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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/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 | 15 |
| 16 #include "base/files/file_path.h" | 16 #include "base/files/file_path.h" |
| 17 #include "base/files/file_util.h" | 17 #include "base/files/file_util.h" |
| 18 #include "base/files/scoped_file.h" | 18 #include "base/files/scoped_file.h" |
| 19 #include "base/logging.h" | 19 #include "base/logging.h" |
| 20 #include "base/macros.h" | 20 #include "base/macros.h" |
| 21 #include "base/posix/eintr_wrapper.h" | 21 #include "base/posix/eintr_wrapper.h" |
| 22 #include "base/sys_info.h" | 22 #include "base/sys_info.h" |
| 23 #include "base/threading/thread_restrictions.h" | 23 #include "base/threading/thread_restrictions.h" |
| 24 #include "mojo/edk/embedder/platform_handle.h" | 24 #include "mojo/embedder/platform_handle.h" |
| 25 | 25 |
| 26 // We assume that |size_t| and |off_t| (type for |ftruncate()|) fits in a | 26 // We assume that |size_t| and |off_t| (type for |ftruncate()|) fits in a |
| 27 // |uint64_t|. | 27 // |uint64_t|. |
| 28 static_assert(sizeof(size_t) <= sizeof(uint64_t), "size_t too big"); | 28 static_assert(sizeof(size_t) <= sizeof(uint64_t), "size_t too big"); |
| 29 static_assert(sizeof(off_t) <= sizeof(uint64_t), "off_t too big"); | 29 static_assert(sizeof(off_t) <= sizeof(uint64_t), "off_t too big"); |
| 30 | 30 |
| 31 namespace mojo { | 31 namespace mojo { |
| 32 namespace embedder { | 32 namespace embedder { |
| 33 | 33 |
| 34 // SimplePlatformSharedBuffer -------------------------------------------------- | 34 // SimplePlatformSharedBuffer -------------------------------------------------- |
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| 147 | 147 |
| 148 // SimplePlatformSharedBufferMapping ------------------------------------------- | 148 // SimplePlatformSharedBufferMapping ------------------------------------------- |
| 149 | 149 |
| 150 void SimplePlatformSharedBufferMapping::Unmap() { | 150 void SimplePlatformSharedBufferMapping::Unmap() { |
| 151 int result = munmap(real_base_, real_length_); | 151 int result = munmap(real_base_, real_length_); |
| 152 PLOG_IF(ERROR, result != 0) << "munmap"; | 152 PLOG_IF(ERROR, result != 0) << "munmap"; |
| 153 } | 153 } |
| 154 | 154 |
| 155 } // namespace embedder | 155 } // namespace embedder |
| 156 } // namespace mojo | 156 } // namespace mojo |
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