Add OsmoPcu class

Change-Id: I04d8ed5e02b090d07e91669df44ce354bc6ee749

src/osmo_gsm_tester/pcu_osmo.py

@@ -0,0 +1,88 @@
+# osmo_gsm_tester: specifics for running an osmo-pcu
+#
+# Copyright (C) 2016-2017 by sysmocom - s.f.m.c. GmbH
+#
+# Author: Pau Espin Pedrol <pespin@sysmocom.de>
+#
+# 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.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+import os
+import pprint
+import tempfile
+from . import log, config, util, template, process, event_loop
+
+class OsmoPcu(log.Origin):
+    suite_run = None
+    run_dir = None
+    inst = None
+    env = None
+
+    BIN_PCU = 'osmo-pcu'
+    PCU_OSMO_CFG = 'osmo-pcu.cfg'
+
+    def __init__(self, suite_run, bts, conf):
+        super().__init__(log.C_RUN, OsmoPcu.BIN_PCU)
+        self.suite_run = suite_run
+        self.bts = bts
+        self.conf = conf
+        self.env = {}
+
+    def start(self):
+        self.run_dir = util.Dir(self.suite_run.get_test_run_dir().new_dir(self.name()))
+        self.configure()
+
+        self.inst = util.Dir(os.path.abspath(self.suite_run.trial.get_inst('osmo-pcu')))
+        lib = self.inst.child('lib')
+        if not os.path.isdir(lib):
+            raise RuntimeError('No lib/ in %r' % self.inst)
+        self.env = { 'LD_LIBRARY_PATH': util.prepend_library_path(lib) }
+
+        self.launch_process(OsmoPcu.BIN_PCU, '-r', '1',
+                            '-c', os.path.abspath(self.config_file),
+                            '-i', self.bts.bsc.addr())
+        self.suite_run.poll()
+
+    def launch_process(self, binary_name, *args):
+        binary = os.path.abspath(self.inst.child('bin', binary_name))
+        run_dir = self.run_dir.new_dir(binary_name)
+        if not os.path.isfile(binary):
+            raise RuntimeError('Binary missing: %r' % binary)
+        proc = process.Process(binary_name, run_dir,
+                               (binary,) + args,
+                               env=self.env)
+        self.suite_run.remember_to_stop(proc)
+        proc.launch()
+        return proc
+
+    def configure(self):
+        self.config_file = self.run_dir.new_file(OsmoPcu.PCU_OSMO_CFG)
+        self.dbg(config_file=self.config_file)
+
+        values = dict(osmo_pcu=config.get_defaults('osmo_pcu'))
+        config.overlay(values, self.suite_run.config())
+        config.overlay(values, {
+                        'osmo_pcu': {
+                            'pcu_socket_path': self.bts.pcu_socket_path(),
+                        }
+        })
+        config.overlay(values, { 'osmo_pcu': self.conf })
+
+        self.dbg('OSMO-PCU CONFIG:\n' + pprint.pformat(values))
+
+        with open(self.config_file, 'w') as f:
+            r = template.render(OsmoPcu.PCU_OSMO_CFG, values)
+            self.dbg(r)
+            f.write(r)
+
+# vim: expandtab tabstop=4 shiftwidth=4

src/osmo_gsm_tester/templates/osmo-pcu.cfg.tmpl

@@ -1,4 +1,10 @@
+log stderr
+  logging color 1
+  logging print extended-timestamp 1
+  logging print category 1
+  logging level all debug
 pcu
+ pcu-socket ${osmo_pcu.pcu_socket_path}
  flow-control-interval 10
  cs 2
  alloc-algorithm dynamic