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-rw-r--r--erts/emulator/test/socket_SUITE.erl1922
1 files changed, 1916 insertions, 6 deletions
diff --git a/erts/emulator/test/socket_SUITE.erl b/erts/emulator/test/socket_SUITE.erl
index 410582f4a1..3fab6b98a8 100644
--- a/erts/emulator/test/socket_SUITE.erl
+++ b/erts/emulator/test/socket_SUITE.erl
@@ -171,6 +171,15 @@
sc_rs_recvmsg_send_shutdown_receive_tcpL/1,
%% *** Traffic ***
+ traffic_send_and_recv_counters_tcp4/1,
+ traffic_send_and_recv_counters_tcpL/1,
+ traffic_sendmsg_and_recvmsg_counters_tcp4/1,
+ traffic_sendmsg_and_recvmsg_counters_tcpL/1,
+ traffic_sendto_and_recvfrom_counters_udp4/1,
+ traffic_sendto_and_recvfrom_counters_udpL/1,
+ traffic_sendmsg_and_recvmsg_counters_udp4/1,
+ traffic_sendmsg_and_recvmsg_counters_udpL/1,
+
traffic_send_and_recv_chunks_tcp4/1,
traffic_send_and_recv_chunks_tcp6/1,
traffic_send_and_recv_chunks_tcpL/1,
@@ -560,10 +569,10 @@ suite() ->
{timetrap,{minutes,1}}].
all() ->
- Groups = [{api, "ESOCK_TEST_API", include},
- {socket_closure, "ESOCK_TEST_SOCK_CLOSE", include},
- {traffic, "ESOCK_TEST_TRAFFIC", include},
- {ttest, "ESOCK_TEST_TTEST", exclude}],
+ Groups = [{api, "ESOCK_TEST_API", include},
+ {socket_close, "ESOCK_TEST_SOCK_CLOSE", include},
+ {traffic, "ESOCK_TEST_TRAFFIC", include},
+ {ttest, "ESOCK_TEST_TTEST", exclude}],
[use_group(Group, Env, Default) || {Group, Env, Default} <- Groups].
use_group(Group, Env, Default) ->
@@ -593,12 +602,13 @@ groups() ->
{api_options_otp, [], api_options_otp_cases()},
{api_options_ip, [], api_options_ip_cases()},
{api_op_with_timeout, [], api_op_with_timeout_cases()},
- {socket_closure, [], socket_closure_cases()},
+ {socket_close, [], socket_close_cases()},
{sc_ctrl_proc_exit, [], sc_cp_exit_cases()},
{sc_local_close, [], sc_lc_cases()},
{sc_remote_close, [], sc_rc_cases()},
{sc_remote_shutdown, [], sc_rs_cases()},
{traffic, [], traffic_cases()},
+ {traffic_counters, [], traffic_counters_cases()},
{traffic_chunks, [], traffic_chunks_cases()},
{traffic_pp_send_recv, [], traffic_pp_send_recv_cases()},
{traffic_pp_sendto_recvfrom, [], traffic_pp_sendto_recvfrom_cases()},
@@ -757,7 +767,7 @@ api_op_with_timeout_cases() ->
%% These cases tests what happens when the socket is closed/shutdown,
%% locally or remotely.
-socket_closure_cases() ->
+socket_close_cases() ->
[
{group, sc_ctrl_proc_exit},
{group, sc_local_close},
@@ -828,12 +838,25 @@ sc_rs_cases() ->
traffic_cases() ->
[
+ {group, traffic_counters},
{group, traffic_chunks},
{group, traffic_pp_send_recv},
{group, traffic_pp_sendto_recvfrom},
{group, traffic_pp_sendmsg_recvmsg}
].
+traffic_counters_cases() ->
+ [
+ traffic_send_and_recv_counters_tcp4,
+ traffic_send_and_recv_counters_tcpL,
+ traffic_sendmsg_and_recvmsg_counters_tcp4,
+ traffic_sendmsg_and_recvmsg_counters_tcpL,
+ traffic_sendto_and_recvfrom_counters_udp4,
+ traffic_sendto_and_recvfrom_counters_udpL,
+ traffic_sendmsg_and_recvmsg_counters_udp4,
+ traffic_sendmsg_and_recvmsg_counters_udpL
+ ].
