applied the except and raise fixers to the master branch to close the gap with py3
[nepi.git] / src / nepi / resources / linux / ns3 / ns3simulation.py
index 9e1ee51..0a44d7a 100644 (file)
@@ -3,9 +3,8 @@
 #    Copyright (C) 2014 INRIA
 #
 #    This program is free software: you can redistribute it and/or modify
-#    it under the terms of the GNU General Public License as published by
-#    the Free Software Foundation, either version 3 of the License, or
-#    (at your option) any later version.
+#    it under the terms of the GNU General Public License version 2 as
+#    published by the Free Software Foundation;
 #
 #    This program is distributed in the hope that it will be useful,
 #    but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ -20,7 +19,7 @@
 from nepi.execution.attribute import Attribute, Flags, Types
 from nepi.execution.trace import Trace, TraceAttr
 from nepi.execution.resource import ResourceManager, clsinit_copy, \
-        ResourceState, reschedule_delay
+        ResourceState, ResourceFactory
 from nepi.resources.linux.application import LinuxApplication
 from nepi.util.timefuncs import tnow, tdiffsec
 from nepi.resources.ns3.ns3simulation import NS3Simulation
@@ -34,7 +33,7 @@ import threading
 
 @clsinit_copy
 class LinuxNS3Simulation(LinuxApplication, NS3Simulation):
-    _rtype = "LinuxNS3Simulation"
+    _rtype = "linux::ns3::Simulation"
 
     @classmethod
     def _register_attributes(cls):
@@ -73,6 +72,13 @@ class LinuxNS3Simulation(LinuxApplication, NS3Simulation):
             type = Types.Bool,
             flags = Flags.Design)
 
+        enable_dump = Attribute("enableDump",
+            "Enable dumping the remote executed ns-3 commands to a script "
+            "in order to later reproduce and debug the experiment",
+            type = Types.Bool,
+            default = False,
+            flags = Flags.Design)
+
         build_mode = Attribute("buildMode",
             "Mode used to build ns-3 with waf. One if: debug, release, oprimized ",
             default = "optimized", 
@@ -82,19 +88,20 @@ class LinuxNS3Simulation(LinuxApplication, NS3Simulation):
 
         ns3_version = Attribute("ns3Version",
             "Version of ns-3 to install from nsam repo",
-            #default = "ns-3.19", 
-            default = "ns-3-dev", 
-            flags = Flags.Design)
-
-        enable_dce = Attribute("enableDCE",
-            "Install DCE source code",
-            default = False, 
-            type = Types.Bool,
+            default = "ns-3.20", 
+            #default = "ns-3-dev", 
             flags = Flags.Design)
 
         pybindgen_version = Attribute("pybindgenVersion",
             "Version of pybindgen to install from bazar repo",
             default = "868", 
+            #default = "876", 
+            flags = Flags.Design)
+
+        dce_version = Attribute("dceVersion",
+            "Version of dce to install from nsam repo (tag branch for repo)",
+            #default = "dce-1.3", 
+            default = "dce-dev", 
             flags = Flags.Design)
 
         populate_routing_tables = Attribute("populateRoutingTables",
@@ -103,16 +110,22 @@ class LinuxNS3Simulation(LinuxApplication, NS3Simulation):
             type = Types.Bool,
             flags = Flags.Design)
 
+        stoptime = Attribute("StopTime",
+            "Time at which the simulation will stop",
+            flags = Flags.Design)
+
         cls._register_attribute(impl_type)
         cls._register_attribute(sched_type)
         cls._register_attribute(check_sum)
         cls._register_attribute(ns_log)
+        cls._register_attribute(enable_dump)
         cls._register_attribute(verbose)
         cls._register_attribute(build_mode)
         cls._register_attribute(ns3_version)
         cls._register_attribute(pybindgen_version)
+        cls._register_attribute(dce_version)
         cls._register_attribute(populate_routing_tables)
-        cls._register_attribute(enable_dce)
+        cls._register_attribute(stoptime)
 
     def __init__(self, ec, guid):
         LinuxApplication.__init__(self, ec, guid)
@@ -121,13 +134,8 @@ class LinuxNS3Simulation(LinuxApplication, NS3Simulation):
         self._client = None
         self._home = "ns3-simu-%s" % self.guid
         self._socket_name = "ns3-%s.sock" % os.urandom(4).encode('hex')
-        self._dce_manager_helper_uuid = None
-        self._dce_application_helper_uuid = None
-        
-        # Lock used to synchronize usage of DceManagerHelper 
-        self.dce_manager_lock = threading.Lock()
-        # Lock used to synchronize usage of DceApplicationHelper
-        self.dce_application_lock = threading.Lock()
+        self._enable_dce = None
+        self._dce_helper = None
 
