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Edit File: serialposix.cpython-39.pyc
a : iY�{ � @ s� d dl Z d dlZd dlZd dlZd dlZd dlZd dlZd dlZd dlm Z m Z m Z m Z m Z mZ G dd� de�Zd Zej�� Zedd� dkr�d dlZdZdZd Zd Zd Zd Zd ZdZ dZ dZ G dd� de�Z n�edkr�G dd� de�Z n�edd� dk�rd dlZdZ G dd� de�Z nzedd� dk�sbedd� d k�sbedd� d k�sbedd� d k�r�G d d � d e�Z!G d!d� de�Z nG d"d� de�Z e"ed#d$�Z#e"ed%d&�Z$e"ed'd(�Z%e"ed)d*�Z&e"ed+d�Z'e"ed,d�Z(e"ed-d.�Z)e"ed/d0�Z*e"ed1d2�Z+e"ed3d4�Z,e"ed5e*�Z-e"ed6e+�Z.e/ed7��r8ej0Z0n e"ed8d9�Z0e"ed:d;�Z1e�2d<d �Z3e�2d<e(�Z4e�2d<e'�Z5e"ed=d>�Z6e"ed?d@�Z7G dAdB� dBe e �Z8G dCdD� dDe8�Z9G dEdF� dFe8�Z:dS )G� N)� SerialBase�SerialException�to_bytes�portNotOpenError�writeTimeoutError�Timeoutc @ s e Zd Zi Zdd� Zdd� ZdS )�PlatformSpecificBasec C s t d��d S )Nz9non-standard baudrates are not supported on this platform��NotImplementedError)�self�baudrate� r �6/usr/lib/python3.9/site-packages/serial/serialposix.py�_set_special_baudrate. s z*PlatformSpecificBase._set_special_baudratec C s t d��d S )Nz$RS485 not supported on this platformr )r �rs485_settingsr r r �_set_rs485_mode1 s z$PlatformSpecificBase._set_rs485_modeN��__name__� __module__� __qualname__�BAUDRATE_CONSTANTSr r r r r r r + s r � Zlinuxi @l *TX i+T,@i i.T i/T � � � � c @ s` e Zd Zddddddddd d d d d ddddddddddddddd d d d d � Zd!d"� Zd#d$� Zd%S )&�PlatformSpecificr r r � r r � � � � � � � � � � i i � i � i � � � � � � � � � ) r �2 �K �n � � �� i, iX i� i i` i� i�% i K i � i � i � i � i � � � � � �@B � � �`� 逄 �%& ��- i�g5 i = c C s� t � ddgd �}zXt�| jt|� |d tj M < |d tO < | |d< |d< t�| jt|� W n4 t y� } z t d� ||���W Y d }~n d }~0 0 d S )N�ir �@ r r! r" z'Failed to set custom baud rate ({}): {}) �array�fcntl�ioctl�fd�TCGETS2�termiosZCBAUD�BOTHER�TCSETS2�IOError� ValueError�format)r r �buf�er r r r t s �&PlatformSpecific._set_special_baudratec C sH t � ddgd �}z�t�| jt|� |d tO < |d ur�|jrT|d tO < n|d t M < |jr~|d t O < n|d t M < |j r�|d t O < n|d t M < |j d ur�t |j d �|d< |jd ur�t |jd �|d< nd|d< t�| jt|� W n4 t�yB } ztd�|���W Y d }~n d }~0 0 d S )NrB r r �� r r z Failed to set RS485 mode: {})rD rE rF rG � TIOCGRS485�SER_RS485_ENABLEDZloopback�SER_RS485_RX_DURING_TXZrts_level_for_tx�SER_RS485_RTS_ON_SENDZrts_level_for_rx�SER_RS485_RTS_AFTER_SENDZdelay_before_tx�intZdelay_before_rx� TIOCSRS485rL rM rN )r r rO rP r r r r � s, z PlatformSpecific._set_rs485_modeNr r r r r r Q sD �"r �cygwinc @ s( e Zd Zddddddddd d d d � Zd S )r r( r) r* r+ r, r- r. r/ r0 r1 r2 ) i � i � r9 r: r; r< r= r> r? r@ rA N)r r r r r r r r r � s �r �darwinl T c @ s6 e Zd Ze�� d �d�Zeed �dkr2dd� ZdS )r r �.r r c C s$ t � d|g�}t�| jt|d� d S )NrB r )rD rE rF rG � IOSSIOSPEED)r r rO r r r r � s rQ N) r r r �os�uname�splitZ osx_versionrX r r r r r r � s r Zbsdr ZfreebsdZnetbsdZopenbsdc @ s e Zd Zdd� ZdS )�ReturnBaudratec C s |S )Nr )r �keyr r r � __getitem__� s zReturnBaudrate.