Add EventCounter class

2 files changed, 52 insertions, 0 deletions

diff --git a/lib/eventCounter.cpp b/lib/eventCounter.cpp
new file mode 100644
index 0000000..92383c5
--- /dev/null
+++ b/lib/eventCounter.cpp
@@ -0,0 +1,30 @@
+#include "eventCounter.h"
+#include <algorithm>
+
+namespace MyGrate {
+	void
+	EventCounter::tick(mariadb_rpl_event e)
+	{
+		counters[e]++;
+	}
+	const EventCounter::Counters &
+	EventCounter::getAll() const
+	{
+		return counters;
+	}
+	unsigned long
+	EventCounter::get(mariadb_rpl_event e) const
+	{
+		return counters[e];
+	}
+	bool
+	EventCounter::operator>=(const EventCounter & target) const
+	{
+		for (size_t e {}; e < ENUM_END_EVENT; e++) {
+			if (counters[e] < target.counters[e]) {
+				return false;
+			}
+		}
+		return true;
+	}
+}
diff --git a/lib/eventCounter.h b/lib/eventCounter.h
new file mode 100644
index 0000000..522310a
--- /dev/null
+++ b/lib/eventCounter.h
@@ -0,0 +1,22 @@
+#ifndef MYGRATE_EVENTCOUNTER_H
+#define MYGRATE_EVENTCOUNTER_H
+
+#include "mariadb_repl.h"
+#include <array>
+
+namespace MyGrate {
+	class EventCounter {
+	public:
+		using Counters = std::array<unsigned long, ENUM_END_EVENT>;
+
+		void tick(mariadb_rpl_event);
+		const Counters & getAll() const;
+		unsigned long get(mariadb_rpl_event) const;
+		bool operator>=(const EventCounter &) const;
+
+	protected:
+		Counters counters {};
+	};
+}
+
+#endif