+ self.limits_changed = False
+ self.config_file = "/etc/vservers/%s.conf" % name
+ self.dir = "%s/%s" % (vserverimpl.VSERVER_BASEDIR, name)
+ if not (os.path.isdir(self.dir) and
+ os.access(self.dir, os.R_OK | os.W_OK | os.X_OK)):
+ raise NoSuchVServer, "no such vserver: " + name
+ self.config = {}
+ for config_file in ["/etc/vservers.conf", self.config_file]:
+ try:
+ self.config.update(self.__read_config_file(config_file))
+ except IOError, ex:
+ if ex.errno != errno.ENOENT:
+ raise
+ self.remove_caps = ~vserverimpl.CAP_SAFE;
+ if vm_id == None:
+ vm_id = int(self.config['S_CONTEXT'])
+ self.ctx = vm_id
+ self.vm_running = vm_running
+
+ # For every resource key listed in the limit table, add in a
+ # new method with which one can get/set the resource's hard,
+ # soft, minimum limits.
+ limits = {"CPU": RLIMIT_CPU,
+ "RSS": RLIMIT_RSS,
+ "NPROC": RLIMIT_NPROC,
+ "NOFILE": RLIMIT_NOFILE,
+ "MEMLOCK": RLIMIT_MEMLOCK,
+ "AS": RLIMIT_AS,
+ "LOCKS": RLIMIT_LOCKS,
+ "SIGPENDING": RLIMIT_SIGPENDING,
+ "MSGQUEUE": RLIMIT_MSGQUEUE,
+ "NSOCK": VLIMIT_NSOCK,
+ "OPENFD": VLIMIT_OPENFD,
+ "ANON": VLIMIT_ANON,
+ "SHMEM": VLIMIT_SHMEM}
+ for meth in limits.keys():
+ resource_type = limits[meth]
+ func = lambda \
+ hard=VC_LIM_KEEP,\
+ soft=VC_LIM_KEEP,\
+ minimum=VC_LIM_KEEP:\
+ self.__set_vserver_limit(resource_type,\
+ hard, \
+ soft,\
+ minimum)
+ self.__dict__["set_%s_limit"%meth] = func
+
+ func = lambda \
+ hard=VC_LIM_KEEP,\
+ soft=VC_LIM_KEEP,\
+ minimum=VC_LIM_KEEP:\
+ self.__set_vserver_config(meth, resource_type, \
+ hard, \
+ soft,\
+ minimum)
+ self.__dict__["set_%s_config"%meth] = func
+
+ func = lambda : self.__get_vserver_limit(resource_type)
+ self.__dict__["get_%s_limit"%meth] = func
+
+ func = lambda : self.__get_vserver_config(meth,resource_type)
+ self.__dict__["get_%s_config"%meth] = func
+
+ def have_limits_changed(self):
+ return self.limits_changed
+
+ def __set_vserver_limit(self,resource_type,hard,soft,minimum):
+ """Generic set resource limit function for vserver"""
+ if self.is_running():
+ changed = False
+ old_hard, old_soft, old_minimum = self.__get_vserver_limit(resource_type)
+ if old_hard != VC_LIM_KEEP and old_hard <> hard: changed = True
+ if old_soft != VC_LIM_KEEP and old_soft <> soft: changed = True
+ if old_minimum != VC_LIM_KEEP and old_minimum <> minimum: changed = True
+ self.limits_changed = self.limits_changed or changed
+ ret = vserverimpl.setrlimit(self.ctx,resource_type,hard,soft,minimum)
+
+ def __set_vserver_config(self,meth,resource_type,hard,soft,minimum):
+ """Generic set resource limit function for vserver"""
+ resources = {}
+ if hard <> VC_LIM_KEEP:
+ resources["VS_%s_HARD"%meth] = hard
+ if soft <> VC_LIM_KEEP:
+ resources["VS_%s_SOFT"%meth] = soft
+ if minimum <> VC_LIM_KEEP:
+ resources["VS_%s_MINIMUM"%meth] = minimum
+ if len(resources)>0:
+ self.update_resources(resources)
+ self.__set_vserver_limit(resource_type,hard,soft,minimum)
+
+ def __get_vserver_limit(self,resource_type):
+ """Generic get resource configuration function for vserver"""
+ if self.is_running():
+ ret = vserverimpl.getrlimit(self.ctx,resource_type)
+ else:
+ ret = __get_vserver_config(meth,resource_type)
+ return ret
+
+ def __get_vserver_config(self,meth,resource_type):
+ """Generic get resource configuration function for vserver"""
+ hard = int(self.config.get("VS_%s_HARD"%meth,VC_LIM_KEEP))
+ soft = int(self.config.get("VS_%s_SOFT"%meth,VC_LIM_KEEP))
+ minimum = int(self.config.get("VS_%s_MINIMUM"%meth,VC_LIM_KEEP))
+ return (hard,soft,minimum)
+
+ def set_WHITELISTED_config(self,whitelisted):
+ resources = {'VS_WHITELISTED': whitelisted}
+ self.update_resources(resources)