def XConnect():
name, host, displayno, screenno = xnet.get_X_display()
xsock = xnet.get_X_socket(host, displayno)
auth_name, auth_data = xnet.get_X_auth(xsock, name, host, displayno)
byte_order = xnet.get_X_byteorder()
rq = XConnectRequest(byte_order, 11, 0, auth_name, auth_data)
xreply = Xchange(xsock, rq)
if xreply[0] == '\x00':
repobj = XConnectRefusedReply(xreply)
raise xnet.XConnectionError(repobj.reason)
elif xreply[0] == '\x01':
repobj = XConnectAcceptedReply(xreply)
elif xreply[0] == '\x02':
repobj = XConnectAuthenticateReply(xreply)
raise xnet.XConnectionError(repobj.reason)
else:
raise xnet.XConnectionError('Unknown connection failure')
return xsock, repobj
def XConnect():
name, host, displayno, screenno = xnet.get_X_display()
xsock = xnet.get_X_socket( host, displayno )
auth_name, auth_data = xnet.get_X_auth( xsock, name, host, displayno )
byte_order = xnet.get_X_byteorder()
rq = XConnectRequest( byte_order, 11, 0, auth_name, auth_data )
xreply = Xchange( xsock, rq )
if xreply[0] == '\x00':
repobj = XConnectRefusedReply(xreply)
raise xnet.XConnectionError( repobj.reason )
elif xreply[0] == '\x01':
repobj = XConnectAcceptedReply(xreply)
elif xreply[0] == '\x02':
repobj = XConnectAuthenticateReply(xreply)
raise xnet.XConnectionError( repobj.reason )
else:
raise xnet.XConnectionError( 'Unknown connection failure' )
return xsock, repobj
def query(self, type, option, target=None, device=None):
'''retrieve the value from an option for a target. If target is None,
the first found target is found. Device should only be specified
for options that require one. If the specified device is not found,
the value of the option without a device specification is returned,
if present. This is how nvidia-settings behaves if I'm correct.
Returns first option found, or None if not found. The option is
cast to type on success (so that you don't have to check for None
and then cast it).
Only options for the X display are found.
TODO: make more specific targets in configfile get precedence.'''
# option name
opts = filter(lambda x: x[1] == option, self._opts)
# device
# TODO it's unclear if multiple devices may be specified for a single
# option in the configuration file
if device:
optsdfl = filter(lambda x: not x[2], opts)
opts = filter(lambda x: x[2] == device, opts)
if not opts: opts = optsdfl
if not target: target = Screen(0)
# target: only current host for display
d, host, dno, screen = xnet.get_X_display()
if not host: host = socket.gethostname()
host = socket.gethostbyname(host)
if isinstance(target, Screen): screen = target.id()
# throw away all options that aren't for us
for o in list(opts):
loc = o[0]
if not loc: continue
# {host}:{display}.{screen}[target_type:target_id]
m = re.match('(([\w\.]*):)?(\d+)(\.(\d+))?(\[(\w+):(\d+)\])?$',
loc)
if m:
chost, cdno, cscreen = m.group(2), m.group(3), m.group(5)
ctargettype, ctargetval = m.group(7), m.group(8)
if chost: chost = socket.gethostbyname(chost)
if (not chost or chost==host) and \
(not cdno or int(cdno)==int(dno)) and \
(not cscreen or int(cscreen)==int(screen)) and \
(not ctargettype or \
(ctargettype=='gpu' and isinstance(target, GPU)) or \
(ctargettype=='screen' and isinstance(target, Screen))
) and \
(not ctargetval or ctargetval==target.id()):
# everything matches, keep
continue
else:
# TODO warn
pass
# no match, remove opts from list
opts.remove(o)
# return
if len(opts) > 0: return type(opts[0][3])
else: return None
def init_NV_CONTROL(self):
'''Connect to X and confirm NV-CONTROL. Raise KeyError is NV-CONTROL
not found, or raise ValueError is buggy NV-CONTROL (minor 8 or 9) is
found.'''
