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Diffstat (limited to 'async/src/future.h')
-rw-r--r-- | async/src/future.h | 92 |
1 files changed, 92 insertions, 0 deletions
diff --git a/async/src/future.h b/async/src/future.h new file mode 100644 index 0000000..eb3de1e --- /dev/null +++ b/async/src/future.h | |||
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1 | /* | ||
2 | * Copyright 2014 Daniel Vrátil <dvratil@redhat.com> | ||
3 | * | ||
4 | * This program is free software; you can redistribute it and/or | ||
5 | * modify it under the terms of the GNU General Public License as | ||
6 | * published by the Free Software Foundation; either version 2 of | ||
7 | * the License or (at your option) version 3 or any later version | ||
8 | * accepted by the membership of KDE e.V. (or its successor approved | ||
9 | * by the membership of KDE e.V.), which shall act as a proxy | ||
10 | * defined in Section 14 of version 3 of the license. | ||
11 | * | ||
12 | * This program is distributed in the hope that it will be useful, | ||
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
15 | * GNU General Public License for more details. | ||
16 | * | ||
17 | * You should have received a copy of the GNU General Public License | ||
18 | * along with this program. If not, see <http://www.gnu.org/licenses/>. | ||
19 | * | ||
20 | */ | ||
21 | |||
22 | #ifndef FUTURE_H | ||
23 | #define FUTURE_H | ||
24 | |||
25 | class QEventLoop; | ||
26 | |||
27 | namespace Async { | ||
28 | |||
29 | class FutureBase | ||
30 | { | ||
31 | public: | ||
32 | FutureBase(); | ||
33 | FutureBase(const FutureBase &other); | ||
34 | virtual ~FutureBase(); | ||
35 | |||
36 | void setFinished(); | ||
37 | bool isFinished() const; | ||
38 | void waitForFinished(); | ||
39 | |||
40 | protected: | ||
41 | bool mFinished; | ||
42 | QEventLoop *mWaitLoop; | ||
43 | }; | ||
44 | |||
45 | template<typename T> | ||
46 | class Future : public FutureBase | ||
47 | { | ||
48 | public: | ||
49 | Future() | ||
50 | : FutureBase() | ||
51 | {} | ||
52 | |||
53 | Future(const Future<T> &other) | ||
54 | : FutureBase(other) | ||
55 | , mValue(other.mValue) | ||
56 | {} | ||
57 | |||
58 | Future(const T &val) | ||
59 | : FutureBase() | ||
60 | , mValue(val) | ||
61 | {} | ||
62 | |||
63 | void setValue(const T &val) | ||
64 | { | ||
65 | mValue = val; | ||
66 | } | ||
67 | |||
68 | T value() const | ||
69 | { | ||
70 | return mValue; | ||
71 | } | ||
72 | |||
73 | private: | ||
74 | T mValue; | ||
75 | }; | ||
76 | |||
77 | template<> | ||
78 | class Future<void> : public FutureBase | ||
79 | { | ||
80 | public: | ||
81 | Future() | ||
82 | : FutureBase() | ||
83 | {} | ||
84 | |||
85 | Future(const Future<void> &other) | ||
86 | : FutureBase(other) | ||
87 | {} | ||
88 | }; | ||
89 | |||
90 | } // namespace Async | ||
91 | |||
92 | #endif // FUTURE_H | ||