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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 "vm/globals.h" | 5 #include "vm/globals.h" |
6 #if defined(TARGET_OS_ANDROID) | 6 #if defined(TARGET_OS_ANDROID) |
7 | 7 |
8 #include "vm/os.h" | 8 #include "vm/os.h" |
9 | 9 |
10 #include <android/log.h> // NOLINT | 10 #include <android/log.h> // NOLINT |
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312 return retval; | 312 return retval; |
313 } | 313 } |
314 | 314 |
315 | 315 |
316 int OS::NumberOfAvailableProcessors() { | 316 int OS::NumberOfAvailableProcessors() { |
317 return sysconf(_SC_NPROCESSORS_ONLN); | 317 return sysconf(_SC_NPROCESSORS_ONLN); |
318 } | 318 } |
319 | 319 |
320 | 320 |
321 void OS::Sleep(int64_t millis) { | 321 void OS::Sleep(int64_t millis) { |
322 // TODO(5411554): For now just use usleep we may have to revisit this. | 322 int64_t micros = millis * kMicrosecondsPerMillisecond; |
323 usleep(millis * 1000); | 323 SleepMicros(micros); |
324 } | 324 } |
325 | 325 |
326 | 326 |
| 327 void OS::SleepMicros(int64_t micros) { |
| 328 struct timespec req; // requested. |
| 329 struct timespec rem; // remainder. |
| 330 int64_t seconds = micros / kMicrosecondsPerSecond; |
| 331 micros = micros - seconds * kMicrosecondsPerSecond; |
| 332 int64_t nanos = micros * kNanosecondsPerMicrosecond; |
| 333 req.tv_sec = seconds; |
| 334 req.tv_nsec = nanos; |
| 335 while (true) { |
| 336 int r = nanosleep(&req, &rem); |
| 337 if (r == 0) { |
| 338 break; |
| 339 } |
| 340 // We should only ever see an interrupt error. |
| 341 ASSERT(errno == EINTR); |
| 342 // Copy remainder into requested and repeat. |
| 343 req = rem; |
| 344 } |
| 345 } |
| 346 |
| 347 |
327 void OS::DebugBreak() { | 348 void OS::DebugBreak() { |
328 UNIMPLEMENTED(); | 349 UNIMPLEMENTED(); |
329 } | 350 } |
330 | 351 |
331 | 352 |
332 char* OS::StrNDup(const char* s, intptr_t n) { | 353 char* OS::StrNDup(const char* s, intptr_t n) { |
333 return strndup(s, n); | 354 return strndup(s, n); |
334 } | 355 } |
335 | 356 |
336 | 357 |
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462 } | 483 } |
463 | 484 |
464 | 485 |
465 void OS::Exit(int code) { | 486 void OS::Exit(int code) { |
466 exit(code); | 487 exit(code); |
467 } | 488 } |
468 | 489 |
469 } // namespace dart | 490 } // namespace dart |
470 | 491 |
471 #endif // defined(TARGET_OS_ANDROID) | 492 #endif // defined(TARGET_OS_ANDROID) |
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