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Issue 1549003002: Switch to standard integer types in base/memory/. (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: Created 4 years, 12 months ago
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1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. 1 // Copyright (c) 2011 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 "base/memory/shared_memory.h" 5 #include "base/memory/shared_memory.h"
6 6
7 #include <aclapi.h> 7 #include <aclapi.h>
8 #include <stddef.h>
9 #include <stdint.h>
8 10
9 #include "base/logging.h" 11 #include "base/logging.h"
10 #include "base/memory/scoped_ptr.h" 12 #include "base/memory/scoped_ptr.h"
11 #include "base/rand_util.h" 13 #include "base/rand_util.h"
12 #include "base/strings/stringprintf.h" 14 #include "base/strings/stringprintf.h"
13 #include "base/strings/utf_string_conversions.h" 15 #include "base/strings/utf_string_conversions.h"
14 16
15 namespace { 17 namespace {
16 18
17 typedef enum _SECTION_INFORMATION_CLASS { 19 typedef enum _SECTION_INFORMATION_CLASS {
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249 251
250 if (bytes > static_cast<size_t>(std::numeric_limits<int>::max())) 252 if (bytes > static_cast<size_t>(std::numeric_limits<int>::max()))
251 return false; 253 return false;
252 254
253 if (memory_) 255 if (memory_)
254 return false; 256 return false;
255 257
256 if (external_section_ && !IsSectionSafeToMap(mapped_file_)) 258 if (external_section_ && !IsSectionSafeToMap(mapped_file_))
257 return false; 259 return false;
258 260
259 memory_ = MapViewOfFile(mapped_file_, 261 memory_ = MapViewOfFile(
260 read_only_ ? FILE_MAP_READ : FILE_MAP_READ | 262 mapped_file_, read_only_ ? FILE_MAP_READ : FILE_MAP_READ | FILE_MAP_WRITE,
261 FILE_MAP_WRITE, 263 static_cast<uint64_t>(offset) >> 32, static_cast<DWORD>(offset), bytes);
262 static_cast<uint64>(offset) >> 32,
263 static_cast<DWORD>(offset),
264 bytes);
265 if (memory_ != NULL) { 264 if (memory_ != NULL) {
266 DCHECK_EQ(0U, reinterpret_cast<uintptr_t>(memory_) & 265 DCHECK_EQ(0U, reinterpret_cast<uintptr_t>(memory_) &
267 (SharedMemory::MAP_MINIMUM_ALIGNMENT - 1)); 266 (SharedMemory::MAP_MINIMUM_ALIGNMENT - 1));
268 mapped_size_ = GetMemorySectionSize(memory_); 267 mapped_size_ = GetMemorySectionSize(memory_);
269 return true; 268 return true;
270 } 269 }
271 return false; 270 return false;
272 } 271 }
273 272
274 bool SharedMemory::Unmap() { 273 bool SharedMemory::Unmap() {
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317 ::CloseHandle(mapped_file_); 316 ::CloseHandle(mapped_file_);
318 mapped_file_ = NULL; 317 mapped_file_ = NULL;
319 } 318 }
320 } 319 }
321 320
322 SharedMemoryHandle SharedMemory::handle() const { 321 SharedMemoryHandle SharedMemory::handle() const {
323 return SharedMemoryHandle(mapped_file_, base::GetCurrentProcId()); 322 return SharedMemoryHandle(mapped_file_, base::GetCurrentProcId());
324 } 323 }
325 324
326 } // namespace base 325 } // namespace base
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