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diff --git a/lib/spdlog/spdlog.h b/lib/spdlog/spdlog.h
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+//
+// Copyright(c) 2015 Gabi Melman.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
+// spdlog main header file.
+// see example.cpp for usage example
+
+#pragma once
+
+#include "common.h"
+#include "logger.h"
+
+#include <chrono>
+#include <functional>
+#include <memory>
+#include <string>
+
+namespace spdlog {
+
+//
+// Return an existing logger or nullptr if a logger with such name doesn't exist.
+// example: spdlog::get("my_logger")->info("hello {}", "world");
+//
+std::shared_ptr<logger> get(const std::string &name);
+
+//
+// Set global formatting
+// example: spdlog::set_pattern("%Y-%m-%d %H:%M:%S.%e %l : %v");
+//
+void set_pattern(const std::string &format_string);
+void set_formatter(formatter_ptr f);
+
+//
+// Set global logging level
+//
+void set_level(level::level_enum log_level);
+
+//
+// Set global flush level
+//
+void flush_on(level::level_enum log_level);
+
+//
+// Set global error handler
+//
+void set_error_handler(log_err_handler handler);
+
+//
+// Turn on async mode (off by default) and set the queue size for each async_logger.
+// effective only for loggers created after this call.
+// queue_size: size of queue (must be power of 2):
+//    Each logger will pre-allocate a dedicated queue with queue_size entries upon construction.
+//
+// async_overflow_policy (optional, block_retry by default):
+//    async_overflow_policy::block_retry - if queue is full, block until queue has room for the new log entry.
+//    async_overflow_policy::discard_log_msg - never block and discard any new messages when queue overflows.
+//
+// worker_warmup_cb (optional):
+//     callback function that will be called in worker thread upon start (can be used to init stuff like thread affinity)
+//
+// worker_teardown_cb (optional):
+//     callback function that will be called in worker thread upon exit
+//
+void set_async_mode(size_t queue_size, const async_overflow_policy overflow_policy = async_overflow_policy::block_retry,
+    const std::function<void()> &worker_warmup_cb = nullptr,
+    const std::chrono::milliseconds &flush_interval_ms = std::chrono::milliseconds::zero(),
+    const std::function<void()> &worker_teardown_cb = nullptr);
+
+// Turn off async mode
+void set_sync_mode();
+
+//
+// Create and register multi/single threaded basic file logger.
+// Basic logger simply writes to given file without any limitations or rotations.
+//
+std::shared_ptr<logger> basic_logger_mt(const std::string &logger_name, const filename_t &filename, bool truncate = false);
+std::shared_ptr<logger> basic_logger_st(const std::string &logger_name, const filename_t &filename, bool truncate = false);
+
+//
+// Create and register multi/single threaded rotating file logger
+//
+std::shared_ptr<logger> rotating_logger_mt(
+    const std::string &logger_name, const filename_t &filename, size_t max_file_size, size_t max_files);
+
+std::shared_ptr<logger> rotating_logger_st(
+    const std::string &logger_name, const filename_t &filename, size_t max_file_size, size_t max_files);
+
+//
+// Create file logger which creates new file on the given time (default in midnight):
+//
+std::shared_ptr<logger> daily_logger_mt(const std::string &logger_name, const filename_t &filename, int hour = 0, int minute = 0);
+std::shared_ptr<logger> daily_logger_st(const std::string &logger_name, const filename_t &filename, int hour = 0, int minute = 0);
+
+//
+// Create and register stdout/stderr loggers
+//
+std::shared_ptr<logger> stdout_logger_mt(const std::string &logger_name);
+std::shared_ptr<logger> stdout_logger_st(const std::string &logger_name);
+std::shared_ptr<logger> stderr_logger_mt(const std::string &logger_name);
+std::shared_ptr<logger> stderr_logger_st(const std::string &logger_name);
+//
+// Create and register colored stdout/stderr loggers
+//
+std::shared_ptr<logger> stdout_color_mt(const std::string &logger_name);
+std::shared_ptr<logger> stdout_color_st(const std::string &logger_name);
+std::shared_ptr<logger> stderr_color_mt(const std::string &logger_name);
+std::shared_ptr<logger> stderr_color_st(const std::string &logger_name);