     @property
     def socket_name(self):
@@ -137,21 +145,19 @@ class LinuxNS3Simulation(LinuxApplication, NS3Simulation):
     def remote_socket(self):
         return os.path.join(self.run_home, self.socket_name)
 
-    @property
-    def dce_manager_helper_uuid(self):
-        return self._dce_manager_helper_uuid
-
-    @property
-    def dce_application_helper_uuid(self):
-        return self._dce_application_helper_uuid
-
-    @property
-    def ns3_build_home(self):
-        return os.path.join(self.node.bin_dir, "ns-3", self.get("ns3Version"), 
-                self.get("buildMode"), "build")
-
     def trace(self, name, attr = TraceAttr.ALL, block = 512, offset = 0):
-        self._client.flush() 
+        # stout needs to get flushed on the ns-3 server side, else we will 
+        # get an empty stream. We try twice to retrieve the stream
+        # if we get empty stdout since the stream might not be
+        # flushed immediately.
+        if name.endswith("stdout"):
+            self._client.flush() 
+            result = LinuxApplication.trace(self, name, attr, block, offset)
+            if result:
+                return result
+            # Let the stream be flushed
+            time.sleep(1)
+
         return LinuxApplication.trace(self, name, attr, block, offset)
 
     def upload_sources(self):
@@ -165,6 +171,14 @@ class LinuxNS3Simulation(LinuxApplication, NS3Simulation):
                 os.path.join(self.node.src_dir, "ns3wrapper", "ns3wrapper.py"),
                 overwrite = False)
 
+        # upload ns3 wrapper debug python script
+        ns3_wrapper_debug = os.path.join(os.path.dirname(__file__), "..", "..", "ns3", 
+                "ns3wrapper_debug.py")
+
+        self.node.upload(ns3_wrapper_debug,
+                os.path.join(self.node.src_dir, "ns3wrapper", "ns3wrapper_debug.py"),
+                overwrite = False)
+
         # upload ns3_server python script
         ns3_server = os.path.join(os.path.dirname(__file__), "..", "..", "ns3",
                 "ns3server.py")
@@ -214,6 +228,9 @@ class LinuxNS3Simulation(LinuxApplication, NS3Simulation):
         # Run the ns3wrapper 
         self._run_in_background()
 
+        # Wait until the remote socket is created
+        self.wait_remote_socket()
+
     def configure(self):
         if self.has_changed("simulatorImplementationType"):
             simu_type = self.get("simulatorImplementationType")
@@ -230,16 +247,12 @@ class LinuxNS3Simulation(LinuxApplication, NS3Simulation):
             stype = self.create("StringValue", sched_type)
             self.invoke(GLOBAL_VALUE_UUID, "Bind", "SchedulerType", btrue)
         
-        if self.get("enableDCE"):
-            self._dce_manager_helper_uuid = self.create("DceManagerHelper")
-            self._dce_application_helper_uuid = self.create("DceApplicationHelper")
-
     def do_deploy(self):
         if not self.node or self.node.state < ResourceState.READY:
             self.debug("---- RESCHEDULING DEPLOY ---- node state %s " % self.node.state )
             
             # ccnd needs to wait until node is deployed and running
-            self.ec.schedule(reschedule_delay, self.deploy)
+            self.ec.schedule(self.reschedule_delay, self.deploy)
         else:
             if not self.get("command"):
                 self.set("command", self._start_command)
@@ -288,20 +301,25 @@ class LinuxNS3Simulation(LinuxApplication, NS3Simulation):
             if self.get("populateRoutingTables") == True:
                 self.invoke(IPV4_GLOBAL_ROUTING_HELPER_UUID, "PopulateRoutingTables")
 
