From e4504c6320790bba27fccf3746eb38f75f4d2e95 Mon Sep 17 00:00:00 2001 From: Klement Sekera Date: Thu, 8 Dec 2016 10:16:41 +0100 Subject: BFD: fix timing in the main loop Properly wakeup the main process loop only when necessary to avoid missed events. Improve BFD unit test reliability and speed. Add timestamps to logs and replace Queue with more efficient deque. Change-Id: I01255a02057d3146917b43b669ccdc74f31ef0c8 Signed-off-by: Klement Sekera --- test/vpp_papi_provider.py | 28 +++++++++++++++++----------- 1 file changed, 17 insertions(+), 11 deletions(-) (limited to 'test/vpp_papi_provider.py') diff --git a/test/vpp_papi_provider.py b/test/vpp_papi_provider.py index 5e80a03e2c5..c45518bd2c1 100644 --- a/test/vpp_papi_provider.py +++ b/test/vpp_papi_provider.py @@ -2,6 +2,7 @@ import os import fnmatch import time from hook import Hook +from collections import deque # Sphinx creates auto-generated documentation by importing the python source # files and collecting the docstrings from them. The NO_VPP_PAPI flag allows the @@ -48,7 +49,7 @@ class VppPapiProvider(object): jsonfiles.append(os.path.join(root, filename)) self.papi = VPP(jsonfiles) - self._events = list() + self._events = deque() def register_hook(self, hook): """Replace hook registration with new hook @@ -59,19 +60,25 @@ class VppPapiProvider(object): self.hook = hook def collect_events(self): + """ Collect all events from the internal queue and clear the queue. """ e = self._events - self._events = list() + self._events = deque() return e def wait_for_event(self, timeout, name=None): + """ Wait for and return next event. """ + if self._events: + self.test_class.logger.debug("Not waiting, event already queued") limit = time.time() + timeout while time.time() < limit: if self._events: - e = self._events.pop(0) + e = self._events.popleft() if name and type(e).__name__ != name: raise Exception( "Unexpected event received: %s, expected: %s" % (type(e).__name__, name)) + self.test_class.logger.debug("Returning event %s:%s" % + (name, e)) return e time.sleep(0) # yield if name is not None: @@ -79,8 +86,10 @@ class VppPapiProvider(object): raise Exception("Event did not occur within timeout") def __call__(self, name, event): + """ Enqueue event in the internal event queue. """ # FIXME use the name instead of relying on type(e).__name__ ? # FIXME #2 if this throws, it is eaten silently, Ole? + self.test_class.logger.debug("New event: %s: %s" % (name, event)) self._events.append(event) def connect(self): @@ -93,7 +102,7 @@ class VppPapiProvider(object): self.papi.disconnect() def api(self, api_fn, api_args, expected_retval=0): - """Call API function and check it's return value + """ Call API function and check it's return value. Call the appropriate hooks before and after the API call :param api_fn: API function to call @@ -107,14 +116,13 @@ class VppPapiProvider(object): if hasattr(reply, 'retval') and reply.retval != expected_retval: msg = "API call failed, expected retval == %d, got %s" % ( expected_retval, repr(reply)) - self.test_class.logger.error(msg) + self.test_class.logger.info(msg) raise Exception(msg) self.hook.after_api(api_fn.__name__, api_args) return reply def cli(self, cli): - """ - Execute a CLI, calling the before/after hooks appropriately. + """ Execute a CLI, calling the before/after hooks appropriately. :param cli: CLI to execute :returns: CLI output @@ -128,8 +136,7 @@ class VppPapiProvider(object): return r.reply.decode().rstrip('\x00') def ppcli(self, cli): - """ - Helping method to print CLI command in case of info logging level. + """ Helper method to print CLI command in case of info logging level. :param cli: CLI to execute :returns: CLI output @@ -165,8 +172,7 @@ class VppPapiProvider(object): return self.api(self.papi.sw_interface_dump, args) def sw_interface_set_table(self, sw_if_index, is_ipv6, table_id): - """ - Set the IPvX Table-id for the Interface + """ Set the IPvX Table-id for the Interface :param sw_if_index: :param is_ipv6: -- cgit 1.2.3-korg