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| 1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 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_SHARED_BUFFER_DISPATCHER_H_ | 5 #ifndef MOJO_SYSTEM_SHARED_BUFFER_DISPATCHER_H_ |
| 6 #define MOJO_SYSTEM_SHARED_BUFFER_DISPATCHER_H_ | 6 #define MOJO_SYSTEM_SHARED_BUFFER_DISPATCHER_H_ |
| 7 | 7 |
| 8 #include "base/macros.h" | 8 #include "base/macros.h" |
| 9 #include "mojo/embedder/platform_shared_buffer.h" | 9 #include "mojo/embedder/platform_shared_buffer.h" |
| 10 #include "mojo/system/memory.h" | 10 #include "mojo/system/memory.h" |
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| 40 | 40 |
| 41 // Static factory method: |validated_options| must be validated (obviously). | 41 // Static factory method: |validated_options| must be validated (obviously). |
| 42 // On failure, |*result| will be left as-is. | 42 // On failure, |*result| will be left as-is. |
| 43 static MojoResult Create( | 43 static MojoResult Create( |
| 44 embedder::PlatformSupport* platform_support, | 44 embedder::PlatformSupport* platform_support, |
| 45 const MojoCreateSharedBufferOptions& validated_options, | 45 const MojoCreateSharedBufferOptions& validated_options, |
| 46 uint64_t num_bytes, | 46 uint64_t num_bytes, |
| 47 scoped_refptr<SharedBufferDispatcher>* result); | 47 scoped_refptr<SharedBufferDispatcher>* result); |
| 48 | 48 |
| 49 // |Dispatcher| public methods: | 49 // |Dispatcher| public methods: |
| 50 virtual Type GetType() const OVERRIDE; | 50 virtual Type GetType() const override; |
| 51 | 51 |
| 52 // The "opposite" of |SerializeAndClose()|. (Typically this is called by | 52 // The "opposite" of |SerializeAndClose()|. (Typically this is called by |
| 53 // |Dispatcher::Deserialize()|.) | 53 // |Dispatcher::Deserialize()|.) |
| 54 static scoped_refptr<SharedBufferDispatcher> Deserialize( | 54 static scoped_refptr<SharedBufferDispatcher> Deserialize( |
| 55 Channel* channel, | 55 Channel* channel, |
| 56 const void* source, | 56 const void* source, |
| 57 size_t size, | 57 size_t size, |
| 58 embedder::PlatformHandleVector* platform_handles); | 58 embedder::PlatformHandleVector* platform_handles); |
| 59 | 59 |
| 60 private: | 60 private: |
| 61 explicit SharedBufferDispatcher( | 61 explicit SharedBufferDispatcher( |
| 62 scoped_refptr<embedder::PlatformSharedBuffer> shared_buffer_); | 62 scoped_refptr<embedder::PlatformSharedBuffer> shared_buffer_); |
| 63 virtual ~SharedBufferDispatcher(); | 63 virtual ~SharedBufferDispatcher(); |
| 64 | 64 |
| 65 // Validates and/or sets default options for | 65 // Validates and/or sets default options for |
| 66 // |MojoDuplicateBufferHandleOptions|. If non-null, |in_options| must point to | 66 // |MojoDuplicateBufferHandleOptions|. If non-null, |in_options| must point to |
| 67 // a struct of at least |in_options->struct_size| bytes. |out_options| must | 67 // a struct of at least |in_options->struct_size| bytes. |out_options| must |
| 68 // point to a (current) |MojoDuplicateBufferHandleOptions| and will be | 68 // point to a (current) |MojoDuplicateBufferHandleOptions| and will be |
| 69 // entirely overwritten on success (it may be partly overwritten on failure). | 69 // entirely overwritten on success (it may be partly overwritten on failure). |
| 70 static MojoResult ValidateDuplicateOptions( | 70 static MojoResult ValidateDuplicateOptions( |
| 71 UserPointer<const MojoDuplicateBufferHandleOptions> in_options, | 71 UserPointer<const MojoDuplicateBufferHandleOptions> in_options, |
| 72 MojoDuplicateBufferHandleOptions* out_options); | 72 MojoDuplicateBufferHandleOptions* out_options); |
| 73 | 73 |
| 74 // |Dispatcher| protected methods: | 74 // |Dispatcher| protected methods: |
| 75 virtual void CloseImplNoLock() OVERRIDE; | 75 virtual void CloseImplNoLock() override; |
| 76 virtual scoped_refptr<Dispatcher> | 76 virtual scoped_refptr<Dispatcher> |
| 77 CreateEquivalentDispatcherAndCloseImplNoLock() OVERRIDE; | 77 CreateEquivalentDispatcherAndCloseImplNoLock() override; |
| 78 virtual MojoResult DuplicateBufferHandleImplNoLock( | 78 virtual MojoResult DuplicateBufferHandleImplNoLock( |
| 79 UserPointer<const MojoDuplicateBufferHandleOptions> options, | 79 UserPointer<const MojoDuplicateBufferHandleOptions> options, |
| 80 scoped_refptr<Dispatcher>* new_dispatcher) OVERRIDE; | 80 scoped_refptr<Dispatcher>* new_dispatcher) override; |
| 81 virtual MojoResult MapBufferImplNoLock( | 81 virtual MojoResult MapBufferImplNoLock( |
| 82 uint64_t offset, | 82 uint64_t offset, |
| 83 uint64_t num_bytes, | 83 uint64_t num_bytes, |
| 84 MojoMapBufferFlags flags, | 84 MojoMapBufferFlags flags, |
| 85 scoped_ptr<embedder::PlatformSharedBufferMapping>* mapping) OVERRIDE; | 85 scoped_ptr<embedder::PlatformSharedBufferMapping>* mapping) override; |
| 86 virtual void StartSerializeImplNoLock(Channel* channel, | 86 virtual void StartSerializeImplNoLock(Channel* channel, |
| 87 size_t* max_size, | 87 size_t* max_size, |
| 88 size_t* max_platform_handles) OVERRIDE; | 88 size_t* max_platform_handles) override; |
| 89 virtual bool EndSerializeAndCloseImplNoLock( | 89 virtual bool EndSerializeAndCloseImplNoLock( |
| 90 Channel* channel, | 90 Channel* channel, |
| 91 void* destination, | 91 void* destination, |
| 92 size_t* actual_size, | 92 size_t* actual_size, |
| 93 embedder::PlatformHandleVector* platform_handles) OVERRIDE; | 93 embedder::PlatformHandleVector* platform_handles) override; |
| 94 | 94 |
| 95 scoped_refptr<embedder::PlatformSharedBuffer> shared_buffer_; | 95 scoped_refptr<embedder::PlatformSharedBuffer> shared_buffer_; |
| 96 | 96 |
| 97 DISALLOW_COPY_AND_ASSIGN(SharedBufferDispatcher); | 97 DISALLOW_COPY_AND_ASSIGN(SharedBufferDispatcher); |
| 98 }; | 98 }; |
| 99 | 99 |
| 100 } // namespace system | 100 } // namespace system |
| 101 } // namespace mojo | 101 } // namespace mojo |
| 102 | 102 |
| 103 #endif // MOJO_SYSTEM_SHARED_BUFFER_DISPATCHER_H_ | 103 #endif // MOJO_SYSTEM_SHARED_BUFFER_DISPATCHER_H_ |
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