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Side by Side Diff: src/base/platform/platform-cygwin.cc

Issue 2299753002: Made zone segments aligned in memory and included a pointer to the zone in the header. Larger objec…
Patch Set: Added a zone segment pool for small segments to avoid frequent sys calls Created 4 years, 3 months ago
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1 // Copyright 2012 the V8 project authors. All rights reserved. 1 // Copyright 2012 the V8 project 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 // Platform-specific code for Cygwin goes here. For the POSIX-compatible 5 // Platform-specific code for Cygwin goes here. For the POSIX-compatible
6 // parts, the implementation is in platform-posix.cc. 6 // parts, the implementation is in platform-posix.cc.
7 7
8 #include <errno.h> 8 #include <errno.h>
9 #include <pthread.h> 9 #include <pthread.h>
10 #include <semaphore.h> 10 #include <semaphore.h>
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184 184
185 185
186 VirtualMemory::~VirtualMemory() { 186 VirtualMemory::~VirtualMemory() {
187 if (IsReserved()) { 187 if (IsReserved()) {
188 bool result = ReleaseRegion(address_, size_); 188 bool result = ReleaseRegion(address_, size_);
189 DCHECK(result); 189 DCHECK(result);
190 USE(result); 190 USE(result);
191 } 191 }
192 } 192 }
193 193
194 194 bool VirtualMemory::IsReserved() const { return address_ != NULL; }
195 bool VirtualMemory::IsReserved() {
196 return address_ != NULL;
197 }
198
199 195
200 void VirtualMemory::Reset() { 196 void VirtualMemory::Reset() {
201 address_ = NULL; 197 address_ = NULL;
202 size_ = 0; 198 size_ = 0;
203 } 199 }
204 200
205 201
206 bool VirtualMemory::Commit(void* address, size_t size, bool is_executable) { 202 bool VirtualMemory::Commit(void* address, size_t size, bool is_executable) {
207 return CommitRegion(address, size, is_executable); 203 return CommitRegion(address, size, is_executable);
208 } 204 }
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249 } 245 }
250 246
251 247
252 bool VirtualMemory::HasLazyCommits() { 248 bool VirtualMemory::HasLazyCommits() {
253 // TODO(alph): implement for the platform. 249 // TODO(alph): implement for the platform.
254 return false; 250 return false;
255 } 251 }
256 252
257 } // namespace base 253 } // namespace base
258 } // namespace v8 254 } // namespace v8
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