# Path: chopsticks/pencode.py
# def pencode(obj):
#     """Encode the given Python primitive structure, returning a byte string."""
#     p = Pencoder()
#     p._pencode(obj, p.backrefs, p.out)
#     return p.getvalue()
# 
# def pdecode(buf):
#     """Decode a pencoded byte string to a structure."""
#     return PDecoder().decode(buf)


import sys
import os
import fcntl
import struct
import weakref
            import traceback
from threading import RLock
from select import select
from .pencode import pencode, pdecode
        if tun:
            return tun.on_error
        return self._abort

    def _abort(self, *args):
        self.stop()

    def on_data(self):
        chunk = os.read(self.fd, max(1, self.need - len(self.buf)))
        if not chunk:
            self.errback('Unexpected EOF on stream')
            return
        self.buf += chunk
        self.loop.want_read(self.fd, self.on_data)
        self._check()

    def _check(self):
        """Check if the message size has been reached."""
        while self.running and len(self.buf) >= self.need:
            chunk = self.buf[:self.need]
            self.buf = self.buf[self.need:]
            if self.msgsize is None:
                self.msgsize, self.req_id, self.op, self.fmt = \
                    HEADER.unpack(chunk)
                self.need = self.msgsize
            else:
                self.msgsize = None
                self.need = HEADER.size
                if self.fmt == MSG_PENCODE:
                    try:

# Path: chopsticks/pencode.py
# def pencode(obj):
#     """Encode the given Python primitive structure, returning a byte string."""
#     p = Pencoder()
#     p._pencode(obj, p.backrefs, p.out)
#     return p.getvalue()
# 
# def pdecode(buf):
#     """Decode a pencoded byte string to a structure."""
#     return PDecoder().decode(buf)


# Path: chopsticks/ioloop.py
import sys
import os
import fcntl
import struct
import weakref
            import traceback
from threading import RLock
from select import select
from .pencode import pencode, pdecode

        if tun:
            return tun.on_error
        return self._abort

    def _abort(self, *args):
        self.stop()

    def on_data(self):
        chunk = os.read(self.fd, max(1, self.need - len(self.buf)))
        if not chunk:
            self.errback('Unexpected EOF on stream')
            return
        self.buf += chunk
        self.loop.want_read(self.fd, self.on_data)
        self._check()

    def _check(self):
        """Check if the message size has been reached."""
        while self.running and len(self.buf) >= self.need:
            chunk = self.buf[:self.need]
            self.buf = self.buf[self.need:]
            if self.msgsize is None:
                self.msgsize, self.req_id, self.op, self.fmt = \
                    HEADER.unpack(chunk)
                self.need = self.msgsize
            else:
                self.msgsize = None
                self.need = HEADER.size
                if self.fmt == MSG_PENCODE:
                    try:

                        data = pdecode(chunk)