-            self._client.start() 
+            time = self.get("StopTime")
+            if time:
+                self._client.stop(time=time) 
+
+            self._client.start()
 
             self.set_started()
         else:
             msg = " Failed to execute command '%s'" % command
             self.error(msg, out, err)
-            raise RuntimeError, msg
+            raise RuntimeError(msg)
 
     def do_stop(self):
         """ Stops simulation execution
 
         """
         if self.state == ResourceState.STARTED:
-            self._client.stop() 
+            if not self.get("StopTime"):
+                self._client.stop() 
             self.set_stopped()
 
     def do_release(self):
@@ -317,6 +335,50 @@ class LinuxNS3Simulation(LinuxApplication, NS3Simulation):
         
         super(LinuxApplication, self).do_release()
 
+    @property
+    def state(self):
+        super(LinuxApplication, self).state
+        
+        if self._state == ResourceState.STARTED:
+            try:
+                is_finished = self.invoke(SIMULATOR_UUID, "isFinished")
+                
+                if is_finished:
+                    self.set_stopped()
+            except:
+                msg = "Simulator failed. Can not retrieve state"
+                out = ""
+
+                import traceback
+                err = traceback.format_exc()
+                self.error(msg, out, err)
+                self.do_fail()
+
+        return self._state
+
+    @property
+    def enable_dce(self):
+        if self._enable_dce is None:
+            from nepi.resources.ns3.ns3dceapplication import NS3BaseDceApplication
+            rclass = ResourceFactory.get_resource_type(
+                    NS3BaseDceApplication.get_rtype())
+            
+            self._enable_dce = False
+            for guid in self.ec.resources:
+                rm = self.ec.get_resource(guid)
+                if isinstance(rm, rclass):
+                    self._enable_dce = True
+
+                    from nepi.resources.ns3.ns3dcehelper import NS3DceHelper
+                    self._dce_helper = NS3DceHelper(self)
+                    break
+
+        return self._enable_dce
+
+    @property
+    def dce_helper(self):
+        return self._dce_helper
+        
     @property
     def _start_command(self):
         command = [] 
@@ -330,6 +392,9 @@ class LinuxNS3Simulation(LinuxApplication, NS3Simulation):
         if ns_log:
             command.append("-L '%s'" % ns_log)
 
+        if self.get("enableDump"):
+            command.append("-D")
+
         if self.get("verbose"):
             command.append("-v")
 
@@ -354,80 +419,134 @@ class LinuxNS3Simulation(LinuxApplication, NS3Simulation):
 
     @property
     def dce_repo(self):
-        #return "http://code.nsnam.org/ns-3-dce"
-        return "http://code.nsnam.org/epmancini/ns-3-dce"
+        return "http://code.nsnam.org/ns-3-dce"
+        #eturn "http://code.nsnam.org/epmancini/ns-3-dce"
 
