lokinet/llarp/util/stopwatch.hpp
2019-08-12 16:52:58 +01:00

54 lines
871 B
C++

#ifndef LLARP_STOPWATCH_HPP
#define LLARP_STOPWATCH_HPP
#include <absl/types/optional.h>
#include <absl/time/clock.h>
namespace llarp
{
namespace util
{
class Stopwatch
{
absl::optional< absl::Time > m_start;
absl::optional< absl::Time > m_stop;
public:
Stopwatch() = default;
void
start()
{
assert(!m_start);
assert(!m_stop);
m_start.emplace(absl::Now());
}
void
stop()
{
assert(m_start);
assert(!m_stop);
m_stop.emplace(absl::Now());
}
bool
done() const
{
return m_start && m_stop;
}
absl::Duration
time() const
{
assert(m_start);
assert(m_stop);
return m_stop.value() - m_start.value();
}
};
} // namespace util
} // namespace llarp
#endif