[PATCH 3/3] synchapi: add simple barrier test

[quininer]

From: quininer

---
 dlls/kernel32/tests/sync.c | 21 +++++++++++++++++++++
 dlls/kernelbase/sync.c     |  6 ++++++
 2 files changed, 27 insertions(+)

diff --git a/dlls/kernel32/tests/sync.c b/dlls/kernel32/tests/sync.c
index 56a9d6e4859..a5b4c13b2b7 100644
--- a/dlls/kernel32/tests/sync.c
+++ b/dlls/kernel32/tests/sync.c
@@ -2841,6 +2841,26 @@ static void test_QueueUserAPC(void)
     ok(apc_count == 1, "APC count %u\n", apc_count);
 }

+static DWORD WINAPI barrier_worker(LPVOID b) {
+    SYNCHRONIZATION_BARRIER *barrier = (SYNCHRONIZATION_BARRIER*)b;
+    EnterSynchronizationBarrier(barrier, 0);
+    return 0;
+}
+
+static void test_barrier(void)
+{
+    SYNCHRONIZATION_BARRIER barrier;
+    DWORD dummy;
+
+    InitializeSynchronizationBarrier(&barrier, 3, 0);
+
+    CreateThread(NULL, 0, barrier_worker, &barrier, 0, &dummy);
+    CreateThread(NULL, 0, barrier_worker, &barrier, 0, &dummy);
+
+    EnterSynchronizationBarrier(&barrier, 0);
+    DeleteSynchronizationBarrier(&barrier);
+}
+
 START_TEST(sync)
 {
     char **argv;
@@ -2912,4 +2932,5 @@ START_TEST(sync)
     test_alertable_wait();
     test_apc_deadlock();
     test_crit_section();
+    test_barrier();
 }
diff --git a/dlls/kernelbase/sync.c b/dlls/kernelbase/sync.c
index 6181006802f..f28862e9ee3 100644
--- a/dlls/kernelbase/sync.c
+++ b/dlls/kernelbase/sync.c
@@ -1705,6 +1705,9 @@ BOOL WINAPI DECLSPEC_HOTPATCH InitializeSynchronizationBarrier( LPSYNCHRONIZATIO
     return TRUE;
 }

+/***********************************************************************
+ *           EnterSynchronizationBarrier    (kernelbase.@)
+ */
 BOOL WINAPI DECLSPEC_HOTPATCH EnterSynchronizationBarrier( LPSYNCHRONIZATION_BARRIER lpBarrier,
                                                             DWORD dwFlags )
 {
@@ -1734,6 +1737,9 @@ BOOL WINAPI DECLSPEC_HOTPATCH EnterSynchronizationBarrier( LPSYNCHRONIZATION_BAR
     return hint;
 }

+/***********************************************************************
+ *           DeleteSynchronizationBarrier   (kernelbase.@)
+ */
 BOOL WINAPI DECLSPEC_HOTPATCH DeleteSynchronizationBarrier( LPSYNCHRONIZATION_BARRIER lpBarrier )
 {
     return TRUE;