+
traffic_chunks_cases() ->
[
traffic_send_and_recv_chunks_tcp4,
@@ -13895,6 +13918,1893 @@ sc_rs_recvmsg_send_shutdown_receive_tcpL(_Config) when is_list(_Config) ->
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%% This test case is intended to (simply) test that the counters
+%% for both read and write.
+%% So that its easy to extend, we use fun's for read and write.
+%% We use TCP on IPv4.
+
+traffic_send_and_recv_counters_tcp4(suite) ->
+ [];
+traffic_send_and_recv_counters_tcp4(doc) ->
+ [];
+traffic_send_and_recv_counters_tcp4(_Config) when is_list(_Config) ->
+ ?TT(?SECS(15)),
+ tc_try(traffic_send_and_recv_counters_tcp4,
+ fun() ->
+ InitState = #{domain => inet,
+ proto => tcp,
+ recv => fun(S) -> socket:recv(S) end,
+ send => fun(S, D) -> socket:send(S, D) end},
+ ok = traffic_send_and_recv_tcp(InitState)
+ end).
+
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%% This test case is intended to (simply) test that the counters
+%% for both read and write.
+%% So that its easy to extend, we use fun's for read and write.
+%% We use default (TCP) on local.
+
+traffic_send_and_recv_counters_tcpL(suite) ->
+ [];
+traffic_send_and_recv_counters_tcpL(doc) ->
+ [];
+traffic_send_and_recv_counters_tcpL(_Config) when is_list(_Config) ->
+ ?TT(?SECS(15)),
+ tc_try(traffic_send_and_recv_counters_tcpL,
+ fun() ->
+ InitState = #{domain => local,
+ proto => default,
+ recv => fun(S) -> socket:recv(S) end,
+ send => fun(S, D) -> socket:send(S, D) end},
+ ok = traffic_send_and_recv_tcp(InitState)
+ end).
+
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%% This test case is intended to (simply) test that the counters
+%% for both read and write.
+%% So that its easy to extend, we use fun's for read and write.
+%% We use TCP on IPv4.
+
+traffic_sendmsg_and_recvmsg_counters_tcp4(suite) ->
+ [];
+traffic_sendmsg_and_recvmsg_counters_tcp4(doc) ->
+ [];
+traffic_sendmsg_and_recvmsg_counters_tcp4(_Config) when is_list(_Config) ->
+ ?TT(?SECS(15)),
+ tc_try(traffic_sendmsg_and_recvmsg_counters_tcp4,
+ fun() ->
+ InitState = #{domain => inet,
+ proto => tcp,
+ recv => fun(S) ->
+ case socket:recvmsg(S) of
+ {ok, #{addr := _Source,
+ iov := [Data]}} ->
+ {ok, Data};
+ {error, _} = ERROR ->
+ ERROR
+ end
+ end,
+ send => fun(S, Data) ->
+ MsgHdr = #{iov => [Data]},
+ socket:sendmsg(S, MsgHdr)
+ end},
+ ok = traffic_send_and_recv_tcp(InitState)
+ end).
+
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%% This test case is intended to (simply) test that the counters
+%% for both read and write.
+%% So that its easy to extend, we use fun's for read and write.
+%% We use default (TCP) on local.
+
+traffic_sendmsg_and_recvmsg_counters_tcpL(suite) ->
+ [];
+traffic_sendmsg_and_recvmsg_counters_tcpL(doc) ->
+ [];
+traffic_sendmsg_and_recvmsg_counters_tcpL(_Config) when is_list(_Config) ->
+ ?TT(?SECS(15)),
+ tc_try(traffic_sendmsg_and_recvmsg_counters_tcpL,
+ fun() ->
+ InitState = #{domain => local,
+ proto => default,
+ recv => fun(S) ->
+ case socket:recvmsg(S) of
+ {ok, #{addr := _Source,
+ iov := [Data]}} ->
+ {ok, Data};
+ {error, _} = ERROR ->
+ ERROR
+ end
+ end,
+ send => fun(S, Data) ->
+ MsgHdr = #{iov => [Data]},
+ socket:sendmsg(S, MsgHdr)
+ end},
+ ok = traffic_send_and_recv_tcp(InitState)
+ end).
