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Side by Side Diff: mojo/system/data_pipe_producer_dispatcher.h

Issue 621153003: Move mojo edk into mojo/edk (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: fix checkdeps Created 6 years, 2 months ago
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1 // Copyright 2013 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 #ifndef MOJO_SYSTEM_DATA_PIPE_PRODUCER_DISPATCHER_H_
6 #define MOJO_SYSTEM_DATA_PIPE_PRODUCER_DISPATCHER_H_
7
8 #include "base/macros.h"
9 #include "base/memory/ref_counted.h"
10 #include "mojo/system/dispatcher.h"
11 #include "mojo/system/system_impl_export.h"
12
13 namespace mojo {
14 namespace system {
15
16 class DataPipe;
17
18 // This is the |Dispatcher| implementation for the producer handle for data
19 // pipes (created by the Mojo primitive |MojoCreateDataPipe()|). This class is
20 // thread-safe.
21 class MOJO_SYSTEM_IMPL_EXPORT DataPipeProducerDispatcher : public Dispatcher {
22 public:
23 DataPipeProducerDispatcher();
24
25 // Must be called before any other methods.
26 void Init(scoped_refptr<DataPipe> data_pipe);
27
28 // |Dispatcher| public methods:
29 virtual Type GetType() const override;
30
31 private:
32 virtual ~DataPipeProducerDispatcher();
33
34 // |Dispatcher| protected methods:
35 virtual void CancelAllWaitersNoLock() override;
36 virtual void CloseImplNoLock() override;
37 virtual scoped_refptr<Dispatcher>
38 CreateEquivalentDispatcherAndCloseImplNoLock() override;
39 virtual MojoResult WriteDataImplNoLock(UserPointer<const void> elements,
40 UserPointer<uint32_t> num_bytes,
41 MojoWriteDataFlags flags) override;
42 virtual MojoResult BeginWriteDataImplNoLock(
43 UserPointer<void*> buffer,
44 UserPointer<uint32_t> buffer_num_bytes,
45 MojoWriteDataFlags flags) override;
46 virtual MojoResult EndWriteDataImplNoLock(
47 uint32_t num_bytes_written) override;
48 virtual HandleSignalsState GetHandleSignalsStateImplNoLock() const override;
49 virtual MojoResult AddWaiterImplNoLock(
50 Waiter* waiter,
51 MojoHandleSignals signals,
52 uint32_t context,
53 HandleSignalsState* signals_state) override;
54 virtual void RemoveWaiterImplNoLock(
55 Waiter* waiter,
56 HandleSignalsState* signals_state) override;
57 virtual bool IsBusyNoLock() const override;
58
59 // Protected by |lock()|:
60 scoped_refptr<DataPipe> data_pipe_; // This will be null if closed.
61
62 DISALLOW_COPY_AND_ASSIGN(DataPipeProducerDispatcher);
63 };
64
65 } // namespace system
66 } // namespace mojo
67
68 #endif // MOJO_SYSTEM_DATA_PIPE_PRODUCER_DISPATCHER_H_
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