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41 
42 #ifndef QATOMIC_SPARC_H
43 #define QATOMIC_SPARC_H
44 
45 QT_BEGIN_HEADER
46 
47 QT_BEGIN_NAMESPACE
48 
49 #if defined(_LP64)
50 
51 #define Q_ATOMIC_INT_REFERENCE_COUNTING_IS_ALWAYS_NATIVE
52 
isReferenceCountingNative()53 inline bool QBasicAtomicInt::isReferenceCountingNative()
54 { return true; }
isReferenceCountingWaitFree()55 inline bool QBasicAtomicInt::isReferenceCountingWaitFree()
56 { return false; }
57 
58 #define Q_ATOMIC_INT_TEST_AND_SET_IS_ALWAYS_NATIVE
59 #define Q_ATOMIC_INT_TEST_AND_SET_IS_WAIT_FREE
60 
isTestAndSetNative()61 inline bool QBasicAtomicInt::isTestAndSetNative()
62 { return true; }
isTestAndSetWaitFree()63 inline bool QBasicAtomicInt::isTestAndSetWaitFree()
64 { return true; }
65 
66 #define Q_ATOMIC_INT_FETCH_AND_STORE_IS_ALWAYS_NATIVE
67 #define Q_ATOMIC_INT_FETCH_AND_STORE_IS_WAIT_FREE
68 
isFetchAndStoreNative()69 inline bool QBasicAtomicInt::isFetchAndStoreNative()
70 { return true; }
isFetchAndStoreWaitFree()71 inline bool QBasicAtomicInt::isFetchAndStoreWaitFree()
72 { return true; }
73 
74 #define Q_ATOMIC_INT_FETCH_AND_ADD_IS_ALWAYS_NATIVE
75 
isFetchAndAddNative()76 inline bool QBasicAtomicInt::isFetchAndAddNative()
77 { return true; }
isFetchAndAddWaitFree()78 inline bool QBasicAtomicInt::isFetchAndAddWaitFree()
79 { return false; }
80 
81 #define Q_ATOMIC_POINTER_TEST_AND_SET_IS_ALWAYS_NATIVE
82 #define Q_ATOMIC_POINTER_TEST_AND_SET_IS_WAIT_FREE
83 
84 template <typename T>
isTestAndSetNative()85 Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::isTestAndSetNative()
86 { return true; }
87 template <typename T>
isTestAndSetWaitFree()88 Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::isTestAndSetWaitFree()
89 { return true; }
90 
91 #define Q_ATOMIC_POINTER_FETCH_AND_STORE_IS_ALWAYS_NATIVE
92 #define Q_ATOMIC_POINTER_FETCH_AND_STORE_IS_WAIT_FREE
93 
94 template <typename T>
isFetchAndStoreNative()95 Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::isFetchAndStoreNative()
96 { return true; }
97 template <typename T>
isFetchAndStoreWaitFree()98 Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::isFetchAndStoreWaitFree()
99 { return true; }
100 
101 #define Q_ATOMIC_POINTER_FETCH_AND_ADD_IS_ALWAYS_NATIVE
102 
103 template <typename T>
isFetchAndAddNative()104 Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::isFetchAndAddNative()
105 { return true; }
106 template <typename T>
isFetchAndAddWaitFree()107 Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::isFetchAndAddWaitFree()
108 { return false; }
109 
110 extern "C" {
111     Q_CORE_EXPORT int q_atomic_increment(volatile int *ptr);
112     Q_CORE_EXPORT int q_atomic_decrement(volatile int *ptr);
113 
114     Q_CORE_EXPORT int q_atomic_test_and_set_int(volatile int *ptr, int expected, int newval);
115     Q_CORE_EXPORT int q_atomic_test_and_set_acquire_int(volatile int *ptr,
116                                                         int expected,
117                                                         int newval);
118     Q_CORE_EXPORT int q_atomic_test_and_set_release_int(volatile int *ptr,
119                                                         int expected,
120                                                         int newval);
121 
122     Q_CORE_EXPORT int q_atomic_set_int(volatile int *ptr, int newval);
123     Q_CORE_EXPORT int q_atomic_fetch_and_store_acquire_int(volatile int *ptr, int newval);
124     Q_CORE_EXPORT int q_atomic_fetch_and_store_release_int(volatile int *ptr, int newval);
125 
126     Q_CORE_EXPORT int q_atomic_fetch_and_add_int(volatile int *ptr, int value);
127     Q_CORE_EXPORT int q_atomic_fetch_and_add_acquire_int(volatile int *ptr, int value);
