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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 #include "mojo/edk/system/shared_buffer_dispatcher.h" | 5 #include "mojo/edk/system/shared_buffer_dispatcher.h" |
6 | 6 |
7 #include <limits> | 7 #include <limits> |
| 8 #include <utility> |
8 | 9 |
9 #include "base/logging.h" | 10 #include "base/logging.h" |
10 #include "base/memory/scoped_ptr.h" | 11 #include "base/memory/scoped_ptr.h" |
11 #include "mojo/edk/embedder/embedder_internal.h" | 12 #include "mojo/edk/embedder/embedder_internal.h" |
12 #include "mojo/edk/embedder/platform_support.h" | 13 #include "mojo/edk/embedder/platform_support.h" |
13 #include "mojo/edk/system/configuration.h" | 14 #include "mojo/edk/system/configuration.h" |
14 #include "mojo/edk/system/options_validation.h" | 15 #include "mojo/edk/system/options_validation.h" |
15 #include "mojo/public/c/system/macros.h" | 16 #include "mojo/public/c/system/macros.h" |
16 | 17 |
17 namespace mojo { | 18 namespace mojo { |
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69 if (!num_bytes) | 70 if (!num_bytes) |
70 return MOJO_RESULT_INVALID_ARGUMENT; | 71 return MOJO_RESULT_INVALID_ARGUMENT; |
71 if (num_bytes > GetConfiguration().max_shared_memory_num_bytes) | 72 if (num_bytes > GetConfiguration().max_shared_memory_num_bytes) |
72 return MOJO_RESULT_RESOURCE_EXHAUSTED; | 73 return MOJO_RESULT_RESOURCE_EXHAUSTED; |
73 | 74 |
74 scoped_refptr<PlatformSharedBuffer> shared_buffer( | 75 scoped_refptr<PlatformSharedBuffer> shared_buffer( |
75 platform_support->CreateSharedBuffer(static_cast<size_t>(num_bytes))); | 76 platform_support->CreateSharedBuffer(static_cast<size_t>(num_bytes))); |
76 if (!shared_buffer) | 77 if (!shared_buffer) |
77 return MOJO_RESULT_RESOURCE_EXHAUSTED; | 78 return MOJO_RESULT_RESOURCE_EXHAUSTED; |
78 | 79 |
79 *result = CreateInternal(shared_buffer.Pass()); | 80 *result = CreateInternal(std::move(shared_buffer)); |
80 return MOJO_RESULT_OK; | 81 return MOJO_RESULT_OK; |
81 } | 82 } |
82 | 83 |
83 Dispatcher::Type SharedBufferDispatcher::GetType() const { | 84 Dispatcher::Type SharedBufferDispatcher::GetType() const { |
84 return Type::SHARED_BUFFER; | 85 return Type::SHARED_BUFFER; |
85 } | 86 } |
86 | 87 |
87 // static | 88 // static |
88 scoped_refptr<SharedBufferDispatcher> SharedBufferDispatcher::Deserialize( | 89 scoped_refptr<SharedBufferDispatcher> SharedBufferDispatcher::Deserialize( |
89 const void* source, | 90 const void* source, |
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122 // closed even if creation fails. | 123 // closed even if creation fails. |
123 scoped_refptr<PlatformSharedBuffer> shared_buffer( | 124 scoped_refptr<PlatformSharedBuffer> shared_buffer( |
124 internal::g_platform_support->CreateSharedBufferFromHandle( | 125 internal::g_platform_support->CreateSharedBufferFromHandle( |
125 num_bytes, ScopedPlatformHandle(platform_handle))); | 126 num_bytes, ScopedPlatformHandle(platform_handle))); |
126 if (!shared_buffer) { | 127 if (!shared_buffer) { |
127 LOG(ERROR) | 128 LOG(ERROR) |
128 << "Invalid serialized shared buffer dispatcher (invalid num_bytes?)"; | 129 << "Invalid serialized shared buffer dispatcher (invalid num_bytes?)"; |
129 return nullptr; | 130 return nullptr; |
130 } | 131 } |
131 | 132 |
132 return CreateInternal(shared_buffer.Pass()); | 133 return CreateInternal(std::move(shared_buffer)); |
133 } | 134 } |
134 | 135 |
135 SharedBufferDispatcher::SharedBufferDispatcher( | 136 SharedBufferDispatcher::SharedBufferDispatcher( |
136 scoped_refptr<PlatformSharedBuffer> shared_buffer) | 137 scoped_refptr<PlatformSharedBuffer> shared_buffer) |
137 : shared_buffer_(shared_buffer) { | 138 : shared_buffer_(shared_buffer) { |
138 DCHECK(shared_buffer_); | 139 DCHECK(shared_buffer_); |
139 } | 140 } |
140 | 141 |
141 SharedBufferDispatcher::~SharedBufferDispatcher() { | 142 SharedBufferDispatcher::~SharedBufferDispatcher() { |
142 } | 143 } |
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176 void SharedBufferDispatcher::CloseImplNoLock() { | 177 void SharedBufferDispatcher::CloseImplNoLock() { |
177 lock().AssertAcquired(); | 178 lock().AssertAcquired(); |
178 DCHECK(shared_buffer_); | 179 DCHECK(shared_buffer_); |
179 shared_buffer_ = nullptr; | 180 shared_buffer_ = nullptr; |
180 } | 181 } |
181 | 182 |
182 scoped_refptr<Dispatcher> | 183 scoped_refptr<Dispatcher> |
183 SharedBufferDispatcher::CreateEquivalentDispatcherAndCloseImplNoLock() { | 184 SharedBufferDispatcher::CreateEquivalentDispatcherAndCloseImplNoLock() { |
184 lock().AssertAcquired(); | 185 lock().AssertAcquired(); |
185 DCHECK(shared_buffer_); | 186 DCHECK(shared_buffer_); |
186 return CreateInternal(shared_buffer_.Pass()); | 187 return CreateInternal(std::move(shared_buffer_)); |
187 } | 188 } |
188 | 189 |
189 MojoResult SharedBufferDispatcher::DuplicateBufferHandleImplNoLock( | 190 MojoResult SharedBufferDispatcher::DuplicateBufferHandleImplNoLock( |
190 const MojoDuplicateBufferHandleOptions* options, | 191 const MojoDuplicateBufferHandleOptions* options, |
191 scoped_refptr<Dispatcher>* new_dispatcher) { | 192 scoped_refptr<Dispatcher>* new_dispatcher) { |
192 lock().AssertAcquired(); | 193 lock().AssertAcquired(); |
193 | 194 |
194 MojoDuplicateBufferHandleOptions validated_options; | 195 MojoDuplicateBufferHandleOptions validated_options; |
195 MojoResult result = ValidateDuplicateOptions(options, &validated_options); | 196 MojoResult result = ValidateDuplicateOptions(options, &validated_options); |
196 if (result != MOJO_RESULT_OK) | 197 if (result != MOJO_RESULT_OK) |
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259 *actual_size = sizeof(SerializedSharedBufferDispatcher); | 260 *actual_size = sizeof(SerializedSharedBufferDispatcher); |
260 | 261 |
261 shared_buffer_ = nullptr; | 262 shared_buffer_ = nullptr; |
262 | 263 |
263 return true; | 264 return true; |
264 } | 265 } |
265 | 266 |
266 | 267 |
267 } // namespace edk | 268 } // namespace edk |
268 } // namespace mojo | 269 } // namespace mojo |
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