// Copyright 2014 Citra Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#pragma once
#include <algorithm>
#include <array>
#include "common/common_types.h"
#include "common/logging/formatter.h"
namespace Log {
// trims up to and including the last of ../, ..\, src/, src\ in a string
inline const char* TrimSourcePath(std::string_view source) {
const auto rfind = [source](const std::string_view match) {
return source.rfind(match) == source.npos ? 0 : (source.rfind(match) + match.size());
};
auto idx = std::max({rfind("src/"), rfind("src\\"), rfind("../"), rfind("..\\")});
return source.data() + idx;
}
/// Specifies the severity or level of detail of the log message.
enum class Level : u8 {
Trace, ///< Extremely detailed and repetitive debugging information that is likely to
///< pollute logs.
Debug, ///< Less detailed debugging information.
Info, ///< Status information from important points during execution.
Warning, ///< Minor or potential problems found during execution of a task.
Error, ///< Major problems found during execution of a task that prevent it from being
///< completed.
Critical, ///< Major problems during execution that threaten the stability of the entire
///< application.
Count ///< Total number of logging levels
};
typedef u8 ClassType;
/**
* Specifies the sub-system that generated the log message.
*
* @note If you add a new entry here, also add a corresponding one to `ALL_LOG_CLASSES` in
* backend.cpp.
*/
enum class Class : ClassType {
Log, ///< Messages about the log system itself
Common, ///< Library routines
Common_Filesystem, ///< Filesystem interface library
Common_Memory, ///< Memory mapping and management functions
Core, ///< LLE emulation core
Core_ARM11, ///< ARM11 CPU core
Core_Timing, ///< CoreTiming functions
Core_Cheats, ///< Cheat functions
Config, ///< Emulator configuration (including commandline)
Debug, ///< Debugging tools
Debug_Emulated, ///< Debug messages from the emulated programs
Debug_GPU, ///< GPU debugging tools
Debug_Breakpoint, ///< Logging breakpoints and watchpoints
Debug_GDBStub, ///< GDB Stub
Kernel, ///< The HLE implementation of the CTR kernel
Kernel_SVC, ///< Kernel system calls
Applet, ///< HLE implementation of system applets. Each applet
///< should have its own subclass.
Applet_SWKBD, ///< The Software Keyboard applet
Service, ///< HLE implementation of system services. Each major service
///< should have its own subclass.
Service_SRV, ///< The SRV (Service Directory) implementation
Service_FRD, ///< The FRD (Friends) service
Service_FS, ///< The FS (Filesystem) service implementation
Service_ERR, ///< The ERR (Error) port implementation
Service_APT, ///< The APT (Applets) service
Service_BOSS, ///< The BOSS (SpotPass) service
Service_GSP, ///< The GSP (GPU control) service
Service_AC, ///< The AC (WiFi status) service
Service_AM, ///< The AM (Application manager) service
Service_PTM, ///< The PTM (Power status & misc.) service
Service_LDR, ///< The LDR (3ds dll loader) service
Service_MIC, ///< The MIC (Microphone) service
Service_NDM, ///< The NDM (Network daemon manager) service
Service_NFC, ///< The NFC service
Service_NIM, ///< The NIM (Network interface manager) service
Service_NS, ///< The NS (Nintendo User Interface Shell) service
Service_NWM, ///< The NWM (Network wlan manager) service
Service_CAM, ///< The CAM (Camera) service
Service_CECD, ///< The CECD (StreetPass) service
Service_CFG, ///< The CFG (Configuration) service
Service_CSND, ///< The CSND (CWAV format process) service
Service_DSP, ///< The DSP (DSP control) service
Service_DLP, ///< The DLP (Download Play) service
Service_HID, ///< The HID (Human interface device) service
Service_HTTP, ///< The HTTP service
Service_SOC, ///< The SOC (Socket) service
Service_IR, ///< The IR service
Service_Y2R, ///< The Y2R (YUV to RGB conversion) service
Service_PS, ///< The PS (Process) service
HW, ///< Low-level hardware emulation
HW_Memory, ///< Memory-map and address translation
HW_LCD, ///< LCD register emulation
HW_GPU, ///< GPU control emulation
HW_AES, ///< AES engine emulation
Frontend, ///< Emulator UI
Render, ///< Emulator video output and hardware acceleration
Render_Software, ///< Software renderer backend
Render_OpenGL, ///< OpenGL backend
Audio, ///< Audio emulation
Audio_DSP, ///< The HLE and LLE implementations of the DSP
Audio_Sink, ///< Emulator audio output backend
Loader, ///< ROM loader
Input, ///< Input emulation
Network, ///< Network emulation
Movie, ///< Movie (Input Recording) Playback
WebService, ///< Interface to Citra Web Services
RPC_Server, ///< RPC server
Count ///< Total number of logging classes
};
/**
* Implements a log message filter which allows different log classes to have different minimum
* severity levels. The filter can be changed at runtime and can be parsed from a string to allow
* editing via the interface or loading from a configuration file.
