def main():
if iswindows:
if '--multiprocessing-fork' in sys.argv:
# We are using the multiprocessing module on windows to launch a
# worker process
from multiprocessing import freeze_support
freeze_support()
return 0
# Close open file descriptors inherited from parent
# On Unix this is done by the subprocess module
os.closerange(3, 256)
if isosx and 'CALIBRE_WORKER_ADDRESS' not in os.environ and 'CALIBRE_SIMPLE_WORKER' not in os.environ and '--pipe-worker' not in sys.argv:
# On some OS X computers launchd apparently tries to
# launch the last run process from the bundle
# so launch the gui as usual
from calibre.gui2.main import main as gui_main
return gui_main(['calibre'])
csw = os.environ.get('CALIBRE_SIMPLE_WORKER', None)
if csw:
mod, _, func = csw.partition(':')
mod = importlib.import_module(mod)
func = getattr(mod, func)
func()
return
if '--pipe-worker' in sys.argv:
try:
exec (sys.argv[-1])
except Exception:
print('Failed to run pipe worker with command:', sys.argv[-1])
raise
return
address = cPickle.loads(unhexlify(os.environ['CALIBRE_WORKER_ADDRESS']))
key = unhexlify(os.environ['CALIBRE_WORKER_KEY'])
resultf = unhexlify(os.environ['CALIBRE_WORKER_RESULT']).decode('utf-8')
with closing(Client(address, authkey=key)) as conn:
name, args, kwargs, desc = eintr_retry_call(conn.recv)
if desc:
prints(desc)
sys.stdout.flush()
func, notification = get_func(name)
notifier = Progress(conn)
if notification:
kwargs[notification] = notifier
notifier.start()
result = func(*args, **kwargs)
if result is not None and os.path.exists(os.path.dirname(resultf)):
cPickle.dump(result, open(resultf, 'wb'), -1)
notifier.queue.put(None)
try:
sys.stdout.flush()
except EnvironmentError:
pass # Happens sometimes on OS X for GUI processes (EPIPE)
try:
sys.stderr.flush()
except EnvironmentError:
pass # Happens sometimes on OS X for GUI processes (EPIPE)
return 0
def main():
if iswindows:
if '--multiprocessing-fork' in sys.argv:
# We are using the multiprocessing module on windows to launch a
# worker process
from multiprocessing import freeze_support
freeze_support()
return 0
# Close open file descriptors inherited from parent
# On Unix this is done by the subprocess module
os.closerange(3, 256)
if isosx and 'CALIBRE_WORKER_ADDRESS' not in os.environ and 'CALIBRE_SIMPLE_WORKER' not in os.environ and '--pipe-worker' not in sys.argv:
# On some OS X computers launchd apparently tries to
# launch the last run process from the bundle
# so launch the gui as usual
from calibre.gui2.main import main as gui_main
return gui_main(['calibre'])
csw = os.environ.get('CALIBRE_SIMPLE_WORKER', None)
if csw:
mod, _, func = csw.partition(':')
mod = importlib.import_module(mod)
func = getattr(mod, func)
func()
return
if '--pipe-worker' in sys.argv:
try:
exec(sys.argv[-1])
except Exception:
print('Failed to run pipe worker with command:', sys.argv[-1])
raise
return
address = pickle.loads(unhexlify(os.environ['CALIBRE_WORKER_ADDRESS']))
key = unhexlify(os.environ['CALIBRE_WORKER_KEY'])
resultf = unhexlify(os.environ['CALIBRE_WORKER_RESULT']).decode('utf-8')
with closing(Client(address, authkey=key)) as conn:
name, args, kwargs, desc = eintr_retry_call(conn.recv)
if desc:
prints(desc)
sys.stdout.flush()
func, notification = get_func(name)
notifier = Progress(conn)
if notification:
kwargs[notification] = notifier
notifier.start()
result = func(*args, **kwargs)
if result is not None and os.path.exists(os.path.dirname(resultf)):
pickle.dump(result, open(resultf, 'wb'), -1)
notifier.queue.put(None)
try:
sys.stdout.flush()
except EnvironmentError:
pass # Happens sometimes on OS X for GUI processes (EPIPE)
try:
sys.stderr.flush()
except EnvironmentError:
pass # Happens sometimes on OS X for GUI processes (EPIPE)
return 0
def main():
if iswindows:
if '--multiprocessing-fork' in sys.argv:
# We are using the multiprocessing module on windows to launch a
# worker process
from multiprocessing import freeze_support
freeze_support()
return 0
if ismacos and 'CALIBRE_WORKER_FD' not in os.environ and 'CALIBRE_SIMPLE_WORKER' not in os.environ and '--pipe-worker' not in sys.argv:
# On some OS X computers launchd apparently tries to
# launch the last run process from the bundle
# so launch the gui as usual
from calibre.gui2.main import main as gui_main
return gui_main(['calibre'])
niceness = os.environ.pop('CALIBRE_WORKER_NICENESS', None)
if niceness:
try:
os.nice(int(niceness))
except Exception:
pass
csw = os.environ.pop('CALIBRE_SIMPLE_WORKER', None)
if csw:
mod, _, func = csw.partition(':')
mod = importlib.import_module(mod)
func = getattr(mod, func)
func()
return
if '--pipe-worker' in sys.argv:
try:
exec(sys.argv[-1])
except Exception:
print('Failed to run pipe worker with command:', sys.argv[-1])
sys.stdout.flush()
raise
return
fd = int(os.environ['CALIBRE_WORKER_FD'])
resultf = from_hex_unicode(os.environ['CALIBRE_WORKER_RESULT'])
with Connection(fd) as conn:
name, args, kwargs, desc = eintr_retry_call(conn.recv)
if desc:
prints(desc)
sys.stdout.flush()
func, notification = get_func(name)
notifier = Progress(conn)
if notification:
kwargs[notification] = notifier
notifier.start()
result = func(*args, **kwargs)
if result is not None:
os.makedirs(os.path.dirname(resultf), exist_ok=True)
with lopen(resultf, 'wb') as f:
f.write(pickle_dumps(result))
notifier.queue.put(None)
try:
sys.stdout.flush()
except OSError:
pass # Happens sometimes on OS X for GUI processes (EPIPE)
try:
sys.stderr.flush()
except OSError:
pass # Happens sometimes on OS X for GUI processes (EPIPE)
return 0
