File: //opt/alt/python37/lib/python3.7/site-packages/paste/util/__pycache__/threadedprint.cpython-37.pyc
B
b�N � @ s� d Z ddlZddlZddlmZ G dd� dej�Zdadadd� Z dd � Z
d
d � Z e a a
G d d
� d
ej�Zdadadd� Zdd � Z
dd� ZdS )a�
threadedprint.py
================
:author: Ian Bicking
:date: 12 Jul 2004
Multi-threaded printing; allows the output produced via print to be
separated according to the thread.
To use this, you must install the catcher, like::
threadedprint.install()
The installation optionally takes one of three parameters:
default
The default destination for print statements (e.g., ``sys.stdout``).
factory
A function that will produce the stream for a thread, given the
thread's name.
paramwriter
Instead of writing to a file-like stream, this function will be
called like ``paramwriter(thread_name, text)`` for every write.
The thread name is the value returned by
``threading.currentThread().getName()``, a string (typically something
like Thread-N).
You can also submit file-like objects for specific threads, which will
override any of these parameters. To do this, call ``register(stream,
[threadName])``. ``threadName`` is optional, and if not provided the
stream will be registered for the current thread.
If no specific stream is registered for a thread, and no default has
been provided, then an error will occur when anything is written to
``sys.stdout`` (or printed).
Note: the stream's ``write`` method will be called in the thread the
text came from, so you should consider thread safety, especially if
multiple threads share the same writer.
Note: if you want access to the original standard out, use
``sys.__stdout__``.
You may also uninstall this, via::
threadedprint.uninstall()
TODO
----
* Something with ``sys.stderr``.
* Some default handlers. Maybe something that hooks into `logging`.
* Possibly cache the results of ``factory`` calls. This would be a
semantic change.
� N)� filemixinc @ st e Zd Zddd�Zejfdd�Zdd� Zd d
� Zd d � Z d
d� Z
dd� Z dd� Z dejfdd�Z
dejfdd�ZdS )� PrintCatcherNFc C s� t tdd� |||g��dks$td��|r>|r8td| ��tj}|rL| j| _n$|rZ| j| _n|rh| j| _n| j | _|| _
|| _ || _ i | _
d S )Nc S s | d k S )N� )�xr r �I/opt/alt/python37/lib/python3.7/site-packages/paste/util/threadedprint.py�<lambda>G � z'PrintCatcher.__init__.<locals>.<lambda>� z<You can only provide one of default, factory, or paramwriterz:You cannot pass in both default (%r) and leave_stdout=True)�len�filter�AssertionError�sys�stdout�
_writedefault� _defaultfunc�
_writefactory� _writeparam� _writeerror�_default�_factory� _paramwriter� _catchers)�self�default�factory� paramwriterZ leave_stdoutr r r �__init__E s&
zPrintCatcher.__init__c C s> |� � � }| j}|�|�s(| �||� n|| }|�|� d S )N)�getNamer �has_keyr �write)r �v�
currentThread�name�catchers�catcherr r r r \ s
zPrintCatcher.writec G s: t �� �� }| j}||kr(| jj|� n|| j|� d S )N)� threadingr! r r r �seek)r �argsr" r# r r r r& e s
zPrintCatcher.seekc G s: t �� �� }| j}||kr(| jj|� n|| j|� d S )N)r% r! r r r �read)r r' r" r# r r r r( n s
zPrintCatcher.readc C s | j �|� d S )N)r r )r r" r r r r r w s zPrintCatcher._writedefaultc C s | � |��|� d S )N)r r )r r" r r r r r z s zPrintCatcher._writefactoryc C s | � ||� d S )N)r )r r" r r r r r } s zPrintCatcher._writeparamc C s dst d| ��d S )NFz8There is no PrintCatcher output stream for the thread %r)r )r r" r r r r r � s zPrintCatcher._writeerrorc C s |d kr|� � � }|| j|< d S )N)r r )r r$ r" r! r r r �register� s
zPrintCatcher.registerc C s6 |d kr|� � � }| j�|�s*td| ��| j|= d S )Nz2There is no PrintCatcher catcher for the thread %r)r r r r )r r" r! r r r �
deregister� s
zPrintCatcher.deregister)NNNF)�__name__�
__module__� __qualname__r r% r! r r& r( r r r r r) r* r r r r r C s
r c K s4 t rtjt k r0tjatf | � a t_t jat jad S )N)�
_printcatcherr
r �
_oldstdoutr r) r* )�kwr r r �install� s
r1 c C s t rtt_d a atatad S )N)r. r/ r
r �not_installed_errorr) r* r r r r � uninstall� s
r3 c O s ds t d��d S )NFzGthreadedprint has not yet been installed (call threadedprint.install()))r )r' r0 r r r r2 � s r2 c @ sf e Zd Zddd�Zdejfdd�Zdd� Zdd � Zd
d � Z d d
� Z
dejfdd�Z dejfdd�Z dS )� StdinCatcherNc C sr t tdd� |||g��dks$td��|r2| j| _n$|r@| j| _n|rN| j| _n| j| _|| _|| _ || _
i | _ d S )Nc S s | d k S )Nr )r r r r r � r z'StdinCatcher.__init__.<locals>.<lambda>r z<You can only provide one of default, factory, or paramwriter) r
r r � _readdefaultr � _readfactory�
_readparam�
_readerrorr r r r )r r r r r r r r � s
zStdinCatcher.__init__c C s< |� � � }| j}|�|�s&| �||�S || }|�|�S d S )N)r r r r r( )r �sizer! r" r# r$ r r r r( � s
zStdinCatcher.readc C s | j �|� d S )N)r r( )r r" r9 r r r r5 � s zStdinCatcher._readdefaultc C s | � |��|� d S )N)r r( )r r" r9 r r r r6 � s zStdinCatcher._readfactoryc C s | � ||� d S )N)Z _paramreader)r r" r9 r r r r7 � s zStdinCatcher._readparamc C s dst d| ��d S )NFz8There is no StdinCatcher output stream for the thread %r)r )r r" r9 r r r r8 � s zStdinCatcher._readerrorc C s |d kr|� � � }|| j|< d S )N)r r )r r$ r" r! r r r r) � s
zStdinCatcher.registerc C s6 |d kr|� � � }| j�|�s*td| ��| j|= d S )Nz2There is no StdinCatcher catcher for the thread %r)r r r r )r r$ r" r! r r r r* � s
zStdinCatcher.deregister)NNN)
r+ r, r- r r% r! r( r5 r6 r7 r8 r) r* r r r r r4 � s
r4 c K s* t s&tjatf | � a t_t jat jad S )N) �
_stdincatcherr
�stdin� _oldstdinr4 r) �register_stdinr* �deregister_stdin)r0 r r r �
install_stdin� s
r? c C s t r| t_d a } t aad S )N)r: r
r; �not_installed_error_stdinr= r> )r< r r r r3 � s c O s ds t d��d S )NFzWthreadedprint has not yet been installed for stdin (call threadedprint.install_stdin()))r )r' r0 r r r r@ � s r@ )�__doc__r% r
Z
paste.utilr Z FileMixinr r. r/ r1 r3 r2 r) r* r4 r: r< r? r@ r r r r �<module>= s P8