Use libevent, second try. Changes this time:...

base/message_loop.cc

 // Copyright (c) 2006-2008 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_loop.h"
 
 #include <algorithm>
 
 #include "base/compiler_specific.h"
 #include "base/lazy_instance.h"
 #include "base/logging.h"
 #include "base/message_pump_default.h"
 #include "base/string_util.h"
 #include "base/thread_local.h"
 
+#if defined(OS_POSIX)
+#include "base/message_pump_libevent.h"
+#endif
+
 // A lazily created thread local storage for quick access to a thread's message
 // loop, if one exists.  This should be safe and free of static constructors.
 static base::LazyInstance<base::ThreadLocalPointer<MessageLoop> > lazy_tls_ptr(
     base::LINKER_INITIALIZED);
 
 //------------------------------------------------------------------------------
 
 // Logical events for Histogram profiling. Run with -message-loop-histogrammer
 // to get an accounting of messages and actions taken on each thread.
 static const int kTaskRunEvent = 0x1;
@@ skipping 45 matching lines @@
   DCHECK(!current()) << "should only have one message loop per thread";
   lazy_tls_ptr.Pointer()->Set(this);
 
   // TODO(darin): Choose the pump based on the requested type.
 #if defined(OS_WIN)
   if (type_ == TYPE_DEFAULT) {
     pump_ = new base::MessagePumpDefault();
   } else {
     pump_ = new base::MessagePumpWin();
   }
+#elif defined(OS_POSIX)
+  if (type_ == TYPE_IO) {
+    pump_ = new base::MessagePumpLibevent();
+  } else {
+    pump_ = new base::MessagePumpDefault();
+  }
 #else
   pump_ = new base::MessagePumpDefault();
 #endif
 }
 
 MessageLoop::~MessageLoop() {
   DCHECK(this == current());
 
   // Let interested parties have one last shot at accessing this.
   FOR_EACH_OBSERVER(DestructionObserver, destruction_observers_,
@@ skipping 463 matching lines @@
 
 //------------------------------------------------------------------------------
 // MessageLoopForIO
 
 #if defined(OS_WIN)
 
 void MessageLoopForIO::WatchObject(HANDLE object, Watcher* watcher) {
   pump_win()->WatchObject(object, watcher);
 }
 
-#endif  // defined(OS_WIN)
+#elif defined(OS_POSIX)
+
+void MessageLoopForIO::WatchSocket(int socket, short interest_mask, 
+                                   struct event* e, Watcher* watcher) {
+  pump_libevent()->WatchSocket(socket, interest_mask, e, watcher);
+}
+
+void MessageLoopForIO::UnwatchSocket(struct event* e) {
+  pump_libevent()->UnwatchSocket(e);
+}
+#endif