Lc @ s d Z d d d d d d d g Z d d k Z d e f d
YZ h d Z d Z d
Z d Z d d Z d e f d YZ
e a e a d Z d S( s, 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
t errort start_new_threadt exitt get_identt
allocate_lockt interrupt_maint LockTypeiNc B s e Z d Z d Z RS( s% Dummy implementation of thread.error.c G s
| | _ d S( N( t args( t selfR ( ( s" /usr/lib/python2.6/dummy_thread.pyt __init__ s ( t __name__t
__module__t __doc__R ( ( ( s" /usr/lib/python2.6/dummy_thread.pyR s c C s t | t t j o t d n t | t t j o t d n t a y | | | Wn# t j
o n t i n Xt a t
o t a
t n d S( s 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.
s 2nd arg must be a tuples 3rd arg must be a dictN( t typet tuplet TypeErrort dictt Falset _maint
SystemExitt
_tracebackt print_exct Truet
_interruptt KeyboardInterrupt( t functionR t kwargs( ( s" /usr/lib/python2.6/dummy_thread.pyR s
c C s
t d S( s& Dummy implementation of thread.exit().N( R ( ( ( s" /usr/lib/python2.6/dummy_thread.pyR : s c C s d S( s Dummy 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.
i( ( ( ( s" /usr/lib/python2.6/dummy_thread.pyR > s c C s t S( s/ Dummy implementation of thread.allocate_lock().( R ( ( ( s" /usr/lib/python2.6/dummy_thread.pyR G s c C s! | d j o t d n d S( s, Dummy implementation of thread.stack_size().s' setting thread stack size not supportedi N( t NoneR ( t size( ( s" /usr/lib/python2.6/dummy_thread.pyt
stack_sizeK s
c B sD e Z d Z d Z d d Z e Z d Z d Z d Z RS( s 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
t | _ d S( N( R t
locked_status( R ( ( s" /usr/lib/python2.6/dummy_thread.pyR \ s c C sB | d j p | o t | _ t S| i p t | _ t St Sd S( s 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.
N( R R R R ( R t waitflag( ( s" /usr/lib/python2.6/dummy_thread.pyt acquire_ s
c C s | i d S( N( t release( R t typt valt tb( ( s" /usr/lib/python2.6/dummy_thread.pyt __exit__v s c C s! | i p
t n t | _ t S( s Release the dummy lock.( R R R R ( R ( ( s" /usr/lib/python2.6/dummy_thread.pyR! y s
c C s | i S( N( R ( R ( ( s" /usr/lib/python2.6/dummy_thread.pyt locked s N(
R
R R R R R t __enter__R% R! R& ( ( ( s" /usr/lib/python2.6/dummy_thread.pyR Q s c C s t o
t n t a d S( s^ Set _interrupt flag to True to have start_new_thread raise
KeyboardInterrupt upon exiting.N( R R R R ( ( ( s" /usr/lib/python2.6/dummy_thread.pyR s
( R t __all__t tracebackR t ExceptionR R R R R R R t objectR R R R R R ( ( ( s" /usr/lib/python2.6/dummy_thread.pyt <module>
s 5
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