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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/transport_data.h" | 5 #include "mojo/edk/system/transport_data.h" |
6 | 6 |
| 7 #include <utility> |
| 8 |
7 #include "base/logging.h" | 9 #include "base/logging.h" |
8 #include "mojo/edk/system/configuration.h" | 10 #include "mojo/edk/system/configuration.h" |
9 #include "mojo/edk/system/message_in_transit.h" | 11 #include "mojo/edk/system/message_in_transit.h" |
10 #include "mojo/edk/system/raw_channel.h" | 12 #include "mojo/edk/system/raw_channel.h" |
11 | 13 |
12 namespace mojo { | 14 namespace mojo { |
13 namespace edk { | 15 namespace edk { |
14 | 16 |
15 // The maximum amount of space needed per platform handle. | 17 // The maximum amount of space needed per platform handle. |
16 // (|{Channel,RawChannel}::GetSerializedPlatformHandleSize()| should always | 18 // (|{Channel,RawChannel}::GetSerializedPlatformHandleSize()| should always |
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179 current_offset = MessageInTransit::RoundUpMessageAlignment(current_offset); | 181 current_offset = MessageInTransit::RoundUpMessageAlignment(current_offset); |
180 } | 182 } |
181 | 183 |
182 // There's no aligned realloc, so it's no good way to release unused space (if | 184 // There's no aligned realloc, so it's no good way to release unused space (if |
183 // we overshot our estimated space requirements). | 185 // we overshot our estimated space requirements). |
184 buffer_size_ = current_offset; | 186 buffer_size_ = current_offset; |
185 | 187 |
186 // |dispatchers_| will be destroyed as it goes out of scope. | 188 // |dispatchers_| will be destroyed as it goes out of scope. |
187 } | 189 } |
188 | 190 |
189 TransportData::TransportData( | 191 TransportData::TransportData(ScopedPlatformHandleVectorPtr platform_handles, |
190 ScopedPlatformHandleVectorPtr platform_handles, | 192 size_t serialized_platform_handle_size) |
191 size_t serialized_platform_handle_size) | 193 : buffer_size_(), platform_handles_(std::move(platform_handles)) { |
192 : buffer_size_(), platform_handles_(platform_handles.Pass()) { | |
193 buffer_size_ = MessageInTransit::RoundUpMessageAlignment( | 194 buffer_size_ = MessageInTransit::RoundUpMessageAlignment( |
194 sizeof(Header) + | 195 sizeof(Header) + |
195 platform_handles_->size() * serialized_platform_handle_size); | 196 platform_handles_->size() * serialized_platform_handle_size); |
196 buffer_.reset(static_cast<char*>( | 197 buffer_.reset(static_cast<char*>( |
197 base::AlignedAlloc(buffer_size_, MessageInTransit::kMessageAlignment))); | 198 base::AlignedAlloc(buffer_size_, MessageInTransit::kMessageAlignment))); |
198 memset(buffer_.get(), 0, buffer_size_); | 199 memset(buffer_.get(), 0, buffer_size_); |
199 | 200 |
200 Header* header = reinterpret_cast<Header*>(buffer_.get()); | 201 Header* header = reinterpret_cast<Header*>(buffer_.get()); |
201 header->platform_handle_table_offset = static_cast<uint32_t>(sizeof(Header)); | 202 header->platform_handle_table_offset = static_cast<uint32_t>(sizeof(Header)); |
202 header->num_platform_handles = | 203 header->num_platform_handles = |
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319 // Should already have been checked by |ValidateBuffer()|: | 320 // Should already have been checked by |ValidateBuffer()|: |
320 DCHECK_EQ(offset % MessageInTransit::kMessageAlignment, 0u); | 321 DCHECK_EQ(offset % MessageInTransit::kMessageAlignment, 0u); |
321 DCHECK_LE(offset, buffer_size); | 322 DCHECK_LE(offset, buffer_size); |
322 DCHECK_LE(offset + size, buffer_size); | 323 DCHECK_LE(offset + size, buffer_size); |
323 | 324 |
324 const void* source = static_cast<const char*>(buffer) + offset; | 325 const void* source = static_cast<const char*>(buffer) + offset; |
325 (*dispatchers)[i] = Dispatcher::TransportDataAccess::Deserialize( | 326 (*dispatchers)[i] = Dispatcher::TransportDataAccess::Deserialize( |
326 handle_table[i].type, source, size, platform_handles.get()); | 327 handle_table[i].type, source, size, platform_handles.get()); |
327 } | 328 } |
328 | 329 |
329 return dispatchers.Pass(); | 330 return dispatchers; |
330 } | 331 } |
331 | 332 |
332 } // namespace edk | 333 } // namespace edk |
333 } // namespace mojo | 334 } // namespace mojo |
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