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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 #include "mojo/system/data_pipe_producer_dispatcher.h" | |
6 | |
7 #include "base/logging.h" | |
8 #include "mojo/system/data_pipe.h" | |
9 #include "mojo/system/memory.h" | |
10 | |
11 namespace mojo { | |
12 namespace system { | |
13 | |
14 DataPipeProducerDispatcher::DataPipeProducerDispatcher() { | |
15 } | |
16 | |
17 void DataPipeProducerDispatcher::Init(scoped_refptr<DataPipe> data_pipe) { | |
18 DCHECK(data_pipe.get()); | |
19 data_pipe_ = data_pipe; | |
20 } | |
21 | |
22 Dispatcher::Type DataPipeProducerDispatcher::GetType() const { | |
23 return kTypeDataPipeProducer; | |
24 } | |
25 | |
26 DataPipeProducerDispatcher::~DataPipeProducerDispatcher() { | |
27 // |Close()|/|CloseImplNoLock()| should have taken care of the pipe. | |
28 DCHECK(!data_pipe_.get()); | |
29 } | |
30 | |
31 void DataPipeProducerDispatcher::CancelAllWaitersNoLock() { | |
32 lock().AssertAcquired(); | |
33 data_pipe_->ProducerCancelAllWaiters(); | |
34 } | |
35 | |
36 void DataPipeProducerDispatcher::CloseImplNoLock() { | |
37 lock().AssertAcquired(); | |
38 data_pipe_->ProducerClose(); | |
39 data_pipe_ = nullptr; | |
40 } | |
41 | |
42 scoped_refptr<Dispatcher> | |
43 DataPipeProducerDispatcher::CreateEquivalentDispatcherAndCloseImplNoLock() { | |
44 lock().AssertAcquired(); | |
45 | |
46 scoped_refptr<DataPipeProducerDispatcher> rv = | |
47 new DataPipeProducerDispatcher(); | |
48 rv->Init(data_pipe_); | |
49 data_pipe_ = nullptr; | |
50 return scoped_refptr<Dispatcher>(rv.get()); | |
51 } | |
52 | |
53 MojoResult DataPipeProducerDispatcher::WriteDataImplNoLock( | |
54 UserPointer<const void> elements, | |
55 UserPointer<uint32_t> num_bytes, | |
56 MojoWriteDataFlags flags) { | |
57 lock().AssertAcquired(); | |
58 return data_pipe_->ProducerWriteData( | |
59 elements, num_bytes, (flags & MOJO_WRITE_DATA_FLAG_ALL_OR_NONE)); | |
60 } | |
61 | |
62 MojoResult DataPipeProducerDispatcher::BeginWriteDataImplNoLock( | |
63 UserPointer<void*> buffer, | |
64 UserPointer<uint32_t> buffer_num_bytes, | |
65 MojoWriteDataFlags flags) { | |
66 lock().AssertAcquired(); | |
67 | |
68 return data_pipe_->ProducerBeginWriteData( | |
69 buffer, buffer_num_bytes, (flags & MOJO_WRITE_DATA_FLAG_ALL_OR_NONE)); | |
70 } | |
71 | |
72 MojoResult DataPipeProducerDispatcher::EndWriteDataImplNoLock( | |
73 uint32_t num_bytes_written) { | |
74 lock().AssertAcquired(); | |
75 | |
76 return data_pipe_->ProducerEndWriteData(num_bytes_written); | |
77 } | |
78 | |
79 HandleSignalsState DataPipeProducerDispatcher::GetHandleSignalsStateImplNoLock() | |
80 const { | |
81 lock().AssertAcquired(); | |
82 return data_pipe_->ProducerGetHandleSignalsState(); | |
83 } | |
84 | |
85 MojoResult DataPipeProducerDispatcher::AddWaiterImplNoLock( | |
86 Waiter* waiter, | |
87 MojoHandleSignals signals, | |
88 uint32_t context, | |
89 HandleSignalsState* signals_state) { | |
90 lock().AssertAcquired(); | |
91 return data_pipe_->ProducerAddWaiter(waiter, signals, context, signals_state); | |
92 } | |
93 | |
94 void DataPipeProducerDispatcher::RemoveWaiterImplNoLock( | |
95 Waiter* waiter, | |
96 HandleSignalsState* signals_state) { | |
97 lock().AssertAcquired(); | |
98 data_pipe_->ProducerRemoveWaiter(waiter, signals_state); | |
99 } | |
100 | |
101 bool DataPipeProducerDispatcher::IsBusyNoLock() const { | |
102 lock().AssertAcquired(); | |
103 return data_pipe_->ProducerIsBusy(); | |
104 } | |
105 | |
106 } // namespace system | |
107 } // namespace mojo | |
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