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/*
* Semaphore
* by Pierre Gaston (http://p9as.blogspot.com/2012/06/c11-semaphores.html)
* modified by Joel Low for Botan
*
*/
#ifndef BOTAN_SEMAPHORE_H__
#define BOTAN_SEMAPHORE_H__
#include <mutex>
#include <condition_variable>
namespace Botan {
class Semaphore
{
public:
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
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