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39
40#ifndef QTCONCURRENT_MAP_H
41#define QTCONCURRENT_MAP_H
42
43#include <QtConcurrent/qtconcurrent_global.h>
44
45#if !defined(QT_NO_CONCURRENT) || defined(Q_CLANG_QDOC)
46
47#include <QtConcurrent/qtconcurrentmapkernel.h>
48#include <QtConcurrent/qtconcurrentreducekernel.h>
49#include <QtConcurrent/qtconcurrentfunctionwrappers.h>
50#include <QtCore/qstringlist.h>
51
52QT_BEGIN_NAMESPACE
53
54
55
56namespace QtConcurrent {
57
58// map() on sequences
59template <typename Sequence, typename MapFunctor>
60QFuture<void> map(QThreadPool *pool, Sequence &&sequence, MapFunctor map)
61{
62 return startMap(pool, sequence.begin(), sequence.end(), map);
63}
64
65template <typename Sequence, typename MapFunctor>
66QFuture<void> map(Sequence &&sequence, MapFunctor map)
67{
68 return startMap(QThreadPool::globalInstance(), sequence.begin(), sequence.end(), map);
69}
70
71// map() on iterators
72template <typename Iterator, typename MapFunctor>
73QFuture<void> map(QThreadPool *pool, Iterator begin, Iterator end, MapFunctor map)
74{
75 return startMap(pool, begin, end, map);
76}
77
78template <typename Iterator, typename MapFunctor>
79QFuture<void> map(Iterator begin, Iterator end, MapFunctor map)
80{
81 return startMap(QThreadPool::globalInstance(), begin, end, map);
82}
83
84// mappedReduced() for sequences.
85template <typename ResultType, typename Sequence, typename MapFunctor, typename ReduceFunctor>
86QFuture<ResultType> mappedReduced(QThreadPool *pool,
87 Sequence &&sequence,
88 MapFunctor map,
89 ReduceFunctor reduce,
90 ReduceOptions options = ReduceOptions(UnorderedReduce
91 | SequentialReduce))
92{
93 return startMappedReduced<QtPrivate::MapResultType<Sequence, MapFunctor>, ResultType>
94 (pool, std::forward<Sequence>(sequence), map, reduce, options);
95}
96
97template <typename ResultType, typename Sequence, typename MapFunctor, typename ReduceFunctor>
98QFuture<ResultType> mappedReduced(Sequence &&sequence,
99 MapFunctor map,
100 ReduceFunctor reduce,
101 ReduceOptions options = ReduceOptions(UnorderedReduce
102 | SequentialReduce))
103{
104 return startMappedReduced<QtPrivate::MapResultType<Sequence, MapFunctor>, ResultType>
105 (QThreadPool::globalInstance(), std::forward<Sequence>(sequence), map, reduce, options);
106}
107
108#ifdef Q_CLANG_QDOC
109template <typename ResultType, typename Sequence, typename MapFunctor, typename ReduceFunctor,
110 typename InitialValueType>
111#else
112template <typename ResultType, typename Sequence, typename MapFunctor, typename ReduceFunctor,
113 typename InitialValueType,
114 std::enable_if_t<std::is_convertible_v<InitialValueType, ResultType>, int> = 0>
115#endif
116QFuture<ResultType> mappedReduced(QThreadPool *pool,
117 Sequence &&sequence,
118 MapFunctor map,
119 ReduceFunctor reduce,
120 InitialValueType &&initialValue,
121 ReduceOptions options = ReduceOptions(UnorderedReduce
122 | SequentialReduce))
123{
124 return startMappedReduced<QtPrivate::MapResultType<Sequence, MapFunctor>, ResultType>(
125 pool, std::forward<Sequence>(sequence), map, reduce,
126 ResultType(std::forward<InitialValueType>(initialValue)), options);
127}
128#ifdef Q_CLANG_QDOC
129template <typename ResultType, typename Sequence, typename MapFunctor, typename ReduceFunctor,
130 typename InitialValueType>
131#else
