mirror of
https://github.com/kevingruesser/bootstrap-vz.git
synced 2025-08-25 07:46:28 +00:00
54 lines
1.5 KiB
Python
54 lines
1.5 KiB
Python
# Register deserialization handlers for objects
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# that will pass between server and client
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from bootstrapvz.remote import register_deserialization_handlers
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register_deserialization_handlers()
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def waituntil(predicate, timeout=5, interval=0.05):
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import time
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threshhold = time.time() + timeout
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while time.time() < threshhold:
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if predicate():
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return True
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time.sleep(interval)
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return False
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def read_from_socket(socket_path, termination_string, timeout):
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import socket
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import select
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import errno
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console = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM)
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console.connect(socket_path)
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console.setblocking(0)
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output = ''
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ptr = 0
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continue_select = True
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nooutput_for = 0
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select_timeout = .5
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while continue_select:
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read_ready, _, _ = select.select([console], [], [], select_timeout)
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if console in read_ready:
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nooutput_for = 0
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while True:
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try:
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output += console.recv(1024)
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if termination_string in output[ptr:]:
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continue_select = False
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else:
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ptr = len(output) - len(termination_string)
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break
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except socket.error, e:
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if e.errno != errno.EWOULDBLOCK:
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raise Exception(e)
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continue_select = False
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else:
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nooutput_for += select_timeout
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if nooutput_for > timeout:
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from exceptions import SocketReadTimeout
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msg = ('Reading from socket `{path}\' timed out after {seconds} seconds.'
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.format(path=socket_path, timeout=nooutput_for))
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raise SocketReadTimeout(msg)
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console.close()
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return output
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