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N�property� parameterc C sF d | _ t�d�dg| _|r| j�|� | j�d|dg� | �� | _d S )N� systemctl�showz-pz--timestamp=us+utc)�stdoutr �which�args�append�extend�_subpr )�selfrM rN r r r& �__init__� s zSystemctlReader.__init__r c C sT zt j | jdd�\}}|r|W S || _W dS ty) } z|W Y d}~S d}~ww )z� Make a subp call based on set args and handle errors by setting failure code :return: whether the subp call failed or not T��captureN)r rS rQ � Exception)rW �value�err�systemctl_failr r r& rV � s ��zSystemctlReader._subpc C sv | j r td�| j ���| jdu rtd��| j�d�d �� }|�� r*t|�d }|S tj� |d�j tj j d�� � }|S ) z{ If subp call succeeded, return the timestamp from subp as a float. :return: timestamp as a float zBSubprocess call to systemctl has failed, returning error code ({})Nz.stdout of subprocess call to systemctl is None�=rE i@B z%a %Y-%m-%d %H:%M:%S.%f %Z)�tzinfo)r � RuntimeErrorr# rQ r/ �strip� isnumericr2 r6 �strptimer" r8 r9 r )rW �valr r r r& �convert_val_to_float� s& � � ���z$SystemctlReader.convert_val_to_floatr5 ) �__name__� __module__� __qualname__�__doc__�strr rX r r[ rV r2 rf r r r r& rL � s rL c C s2 t � rt� S t�� sdt�� d �� v rt� S tS )a) Determine which init system a particular linux distro is using. Each init system (systemd, etc) has a different way of providing timestamps. :return: timestamps of kernelboot, kernelendboot, and cloud-initstart or TIMESTAMP_UNKNOWN if the timestamps cannot be retrieved. �gentoo�system)r � gather_timestamps_using_systemdr � is_FreeBSD� system_info�lower� gather_timestamps_using_dmesg�TIMESTAMP_UNKNOWNr r r r& �dist_check_timestamp� s rt c C s� zMt j dgdd�\} }| d �� }|D ]7}|�d��d�dkrJ|�d��� }|d �d �}t|�}tt�� �tt� � � }|| }t |||f W S qW t S t yW Y t S w ) a Gather timestamps that corresponds to kernel begin initialization, kernel finish initialization using dmesg as opposed to systemctl :return: the two timestamps plus a dummy timestamp to keep consistency with gather_timestamps_using_systemd �dmesgTrY r zUTF-8�userr rE �]) r � splitlines�decode�findr/ rb r2 �timer �uptime� SUCCESS_CODEr[ rs ) �data�_� split_entriesr$ �splitup�stripped�user_space_timestamp� kernel_start� kernel_endr r r& rr � s$ �� ��rr c C s� z0t �� rtd��� } td��� }n td��� } td��� }td��� | }tdd��� | }W n tyH } z t|� tW Y d}~S d}~ww t �� rOtnt}|| | | | | fS )z� Gather timestamps that corresponds to kernel begin initialization, kernel finish initialization. and cloud-init systemd unit activation :return: the three timesread_propertystamps �UserspaceTimestamp�UserspaceTimestampMonotonic�KernelTimestamp�KernelTimestampMonotonic� InactiveExitTimestampMonotoniczcloud-init-localN) r � is_containerrL rf r[ �printrs �CONTAINER_CODEr} )r� �monotonic_offsetr� �cloudinit_sysd�e�statusr r r& rn s^ �����������������rn �(%n) %d seconds in %I%D�events� print_formatc C s� t | dd� d�}g }d}d}i }g }g }tt|��D ]�} | | } z| | d } W n ty3 d} Y nw t| �dkr�|rU| �d�d krU|�t|�� |�|� g }d}d}|du rct| �}||t | �< t | �t | �kr�t| �d kr�t t | �} |�t |t|| | ��� q|�d | �d� � |�| � q|�� } t | �t | �kr�|r�t|| | �} |�t d | �d � || �d�p�d7 }q|�| � q|�t|�� |�|� |S )as Take in raw events and create parent-child dependencies between events in order to order events in chronological order. :param events: JSONs from dump that represents events taken from logs :param print_format: formatting to represent event, time stamp, and time taken by the event in one line :return: boot records ordered chronologically c S s | d S )Nr r )�xr r r& �<lambda>W s z"generate_records.<locals>.<lambda>)�keyNg rE r? r z init-localr@ zStarting stage: %sz Finished stage: (%n) %d seconds� r )�sorted�range�len� IndexErrorr r* rT rK r: r0 r, r r r' rJ �pop)r� r� � sorted_events�recordsrB r �stage_start_time� boot_records� unprocessedr� r �next_evt�prev_evtrI r r r& �generate_recordsH sl � ��� ���� r� c C s t | |d�S )a< A passthrough method that makes it easier to call generate_records() :param events: JSONs from dump that represents events taken from logs :param print_format: formatting to represent event, time stamp, and time taken by the event in one line :return: boot records ordered chronologically )r� )r� )r� r� r r r& � show_events� s r� �infilec C sX | � � }|�� stj�d| j � t�d� zt�|�|fW S t y+ d|f Y S w )z� Takes in a log file, read it, and convert to json. :param infile: The Log file to be read :return: json version of logfile, raw file zEmpty file %s rE N) �readrb �sys�stderr�writer �exit�json�loadsr1 )r� r~ r r r& �load_events_infile� s �r� )r� )+r6 r� r� r{ �typingr r r r r r r r � cloudinitr r �cloudinit.distrosr r r} � FAIL_CODEr� rs �Eventrk r' r, r r0 r2 r4 r: r> rA rJ rK rL rt rr rn r� r� r� r r r r& �<module> sp ( � ��� �U ;��� �"P"
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