Added more logging in debug builds for some failure passes, hopefully this

  will let us figure out why we see so mainly unittest failures on the mac
  but never seem to be able to repro locally.
Review URL: http://codereview.chromium.org/18378

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@8316 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 10 insertions, 3 deletions

diff --git a/base/message_pump_libevent.cc b/base/message_pump_libevent.cc
index f31c01b..7e7f8d5 100644
--- a/base/message_pump_libevent.cc
+++ b/base/message_pump_libevent.cc
@@ -5,6 +5,7 @@
 #include "base/message_pump_libevent.h"
 
 #include <fcntl.h>
+#include <errno.h>
 
 #include "base/logging.h"
 #include "base/scoped_nsautorelease_pool.h"
@@ -81,12 +82,18 @@ MessagePumpLibevent::MessagePumpLibevent()
 
 bool MessagePumpLibevent::Init() {
   int fds[2];
-  if (pipe(fds))
+  if (pipe(fds)) {
+    DLOG(ERROR) << "pipe() failed, errno: " << errno;
     return false;
-  if (SetNonBlocking(fds[0]))
+  }
+  if (SetNonBlocking(fds[0])) {
+    DLOG(ERROR) << "SetNonBlocking for pipe fd[0] failed, errno: " << errno;
     return false;
-  if (SetNonBlocking(fds[1]))
+  }
+  if (SetNonBlocking(fds[1])) {
+    DLOG(ERROR) << "SetNonBlocking for pipe fd[1] failed, errno: " << errno;
     return false;
+  }
   wakeup_pipe_out_ = fds[0];
   wakeup_pipe_in_ = fds[1];