1 files changed, 56 insertions, 0 deletions
diff --git a/deps/include/spdlog/sinks/callback_sink.h b/deps/include/spdlog/sinks/callback_sink.h
new file mode 100644
index 0000000..2001ac0
--- /dev/null
+++ b/deps/include/spdlog/sinks/callback_sink.h
@@ -0,0 +1,56 @@
+// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+
+#pragma once
+
+#include <spdlog/details/null_mutex.h>
+#include <spdlog/details/synchronous_factory.h>
+#include <spdlog/sinks/base_sink.h>
+
+#include <mutex>
+#include <string>
+
+namespace spdlog {
+
+// callbacks type
+typedef std::function<void(const details::log_msg &msg)> custom_log_callback;
+
+namespace sinks {
+/*
+ * Trivial callback sink, gets a callback function and calls it on each log
+ */
+template <typename Mutex>
+class callback_sink final : public base_sink<Mutex> {
+public:
+    explicit callback_sink(const custom_log_callback &callback)
+        : callback_{callback} {}
+
+protected:
+    void sink_it_(const details::log_msg &msg) override { callback_(msg); }
+    void flush_() override{}
+
+private:
+    custom_log_callback callback_;
+};
+
+using callback_sink_mt = callback_sink<std::mutex>;
+using callback_sink_st = callback_sink<details::null_mutex>;
+
+}  // namespace sinks
+
+//
+// factory functions
+//
+template <typename Factory = spdlog::synchronous_factory>
+inline std::shared_ptr<logger> callback_logger_mt(const std::string &logger_name,
+                                                  const custom_log_callback &callback) {
+    return Factory::template create<sinks::callback_sink_mt>(logger_name, callback);
+}
+
+template <typename Factory = spdlog::synchronous_factory>
+inline std::shared_ptr<logger> callback_logger_st(const std::string &logger_name,
+                                                  const custom_log_callback &callback) {
+    return Factory::template create<sinks::callback_sink_st>(logger_name, callback);
+}
+
+}  // namespace spdlog