__getitem__N)r r r rc r r r r ra � s ra c @ s e Zd Ze� ZdS �r N)r r r ra r r r r r r � s c @ s e Zd ZdS rd )r r r r r r r r � s �TIOCMGETiT �TIOCMBISiT �TIOCMBICiT �TIOCMSETiT � TIOCM_DTR� TIOCM_RTS� TIOCM_CTS� � TIOCM_CARrC � TIOCM_RNG� � TIOCM_DSR� �TIOCM_CD�TIOCM_RI�TIOCINQZFIONREADiT �TIOCOUTQiT �I�TIOCSBRKi'T �TIOCCBRKi(T c @ s� e Zd ZdZdd� Zd7dd�Zdd� Zed d � �Zd8d d �Z dd� Z dd� Z dd� Z dd� Z dd� Zdd� Zd9dd �Zd d � Zd d � Zd!d"� Zed#d$� �Zed%d&� �Zed'd(� �Zed)d*� �Zed+d,� �Zd-d.� Zd:d0d1�Zd;d2d3�Zd4d5� Z d6S )<�Serialz� Serial port class POSIX implementation. Serial port configuration is done with termios and fcntl. Runs on Linux and many other Un*x like systems. c C s� | j du rtd��| jr td��d| _z"t�| jtjtjB tj B �| _W n@ t y� } z(d| _t|j d� | j |���W Y d}~n d}~0 0 z| j dd� W n2 zt�| j� W n Y n0 d| _� Y n0 d| _z | js�| �� | js�| �� W n> t�y2 } z$|j t jt jfv �r n� W Y d}~n d}~0 0 | �� t�� \| _| _t�� \| _| _t � | jt j tj � t � | jt j tj � dS )zo Open port with current settings. This may throw a SerialException if the port cannot be opened.Nz.Port must be configured before it can be used.zPort is already open.zcould not open port {}: {}T)� force_update) �_portr �is_openrG r^ �openZportstr�O_RDWR�O_NOCTTY� O_NONBLOCK�OSError�errnorN �_reconfigure_port�closeZ_dsrdtr�_update_dtr_state�_rtscts�_update_rts_staterL �EINVALZENOTTY�reset_input_buffer�pipe�pipe_abort_read_r�pipe_abort_read_w�pipe_abort_write_r�pipe_abort_write_wrE �F_SETFL)r �msgrP r r r r} � sD ", z Serial.openFc C s� | j du rtd��| jdur�| jrzzt�| j tjtjB � W q� tyv } z"t|jd� | j |���W Y d}~q�d}~0 0 nt�| j tj � d}d }}| j dur�d}t | j d �}z"t�| j �}|\}}} } } } } W n6 tj�y } ztd� |���W Y d}~n d}~0 0 | tjtjB O } | tjtjB tjB tjB tjB tjB tjB M } dD ]"}tt|��rP| tt|� M } �qP|tj tj B tj B M }|tj tj B tj!B tj"B M }ttd ��r�|tj# M }ttd ��r�|tj$ M }zttd � | j%�� } } W n� t&�y� z| j'| j% } } W np t(�y� ttd � } } zt | j%�}W n$ t)�yh t)d � | j%���Y n 0 |dk �r�t)d � | j%���Y n0 Y n0 | tj* M } | j+dk�r�| tj,O } nX| j+dk�r�| tj-O } n@| j+dk�r�| tj.O } n(| j+dk�r�| tj/O } nt)d� | j+���| j0t1j2k�r(| tj3 M } nD| j0t1j4k�rB| tj3O } n*| j0t1j5k�r\| tj3O } nt)d� | j0���|tj6tj7B M }| j8t1j9k�r�| tj:tj;B t<B M } n�| j8t1j=k�r�| tj;t<B M } | tj:O } n�| j8t1j>k�r�| t< M } | tj:tj;B O } nj| j8t1j?k�r"t<�r"| tj:t<B tj;B O } n@| j8t1j@k�rRt<�rR| tj:t<B O } | tj; M } nt)d� | j8���ttd��r�| jA�r�|tjBtjCB O }n|tjBtjCB tjDB M }n,| jA�r�|tjBtjCB O }n|tjBtjCB M }ttd��r�| jE�r�| tjFO } n | tjF M } n,ttd��r(| jE�r | tjGO } n | tjG M } |dk �s<|dk�rJt)d� |���|| tjH< |dk �sh|dk�rvt)d� |���|| tjI< |�s�||| | | | | g|k�r�t�J| j tjK||| | | | | g� |du�r�| �L|� | jMdu�r�| �N| jM� dS )�,Set communication parameters on opened port.Nz+Can only operate on a valid file descriptorz&Could not exclusively lock port {}: {}r r r" � Could not configure port: {})ZECHOCTLZECHOKE�IUCLC�PARMRKzB{}ZB38400zInvalid baud rate: {!r}r r r r zInvalid char len: {!r}z$Invalid stop bit specification: {!r}zInvalid parity: {!r}�IXANY�CRTSCTS� CNEW_RTSCTS� zInvalid vmin: {!r}�Invalid vtime: {!r})OrG r Z _exclusiverE ZflockZLOCK_EXZLOCK_NBrL r� rN r{ ZLOCK_UN�_inter_byte_timeoutrX rI � tcgetattr�errorZCLOCALZCREADZICANONZECHOZECHOEZECHOKZECHONLZISIGZIEXTEN�hasattr�getattrZOPOSTZONLCRZOCRNLZINLCRZIGNCRZICRNLZIGNBRKr� r� Z _baudrate�AttributeErrorr �KeyErrorrM ZCSIZEZ _bytesizeZCS8ZCS7ZCS6ZCS5Z _stopbits�serialZ STOPBITS_ONEZCSTOPBZSTOPBITS_ONE_POINT_FIVEZ STOPBITS_TWOZINPCKZISTRIPZ_parityZ PARITY_NONEZPARENBZPARODD�CMSPARZ PARITY_EVENZ PARITY_ODDZ PARITY_MARKZ PARITY_SPACEZ_xonxoffZIXONZIXOFFr� r� r� r� �VMIN�VTIME� tcsetattr�TCSANOWr Z _rs485_moder )r rz r� Z custom_baud�vmin�vtime� orig_attr�iflag�oflag�cflag�lflag�ispeed�ospeed�cc�flagr r r r� - s� . $���� � zSerial._reconfigure_portc C st | j rp| jdurjt�| j� d| _t�| j� t�| j� t�| j� t�| j� d\| _| _d\| _| _d| _ dS )z Close portN)NNF)r| rG r^ r� r� r� r� r� �r r r r r� � s z Serial.closec C s t �| jtt�}t�d|�d S )z9Return the number of bytes currently in the input buffer.rv r )rE rF rG rt �TIOCM_zero_str�struct�unpack�r �sr r r � in_waiting� s zSerial.in_waitingr c C s` | j s t�t� }t| j�}t|�|k �rXzzt�| j| jgg g |� � �\}}}| j|v rjt � | jd� W �qX|stW �qXt � | j|t|� �}|s�t d��|� |� W n� ty� } z8|jtjtjtjtjtjfvr�t d�|���W Y d}~n`d}~0 tj�yH } z<|d tjtjtjtjtjfv�r4t d�|���W Y d}~n d}~0 0 |�� r�qXqt|�S )�� Read size bytes from the serial port. If a timeout is set it may return less characters as requested. With no timeout it will block until the requested number of bytes is read. rR zgdevice reports readiness to read but returned no data (device disconnected or multiple access on port?)zread failed: {}Nr )r| r � bytearrayr �_timeout�len�selectrG r� � time_leftr^ �readr �extendr� r� �EAGAIN�EALREADY� EWOULDBLOCK� EINPROGRESS�EINTRrN r� �expired�bytes)r �sizer� �timeout�ready�_rO rP r r r r� � s6 " � ""$z Serial.readc C s | j rt�| jd� d S �N� x)r| r^ �writer� r� r r r � cancel_read s zSerial.cancel_readc C s | j rt�| jd� d S r� )r| r^ r� r� r� r r r � cancel_write s zSerial.cancel_writec C s� | j s t�t|�}t|� }}t| j�}|dk�r�z�t�| j|�}|j rN|W S |j s�|� � r`t �t � | jg| jgg |�� �\}}} |r�t�| jd� W �q�|s�t �nR|�� du s�J �t � | jg| jgg d�\}}} |r�t�| jd� W �q�|s�td��||d� }||8 }W n� t�y" � Y n� t�yt } z:| jtjtjtjtjtjfv�r`td�| ���W Y d} ~ n`d} ~ 0 t j�y� } z<| d tjtjtjtjtjfv�r�td�| ���W Y d} ~ n d} ~ 0 0 |j s(|� � r(t �q(|t|� S )z2Output the given byte string over the serial port.r rR Nr zwrite failed (select)zwrite failed: {})r| r r r� r Z_write_timeoutr^ r� rG Zis_non_blockingZ is_infiniter� r r� r� r� r� r r� r� r� r� r� r� r� rN r� ) r �data�dZtx_len�lengthr� �n�abortr� r� rP r r r r� sN " ""$z Serial.writec C s | j s t�t�| j� dS )zb Flush of file like objects. In this case, wait until all data is written. N)r| r rI ZtcdrainrG r� r r r �flushF s z Serial.flushc C s | j s t�t�| jtj� dS )z9Clear input buffer, discarding all that is in the buffer.N)r| r rI �tcflushrG ZTCIFLUSHr� r r r r� O s zSerial.reset_input_bufferc C s | j s t�t�| jtj� dS )zs Clear output buffer, aborting the current output and discarding all that is in the buffer. N)r| r rI r� rG ZTCOFLUSHr� r r r �reset_output_bufferU s zSerial.reset_output_buffer� �?c C s$ | j s t�t�| jt|d �� dS )za Send break condition. Timed, returns to idle state after given duration. r� N)r| r rI Z tcsendbreakrG rX )r Zdurationr r r � send_break^ s zSerial.send_breakc C s( | j rt�| jt� nt�| jt� dS )zS Set break: Controls TXD. When active, no transmitting is possible. N)Z _break_staterE rF rG rw rx r� r r r �_update_break_stateg s zSerial._update_break_statec C s, | j rt�| jtt� nt�| jtt� dS )z)Set terminal status line: Request To SendN)Z _rts_staterE rF rG rf � TIOCM_RTS_strrg r� r r r r� p s zSerial._update_rts_statec C s, | j rt�| jtt� nt�| jtt� dS )z-Set terminal status line: Data Terminal ReadyN)Z _dtr_staterE rF rG rf � TIOCM_DTR_strrg r� r r r r� w s zSerial._update_dtr_statec C s2 | j s t�t�| jtt�}t�d|�d t @ dkS )z(Read terminal status line: Clear To Sendrv r ) r| r rE rF rG re r� r� r� rk r� r r r �cts~ s z Serial.ctsc C s2 | j s t�t�| jtt�}t�d|�d t @ dkS )z)Read terminal status line: Data Set Readyrv r ) r| r rE rF rG re r� r� r� rp r� r r r �dsr� s z Serial.dsrc C s2 | j s t�t�| jtt�}t�d|�d t @ dkS )z)Read terminal status line: Ring Indicatorrv r ) r| r rE rF rG re r� r� r� rs r� r r r �ri� s z Serial.ric C s2 | j s t�t�| jtt�}t�d|�d t @ dkS )z)Read terminal status line: Carrier Detectrv r ) r| r rE rF rG re r� r� r� rr r� r r r �cd� s z Serial.cdc C s t �| jtt�}t�d|�d S )z:Return the number of bytes currently in the output buffer.rv r )rE rF rG ru r� r� r� r� r r r � out_waiting� s zSerial.out_waitingc C s | j s t�| jS )z� For easier use of the serial port instance with select. WARNING: this function is not portable to different platforms! )r| r rG r� r r r �fileno� s z Serial.filenoTc