+
+//
+// Create and register a syslog logger
+//
+#ifdef SPDLOG_ENABLE_SYSLOG
+std::shared_ptr<logger> syslog_logger(
+    const std::string &logger_name, const std::string &ident = "", int syslog_option = 0, int syslog_facilty = (1 << 3));
+#endif
+
+#if defined(__ANDROID__)
+std::shared_ptr<logger> android_logger(const std::string &logger_name, const std::string &tag = "spdlog");
+#endif
+
+// Create and register a logger with a single sink
+std::shared_ptr<logger> create(const std::string &logger_name, const sink_ptr &sink);
+
+// Create and register a logger with multiple sinks
+std::shared_ptr<logger> create(const std::string &logger_name, sinks_init_list sinks);
+
+template<class It>
+std::shared_ptr<logger> create(const std::string &logger_name, const It &sinks_begin, const It &sinks_end);
+
+// Create and register a logger with templated sink type
+// Example:
+// spdlog::create<daily_file_sink_st>("mylog", "dailylog_filename");
+template<typename Sink, typename... Args>
+std::shared_ptr<spdlog::logger> create(const std::string &logger_name, Args... args);
+
+// Create and register an async logger with a single sink
+std::shared_ptr<logger> create_async(const std::string &logger_name, const sink_ptr &sink, size_t queue_size,
+    const async_overflow_policy overflow_policy = async_overflow_policy::block_retry,
+    const std::function<void()> &worker_warmup_cb = nullptr,
+    const std::chrono::milliseconds &flush_interval_ms = std::chrono::milliseconds::zero(),
+    const std::function<void()> &worker_teardown_cb = nullptr);
+
+// Create and register an async logger with multiple sinks
+std::shared_ptr<logger> create_async(const std::string &logger_name, sinks_init_list sinks, size_t queue_size,
+    const async_overflow_policy overflow_policy = async_overflow_policy::block_retry,
+    const std::function<void()> &worker_warmup_cb = nullptr,
+    const std::chrono::milliseconds &flush_interval_ms = std::chrono::milliseconds::zero(),
+    const std::function<void()> &worker_teardown_cb = nullptr);
+
+template<class It>
+std::shared_ptr<logger> create_async(const std::string &logger_name, const It &sinks_begin, const It &sinks_end, size_t queue_size,
+    const async_overflow_policy overflow_policy = async_overflow_policy::block_retry,
+    const std::function<void()> &worker_warmup_cb = nullptr,
+    const std::chrono::milliseconds &flush_interval_ms = std::chrono::milliseconds::zero(),
+    const std::function<void()> &worker_teardown_cb = nullptr);
+
+// Register the given logger with the given name
+void register_logger(std::shared_ptr<logger> logger);
+
+// Apply a user defined function on all registered loggers
+// Example:
+// spdlog::apply_all([&](std::shared_ptr<spdlog::logger> l) {l->flush();});
+void apply_all(std::function<void(std::shared_ptr<logger>)> fun);
+
+// Drop the reference to the given logger
+void drop(const std::string &name);
+
+// Drop all references from the registry
+void drop_all();
+
+///////////////////////////////////////////////////////////////////////////////
+//
+// Trace & Debug can be switched on/off at compile time for zero cost debug statements.
+// Uncomment SPDLOG_DEBUG_ON/SPDLOG_TRACE_ON in tweakme.h to enable.
+// SPDLOG_TRACE(..) will also print current file and line.
+//
+// Example:
+// spdlog::set_level(spdlog::level::trace);
+// SPDLOG_TRACE(my_logger, "some trace message");
+// SPDLOG_TRACE(my_logger, "another trace message {} {}", 1, 2);
+// SPDLOG_DEBUG(my_logger, "some debug message {} {}", 3, 4);
+///////////////////////////////////////////////////////////////////////////////
+
+#ifdef SPDLOG_TRACE_ON
+#define SPDLOG_STR_H(x) #x
+#define SPDLOG_STR_HELPER(x) SPDLOG_STR_H(x)
+#ifdef _MSC_VER
+#define SPDLOG_TRACE(logger, ...) logger->trace("[ " __FILE__ "(" SPDLOG_STR_HELPER(__LINE__) ") ] " __VA_ARGS__)
+#else
+#define SPDLOG_TRACE(logger, ...) logger->trace("[ " __FILE__ ":" SPDLOG_STR_HELPER(__LINE__) " ] " __VA_ARGS__)
+#endif
+#else
+#define SPDLOG_TRACE(logger, ...) (void)0
+#endif
+
+#ifdef SPDLOG_DEBUG_ON
+#define SPDLOG_DEBUG(logger, ...) logger->debug(__VA_ARGS__)
+#else
+#define SPDLOG_DEBUG(logger, ...) (void)0
+#endif
+
+} // namespace spdlog
+
+#include "details/spdlog_impl.h"