[RFC PATCH v1 4/9] selftest: sync: wait tests for sw_sync framework

["Emilio López" <emilio.lopez@collabora.co.uk>]

These tests are based on the libsync test suite from Android.
This commit includes tests for waiting on fences.

Signed-off-by: Emilio López <emilio.lopez@collabora.co.uk>
---

 tools/testing/selftests/sync/Makefile    |  1 +
 tools/testing/selftests/sync/sync_test.c |  1 +
 tools/testing/selftests/sync/sync_wait.c | 95 ++++++++++++++++++++++++++++++++
 tools/testing/selftests/sync/synctest.h  |  3 +
 4 files changed, 100 insertions(+)
 create mode 100644 tools/testing/selftests/sync/sync_wait.c

diff --git a/tools/testing/selftests/sync/Makefile b/tools/testing/selftests/sync/Makefile
index 10f3197..9944957 100644
--- a/tools/testing/selftests/sync/Makefile
+++ b/tools/testing/selftests/sync/Makefile
@@ -14,6 +14,7 @@ SRC = sync_test.o sync.o
 TESTS += sync_alloc.o
 TESTS += sync_fence.o
 TESTS += sync_merge.o
+TESTS += sync_wait.o
 
 sync_test: $(SRC) $(TESTS)
 
diff --git a/tools/testing/selftests/sync/sync_test.c b/tools/testing/selftests/sync/sync_test.c
index 48636d3..344a2f6 100644
--- a/tools/testing/selftests/sync/sync_test.c
+++ b/tools/testing/selftests/sync/sync_test.c
@@ -65,6 +65,7 @@ int main(void)
 	err += RUN_TEST(test_fence_one_timeline_wait);
 	err += RUN_TEST(test_fence_one_timeline_merge);
 	err += RUN_TEST(test_fence_merge_same_fence);
+	err += RUN_TEST(test_fence_multi_timeline_wait);
 
 	if (err)
 		printf("[FAIL]\tsync errors: %d\n", err);
diff --git a/tools/testing/selftests/sync/sync_wait.c b/tools/testing/selftests/sync/sync_wait.c
new file mode 100644
index 0000000..224e66a
--- /dev/null
+++ b/tools/testing/selftests/sync/sync_wait.c
@@ -0,0 +1,95 @@
+/*
+ *  sync fence wait tests
+ *  Copyright 2015-2016 Collabora Ltd.
+ *
+ *  Based on the implementation from the Android Open Source Project,
+ *
+ *  Copyright 2012 Google, Inc
+ *
+ *  Permission is hereby granted, free of charge, to any person obtaining a
+ *  copy of this software and associated documentation files (the "Software"),
+ *  to deal in the Software without restriction, including without limitation
+ *  the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ *  and/or sell copies of the Software, and to permit persons to whom the
+ *  Software is furnished to do so, subject to the following conditions:
+ *
+ *  The above copyright notice and this permission notice shall be included in
+ *  all copies or substantial portions of the Software.
+ *
+ *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ *  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ *  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ *  THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ *  OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ *  ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ *  OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include <errno.h>
+
+#include "sync.h"
+#include "sw_sync.h"
+#include "synctest.h"
+
+int test_fence_multi_timeline_wait(void)
+{
+	int timelineA, timelineB, timelineC;
+	int fenceA, fenceB, fenceC, mergedFence;
+	int valid, active, signaled, ret;
+
+	timelineA = sw_sync_timeline_create();
+	timelineB = sw_sync_timeline_create();
+	timelineC = sw_sync_timeline_create();
+
+	fenceA = sw_sync_fence_create(timelineA, "allocFence", 5);
+	fenceB = sw_sync_fence_create(timelineB, "allocFence", 5);
+	fenceC = sw_sync_fence_create(timelineC, "allocFence", 5);
+
+	mergedFence = sync_merge("mergeFence", fenceB, fenceA);
+	mergedFence = sync_merge("mergeFence", fenceC, mergedFence);
+
+	valid = sw_sync_fence_is_valid(mergedFence);
+	ASSERT(valid, "Failure merging fence from various timelines\n");
+
+	/* Confirm fence isn't signaled */
+	active = sync_fence_count_with_status(mergedFence, FENCE_STATUS_ACTIVE);
+	ASSERT(active == 3, "Fence signaled too early!\n");
+
+	ret = sync_wait(mergedFence, 0);
+	ASSERT(ret == 0, "Failure waiting on fence until timeout\n");
+
+	ret = sw_sync_timeline_inc(timelineA, 5);
+	active = sync_fence_count_with_status(mergedFence, FENCE_STATUS_ACTIVE);
+	signaled = sync_fence_count_with_status(mergedFence,
+						FENCE_STATUS_SIGNALED);
+	ASSERT(active == 2 && signaled == 1,
+	       "Fence did not signal properly!\n");
+
+	ret = sw_sync_timeline_inc(timelineB, 5);
+	active = sync_fence_count_with_status(mergedFence, FENCE_STATUS_ACTIVE);
+	signaled = sync_fence_count_with_status(mergedFence,
+						FENCE_STATUS_SIGNALED);
+	ASSERT(active == 1 && signaled == 2,
+	       "Fence did not signal properly!\n");
+
+	ret = sw_sync_timeline_inc(timelineC, 5);
+	active = sync_fence_count_with_status(mergedFence, FENCE_STATUS_ACTIVE);
+	signaled = sync_fence_count_with_status(mergedFence,
+						FENCE_STATUS_SIGNALED);
+	ASSERT(active == 0 && signaled == 3,
+	       "Fence did not signal properly!\n");
+
+	/* confirm you can successfully wait */
+	ret = sync_wait(mergedFence, 100);
+	ASSERT(ret > 0, "Failure waiting on signaled fence\n");
+
+	sw_sync_fence_destroy(mergedFence);
+	sw_sync_fence_destroy(fenceC);
+	sw_sync_fence_destroy(fenceB);
+	sw_sync_fence_destroy(fenceA);
+	sw_sync_timeline_destroy(timelineC);
+	sw_sync_timeline_destroy(timelineB);
+	sw_sync_timeline_destroy(timelineA);
+
+	return 0;
+}
diff --git a/tools/testing/selftests/sync/synctest.h b/tools/testing/selftests/sync/synctest.h
index 750cf5a..9287393 100644
--- a/tools/testing/selftests/sync/synctest.h
+++ b/tools/testing/selftests/sync/synctest.h
@@ -51,4 +51,7 @@ int test_fence_one_timeline_merge(void);
 /* Fence merge tests */
 int test_fence_merge_same_fence(void);
 
+/* Fence wait tests */
+int test_fence_multi_timeline_wait(void);
+
 #endif
-- 
2.5.0