128     Q_CORE_EXPORT int q_atomic_fetch_and_add_release_int(volatile int *ptr, int value);
129 
130     Q_CORE_EXPORT int q_atomic_test_and_set_ptr(volatile void *ptr, const void *expected, const void *newval);
131     Q_CORE_EXPORT int q_atomic_test_and_set_acquire_ptr(volatile void *ptr,
132                                                         const void *expected,
133                                                         const void *newval);
134     Q_CORE_EXPORT int q_atomic_test_and_set_release_ptr(volatile void *ptr,
135                                                         const void *expected,
136                                                         const void *newval);
137 
138     Q_CORE_EXPORT void *q_atomic_set_ptr(volatile void *ptr, const void *newval);
139     Q_CORE_EXPORT void *q_atomic_fetch_and_store_acquire_ptr(volatile void *ptr, const void *newval);
140     Q_CORE_EXPORT void *q_atomic_fetch_and_store_release_ptr(volatile void *ptr, const void *newval);
141 
142     Q_CORE_EXPORT void *q_atomic_fetch_and_add_ptr(volatile void *ptr, int value);
143     Q_CORE_EXPORT void *q_atomic_fetch_and_add_acquire_ptr(volatile void *ptr, int value);
144     Q_CORE_EXPORT void *q_atomic_fetch_and_add_release_ptr(volatile void *ptr, int value);
145 }
146 
ref()147 inline bool QBasicAtomicInt::ref()
148 {
149     return fetchAndAddRelaxed(1) != -1;
150 }
151 
deref()152 inline bool QBasicAtomicInt::deref()
153 {
154     return fetchAndAddRelaxed(-1) != 1;
155 }
156 
testAndSetRelaxed(int expectedValue,int newValue)157 inline bool QBasicAtomicInt::testAndSetRelaxed(int expectedValue, int newValue)
158 {
159     return q_atomic_test_and_set_int(&_q_value, expectedValue, newValue) != 0;
160 }
161 
testAndSetAcquire(int expectedValue,int newValue)162 inline bool QBasicAtomicInt::testAndSetAcquire(int expectedValue, int newValue)
163 {
164     return q_atomic_test_and_set_acquire_int(&_q_value, expectedValue, newValue) != 0;
165 }
166 
testAndSetRelease(int expectedValue,int newValue)167 inline bool QBasicAtomicInt::testAndSetRelease(int expectedValue, int newValue)
168 {
169     return q_atomic_test_and_set_release_int(&_q_value, expectedValue, newValue) != 0;
170 }
171 
testAndSetOrdered(int expectedValue,int newValue)172 inline bool QBasicAtomicInt::testAndSetOrdered(int expectedValue, int newValue)
173 {
174     return q_atomic_test_and_set_acquire_int(&_q_value, expectedValue, newValue) != 0;
175 }
176 
fetchAndStoreRelaxed(int newValue)177 inline int QBasicAtomicInt::fetchAndStoreRelaxed(int newValue)
178 {
179     return q_atomic_set_int(&_q_value, newValue);
180 }
181 
fetchAndStoreAcquire(int newValue)182 inline int QBasicAtomicInt::fetchAndStoreAcquire(int newValue)
183 {
184     return q_atomic_fetch_and_store_acquire_int(&_q_value, newValue);
185 }
186 
fetchAndStoreRelease(int newValue)187 inline int QBasicAtomicInt::fetchAndStoreRelease(int newValue)
188 {
189     return q_atomic_fetch_and_store_release_int(&_q_value, newValue);
190 }
191 
fetchAndStoreOrdered(int newValue)192 inline int QBasicAtomicInt::fetchAndStoreOrdered(int newValue)
193 {
194     return q_atomic_fetch_and_store_acquire_int(&_q_value, newValue);
195 }
196 
fetchAndAddRelaxed(int newValue)197 inline int QBasicAtomicInt::fetchAndAddRelaxed(int newValue)
198 {
199     return q_atomic_fetch_and_add_int(&_q_value, newValue);
200 }
201 
fetchAndAddAcquire(int newValue)202 inline int QBasicAtomicInt::fetchAndAddAcquire(int newValue)
203 {
204     return q_atomic_fetch_and_add_acquire_int(&_q_value, newValue);
205 }
206 
fetchAndAddRelease(int newValue)207 inline int QBasicAtomicInt::fetchAndAddRelease(int newValue)