+
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+traffic_send_and_recv_tcp(InitState) ->
+ ServerSeq =
+ [
+ %% *** Wait for start order part ***
+ #{desc => "await start",
+ cmd => fun(State) ->
+ Tester = ?SEV_AWAIT_START(),
+ {ok, State#{tester => Tester}}
+ end},
+ #{desc => "monitor tester",
+ cmd => fun(#{tester := Tester} = _State) ->
+ _MRef = erlang:monitor(process, Tester),
+ ok
+ end},
+
+ %% *** Init part ***
+ #{desc => "which local address",
+ cmd => fun(#{domain := Domain} = State) ->
+ LSA = which_local_socket_addr(Domain),
+ {ok, State#{local_sa => LSA}}
+ end},
+ #{desc => "create listen socket",
+ cmd => fun(#{domain := Domain, proto := Proto} = State) ->
+ case socket:open(Domain, stream, Proto) of
+ {ok, Sock} ->
+ {ok, State#{lsock => Sock}};
+ {error, _} = ERROR ->
+ ERROR
+ end
+ end},
+ #{desc => "bind to local address",
+ cmd => fun(#{domain := local,
+ lsock := LSock,
+ local_sa := LSA} = _State) ->
+ case socket:bind(LSock, LSA) of
+ {ok, _Port} ->
+ ok; % We do not care about the port for local
+ {error, _} = ERROR ->
+ ERROR
+ end;
+ (#{lsock := LSock,
+ local_sa := LSA} = State) ->
+ case socket:bind(LSock, LSA) of
+ {ok, Port} ->
+ {ok, State#{lport => Port}};
+ {error, _} = ERROR ->
+ ERROR
+ end
+ end},
+ #{desc => "make listen socket",
+ cmd => fun(#{lsock := LSock}) ->
+ socket:listen(LSock)
+ end},
+ #{desc => "announce ready (init)",
+ cmd => fun(#{domain := local,
+ tester := Tester,
+ local_sa := #{path := Path}}) ->
+ ?SEV_ANNOUNCE_READY(Tester, init, Path),
+ ok;
+ (#{tester := Tester,
+ lport := Port}) ->
+ ?SEV_ANNOUNCE_READY(Tester, init, Port),
+ ok
+ end},
+
+ %% The actual test
+ #{desc => "await continue (accept)",
+ cmd => fun(#{tester := Tester} = _State) ->
+ ?SEV_AWAIT_CONTINUE(Tester, tester, accept)
+ end},
+ #{desc => "accept",
+ cmd => fun(#{lsock := LSock} = State) ->
+ case socket:accept(LSock) of
+ {ok, Sock} ->
+ {ok, State#{csock => Sock}};
+ {error, _} = ERROR ->
+ ERROR
+ end
+ end},
+ #{desc => "initial counter validation (=zero)",
+ cmd => fun(#{csock := Sock} = _State) ->
+ try socket:info(Sock) of
+ #{counters := Counters} ->
+ ?SEV_IPRINT("Validate initial counters: "
+ "~n ~p", [Counters]),
+ traffic_sar_counters_validation(Counters)
+ catch
+ C:E:S ->
+ ?SEV_EPRINT("Failed get socket info: "
+ "~n Class: ~p"
+ "~n Error: ~p"
+ "~n Stack: ~p", [C, E, S]),
+ {error, {socket_info_failed, {C, E, S}}}
+ end
+ end},
+ #{desc => "announce ready (accept)",
+ cmd => fun(#{tester := Tester}) ->
+ ?SEV_ANNOUNCE_READY(Tester, accept),
+ ok
+ end},
+
+ #{desc => "await continue (recv_and_validate 1)",
+ cmd => fun(#{tester := Tester} = _State) ->
+ ?SEV_AWAIT_CONTINUE(Tester, tester, recv_and_validate)
+ end},
+ #{desc => "recv (1)",
+ cmd => fun(#{csock := Sock,
+ recv := Recv} = State) ->
