Upstream version 5.34.104.0

[platform/framework/web/crosswalk.git] / src / mojo / system / data_pipe.h

diff --git a/src/mojo/system/data_pipe.h b/src/mojo/system/data_pipe.h
index 32c77a2..ce4ad2d 100644 (file)
--- a/src/mojo/system/data_pipe.h
+++ b/src/mojo/system/data_pipe.h
@@ -52,6 +52,7 @@ class MOJO_SYSTEM_IMPL_EXPORT DataPipe :
                                MojoWaitFlags flags,
                                MojoResult wake_result);
   void ProducerRemoveWaiter(Waiter* waiter);
+  bool ProducerIsBusy() const;
 
   // These are called by the consumer dispatcher to implement its methods of
   // corresponding names.
@@ -74,6 +75,7 @@ class MOJO_SYSTEM_IMPL_EXPORT DataPipe :
                                MojoWaitFlags flags,
                                MojoResult wake_result);
   void ConsumerRemoveWaiter(Waiter* waiter);
+  bool ConsumerIsBusy() const;
 
  protected:
   DataPipe(bool has_local_producer,
@@ -172,7 +174,7 @@ class MOJO_SYSTEM_IMPL_EXPORT DataPipe :
   const size_t element_num_bytes_;
   const size_t capacity_num_bytes_;
 
-  base::Lock lock_;  // Protects the following members.
+  mutable base::Lock lock_;  // Protects the following members.
   // *Known* state of producer or consumer.
   bool producer_open_;
   bool consumer_open_;