132template <typename ResultType, typename Sequence, typename MapFunctor, typename ReduceFunctor,
133 typename InitialValueType,
134 std::enable_if_t<std::is_convertible_v<InitialValueType, ResultType>, int> = 0>
135#endif
136QFuture<ResultType> mappedReduced(Sequence &&sequence,
137 MapFunctor map,
138 ReduceFunctor reduce,
139 InitialValueType &&initialValue,
140 ReduceOptions options = ReduceOptions(UnorderedReduce
141 | SequentialReduce))
142{
143 return startMappedReduced<QtPrivate::MapResultType<Sequence, MapFunctor>, ResultType>
144 (QThreadPool::globalInstance(), std::forward<Sequence>(sequence), map, reduce,
145 ResultType(std::forward<InitialValueType>(initialValue)), options);
146}
147
148template <typename Sequence, typename MapFunctor, typename ReduceFunctor,
149 typename ResultType = typename QtPrivate::ReduceResultType<ReduceFunctor>::ResultType>
150QFuture<ResultType> mappedReduced(QThreadPool *pool,
151 Sequence &&sequence,
152 MapFunctor map,
153 ReduceFunctor reduce,
154 ReduceOptions options = ReduceOptions(UnorderedReduce
155 | SequentialReduce))
156{
157 return startMappedReduced<QtPrivate::MapResultType<Sequence, MapFunctor>, ResultType>
158 (pool, std::forward<Sequence>(sequence), map, reduce, options);
159}
160
161template <typename Sequence, typename MapFunctor, typename ReduceFunctor,
162 typename ResultType = typename QtPrivate::ReduceResultType<ReduceFunctor>::ResultType>
163QFuture<ResultType> mappedReduced(
164 Sequence &&sequence,
165 MapFunctor map,
166 ReduceFunctor reduce,
167 ReduceOptions options = ReduceOptions(UnorderedReduce
168 | SequentialReduce))
169{
170 return startMappedReduced<QtPrivate::MapResultType<Sequence, MapFunctor>, ResultType>
171 (QThreadPool::globalInstance(), std::forward<Sequence>(sequence), map, reduce, options);
172}
173
174#ifdef Q_CLANG_QDOC
175template <typename Sequence, typename MapFunctor, typename ReduceFunctor, typename ResultType,
176 typename InitialValueType>
177#else
178template <typename Sequence, typename MapFunctor, typename ReduceFunctor,
179 typename ResultType = typename QtPrivate::ReduceResultType<ReduceFunctor>::ResultType,
180 typename InitialValueType,
181 std::enable_if_t<std::is_convertible_v<InitialValueType, ResultType>, int> = 0>
182#endif
183QFuture<ResultType> mappedReduced(QThreadPool *pool,
184 Sequence &&sequence,
185 MapFunctor map,
186 ReduceFunctor reduce,
187 InitialValueType &&initialValue,
188 ReduceOptions options = ReduceOptions(UnorderedReduce
189 | SequentialReduce))
190{
191 return startMappedReduced<QtPrivate::MapResultType<Sequence, MapFunctor>, ResultType>(
192 pool, std::forward<Sequence>(sequence), map, reduce,
193 ResultType(std::forward<InitialValueType>(initialValue)), options);
194}
195
196#ifdef Q_CLANG_QDOC
197template <typename Sequence, typename MapFunctor, typename ReduceFunctor, typename ResultType,
198 typename InitialValueType>
199#else
200template <typename Sequence, typename MapFunctor, typename ReduceFunctor,
201 typename ResultType = typename QtPrivate::ReduceResultType<ReduceFunctor>::ResultType,
202 typename InitialValueType,
203 std::enable_if_t<std::is_convertible_v<InitialValueType, ResultType>, int> = 0>
204#endif
205QFuture<ResultType> mappedReduced(Sequence &&sequence,
206 MapFunctor map,
207 ReduceFunctor reduce,
208 InitialValueType &&initialValue,
