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1 // Copyright 2013 The Chromium Authors. All rights reserved. | 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 | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef MOJO_SYSTEM_DATA_PIPE_H_ | 5 #ifndef MOJO_SYSTEM_DATA_PIPE_H_ |
6 #define MOJO_SYSTEM_DATA_PIPE_H_ | 6 #define MOJO_SYSTEM_DATA_PIPE_H_ |
7 | 7 |
8 #include <stdint.h> | 8 #include <stdint.h> |
9 | 9 |
10 #include "base/macros.h" | 10 #include "base/macros.h" |
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53 // a multiple of |element_num_bytes_|. | 53 // a multiple of |element_num_bytes_|. |
54 MojoResult ProducerWriteData(const void* elements, | 54 MojoResult ProducerWriteData(const void* elements, |
55 uint32_t* num_bytes, | 55 uint32_t* num_bytes, |
56 bool all_or_none); | 56 bool all_or_none); |
57 // This does not validate its arguments. | 57 // This does not validate its arguments. |
58 MojoResult ProducerBeginWriteData(void** buffer, | 58 MojoResult ProducerBeginWriteData(void** buffer, |
59 uint32_t* buffer_num_bytes, | 59 uint32_t* buffer_num_bytes, |
60 bool all_or_none); | 60 bool all_or_none); |
61 MojoResult ProducerEndWriteData(uint32_t num_bytes_written); | 61 MojoResult ProducerEndWriteData(uint32_t num_bytes_written); |
62 MojoResult ProducerAddWaiter(Waiter* waiter, | 62 MojoResult ProducerAddWaiter(Waiter* waiter, |
63 MojoWaitFlags flags, | 63 MojoHandleSignals signals, |
64 uint32_t context); | 64 uint32_t context); |
65 void ProducerRemoveWaiter(Waiter* waiter); | 65 void ProducerRemoveWaiter(Waiter* waiter); |
66 bool ProducerIsBusy() const; | 66 bool ProducerIsBusy() const; |
67 | 67 |
68 // These are called by the consumer dispatcher to implement its methods of | 68 // These are called by the consumer dispatcher to implement its methods of |
69 // corresponding names. | 69 // corresponding names. |
70 void ConsumerCancelAllWaiters(); | 70 void ConsumerCancelAllWaiters(); |
71 void ConsumerClose(); | 71 void ConsumerClose(); |
72 // This does not validate its arguments, except to check that |*num_bytes| is | 72 // This does not validate its arguments, except to check that |*num_bytes| is |
73 // a multiple of |element_num_bytes_|. | 73 // a multiple of |element_num_bytes_|. |
74 MojoResult ConsumerReadData(void* elements, | 74 MojoResult ConsumerReadData(void* elements, |
75 uint32_t* num_bytes, | 75 uint32_t* num_bytes, |
76 bool all_or_none); | 76 bool all_or_none); |
77 MojoResult ConsumerDiscardData(uint32_t* num_bytes, | 77 MojoResult ConsumerDiscardData(uint32_t* num_bytes, |
78 bool all_or_none); | 78 bool all_or_none); |
79 MojoResult ConsumerQueryData(uint32_t* num_bytes); | 79 MojoResult ConsumerQueryData(uint32_t* num_bytes); |
80 // This does not validate its arguments. | 80 // This does not validate its arguments. |
81 MojoResult ConsumerBeginReadData(const void** buffer, | 81 MojoResult ConsumerBeginReadData(const void** buffer, |
82 uint32_t* buffer_num_bytes, | 82 uint32_t* buffer_num_bytes, |
83 bool all_or_none); | 83 bool all_or_none); |
84 MojoResult ConsumerEndReadData(uint32_t num_bytes_read); | 84 MojoResult ConsumerEndReadData(uint32_t num_bytes_read); |
85 MojoResult ConsumerAddWaiter(Waiter* waiter, | 85 MojoResult ConsumerAddWaiter(Waiter* waiter, |
86 MojoWaitFlags flags, | 86 MojoHandleSignals signals, |
87 uint32_t context); | 87 uint32_t context); |
88 void ConsumerRemoveWaiter(Waiter* waiter); | 88 void ConsumerRemoveWaiter(Waiter* waiter); |
89 bool ConsumerIsBusy() const; | 89 bool ConsumerIsBusy() const; |
90 | 90 |
91 protected: | 91 protected: |
92 DataPipe(bool has_local_producer, | 92 DataPipe(bool has_local_producer, |
93 bool has_local_consumer, | 93 bool has_local_consumer, |
94 const MojoCreateDataPipeOptions& validated_options); | 94 const MojoCreateDataPipeOptions& validated_options); |
95 | 95 |
96 friend class base::RefCountedThreadSafe<DataPipe>; | 96 friend class base::RefCountedThreadSafe<DataPipe>; |
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196 uint32_t producer_two_phase_max_num_bytes_written_; | 196 uint32_t producer_two_phase_max_num_bytes_written_; |
197 uint32_t consumer_two_phase_max_num_bytes_read_; | 197 uint32_t consumer_two_phase_max_num_bytes_read_; |
198 | 198 |
199 DISALLOW_COPY_AND_ASSIGN(DataPipe); | 199 DISALLOW_COPY_AND_ASSIGN(DataPipe); |
200 }; | 200 }; |
201 | 201 |
202 } // namespace system | 202 } // namespace system |
203 } // namespace mojo | 203 } // namespace mojo |
204 | 204 |
205 #endif // MOJO_SYSTEM_DATA_PIPE_H_ | 205 #endif // MOJO_SYSTEM_DATA_PIPE_H_ |
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