lasersquad/LogEngine2: Простая, быстрая и функциональная C++ библиотека для логирования. Проста в освоении, платформо-независимая, header-only, малое количество кода, работает из коробки.

example/LogExample.lfg
101 строка4 KB
lasersquad0
Reapply "ClearLoggers renamed to ShutdownLoggers"
20 апр 2025, 13:10
20 апр 2025, 13:1090463f3
# each logger has its own section in config file.
# name of this section starts with predefined word 'logger' with dot '.' and name of logger after it.
# you can define in the file as many loggers as you need 
# logger and sink names are case insensitive in file. it means that 'MainLogger' and 'mainlogger' refer to one logger 
[logger.mainLogger]
loglevel = debug

# there are may be many 'sink' parameters in logger section.
# each sink parameter contains name of the sink defined further in [sink.xx] sections in this file. 
# during parsing all declared sinks will be added to the current logger.
# no limits on number of sinks (and sink types) to be added to the logger.
sink=s1
sink=s2
asyncmode=false

# this is logger with name 'second'
[logger.second]
LogLevel = warning
Sink=s3
Sink=s2
Sink=rotating
AsyncMode=true

# this section contains parameters of the sink
# s1 is sink will be added to MainLogger logger (see above)
[SINK.s1]

# there are 5 sink types: Stdout, Stderr, String, File, RotatingFile.
# they may contain different parameters. 
# for example FileName parameter is valid for File, RotatingFile only. 
Type=File

# This is file name for the sink. If file name contain spaces it needs to be in quotes?????
FileName = s1s1s1s1s1.log

# log level for the sink. This is second 'filter' for log messages. First such 'filter' is in Logger.
# with sink log level it is possble to send messages of different log levels into different files. 
loglevel = trace

# note that this sink is "connected" to two loggers above
[Sink.s2]
# this sink sends error log messages to standard output
Type=STDout
LOGLEVEL=error

[SINK.s3]
Type=File
FileName = s3 s3 s3 s3.log 
loglevel = trace

[sink.rotating]
Type=RotatingFile
FileName = RotatingLogfile.log
 
# Rotating strategy. can be one of the following values
#   None - no rotating. logs are written into specified log file without any rotating. In that case RotatingFile is fully equal to FileSink
#   Single - only one .bak file is created when log file reaches MaxLogfileSize. Old .bak file is deleted.
#   TimeStamp - .bak files are created with TimeStamp in the name. Unlimited number of such files can be created.
#   Numbers - when log file reaches MaxLogfileSize, log file is renamed to <logfilename>.1.bak, existing <logfilename>.1.bak is renamed to <logfilename>.2.bak and so on.
#   maximum number of numerated .bak files is MaxBackupIndex. Extra files are deleted.
Strategy = numbers

# Maximum log file size when new file will be started.
# Value can contain suffixes K, M, G that means kilobytes, megabytes and gigabytes
MaxLogfileSize = 6K

# Maximum number of "backup" files. Older files will be deleted
MaxBackupIndex = 5

#For any sink type it is possible to define error patterns for the message of each log level
# each pattern contains text with placeholders
# placeholders are replaced by actual values when sink writes log message
# full list of placeholders can be found below  
ErrorPattern = ! %TIME% #%THREAD% : %MSG%
WarnPattern  = # %TIME% #%THREAD% : %MSG%
CritPattern  = *!* %TIME% #%THREAD% : %MSG%

# this is pattern for all log message levels
# use it when you do not need separate pattern for each log level.
# any specific pattern defined above always overwrite PatternAll pattern
PatternAll = !WOW! %TIME% #%THREAD% : %MSG%


#---------------------------------------------------------------------------------
# Log message patterns. 
# Each pattern allows to set the format in which log information will be saved to the log file.
# Each pattern can be a combination of placeholders and free text. 
# Letters that are not placeholders will be copied to the output stream without changing.
# The example of template line : '%TIME% #%THREAD% : %MSG%'
# NOTE! MACROS ARE CASE SENSITIVE AND MUST BE IN UPEER CASE.
# List of supported placeholders:
#  %TIME% - current time
#  %DATE% - current date
#  %DATETIME% - the current date and time 
#  %THREAD% - ID of thread that generated this log message
#  %MSG% - log message itself
#  %LOGLEVEL% - log level for log message.
#  %APPNAME% - the name of application
#  %APPVERSION% - the version of application. Can have x.x.x.x format or other.
#  %OS% - OS name (for example Microsoft Windows 10)
#  %OSVERSION% - OS version number (for example "5.1.0.2666")