209 ReduceOptions options = ReduceOptions(UnorderedReduce
210 | SequentialReduce))
211{
212 return startMappedReduced<QtPrivate::MapResultType<Sequence, MapFunctor>, ResultType>
213 (QThreadPool::globalInstance(), std::forward<Sequence>(sequence), map, reduce,
214 ResultType(std::forward<InitialValueType>(initialValue)), options);
215}
216
217// mappedReduced() for iterators
218template <typename ResultType, typename Iterator, typename MapFunctor, typename ReduceFunctor>
219QFuture<ResultType> mappedReduced(QThreadPool *pool,
220 Iterator begin,
221 Iterator end,
222 MapFunctor map,
223 ReduceFunctor reduce,
224 ReduceOptions options = ReduceOptions(UnorderedReduce
225 | SequentialReduce))
226{
227 return startMappedReduced<QtPrivate::MapResultType<Iterator, MapFunctor>, ResultType>
228 (pool, begin, end, map, reduce, options);
229}
230
231template <typename ResultType, typename Iterator, typename MapFunctor, typename ReduceFunctor>
232QFuture<ResultType> mappedReduced(Iterator begin,
233 Iterator end,
234 MapFunctor map,
235 ReduceFunctor reduce,
236 ReduceOptions options = ReduceOptions(UnorderedReduce
237 | SequentialReduce))
238{
239 return startMappedReduced<QtPrivate::MapResultType<Iterator, MapFunctor>, ResultType>
240 (QThreadPool::globalInstance(), begin, end, map, reduce, options);
241}
242
243#ifdef Q_CLANG_QDOC
244template <typename ResultType, typename Iterator, typename MapFunctor, typename ReduceFunctor,
245 typename InitialValueType>
246#else
247template <typename ResultType, typename Iterator, typename MapFunctor, typename ReduceFunctor,
248 typename InitialValueType,
249 std::enable_if_t<std::is_convertible_v<InitialValueType, ResultType>, int> = 0>
250#endif
251QFuture<ResultType> mappedReduced(QThreadPool *pool,
252 Iterator begin,
253 Iterator end,
254 MapFunctor map,
255 ReduceFunctor reduce,
256 InitialValueType &&initialValue,
257 ReduceOptions options = ReduceOptions(UnorderedReduce
258 | SequentialReduce))
259{
260 return startMappedReduced<QtPrivate::MapResultType<Iterator, MapFunctor>, ResultType>
261 (pool, begin, end, map, reduce,
262 ResultType(std::forward<InitialValueType>(initialValue)), options);
263}
264
265#ifdef Q_CLANG_QDOC
266template <typename ResultType, typename Iterator, typename MapFunctor, typename ReduceFunctor,
267 typename InitialValueType>
268#else
269template <typename ResultType, typename Iterator, typename MapFunctor, typename ReduceFunctor,
270 typename InitialValueType,
271 std::enable_if_t<std::is_convertible_v<InitialValueType, ResultType>, int> = 0>
272#endif
273QFuture<ResultType> mappedReduced(Iterator begin,
274 Iterator end,
275 MapFunctor map,
276 ReduceFunctor reduce,
277 InitialValueType &&initialValue,
278 ReduceOptions options = ReduceOptions(UnorderedReduce
279 | SequentialReduce))
280{
281 return startMappedReduced<QtPrivate::MapResultType<Iterator, MapFunctor>, ResultType>
282 (QThreadPool::globalInstance(), begin, end, map, reduce,
283 ResultType(std::forward<InitialValueType>(initialValue)), options);
284}
285
286template <typename Iterator, typename MapFunctor, typename ReduceFunctor,
287 typename ResultType = typename QtPrivate::ReduceResultType<ReduceFunctor>::ResultType>
288QFuture<ResultType> mappedReduced(QThreadPool *pool,
289 Iterator begin,
290 Iterator end,
291 MapFunctor map,
292 ReduceFunctor reduce,
