class StatusFile(object):
@staticmethod
def filename():
return "STATUS"
def __init__(self, tipi_io):
self.tipi_io = tipi_io
self.tipiStatus = []
self.recordNo = 0
def getRecNo(self, pab):
readRec = recordNumber(pab)
if readRec != 0:
self.recordNo = readRec
return self.recordNo
def handle(self, pab, devname):
op = opcode(pab)
if op == OPEN:
self.open(pab, devname)
elif op == CLOSE:
self.close(pab, devname)
elif op == READ:
self.read(pab, devname)
elif op == STATUS:
self.status(pab, devname)
else:
logger.warn("Unhandled opcode %d for %s", op, devname)
self.tipi_io.send([EOPATTR])
def close(self, pab, devname):
logger.info("close %s", devname)
self.tipi_io.send([SUCCESS])
def open(self, pab, devname):
logger.info("open %s", devname)
if mode(pab) == INPUT:
if dataType(pab) == DISPLAY:
if recordLength(pab) == 0 or recordLength(pab) == 80:
self.tipi_io.send([SUCCESS])
self.tipi_io.send([80])
self.tipiStatus = Status()
self.recordNo = 0
return
self.tipi_io.send([EOPATTR])
def read(self, pab, devname):
logger.info("read %s", devname)
if mode(pab) == INPUT:
if dataType(pab) == DISPLAY:
readRec = self.getRecNo(pab)
if readRec >= self.tipiStatus.len():
self.tipi_io.send([EEOF])
return
else:
fdata = bytearray(self.tipiStatus.record(readRec), 'ascii')
self.tipi_io.send([SUCCESS])
self.tipi_io.send(fdata)
self.recordNo += 1
return
self.tipi_io.send([EOPATTR])
def status(self, pab, devname):
logger.info("status %s", devname)
if mode(pab) == INPUT:
if dataType(pab) == DISPLAY:
self.tipi_io.send([SUCCESS])
statbyte = STVARIABLE
readRec = self.getRecNo(pab)
if readRec >= self.tipiStatus.len():
statbyte |= STLEOF
self.tipi_io.send([statbyte])
return
self.tipi_io.send([EOPATTR])
