def __init__(self, vport_name):
if self.is_windows:
from WinFile import WinFile
self._vport = WinFile(vport_name)
else:
self._vport = os.open(vport_name, os.O_RDWR)
self._buffer = ''
def __init__(self, vport_name):
if self.is_windows:
from WinFile import WinFile
self._vport = WinFile(vport_name)
else:
self._vport = os.open(vport_name, os.O_RDWR)
self._buffer = ''
def __init__(self, vport_name):
if self.is_test:
from test_port import get_test_port
self._vport = get_test_port(vport_name)
self._read = self._vport.read
self._write = self._vport.write
elif self.is_windows:
from WinFile import WinFile
self._vport = WinFile(vport_name)
self._read = self._vport.read
self._write = self._vport.write
else:
self._vport = os.open(vport_name, os.O_RDWR)
self._read = self._os_read
self._write = self._os_write
def __init__(self, vport_prefix):
if self.is_test:
from test_port import get_test_port
self._vport = get_test_port(vport_prefix)
self._read = self._vport.read
self._write = self._vport.write
elif self.is_windows:
from WinFile import WinFile
self._vport = WinFile(get_vports(vport_prefix))
self._read = self._vport.read
self._write = self._vport.write
else:
current_port, legacy_port = get_vports(vport_prefix)
vport_name = current_port
if os.path.exists(legacy_port):
vport_name = legacy_port
self._vport = os.open(vport_name, os.O_RDWR)
self._read = self._os_read
self._write = self._os_write
class VirtIoChannel:
# Python on Windows 7 return 'Microsoft' rather than 'Windows' as documented.
is_windows = (platform.system() == 'Windows') or (platform.system() == 'Microsoft')
def __init__(self, vport_name):
if self.is_windows:
from WinFile import WinFile
self._vport = WinFile(vport_name)
else:
self._vport = os.open(vport_name, os.O_RDWR)
self._buffer = ''
def _readbuffer(self):
if self.is_windows:
buffer = self._vport.read(4096)
else:
buffer = os.read(self._vport, 4096)
if buffer:
self._buffer += buffer
else:
# read() returns immediately (non-blocking) if no one is
# listening on the other side of the virtio-serial port.
# So in order not to be in a tight-loop and waste CPU
# time, we just sleep for a while and hope someone will
# be there when we will awake from our nap.
time.sleep(1)
def _readline(self):
newline = self._buffer.find('\n')
while newline < 0:
self._readbuffer()
newline = self._buffer.find('\n')
if newline >= 0:
line, self._buffer = self._buffer.split('\n', 1)
else:
line = None
return line
def _parseLine(self, line):
try:
args = json.loads(line.decode('utf8'))
name = args['__name__']
del args['__name__']
except:
name = None
args = None
return (name, args)
def read(self):
return self._parseLine(self._readline())
def write(self, name, args = {}):
if not isinstance(name, str):
raise TypeError("1nd arg must be a str.")
if not isinstance(args, dict):
raise TypeError("2nd arg must be a dict.")
args['__name__'] = name
message = (json.dumps(args) + '\n').encode('utf8')
while len(message) > 0:
if self.is_windows:
written = self._vport.write(message)
else:
written = os.write(self._vport, message)
message = message[written:]
class VirtIoChannel:
# Python on Windows 7 return 'Microsoft' rather than 'Windows' as documented.
is_windows = (platform.system() == 'Windows') or (platform.system()
== 'Microsoft')
def __init__(self, vport_name):
if self.is_windows:
from WinFile import WinFile
self._vport = WinFile(vport_name)
else:
self._vport = os.open(vport_name, os.O_RDWR)
self._buffer = ''
def _readbuffer(self):
if self.is_windows:
buffer = self._vport.read(4096)
else:
buffer = os.read(self._vport, 4096)
if buffer:
self._buffer += buffer
else:
# read() returns immediately (non-blocking) if no one is
# listening on the other side of the virtio-serial port.
# So in order not to be in a tight-loop and waste CPU
# time, we just sleep for a while and hope someone will
# be there when we will awake from our nap.
time.sleep(1)
def _readline(self):
newline = self._buffer.find('\n')
while newline < 0:
self._readbuffer()
newline = self._buffer.find('\n')
if newline >= 0:
line, self._buffer = self._buffer.split('\n', 1)
else:
line = None
return line
def _parseLine(self, line):
try:
args = json.loads(line.decode('utf8'))
name = args['__name__']
del args['__name__']
except:
name = None
args = None
return (name, args)
def read(self):
return self._parseLine(self._readline())
def write(self, name, args={}):
if not isinstance(name, str):
raise TypeError("1nd arg must be a str.")
if not isinstance(args, dict):
raise TypeError("2nd arg must be a dict.")
args['__name__'] = name
message = (json.dumps(args) + '\n').encode('utf8')
while len(message) > 0:
if self.is_windows:
written = self._vport.write(message)
else:
written = os.write(self._vport, message)
message = message[written:]