+ case Recv(Sock) of
+ {ok, Data} ->
+ ?SEV_IPRINT("recv ~p bytes", [size(Data)]),
+ {ok, State#{read_pkg => 1,
+ read_byte => size(Data)}};
+ {error, _} = ERROR ->
+ ERROR
+ end
+ end},
+ #{desc => "validate (recv 1)",
+ cmd => fun(#{csock := Sock,
+ read_pkg := Pkg,
+ read_byte := Byte} = _State) ->
+ try socket:info(Sock) of
+ #{counters := Counters} ->
+ ?SEV_IPRINT("validate counters: "
+ "~n ~p", [Counters]),
+ traffic_sar_counters_validation(
+ Counters,
+ [{read_pkg, Pkg},
+ {read_byte, Byte},
+ {read_tries, any}])
+ catch
+ C:E:S ->
+ ?SEV_EPRINT("Failed get socket info: "
+ "~n Class: ~p"
+ "~n Error: ~p"
+ "~n Stack: ~p", [C, E, S]),
+ {error, {socket_info_failed, {C, E, S}}}
+ end
+ end},
+ #{desc => "announce ready (recv_and_validate 1)",
+ cmd => fun(#{tester := Tester}) ->
+ ?SEV_ANNOUNCE_READY(Tester, recv_and_validate),
+ ok
+ end},
+
+ #{desc => "await continue (send_and_validate 1)",
+ cmd => fun(#{tester := Tester} = _State) ->
+ ?SEV_AWAIT_CONTINUE(Tester, tester, send_and_validate)
+ end},
+ #{desc => "send (1)",
+ cmd => fun(#{csock := Sock,
+ send := Send} = State) ->
+ Data = ?DATA,
+ case Send(Sock, Data) of
+ ok ->
+ ?SEV_IPRINT("sent ~p bytes", [size(Data)]),
+ {ok, State#{write_pkg => 1,
+ write_byte => size(Data)}};
+ {error, _} = ERROR ->
+ ERROR
+ end
+ end},
+ #{desc => "validate (send 1)",
+ cmd => fun(#{csock := Sock,
+ read_pkg := RPkg,
+ read_byte := RByte,
+ write_pkg := SPkg,
+ write_byte := SByte} = _State) ->
+ try socket:info(Sock) of
+ #{counters := Counters} ->
+ ?SEV_IPRINT("validate counters: "
+ "~n ~p", [Counters]),
+ traffic_sar_counters_validation(
+ Counters,
+ [{read_pkg, RPkg},
+ {read_byte, RByte},
+ {write_pkg, SPkg},
+ {write_byte, SByte},
+ {read_tries, any},
+ {write_tries, any}])
+ catch
+ C:E:S ->
+ ?SEV_EPRINT("Failed get socket info: "
+ "~n Class: ~p"
+ "~n Error: ~p"
+ "~n Stack: ~p", [C, E, S]),
+ {error, {socket_info_failed, {C, E, S}}}
+ end
+ end},
+ #{desc => "announce ready (send_and_validate 1)",
+ cmd => fun(#{tester := Tester}) ->
+ ?SEV_ANNOUNCE_READY(Tester, send_and_validate),
+ ok
+ end},
+
+ #{desc => "await continue (recv_and_validate 2)",
+ cmd => fun(#{tester := Tester} = _State) ->
+ ?SEV_AWAIT_CONTINUE(Tester, tester, recv_and_validate)
+ end},
+ #{desc => "recv (2)",
+ cmd => fun(#{csock := Sock,
+ recv := Recv,
+ read_pkg := Pkg,
+ read_byte := Byte} = State) ->
+ case Recv(Sock) of
+ {ok, Data} ->
+ ?SEV_IPRINT("recv ~p bytes", [size(Data)]),
+ {ok, State#{read_pkg => Pkg + 1,
+ read_byte => Byte + size(Data)}};
+ {error, _} = ERROR ->
+ ERROR
+ end
+ end},
+ #{desc => "validate (recv 2)",
+ cmd => fun(#{csock := Sock,
+ read_pkg := RPkg,
+ read_byte := RByte,
+ write_pkg := SPkg,
+ write_byte := SByte} = _State) ->
+ try socket:info(Sock) of
