sdk-date(1)

Usage

kysdk-date

Overview

kysdk-date is a date and time format management service in the KYLIN SDK system. This service provides real-time date and time formatting capabilities, monitoring user configuration changes and broadcasting formatted date/time information through D-Bus signals.

The service runs as a background daemon that monitors changes to date format configuration files and automatically broadcasts updated date/time information to all subscribed applications. It supports multiple date formats and time display modes (12-hour/24-hour clock).

Features

Real-time Configuration Monitoring: Monitors user date format configuration file changes in real-time using inotify

Multiple Date Format Support: Supports various date formats including: - Short date formats (yy-M-d, MM/dd/yyyy, etc.) - Long date formats (yyyy MM dd, yy M d, etc.) - Custom formats with different separators (-, /, .)

Time Format Support: Supports both 12-hour and 24-hour clock formats

D-Bus Signal Broadcasting: Broadcasts date/time information through D-Bus signals when configurations change

Localization Support: Provides localized date format strings based on system locale settings

D-Bus INTERFACE

The service implements the following D-Bus interface `com.kylin.kysdk.DateInterface` with these signals:

DateSignal: Emitted when the date format configuration changes, providing: - Formatted date string - Time format information

LongDateSignal: Emitted for long date format changes, providing: - Long date format template - Formatted long date string

ShortDateSignal: Emitted for short date format changes, providing: - Short date format template - Formatted short date string

TimeSignal: Emitted for time format changes, providing: - Time format information (12-hour/24-hour clock)

Configuration

The service monitors the configuration file located at: ~/.config/kydate/dateformat.conf

Configuration options include:

`DATE_FORMAT`	General date format setting
`TIME_FORMAT`	Time format setting (12 or 24)
`LONG_DATE_FORMAT`	Specific format for long date display
`SHORT_DATE_FORMAT`	Specific format for short date display

Files

/usr/bin/sdk-date: Main executable file

~/.config/kydate/dateformat.conf: User configuration file for date/time formats

/var/log/kysdk-date.log: Log file (if logging is enabled)

Service

The service runs as a session D-Bus service with: - Service name: com.kylin.kysdk.DateServer - Object path: /com/kylin/kysdk/Date - Interface: com.kylin.kysdk.DateInterface

Dependencies

`D-Bus`	For inter-process communication
`GLib`	For main loop integration
`GNU gettext`	For localization support

Threading

The service uses a multi-threaded architecture: - Main thread: Handles D-Bus communication and main loop - Monitor thread: Watches for configuration file changes - Signal threads: Handle date/time formatting and broadcasting

Signals

`IN_CREATE, IN_DELETE, IN_MODIFY, IN_MOVE_SELF`	inotify events monitored for configuration file changes
`SIGTERM, SIGINT`	Graceful shutdown signals

Localization

Supports localization through GNU gettext with: - Language-specific date formats - Translated time format descriptions - Locale-aware date formatting