2010-06-21 Joel Sherrill <joel.sherrill@oarcorp.com>

	* support/include/test_support.h, support/src/tmtests_empty_function.c:
	Add helper so it is easier to write a basic repeated operation
	tmtest.
	* support/src/tmtests_support.c: New file.

3 files changed, 85 insertions, 0 deletions

diff --git a/testsuites/support/include/test_support.h b/testsuites/support/include/test_support.h
index b7f4aa281a..cbb2c4de55 100644
--- a/testsuites/support/include/test_support.h
+++ b/testsuites/support/include/test_support.h
@@ -46,6 +46,31 @@ void rtems_test_spin_for_ticks(int ticks);
  */
 void rtems_test_spin_until_next_tick( void );
 
+/*********************************************************************/
+/*********************************************************************/
+/**************              TMTEST SUPPORT             **************/
+/*********************************************************************/
+/*********************************************************************/
+
+/*
+ *  Type of method used for timing operations
+ */
+typedef void (*rtems_time_test_method_t)(
+  int    iteration,
+  void  *argument
+);
+
+/*
+ *  Obtain baseline timing information for benchmark tests.
+ */
+void rtems_time_test_measure_operation(
+  const char               *description,
+  rtems_time_test_method_t  operation,
+  void                     *argument,
+  int                       iterations,
+  int                       overhead
+);
+
 #ifdef __cplusplus
 };
 #endif
diff --git a/testsuites/support/src/tmtests_empty_function.c b/testsuites/support/src/tmtests_empty_function.c
index c8ed245bb1..17ac5bf39c 100644
--- a/testsuites/support/src/tmtests_empty_function.c
+++ b/testsuites/support/src/tmtests_empty_function.c
@@ -20,3 +20,10 @@ rtems_status_code benchmark_timer_empty_function( void )
 {
   return RTEMS_SUCCESSFUL;
 }
+
+void benchmark_timer_empty_operation(
+  int    iteration,
+  void  *argument
+)
+{
+}
diff --git a/testsuites/support/src/tmtests_support.c b/testsuites/support/src/tmtests_support.c
new file mode 100644
index 0000000000..350b35c85c
--- /dev/null
+++ b/testsuites/support/src/tmtests_support.c
@@ -0,0 +1,53 @@
+/*
+ *  COPYRIGHT (c) 1989-2010.
+ *  On-Line Applications Research Corporation (OAR).
+ *
+ *  The license and distribution terms for this file may be
+ *  found in the file LICENSE in this distribution or at
+ *  http://www.rtems.com/license/LICENSE.
+ *
+ *  $Id$
+ */
+
+#include <bsp.h>
+#include <rtems/timerdrv.h>
+#include "test_support.h"
+#include "timesys.h"
+
+extern void benchmark_timer_empty_operation(
+  int    iteration,
+  void  *argument
+);
+
+void rtems_time_test_measure_operation(
+  const char               *description,
+  rtems_time_test_method_t  operation,
+  void                     *argument,
+  int                       iterations,
+  int                       overhead
+)
+{
+  int i;
+  int loop_overhead;
+  int end_time;
+
+  benchmark_timer_initialize();
+    for (i=0 ; i<iterations ; i++ ) {
+      benchmark_timer_empty_operation( i, argument );
+    }
+  loop_overhead = benchmark_timer_read();
+
+  benchmark_timer_initialize();
+    for (i=0 ; i<iterations ; i++ ) {
+      (*operation)( i, argument );
+    }
+  end_time = benchmark_timer_read();
+
+  put_time(
+    description,
+    end_time,
+    iterations,
+    loop_overhead,
+    overhead
+  );
+}