[PATCH] sptests/spsem04: new test case for PIP starvation

Gedare Bloom gedare at rtems.org
Tue Dec 19 20:01:16 UTC 2017


Closes #3263.
---
 testsuites/sptests/Makefile.am         |   1 +
 testsuites/sptests/configure.ac        |   1 +
 testsuites/sptests/spsem04/Makefile.am |  19 +++++
 testsuites/sptests/spsem04/init.c      | 151 +++++++++++++++++++++++++++++++++
 testsuites/sptests/spsem04/spsem04.doc |  13 +++
 testsuites/sptests/spsem04/spsem04.scn |   2 +
 6 files changed, 187 insertions(+)
 create mode 100644 testsuites/sptests/spsem04/Makefile.am
 create mode 100644 testsuites/sptests/spsem04/init.c
 create mode 100644 testsuites/sptests/spsem04/spsem04.doc
 create mode 100644 testsuites/sptests/spsem04/spsem04.scn

diff --git a/testsuites/sptests/Makefile.am b/testsuites/sptests/Makefile.am
index 00f7571..ddedb41 100644
--- a/testsuites/sptests/Makefile.am
+++ b/testsuites/sptests/Makefile.am
@@ -58,6 +58,7 @@ _SUBDIRS += sptimecounter04
 _SUBDIRS += spatomic01
 _SUBDIRS += spintrcritical22
 _SUBDIRS += spsem03
+_SUBDIRS += spsem04
 _SUBDIRS += spmrsp01
 _SUBDIRS += spscheduler01
 _SUBDIRS += spfatal28
diff --git a/testsuites/sptests/configure.ac b/testsuites/sptests/configure.ac
index 6a303b2..b9245cd 100644
--- a/testsuites/sptests/configure.ac
+++ b/testsuites/sptests/configure.ac
@@ -58,6 +58,7 @@ spatomic01/Makefile
 spglobalcon01/Makefile
 spintrcritical22/Makefile
 spsem03/Makefile
+spsem04/Makefile
 spmrsp01/Makefile
 spscheduler01/Makefile
 spfatal28/Makefile
diff --git a/testsuites/sptests/spsem04/Makefile.am b/testsuites/sptests/spsem04/Makefile.am
new file mode 100644
index 0000000..d728786
--- /dev/null
+++ b/testsuites/sptests/spsem04/Makefile.am
@@ -0,0 +1,19 @@
+rtems_tests_PROGRAMS = spsem04
+spsem04_SOURCES = init.c
+
+dist_rtems_tests_DATA = spsem04.scn spsem04.doc
+
+include $(RTEMS_ROOT)/make/custom/@RTEMS_BSP at .cfg
+include $(top_srcdir)/../automake/compile.am
+include $(top_srcdir)/../automake/leaf.am
+
+AM_CPPFLAGS += -I$(top_srcdir)/../support/include
+
+LINK_OBJS = $(spsem04_OBJECTS)
+LINK_LIBS = $(spsem04_LDLIBS)
+
+spsem04$(EXEEXT): $(spsem04_OBJECTS) $(spsem04_DEPENDENCIES)
+	@rm -f spsem04$(EXEEXT)
+	$(make-exe)
+
+include $(top_srcdir)/../automake/local.am
diff --git a/testsuites/sptests/spsem04/init.c b/testsuites/sptests/spsem04/init.c
new file mode 100644
index 0000000..6022ecb
--- /dev/null
+++ b/testsuites/sptests/spsem04/init.c
@@ -0,0 +1,151 @@
+/*
+ * Copyright (c) 2017 Gedare Bloom.
+ * Copyright (c) 2014, 2016 embedded brains GmbH.  All rights reserved.
+ *
+ *  embedded brains GmbH
+ *  Dornierstr. 4
+ *  82178 Puchheim
+ *  Germany
+ *  <rtems at embedded-brains.de>
+ *
+ * The license and distribution terms for this file may be
+ * found in the file LICENSE in this distribution or at
+ * http://www.rtems.org/license/LICENSE.
+ */
+
+#ifdef HAVE_CONFIG_H
+  #include "config.h"
+#endif
+
+#include "tmacros.h"
+
+const char rtems_test_name[] = "SPSEM 4";
+
+typedef struct {
+  rtems_id low;
+  rtems_id mid;
+  rtems_id high;
+  rtems_id sem_a;
+  rtems_id sem_b;
+} test_context;
+
+static test_context test_instance;
+
+static void assert_prio(rtems_id task_id, rtems_task_priority expected_prio)
+{
+  rtems_status_code sc;
+  rtems_task_priority prio;
+
+  sc = rtems_task_set_priority(task_id, RTEMS_CURRENT_PRIORITY, &prio);
