blob: cd24db065f8d03b667156dd2a6c668cd61ba2707 [file] [log] [blame]
// Copyright 2013 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/basictypes.h"
#include "base/compiler_specific.h"
#include "base/memory/ref_counted.h"
#include "mojo/system/dispatcher.h"
#include "mojo/system/system_impl_export.h"
namespace mojo {
namespace system {
class DataPipe;
// This is the |Dispatcher| implementation for the consumer handle for data
// pipes (created by the Mojo primitive |MojoCreateDataPipe()|). This class is
// thread-safe.
class MOJO_SYSTEM_IMPL_EXPORT DataPipeConsumerDispatcher : public Dispatcher {
// Must be called before any other methods.
void Init(scoped_refptr<DataPipe> data_pipe);
friend class base::RefCountedThreadSafe<DataPipeConsumerDispatcher>;
virtual ~DataPipeConsumerDispatcher();
// |Dispatcher| implementation/overrides:
virtual void CancelAllWaitersNoLock() OVERRIDE;
virtual MojoResult CloseImplNoLock() OVERRIDE;
virtual MojoResult ReadDataImplNoLock(void* elements,
uint32_t* num_elements,
MojoReadDataFlags flags) OVERRIDE;
virtual MojoResult BeginReadDataImplNoLock(const void** buffer,
uint32_t* buffer_num_elements,
MojoReadDataFlags flags) OVERRIDE;
virtual MojoResult EndReadDataImplNoLock(uint32_t num_elements_read) OVERRIDE;
virtual MojoResult AddWaiterImplNoLock(Waiter* waiter,
MojoWaitFlags flags,
MojoResult wake_result) OVERRIDE;
virtual void RemoveWaiterImplNoLock(Waiter* waiter) OVERRIDE;
virtual scoped_refptr<Dispatcher>
CreateEquivalentDispatcherAndCloseImplNoLock() OVERRIDE;
// Protected by |lock()|:
scoped_refptr<DataPipe> data_pipe_; // This will be null if closed.
} // namespace system
} // namespace mojo