208 {
209     return q_atomic_fetch_and_add_release_int(&_q_value, newValue);
210 }
211 
fetchAndAddOrdered(int newValue)212 inline int QBasicAtomicInt::fetchAndAddOrdered(int newValue)
213 {
214     return q_atomic_fetch_and_add_acquire_int(&_q_value, newValue);
215 }
216 
217 template <typename T>
testAndSetRelaxed(T * expectedValue,T * newValue)218 Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::testAndSetRelaxed(T *expectedValue, T *newValue)
219 {
220     return q_atomic_test_and_set_ptr(&_q_value, expectedValue, newValue) != 0;
221 }
222 
223 template <typename T>
testAndSetAcquire(T * expectedValue,T * newValue)224 Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::testAndSetAcquire(T *expectedValue, T *newValue)
225 {
226     return q_atomic_test_and_set_acquire_ptr(&_q_value, expectedValue, newValue) != 0;
227 }
228 
229 template <typename T>
testAndSetRelease(T * expectedValue,T * newValue)230 Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::testAndSetRelease(T *expectedValue, T *newValue)
231 {
232     return q_atomic_test_and_set_release_ptr(&_q_value, expectedValue, newValue) != 0;
233 }
234 
235 template <typename T>
testAndSetOrdered(T * expectedValue,T * newValue)236 Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::testAndSetOrdered(T *expectedValue, T *newValue)
237 {
238     return q_atomic_test_and_set_acquire_ptr(&_q_value, expectedValue, newValue) != 0;
239 }
240 
241 template <typename T>
fetchAndStoreRelaxed(T * newValue)242 Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndStoreRelaxed(T *newValue)
243 {
244     return reinterpret_cast<T *>(q_atomic_set_ptr(&_q_value, newValue));
245 }
246 
247 template <typename T>
fetchAndStoreAcquire(T * newValue)248 Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndStoreAcquire(T *newValue)
249 {
250     return reinterpret_cast<T *>(q_atomic_fetch_and_store_acquire_ptr(&_q_value, newValue));
251 }
252 
253 template <typename T>
fetchAndStoreRelease(T * newValue)254 Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndStoreRelease(T *newValue)
255 {
256     return reinterpret_cast<T *>(q_atomic_fetch_and_store_release_ptr(&_q_value, newValue));
257 }
258 
259 template <typename T>
fetchAndStoreOrdered(T * newValue)260 Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndStoreOrdered(T *newValue)
261 {
262     return reinterpret_cast<T *>(q_atomic_fetch_and_store_acquire_ptr(&_q_value, newValue));
263 }
264 
265 template <typename T>
fetchAndAddRelaxed(qptrdiff valueToAdd)266 Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndAddRelaxed(qptrdiff valueToAdd)
267 {
268     return reinterpret_cast<T *>(q_atomic_fetch_and_add_ptr(&_q_value, valueToAdd * sizeof(T)));
269 }
270 
271 template <typename T>
272 Q_INLINE_TEMPLATE
fetchAndAddAcquire(qptrdiff valueToAdd)273 T *QBasicAtomicPointer<T>::fetchAndAddAcquire(qptrdiff valueToAdd)
274 {
275     return reinterpret_cast<T *>(q_atomic_fetch_and_add_acquire_ptr(&_q_value, valueToAdd * sizeof(T)));
276 }
277 
278 template <typename T>
fetchAndAddRelease(qptrdiff valueToAdd)279 Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndAddRelease(qptrdiff valueToAdd)
280 {
281     return reinterpret_cast<T *>(q_atomic_fetch_and_add_release_ptr(&_q_value, valueToAdd * sizeof(T)));
282 }
283 
284 template <typename T>
fetchAndAddOrdered(qptrdiff valueToAdd)285 Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndAddOrdered(qptrdiff valueToAdd)
286 {
287     return reinterpret_cast<T *>(q_atomic_fetch_and_add_acquire_ptr(&_q_value, valueToAdd * sizeof(T)));
288 }
289 
290 #else
291 
292 #define Q_ATOMIC_INT_REFERENCE_COUNTING_IS_NOT_NATIVE
293 
294 inline bool QBasicAtomicInt::isReferenceCountingNative()
