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authorOle Troan <ot@cisco.com>2020-05-20 15:47:06 +0200
committerNeale Ranns <nranns@cisco.com>2020-05-25 11:22:34 +0000
commitf5db3711b28db4e364ac01be8b124dd24d573782 (patch)
treeeee3c8aabae4287bf89c0e545e2400770fc223cb /src/plugins/map/test/test_map.py
parentafc233aa93c3f23b30b756cb4ae2967f968bbbb1 (diff)
api: add new stream message convention
Instead of having to wrap dump/detail calls in control ping, send details messages in between a normal reply / request pair. As expressed in the below service statement. Example: service { rpc map_domains_gets returns map_domains_get_reply stream map_domain_details; }; define map_domains_get { u32 client_index; u32 context; u32 cursor; }; define map_domains_get_reply { u32 context; i32 retval; u32 cursor; }; To avoid blocking the main thread for too long, the replies are now sent in client message queue size chunks. The reply message returns VNET_API_ERROR_EAGAIN when there is more to read. The API handler must also include a "cursor" that is used to the next call to the get function. API handler example: REPLY_AND_DETAILS_MACRO (VL_API_MAP_DOMAINS_GET_REPLY, mm->domains, ({ send_domain_details (cursor, rp, mp->context); })); The macro starts from cursor and iterates through the pool until vl_api_process_may_suspend() returns true or the iteration reaches the end of the list. Client Example: cursor = 0 d = [] while True: rv, details = map_domains_get(cursor=cursor) d += details if rv.retval == 0 or rv.retval != -165: break cursor = rv.cursor or the convenience iterator: for x in vpp.details_iter(vpp.api.map_domains_get): pass or list(details_iter(map_domains_get)) Change-Id: Iad9f6b41b0ef886adb584c97708dd91cf552749e Type: feature Signed-off-by: Ole Troan <ot@cisco.com>
Diffstat (limited to 'src/plugins/map/test/test_map.py')
-rw-r--r--src/plugins/map/test/test_map.py43
1 files changed, 43 insertions, 0 deletions
diff --git a/src/plugins/map/test/test_map.py b/src/plugins/map/test/test_map.py
index 59c23335052..93ea3f06976 100644
--- a/src/plugins/map/test/test_map.py
+++ b/src/plugins/map/test/test_map.py
@@ -100,6 +100,48 @@ class TestMAP(VppTestCase):
self.assertEqual(rv[0].tag, tag,
"output produced incorrect tag value.")
+ def create_domains(self, ip4_pfx_str, ip6_pfx_str, ip6_src_str):
+ ip4_pfx = ipaddress.ip_network(ip4_pfx_str)
+ ip6_dst = ipaddress.ip_network(ip6_pfx_str)
+ mod = ip4_pfx.num_addresses / 1024
+ indicies = []
+ for i in range(ip4_pfx.num_addresses):
+ rv = self.vapi.map_add_domain(ip6_prefix=ip6_pfx_str,
+ ip4_prefix=str(ip4_pfx[i]) + "/32",
+ ip6_src=ip6_src_str)
+ indicies.append(rv.index)
+ return indicies
+
+ def test_api_map_domains_get(self):
+ # Create a bunch of domains
+ domains = self.create_domains('130.67.0.0/24', '2001::/32',
+ '2001::1/128')
+ self.assertEqual(len(domains), 256)
+
+ d = []
+ cursor = 0
+
+ # Invalid cursor
+ rv, details = self.vapi.map_domains_get(cursor=1234)
+ self.assertEqual(rv.retval, -7)
+
+ # Delete a domain in the middle of walk
+ rv, details = self.vapi.map_domains_get(cursor=0)
+ self.assertEqual(rv.retval, -165)
+ self.vapi.map_del_domain(index=rv.cursor)
+ domains.remove(rv.cursor)
+
+ # Continue at point of deleted cursor
+ rv, details = self.vapi.map_domains_get(cursor=rv.cursor)
+ self.assertEqual(rv.retval, -165)
+
+ d = list(self.vapi.vpp.details_iter(self.vapi.map_domains_get))
+ self.assertEqual(len(d), 255)
+
+ # Clean up
+ for i in domains:
+ self.vapi.map_del_domain(index=i)
+
def test_map_e_udp(self):
""" MAP-E UDP"""
@@ -916,5 +958,6 @@ class TestMAP(VppTestCase):
ip6_nh_address="4001::1",
is_add=0)
+
if __name__ == '__main__':
unittest.main(testRunner=VppTestRunner)