def startvessel_ex(vesselname, prog_platform, argstring):
# Convert the programming platform to lowercase to make
# it case insensitive.
prog_platform = prog_platform.lower()
if vesselname not in vesseldict:
raise BadRequest, "No such vessel"
if vesseldict[vesselname]['status'] == 'Started':
raise BadRequest("Vessel has already been started")
if prog_platform not in prog_platform_dir.keys():
raise BadRequest("Programming language platform is not supported.")
# remove any prior stop file so that we can start
if os.path.exists(vesseldict[vesselname]['stopfilename']):
os.remove(vesseldict[vesselname]['stopfilename'])
for char in argstring:
if char not in allowedchars:
raise BadRequest("Character '"+char+"' not allowed in arguments")
# I'm going to capture the status and timestamp and then check the see if
# the timestamp is updated...
oldstatus, oldtimestamp = statusstorage.read_status(vesseldict[vesselname]['statusfilename'])
# Armon: this is required to fetch the networkrestrictions information from the configuration
configuration = persist.restore_object("nodeman.cfg")
# Armon: Generate the IP/Iface preferences if they exist
ip_iface_preference_flags = []
ip_iface_preference_str = "" # Needed for Win Mobile
# Only add the flags if everything necessary exists
if 'networkrestrictions' in configuration and 'repy_restricted' in configuration['networkrestrictions'] \
and configuration['networkrestrictions']['repy_restricted'] and 'repy_user_preference' in configuration['networkrestrictions']:
# Generate the preference list
for (is_ip, value) in configuration['networkrestrictions']['repy_user_preference']:
# Append the correct flag
if is_ip:
ip_iface_preference_flags.append("--ip")
ip_iface_preference_str += "--ip "
else:
ip_iface_preference_flags.append("--iface")
ip_iface_preference_str += "--iface "
# Append the value
ip_iface_preference_flags.append(value)
ip_iface_preference_str += "'" + value + "' "
# Check for the --nootherips flag
if 'repy_nootherips' in configuration['networkrestrictions'] and configuration['networkrestrictions']['repy_nootherips']:
# Append the flag
ip_iface_preference_flags.append("--nootherips")
ip_iface_preference_str += "--nootherips "
# Find the location where the sandbox files is located. Location of repyV1, repyV2 etc.
prog_platform_location = os.path.join(prog_platform_dir[prog_platform], "repy.py")
# I use absolute paths so that repy can still find the files after it
# changes directories...
# Conrad: switched this to sequence-style Popen invocation so that spaces
# in files work. Switched it back to absolute paths.
command = [sys.executable, prog_platform_location] + ip_iface_preference_flags + [
"--logfile", os.path.abspath(vesseldict[vesselname]['logfilename']),
"--stop", os.path.abspath(vesseldict[vesselname]['stopfilename']),
"--status", os.path.abspath(vesseldict[vesselname]['statusfilename']),
"--cwd", os.path.abspath(vesselname),
"--servicelog",
"--execinfo",
os.path.abspath(vesseldict[vesselname]['resourcefilename'])] + argstring.split()
portable_popen.Popen(command)
starttime = nonportable.getruntime()
# wait for 10 seconds for it to start (else return an error)
while nonportable.getruntime()-starttime < 10:
newstatus, newtimestamp = statusstorage.read_status(vesseldict[vesselname]['statusfilename'])
# Great! The timestamp was updated... The new status is the result of
# our work. Let's tell the user what happened...
if newtimestamp != oldtimestamp and newstatus != None:
break
# sleep while busy waiting...
time.sleep(.5)
else:
return "Did not start in a timely manner\nWarning"
# We need to update the status in the table because the status thread might
# not notice this before our next request... (else occasional failures on XP)
nmstatusmonitor.update_status(vesseldict, vesselname, newstatus, newtimestamp)
return newstatus+"\nSuccess"
def startvessel_ex(vesselname, prog_platform, argstring):
# Convert the programming platform to lowercase to make
# it case insensitive.
prog_platform = prog_platform.lower()
if vesselname not in vesseldict:
raise BadRequest, "No such vessel"
if vesseldict[vesselname]['status'] == 'Started':
raise BadRequest("Vessel has already been started")
if prog_platform not in prog_platform_dir.keys():
raise BadRequest("Programming language platform is not supported.")
