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Editing: reduction.cpython-38.pyc
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(target_process is a handle not a pid!)Nr )�_winapi�GetCurrentProcess�DuplicateHandle�DUPLICATE_SAME_ACCESS)�handleZtarget_processZ inheritabler2 Zcurrent_processr r r r0 G s �c C sF t �t jd| �}z$t �||t �� ddt jt jB �W �S t �|� X dS )z5Steal a handle from process identified by source_pid.Fr N)r3 � OpenProcess�PROCESS_DUP_HANDLE� CloseHandler5 r4 r6 �DUPLICATE_CLOSE_SOURCE)Z source_pidr7 Zsource_process_handler r r r1 S s � �c C s t |tj|�}| �|� dS �z&Send a handle over a local connection.N)r/ r3 r6 �send)�connr7 �destination_pidZdhr r r r _ s c C s | � � �� S )�)Receive a handle over a local connection.)�recv�detach)r> r r r r d s c @ s" e Zd ZdZddd�Zdd� ZdS )r/ z Picklable wrapper for a handle.Nc C s\ |d krt �� }t�tjd|�}z t�t�� |||dd�| _W 5 t�|� X || _ || _ d S )NFr ) �os�getpidr3 r8 r9 r: r5 r4 �_handle�_access�_pid)r r7 �access�pid�procr r r r j s � zDupHandle.__init__c C sZ | j t�� kr| jS t�tjd| j �}z"t�|| jt� � | j dtj �W �S t�|� X dS )z1Get the handle. This should only be called once.FN) rG rC rD rE r3 r8 r9 r: r5 r4 rF r; )r rJ r r r rB y s � �zDupHandle.detach)N)r% r& r' r( r rB r r r r r/ h s �DupFd�sendfds�recvfds�darwinc C sV t � d|�}tt|�d g�}| �|gtjtj|fg� trR| �d�dkrRt d��dS )z,Send an array of fds over an AF_UNIX socket.�i� r � Az%did not receive acknowledgement of fdN) �array�bytes�lenr �socket� SOL_SOCKETr � ACKNOWLEDGErA � RuntimeError)�sockZfds�msgr r r rL � s c C s t � d�}|j| }| �dt�|��\}}}}|s:|s:t�z�trJ| �d� t|�dkrft dt|� ��|d \}} } |tj kr�| tj kr�t| �|j dkr�t �|� | � t|�d |d kr�td�t|�|d ���t|�W S W n t tfk r� Y nX t d��d S ) z/Receive an array of fds over an AF_UNIX socket.rO r rQ z received %d items of ancdatar rP z Len is {0:n} but msg[0] is {1!r}zInvalid data receivedN)rR �itemsizeZrecvmsgrU Z CMSG_SPACE�EOFErrorrW r= rT rX rV r � ValueErrorZ frombytes�AssertionError�format�list� IndexError) rY �size�aZ bytes_sizerZ Zancdata�flagsZaddrZ cmsg_levelZ cmsg_typeZ cmsg_datar r r rM � s< � � ��c C s2 t �| �� t jt j��}t||g� W 5 Q R X dS r< )rU �fromfd�fileno�AF_UNIX� SOCK_STREAMrL )r> r7 r? �sr r r r � s c C s< t �| �� t jt j�� }t|d�d W 5 Q R � S Q R X dS )r@ r r N)rU re rf rg rh rM )r> ri r r r r � s c C sF t �� }|dk r |�|�| ��S tr:ddlm} |�| �S td��dS )zReturn a wrapper for an fd.Nr )�resource_sharerz&SCM_RIGHTS appears not to be available)r Zget_spawning_popenrK Zduplicate_for_child�HAVE_SEND_HANDLE� rj r] )�fdZ popen_objrj r r r rK � s c C s2 | j d kr t| j| jjffS t| j | jjffS d S r )�__self__�getattrr �__func__r% ��mr r r �_reduce_method� s rs c @ s e Zd Zdd� ZdS )�_Cc C s d S r r )r r r r �f� s z_C.fN)r% r& r' ru r r r r rt � s rt c C s t | j| jffS r )ro � __objclass__r% rq r r r �_reduce_method_descriptor� s rw c C s t | j| j| jpi ffS r )�_rebuild_partial�funcr �keywords)�pr r r �_reduce_partial� s r| c C s t j| f|�|�S r )� functools�partial)ry r rz r r r rx � s rx c C s ddl m} t|| �ffS )Nr )� DupSocket)rj r �_rebuild_socket)ri r r r r �_reduce_socket� s r� c C s | � � S r )rB )Zdsr r r r� � s r� c C s" t | �� �}t|| j| j| jffS r )rK rf r� �familyr �proto)ri �dfr r r r� � s c C s | � � }tj||||d�S )N)rf )rB rU )r� r� r r� rm r r r r� � s c @ sd e Zd ZdZeZeZeZeZeZe j dkr8e Z e Z e Z n eZeZeZeZeZeZeZeZdd� ZdS )�AbstractReducerz�Abstract base class for use in implementing a Reduction class suitable for use in replacing the standard reduction mechanism used in multiprocessing.r c G sN t tt� j�t� t ttj�t� t ttj �t� t t j t � t t j t� d S r )r r rt ru rs r` �appendrw �int�__add__r} r~ r| rU r� r r r r r s zAbstractReducer.__init__N)r% r& r' r( r r r r r �sys�platformr1 r0 r/ rL rM rK rs rw rx r� r� r r r r r r� � s& r� )� metaclass)N)NF).�abcr r) r} r rC r+ rU r� rl r �__all__r� �hasattrrk ZPicklerr r r r3 r0 r1 r r �objectr/ rR rW rL rM rK rs rt r ru rw r` r� r� r� r| rx r~ r� r� r� r r r r �<module> sj � � � #
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