+ #{counters := Counters} ->
+ ?SEV_IPRINT("validate counters: "
+ "~n ~p", [Counters]),
+ traffic_sar_counters_validation(
+ Counters,
+ [{read_pkg, RPkg},
+ {read_byte, RByte},
+ {write_pkg, SPkg},
+ {write_byte, SByte},
+ {read_tries, any},
+ {write_tries, any}])
+ catch
+ C:E:S ->
+ ?SEV_EPRINT("Failed get socket info: "
+ "~n Class: ~p"
+ "~n Error: ~p"
+ "~n Stack: ~p", [C, E, S]),
+ {error, {socket_info_failed, {C, E, S}}}
+ end
+ end},
+ #{desc => "announce ready (recv_and_validate 2)",
+ cmd => fun(#{tester := Tester}) ->
+ ?SEV_ANNOUNCE_READY(Tester, recv_and_validate),
+ ok
+ end},
+
+ #{desc => "await continue (send_and_validate 2)",
+ cmd => fun(#{tester := Tester} = _State) ->
+ ?SEV_AWAIT_CONTINUE(Tester, tester, send_and_validate)
+ end},
+ #{desc => "send (2)",
+ cmd => fun(#{csock := Sock,
+ send := Send,
+ write_pkg := Pkg,
+ write_byte := Byte} = State) ->
+ Data = ?DATA,
+ case Send(Sock, Data) of
+ ok ->
+ ?SEV_IPRINT("sent ~p bytes", [size(Data)]),
+ {ok, State#{write_pkg => Pkg + 1,
+ write_byte => Byte + size(Data)}};
+ {error, _} = ERROR ->
+ ERROR
+ end
+ end},
+ #{desc => "validate (send 2)",
+ cmd => fun(#{csock := Sock,
+ read_pkg := RPkg,
+ read_byte := RByte,
+ write_pkg := SPkg,
+ write_byte := SByte} = _State) ->
+ try socket:info(Sock) of
+ #{counters := Counters} ->
+ ?SEV_IPRINT("validate counters: "
+ "~n ~p", [Counters]),
+ traffic_sar_counters_validation(
+ Counters,
+ [{read_pkg, RPkg},
+ {read_byte, RByte},
+ {write_pkg, SPkg},
+ {write_byte, SByte},
+ {read_tries, any},
+ {write_tries, any}])
+ catch
+ C:E:S ->
+ ?SEV_EPRINT("Failed get socket info: "
+ "~n Class: ~p"
+ "~n Error: ~p"
+ "~n Stack: ~p", [C, E, S]),
+ {error, {socket_info_failed, {C, E, S}}}
+ end
+ end},
+ #{desc => "announce ready (send_and_validate 2)",
+ cmd => fun(#{tester := Tester}) ->
+ ?SEV_ANNOUNCE_READY(Tester, send_and_validate),
+ ok
+ end},
+
+
+ %% Termination
+ #{desc => "await terminate (from tester)",
+ cmd => fun(#{tester := Tester} = State) ->
+ case ?SEV_AWAIT_TERMINATE(Tester, tester) of
+ ok ->
+ {ok, maps:remove(tester, State)};
+ {error, _} = ERROR ->
+ ERROR
+ end
+ end},
+ #{desc => "close connection socket (just in case)",
+ cmd => fun(#{csock := Sock} = State) ->
+ (catch socket:close(Sock)),
+ {ok, maps:remove(csock, State)}
+ end},
+ #{desc => "close listen socket",
+ cmd => fun(#{domain := local,
+ lsock := Sock,
+ local_sa := #{path := Path}} = State) ->
+ ok = socket:close(Sock),
+ State1 =
+ unlink_path(Path,
+ fun() ->
+ maps:remove(local_sa, State)
+ end,
+ fun() -> State end),
+ {ok, maps:remove(lsock, State1)};
+ (#{lsock := Sock} = State) ->
+ (catch socket:close(Sock)),
+ {ok, maps:remove(lsock, State)}
+ end},
+
+ %% *** We are done ***
+ ?SEV_FINISH_NORMAL
+ ],
+
+ ClientSeq =
+ [
+ %% *** Wait for start order part ***