# remove any prior stop file so that we can start
if os.path.exists(vesseldict[vesselname]['stopfilename']):
os.remove(vesseldict[vesselname]['stopfilename'])
for char in argstring:
if char not in allowedchars:
raise BadRequest("Character '" + char +
"' not allowed in arguments")
# I'm going to capture the status and timestamp and then check the see if
# the timestamp is updated...
oldstatus, oldtimestamp = statusstorage.read_status(
vesseldict[vesselname]['statusfilename'])
# Armon: this is required to fetch the networkrestrictions information from the configuration
configuration = persist.restore_object("nodeman.cfg")
# Armon: Generate the IP/Iface preferences if they exist
ip_iface_preference_flags = []
ip_iface_preference_str = "" # Needed for Win Mobile
# Only add the flags if everything necessary exists
if 'networkrestrictions' in configuration and 'repy_restricted' in configuration['networkrestrictions'] \
and configuration['networkrestrictions']['repy_restricted'] and 'repy_user_preference' in configuration['networkrestrictions']:
# Generate the preference list
for (is_ip, value
) in configuration['networkrestrictions']['repy_user_preference']:
# Append the correct flag
if is_ip:
ip_iface_preference_flags.append("--ip")
ip_iface_preference_str += "--ip "
else:
ip_iface_preference_flags.append("--iface")
ip_iface_preference_str += "--iface "
# Append the value
ip_iface_preference_flags.append(value)
ip_iface_preference_str += "'" + value + "' "
# Check for the --nootherips flag
if 'repy_nootherips' in configuration[
'networkrestrictions'] and configuration[
'networkrestrictions']['repy_nootherips']:
# Append the flag
ip_iface_preference_flags.append("--nootherips")
ip_iface_preference_str += "--nootherips "
# Find the location where the sandbox files is located. Location of repyV1, repyV2 etc.
prog_platform_location = os.path.join(prog_platform_dir[prog_platform],
"repy.py")
# I use absolute paths so that repy can still find the files after it
# changes directories...
# Conrad: switched this to sequence-style Popen invocation so that spaces
# in files work. Switched it back to absolute paths.
command = [
sys.executable, prog_platform_location
] + ip_iface_preference_flags + [
"--logfile",
os.path.abspath(vesseldict[vesselname]['logfilename']), "--stop",
os.path.abspath(vesseldict[vesselname]['stopfilename']), "--status",
os.path.abspath(vesseldict[vesselname]['statusfilename']), "--cwd",
os.path.abspath(vesselname), "--servicelog", "--execinfo",
os.path.abspath(vesseldict[vesselname]['resourcefilename'])
] + argstring.split()
portable_popen.Popen(command)
starttime = nonportable.getruntime()
# wait for 10 seconds for it to start (else return an error)
while nonportable.getruntime() - starttime < 10:
newstatus, newtimestamp = statusstorage.read_status(
vesseldict[vesselname]['statusfilename'])
# Great! The timestamp was updated... The new status is the result of
# our work. Let's tell the user what happened...
if newtimestamp != oldtimestamp and newstatus != None:
break
# sleep while busy waiting...
time.sleep(.5)
else:
return "Did not start in a timely manner\nWarning"
# We need to update the status in the table because the status thread might
# not notice this before our next request... (else occasional failures on XP)
nmstatusmonitor.update_status(vesseldict, vesselname, newstatus,
newtimestamp)
return newstatus + "\nSuccess"
def run(self):
try:
while True:
