Source code
Revision control
Copy as Markdown
Other Tools
/*
* Barrier
* (C) 2016 Joel Low
*
* Botan is released under the Simplified BSD License (see license.txt)
*/
#include <botan/internal/barrier.h>
namespace Botan {
void Barrier::wait(size_t delta)
{
std::lock_guard<std::mutex> lock(m_mutex);
m_value += delta;
}
void Barrier::sync()
{
std::unique_lock<std::mutex> lock(m_mutex);
if(m_value > 1)
{
--m_value;
const size_t current_syncs = m_syncs;
m_cond.wait(lock, [this, ¤t_syncs] { return m_syncs != current_syncs; });
}
else
{
m_value = 0;
++m_syncs;
m_cond.notify_all();
}
}
}