Provide an iOS message pump for IO implementation.

base/message_pump_libevent_unittest.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "base/message_pump_libevent.h"
 
 #include <unistd.h>
 
 #include "base/message_loop.h"
 #include "base/posix/eintr_wrapper.h"
@@ skipping 111 matching lines @@
     delete controller_;
     controller_ = NULL;
   }
 };
 
 TEST_F(MessagePumpLibeventTest, DeleteWatcher) {
   scoped_refptr<MessagePumpLibevent> pump(new MessagePumpLibevent);
   MessagePumpLibevent::FileDescriptorWatcher* watcher =
       new MessagePumpLibevent::FileDescriptorWatcher;
   DeleteWatcher delegate(watcher);
-  pump->WatchFileDescriptor(pipefds_[1],
-      false, MessagePumpLibevent::WATCH_READ_WRITE, watcher, &delegate);
+  pump->WatchFileDescriptor(pipefds_[1], false,
+      MessagePumpLibevent::WATCH_READ | MessagePumpLibevent::WATCH_WRITE,

[wtc, 2012/11/21 18:48:42]

This is very long. I think we can still define the enumerator
WATCH_READ_WRITE, while declaring the |mode| argument of
WatchFileDescriptor as int.

[blundell, 2012/11/26 16:02:23]

Done.

+      watcher, &delegate);
 
   // Spoof a libevent notification.
   OnLibeventNotification(pump, watcher);
 }
 
 class StopWatcher : public BaseWatcher {
  public:
   explicit StopWatcher(
       MessagePumpLibevent::FileDescriptorWatcher* controller)
       : BaseWatcher(controller) {}
 
   virtual ~StopWatcher() {}
 
   virtual void OnFileCanWriteWithoutBlocking(int /* fd */) OVERRIDE {
     controller_->StopWatchingFileDescriptor();
   }
 };
 
 TEST_F(MessagePumpLibeventTest, StopWatcher) {
   scoped_refptr<MessagePumpLibevent> pump(new MessagePumpLibevent);
   MessagePumpLibevent::FileDescriptorWatcher watcher;
   StopWatcher delegate(&watcher);
-  pump->WatchFileDescriptor(pipefds_[1],
-      false, MessagePumpLibevent::WATCH_READ_WRITE, &watcher, &delegate);
+  pump->WatchFileDescriptor(pipefds_[1], false,
+      MessagePumpLibevent::WATCH_READ | MessagePumpLibevent::WATCH_WRITE,
+      &watcher, &delegate);
 
   // Spoof a libevent notification.
   OnLibeventNotification(pump, &watcher);
 }
 
 }  // namespace
 
 }  // namespace base