sinks now parameterized by mutex T

include/c11log/sinks/console_sinks.h

-#pragma once
-
-#include <iostream>
-#include <mutex>
-#include <memory>
-
-#include "base_sink.h"
-
-namespace c11log
-{
-namespace sinks
-{
-class console_sink: public base_sink
-{
-public:
-    explicit console_sink(std::ostream& os):_ostream(os) {}
-    console_sink(const console_sink&) = delete;
-    console_sink& operator=(const console_sink&) = delete;
-    virtual ~console_sink() = default;
-
-
-protected:
-    virtual void _sink_it(const details::log_msg& msg) override
-    {
-        std::lock_guard<std::mutex> lock(_mutex);
-        _ostream << msg.formatted;
-    }
-
-    std::ostream& _ostream;
-    std::mutex _mutex;
-};
-
-
-inline std::shared_ptr<console_sink>& stdout_sink ()
-{
-    static auto inst = std::make_shared<console_sink>(std::cout);
-    return inst;
-}
-
-inline std::shared_ptr<console_sink>& stderr_sink ()
-{
-    static auto inst = std::make_shared<console_sink>(std::cerr);
-    return inst;
-}
-
-}
-}

include/c11log/sinks/isink.h

+#pragma once
+
+#include "../details/log_msg.h"
+
+namespace c11log
+{
+namespace sinks
+{
+class isink
+{
+public:
+    virtual void log(const details::log_msg& msg) = 0;
+    virtual void enable(bool enabled) = 0;
+    virtual bool is_enabled() = 0;
+};
+}
+}
+

include/c11log/sinks/stdout_sinks.h

+#pragma once
+
+#include <iostream>
+#include <mutex>
+#include "ostream_sink.h"
+#include "../details/null_mutex.h"
+
+namespace c11log
+{
+namespace sinks
+{
+
+template <class Mutex>
+class stdout_sink : public ostream_sink<Mutex>
+{
+public:
+    stdout_sink() : ostream_sink<Mutex>(std::cout) {}
+};
+
+typedef stdout_sink<std::mutex> stdout_sink_mt;
+typedef stdout_sink<details::null_mutex> stdout_sink_st;
+
+template <class Mutex>
+class stderr_sink : public ostream_sink<Mutex>
+{
+public:
+    stderr_sink() : ostream_sink<Mutex>(std::cerr) {}
+};
+
+typedef stderr_sink<std::mutex> stderr_sink_mt;
+typedef stderr_sink<details::null_mutex> stderr_sink_st;
+}
+}
\ No newline at end of file