import os
import sys
import pickle
+noserial=False
+try:
+ from PHPSerialize import *
+ from PHPUnserialize import *
+except:
+ #print >>sys.stderr, "PHPSerial db type not allowed."
+ noserial=True
+
import inspect
import shutil
-from config import config
-config = config()
+import config
+
+import config
DEBUG= 0
-PICKLE_PATH="pdb"
+PICKLE_PATH=config.MONITOR_DATA_ROOT
-def dbLoad(name):
- return SPickle().load(name)
+class ExceptionTimeout(Exception): pass
-def dbExists(name):
+def dbLoad(name, type=None):
+ return SPickle().load(name, type)
+
+def dbExists(name, type=None):
#if self.config.debug:
# name = "debug.%s" % name
- return SPickle().exists(name)
+ return SPickle().exists(name, type)
-def dbDump(name, obj=None):
+def dbDump(name, obj=None, type=None):
# depth of the dump is 2 now, since we're redirecting to '.dump'
- return SPickle().dump(name, obj, 2)
+ return SPickle().dump(name, obj, type, 2)
-def if_cached_else(cond, name, function):
+def if_cached_else_refresh(cond, refresh, name, function, type=None):
s = SPickle()
- if (cond and s.exists("production.%s" % name)) or \
- (cond and config.debug and s.exists("debug.%s" % name)):
- o = s.load(name)
+ if refresh:
+ if not config.debug and s.exists("production.%s" % name, type):
+ s.remove("production.%s" % name, type)
+ if config.debug and s.exists("debug.%s" % name, type):
+ s.remove("debug.%s" % name, type)
+
+ return if_cached_else(cond, name, function, type)
+
+def if_cached_else(cond, name, function, type=None):
+ s = SPickle()
+ if (cond and s.exists("production.%s" % name, type)) or \
+ (cond and config.debug and s.exists("debug.%s" % name, type)):
+ o = s.load(name, type)
else:
o = function()
if cond:
- s.dump(name, o) # cache the object using 'name'
+ s.dump(name, o, type) # cache the object using 'name'
+ o = s.load(name, type)
+ # TODO: what if 'o' hasn't been converted...
return o
class SPickle:
- def __init__(self):
- self.config = config
+ def __init__(self, path=PICKLE_PATH):
+ self.path = path
- def if_cached_else(self, cond, name, function):
- if cond and self.exists("production.%s" % name):
- o = self.load(name)
+ def if_cached_else(self, cond, name, function, type=None):
+ if cond and self.exists("production.%s" % name, type):
+ o = self.load(name, type)
else:
o = function()
if cond:
- self.dump(name, o) # cache the object using 'name'
+ self.dump(name, o, type) # cache the object using 'name'
return o
- def __file(self, name):
- return "%s/%s.pkl" % (PICKLE_PATH, name)
+ def __file(self, name, type=None):
+ if type == None:
+ return "%s/%s.pkl" % (self.path, name)
+ else:
+ if noserial:
+ raise Exception("No PHPSerializer module available")
+
+ return "%s/%s.phpserial" % (self.path, name)
- def exists(self, name):
- return os.path.exists(self.__file(name))
+ def exists(self, name, type=None):
+ return os.path.exists(self.__file(name, type))
+
+ def remove(self, name, type=None):
+ return os.remove(self.__file(name, type))
- def load(self, name):
+ def load(self, name, type=None):
"""
In debug mode, we should fail if neither file exists.
if the debug file exists, reset name
Load the file
"""
- if self.config.debug:
- if self.exists("debug.%s" % name):
+ if config.debug:
+ if self.exists("debug.%s" % name, type):
name = "debug.%s" % name
- elif self.exists("production.%s" % name):
+ elif self.exists("production.%s" % name, type):
debugname = "debug.%s" % name
- if not self.exists(debugname):
+ if not self.exists(debugname, type):
name = "production.%s" % name
- shutil.copyfile(self.__file(name), self.__file(debugname))
+ shutil.copyfile(self.__file(name, type), self.__file(debugname, type))
name = debugname
else: # neither exist
- raise Exception, "No such pickle based on %s" % self.__file("debug.%s" % name)
+ raise Exception, "No such pickle based on %s" % self.__file("debug.%s" % name, type)
else:
- if not self.exists("production.%s" % name):
+ if self.exists("production.%s" % name, type):
+ name = "production.%s" % name
+ elif self.exists(name, type):
+ name = name
+ else:
raise Exception, "No such file %s" % name
- name = "production.%s" % name
+
- print "loading %s" % self.__file(name)
- f = open(self.__file(name), 'r')
- o = pickle.load(f)
+ #print "loading %s" % self.__file(name, type)
+ f = open(self.__file(name, type), 'r')
+ if type == None:
+ o = pickle.load(f)
+ else:
+ if noserial:
+ raise Exception("No PHPSerializer module available")
+ s = PHPUnserialize()
+ o = s.unserialize(f.read())
f.close()
return o
# use the environment to extract the data associated with the local
# variable 'name'
- def dump(self, name, obj=None, depth=1):
+ def dump(self, name, obj=None, type=None, depth=1):
if obj == None:
o = inspect.getouterframes(inspect.currentframe())
up1 = o[depth][0] # get the frame one prior to (up from) this frame
argvals = inspect.getargvalues(up1)
