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Side by Side Diff: mojo/edk/system/data_pipe_consumer_dispatcher.h

Issue 814543006: Move //mojo/{public, edk} underneath //third_party (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: Rebase Created 5 years, 11 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_EDK_SYSTEM_DATA_PIPE_CONSUMER_DISPATCHER_H_
6 #define MOJO_EDK_SYSTEM_DATA_PIPE_CONSUMER_DISPATCHER_H_
7
8 #include "base/macros.h"
9 #include "base/memory/ref_counted.h"
10 #include "mojo/edk/system/dispatcher.h"
11 #include "mojo/edk/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 consumer handle for data
19 // pipes (created by the Mojo primitive |MojoCreateDataPipe()|). This class is
20 // thread-safe.
21 class MOJO_SYSTEM_IMPL_EXPORT DataPipeConsumerDispatcher : public Dispatcher {
22 public:
23 DataPipeConsumerDispatcher();
24
25 // Must be called before any other methods.
26 void Init(scoped_refptr<DataPipe> data_pipe);
27
28 // |Dispatcher| public methods:
29 Type GetType() const override;
30
31 private:
32 ~DataPipeConsumerDispatcher() override;
33
34 // |Dispatcher| protected methods:
35 void CancelAllAwakablesNoLock() override;
36 void CloseImplNoLock() override;
37 scoped_refptr<Dispatcher> CreateEquivalentDispatcherAndCloseImplNoLock()
38 override;
39 MojoResult ReadDataImplNoLock(UserPointer<void> elements,
40 UserPointer<uint32_t> num_bytes,
41 MojoReadDataFlags flags) override;
42 MojoResult BeginReadDataImplNoLock(UserPointer<const void*> buffer,
43 UserPointer<uint32_t> buffer_num_bytes,
44 MojoReadDataFlags flags) override;
45 MojoResult EndReadDataImplNoLock(uint32_t num_bytes_read) override;
46 HandleSignalsState GetHandleSignalsStateImplNoLock() const override;
47 MojoResult AddAwakableImplNoLock(Awakable* awakable,
48 MojoHandleSignals signals,
49 uint32_t context,
50 HandleSignalsState* signals_state) override;
51 void RemoveAwakableImplNoLock(Awakable* awakable,
52 HandleSignalsState* signals_state) override;
53 bool IsBusyNoLock() const override;
54
55 // Protected by |lock()|:
56 scoped_refptr<DataPipe> data_pipe_; // This will be null if closed.
57
58 DISALLOW_COPY_AND_ASSIGN(DataPipeConsumerDispatcher);
59 };
60
61 } // namespace system
62 } // namespace mojo
63
64 #endif // MOJO_EDK_SYSTEM_DATA_PIPE_CONSUMER_DISPATCHER_H_
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