89 lines
2.1 KiB
C++
89 lines
2.1 KiB
C++
#pragma once
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#include "../common_types.h"
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#include "../logger.h"
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#include "stack_oss.h"
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// line_logger class.
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// aggregates single log line (on the stack if possibe) and calls the logger upon destruction
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namespace c11log
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{
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//class logger;
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namespace details
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{
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class line_logger
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{
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public:
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line_logger(logger* callback_logger, level::level_enum msg_level, bool enabled):
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_callback_logger(callback_logger),
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_log_msg(msg_level),
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_oss(),
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_enabled(enabled),
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_empty(true)
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{
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if(enabled)
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{
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_log_msg.msg_time = log_clock::now();
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callback_logger->_formatter->format_header(callback_logger->_logger_name,
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_log_msg.msg_level,
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_log_msg.msg_time,
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_oss);
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_log_msg.msg_header_size = _oss.size();
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}
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}
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// No copy intended. Only move
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line_logger(const line_logger& other) = delete;
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line_logger& operator=(const line_logger&) = delete;
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line_logger& operator=(line_logger&&) = delete;
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line_logger(line_logger&& other) :
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_callback_logger(other._callback_logger),
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_log_msg(other._log_msg),
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// The move ctor should only be called on start of logging line,
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// where no logging happened yet for this line so no need to copy the oss from the other
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_oss(),
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_enabled(other._enabled) {}
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~line_logger()
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{
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//only if enabled and not empty
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if (!_empty)
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{
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_oss << os::eol();
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_log_msg.msg_buf = _oss.buf();
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_callback_logger->_log_it(_log_msg);
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}
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}
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template<typename T>
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void write(const T& what)
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{
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if (_enabled)
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{
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_oss << what;
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_empty = false;
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}
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}
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template<typename T>
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line_logger& operator<<(const T& what)
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{
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write(what);
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return *this;
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}
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private:
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logger* _callback_logger;
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log_msg _log_msg;
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details::stack_oss _oss;
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bool _enabled;
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bool _empty;
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};
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} //Namespace details
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} // Namespace c11log
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