# TODO: check that 'name' is a local variable; otherwise this would fail.
obj = argvals[3][name] # extract the local variable name 'name'
- if not os.path.isdir("%s/" % PICKLE_PATH):
- os.mkdir("%s" % PICKLE_PATH)
- if self.config.debug:
+ if not os.path.isdir("%s/" % self.path):
+ os.mkdir("%s" % self.path)
+ if config.debug:
name = "debug.%s" % name
else:
name = "production.%s" % name
- f = open(self.__file(name), 'w')
- pickle.dump(obj, f)
+ f = open(self.__file(name, type), 'w')
+ if type == None:
+ pickle.dump(obj, f)
+ else:
+ if noserial:
+ raise Exception("No PHPSerializer module available")
+ s = PHPSerialize()
+ f.write(s.serialize(obj))
f.close()
return
'PasswordAuthentication':'no',
'ConnectTimeout':'%s' % COMMAND_TIMEOUT}
from select import select
+import subprocess
+import signal
+
+class Sopen(subprocess.Popen):
+ def kill(self, signal = signal.SIGTERM):
+ os.kill(self.pid, signal)
+
+def read_t(stream, count, timeout=COMMAND_TIMEOUT*2):
+ lin, lout, lerr = select([stream], [], [], timeout)
+ if len(lin) == 0:
+ raise ExceptionTimeout("TIMEOUT Running: %s" % cmd)
+
+ return stream.read(count)
+
class CMD:
def __init__(self):
pass
- def run_noexcept(self, cmd):
+ def run_noexcept(self, cmd, timeout=COMMAND_TIMEOUT*2):
- (f_in, f_out, f_err) = os.popen3(cmd)
- lout, lin, lerr = select([f_out,f_err], [], [], COMMAND_TIMEOUT*2)
+ #print "CMD.run_noexcept(%s)" % cmd
+ try:
+ return CMD.run(self,cmd,timeout)
+ except ExceptionTimeout:
+ import traceback; print traceback.print_exc()
+ return ("", "SCRIPTTIMEOUT")
+
+ def system(self, cmd, timeout=COMMAND_TIMEOUT*2):
+ (o,e) = self.run(cmd, timeout)
+ self.output = o
+ self.error = e
+ if self.s.returncode is None:
+ self.s.wait()
+ return self.s.returncode
+
+ def run(self, cmd, timeout=COMMAND_TIMEOUT*2):
+
+ #print "CMD.run(%s)" % cmd
+ s = Sopen(cmd, shell=True, stdin=subprocess.PIPE, stdout=subprocess.PIPE, stderr=subprocess.PIPE, close_fds=True)
+ self.s = s
+ (f_in, f_out, f_err) = (s.stdin, s.stdout, s.stderr)
+ #print "calling select(%s)" % timeout
+ lout, lin, lerr = select([f_out], [], [f_err], timeout)
+ #print "TIMEOUT!!!!!!!!!!!!!!!!!!!"
if len(lin) == 0 and len(lout) == 0 and len(lerr) == 0:
- # Reached a timeout!
- print "TODO: kill subprocess: '%s'" % cmd
- # TODO: kill subprocess??
- return ("", "TIMEOUT")
- o_value = f_out.read()
+ # Reached a timeout! Nuke process so it does not hang.
+ #print "KILLING"
+ s.kill(signal.SIGKILL)
+ raise ExceptionTimeout("TIMEOUT Running: %s" % cmd)
+ else:
+ #print "RETURNING"
+ #print len(lin), len(lout), len(lerr)
+ pass
+
+ o_value = ""
e_value = ""
- if o_value == "": # An error has occured
- e_value = f_err.read()
+ #print "reading from f_out"
+ if len(lout) > 0: o_value = f_out.read()
+ #print "reading from f_err"
+ if len(lerr) > 0: e_value = f_err.read()
+
+ #print "striping output"
o_value = o_value.strip()
e_value = e_value.strip()
+ #print "OUTPUT", o_value, e_value
+
+ #print "closing files"
f_out.close()
f_in.close()
f_err.close()
+ try:
+ #print "s.kill()"
+ s.kill()
+ #print "after s.kill()"
+ except OSError:
+ # no such process, due to it already exiting...
