def check_cache_entry_switch_to_query_state():
cache_table = wpan.parse_address_cache_table_result(
r1.get(wpan.WPAN_THREAD_ADDRESS_CACHE_TABLE))
for index in range(NUM_QUERY_ADDRS):
verify(
cache_table[index].state == wpan.ADDRESS_CACHE_ENTRY_STATE_QUERY)
verify(cache_table[index].can_evict() == True)
def check_cache_entry_in_retry_state_to_get_to_zero_timeout():
cache_table = wpan.parse_address_cache_table_result(
r1.get(wpan.WPAN_THREAD_ADDRESS_CACHE_TABLE))
for index in range(NUM_QUERY_ADDRS):
verify(cache_table[index].state ==
wpan.ADDRESS_CACHE_ENTRY_STATE_RETRY_QUERY)
verify(cache_table[index].timeout == 0)
def check_cache_entry_switch_to_retry_state():
cache_table = wpan.parse_address_cache_table_result(
r1.get(wpan.WPAN_THREAD_ADDRESS_CACHE_TABLE))
for index in range(NUM_QUERY_ADDRS):
verify(cache_table[index].state ==
wpan.ADDRESS_CACHE_ENTRY_STATE_RETRY_QUERY)
verify(cache_table[index].retry_delay == 2 * INITIAL_RETRY_DELAY)
for num in range(NUM_QUERY_ADDRS):
sender = r1.prepare_tx((r1_address, PORT),
(PREFIX + "800:" + str(num), PORT), "hi nobody!", 1)
wpan.Node.perform_async_tx_rx()
verify(sender.was_successful)
# Wait before next tx to stagger the address queries
# request ensuring different timeouts
time.sleep(MAX_STAGGER_INTERVAL / (NUM_QUERY_ADDRS * speedup))
r2_rloc = int(r2.get(wpan.WPAN_THREAD_RLOC16), 16)
c2_rloc = int(c2.get(wpan.WPAN_THREAD_RLOC16), 16)
r3_rloc = int(r3.get(wpan.WPAN_THREAD_RLOC16), 16)
# Verify that we do see entries in cache table for all the addresses and all are in "query" state
addr_cache_table = wpan.parse_address_cache_table_result(
r1.get(wpan.WPAN_THREAD_ADDRESS_CACHE_TABLE))
verify(len(addr_cache_table) == NUM_QUERY_ADDRS)
for entry in addr_cache_table:
verify(entry.state == wpan.ADDRESS_CACHE_ENTRY_STATE_QUERY)
verify(not entry.can_evict())
verify(entry.timeout > 0)
verify(entry.retry_delay == INITIAL_RETRY_DELAY)
# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
# Check the retry-query behavior
# Wait till all the address queries time out and verify they enter "retry-query" state.
sender = r1.prepare_tx(r1_address, c2_address, "Hi from r1 to c2")
recver = c2.prepare_rx(sender)
wpan.Node.perform_async_tx_rx()
verify(sender.was_successful and recver.was_successful)
# Send a single UDP message from r1 to c3
sender = r1.prepare_tx(r1_address, c3_address, "Hi from r1 to c3")
recver = c3.prepare_rx(sender)
wpan.Node.perform_async_tx_rx()
verify(sender.was_successful and recver.was_successful)
# The address cache table on r1 should contain two entries for
# c2 and c3 addresses.
addr_cache_table = wpan.parse_address_cache_table_result(r1.get(wpan.WPAN_THREAD_ADDRESS_CACHE_TABLE))
verify(len(addr_cache_table) == 2)
for entry in addr_cache_table:
if entry.address == c2_address:
# Entry for c2 should point towards its parent r2.
verify(entry.rloc16 == r2_rloc)
elif entry.address == c3_address:
# Entry for c3 should point towards c3 itself.
verify(entry.rloc16 == c3_rloc)
else:
raise(VerifyError("Unknown entry in the address cache table"))
#- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
# Force c2 to switch its parent from r2 to r3