293 ReduceOptions options = ReduceOptions(UnorderedReduce
294 | SequentialReduce))
295{
296 return startMappedReduced<QtPrivate::MapResultType<Iterator, MapFunctor>, ResultType>
297 (pool, begin, end, map, reduce, options);
298}
299
300template <typename Iterator, typename MapFunctor, typename ReduceFunctor,
301 typename ResultType = typename QtPrivate::ReduceResultType<ReduceFunctor>::ResultType>
302QFuture<ResultType> mappedReduced(Iterator begin,
303 Iterator end,
304 MapFunctor map,
305 ReduceFunctor reduce,
306 ReduceOptions options = ReduceOptions(UnorderedReduce
307 | SequentialReduce))
308{
309 return startMappedReduced<QtPrivate::MapResultType<Iterator, MapFunctor>, ResultType>
310 (QThreadPool::globalInstance(), begin, end, map, reduce, options);
311}
312
313#ifdef Q_CLANG_QDOC
314template <typename Iterator, typename MapFunctor, typename ReduceFunctor, typename ResultType,
315 typename InitialValueType>
316#else
317template <typename Iterator, typename MapFunctor, typename ReduceFunctor,
318 typename ResultType = typename QtPrivate::ReduceResultType<ReduceFunctor>::ResultType,
319 typename InitialValueType,
320 std::enable_if_t<std::is_convertible_v<InitialValueType, ResultType>, int> = 0>
321#endif
322QFuture<ResultType> mappedReduced(QThreadPool *pool,
323 Iterator begin,
324 Iterator end,
325 MapFunctor map,
326 ReduceFunctor reduce,
327 InitialValueType &&initialValue,
328 ReduceOptions options = ReduceOptions(UnorderedReduce
329 | SequentialReduce))
330{
331 return startMappedReduced<QtPrivate::MapResultType<Iterator, MapFunctor>, ResultType>
332 (pool, begin, end, map, reduce, ResultType(std::forward<InitialValueType>(initialValue)),
333 options);
334}
335
336#ifdef Q_CLANG_QDOC
337template <typename Iterator, typename MapFunctor, typename ReduceFunctor, typename ResultType,
338 typename InitialValueType>
339#else
340template <typename Iterator, typename MapFunctor, typename ReduceFunctor,
341 typename ResultType = typename QtPrivate::ReduceResultType<ReduceFunctor>::ResultType,
342 typename InitialValueType,
343 std::enable_if_t<std::is_convertible_v<InitialValueType, ResultType>, int> = 0>
344#endif
345QFuture<ResultType> mappedReduced(Iterator begin,
346 Iterator end,
347 MapFunctor map,
348 ReduceFunctor reduce,
349 InitialValueType &&initialValue,
350 ReduceOptions options = ReduceOptions(UnorderedReduce
351 | SequentialReduce))
352{
353 return startMappedReduced<QtPrivate::MapResultType<Iterator, MapFunctor>, ResultType>
354 (QThreadPool::globalInstance(), begin, end, map, reduce,
355 ResultType(std::forward<InitialValueType>(initialValue)), options);
356}
357
358// mapped() for sequences
359template <typename Sequence, typename MapFunctor>
360QFuture<QtPrivate::MapResultType<Sequence, MapFunctor>> mapped(
361 QThreadPool *pool,
362 Sequence &&sequence,
363 MapFunctor map)
364{
365 return startMapped<QtPrivate::MapResultType<Sequence, MapFunctor>>(
366 pool, std::forward<Sequence>(sequence), map);
367}
368
369template <typename Sequence, typename MapFunctor>
370QFuture<QtPrivate::MapResultType<Sequence, MapFunctor>> mapped(
371 Sequence &&sequence,
372 MapFunctor map)
373{
374 return startMapped<QtPrivate::MapResultType<Sequence, MapFunctor>>
375 (QThreadPool::globalInstance(), std::forward<Sequence>(sequence), map);
376}
377
378// mapped() for iterator ranges.
