Added ostream_sink

include/c11log/sinks/ostream_sink.h

@@ -0,0 +1,36 @@
+#pragma once
+
+#include <iostream>
+#include <mutex>
+#include <memory>
+
+#include "../details/null_mutex.h"
+#include "base_sink.h"
+
+namespace c11log
+{
+namespace sinks
+{
+template<class Mutex>
+class ostream_sink: public base_sink<Mutex>
+{
+public:
+    explicit ostream_sink(std::ostream& os) :_ostream(os) {}
+    ostream_sink(const ostream_sink&) = delete;
+    ostream_sink& operator=(const ostream_sink&) = delete;
+    virtual ~ostream_sink() = default;
+
+
+protected:
+    virtual void _sink_it(const details::log_msg& msg) override
+    {
+        _ostream << msg.formatted;
+    }
+
+    std::ostream& _ostream;
+};
+
+typedef ostream_sink<std::mutex> ostream_sink_mt;
+typedef ostream_sink<details::null_mutex> ostream_sink_st;
+}
+}