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G ddοΏ½ de οΏ½Z da
daddοΏ½ ZdS )a/ Drop-in replacement for the thread module.
Meant to be used as a brain-dead substitute so that threaded code does
not need to be rewritten for when the thread module is not present.
Suggested usage is::
try:
import _thread
except ImportError:
import _dummy_thread as _thread
οΏ½errorοΏ½start_new_threadοΏ½exitοΏ½ get_identοΏ½
allocate_lockοΏ½interrupt_mainοΏ½LockTypeοΏ½ οΏ½ c C sοΏ½ t |οΏ½t tοΏ½ οΏ½krtdοΏ½οΏ½t |οΏ½t tοΏ½ οΏ½kr4tdοΏ½οΏ½day| ||οΏ½ W n. tk
rZ Y n ddl}|jοΏ½ Y nX datrοΏ½dat οΏ½dS )aοΏ½ Dummy implementation of _thread.start_new_thread().
Compatibility is maintained by making sure that ``args`` is a
tuple and ``kwargs`` is a dictionary. If an exception is raised
and it is SystemExit (which can be done by _thread.exit()) it is
caught and nothing is done; all other exceptions are printed out
by using traceback.print_exc().
If the executed function calls interrupt_main the KeyboardInterrupt will be
raised when the function returns.
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οΏ½typeοΏ½tupleοΏ½ TypeErrorοΏ½dictοΏ½_mainοΏ½
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c C s t οΏ½dS )z'Dummy implementation of _thread.exit().N)r r r r r r = s c C s dS )zοΏ½Dummy implementation of _thread.get_ident().
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available, it is safe to assume that the current process is the
only thread. Thus a constant can be safely returned.
οΏ½ οΏ½οΏ½οΏ½r r r r r r A s c C s t οΏ½ S )z0Dummy implementation of _thread.allocate_lock().)r r r r r r J s Nc C s | dk rt dοΏ½οΏ½dS )z-Dummy implementation of _thread.stack_size().Nz'setting thread stack size not supportedr
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dS )r aοΏ½ Class implementing dummy implementation of _thread.LockType.
Compatibility is maintained by maintaining self.locked_status
which is a boolean that stores the state of the lock. Pickling of
the lock, though, should not be done since if the _thread module is
then used with an unpickled ``lock()`` from here problems could
occur from this class not having atomic methods.
c C s
d| _ d S )NF)οΏ½
locked_status)οΏ½selfr r r οΏ½__init__c s zLockType.__init__Nr c C sH |dks |rd| _ dS | j s&d| _ dS |dkr@ddl}|j|οΏ½ dS dS )aοΏ½ Dummy implementation of acquire().
For blocking calls, self.locked_status is automatically set to
True and returned appropriately based on value of
``waitflag``. If it is non-blocking, then the value is
actually checked and not set if it is already acquired. This
is all done so that threading.Condition's assert statements
aren't triggered and throw a little fit.
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zLockType.acquirec C s | j οΏ½ d S )N)οΏ½release)r οΏ½typοΏ½valοΏ½tbr r r οΏ½__exit__οΏ½ s zLockType.__exit__c C s | j s
tοΏ½d| _ dS )zRelease the dummy lock.FT)r r )r r r r r# οΏ½ s zLockType.releasec C s | j S )N)r )r r r r οΏ½lockedοΏ½ s zLockType.lockedc C s* d| j r dnd| jj| jjtt| οΏ½οΏ½f S )Nz<%s %s.%s object at %s>r( Zunlocked)r οΏ½ __class__οΏ½
__module__οΏ½ __qualname__οΏ½hexοΏ½id)r r r r οΏ½__repr__οΏ½ s
zLockType.__repr__r )Nr ) οΏ½__name__r* r+ οΏ½__doc__r r" οΏ½ __enter__r' r# r( r. r r r r r X s
FTc C s t r
tοΏ½ndadS )z^Set _interrupt flag to True to have start_new_thread raise
KeyboardInterrupt upon exiting.TN)r r r r r r r r οΏ½ s l )N)r0 οΏ½__all__οΏ½ TIMEOUT_MAXοΏ½ RuntimeErrorr r r r r r r οΏ½objectr r r r r r r r οΏ½<module>
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