379template <typename Iterator, typename MapFunctor>
380QFuture<QtPrivate::MapResultType<Iterator, MapFunctor>> mapped(
381 QThreadPool *pool,
382 Iterator begin,
383 Iterator end,
384 MapFunctor map)
385{
386 return startMapped<QtPrivate::MapResultType<Iterator, MapFunctor>>(pool, begin, end, map);
387}
388
389template <typename Iterator, typename MapFunctor>
390QFuture<QtPrivate::MapResultType<Iterator, MapFunctor>> mapped(
391 Iterator begin,
392 Iterator end,
393 MapFunctor map)
394{
395 return startMapped<QtPrivate::MapResultType<Iterator, MapFunctor>>
396 (QThreadPool::globalInstance(), begin, end, map);
397}
398
399// blockingMap() for sequences
400template <typename Sequence, typename MapFunctor>
401void blockingMap(QThreadPool *pool, Sequence &&sequence, MapFunctor map)
402{
403 QFuture<void> future = startMap(pool, sequence.begin(), sequence.end(), map);
404 future.waitForFinished();
405}
406
407template <typename Sequence, typename MapFunctor>
408void blockingMap(Sequence &&sequence, MapFunctor map)
409{
410 QFuture<void> future = startMap(QThreadPool::globalInstance(), sequence.begin(), sequence.end(), map);
411 future.waitForFinished();
412}
413
414// blockingMap() for iterator ranges
415template <typename Iterator, typename MapFunctor>
416void blockingMap(QThreadPool *pool, Iterator begin, Iterator end, MapFunctor map)
417{
418 QFuture<void> future = startMap(pool, begin, end, map);
419 future.waitForFinished();
420}
421
422template <typename Iterator, typename MapFunctor>
423void blockingMap(Iterator begin, Iterator end, MapFunctor map)
424{
425 QFuture<void> future = startMap(QThreadPool::globalInstance(), begin, end, map);
426 future.waitForFinished();
427}
428
429// blockingMappedReduced() for sequences
430template <typename ResultType, typename Sequence, typename MapFunctor, typename ReduceFunctor>
431ResultType blockingMappedReduced(QThreadPool *pool,
432 Sequence &&sequence,
433 MapFunctor map,
434 ReduceFunctor reduce,
435 ReduceOptions options = ReduceOptions(UnorderedReduce
436 | SequentialReduce))
437{
438 QFuture<ResultType> future =
439 mappedReduced<ResultType>(pool, std::forward<Sequence>(sequence), map, reduce, options);
440 return future.takeResult();
441}
442
443template <typename ResultType, typename Sequence, typename MapFunctor, typename ReduceFunctor>
444ResultType blockingMappedReduced(Sequence &&sequence,
445 MapFunctor map,
446 ReduceFunctor reduce,
447 ReduceOptions options = ReduceOptions(UnorderedReduce
448 | SequentialReduce))
449{
450 QFuture<ResultType> future =
451 mappedReduced<ResultType>(std::forward<Sequence>(sequence), map, reduce, options);
452 return future.takeResult();
453}
454
455#ifdef Q_CLANG_QDOC
456template <typename ResultType, typename Sequence, typename MapFunctor, typename ReduceFunctor,
457 typename InitialValueType>
458#else
459template <typename ResultType, typename Sequence, typename MapFunctor, typename ReduceFunctor,
460 typename InitialValueType,
461 std::enable_if_t<std::is_convertible_v<InitialValueType, ResultType>, int> = 0>
462#endif
463ResultType blockingMappedReduced(QThreadPool *pool,
464 Sequence &&sequence,
465 MapFunctor map,
466 ReduceFunctor reduce,
467 InitialValueType &&initialValue,
468 ReduceOptions options = ReduceOptions(UnorderedReduce
469 | SequentialReduce))
470{
471 QFuture<ResultType> future = mappedReduced<ResultType>(
472 pool, std::forward<Sequence>(sequence), map, reduce,
473 ResultType(std::forward<InitialValueType>(initialValue)), options);
474 return future.takeResult();
475}
476
477#ifdef Q_CLANG_QDOC
478template <typename ResultType, typename Sequence, typename MapFunctor, typename ReduceFunctor,
479 typename InitialValueType>
480#else
481template <typename ResultType, typename Sequence, typename MapFunctor, typename ReduceFunctor,
482 typename InitialValueType,
483 std::enable_if_t<std::is_convertible_v<InitialValueType, ResultType>, int> = 0>
484#endif
485ResultType blockingMappedReduced(Sequence &&sequence,
486 MapFunctor map,
487 ReduceFunctor reduce,
488 InitialValueType &&initialValue,
489 ReduceOptions options = ReduceOptions(UnorderedReduce
490 | SequentialReduce))
491{
492 QFuture<ResultType> future = mappedReduced<ResultType>(
493 std::forward<Sequence>(sequence), map, reduce,
