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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/embedder/simple_platform_shared_buffer.h" | 5 #include "mojo/edk/embedder/simple_platform_shared_buffer.h" |
| 6 | 6 |
| 7 #include <stdint.h> | 7 #include <stdint.h> |
| 8 #include <stdio.h> // For |fileno()|. | 8 #include <stdio.h> // For |fileno()|. |
| 9 #include <sys/mman.h> // For |mmap()|/|munmap()|. | 9 #include <sys/mman.h> // For |mmap()|/|munmap()|. |
| 10 #include <sys/stat.h> | 10 #include <sys/stat.h> |
| 11 #include <sys/types.h> // For |off_t|. | 11 #include <sys/types.h> // For |off_t|. |
| 12 #include <unistd.h> | 12 #include <unistd.h> |
| 13 | 13 |
| 14 #include <limits> | 14 #include <limits> |
| 15 #include <utility> | 15 #include <utility> |
| 16 | 16 |
| 17 #include "base/files/file_path.h" | 17 #include "base/files/file_path.h" |
| 18 #include "base/files/file_util.h" | 18 #include "base/files/file_util.h" |
| 19 #include "base/logging.h" | 19 #include "base/logging.h" |
| 20 #include "base/posix/eintr_wrapper.h" | 20 #include "base/posix/eintr_wrapper.h" |
| 21 #include "base/threading/thread_restrictions.h" | 21 #include "base/threading/thread_restrictions.h" |
| 22 #include "build/build_config.h" | 22 #include "build/build_config.h" |
| 23 #include "mojo/edk/embedder/platform_handle_utils.h" | 23 #include "mojo/edk/embedder/platform_handle_utils.h" |
| 24 #include "mojo/edk/util/scoped_file.h" | 24 #include "mojo/edk/util/scoped_file.h" |
| 25 | 25 |
| 26 #if defined(OS_ANDROID) | 26 #if defined(OS_ANDROID) |
| 27 #include "third_party/ashmem/ashmem.h" | 27 #include "third_party/ashmem/ashmem.h" |
| 28 #endif // defined(OS_ANDROID) | 28 #endif // defined(OS_ANDROID) |
| 29 | 29 |
| 30 using mojo::platform::PlatformHandle; |
| 31 using mojo::platform::ScopedPlatformHandle; |
| 30 using mojo::util::RefPtr; | 32 using mojo::util::RefPtr; |
| 31 | 33 |
| 32 // We assume that |size_t| and |off_t| (type for |ftruncate()|) fits in a | 34 // We assume that |size_t| and |off_t| (type for |ftruncate()|) fits in a |
| 33 // |uint64_t|. | 35 // |uint64_t|. |
| 34 static_assert(sizeof(size_t) <= sizeof(uint64_t), "size_t too big"); | 36 static_assert(sizeof(size_t) <= sizeof(uint64_t), "size_t too big"); |
| 35 static_assert(sizeof(off_t) <= sizeof(uint64_t), "off_t too big"); | 37 static_assert(sizeof(off_t) <= sizeof(uint64_t), "off_t too big"); |
| 36 | 38 |
| 37 namespace mojo { | 39 namespace mojo { |
| 38 namespace embedder { | 40 namespace embedder { |
| 39 | 41 |
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| 264 | 266 |
| 265 // SimplePlatformSharedBufferMapping ------------------------------------------- | 267 // SimplePlatformSharedBufferMapping ------------------------------------------- |
| 266 | 268 |
| 267 void SimplePlatformSharedBufferMapping::Unmap() { | 269 void SimplePlatformSharedBufferMapping::Unmap() { |
| 268 int result = munmap(real_base_, real_length_); | 270 int result = munmap(real_base_, real_length_); |
| 269 PLOG_IF(ERROR, result != 0) << "munmap"; | 271 PLOG_IF(ERROR, result != 0) << "munmap"; |
| 270 } | 272 } |
| 271 | 273 |
| 272 } // namespace embedder | 274 } // namespace embedder |
| 273 } // namespace mojo | 275 } // namespace mojo |
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