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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_EDK_SYSTEM_LOCAL_DATA_PIPE_IMPL_H_ | 5 #ifndef MOJO_EDK_SYSTEM_LOCAL_DATA_PIPE_IMPL_H_ |
6 #define MOJO_EDK_SYSTEM_LOCAL_DATA_PIPE_IMPL_H_ | 6 #define MOJO_EDK_SYSTEM_LOCAL_DATA_PIPE_IMPL_H_ |
7 | 7 |
8 #include <memory> | 8 #include <memory> |
9 | 9 |
10 #include "base/memory/aligned_memory.h" | 10 #include "base/memory/aligned_memory.h" |
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36 UserPointer<uint32_t> buffer_num_bytes) override; | 36 UserPointer<uint32_t> buffer_num_bytes) override; |
37 MojoResult ProducerEndWriteData(uint32_t num_bytes_written) override; | 37 MojoResult ProducerEndWriteData(uint32_t num_bytes_written) override; |
38 HandleSignalsState ProducerGetHandleSignalsState() const override; | 38 HandleSignalsState ProducerGetHandleSignalsState() const override; |
39 void ProducerStartSerialize(Channel* channel, | 39 void ProducerStartSerialize(Channel* channel, |
40 size_t* max_size, | 40 size_t* max_size, |
41 size_t* max_platform_handles) override; | 41 size_t* max_platform_handles) override; |
42 bool ProducerEndSerialize( | 42 bool ProducerEndSerialize( |
43 Channel* channel, | 43 Channel* channel, |
44 void* destination, | 44 void* destination, |
45 size_t* actual_size, | 45 size_t* actual_size, |
46 std::vector<embedder::ScopedPlatformHandle>* platform_handles) override; | 46 std::vector<platform::ScopedPlatformHandle>* platform_handles) override; |
47 void ConsumerClose() override; | 47 void ConsumerClose() override; |
48 MojoResult ConsumerReadData(UserPointer<void> elements, | 48 MojoResult ConsumerReadData(UserPointer<void> elements, |
49 UserPointer<uint32_t> num_bytes, | 49 UserPointer<uint32_t> num_bytes, |
50 uint32_t max_num_bytes_to_read, | 50 uint32_t max_num_bytes_to_read, |
51 uint32_t min_num_bytes_to_read, | 51 uint32_t min_num_bytes_to_read, |
52 bool peek) override; | 52 bool peek) override; |
53 MojoResult ConsumerDiscardData(UserPointer<uint32_t> num_bytes, | 53 MojoResult ConsumerDiscardData(UserPointer<uint32_t> num_bytes, |
54 uint32_t max_num_bytes_to_discard, | 54 uint32_t max_num_bytes_to_discard, |
55 uint32_t min_num_bytes_to_discard) override; | 55 uint32_t min_num_bytes_to_discard) override; |
56 MojoResult ConsumerQueryData(UserPointer<uint32_t> num_bytes) override; | 56 MojoResult ConsumerQueryData(UserPointer<uint32_t> num_bytes) override; |
57 MojoResult ConsumerBeginReadData( | 57 MojoResult ConsumerBeginReadData( |
58 UserPointer<const void*> buffer, | 58 UserPointer<const void*> buffer, |
59 UserPointer<uint32_t> buffer_num_bytes) override; | 59 UserPointer<uint32_t> buffer_num_bytes) override; |
60 MojoResult ConsumerEndReadData(uint32_t num_bytes_read) override; | 60 MojoResult ConsumerEndReadData(uint32_t num_bytes_read) override; |
61 HandleSignalsState ConsumerGetHandleSignalsState() const override; | 61 HandleSignalsState ConsumerGetHandleSignalsState() const override; |
62 void ConsumerStartSerialize(Channel* channel, | 62 void ConsumerStartSerialize(Channel* channel, |
63 size_t* max_size, | 63 size_t* max_size, |
64 size_t* max_platform_handles) override; | 64 size_t* max_platform_handles) override; |
65 bool ConsumerEndSerialize( | 65 bool ConsumerEndSerialize( |
66 Channel* channel, | 66 Channel* channel, |
67 void* destination, | 67 void* destination, |
68 size_t* actual_size, | 68 size_t* actual_size, |
69 std::vector<embedder::ScopedPlatformHandle>* platform_handles) override; | 69 std::vector<platform::ScopedPlatformHandle>* platform_handles) override; |
70 bool OnReadMessage(unsigned port, MessageInTransit* message) override; | 70 bool OnReadMessage(unsigned port, MessageInTransit* message) override; |
71 void OnDetachFromChannel(unsigned port) override; | 71 void OnDetachFromChannel(unsigned port) override; |
72 | 72 |
73 void EnsureBuffer(); | 73 void EnsureBuffer(); |
74 void DestroyBuffer(); | 74 void DestroyBuffer(); |
75 | 75 |
76 // Get the maximum (single) write/read size right now (in number of elements); | 76 // Get the maximum (single) write/read size right now (in number of elements); |
77 // result fits in a |uint32_t|. | 77 // result fits in a |uint32_t|. |
78 size_t GetMaxNumBytesToWrite(); | 78 size_t GetMaxNumBytesToWrite(); |
79 size_t GetMaxNumBytesToRead(); | 79 size_t GetMaxNumBytesToRead(); |
80 | 80 |
81 // Marks the given number of bytes as consumed/discarded. |num_bytes| must be | 81 // Marks the given number of bytes as consumed/discarded. |num_bytes| must be |
82 // no greater than |current_num_bytes_|. | 82 // no greater than |current_num_bytes_|. |
83 void MarkDataAsConsumed(size_t num_bytes); | 83 void MarkDataAsConsumed(size_t num_bytes); |
84 | 84 |
85 std::unique_ptr<char, base::AlignedFreeDeleter> buffer_; | 85 std::unique_ptr<char, base::AlignedFreeDeleter> buffer_; |
86 // Circular buffer. | 86 // Circular buffer. |
87 size_t start_index_; | 87 size_t start_index_; |
88 size_t current_num_bytes_; | 88 size_t current_num_bytes_; |
89 | 89 |
90 MOJO_DISALLOW_COPY_AND_ASSIGN(LocalDataPipeImpl); | 90 MOJO_DISALLOW_COPY_AND_ASSIGN(LocalDataPipeImpl); |
91 }; | 91 }; |
92 | 92 |
93 } // namespace system | 93 } // namespace system |
94 } // namespace mojo | 94 } // namespace mojo |
95 | 95 |
96 #endif // MOJO_EDK_SYSTEM_LOCAL_DATA_PIPE_IMPL_H_ | 96 #endif // MOJO_EDK_SYSTEM_LOCAL_DATA_PIPE_IMPL_H_ |
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