refactor: rename std to common

1 files changed, 60 insertions, 0 deletions

diff --git a/src/common/time.hpp b/src/common/time.hpp
new file mode 100644
index 0000000..8efbd28
--- /dev/null
+++ b/src/common/time.hpp
@@ -0,0 +1,60 @@
+#pragma once
+
+#include <stdint.h>
+
+constexpr double MICROS_TO_SECS = 0.000001;
+constexpr double MICROS_TO_MILLIS = 0.001;
+
+namespace common
+{
+
+	/**
+	 * A representation of time.
+	 */
+	class Time
+	{
+	public:
+		/**
+		 * A representation of time.
+		 *
+		 * @param time_micros Time in microseconds
+		 */
+		explicit Time(uint64_t time_micros);
+
+		/**
+		 * Updates the time to the current time.
+		 */
+		void update();
+
+		/**
+		 * Returns the difference between two points in time.
+		 *
+		 * @param prev_time A previous point in time
+		 */
+		Time diff(Time prev_time) const;
+
+		/**
+		 * Returns the time in seconds.
+		 */
+		double secs() const;
+
+		/**
+		 * Returns the time in milliseconds.
+		 */
+		double millisecs() const;
+
+		/**
+		 * Returns the time in microseconds.
+		 */
+		uint64_t microsecs() const;
+
+	private:
+		uint64_t _time_micros;
+	};
+
+	/**
+	 * Returns a time object for the time since the program started.
+	 */
+	Time time_now();
+
+} // namespace common