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gac-x04sa
2018-10-30 10:49:38 +01:00
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commit 1661ce5d93
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script/X_X04SA_do_casave.py
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#! /usr/bin/env python
'''
X_X04SA_do_casave.py - Script to execute a casave command.
====================
Usage:
%s [<options>] -- <arguments-for-casave>
Description:
casave seems to be not 100%% reliable, at least when run from
spec via a "unix" command. It sometimes hangs up.
X_X04SA_do_casave.py will spawn a child process to run casave
with the given <arguments-for-casave>. If the process does
not terminate within the timeout (default = 5 secs), the
child process will be killed.
If the child process is killed, <arguments-for-casave> will
be parsed, looking for a -asciiout option. If it is found,
a file of the given name will be created containing the text
casave killed at <date> <time>
Options:
-h generate this help text.
-v display version information.
--debug turn on debug printout.
--timeout=<secs> specify a timeout. Default = 5 secs.
-- marks the start of args for casave.
'''
#---------------------------------------------------------------------------
import os, sys, commands
# Make sure we are running at least python level 2.
# CaChannel seems to give troubles otherwise!
try:
if sys.version[0:1] == "1":
python2 = commands.getoutput ("type -p python2")
if python2 == "":
print "\n\aThe default python version is", sys.version
print "and this script needs python level 2 or higher."
print " Python level 2 cannot be found."
sys.exit (1)
#endif
sys.argv.insert (0, python2)
os.execv (python2, sys.argv)
#endif
if sys.version[0:1] == "1":
print "\n\aThe loading of python level 2 seems to have failed!"
sys.exit (1)
#endif
except:
print "\n\aFailed to load python level 2!"
raise
#endtry
#---------------------------------------------------------------------------
import time
import getopt
import string
#---------------------------------------------------------------------------
#
def makeErrorReport (cmnd):
# ===============
os.system ("echo $(date) %s >> /exchange/share/X04SA/casaveErrors.log" % cmnd)
#enddef
#
#---------------------------------------------------------------------------
#
def show_usage ():
# ==========
#
base = os.path.basename (sys.argv[0])
print __doc__ % base
return
#enddef
#
#---------------------------------------------------------------------------
#
def show_version ():
# ============
#
cvsrepos = \
"$Source: /cvs/X/X04SA/App/scripts/X_X04SA_do_casave.py,v $"
cvsdate = "$Date: 2006/07/07 11:56:16 $"
cvsrevision = "$Revision: 1.2 $"
#
print
print "File: ", sys.argv[0]
#
l = len (cvsrepos)
print "Repository:", cvsrepos[9:l-1]
#
l = len (cvsdate)
print "Date: ", time.strftime ("%d-%b-%Y %H:%M:%S", \
time.strptime (cvsdate[7:l-1], "%Y/%m/%d %H:%M:%S"))
#
l = len (cvsrevision)
print "Revision: ", cvsrevision[11:l-1]
print
return
#enddef
#
#---------------------------------------------------------------------------
#---------------------------------------------------------------------------
#----------------------------------- The program starts here ---------------
#---------------------------------------------------------------------------
try:
red = chr (0x1b) + "[01;31m"
green = chr (0x1b) + "[01;32m"
blue = chr (0x1b) + "[01;34m"
off = chr (0x1b) + "[00m"
#
# Analyse the options
#
TimeOut = 5.0
Debug = 0
(opts, items) = getopt.getopt (sys.argv[1:], "h?v", \
("help", "debug", "timeout="))
for opt in opts:
if opt[0] == "-h": raise "Help"
if opt[0] == "-?": raise "Help"
if opt[0] == "--help": raise "Help"
if opt[0] == "-v": raise "Version"
if opt[0] == "--debug": Debug = 1
if opt[0] == "--timeout":
try:
TimeOut = float (opt[1])
except:
raise "BadTimeout"
#endtry
if TimeOut < 0.1: raise "BadTimeout"
#endif
#endfor
if Debug:
print "Arguments for casave are:"
for item in items:
print " ", item
#endfor
print "--- End of Arguments"
print "Time-out = %.1f secs" % TimeOut
#endif
cmnd = "casave"
for item in items:
cmnd = cmnd + " " + item
#endfor
if Debug:
print "casave command is:"
print " ", cmnd
#endif
pid = os.fork ()
if pid == 0:
status = os.system (cmnd)
if Debug: print "casave exit status = %d" % status
sys.exit (0)
else:
nLoops = int (TimeOut * 10)
if Debug: print "PID of casave = %d, # loops = %d" % (pid, nLoops)
for cnt in range (nLoops):
time.sleep (0.1)
(childPID, childStatus) = os.waitpid (pid, os.WNOHANG)
if childPID != 0:
if Debug: print "Status from casave = %d" % childStatus
sys.exit (childStatus)
#endif
#endfor
print "\a<<< %scasave has timed-out, killing all casave processes%s >>>" % (red, off)
makeErrorReport (cmnd)
#----------------------------------------------------------
# The following code is not completely solid ...
#
if Debug: print "Finding PID of process to kill ..."
killCmnd = ""
psCmnd = "ps -Af | grep -v grep | grep casave | grep %d" % pid
(status, op) = commands.getstatusoutput (psCmnd)
if status != 0:
if Debug: print "<<< %Cannot find any casave processes to kill.%s >>>" % (red, off)
pass
else:
psRecds = string.split (op, "\n")
if len (psRecds) == 0:
if Debug: print "<<< %sCannot find any casave processes to kill.%s >>>" % (red, off)
pass
elif len (psRecds) > 1:
if Debug: print "<<< %sCannot find a unique casave process to kill.%s >>>" % (red, off)
pass
else:
toks = string.split (psRecds[0])
if Debug: print psRecds[0]
casavePID = int (toks[1])
killCmnd = "kill -9 %d" % casavePID
#endif
#endif
if killCmnd == "":
if Debug: print "<<< %sKilling all casave processes.%s >>>" % (red, off)
killCmnd = "killall -KILL casave"
#endif
#----------------------------------------------------------
# Remove the next command when the above code has been made solid!
#
killCmnd = "killall -KILL casave"
#----------------------------------------------------------
if Debug: print "Kill command is \"%s\"" % killCmnd
os.system (killCmnd)
#endif
sys.exit (0)
#
except KeyboardInterrupt:
print "%sInterrupted!%s" % (blue, off)
sys.exit (0)
#
except SystemExit, value:
sys.exit (value)
#
except:
show_usage ()
sys.exit (0)
#--------------------------------------------------#
# emacs setup - force text mode to prevent emacs #
# from helping with the indentation #
# and tell emacs to use spaces when #
# tabbing. #
# Local Variables: #
# mode:text #
# indent-tabs-mode:nil #
# End: #
#--------------------------------------------------#
# Contact: D.Maden
# Intial version: Oct 2003
#
# $Author: maden $
# $Source: /cvs/X/X04SA/App/scripts/X_X04SA_do_casave.py,v $
# $Revision: 1.2 $
# $Date: 2006/07/07 11:56:16 $
#
#------------------------------------- End of X_X04SA_do_casave.py