Open Lighting Architecture: include/ola/thread/Future.h Source File

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Future.h
1/*
2 * This library is free software; you can redistribute it and/or
3 * modify it under the terms of the GNU Lesser General Public
4 * License as published by the Free Software Foundation; either
5 * version 2.1 of the License, or (at your option) any later version.
6 *
7 * This library is distributed in the hope that it will be useful,
8 * but WITHOUT ANY WARRANTY; without even the implied warranty of
9 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
10 * Lesser General Public License for more details.
11 *
12 * You should have received a copy of the GNU Lesser General Public
13 * License along with this library; if not, write to the Free Software
14 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
15 *
16 * Future.h
17 * An experimental implementation of Futures.
18 * Copyright (C) 2010 Simon Newton
19 */
20
21#ifndef INCLUDE_OLA_THREAD_FUTURE_H_
22#define INCLUDE_OLA_THREAD_FUTURE_H_
23
24#include <ola/thread/FuturePrivate.h>
25
26namespace ola {
27namespace thread {
28
32template <typename T>
33 class Future {
34 public:
35 Future() : m_impl(new FutureImpl<T>()) {}
36
37 ~Future() {
38 m_impl->DeRef();
39 }
40
41 Future(const Future &other) : m_impl(other.m_impl) {
42 other.m_impl->Ref();
43 }
44
45 Future& operator=(const Future<T> &other) {
46 if (this != &other) {
47 m_impl->DeRef();
48 other.m_impl->Ref();
49 m_impl = other.m_impl;
50 }
51 return *this;
52 }
53
54 bool IsComplete() const {
55 return m_impl->IsComplete();
56 }
57
58 const T& Get() {
59 return m_impl->Get();
60 }
61
62 void Set(const T &t) {
63 m_impl->Set(t);
64 }
65
66 private:
67 class FutureImpl<T> *m_impl;
68};
69
73template <>
74 class Future<void> {
75 public:
76 Future() : m_impl(new FutureImpl<void>()) {}
77
78 ~Future() {
79 m_impl->DeRef();
80 }
81
82 Future(const Future &other) : m_impl(other.m_impl) {
83 other.m_impl->Ref();
84 }
85
86 Future& operator=(const Future<void> &other) {
87 if (this != &other) {
88 m_impl->DeRef();
89 other.m_impl->Ref();
90 m_impl = other.m_impl;
91 }
92 return *this;
93 }
94
95 bool IsComplete() const {
96 return m_impl->IsComplete();
97 }
98
99 void Get() {
100 m_impl->Get();
101 }
102
103 void Set() {
104 m_impl->Set();
105 }
106
107 private:
108 class FutureImpl<void> *m_impl;
109};
110} // namespace thread
111} // namespace ola
112#endif // INCLUDE_OLA_THREAD_FUTURE_H_
ola::thread::FutureImpl
Definition FuturePrivate.h:32
ola::thread
Threads and synchronization mechanisms.
Definition ConsumerThread.cpp:25
ola
The namespace containing all OLA symbols.
Definition Credentials.cpp:44