop++ )
+  for ( my $loop= 0; $loop <= $loops; $loop++ )
   {
     if ( -r $pidfile )
     {