io_helpers.py 文件源码

def plot(self):
        if _domainless._DEBUG == True:
            print "Plot:plot()"

        # Error checking before launching plot
        if self.usesPortIORString == None:
            raise AssertionError, "Plot:plot() ERROR - usesPortIORString not set ... must call connect() on this object from another component"
        if self._usesPortName == None:
            raise AssertionError, "Plot:plot() ERROR - usesPortName not set ... must call connect() on this object from another component"
        if self._dataType == None:
            raise AssertionError, "Plot:plot() ERROR - dataType not set ... must call connect() on this object from another component"

        plotCommand = str(self._eclipsePath) + "/bin/plotter.sh -portname " + str(self._usesPortName) + " -repid " + str(self._dataType) + " -ior " + str(self.usesPortIORString)
        if _domainless._DEBUG == True:
            print "Plot:plotCommand " + str(plotCommand)
        args = _shlex.split(plotCommand)
        if _domainless._DEBUG == True:
            print "Plot:args " + str(args)
        try:
            dev_null = open('/dev/null','w')
            sub_process = _subprocess.Popen(args,stdout=dev_null,preexec_fn=_os.setpgrp)
            pid = sub_process.pid
            self._processes[pid] = sub_process
        except Exception, e:
            raise AssertionError, "Plot:plot() Failed to launch plotting due to %s" % ( e)