77 lines
2.0 KiB
Python
Executable File
77 lines
2.0 KiB
Python
Executable File
import threading
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import subprocess, os
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import re # regexp
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from enum import Enum
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import i3_lemonbar_config as config
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kill_on_unfocus = []
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# Loggers, initialized in main function
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logger = None
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health_logger = None
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bar_in_shelf = None
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# TODO bar mode can be moved to i3Module
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class bar_mode(Enum):
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power, normal, control = range(-1,2) # Don't cycle through power
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def cycle(self):
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try:
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return bar_mode(self.value + 1)
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except ValueError:
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return bar_mode(0)
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mode = bar_mode.normal
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# Helper functions
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ansi_escape = re.compile(r'(\x9B|\x1B\[)[0-?]*[ -/]*[@-~]')
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def strip_ansi_unicode(s):
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# ANSI escape sequences are for colors in terminal and similar
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strip_ansi = ansi_escape.sub('', s)
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strip_unicode = (strip_ansi.encode('ascii', 'ignore')).decode('utf-8')
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return strip_unicode
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def create_new_fifo(fifo_file):
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"""
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Create new fifo file, removing old one if it exists
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"""
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try:
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os.remove(fifo_file)
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logger.debug('''Removed old fifo file''')
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except OSError:
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logger.debug('''No old fifo file, good''')
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try:
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os.mkfifo(fifo_file)
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except OSError:
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logger.error('''Failed, couldn't create fifo file''')
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os.remove(config.pid_file) # Clean up own PID file
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sys.exit(0)
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class Shelf():
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# A one-slot queue implemented with locks and condition objects
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def __init__(self, item = None):
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self.lock = threading.Lock()
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self.item_ready = threading.Condition(self.lock)
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self.item = item
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def get(self):
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# Consumes item
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self.item_ready.acquire()
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if self.item is None:
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# Wait until becomes ready
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self.item_ready.wait()
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ret = self.item
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self.item = None
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self.item_ready.release()
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return ret
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def put(self, item):
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# Discards previous item
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self.item_ready.acquire()
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self.item = item
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self.item_ready.notify()
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self.item_ready.release()
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