Base class to support log message extensions. More...
Protected Member Functions | |
| virtual std::string | logPrefix () const =0 |
| Retrieve a string to be prefixed to the log message. More... | |
| LogMessage | _log (const LogCategory *category, LogSeverity severity, const char *fileName=__builtin_FILE(), unsigned int line=__builtin_LINE()) const |
| Create a temporary LogMessage object to log a message. More... | |
Detailed Description
Base class to support log message extensions.
The Loggable class allows classes to extend log messages without any change to the way the LOG() macro is invoked. By inheriting from Loggable and implementing the logPrefix() virtual function, a class can specify extra information to be automatically added to messages logged from class member function.
Member Function Documentation
◆ _log()
|
protected |
Create a temporary LogMessage object to log a message.
- Parameters
-
[in] category The log message category [in] severity The log message severity [in] fileName The file name where the message is logged from [in] line The line number where the message is logged from
This function is used as a backend by the LOG() macro to create a log message for locations inheriting from the Loggable class.
- Returns
- A log message
◆ logPrefix()
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protectedpure virtual |
Retrieve a string to be prefixed to the log message.
This function allows classes inheriting from the Loggable class to extend the logger with an object-specific prefix output right before the log message contents.
- Returns
- A string to be prefixed to the log message
Implemented in libcamera::V4L2VideoDevice, libcamera::V4L2Subdevice, libcamera::ipa::ipu3::IPAIPU3, libcamera::MediaDevice, libcamera::IPAModule, and libcamera::CameraLens.
The documentation for this class was generated from the following files:
- include/libcamera/base/log.h
- src/libcamera/base/log.cpp
