33  * The interface is used to write messages/log entries to the system journal.
47      * Gets the journal messages that have the specified field set to the
50      * The messages in the returned vector are ordered from oldest to newest.
54      * @param max Maximum number of messages to return.  Specify 0 to return all
55      *            matching messages.
56      * @return matching messages from the journal
70      * Logs debug messages in the system journal.
72      * @param messages messages to log
74     virtual void logDebug(const std::vector<std::string>& messages) = 0;
84      * Logs error messages in the system journal.
86      * @param messages messages to log
88     virtual void logError(const std::vector<std::string>& messages) = 0;
98      * Logs informational messages in the system journal.
100      * @param messages messages to log
102     virtual void logInfo(const std::vector<std::string>& messages) = 0;
134     virtual void logDebug(const std::vector<std::string>& messages) override  in logDebug()  argument
136         for (const std::string& message : messages)  in logDebug()
150     virtual void logError(const std::vector<std::string>& messages) override  in logError()  argument
152         for (const std::string& message : messages)  in logError()
166     virtual void logInfo(const std::vector<std::string>& messages) override  in logInfo()  argument
168         for (const std::string& message : messages)  in logInfo()