blob: 538d9ecb51189fc7c57396e1dabad09d42bee512 (
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
|
/*
* Semaphore
* (C) 2013 Joel Low
*
* Botan is released under the Simplified BSD License (see license.txt)
*/
#ifndef BOTAN_SEMAPHORE_H_
#define BOTAN_SEMAPHORE_H_
#include <condition_variable>
#include <mutex>
namespace Botan {
class Semaphore final
{
public:
explicit Semaphore(int value = 0) : m_value(value), m_wakeups(0) {}
void acquire();
void release(size_t n = 1);
private:
int m_value;
int m_wakeups;
std::mutex m_mutex;
std::condition_variable m_cond;
};
}
#endif
|
