upstream/ipython Files · IPython/utils/daemonize.py

Remove 5s wait on inactivity on GUI inputhook loops...

Remove 5s wait on inactivity on GUI inputhook loops The 5s (and 1s) waits were originally added in commit 5074878, but the 5 second wait meant if you left the console for 5+ minutes idle, it would take up to 5 seconds for a response to a keypress. This tradeoff of CPU cycles for battery life seems too far. Note that commit 5074878 was originally for wx, glut and pyglet are based on the wx version and came into existence after commit 5074878.

Matthias BUSSONNIER - - Load All Authors

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r7787:28b538a9


                r13125:f9e20986

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             daemonize.py
        
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        MinRK
    
scrub twisted/deferred references from launchers...

              r4019
            
      """daemonize function from twisted.scripts._twistd_unix."""

      #-----------------------------------------------------------------------------

      # Copyright (c) Twisted Matrix Laboratories.

      # See Twisted's LICENSE for details.

      # http://twistedmatrix.com/

      #-----------------------------------------------------------------------------

      import os, errno

      def daemonize():

          # See http://www.erlenstar.demon.co.uk/unix/faq_toc.html#TOC16

          if os.fork():   # launch child and...

              os._exit(0) # kill off parent

          os.setsid()

          if os.fork():   # launch child and...

              os._exit(0) # kill off parent again.

          null = os.open('/dev/null', os.O_RDWR)

          for i in range(3):

              try:

                  os.dup2(null, i)

        Matthias BUSSONNIER
    
conform to pep 3110...

              r7787
            
              except OSError as e:

        MinRK
    
scrub twisted/deferred references from launchers...

              r4019
            
                  if e.errno != errno.EBADF:

                      raise

          os.close(null)

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MinRK scrub twisted/deferred references from launchers...	r4019	"""daemonize function from twisted.scripts._twistd_unix."""

		#-----------------------------------------------------------------------------
		# Copyright (c) Twisted Matrix Laboratories.
		# See Twisted's LICENSE for details.
		# http://twistedmatrix.com/
		#-----------------------------------------------------------------------------

		import os, errno

		def daemonize():
		# See http://www.erlenstar.demon.co.uk/unix/faq_toc.html#TOC16
		if os.fork(): # launch child and...
		os._exit(0) # kill off parent
		os.setsid()
		if os.fork(): # launch child and...
		os._exit(0) # kill off parent again.
		null = os.open('/dev/null', os.O_RDWR)
		for i in range(3):
		try:
		os.dup2(null, i)
Matthias BUSSONNIER conform to pep 3110...	r7787	except OSError as e:
MinRK scrub twisted/deferred references from launchers...	r4019	if e.errno != errno.EBADF:
		raise
		os.close(null)