Provide cross-platform implementation of WaitableEvent for use on Mac and Linux.

I gave the file the suffix _generic since it is implemented entirely in terms of other APIs in base.

This CL also adds a simple unit test for WaitableEvent, and I switched some code in thread.cc over to using WaitableEvent.


git-svn-id: svn://svn.chromium.org/chrome/trunk/src@648 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 77 insertions, 0 deletions

diff --git a/base/waitable_event_unittest.cc b/base/waitable_event_unittest.cc
new file mode 100644
index 0000000..c35bd2eb
--- /dev/null
+++ b/base/waitable_event_unittest.cc
@@ -0,0 +1,77 @@
+// Copyright 2008, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//    * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//    * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//    * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#include "base/time.h"
+#include "base/waitable_event.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+using base::WaitableEvent;
+
+namespace {
+typedef testing::Test WaitableEventTest;
+}
+
+TEST(WaitableEventTest, ManualBasics) {
+  WaitableEvent event(true, false);
+
+  EXPECT_FALSE(event.IsSignaled());
+
+  event.Signal();
+  EXPECT_TRUE(event.IsSignaled());
+  EXPECT_TRUE(event.IsSignaled());
+
+  event.Reset();
+  EXPECT_FALSE(event.IsSignaled());
+  EXPECT_FALSE(event.TimedWait(TimeDelta::FromMilliseconds(10)));
+
+  event.Signal();
+  EXPECT_TRUE(event.Wait());
+  EXPECT_TRUE(event.TimedWait(TimeDelta::FromMilliseconds(10)));
+}
+
+TEST(WaitableEventTest, AutoBasics) {
+  WaitableEvent event(false, false);
+
+  EXPECT_FALSE(event.IsSignaled());
+
+  event.Signal();
+  EXPECT_TRUE(event.IsSignaled());
+  EXPECT_FALSE(event.IsSignaled());
+
+  event.Reset();
+  EXPECT_FALSE(event.IsSignaled());
+  EXPECT_FALSE(event.TimedWait(TimeDelta::FromMilliseconds(10)));
+
+  event.Signal();
+  EXPECT_TRUE(event.Wait());
+  EXPECT_FALSE(event.TimedWait(TimeDelta::FromMilliseconds(10)));
+
+  event.Signal();
+  EXPECT_TRUE(event.TimedWait(TimeDelta::FromMilliseconds(10)));
+}