logger.hpp

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// Copyright 2009-present MongoDB, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
 
#pragma once
 
#include <mongocxx/v1/logger-fwd.hpp> // IWYU pragma: export
 
//
 
#include <mongocxx/v1/detail/prelude.hpp>
 
#include <bsoncxx/v1/detail/macros.hpp>
#include <bsoncxx/v1/stdx/string_view.hpp>
 
#include <mongocxx/v1/config/export.hpp>
 
#include <functional>
#include <memory>
 
namespace mongocxx {
namespace v1 {

enum class log_level {
    k_error,    
    k_critical, 
    k_warning,  
    k_message,  
    k_info,     
    k_debug,    
    k_trace,    
};
 
MONGOCXX_ABI_EXPORT_CDECL(bsoncxx::v1::stdx::string_view) to_string(log_level level);

using log_handler =
    std::function<void MONGOCXX_ABI_CDECL(log_level, bsoncxx::v1::stdx::string_view, bsoncxx::v1::stdx::string_view)>;
 
BSONCXX_PRIVATE_WARNINGS_PUSH();
BSONCXX_PRIVATE_WARNINGS_DISABLE(MSVC(4251));
BSONCXX_PRIVATE_WARNINGS_DISABLE(MSVC(4275));

class logger {
   public:
    virtual ~logger();

    logger(logger&&) = default;

    logger& operator=(logger&&) = default;

    logger(logger const&) = default;

    logger& operator=(logger const&) = default;

    logger() = default;

    virtual void operator()(
        log_level level,
        bsoncxx::v1::stdx::string_view domain,
        bsoncxx::v1::stdx::string_view message) noexcept = 0;
};
 
BSONCXX_PRIVATE_WARNINGS_POP();

class default_logger {};

MONGOCXX_ABI_EXPORT_CDECL(void) set_global_logger(log_handler handler);

MONGOCXX_ABI_EXPORT_CDECL(void) set_global_logger(v1::default_logger tag);

class logger_guard {
   private:
    class impl;
    std::unique_ptr<impl> _impl;
 
   public:
    MONGOCXX_ABI_EXPORT_CDECL() ~logger_guard();

    logger_guard(logger_guard&&) = delete;

    logger_guard& operator=(logger_guard&&) = delete;

    logger_guard(logger_guard const&) = delete;

    logger_guard& operator=(logger_guard const&) = delete;

    explicit MONGOCXX_ABI_EXPORT_CDECL() logger_guard(log_handler handler);

    explicit MONGOCXX_ABI_EXPORT_CDECL() logger_guard(v1::default_logger tag);
};
 
} // namespace v1
} // namespace mongocxx
 
#include <mongocxx/v1/detail/postlude.hpp>