[glib] tests: merge gthread/ and glib/ atomic tests

[Ryan Lortie <ryanl src gnome org>]

commit fb4e120d88777affc4a8fbeb73312b1e810e2431
Author: Ryan Lortie <desrt desrt ca>
Date:   Sun Oct 16 19:04:19 2011 -0400

    tests: merge gthread/ and glib/ atomic tests

 glib/tests/atomic.c       |   60 +++++++++++++++++++++++++++++++++++++-
 gthread/tests/Makefile.am |    4 --
 gthread/tests/atomic.c    |   70 ---------------------------------------------
 3 files changed, 59 insertions(+), 75 deletions(-)
---
diff --git a/glib/tests/atomic.c b/glib/tests/atomic.c
index abacb6c..c1ebc66 100644
--- a/glib/tests/atomic.c
+++ b/glib/tests/atomic.c
@@ -1,3 +1,14 @@
+/*
+ * Copyright 2011 Red Hat, Inc.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * See the included COPYING file for more information.
+ */
+
 #include <glib.h>
 
 static void
@@ -184,8 +195,54 @@ test_types (void)
   gs2 = g_atomic_pointer_xor (&gs, 4);
   g_assert (gs2 == 12);
   g_assert (gs == 8);
+}
+
+#define THREADS 10
+#define ROUNDS 10000
+
+volatile gint bucket[THREADS];
+volatile gint atomic;
+
+static gpointer
+thread_func (gpointer data)
+{
+  gint idx = GPOINTER_TO_INT (data);
+  gint i;
+  gint d;
+
+  for (i = 0; i < ROUNDS; i++)
+    {
+      d = g_random_int_range (-10, 100);
+      bucket[idx] += d;
+      g_atomic_int_add (&atomic, d);
+      g_thread_yield ();
+    }
+
+  return NULL;
+}
+
+static void
+test_threaded (void)
+{
+  gint sum;
+  gint i;
+  GThread *threads[THREADS];
+
+  atomic = 0;
+  for (i = 0; i < THREADS; i++)
+    bucket[i] = 0;
+
+  for (i = 0; i < THREADS; i++)
+    threads[i] = g_thread_new ("atomic", thread_func, GINT_TO_POINTER (i));
+
+  for (i = 0; i < THREADS; i++)
+    g_thread_join (threads[i]);
+
+  sum = 0;
+  for (i = 0; i < THREADS; i++)
+    sum += bucket[i];
 
-  return 0;
+  g_assert_cmpint (sum, ==, atomic);
 }
 
 int
@@ -194,6 +251,7 @@ main (int argc, char **argv)
   g_test_init (&argc, &argv, NULL);
 
   g_test_add_func ("/atomic/types", test_types);
+  g_test_add_func ("/atomic/threaded", test_threaded);
 
   return g_test_run ();
 }
diff --git a/gthread/tests/Makefile.am b/gthread/tests/Makefile.am
index 121ac53..7f2229f 100644
--- a/gthread/tests/Makefile.am
+++ b/gthread/tests/Makefile.am
@@ -32,10 +32,6 @@ unix_multithreaded_CFLAGS   = -DTEST_THREADED
 unix_multithreaded_LDADD    = $(progs_ldadd) $(top_builddir)/gthread/libgthread-2.0.la
 endif
 
-TEST_PROGS += atomic
-atomic_SOURCES = atomic.c
-atomic_LDADD = $(progs_ldadd) $(top_builddir)/gthread/libgthread-2.0.la
-
 TEST_PROGS += spawn-multithreaded
 spawn_multithreaded_SOURCES = spawn-multithreaded.c
 spawn_multithreaded_LDADD    = $(progs_ldadd) $(top_builddir)/gthread/libgthread-2.0.la