494 ResultType(std::forward<InitialValueType>(initialValue)), options);
495 return future.takeResult();
496}
497
498template <typename MapFunctor, typename ReduceFunctor, typename Sequence,
499 typename ResultType = typename QtPrivate::ReduceResultType<ReduceFunctor>::ResultType>
500ResultType blockingMappedReduced(QThreadPool *pool,
501 Sequence &&sequence,
502 MapFunctor map,
503 ReduceFunctor reduce,
504 ReduceOptions options = ReduceOptions(UnorderedReduce
505 | SequentialReduce))
506{
507 QFuture<ResultType> future =
508 mappedReduced<ResultType>(pool, std::forward<Sequence>(sequence), map, reduce, options);
509 return future.takeResult();
510}
511
512template <typename MapFunctor, typename ReduceFunctor, typename Sequence,
513 typename ResultType = typename QtPrivate::ReduceResultType<ReduceFunctor>::ResultType>
514ResultType blockingMappedReduced(Sequence &&sequence,
515 MapFunctor map,
516 ReduceFunctor reduce,
517 ReduceOptions options = ReduceOptions(UnorderedReduce
518 | SequentialReduce))
519{
520 QFuture<ResultType> future =
521 mappedReduced<ResultType>(std::forward<Sequence>(sequence), map, reduce, options);
522 return future.takeResult();
523}
524
525#ifdef Q_CLANG_QDOC
526template <typename MapFunctor, typename ReduceFunctor, typename Sequence, typename ResultType,
527 typename InitialValueType>
528#else
529template <typename MapFunctor, typename ReduceFunctor, typename Sequence,
530 typename ResultType = typename QtPrivate::ReduceResultType<ReduceFunctor>::ResultType,
531 typename InitialValueType,
532 std::enable_if_t<std::is_convertible_v<InitialValueType, ResultType>, int> = 0>
533#endif
534ResultType blockingMappedReduced(QThreadPool *pool,
535 Sequence &&sequence,
536 MapFunctor map,
537 ReduceFunctor reduce,
538 InitialValueType &&initialValue,
539 ReduceOptions options = ReduceOptions(UnorderedReduce
540 | SequentialReduce))
541{
542 QFuture<ResultType> future = mappedReduced<ResultType>(
543 pool, std::forward<Sequence>(sequence), map, reduce,
544 ResultType(std::forward<InitialValueType>(initialValue)), options);
545 return future.takeResult();
546}
547
548#ifdef Q_CLANG_QDOC
549template <typename MapFunctor, typename ReduceFunctor, typename Sequence, typename ResultType,
550 typename InitialValueType>
551#else
552template <typename MapFunctor, typename ReduceFunctor, typename Sequence,
553 typename ResultType = typename QtPrivate::ReduceResultType<ReduceFunctor>::ResultType,
554 typename InitialValueType,
555 std::enable_if_t<std::is_convertible_v<InitialValueType, ResultType>, int> = 0>
556#endif
557ResultType blockingMappedReduced(Sequence &&sequence,
558 MapFunctor map,
559 ReduceFunctor reduce,
560 InitialValueType &&initialValue,
561 ReduceOptions options = ReduceOptions(UnorderedReduce
562 | SequentialReduce))
563{
564 QFuture<ResultType> future = mappedReduced<ResultType>(
565 std::forward<Sequence>(sequence), map, reduce,
566 ResultType(std::forward<InitialValueType>(initialValue)), options);
567 return future.takeResult();
568}
569
570// blockingMappedReduced() for iterator ranges
571template <typename ResultType, typename Iterator, typename MapFunctor, typename ReduceFunctor>
572ResultType blockingMappedReduced(QThreadPool *pool,
573 Iterator begin,
574 Iterator end,
575 MapFunctor map,
576 ReduceFunctor reduce,
577 ReduceOptions options = ReduceOptions(UnorderedReduce
578 | SequentialReduce))
579{
580 QFuture<ResultType> future = mappedReduced<ResultType>(pool, begin, end, map, reduce, options);
581 return future.takeResult();
582}
583
584template <typename ResultType, typename Iterator, typename MapFunctor, typename ReduceFunctor>
585ResultType blockingMappedReduced(Iterator begin,
586 Iterator end,
587 MapFunctor map,
588 ReduceFunctor reduce,
589 ReduceOptions options = ReduceOptions(UnorderedReduce
590 | SequentialReduce))
591{
592 QFuture<ResultType> future = mappedReduced<ResultType>(begin, end, map, reduce, options);
593 return future.takeResult();
594}
595
596#ifdef Q_CLANG_QDOC
597template <typename ResultType, typename Iterator, typename MapFunctor, typename ReduceFunctor,
598 typename InitialValueType>
599#else
600template <typename ResultType, typename Iterator, typename MapFunctor, typename ReduceFunctor,
601 typename InitialValueType,