C s4 | j s t�|r t�| jtj� nt�| jtj� dS )z� Manually control flow - when software flow control is enabled. This will send XON (true) or XOFF (false) to the other device. WARNING: this function is not portable to different platforms! N)r| r rI �tcflowrG ZTCIONZTCIOFF�r �enabler r r �set_input_flow_control� s z Serial.set_input_flow_controlc C s4 | j s t�|r t�| jtj� nt�| jtj� dS )z� Manually control flow of outgoing data - when hardware or software flow control is enabled. WARNING: this function is not portable to different platforms! N)r| r rI r� rG ZTCOONZTCOOFFr� r r r �set_output_flow_control� s z Serial.set_output_flow_controlc C s ddl }|�dt� dS )zDEPRECATED - has no user Nz0nonblocking() has no effect, already nonblocking)�warnings�warn�DeprecationWarning)r r� r r r � nonblocking� s zSerial.nonblockingN)F)r )r� )T)T) r r r �__doc__r} r� r� �propertyr� r� r� r� r� r� r� r� r� r� r� r� r� r� r� r� r� r� r� r� r� r r r r ry � s@ / 16 ry c @ s e Zd ZdZddd�ZdS )�PosixPollSerialz� Poll based read implementation. Not all systems support poll properly. However this one has better handling of errors, such as a device disconnecting while it's in use (e.g. USB-serial unplugged). r c C s� | j s t�t� }t�� }|�| jtjtjB tj B tj B � |dkr�t |�|k r�|�| j d �D ]&\}}|tjtj B tj B @ r^t d��q^t�| j|t |� �}|�|� | j dur�| j dks�| jdurB| jdkrB|sBq�qBt|�S )r� r rR zdevice reports error (poll)N)r| r r� r� �poll�registerrG ZPOLLINZPOLLERRZPOLLHUPZPOLLNVALr� r� r r^ r� r� r� r� )r r� r� r� rG ZeventrO r r r r� � s* " ���zPosixPollSerial.readN)r )r r r r� r� r r r r r� � s r� c s2 e Zd ZdZd� fdd� Zd dd�Ze� Z� ZS ) � VTIMESeriala Implement timeout using vtime of tty device instead of using select. This means that no inter character timeout can be specified and that the error handling is degraded. Overall timeout is disabled when inter-character timeout is used. Tc s t t| ��� t�| jtjd� | jdur>d}t| jd �}n&| jdu rRd}d}nd}t| jd �}z"t � | j�}|\}}}}} } } W n6 t j y� } z t � d�| ���W Y d} ~ n d} ~ 0 0 |dk s�|dkr�td�|���|| t j< || t j< t �| jt j||||| | | g� dS )r� r Nr r" r� r� r� )�superr� r� rE rG r� r� rX r� rI r� r� r� r rN rM r� r� r� r� ) r rz r� r� r� r� r� r� r� r� r� r� r� �� __class__r r r� � s0 & �z VTIMESerial._reconfigure_portr c C sL | j s t�t� }t|�|k rDt�| j|t|� �}|s8qD|�|� qt|�S )r� ) r| r r� r� r^ r� rG r� r� )r r� r� rO r r r r� s zVTIMESerial.read)T)r ) r r r r� r� r� r� r� � __classcell__r r r� r r� � s r� );r� rE r^ r� r� �sysrI r� Zserial.serialutilr r r r r r �objectr r� �platform�lowerZplatrD rH rK rJ rS rY rT rV rW rU r r] ra r� re rf rg rh ri rj rk rm rn rp rr rs r� rt ru �packr� r� r� rw rx ry r� r� r r r r �<module> s� P ��� \#