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由 Peter Krempa 提交于
Some systems may not use DBus in their system. Add a method to check if the system bus is available that doesn't print error messages so that code can later check for this condition and use an alternative approach.
2398dd3d
Some systems may not use DBus in their system. Add a method to check if the system bus is available that doesn't print error messages so that code can later check for this condition and use an alternative approach.