Zeek Statistics

- Added statistics hook
- Fixed rlimit usage
- Removed POpen for windows implementation layer
- Completed statistics plugin

src/statistics/Plugin.h

@@ -0,0 +1,29 @@
+
+#pragma once
+
+#include <unordered_map>
+#include <mutex>
+#include <string>
+#include "zeek/plugin/Plugin.h"
+
+namespace zeek::plugin::statistics {
+
+class Plugin : public zeek::plugin::Plugin
+{
+protected:
+	bool HookQueueEvent(zeek::Event* event) override;
+
+	zeek::plugin::Configuration Configure() override;
+
+public:
+	std::unordered_map<const char*, int> GetAndResetEventStatistics();
+	void StartEventNamesStatisticsMonitor();
+	
+private:
+	std::unordered_map<const char*, int> m_eventNameCounters;
+	std::mutex m_lock;
+
+};
+
+extern Plugin plugin;
+}