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dadd 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
errorstart_new_threadexit get_ident
allocate_lockinterrupt_mainLockType c C s t |t t krtdt |t t kr4tdday| || W n. tk
rZ Y n ddl}|j Y nX datrdat dS )a 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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typetuple TypeErrordict_main
SystemExit traceback print_exc
_interruptKeyboardInterrupt)Zfunctionargskwargsr r %/usr/lib64/python3.6/_dummy_thread.pyr s
c C s t dS )z'Dummy implementation of _thread.exit().N)r r r r r r = s c C s dS )zDummy implementation of _thread.get_ident().
Since this module should only be used when _threadmodule is not
available, it is safe to assume that the current process is the
only thread. Thus a constant can be safely returned.
r r r r r r A s c C s t S )z0Dummy implementation of _thread.allocate_lock().)r r r r r r J s Nc C s | dk rt ddS )z-Dummy implementation of _thread.stack_size().Nz'setting thread stack size not supportedr
)r )sizer r r
stack_sizeN s r c C s t S )z0Dummy implementation of _thread._set_sentinel().)r r r r r
_set_sentinelT s r c @ sF e Zd ZdZdd ZdddZeZdd Zd
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dS )r a 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.
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d| _ d S )NF)
locked_status)selfr r r __init__c s zLockType.__init__Nr c C sH |dks |rd| _ dS | j s&d| _ dS |dkr@ddl}|j| dS dS )a 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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F)r timeZsleep)r ZwaitflagZtimeoutr! r r r acquiref s
zLockType.acquirec C s | j d S )N)release)r typvaltbr r r __exit__ s zLockType.__exit__c C s | j s
td| _ dS )zRelease the dummy lock.FT)r r )r r r r r# s zLockType.releasec C s | j S )N)r )r r r r locked s zLockType.lockedc C s* d| j r dnd| jj| jjtt| f S )Nz<%s %s.%s object at %s>r( Zunlocked)r __class__
__module__ __qualname__hexid)r r r r __repr__ s
zLockType.__repr__r )Nr ) __name__r* r+ __doc__r r" __enter__r' r# r( r. r r r r r X s
FTc C s t r
tndadS )z^Set _interrupt flag to True to have start_new_thread raise
KeyboardInterrupt upon exiting.TN)r r r r r r r r s l )N)r0 __all__ TIMEOUT_MAX RuntimeErrorr r r r r r r objectr r r r r r r r <module>
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