1 files changed, 88 insertions, 0 deletions
diff --git a/mysql-test/include/wait_for_status_var.inc b/mysql-test/include/wait_for_status_var.inc
new file mode 100644
index 00000000..33338c58
--- /dev/null
+++ b/mysql-test/include/wait_for_status_var.inc
@@ -0,0 +1,88 @@
+# ==== Purpose ====
+#
+# Waits until a variable from SHOW STATUS has returned a specified 
+# value, or until a timeout is reached.
+#
+# ==== Usage ====
+#
+# let $status_var= Threads_connected;
+# let $status_var_value= 1;
+# --source include/wait_for_status_var.inc
+#
+# Parameters:
+#
+# $status_var, $status_var_value
+#   This macro will wait until the variable of SHOW STATUS 
+#   named $status_var gets the value $status_var_value.  See
+#   the example above.
+# 
+# $status_type= GLOBAL|SESSION
+#   To specify the type (attribute) of status variable and
+#   run either SHOW GLOBAL STATUS or SHOW SESSION STATUS.
+# 
+# $status_var_comparsion
+#   By default, this file waits until $status_var becomes equal to
+#   $status_var_value.  If you want to wait until $status_var
+#   becomes *unequal* to $status_var_value, set this parameter to the
+#   string '!=', like this:
+#     let $status_var_comparsion= !=;
+#
+# $status_timeout
+#   The default timeout is 1 minute. You can change the timeout by
+#   setting $status_timeout. The unit is tenths of seconds.
+#
+
+if (`SELECT STRCMP('$status_type', '') * STRCMP(UPPER('$status_type'), 'SESSION') * STRCMP(UPPER('$status_type'), 'GLOBAL')`)
+{
+  --echo **** ERROR: Unknown type of variable status_type: allowed values are: SESSION or GLOBAL ****
+  die;
+}
+
+let $_status_timeout_counter= $status_timeout;
+if (!$_status_timeout_counter)
+{
+  let $_status_timeout_counter= 600;
+}
+
+let $_status_var_comparsion= $status_var_comparsion;
+if (!$_status_var_comparsion)
+{
+  let $_status_var_comparsion= =;
+}
+
+# Get type of variable
+let $_is_number= 0;
+if (`SELECT '$status_var_value' REGEXP '^[\+\-]*[0-9]+(\.[0-9]+)*\$'`)
+{
+  let $_is_number= 1;
+}
+
+let $_show_status_value= query_get_value("SHOW $status_type STATUS LIKE '$status_var'", Value, 1);
+
+# Set way of comparing
+let $_query= SELECT NOT('$_show_status_value' $_status_var_comparsion '$status_var_value');
+if ($_is_number)
+{
+  let $_query= SELECT NOT($_show_status_value $_status_var_comparsion $status_var_value);
+}
+
+while (`$_query`)
+{
+  if (!$_status_timeout_counter)
+  {
+    --echo **** ERROR: failed while waiting for '$status_type' '$status_var' $_status_var_comparsion '$status_var_value' ****
+    --echo Note: the following output may have changed since the failure was detected
+    --echo **** Showing STATUS, PROCESSLIST ****
+    eval SHOW $status_type STATUS LIKE '$status_var';
+    SHOW PROCESSLIST;
+    die;
+  }
+  dec $_status_timeout_counter;
+  sleep 0.1;
+  let $_show_status_value= query_get_value("SHOW $status_type STATUS LIKE '$status_var'", Value, 1);
+  let $_query= SELECT NOT('$_show_status_value' $_status_var_comparsion '$status_var_value');
+  if ($_is_number)
+  {
+    let $_query= SELECT NOT($_show_status_value $_status_var_comparsion $status_var_value);
+  }
+}