*/
class Filter {
public:
/// Initializes the filter with all classes having `default_level` as the minimum level.
explicit Filter(Level default_level = Level::Info);
/// Resets the filter so that all classes have `level` as the minimum displayed level.
void ResetAll(Level level);
/// Sets the minimum level of `log_class` (and not of its subclasses) to `level`.
void SetClassLevel(Class log_class, Level level);
/**
* Parses a filter string and applies it to this filter.
*
* A filter string consists of a space-separated list of filter rules, each of the format
* `<class>:<level>`. `<class>` is a log class name, with subclasses separated using periods.
* `*` is allowed as a class name and will reset all filters to the specified level. `<level>`
* a severity level name which will be set as the minimum logging level of the matched classes.
* Rules are applied left to right, with each rule overriding previous ones in the sequence.
*
* A few examples of filter rules:
* - `*:Info` -- Resets the level of all classes to Info.
* - `Service:Info` -- Sets the level of Service to Info.
* - `Service.FS:Trace` -- Sets the level of the Service.FS class to Trace.
*/
void ParseFilterString(std::string_view filter_view);
/// Matches class/level combination against the filter, returning true if it passed.
bool CheckMessage(Class log_class, Level level) const;
private:
std::array<Level, static_cast<std::size_t>(Class::Count)> class_levels;
};
extern Filter filter;
void SetGlobalFilter(const Filter& f);
/// Logs a message to the global logger, using fmt
void FmtLogMessageImpl(Class log_class, Level log_level, const char* filename,
unsigned int line_num, const char* function, const char* format,
const fmt::format_args& args);
template <typename... Args>
void FmtLogMessage(Class log_class, Level log_level, const char* filename, unsigned int line_num,
const char* function, const char* format, const Args&... args) {
if (!filter.CheckMessage(log_class, log_level))
return;
FmtLogMessageImpl(log_class, log_level, filename, line_num, function, format,
fmt::make_format_args(args...));
}
} // namespace Log
// Define the fmt lib macros
#define LOG_GENERIC(log_class, log_level, ...) \
::Log::FmtLogMessage(log_class, log_level, ::Log::TrimSourcePath(__FILE__), __LINE__, \
__func__, __VA_ARGS__)
#ifdef _DEBUG
#define LOG_TRACE(log_class, ...) \
::Log::FmtLogMessage(::Log::Class::log_class, ::Log::Level::Trace, \
::Log::TrimSourcePath(__FILE__), __LINE__, __func__, __VA_ARGS__)
#else
#define LOG_TRACE(log_class, fmt, ...) (void(0))
#endif
#define LOG_DEBUG(log_class, ...) \
::Log::FmtLogMessage(::Log::Class::log_class, ::Log::Level::Debug, \
::Log::TrimSourcePath(__FILE__), __LINE__, __func__, __VA_ARGS__)
#define LOG_INFO(log_class, ...) \
::Log::FmtLogMessage(::Log::Class::log_class, ::Log::Level::Info, \
::Log::TrimSourcePath(__FILE__), __LINE__, __func__, __VA_ARGS__)
#define LOG_WARNING(log_class, ...) \
::Log::FmtLogMessage(::Log::Class::log_class, ::Log::Level::Warning, \
::Log::TrimSourcePath(__FILE__), __LINE__, __func__, __VA_ARGS__)
#define LOG_ERROR(log_class, ...) \
::Log::FmtLogMessage(::Log::Class::log_class, ::Log::Level::Error, \
::Log::TrimSourcePath(__FILE__), __LINE__, __func__, __VA_ARGS__)
#define LOG_CRITICAL(log_class, ...) \
::Log::FmtLogMessage(::Log::Class::log_class, ::Log::Level::Critical, \
::Log::TrimSourcePath(__FILE__), __LINE__, __func__, __VA_ARGS__)