602 std::enable_if_t<std::is_convertible_v<InitialValueType, ResultType>, int> = 0>
603#endif
604ResultType blockingMappedReduced(QThreadPool *pool,
605 Iterator begin,
606 Iterator end,
607 MapFunctor map,
608 ReduceFunctor reduce,
609 InitialValueType &&initialValue,
610 ReduceOptions options = ReduceOptions(UnorderedReduce
611 | SequentialReduce))
612{
613 QFuture<ResultType> future = mappedReduced<ResultType>(
614 pool, begin, end, map, reduce, ResultType(std::forward<InitialValueType>(initialValue)),
615 options);
616 return future.takeResult();
617}
618
619#ifdef Q_CLANG_QDOC
620template <typename ResultType, typename Iterator, typename MapFunctor, typename ReduceFunctor,
621 typename InitialValueType>
622#else
623template <typename ResultType, typename Iterator, typename MapFunctor, typename ReduceFunctor,
624 typename InitialValueType,
625 std::enable_if_t<std::is_convertible_v<InitialValueType, ResultType>, int> = 0>
626#endif
627ResultType blockingMappedReduced(Iterator begin,
628 Iterator end,
629 MapFunctor map,
630 ReduceFunctor reduce,
631 InitialValueType &&initialValue,
632 ReduceOptions options = ReduceOptions(UnorderedReduce
633 | SequentialReduce))
634{
635 QFuture<ResultType> future = mappedReduced<ResultType>(
636 begin, end, map, reduce, ResultType(std::forward<InitialValueType>(initialValue)),
637 options);
638 return future.takeResult();
639}
640
641template <typename Iterator, typename MapFunctor, typename ReduceFunctor,
642 typename ResultType = typename QtPrivate::ReduceResultType<ReduceFunctor>::ResultType>
643ResultType blockingMappedReduced(QThreadPool *pool,
644 Iterator begin,
645 Iterator end,
646 MapFunctor map,
647 ReduceFunctor reduce,
648 ReduceOptions options = ReduceOptions(UnorderedReduce
649 | SequentialReduce))
650{
651 QFuture<ResultType> future = mappedReduced<ResultType>(pool, begin, end, map, reduce, options);
652 return future.takeResult();
653}
654
655template <typename Iterator, typename MapFunctor, typename ReduceFunctor,
656 typename ResultType = typename QtPrivate::ReduceResultType<ReduceFunctor>::ResultType>
657ResultType blockingMappedReduced(Iterator begin,
658 Iterator end,
659 MapFunctor map,
660 ReduceFunctor reduce,
661 ReduceOptions options = ReduceOptions(UnorderedReduce
662 | SequentialReduce))
663{
664 QFuture<ResultType> future = mappedReduced<ResultType>(begin, end, map, reduce, options);
665 return future.takeResult();
666}
667
668#ifdef Q_CLANG_QDOC
669template <typename Iterator, typename MapFunctor, typename ReduceFunctor, typename ResultType,
670 typename InitialValueType>
671#else
672template <typename Iterator, typename MapFunctor, typename ReduceFunctor,
673 typename ResultType = typename QtPrivate::ReduceResultType<ReduceFunctor>::ResultType,
674 typename InitialValueType,
675 std::enable_if_t<std::is_convertible_v<InitialValueType, ResultType>, int> = 0>
676#endif
677ResultType blockingMappedReduced(QThreadPool *pool,
678 Iterator begin,
679 Iterator end,
680 MapFunctor map,
681 ReduceFunctor reduce,
682 InitialValueType &&initialValue,
683 ReduceOptions options = ReduceOptions(UnorderedReduce
684 | SequentialReduce))
685{
686 QFuture<ResultType> future = mappedReduced<ResultType>(
687 pool, begin, end, map, reduce, ResultType(std::forward<InitialValueType>(initialValue)),
688 options);
689 return future.takeResult();
690}
691
692#ifdef Q_CLANG_QDOC
693template <typename Iterator, typename MapFunctor, typename ReduceFunctor, typename ResultType,
694 typename InitialValueType>
695#else
696template <typename Iterator, typename MapFunctor, typename ReduceFunctor,
697 typename ResultType = typename QtPrivate::ReduceResultType<ReduceFunctor>::ResultType,
698 typename InitialValueType,
699 std::enable_if_t<std::is_convertible_v<InitialValueType, ResultType>, int> = 0>
700#endif
701ResultType blockingMappedReduced(Iterator begin,
702 Iterator end,
703 MapFunctor map,
704 ReduceFunctor reduce,
705 InitialValueType &&initialValue,
706 ReduceOptions options = ReduceOptions(UnorderedReduce
707 | SequentialReduce))
708{
709 QFuture<ResultType> future = mappedReduced<ResultType>(
710 begin, end, map, reduce, ResultType(std::forward<InitialValueType>(initialValue)),
711 options);
712 return future.takeResult();
713}
714
715// mapped() for sequences with a different putput sequence type.
