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Ack.
On Wed, 12 May 2010, Radek Vykydal wrote:
Writing the files so often is not necessary, and can cause
timing issues (NM itself updates the files after we write
them out) which can result in duplicated connections nm-c-e
list. Write the file only if some value in NetworkDevice
object has been actually changed.
---
gui.py | 7 ++++---
network.py | 48 +++++++++++++++++++++++++++++++++++-------------
2 files changed, 39 insertions(+), 16 deletions(-)
diff --git a/gui.py b/gui.py
index 29d8810..6f0d6f9 100755
--- a/gui.py
+++ b/gui.py
@@ -982,11 +982,11 @@ class InstallInterface(InstallInterfaceBase):
self.anaconda.id.network.updateActiveDevices([install_device])
# we might want to do this only once
- # NOTE: For wireless, we need supplicant to go to ready state,
- # that means to get the wireless device managed by NM
- # - we do it above in setNMControlledDevices.
# TODORV: put into Network objects
if network.hasWirelessDev():
+ # NOTE: For wireless, we need supplicant to go to ready state,
+ # that means to get the wireless device managed by NM
+ self.anaconda.id.network.writeIfcfgFiles()
w = self.anaconda.intf.waitWindow(_("Wireless setup"),
_("Scanning access points for wireless devices"))
# get available wireless APs
@@ -998,6 +998,7 @@ class InstallInterface(InstallInterfaceBase):
dev_ssids = selectSSIDsDialog(dev_all_ssids) or dev_all_ssids
self.anaconda.id.network.updateIfcfgsSSID(dev_ssids)
+ self.anaconda.id.network.writeIfcfgFiles()
network.logIfcfgFiles(header="========== before nm-c-e run\n")
runNMCE(self.anaconda)
network.logIfcfgFiles(header="========== after nm-c-e run\n")
diff --git a/network.py b/network.py
index d3686a8..e2308e8 100644
--- a/network.py
+++ b/network.py
@@ -280,6 +280,7 @@ class NetworkDevice(IfcfgFile):
if iface.startswith('ctc'):
self.info["TYPE"] = "CTC"
self.wepkey = ""
+ self._dirty = False
def clear(self):
IfcfgFile.clear(self)
@@ -310,9 +311,27 @@ class NetworkDevice(IfcfgFile):
def loadIfcfgFile(self):
self.clear()
IfcfgFile.read(self)
-
- def writeIfcfgFile(self, dir=None):
- IfcfgFile.write(self, dir)
+ self.log("NetworkDevice read from %s\n" % self.path)
+ self._dirty = False
+
+ def writeIfcfgFile(self):
+ # Write out the file only if there is a key whose
+ # value has been changed since last load of ifcfg file.
+ if self._dirty:
+ IfcfgFile.write(self)
+ self.log("NetworkDevice written to %s\n" % self.path)
+ self._dirty = False
+
+ def set(self, *args):
+ # If we are changing value of a key set _dirty flag
+ # informing that ifcfg file needs to be synced.
+ for (key, data) in args:
+ if self.get(key) != data:
+ break
+ else:
+ return
+ IfcfgFile.set(self, *args)
+ self._dirty = True
@property
def keyfilePath(self):
@@ -392,8 +411,12 @@ class Network:
devhash = isys.getDeviceProperties(dev=None)
for iface in devhash.keys():
device = NetworkDevice(netscriptsDir, iface, logfile=ifcfgLogFile)
- device.loadIfcfgFile()
- device.log("===== Network.update\n")
+ if os.access(device.path, os.R_OK):
+ device.loadIfcfgFile()
+ else:
+ log.info("Network.update(): %s file not found" %
+ device.path)
+ continue
if device.get('DOMAIN'):
self.domains.append(device.get('DOMAIN'))
@@ -473,6 +496,12 @@ class Network:
return ip
+ # Note that the file is written-out only if there is a value
+ # that has changed.
+ def writeIfcfgFiles(self):
+ for device in self.netdevices.values():
+ device.writeIfcfgFile()
+
# devices == None => set for all
def setNMControlledDevices(self, devices=None):
for devname, device in self.netdevices.items():
@@ -480,8 +509,6 @@ class Network:
device.set(('NM_CONTROLLED', 'no'))
else:
device.set(('NM_CONTROLLED', 'yes'))
- device.writeIfcfgFile()
- device.log_file("device set to be nm controlled\n")
# devices == None => set for all
def updateActiveDevices(self, devices=None):
@@ -490,8 +517,6 @@ class Network:
device.set(('ONBOOT', 'no'))
else:
device.set(('ONBOOT', 'yes'))
- device.writeIfcfgFile()
- device.log_file("updateActiveDevices\n")
def getOnbootIfaces(self):
ifaces = []
@@ -504,8 +529,6 @@ class Network:
for devname, device in self.netdevices.items():
if devname in devssids.keys():
device.set(('ESSID', devssids[devname][0]))
- device.writeIfcfgFile()
- device.log_file("updateIfcfgSSID\n")
def getSSIDs(self):
return getSSIDs(self.netdevices.keys())
@@ -648,8 +671,7 @@ class Network:
dev.set(('NM_CONTROLLED', 'no'))
break
- dev.writeIfcfgFile(netscriptsDir)
- dev.log_file("===== write\n")
+ dev.writeIfcfgFile()
if dev.wepkey:
dev.writeWepkeyFile(dir=netscriptsDir, overwrite=False)
- --
David Cantrell <dcantrell@xxxxxxxxxx>
Red Hat / Honolulu, HI
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