no-cups
Last change
on this file since 345c476 was
345c476,
checked in by Jessica B. Hamrick <jhamrick@…>, 12 years ago
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Make status handling better in job.py
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-
Property mode set to
100644
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File size:
2.8 KB
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Rev | Line | |
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[eee389a] | 1 | import logging |
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| 2 | import threading |
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| 3 | import subprocess |
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| 4 | import time |
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| 5 | |
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| 6 | # initialize logger |
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| 7 | logger = logging.getLogger(__name__) |
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| 8 | |
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| 9 | class Player(threading.Thread): |
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| 10 | |
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| 11 | def __init__(self, fh, *args, **kwargs): |
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| 12 | self.lock = threading.RLock() |
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| 13 | |
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| 14 | with self.lock: |
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| 15 | super(Player, self).__init__(*args, **kwargs) |
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| 16 | self.fh = fh |
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| 17 | self.player = None |
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| 18 | self._callback = None |
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[345c476] | 19 | self._paused = False |
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[eee389a] | 20 | |
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| 21 | @property |
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| 22 | def is_playing(self): |
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| 23 | with self.lock: |
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| 24 | playing = self.player and self.player.poll() is None |
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| 25 | return playing |
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| 26 | |
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| 27 | @property |
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[345c476] | 28 | def is_paused(self): |
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| 29 | with self.lock: |
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| 30 | paused = self.is_playing and self._paused |
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| 31 | return paused |
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| 32 | |
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| 33 | @property |
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| 34 | def is_done(self): |
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| 35 | with self.lock: |
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| 36 | done = self.player and self.player.poll() is not None |
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| 37 | return done |
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| 38 | |
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| 39 | @property |
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[eee389a] | 40 | def callback(self): |
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| 41 | return self._callback |
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| 42 | @callback.setter |
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| 43 | def callback(self, val): |
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| 44 | with self.lock: |
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| 45 | self._callback = val |
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| 46 | |
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| 47 | def run(self): |
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| 48 | if self.fh is None: |
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| 49 | raise ValueError, "file handler is None" |
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| 50 | |
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| 51 | self.mplayer_play() |
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| 52 | with self.lock: |
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| 53 | if self.callback: |
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| 54 | self.callback() |
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| 55 | |
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| 56 | def mplayer_play(self): |
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[345c476] | 57 | if not self.isAlive(): |
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| 58 | return |
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| 59 | |
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[eee389a] | 60 | logger.info("playing file '%s'" % self.fh.name) |
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[345c476] | 61 | self._paused = False |
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[eee389a] | 62 | |
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| 63 | # open mplayer |
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| 64 | with self.lock: |
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| 65 | self.player = subprocess.Popen( |
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| 66 | "/usr/bin/mplayer -really-quiet -slave %s" % self.fh.name, |
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| 67 | shell=True, |
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| 68 | stdin=subprocess.PIPE, |
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| 69 | stderr=subprocess.PIPE, |
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| 70 | stdout=subprocess.PIPE) |
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| 71 | |
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| 72 | # wait for mplayer to finish |
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| 73 | while True: |
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| 74 | with self.lock: |
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| 75 | playing = self.is_playing |
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| 76 | if not playing: |
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| 77 | break |
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| 78 | time.sleep(0.1) |
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[345c476] | 79 | |
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[eee389a] | 80 | logger.info("mplayer finished with code %d" % self.player.returncode) |
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| 81 | |
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| 82 | # get output from mplayer and log it |
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| 83 | with self.lock: |
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| 84 | stderr = self.player.stderr.read() |
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| 85 | stdout = self.player.stdout.read() |
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| 86 | |
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| 87 | if stderr.strip() != "": |
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| 88 | logger.error(stderr) |
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| 89 | if stdout.strip() != "": |
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| 90 | logger.debug(stdout) |
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| 91 | |
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| 92 | def mplayer_pause(self): |
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[345c476] | 93 | if not self.isAlive(): |
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| 94 | return |
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| 95 | |
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[eee389a] | 96 | with self.lock: |
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| 97 | if self.is_playing: |
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| 98 | self.player.stdin.write("pause\n") |
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[345c476] | 99 | self._paused = not(self._paused) |
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[eee389a] | 100 | |
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| 101 | def mplayer_stop(self): |
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[345c476] | 102 | if not self.isAlive(): |
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| 103 | return |
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| 104 | |
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[eee389a] | 105 | with self.lock: |
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| 106 | if self.is_playing: |
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| 107 | self.player.stdin.write("quit\n") |
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