295 { return false; }
296 inline bool QBasicAtomicInt::isReferenceCountingWaitFree()
297 { return false; }
298 
299 #define Q_ATOMIC_INT_TEST_AND_SET_IS_NOT_NATIVE
300 
301 inline bool QBasicAtomicInt::isTestAndSetNative()
302 { return false; }
303 inline bool QBasicAtomicInt::isTestAndSetWaitFree()
304 { return false; }
305 
306 #define Q_ATOMIC_INT_FETCH_AND_STORE_IS_ALWAYS_NATIVE
307 #define Q_ATOMIC_INT_FETCH_AND_STORE_IS_WAIT_FREE
308 
309 inline bool QBasicAtomicInt::isFetchAndStoreNative()
310 { return true; }
311 inline bool QBasicAtomicInt::isFetchAndStoreWaitFree()
312 { return true; }
313 
314 #define Q_ATOMIC_INT_FETCH_AND_ADD_IS_NOT_NATIVE
315 
316 inline bool QBasicAtomicInt::isFetchAndAddNative()
317 { return false; }
318 inline bool QBasicAtomicInt::isFetchAndAddWaitFree()
319 { return false; }
320 
321 #define Q_ATOMIC_POINTER_TEST_AND_SET_IS_NOT_NATIVE
322 
323 template <typename T>
324 Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::isTestAndSetNative()
325 { return false; }
326 template <typename T>
327 Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::isTestAndSetWaitFree()
328 { return false; }
329 
330 #define Q_ATOMIC_POINTER_FETCH_AND_STORE_IS_ALWAYS_NATIVE
331 #define Q_ATOMIC_POINTER_FETCH_AND_STORE_IS_WAIT_FREE
332 
333 template <typename T>
334 Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::isFetchAndStoreNative()
335 { return true; }
336 template <typename T>
337 Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::isFetchAndStoreWaitFree()
338 { return true; }
339 
340 #define Q_ATOMIC_POINTER_FETCH_AND_ADD_IS_NOT_NATIVE
341 
342 template <typename T>
343 Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::isFetchAndAddNative()
344 { return false; }
345 template <typename T>
346 Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::isFetchAndAddWaitFree()
347 { return false; }
348 
349 extern "C" {
350     Q_CORE_EXPORT int q_atomic_lock_int(volatile int *addr);
351     Q_CORE_EXPORT int q_atomic_lock_ptr(volatile void *addr);
352     Q_CORE_EXPORT void q_atomic_unlock(volatile void *addr, int value);
353     Q_CORE_EXPORT int q_atomic_set_int(volatile int *ptr, int newval);
354     Q_CORE_EXPORT void *q_atomic_set_ptr(volatile void *ptr, void *newval);
355 } // extern "C"
356 
357 inline bool QBasicAtomicInt::ref()
358 {
359     const int val = q_atomic_lock_int(&_q_value);
360     q_atomic_unlock(&_q_value, val + 1);
361     return val != -1;
362 }
363 
364 inline bool QBasicAtomicInt::deref()
365 {
366     const int val = q_atomic_lock_int(&_q_value);
367     q_atomic_unlock(&_q_value, val - 1);
368     return val != 1;
369 }
370 
371 inline bool QBasicAtomicInt::testAndSetOrdered(int expectedValue, int newValue)
372 {
373     int val = q_atomic_lock_int(&_q_value);
374     if (val == expectedValue) {
375         q_atomic_unlock(&_q_value, newValue);
376         return true;
377     }
378     q_atomic_unlock(&_q_value, val);
379     return false;
380 }
381 
382 inline bool QBasicAtomicInt::testAndSetRelaxed(int expectedValue, int newValue)
383 {
384     return testAndSetOrdered(expectedValue, newValue);
385 }
386 
387 inline bool QBasicAtomicInt::testAndSetAcquire(int expectedValue, int newValue)
388 {
389     return testAndSetOrdered(expectedValue, newValue);
390 }
391 
392 inline bool QBasicAtomicInt::testAndSetRelease(int expectedValue, int newValue)
393 {
394     return testAndSetOrdered(expectedValue, newValue);
395 }
396 
397 inline int QBasicAtomicInt::fetchAndStoreOrdered(int newValue)
398 {
399     return q_atomic_set_int(&_q_value, newValue);
400 }
401 
402 inline int QBasicAtomicInt::fetchAndStoreRelaxed(int newValue)
403 {
404     return fetchAndStoreOrdered(newValue);
