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// 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.
#ifndef MOJO_EDK_SYSTEM_DATA_PIPE_PRODUCER_DISPATCHER_H_
#define MOJO_EDK_SYSTEM_DATA_PIPE_PRODUCER_DISPATCHER_H_
#include "base/macros.h"
#include "base/memory/ref_counted.h"
#include "mojo/edk/system/dispatcher.h"
#include "mojo/edk/system/system_impl_export.h"
namespace mojo {
namespace system {
class DataPipe;
// This is the |Dispatcher| implementation for the producer handle for data
// pipes (created by the Mojo primitive |MojoCreateDataPipe()|). This class is
// thread-safe.
class MOJO_SYSTEM_IMPL_EXPORT DataPipeProducerDispatcher : public Dispatcher {
public:
DataPipeProducerDispatcher();
// Must be called before any other methods.
void Init(scoped_refptr<DataPipe> data_pipe);
// |Dispatcher| public methods:
Type GetType() const override;
private:
~DataPipeProducerDispatcher() override;
// |Dispatcher| protected methods:
void CancelAllWaitersNoLock() override;
void CloseImplNoLock() override;
scoped_refptr<Dispatcher> CreateEquivalentDispatcherAndCloseImplNoLock()
override;
MojoResult WriteDataImplNoLock(UserPointer<const void> elements,
UserPointer<uint32_t> num_bytes,
MojoWriteDataFlags flags) override;
MojoResult BeginWriteDataImplNoLock(UserPointer<void*> buffer,
UserPointer<uint32_t> buffer_num_bytes,
MojoWriteDataFlags flags) override;
MojoResult EndWriteDataImplNoLock(uint32_t num_bytes_written) override;
HandleSignalsState GetHandleSignalsStateImplNoLock() const override;
MojoResult AddWaiterImplNoLock(Waiter* waiter,
MojoHandleSignals signals,
uint32_t context,
HandleSignalsState* signals_state) override;
void RemoveWaiterImplNoLock(Waiter* waiter,
HandleSignalsState* signals_state) override;
bool IsBusyNoLock() const override;
// Protected by |lock()|:
scoped_refptr<DataPipe> data_pipe_; // This will be null if closed.
DISALLOW_COPY_AND_ASSIGN(DataPipeProducerDispatcher);
};
} // namespace system
} // namespace mojo
#endif // MOJO_EDK_SYSTEM_DATA_PIPE_PRODUCER_DISPATCHER_H_