Gather trace data by waiting on handles with a fixed timeout

mojo/common/data_pipe_utils.cc

Index: mojo/common/data_pipe_utils.cc
diff --git a/mojo/common/data_pipe_utils.cc b/mojo/common/data_pipe_utils.cc
index 9174cbb8b5a41cc9cda19150c6cabdfc87749918..60f323069ff6904fe47caa784922892f6ffaad83 100644
--- a/mojo/common/data_pipe_utils.cc
+++ b/mojo/common/data_pipe_utils.cc
@@ -93,6 +93,8 @@ bool MOJO_COMMON_EXPORT BlockingCopyFromString(
         char_buffer[byte_index++] = *it++;
       }
       EndWriteDataRaw(destination.get(), byte_index);
+      if (it == source.end())

[viettrungluu, 2015/04/02 19:54:12]

If we want to keep this function around, we really should have some tests for
it....

+        return true;
     } else if (result == MOJO_RESULT_SHOULD_WAIT) {
       result = Wait(destination.get(), MOJO_HANDLE_SIGNAL_WRITABLE,
                     MOJO_DEADLINE_INDEFINITE, nullptr);