# the race condition here is that they might delete something and I will
# check it. This is okay. I'll end up getting a KeyError when trying
# to update the dictionary (checked below) or look at the old entry.
for vesselname in self.statusdict.keys()[:]:
try:
statusfilename = self.statusdict[vesselname]['statusfilename']
oldstatus = self.statusdict[vesselname]['status']
except KeyError:
# race condition, this was removed in the meantime.
continue
# there should be a status file (assuming we've inited)
try:
status,timestamp = statusstorage.read_status(statusfilename)
except IOError, e:
# if the file exists, raise the exception since we don't know what
# it is about.
if e[0] != 2:
raise
# file not found. This means it is fresh...
status = 'Fresh'
timestamp = time.time()
# Armon: Check if status is ThreadErr, this is a critical error condition
# that requires lowering the global thread count, and reseting all vessels
if status == "ThreadErr":
# Check if this is the first time for this timestamp
# Since the status file is not removed, this is necessary so that we do not
# continuously trigger the error handling code
if not timestamp in self.threadErrSet:
# Add the timestamp
self.threadErrSet.add(timestamp)
# Call the error handling module
nmthreadingerror.handle_threading_error(self.nmAPI)
# The status has a timestamp in case the process is killed harshly and
# needs to be restarted. This allows ordering of status reports
staleness = time.time() - timestamp
if staleness < 0:
# time is running backwards, likely a NTP update (allow it)...
# print "Time is running backwards by increment '"+str(staleness)+"', allowing this"
newstatus = status
elif staleness > updatebound:
# stale?
newstatus = oldstatus
if oldstatus == 'Started':
# BUG: What happens if we're wrong and it's alive? What do we do?
# How do we detect and fix this safely?
newstatus = 'Stale'
# We set the timestamp so that our update happens in the table...
timestamp = time.time() - updatebound
else:
# it seems to be okay. Use the given status
newstatus = status
update_status(self.statusdict, vesselname, newstatus, timestamp)
time.sleep(self.sleeptime)
except Exception,e:
servicelogger.log_last_exception()
raise e
def run(self):
try:
while True:
# the race condition here is that they might delete something and I will
# check it. This is okay. I'll end up getting a KeyError when trying
# to update the dictionary (checked below) or look at the old entry.
for vesselname in self.statusdict.keys()[:]:
try:
statusfilename = self.statusdict[vesselname][
'statusfilename']
oldstatus = self.statusdict[vesselname]['status']
except KeyError:
# race condition, this was removed in the meantime.
continue
# there should be a status file (assuming we've inited)
try:
status, timestamp = statusstorage.read_status(
statusfilename)
except IOError, e:
# if the file exists, raise the exception since we don't know what
# it is about.
if e[0] != 2:
raise
# file not found. This means it is fresh...
status = 'Fresh'
timestamp = time.time()
# Armon: Check if status is ThreadErr, this is a critical error condition
# that requires lowering the global thread count, and reseting all vessels
if status == "ThreadErr":
# Check if this is the first time for this timestamp
# Since the status file is not removed, this is necessary so that we do not
# continuously trigger the error handling code
if not timestamp in self.threadErrSet:
# Add the timestamp
self.threadErrSet.add(timestamp)
# Call the error handling module
nmthreadingerror.handle_threading_error(self.nmAPI)
# The status has a timestamp in case the process is killed harshly and
# needs to be restarted. This allows ordering of status reports
staleness = time.time() - timestamp
if staleness < 0:
# time is running backwards, likely a NTP update (allow it)...
# print "Time is running backwards by increment '"+str(staleness)+"', allowing this"
newstatus = status
elif staleness > updatebound:
# stale?
newstatus = oldstatus
if oldstatus == 'Started':
# BUG: What happens if we're wrong and it's alive? What do we do?
# How do we detect and fix this safely?
newstatus = 'Stale'
# We set the timestamp so that our update happens in the table...
timestamp = time.time() - updatebound
else:
# it seems to be okay. Use the given status
newstatus = status
update_status(self.statusdict, vesselname, newstatus,
timestamp)
time.sleep(self.sleeptime)
except Exception, e:
servicelogger.log_last_exception()
raise e