     @property
-    def _build(self):
-        # If the user defined local sources for ns-3, we uncompress the sources
-        # on the remote sources directory. Else we clone ns-3 from the official repo.
+    def dce_version(self):
+        dce_version = self.get("dceVersion")
+        return dce_version or "dce-dev"
+
+    @property
+    def ns3_build_location(self):
+        location = "${BIN}/ns-3/%(ns3_version)s%(dce_version)s/%(build_mode)s/build" \
+                    % {
+                        "ns3_version": self.get("ns3Version"),
+                        "dce_version": "-%s" % self.get("dceVersion") \
+                                if self.enable_dce else "", 
+                        "build_mode": self.get("buildMode"),
+                      }
+
+        return location
+
+    @property
+    def ns3_src_location(self):
+        location = "${SRC}/ns-3/%(ns3_version)s" \
+                    % {
+                        "ns3_version": self.get("ns3Version"),
+                      }
+
+        return location
+    @property
+    def dce_src_location(self):
+        location = "${SRC}/ns-3-dce/%(dce_version)s" \
+                   % {
+                        "dce_version": self.get("dceVersion"),
+                     }
+
+        return location
+
+    @property
+    def _clone_ns3_command(self):
         source = self.get("sources")
+        
         if not source:
-            clone_ns3_cmd = "hg clone %(ns3_repo)s/%(ns3_version)s ${SRC}/ns-3/%(ns3_version)s" \
+            clone_ns3_cmd = "hg clone %(ns3_repo)s/%(ns3_version)s %(ns3_src)s" \
                     % {
-                        'ns3_version': self.get("ns3Version"),
-                        'ns3_repo':  self.ns3_repo,       
+                        "ns3_version": self.get("ns3Version"),
+                        "ns3_repo": self.ns3_repo,  
+                        "ns3_src": self.ns3_src_location,
                       }
         else:
             if source.find(".tar.gz") > -1:
                 clone_ns3_cmd = ( 
                             "tar xzf ${SRC}/ns-3/%(basename)s " 
-                            " --strip-components=1 -C ${SRC}/ns-3/%(ns3_version)s "
+                            " --strip-components=1 -C %(ns3_src)s"
                             ) % {
-                                'basename': os.path.basename(source),
-                                'ns3_version': self.get("ns3Version"),
+                                "basename": os.path.basename(source),
+                                "ns3_src": self.ns3_src_location,
                                 }
             elif source.find(".tar") > -1:
                 clone_ns3_cmd = ( 
                             "tar xf ${SRC}/ns-3/%(basename)s " 
-                            " --strip-components=1 -C ${SRC}/ns-3/%(ns3_version)s "
+                            " --strip-components=1 -C %(ns3_src)s"
                             ) % {
-                                'basename': os.path.basename(source),
-                                'ns3_version': self.get("ns3Version"),
+                                "basename": os.path.basename(source),
+                                "ns3_src": self.ns3_src_location,
                                 }
             elif source.find(".zip") > -1:
                 basename = os.path.basename(source)
-                bare_basename = basename.replace(".zip", "") \
-                        .replace(".tar", "") \
-                        .replace(".tar.gz", "")
+                bare_basename = basename.replace(".zip", "") 
 
                 clone_ns3_cmd = ( 
                             "unzip ${SRC}/ns-3/%(basename)s && "
-                            "mv ${SRC}/ns-3/%(bare_basename)s ${SRC}/ns-3/%(ns3_version)s "
+                            "mv ${SRC}/ns-3/%(bare_basename)s %(ns3_src)s"
                             ) % {
-                                'bare_basename': basename_name,
-                                'basename': basename,
-                                'ns3_version': self.get("ns3Version"),
+                                "bare_basename": basename_name,
+                                "basename": basename,
+                                "ns3_src": self.ns3_src_location,
                                 }
 
+        return clone_ns3_cmd
+
+    @property
+    def _clone_dce_command(self):
         clone_dce_cmd = " echo 'DCE will not be built' "
-        if self.get("enableDCE"):
+
+        if self.enable_dce:
+            dce_version = self.dce_version
+            dce_tag = ""
+            if dce_version != "dce-dev":
+                dce_tag = "-r %s" % dce_version
+
             clone_dce_cmd = (
                         # DCE installation
-                        # Test if dce is alredy installed
+                        # Test if dce is alredy cloned
                         " ( "
                         "  ( "
-                        "    ( test -d ${SRC}/dce/ns-3-dce ) "
+                        "    ( test -d %(dce_src)s ) "
                         "   && echo 'dce binaries found, nothing to do'"
                         "  ) "
                         " ) "
                         "  || " 
                         # Get dce source code
                         " ( "
-                        "   mkdir -p ${SRC}/dce && "
-                        "   hg clone %(dce_repo)s ${SRC}/dce/ns-3-dce"
+                        "   mkdir -p %(dce_src)s && "
+                        "   hg clone %(dce_repo)s %(dce_tag)s %(dce_src)s"
                         " ) "
                      ) % {
-                            'dce_repo': self.dce_repo
+                            "dce_repo": self.dce_repo,
+                            "dce_tag": dce_tag,
+                            "dce_src": self.dce_src_location,
                          }
 