+  rtems_test_assert(sc == RTEMS_SUCCESSFUL);
+  rtems_test_assert(prio == expected_prio);
+}
+
+static void create_task(rtems_id *id, rtems_task_priority prio)
+{
+  rtems_status_code sc;
+
+  sc = rtems_task_create(
+    rtems_build_name('T', 'A', 'S', 'K'),
+    prio,
+    RTEMS_MINIMUM_STACK_SIZE,
+    RTEMS_DEFAULT_MODES,
+    RTEMS_DEFAULT_ATTRIBUTES,
+    id
+  );
+  rtems_test_assert(sc == RTEMS_SUCCESSFUL);
+}
+
+static void start_task(rtems_id id, rtems_task_entry entry)
+{
+  rtems_status_code sc;
+
+  sc = rtems_task_start(id, entry, 0);
+  rtems_test_assert(sc == RTEMS_SUCCESSFUL);
+}
+
+static void create_sema(rtems_id *id)
+{
+  rtems_status_code sc;
+
+  sc = rtems_semaphore_create(
+    rtems_build_name('S', 'E', 'M', 'A'),
+    1,
+    RTEMS_BINARY_SEMAPHORE | RTEMS_INHERIT_PRIORITY | RTEMS_PRIORITY,
+    0,
+    id
+  );
+  rtems_test_assert(sc == RTEMS_SUCCESSFUL);
+}
+
+static void obtain_sema(rtems_id id)
+{
+  rtems_status_code sc;
+
+  sc = rtems_semaphore_obtain(id, RTEMS_WAIT, RTEMS_NO_TIMEOUT);
+  rtems_test_assert(sc == RTEMS_SUCCESSFUL);
+}
+
+static void release_sema(rtems_id id)
+{
+  rtems_status_code sc;
+
+  sc = rtems_semaphore_release(id);
+  rtems_test_assert(sc == RTEMS_SUCCESSFUL);
+}
+
+static void mid_task(rtems_task_argument arg)
+{
+  test_context *ctx = &test_instance;
+
+  rtems_test_assert(0);
+}
+
+static void high_task(rtems_task_argument arg)
+{
+  test_context *ctx = &test_instance;
+
+  start_task(ctx->mid, mid_task);
+  obtain_sema(ctx->sem_b);
+ 
+  TEST_END();
+  rtems_test_exit(0);
+}
+
+static void Init(rtems_task_argument arg)
+{
+  test_context *ctx = &test_instance;
+
+  TEST_BEGIN();
+
+  ctx->low = rtems_task_self();
+  create_task(&ctx->mid, 3);
+  create_task(&ctx->high, 1);
+  create_sema(&ctx->sem_a);
+  create_sema(&ctx->sem_b);
+
+  obtain_sema(ctx->sem_a);
+  obtain_sema(ctx->sem_b);
+  start_task(ctx->high, high_task);
+
+  release_sema(ctx->sem_b);
+
+  rtems_test_assert(0);
+}
+
+#define CONFIGURE_APPLICATION_NEEDS_CLOCK_DRIVER
+#define CONFIGURE_APPLICATION_NEEDS_CONSOLE_DRIVER
+
+#define CONFIGURE_MAXIMUM_TASKS 4
+#define CONFIGURE_MAXIMUM_SEMAPHORES 2
+
+#define CONFIGURE_INIT_TASK_PRIORITY 4
+#define CONFIGURE_INIT_TASK_INITIAL_MODES RTEMS_DEFAULT_MODES
+
+#define CONFIGURE_INITIAL_EXTENSIONS RTEMS_TEST_INITIAL_EXTENSION
+
+#define CONFIGURE_RTEMS_INIT_TASKS_TABLE
+
+#define CONFIGURE_INIT
+
+#include <rtems/confdefs.h>
diff --git a/testsuites/sptests/spsem04/spsem04.doc b/testsuites/sptests/spsem04/spsem04.doc
new file mode 100644
index 0000000..053a4d7
--- /dev/null
+++ b/testsuites/sptests/spsem04/spsem04.doc
@@ -0,0 +1,13 @@
+This file describes the directives and concepts tested by this test set.
+
+test set name: spsem04
+
+directives:
+
+  - rtems_semaphore_obtain()
+  - rtems_semaphore_release()
+
+concepts:
+
+  - Demonstrate that the priority inheritance protocol works with stepping
+    down of priority on semaphore release.
diff --git a/testsuites/sptests/spsem04/spsem04.scn b/testsuites/sptests/spsem04/spsem04.scn
new file mode 100644
index 0000000..fa68519
--- /dev/null
+++ b/testsuites/sptests/spsem04/spsem04.scn
@@ -0,0 +1,2 @@
+*** BEGIN OF TEST SPSEM 4 ***
+*** END OF TEST SPSEM 4 ***
-- 
2.7.4



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