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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" |
| (...skipping 25 matching lines...) Expand all Loading... |
| 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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