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124 lines
2.9 KiB
C++
124 lines
2.9 KiB
C++
#pragma once
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#include "types.h"
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#include "Atomic.h"
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#include "StrFmt.h"
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#include <climits>
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namespace logs
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{
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enum class level : uint
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{
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always, // Highest log severity (unused, cannot be disabled)
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fatal,
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error,
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todo,
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success,
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warning,
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notice,
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trace, // Lowest severity (usually disabled)
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_uninit = UINT_MAX, // Special value for delayed initialization
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};
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struct channel;
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// Message information
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struct message
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{
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channel* ch;
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level sev;
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private:
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// Send log message to global logger instance
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void broadcast(const char*, const fmt_type_info*, ...) const;
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friend struct channel;
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};
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class listener
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{
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// Next listener (linked list)
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atomic_t<listener*> m_next{};
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friend struct message;
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public:
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constexpr listener() = default;
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virtual ~listener();
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// Process log message
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virtual void log(u64 stamp, const message& msg, const std::string& prefix, const std::string& text) = 0;
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// Add new listener
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static void add(listener*);
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};
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struct channel
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{
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// Channel prefix (added to every log message)
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const char* const name;
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// The lowest logging level enabled for this channel (used for early filtering)
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atomic_t<level> enabled;
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// Constant initialization: channel name
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constexpr channel(const char* name)
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: name(name)
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, enabled(level::_uninit)
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{
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}
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#define GEN_LOG_METHOD(_sev)\
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const message msg_##_sev{this, level::_sev};\
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template <typename... Args>\
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void _sev(const char* fmt, const Args&... args)\
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{\
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if (UNLIKELY(level::_sev <= enabled))\
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{\
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static constexpr fmt_type_info type_list[sizeof...(Args) + 1]{fmt_type_info::make<fmt_unveil_t<Args>>()...};\
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msg_##_sev.broadcast(fmt, type_list, u64{fmt_unveil<Args>::get(args)}...);\
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}\
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}
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GEN_LOG_METHOD(fatal)
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GEN_LOG_METHOD(error)
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GEN_LOG_METHOD(todo)
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GEN_LOG_METHOD(success)
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GEN_LOG_METHOD(warning)
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GEN_LOG_METHOD(notice)
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GEN_LOG_METHOD(trace)
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#undef GEN_LOG_METHOD
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};
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/* Small set of predefined channels */
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extern channel GENERAL;
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extern channel LOADER;
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extern channel MEMORY;
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extern channel RSX;
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extern channel HLE;
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extern channel PPU;
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extern channel SPU;
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// Log level control: set all channels to level::notice
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void reset();
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// Log level control: register channel if necessary, set channel level
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void set_level(const std::string&, level);
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}
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#define LOG_CHANNEL(ch, ...) ::logs::channel ch(#ch, ##__VA_ARGS__);
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// Legacy:
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#define LOG_SUCCESS(ch, fmt, ...) logs::ch.success("" fmt, ##__VA_ARGS__)
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#define LOG_NOTICE(ch, fmt, ...) logs::ch.notice ("" fmt, ##__VA_ARGS__)
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#define LOG_WARNING(ch, fmt, ...) logs::ch.warning("" fmt, ##__VA_ARGS__)
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#define LOG_ERROR(ch, fmt, ...) logs::ch.error ("" fmt, ##__VA_ARGS__)
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#define LOG_TODO(ch, fmt, ...) logs::ch.todo ("" fmt, ##__VA_ARGS__)
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#define LOG_TRACE(ch, fmt, ...) logs::ch.trace ("" fmt, ##__VA_ARGS__)
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#define LOG_FATAL(ch, fmt, ...) logs::ch.fatal ("" fmt, ##__VA_ARGS__)
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