def serve(server, host=None, port=None, profile='.bash_profile'):
'''begin serving RPC requests
Inputs:
server -- name of RPC server (i.e. 'ppserver')
host -- hostname on which a server should be launched
port -- port number (on host) that server will accept request at
profile -- file on remote host that instantiates the user's environment
[default = '.bash_profile']
'''
if host is None: #XXX: and...?
profile = ''
else:
profile = 'source %s; ' % profile
file = '~/bin/%s.py' % server #XXX: _should_ be on the $PATH
if port is None: port = randomport(host)
command = "%s -p %s" % (file,port)
rserver = execute(command, host, bg=True)
response = rserver.response()
logging.info('response = %r', response)
if response in ['', None]: #XXX: other responses allowed (?)
pass
else: #XXX: not really error checking...
logging.error('invalid response = %r', response)
from time import sleep
delay = 2.0
sleep(delay)
return rserver
def serve(server, host=None, port=None, profile='.bash_profile'):
'''begin serving RPC requests
Inputs:
server -- name of RPC server (i.e. 'ppserver')
host -- hostname on which a server should be launched
port -- port number (on host) that server will accept request at
profile -- file on remote host that instantiates the user's environment
[default = '.bash_profile']
'''
if host is None: #XXX: and...?
profile = ''
else:
profile = 'source %s; ' % profile
file = '~/bin/%s.py' % server #XXX: _should_ be on the $PATH
if port is None: port = randomport(host)
command = "%s -p %s" % (file,port)
rserver = execute(command, host, bg=True)
response = rserver.response()
pathos.logger().info('response = %r', response)
if response in ['', None]: #XXX: other responses allowed (?)
pass
else: #XXX: not really error checking...
pathos.logger().error('invalid response = %r', response)
from time import sleep
delay = 2.0
sleep(delay)
return rserver
def randomport(host=None):
'''select a open port on a (possibly) remote host
Inputs:
host -- hostname on which to select a open port
'''
from pathos.portpicker import randomport
if not host:
return randomport()
from pathos.LauncherSSH import LauncherSSH
from pathos.portpicker import __file__ as src
# make sure src is a .py file, not .pyc or .pyo
src = src.rstrip('co')
launcher = LauncherSSH() #XXX: use pox.which / which_python?
launcher(command='python', host=host, background=False, stdin=open(src))
logging.info('executing {python <%s} on %s', src, host)
launcher.launch()
try:
rport = int(launcher.response())
except:
from Tunnel import TunnelException
raise TunnelException("failure to pick remote port")
# return remote port number
return rport
def randomport(host=None):
'''select a open port on a (possibly) remote host
Inputs:
host -- hostname on which to select a open port
'''
from pathos.portpicker import randomport
if not host:
return randomport()
from pathos.secure import Pipe
from pathos.portpicker import __file__ as src
# make sure src is a .py file, not .pyc or .pyo
src = src.rstrip('co')
launcher = Pipe() #XXX: use pox.which / which_python?
launcher(command='python', host=host, background=False, stdin=open(src))
pathos.logger().info('executing {python <%s} on %s', src, host)
launcher.launch()
try:
rport = int(launcher.response())
except:
from pathos.secure import TunnelException
raise TunnelException("failure to pick remote port")
# return remote port number
return rport