405 }
406 
407 inline int QBasicAtomicInt::fetchAndStoreAcquire(int newValue)
408 {
409     return fetchAndStoreOrdered(newValue);
410 }
411 
412 inline int QBasicAtomicInt::fetchAndStoreRelease(int newValue)
413 {
414     return fetchAndStoreOrdered(newValue);
415 }
416 
417 inline int QBasicAtomicInt::fetchAndAddOrdered(int valueToAdd)
418 {
419     const int originalValue = q_atomic_lock_int(&_q_value);
420     q_atomic_unlock(&_q_value, originalValue + valueToAdd);
421     return originalValue;
422 }
423 
424 inline int QBasicAtomicInt::fetchAndAddRelaxed(int valueToAdd)
425 {
426     return fetchAndAddOrdered(valueToAdd);
427 }
428 
429 inline int QBasicAtomicInt::fetchAndAddAcquire(int valueToAdd)
430 {
431     return fetchAndAddOrdered(valueToAdd);
432 }
433 
434 inline int QBasicAtomicInt::fetchAndAddRelease(int valueToAdd)
435 {
436     return fetchAndAddOrdered(valueToAdd);
437 }
438 
439 template <typename T>
440 Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::testAndSetOrdered(T *expectedValue, T *newValue)
441 {
442     T *val = reinterpret_cast<T *>(q_atomic_lock_ptr(&_q_value));
443     if (val == expectedValue) {
444         q_atomic_unlock(&_q_value, reinterpret_cast<int>(newValue));
445         return true;
446     }
447     q_atomic_unlock(&_q_value, reinterpret_cast<int>(val));
448     return false;
449 }
450 
451 template <typename T>
452 Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::testAndSetRelaxed(T *expectedValue, T *newValue)
453 {
454     return testAndSetOrdered(expectedValue, newValue);
455 }
456 
457 template <typename T>
458 Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::testAndSetAcquire(T *expectedValue, T *newValue)
459 {
460     return testAndSetOrdered(expectedValue, newValue);
461 }
462 
463 template <typename T>
464 Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::testAndSetRelease(T *expectedValue, T *newValue)
465 {
466     return testAndSetOrdered(expectedValue, newValue);
467 }
468 
469 template <typename T>
470 Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndStoreOrdered(T *newValue)
471 {
472     return reinterpret_cast<T *>(q_atomic_set_ptr(&_q_value, newValue));
473 }
474 
475 template <typename T>
476 Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndStoreRelaxed(T *newValue)
477 {
478     return fetchAndStoreOrdered(newValue);
479 }
480 
481 template <typename T>
482 Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndStoreAcquire(T *newValue)
483 {
484     return fetchAndStoreOrdered(newValue);
485 }
486 
487 template <typename T>
488 Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndStoreRelease(T *newValue)
489 {
490     return fetchAndStoreOrdered(newValue);
491 }
492 
493 template <typename T>
494 Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndAddOrdered(qptrdiff valueToAdd)
495 {
496     T *originalValue = reinterpret_cast<T *>(q_atomic_lock_ptr(&_q_value));
497     q_atomic_unlock(&_q_value, int(originalValue + valueToAdd));
498     return originalValue;
499 }
500 
501 template <typename T>
502 Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndAddRelaxed(qptrdiff valueToAdd)
503 {
504     return fetchAndAddOrdered(valueToAdd);
505 }
506 
507 template <typename T>
508 Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndAddAcquire(qptrdiff valueToAdd)
509 {
510     return fetchAndAddOrdered(valueToAdd);
511 }
512 
513 template <typename T>
514 Q_INLINE_TEMPLATE T *QBasicAtomicPointer<T>::fetchAndAddRelease(qptrdiff valueToAdd)
515 {
516     return fetchAndAddOrdered(valueToAdd);
517 }
518 
519 #endif // _LP64
520 
521 QT_END_NAMESPACE
522 
523 QT_END_HEADER
524 
525 #endif // QATOMIC_SPARC_H
526