blob: 7b5e5680ca63cbb6d0778c9a51019f54523ee0b8 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
|
/** ---------------------------------------------------------------------------
* @file: syncqueue.h
*
* Copyright (c) 2017 Yann Herklotz Grave <ymherklotz@gmail.com>
* MIT License, see LICENSE file for more details.
* ----------------------------------------------------------------------------
*/
#ifndef YAGE_UTIL_SYNCQUEUE_H
#define YAGE_UTIL_SYNCQUEUE_H
#include <condition_variable>
#include <mutex>
#include <queue>
namespace yage
{
template <typename T>
class SyncQueue
{
public:
SyncQueue() = default;
SyncQueue(const SyncQueue &) = delete;
SyncQueue &operator=(const SyncQueue &) = delete;
T pop();
void pop(T &item);
void push(const T &item);
void push(T &&item);
private:
std::queue<T> queue_;
std::mutex mutex_;
std::condition_variable cond_;
};
// Template definitions
template <typename T>
T SyncQueue<T>::pop()
{
std::unique_lock<std::mutex> mlock(mutex_);
while (queue_.empty()) {
cond_.wait(mlock);
}
auto item = queue_.front();
queue_.pop();
return item;
}
template <typename T>
void SyncQueue<T>::pop(T &item)
{
std::unique_lock<std::mutex> mlock(mutex_);
while (queue_.empty()) {
cond_.wait(mlock);
}
item = queue_.front();
queue_.pop();
}
template <typename T>
void SyncQueue<T>::push(const T &item)
{
std::unique_lock<std::mutex> mlock(mutex_);
queue_.push(item);
mlock.unlock();
cond_.notify_one();
}
template <typename T>
void SyncQueue<T>::push(T &&item)
{
std::unique_lock<std::mutex> mlock(mutex_);
queue_.push(std::move(item));
mlock.unlock();
cond_.notify_one();
}
} // namespace yage
#endif
|
