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#!/usr/bin/env python
#
# EnvBox Protocol implementation
# Version 1.0
#
""" ChangeLog """
"""
v1.0 : Initial Release
"""
import select
import re
import time
import array
import struct
from envbox_database import *
from envbox_parser import *
from envbox_serial import *
from envbox_server import *
"""*****************************************************"""
""" """
""" Software Defines & Parmeters """
""" """
"""*****************************************************"""
SOFTWARE_VERSION = '1.0'
RS232_BAUDRATE = 115200
"SERVER_TCP_IP = '192.168.1.1'"
SERVER_TCP_IP ='127.0.0.1'
SERVER_TCP_PORT = 3081
SERVER_BUFFER_SIZE = 128
SERVER_TIMEOUT = 600
RETRIES = 3
"""*****************************************************"""
""" """
""" Misc & debug Functions """
""" """
"""*****************************************************"""
def tsprint( txt ):
print time.strftime("%a, %d %b %Y %H:%M:%S", time.localtime()) + ' : ' + txt
def test_device( device ):
try:
d = envbox( device )
try :
res = d.cmd( 'BoardType' )
except:
res = None
if res == 2:
print 'PrismaMedia II'
return 0
elif res == 3:
print 'PrismaMedia-Eco'
return 0
else:
print 'Unkown Device ' + device
return 1
except:
print 'Invalid device ' + device
return 1
"""*****************************************************"""
""" """
""" Server & Daemon Functions """
""" """
"""*****************************************************"""
import sys, os
def server( device ):
d = envbox( device )
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.bind((SERVER_TCP_IP, SERVER_TCP_PORT))
s.listen( 1 )
while True:
conn, addr = s.accept()
nxst = NumeriflashXmlServerThread( conn, addr[0], addr[1] )
conn.close()
sys.exit(2)
import signal
conn = None
runvar = True
def signal_handler(signal, frame):
runvar = False
conn.close()
def daemonize():
try:
pid = os.fork()
if pid > 0:
# exit first parent
sys.exit(0)
except OSError, e:
print >>sys.stderr, "fork #1 failed: %d (%s)" % (e.errno, e.strerror)
sys.exit(1)
# decouple from parent environment
os.chdir("/")
os.setsid()
os.umask(0)
# do second fork
try:
pid = os.fork()
if pid > 0:
# exit from second parent, print eventual PID before
#print pid
sys.exit(0)
except OSError, e:
print >>sys.stderr, "fork #2 failed: %d (%s)" % (e.errno, e.strerror)
sys.exit(1)
os.setsid()
sys.stdout=open("/dev/null", 'w+')
sys.stdin=open("/dev/null", 'r')
signal.signal(signal.SIGINT, signal_handler)
signal.signal(signal.SIGTERM, signal_handler)
"""*****************************************************"""
""" """
""" Main Application """
""" """
"""*****************************************************"""
if __name__ == "__main__":
import sys
argc = len( sys.argv )
# help call
if argc == 1:
# Help
print 'Usage : envbox [-l|-t|-v|-h|-s] [-d device] [Command [value]]'
print
sys.exit(1)
#
# Argument Parsing
#
cmd_test = False
cmd_server = False
cmd_query = False
device = '/dev/serial/by-id/usb-STMicroelectronics_STM32_Virtual_ComPort_in_FS_Mode_00000000050C-if00'
argoff = 1
for arg in sys.argv:
# Print Command List
if arg == '-l':
envbox_db.printCommandList()
sys.exit(1)
# Print version
if arg == '-v':
print 'envbox communication utility v' + SOFTWARE_VERSION
sys.exit(1)
# Help
elif arg == '-h':
print 'Usage : envbox Command [value]'
sys.exit(1)
elif arg == '-s':
print 'Running as a XML server'
cmd_server = True
elif arg == '-t':
cmd_test = True
try:
device = sys.argv[ sys.argv.index( arg ) + 1 ]
except:
print 'Syntax: -t device_to_test'
sys.exit(1)
elif arg == '-d':
try:
device = sys.argv[ sys.argv.index( arg ) + 1 ]
argoff = argoff+2
except:
print 'Syntax: -d device_to_use'
sys.exit(1)
#
# Device Testing
#
if cmd_test == True:
res = test_device( device )
sys.exit( res )
#
# Server Operation
#
if cmd_server == True:
try:
pid = os.fork()
if pid > 0:
# exit first parent
sys.exit(0)
except OSError, e:
print >>sys.stderr, "fork #1 failed: %d (%s)" % (e.errno, e.strerror)
sys.exit(1)
# decouple from parent environment
os.chdir("/")
os.setsid()
os.umask(0)
# do second fork
try:
pid = os.fork()
if pid > 0:
# exit from second parent, print eventual PID before
#print pid
sys.exit(0)
except OSError, e:
print >>sys.stderr, "fork #2 failed: %d (%s)" % (e.errno, e.strerror)
sys.exit(1)
os.setsid()
sys.stdout=open('/root/envbox_'+ time.strftime("%a_%d_%b_%Y_%H%M%S", time.localtime()) + '.log', 'w+', 0)
sys.stdin=open("/dev/null", 'r')
signal.signal(signal.SIGINT, signal_handler)
signal.signal(signal.SIGTERM, signal_handler)
# May fail if udev is not started yet
d = envbox( device )
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
s.bind((SERVER_TCP_IP, SERVER_TCP_PORT))
s.listen( 1 )
s.settimeout( SERVER_TIMEOUT )
clients = []
while runvar:
try:
conn, addr = s.accept()
except socket.timeout:
if NumeriflashXmlServerThread.watchdog:
tsprint( 'System has been inactive for ' + str(SERVER_TIMEOUT) + ' seconds => Exiting' )
break
else:
NumeriflashXmlServerThread.watchdog = True
continue
except:
tsprint( 'Server exception -> Exiting' )
break
nxst = NumeriflashXmlServerThread( conn, addr[0], addr[1], d, True, device )
clients.append( nxst )
clients[:] = [ x for x in clients if x.isAlive() ]
for client in clients:
client.stop()
sys.exit(0)
#
# Command Line Operation
#
d = envbox( device )
if argc == 1+argoff:
cmd = sys.argv[argoff]
res = d.cmd( cmd )
print res
elif argc == 2+argoff:
cmd = sys.argv[argoff]
if envbox_db.isCommand( cmd ):
value = sys.argv[argoff+1]
res = d.cmd( cmd, value )
print res
else:
cmd = cmd + sys.argv[ argoff + 1 ]
res = d.cmd( cmd )
print res
elif argc == argoff + 3:
cmd = sys.argv[ argoff ] + sys.argv[ argoff + 1 ]
value = sys.argv[argoff+2]
res = d.cmd( cmd, value )
print res
else:
print 'Usage : envbox Command [value]'
sys.exit(2)