+        return clone_dce_cmd
 
-        return (
+    @property
+    def _build(self):
+        # If the user defined local sources for ns-3, we uncompress the sources
+        # on the remote sources directory. Else we clone ns-3 from the official repo.
+        clone_ns3_cmd = self._clone_ns3_command
+        clone_dce_cmd = self._clone_dce_command
+
+        ns3_build_cmd = (
                 # NS3 installation
                 "( "
                 " ( "
-                # Test if ns-3 is alredy installed
-                "  ((( test -d ${SRC}/ns-3/%(ns3_version)s ) || "
+                # Test if ns-3 is alredy cloned
+                "  ((( test -d %(ns3_src)s ) || "
                 "    ( test -d ${NS3BINDINGS:='None'} && test -d ${NS3LIBRARIES:='None'})) "
                 "  && echo 'ns-3 binaries found, nothing to do' )"
                 " ) "
@@ -468,7 +587,7 @@ class LinuxNS3Simulation(LinuxApplication, NS3Simulation):
                 " && "
                 # Get ns-3 source code
                 "  ( "
-                "     mkdir -p ${SRC}/ns-3/%(ns3_version)s && "
+                "     mkdir -p %(ns3_src)s && "
                 "     %(clone_ns3_cmd)s "
                 "  ) "
                 " ) "
@@ -478,58 +597,69 @@ class LinuxNS3Simulation(LinuxApplication, NS3Simulation):
                 "   %(clone_dce_cmd)s "
                 ") "
              ) % { 
-                    'ns3_version': self.get("ns3Version"),
-                    'pybindgen_version': self.get("pybindgenVersion"),
-                    'pygccxml_version': self.pygccxml_version,
-                    'clone_ns3_cmd': clone_ns3_cmd,
-                    'clone_dce_cmd': clone_dce_cmd,
+                    "ns3_src": self.ns3_src_location,
+                    "pybindgen_version": self.get("pybindgenVersion"),
+                    "pygccxml_version": self.pygccxml_version,
+                    "clone_ns3_cmd": clone_ns3_cmd,
+                    "clone_dce_cmd": clone_dce_cmd,
                  }
 
+        return ns3_build_cmd
+
     @property
-    def _install(self):
-        install_dce_cmd = " echo 'DCE will not be installed' "
-        if self.get("enableDCE"):
+    def _install_dce_command(self):
+        install_dce_cmd = " echo 'DCE will not be installed'"
+
+        if self.enable_dce:
             install_dce_cmd = (
                         " ( "
-                        "   ((test -d %(ns3_build_home)s/bin_dce ) && "
+                        "   ((test -d %(ns3_build)s/bin_dce ) && "
                         "    echo 'dce binaries found, nothing to do' )"
                         " ) "
                         " ||" 
                         " (   "
-                         # If not, copy ns-3 build to bin
-                        "  cd ${SRC}/dce/ns-3-dce && "
+                         # If not, copy build to dce
+                        "  cd %(dce_src)s && "
+                        "  rm -rf %(dce_src)s/build && "
                         "  ./waf configure %(enable_opt)s --with-pybindgen=${SRC}/pybindgen/%(pybindgen_version)s "
-                        "  --prefix=%(ns3_build_home)s --with-ns3=%(ns3_build_home)s && "
+                        "  --prefix=%(ns3_build)s --with-ns3=%(ns3_build)s && "
                         "  ./waf build && "
                         "  ./waf install && "
-                        "  mv %(ns3_build_home)s/lib*/python*/site-packages/ns/dce.so %(ns3_build_home)s/lib/python/site-packages/ns/ "
+                        "  [ ! -e %(ns3_build)s/lib/python/site-packages/ns/dce.so ] && "
+                        "   mv %(ns3_build)s/lib*/python*/site-packages/ns/dce.so %(ns3_build)s/lib/python/site-packages/ns/ "
                         " )"
                 ) % { 
-                    'ns3_version': self.get("ns3Version"),
-                    'pybindgen_version': self.get("pybindgenVersion"),
-                    'ns3_build_home': self.ns3_build_home,
-                    'build_mode': self.get("buildMode"),
-                    'enable_opt': "--enable-opt" if  self.get("buildMode") == "optimized" else ""
-                    }
-
-        return (
+                    "pybindgen_version": self.get("pybindgenVersion"),
+                    "enable_opt": "--enable-opt" if  self.get("buildMode") == "optimized" else "",
+                    "ns3_build": self.ns3_build_location,
+                    "dce_src": self.dce_src_location,
+                     }
+
+        return install_dce_cmd
+
+    @property
+    def _install(self):
+        install_dce_cmd = self._install_dce_command
+
+        install_ns3_cmd = (
                  # Test if ns-3 is alredy installed
                 "("
                 " ( "
-                "  ( ( (test -d %(ns3_build_home)s/lib ) || "
+                "  ( ( (test -d %(ns3_build)s/lib ) || "
                 "    (test -d ${NS3BINDINGS:='None'} && test -d ${NS3LIBRARIES:='None'}) ) && "
                 "    echo 'binaries found, nothing to do' )"
                 " ) "
                 " ||" 
                 " (   "
                  # If not, copy ns-3 build to bin
-                "  mkdir -p %(ns3_build_home)s && "
-                "  cd ${SRC}/ns-3/%(ns3_version)s && "
+                "  mkdir -p %(ns3_build)s && "
+                "  cd %(ns3_src)s && "
+                "  rm -rf %(ns3_src)s/build && "
                 "  ./waf configure -d %(build_mode)s --with-pybindgen=${SRC}/pybindgen/%(pybindgen_version)s "
-                "  --prefix=%(ns3_build_home)s && "
+                "  --prefix=%(ns3_build)s && "
                 "  ./waf build && "
                 "  ./waf install && "
-                "  mv %(ns3_build_home)s/lib*/python* %(ns3_build_home)s/lib/python "
+                "  mv %(ns3_build)s/lib*/python* %(ns3_build)s/lib/python "
                 " )"
                 ") "
                 " && "
@@ -537,23 +667,25 @@ class LinuxNS3Simulation(LinuxApplication, NS3Simulation):
                 "   %(install_dce_cmd)s "
                 ") "
               ) % { 
-                    'ns3_version': self.get("ns3Version"),
-                    'pybindgen_version': self.get("pybindgenVersion"),
-                    'build_mode': self.get("buildMode"),
-                    'ns3_build_home': self.ns3_build_home,
-                    'install_dce_cmd': install_dce_cmd
+                    "pybindgen_version": self.get("pybindgenVersion"),
+                    "build_mode": self.get("buildMode"),
+                    "install_dce_cmd": install_dce_cmd,
+                    "ns3_build": self.ns3_build_location,
+                    "ns3_src": self.ns3_src_location,
                  }
 