+ pass
+
+ #print o_value, e_value
return (o_value, e_value)
- def run(self, cmd):
+ def runargs(self, args, timeout=COMMAND_TIMEOUT*2):
- (f_in, f_out, f_err) = os.popen3(cmd)
- value = f_out.read()
- if value == "":
- raise Exception, f_err.read()
- value = value.strip()
+ #print "CMD.run(%s)" % " ".join(args)
+ s = Sopen(args, shell=True, stdin=subprocess.PIPE, stdout=subprocess.PIPE, stderr=subprocess.PIPE, close_fds=True)
+ self.s = s
+ (f_in, f_out, f_err) = (s.stdin, s.stdout, s.stderr)
+ lout, lin, lerr = select([f_out], [], [f_err], timeout)
+ if len(lin) == 0 and len(lout) == 0 and len(lerr) == 0:
+ # Reached a timeout! Nuke process so it does not hang.
+ s.kill(signal.SIGKILL)
+ raise ExceptionTimeout("TIMEOUT Running: %s" % cmd)
+ o_value = f_out.read()
+ e_value = ""
+ if o_value == "": # An error has occured
+ e_value = f_err.read()
+
+ o_value = o_value.strip()
+ e_value = e_value.strip()
f_out.close()
f_in.close()
f_err.close()
- return value
+ try:
+ s.kill()
+ except OSError:
+ # no such process, due to it already exiting...
+ pass
+
+ return (o_value, e_value)
-
class SSH(CMD):
- def __init__(self, user, host, options = ssh_options):
+ def __init__(self, user, host, port=22, options = ssh_options):
self.options = options
self.user = user
self.host = host
+ self.port = port
return
def __options_to_str(self):
options = options + "-o %s=%s " % (o,v)
return options
- def run(self, cmd):
- cmd = "ssh %s %s@%s '%s'" % (self.__options_to_str(),
+ def run(self, cmd, timeout=COMMAND_TIMEOUT*2):
+ cmd = "ssh -p %s %s %s@%s '%s'" % (self.port, self.__options_to_str(),
self.user, self.host, cmd)
- return CMD.run(self, cmd)
+ #print "SSH.run(%s)" % cmd
+ return CMD.run(self, cmd, timeout)
def get_file(self, rmt_filename, local_filename=None):
if local_filename == None:
local_filename = "./"
- cmd = "scp -B %s %s@%s:%s %s" % (self.__options_to_str(),
+ cmd = "scp -P %s -B %s %s@%s:%s %s" % (self.port, self.__options_to_str(),
self.user, self.host,
rmt_filename, local_filename)
# output :
return CMD.run_noexcept(self, cmd)
def run_noexcept(self, cmd):
- cmd = "ssh %s %s@%s '%s'" % (self.__options_to_str(),
+ cmd = "ssh -p %s %s %s@%s '%s'" % (self.port, self.__options_to_str(),
self.user, self.host, cmd)
+ #print "SSH.run_noexcept(%s)" % cmd
return CMD.run_noexcept(self, cmd)
+ def run_noexcept2(self, cmd, timeout=COMMAND_TIMEOUT*2):
+ cmd = "ssh -p %s %s %s@%s %s" % (self.port, self.__options_to_str(),
+ self.user, self.host, cmd)
+ #print "SSH.run_noexcept2(%s)" % cmd
+ r = CMD.run_noexcept(self, cmd, timeout)
+
+ # XXX: this may be resulting in deadlocks... not sure.
+ #if self.s.returncode is None:
+ # #self.s.kill()
+ # self.s.kill(signal.SIGKILL)
+ # self.s.wait()
+ # self.ret = self.s.returncode
+ self.ret = -1
+
+ return r
+
+ def system2(self, cmd, timeout=COMMAND_TIMEOUT*2):
+ cmd = "ssh -p %s %s %s@%s %s" % (self.port, self.__options_to_str(),
+ self.user, self.host, cmd)
+ #print "SSH.system2(%s)" % cmd
+ return CMD.system(self, cmd, timeout)
+
def runE(self, cmd):
- cmd = "ssh %s %s@%s '%s'" % (self.__options_to_str(),
+ cmd = "ssh -p %s %s %s@%s '%s'" % (self.port, self.__options_to_str(),
self.user, self.host, cmd)
if ( DEBUG == 1 ):
print cmd,
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