716template <typename OutputSequence, typename InputSequence, typename MapFunctor>
717OutputSequence blockingMapped(QThreadPool *pool, InputSequence &&sequence, MapFunctor map)
718{
719 return blockingMappedReduced<OutputSequence>(pool, std::forward<InputSequence>(sequence), map,
720 QtPrivate::PushBackWrapper(), OrderedReduce);
721}
722
723template <typename OutputSequence, typename InputSequence, typename MapFunctor>
724OutputSequence blockingMapped(InputSequence &&sequence, MapFunctor map)
725{
726 return blockingMappedReduced<OutputSequence>(QThreadPool::globalInstance(),
727 std::forward<InputSequence>(sequence), map,
728 QtPrivate::PushBackWrapper(), OrderedReduce);
729}
730
731template <typename MapFunctor, typename InputSequence>
732auto blockingMapped(QThreadPool *pool, InputSequence &&sequence, MapFunctor map)
733{
734 using OutputSequence = typename QtPrivate::MapSequenceResultType<std::decay_t<InputSequence>,
735 MapFunctor>::ResultType;
736 return blockingMappedReduced<OutputSequence>(pool, std::forward<InputSequence>(sequence), map,
737 QtPrivate::PushBackWrapper(), OrderedReduce);
738}
739
740template <typename MapFunctor, typename InputSequence>
741auto blockingMapped(InputSequence &&sequence, MapFunctor map)
742{
743 using OutputSequence = typename QtPrivate::MapSequenceResultType<std::decay_t<InputSequence>,
744 MapFunctor>::ResultType;
745 return blockingMappedReduced<OutputSequence>(QThreadPool::globalInstance(),
746 std::forward<InputSequence>(sequence), map,
747 QtPrivate::PushBackWrapper(), OrderedReduce);
748}
749
750// mapped() for iterator ranges
751template <typename Sequence, typename Iterator, typename MapFunctor>
752Sequence blockingMapped(QThreadPool *pool, Iterator begin, Iterator end, MapFunctor map)
753{
754 return blockingMappedReduced<Sequence>(pool, begin, end, map,
755 QtPrivate::PushBackWrapper(), OrderedReduce);
756}
757
758template <typename Sequence, typename Iterator, typename MapFunctor>
759Sequence blockingMapped(Iterator begin, Iterator end, MapFunctor map)
760{
761 return blockingMappedReduced<Sequence>(QThreadPool::globalInstance(), begin, end, map,
762 QtPrivate::PushBackWrapper(), OrderedReduce);
763}
764
765template <typename Iterator, typename MapFunctor>
766auto blockingMapped(QThreadPool *pool, Iterator begin, Iterator end, MapFunctor map)
767{
768 using OutputSequence = QtPrivate::MapResultType<Iterator, MapFunctor>;
769 return blockingMappedReduced<OutputSequence>(pool, begin, end, map,
770 QtPrivate::PushBackWrapper(), OrderedReduce);
771}
772
773template <typename Iterator, typename MapFunctor>
774auto blockingMapped(Iterator begin, Iterator end, MapFunctor map)
775{
776 using OutputSequence = QtPrivate::MapResultType<Iterator, MapFunctor>;
777 return blockingMappedReduced<OutputSequence>(QThreadPool::globalInstance(), begin, end, map,
778 QtPrivate::PushBackWrapper(), OrderedReduce);
779}
780
781} // namespace QtConcurrent
782
783
784QT_END_NAMESPACE
785
786#endif // QT_NO_CONCURRENT
787
788#endif
789