+        return install_ns3_cmd
+
     @property
     def _environment(self):
         env = []
-        env.append("PYTHONPATH=$PYTHONPATH:${NS3BINDINGS:=%(ns3_build_home)s/lib/python/site-packages}" % { 
-                    'ns3_build_home': self.ns3_build_home
+        env.append("PYTHONPATH=$PYTHONPATH:${NS3BINDINGS:=%(ns3_build)s/lib/python/site-packages}" % { 
+                    "ns3_build": self.ns3_build_location
                  })
         # If NS3LIBRARIES is defined and not empty, assign its value, 
         # if not assign ns3_build_home/lib/ to NS3LIBRARIES and LD_LIBARY_PATH
-        env.append("LD_LIBRARY_PATH=${NS3LIBRARIES:=%(ns3_build_home)s/lib}" % { 
-                    'ns3_build_home': self.ns3_build_home
+        env.append("LD_LIBRARY_PATH=${NS3LIBRARIES:=%(ns3_build)s/lib}" % { 
+                    "ns3_build": self.ns3_build_location
                  })
         env.append("DCE_PATH=$NS3LIBRARIES/../bin_dce")
         env.append("DCE_ROOT=$NS3LIBRARIES/..")
@@ -578,11 +710,27 @@ class LinuxNS3Simulation(LinuxApplication, NS3Simulation):
             .replace("${HOME}", self.node.home_dir)
             # If NS3LIBRARIES is defined and not empty, use that value, 
             # if not use ns3_build_home/lib/
-            .replace("${BIN_DCE}", "${NS3LIBRARIES-%s/lib/}../bin_dce" % \
-                    self.ns3_build_home)
+            .replace("${BIN_DCE}", "${NS3LIBRARIES-%s/lib}/../bin_dce" % \
+                    self.ns3_build_location)
             )
 
     def valid_connection(self, guid):
         # TODO: Validate!
         return True
 
+    def wait_remote_socket(self):
+        """ Waits until the remote socket is created
+        """
+        command = " [ -e %s ] && echo 'DONE' " % self.remote_socket
+
+        for i in xrange(200):
+            (out, err), proc = self.node.execute(command, retry = 1, 
+                    with_lock = True)
+
+            if out.find("DONE") > -1:
+                break
+        else:
+            raise RuntimeError("Remote socket not found at %s" % \
+                    self.remote_socket)
+    
+