Introduction

RDK logger is a general purpose logging mechanism which is used for logging in RDK-B. Internally this uses log4c for formatting and supporting multiple log levels for different modules. The log level for each component is read from a configuration file debug.ini (rdkb_debug.ini) during component initialisation. Logger is implemented as a shared library and components need to link this library in order to  include logging functionality.

RDK logger is linked to RDK-B modules to enable component wise logging. When the unit boots-up, each RDK-B component will be initialised which in turn will initialise logger and start logging into the corresponding log file depending on the log level set for the component.

Architecture

Note: The RDK data model naming convention prefix was changed in March 2020 to “X_RDK_”. We request you use this new prefix going forward.

Architecture

1. All logs from modules (CcspTraceError, CcspTraceInfo, etc..) are routed to RDK logger library. RDK logger logs these into log files based on module wise LogLevels & LoggerEnable options.  RDK  logger uses log4c library internally to achieve the functionality.
   
   
2. CCSPLogAgent:

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Steps to add rdklogger to a new component:

Step 1:

Need to add LoggerEnable and LogLevel parameters in “LogAgent.xml” file for new component.

X_RDKCENTRAL-COM_New_LoggerEnable

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X_RDKCENTRAL-COM_New_LogLevel

Step 2:

Need to add the new parameters in  “system_defaults_arm”  file for persistent storage.           

$ X_RDKCENTRAL-COM_New_LogLevel=4

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$ X_RDKCENTRAL-COM_New_LoggerEnable=1

Code functionality for Loglevel & LoggerEnable parameters set/get in “cosa_apis_logagentplugin.c” file

Initialise rdklogger by calling  rdk_logger_init (/fss/gw/lib/debug.ini)  in the new component

Step 3:

Add new component entry in “rdkb_debug.ini” file

LOG.RDK.New = ALL FATAL ERROR WARNING NOTICE INFO DEBUG TRACE

Step 4:

Add the below configuration in “rdkb_log4src” file for new component

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For Doxygen documentation on the RDK Logger please refer: Doxygen RDK Logger