upstream/mercurial-mirror Files · contrib/showstack.py

dispatch: do not close stdout and stderr, just flush() instead...

dispatch: do not close stdout and stderr, just flush() instead Since "util: always force line buffered stdout when stdout is a tty", we have two file objects attached to the same STDOUT_FILENO. If one is closed, the underlying file descriptor is also closed, and writing to the other file object would crash the Python interpreter in a hard way, at least on Windows. So, it seems safer to not close the standard streams. This also matches the behavior of the default sys.stdout/stderr.close(), which never close the FILE* streams in C layer. https://hg.python.org/cpython/file/v2.7.13/Python/sysmodule.c#l1401

Pulkit Goyal - - Load All Authors

File last commit:

r28522:f2fe7b19 default


                r32687:12941a78

default

Download file

             showstack.py
        
                    20 lines
            
             | 511 B
            
                | text/x-python
            
             |
                PythonLexer
            
             / contrib / showstack.py
          
                    History
                
                 |
                  Source
                 | Raw
                 |Copy content
                 |Copy permalink

        Matt Mackall
    
contrib: add showstack extension...

              r26123
            
      # showstack.py - extension to dump a Python stack trace on signal

      #

      # binds to both SIGQUIT (Ctrl-\) and SIGINFO (Ctrl-T on BSDs)

        Pulkit Goyal
    
showstack: use absolute_import

              r28522
            
      from __future__ import absolute_import

      import signal

      import sys

      import traceback

        Matt Mackall
    
contrib: add showstack extension...

              r26123
            
      def sigshow(*args):

          sys.stderr.write("\n")

          traceback.print_stack(args[1], limit=10, file=sys.stderr)

          sys.stderr.write("----\n")

      def extsetup(ui):

          signal.signal(signal.SIGQUIT, sigshow)

          try:

              signal.signal(signal.SIGINFO, sigshow)

          except AttributeError:

              pass

	Site-wide shortcuts
/	Use quick search box
g h	Goto home page
g g	Goto my private gists page
g G	Goto my public gists page
g 0-9	Goto bookmarked items from 0-9
n r	New repository page
n g	New gist page

	Repositories
g s	Goto summary page
g c	Goto changelog page
g f	Goto files page
g F	Goto files page with file search activated
g p	Goto pull requests page
g o	Goto repository settings
g O	Goto repository access permissions settings
t s	Toggle sidebar on some pages

Matt Mackall contrib: add showstack extension...	r26123	# showstack.py - extension to dump a Python stack trace on signal
		#
		# binds to both SIGQUIT (Ctrl-\) and SIGINFO (Ctrl-T on BSDs)

Pulkit Goyal showstack: use absolute_import	r28522	from __future__ import absolute_import
		import signal
		import sys
		import traceback
Matt Mackall contrib: add showstack extension...	r26123
		def sigshow(*args):
		sys.stderr.write("\n")
		traceback.print_stack(args[1], limit=10, file=sys.stderr)
		sys.stderr.write("----\n")

		def extsetup(ui):
		signal.signal(signal.SIGQUIT, sigshow)
		try:
		signal.signal(signal.SIGINFO, sigshow)
		except AttributeError:
		pass