name, host, displayno, self.xscreen = xnet.get_X_display()
self.xsock, self.xconn = minx.XConnect()
try:
NVCtrl = minx.XQueryExtension(self.xsock, 'NV-CONTROL')
self.opcode = NVCtrl.major_opcode
except Exception, e:
self.xsock.close()
raise e
def init_NV_CONTROL(self):
"""Connect to X and confirm NV-CONTROL. Raise KeyError is NV-CONTROL
not found, or raise ValueError is buggy NV-CONTROL (minor 8 or 9) is
found."""
name, host, displayno, self.xscreen = xnet.get_X_display()
self.xsock, self.xconn = minx.XConnect()
try:
NVCtrl = minx.XQueryExtension(self.xsock, "NV-CONTROL")
self.opcode = NVCtrl.major_opcode
except Exception, e:
self.xsock.close()
raise e
def init_NV_CONTROL(self):
'''Connect to X and confirm NV-CONTROL. Raise KeyError is NV-CONTROL
not found, or raise ValueError is buggy NV-CONTROL (minor 8 or 9) is
found.'''
name, host, displayno, self.xscreen = xnet.get_X_display()
self.xsock, self.xconn = minx.XConnect()
try:
NVCtrl = minx.XQueryExtension(self.xsock, 'NV-CONTROL')
self.opcode = NVCtrl.major_opcode
except Exception as e:
self.xsock.close()
raise e
if not NVCtrl.present:
self.xsock.close()
self.xsock = None
raise KeyError( 'NV-CONTROL extension not found, probably not an nVidia card' )
version = self.get_version()
if version[1] == 8 or version[1] == 9:
self.xsock.close()
raise ValueError( 'buggy NV-CONTROL extension (arg swap bug): '+'.'.join(version) )
def query(self, type, option, target=None, device=None):
"""retrieve the value from an option for a target. If target is None,
the first found target is found. Device should only be specified
for options that require one. If the specified device is not found,
the value of the option without a device specification is returned,
if present. This is how nvidia-settings behaves if I'm correct.
Returns first option found, or None if not found. The option is
cast to type on success (so that you don't have to check for None
and then cast it).
Only options for the X display are found.
TODO: make more specific targets in configfile get precedence."""
# option name
opts = filter(lambda x: x[1] == option, self._opts)
# device
# TODO it's unclear if multiple devices may be specified for a single
# option in the configuration file
if device:
optsdfl = filter(lambda x: not x[2], opts)
opts = filter(lambda x: x[2] == device, opts)
if not opts:
opts = optsdfl
if not target:
target = Screen(0)
# target: only current host for display
d, host, dno, screen = xnet.get_X_display()
if not host:
host = socket.gethostname()
host = socket.gethostbyname(host)
if isinstance(target, Screen):
screen = target.id()
# throw away all options that aren't for us
for o in list(opts):
loc = o[0]
if not loc:
continue
# {host}:{display}.{screen}[target_type:target_id]
m = re.match("(([\w\.]*):)?(\d+)(\.(\d+))?(\[(\w+):(\d+)\])?$", loc)
if m:
chost, cdno, cscreen = m.group(2), m.group(3), m.group(5)
ctargettype, ctargetval = m.group(7), m.group(8)
if chost:
chost = socket.gethostbyname(chost)
if (
(not chost or chost == host)
and (not cdno or int(cdno) == int(dno))
and (not cscreen or int(cscreen) == int(screen))
and (
not ctargettype
or (ctargettype == "gpu" and isinstance(target, GPU))
or (ctargettype == "screen" and isinstance(target, Screen))
)
and (not ctargetval or ctargetval == target.id())
):
# everything matches, keep
continue
else:
# TODO warn
pass
# no match, remove opts from list
opts.remove(o)
# return
if len(opts) > 0:
return type(opts[0][3])
else:
return None
