"""
Class for netdevsim bus device and its attributes.
"""
+ @staticmethod
+ def ctrl_write(path, val):
+ fullpath = os.path.join("/sys/bus/netdevsim/", path)
+ try:
+ with open(fullpath, "w") as f:
+ f.write(val)
+ except OSError as e:
+ log("WRITE %s: %r" % (fullpath, val), -e.errno)
+ raise e
+ log("WRITE %s: %r" % (fullpath, val), 0)
def __init__(self, port_count=1):
addr = 0
while True:
try:
- with open("/sys/bus/netdevsim/new_device", "w") as f:
- f.write("%u %u" % (addr, port_count))
+ self.ctrl_write("new_device", "%u %u" % (addr, port_count))
except OSError as e:
if e.errno == errno.ENOSPC:
addr += 1
return progs
def remove(self):
- with open("/sys/bus/netdevsim/del_device", "w") as f:
- f.write("%u" % self.addr)
+ self.ctrl_write("del_device", "%u" % (self.addr, ))
devs.remove(self)
def remove_nsim(self, nsim):
self.nsims.remove(nsim)
- with open("/sys/bus/netdevsim/devices/netdevsim%u/del_port" % self.addr ,"w") as f:
- f.write("%u" % nsim.port_index)
+ self.ctrl_write("devices/netdevsim%u/del_port" % (self.addr, ),
+ "%u" % (nsim.port_index, ))
class NetdevSim:
"""