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1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file |
2 // for details. All rights reserved. Use of this source code is governed by a | 2 // for details. All rights reserved. Use of this source code is governed by a |
3 // BSD-style license that can be found in the LICENSE file. | 3 // BSD-style license that can be found in the LICENSE file. |
4 | 4 |
5 #include "platform/globals.h" // NOLINT | 5 #include "platform/globals.h" // NOLINT |
6 #if defined(TARGET_OS_WINDOWS) | 6 #if defined(TARGET_OS_WINDOWS) |
7 | 7 |
8 #include "vm/growable_array.h" | 8 #include "vm/growable_array.h" |
9 #include "vm/lockers.h" | 9 #include "vm/lockers.h" |
10 #include "vm/os_thread.h" | 10 #include "vm/os_thread.h" |
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166 ThreadId OSThread::ThreadIdFromIntPtr(intptr_t id) { | 166 ThreadId OSThread::ThreadIdFromIntPtr(intptr_t id) { |
167 return static_cast<ThreadId>(id); | 167 return static_cast<ThreadId>(id); |
168 } | 168 } |
169 | 169 |
170 | 170 |
171 bool OSThread::Compare(ThreadId a, ThreadId b) { | 171 bool OSThread::Compare(ThreadId a, ThreadId b) { |
172 return a == b; | 172 return a == b; |
173 } | 173 } |
174 | 174 |
175 | 175 |
176 void OSThread::GetThreadCpuUsage(ThreadId thread_id, int64_t* cpu_usage) { | |
177 static const int64_t kTimeEpoc = 116444736000000000LL; | |
178 static const int64_t kTimeScaler = 10; // 100 ns to us. | |
179 // Although win32 uses 64-bit integers for representing timestamps, | |
180 // these are packed into a FILETIME structure. The FILETIME | |
181 // structure is just a struct representing a 64-bit integer. The | |
182 // TimeStamp union allows access to both a FILETIME and an integer | |
183 // representation of the timestamp. The Windows timestamp is in | |
184 // 100-nanosecond intervals since January 1, 1601. | |
185 union TimeStamp { | |
186 FILETIME ft_; | |
187 int64_t t_; | |
188 }; | |
189 ASSERT(cpu_usage != NULL); | |
190 TimeStamp created; | |
191 TimeStamp exited; | |
192 TimeStamp kernel; | |
193 TimeStamp user; | |
194 HANDLE handle = OpenThread(THREAD_QUERY_INFORMATION, false, thread_id); | |
195 BOOL result = GetThreadTimes(handle, | |
196 &created.ft_, | |
197 &exited.ft_, | |
198 &kernel.ft_, | |
199 &user.ft_); | |
200 CloseHandle(handle); | |
201 if (!result) { | |
202 FATAL1("GetThreadCpuUsage failed %d\n", GetLastError()); | |
203 } | |
204 *cpu_usage = (user.t_ - kTimeEpoc) / kTimeScaler; | |
205 } | |
206 | |
207 | |
208 void OSThread::SetThreadLocal(ThreadLocalKey key, uword value) { | 176 void OSThread::SetThreadLocal(ThreadLocalKey key, uword value) { |
209 ASSERT(key != kUnsetThreadLocalKey); | 177 ASSERT(key != kUnsetThreadLocalKey); |
210 BOOL result = TlsSetValue(key, reinterpret_cast<void*>(value)); | 178 BOOL result = TlsSetValue(key, reinterpret_cast<void*>(value)); |
211 if (!result) { | 179 if (!result) { |
212 FATAL1("TlsSetValue failed %d", GetLastError()); | 180 FATAL1("TlsSetValue failed %d", GetLastError()); |
213 } | 181 } |
214 } | 182 } |
215 | 183 |
216 | 184 |
217 Mutex::Mutex() { | 185 Mutex::Mutex() { |
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711 #pragma data_seg(".CRT$XLB") | 679 #pragma data_seg(".CRT$XLB") |
712 PIMAGE_TLS_CALLBACK p_thread_callback_dart = OnDartThreadExit; | 680 PIMAGE_TLS_CALLBACK p_thread_callback_dart = OnDartThreadExit; |
713 | 681 |
714 // Reset the default section. | 682 // Reset the default section. |
715 #pragma data_seg() | 683 #pragma data_seg() |
716 | 684 |
717 #endif // _WIN64 | 685 #endif // _WIN64 |
718 } // extern "C" | 686 } // extern "C" |
719 | 687 |
720 #endif // defined(TARGET_OS_WINDOWS) | 688 #endif // defined(TARGET_OS_WINDOWS) |
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