Advanced dispatcher class
- generic class the new asyncore-based network subsystem that handles buffered data transfer
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src/network/advanceddispatcher.py
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50
src/network/advanceddispatcher.py
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class AdvancedDispatcher(asyncore.dispatcher):
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_buf_len = 131072
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def __init__(self, sock):
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asyncore.dispatcher.__init__(self, sock)
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self.read_buf = ""
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self.write_buf = ""
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self.state = "init"
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def slice_read_buf(length=0):
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self.read_buf = self.read_buf[length:]
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def slice_write_buf(length=0):
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self.write_buf = self.read_buf[length:]
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def read_buf_sufficient(length=0):
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if len(self.read_buf) < length:
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return False
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else:
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return True
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def process(self):
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if len(self.read_buf) == 0:
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return
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while True:
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try:
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if getattr(self, "state_" + str(self.state))() is False:
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break
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except AttributeError:
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# missing state
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raise
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def set_state(self, state, length):
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self.slice_read_buf(length)
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self.state = state
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def writable(self):
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return len(self.write_buf) > 0
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def readable(self):
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return len(self.read_buf) < AdvancedDispatcher._buf_len
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def handle_read(self):
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self.read_buf += self.recv(AdvancedDispatcher._buf_len)
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self.process()
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def handle_write(self):
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written = self.send(self.write_buf)
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self.slice_write_buf(written)
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# self.process()
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