Allow logging to syslog, or any given ostream, or to nowhere. The
logging API is updated to accomodate these new logging destinations.
LogMessage is modified to allow this.
Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Currently the log file and the log level can only be set via environment
variables, but applications may also want to set the log file and the
log level at run time. Provide an API for this.
Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
enum LogSeverity values are assigned or compared to -1 to flag invalid
log severities. This generates compilation warnings with clang. Fix it
by adding an explicit LogInvalid entry to the enumeration.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Include the header file corresponding to the source file in the very
first position. This complies with the Google C++ coding style
guideliens, and helps ensuring that the headers are self-contained.
Three bugs are already caught by this change (missing includes or
forward declarations) in device_enumerator.h, event_dispatcher_poll.h
and pipeline_handler.h. Fix them.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
The methods don't modify the object instance, mark them as const. This
allows using the LOG() macro from a const method of a Loggable object.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Differing implementations of basename() exist, some of which may modify
the content of the string passed as an argument.
The implementation of basename() is trivial, thus to support different
C librariese, provide our own version which accepts and returns a const
char *.
Update the call sites to use the new implementation.
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Introduce a base Loggable class that can be inherited from by other
classes to support adding per-instance information to the log messages.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Two incorrect spellings are fixed.
'logr' -> 'log'
'environement' -> 'environment'
Fixes: 747ace042c ("libcamera: log: Get log levels from the environment")
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
The log levels configuration is stored in category:level pairs, not
category=value. Fix the documentation.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
If the LIBCAMERA_LOG_FILE environment variable is set, open the file it
points to and redirect the logger output to it.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Set the log level for each log category from the environment variable
LIBCAMERA_LOG_LEVELS.
The variable contains a comma-separated list of category:level pairs,
and category names can include wildcards.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Log categories are used to group log messages by topic. Introduce
support for categories by making the LOG() macro variadic. Support for
configuring log level per category will be introduced in a subsequent
commit.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Commit 99a3e7bcfb ("libcamera: log: Add a LogFatal log level")
expanded the text representation of the log levels to support the FATAL
string, but left the default unknown match at four characters.
This code should never expect to be executed, but for completeness match
the string lengths by adding an extra character to the result.
Fixes: 99a3e7bcfb ("libcamera: log: Add a LogFatal log level")
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Many of the message logged by the library will be debug messages, we
thus need a debug log level.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Fix Doxygen build warnings by adding the missing documentation for the
LogMessage class.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Now that the documentation can be compiled, Doxygen throws a few
warnings due to incorrect enum field naming. Fix it.
The \file block needs to be named after the header file in order for
Doxygen to document any global function, variable, typedef or enum
defined in the header (as documented in the Doxygen manual under the
\file command). We thus need to use log.h as the file name. No \file
block is needed for the .cpp file, as we don't want to generate
documentation for internal private globals.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
The logger is based on the ostream API, allowing code to log messages in
a native way. It automatically logs the time stamp, severity level, file
name and line number.
Many important features are missing, such as logging to file, logging
classes, and log filtering based on the severity level, file name and
class.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