+ #{desc => "await start (from tester)",
+ cmd => fun(#{domain := local} = State) ->
+ {Tester, Path} = ?SEV_AWAIT_START(),
+ {ok, State#{tester => Tester, server_path => Path}};
+ (State) ->
+ {Tester, Port} = ?SEV_AWAIT_START(),
+ {ok, State#{tester => Tester, server_port => Port}}
+ end},
+ #{desc => "monitor tester",
+ cmd => fun(#{tester := Tester} = _State) ->
+ _MRef = erlang:monitor(process, Tester),
+ ok
+ end},
+
+ %% *** Init part ***
+ #{desc => "which server (local) address",
+ cmd => fun(#{domain := local = Domain,
+ server_path := Path} = State) ->
+ LSA = which_local_socket_addr(Domain),
+ SSA = #{family => Domain, path => Path},
+ {ok, State#{local_sa => LSA, server_sa => SSA}};
+ (#{domain := Domain, server_port := Port} = State) ->
+ LSA = which_local_socket_addr(Domain),
+ SSA = LSA#{port => Port},
+ {ok, State#{local_sa => LSA, server_sa => SSA}}
+ end},
+ #{desc => "create socket",
+ cmd => fun(#{domain := Domain,
+ proto := Proto} = State) ->
+ case socket:open(Domain, stream, Proto) of
+ {ok, Sock} ->
+ {ok, State#{sock => Sock}};
+ {error, _} = ERROR ->
+ ERROR
+ end
+ end},
+ #{desc => "bind to local address",
+ cmd => fun(#{sock := Sock, local_sa := LSA} = _State) ->
+ case socket:bind(Sock, LSA) of
+ {ok, _Port} ->
+ ok;
+ {error, _} = ERROR ->
+ ERROR
+ end
+ end},
+ #{desc => "announce ready (init)",
+ cmd => fun(#{tester := Tester}) ->
+ ?SEV_ANNOUNCE_READY(Tester, init),
+ ok
+ end},
+
+ %% The actual test
+ #{desc => "await continue (connect)",
+ cmd => fun(#{tester := Tester} = _State) ->
+ ?SEV_AWAIT_CONTINUE(Tester, tester, connect),
+ ok
+ end},
+ #{desc => "connect to server",
+ cmd => fun(#{sock := Sock, server_sa := SSA}) ->
+ socket:connect(Sock, SSA)
+ end},
+ #{desc => "announce ready (connect)",
+ cmd => fun(#{tester := Tester}) ->
+ ?SEV_ANNOUNCE_READY(Tester, connect),
+ ok
+ end},
+
+ #{desc => "await continue (send_and_validate 1)",
+ cmd => fun(#{tester := Tester} = _State) ->
+ ?SEV_AWAIT_CONTINUE(Tester, tester, send_and_validate)
+ end},
+ #{desc => "send (1)",
+ cmd => fun(#{sock := Sock,
+ send := Send} = State) ->
+ Data = ?DATA,
+ case Send(Sock, Data) of
+ ok ->
+ ?SEV_IPRINT("sent ~p bytes", [size(Data)]),
+ {ok, State#{write_pkg => 1,
+ write_byte => size(Data)}};
+ {error, _} = ERROR ->
+ ERROR
+ end
+ end},
+ #{desc => "validate (send 1)",
+ cmd => fun(#{sock := Sock,
+ write_pkg := SPkg,
+ write_byte := SByte} = _State) ->
+ try socket:info(Sock) of
+ #{counters := Counters} ->
+ ?SEV_IPRINT("validate counters: "
+ "~n ~p", [Counters]),
+ traffic_sar_counters_validation(
+ Counters,
+ [{write_pkg, SPkg},
+ {write_byte, SByte},
+ {write_tries, any}])
+ catch
+ C:E:S ->
+ ?SEV_EPRINT("Failed get socket info: "
+ "~n Class: ~p"
+ "~n Error: ~p"
+ "~n Stack: ~p", [C, E, S]),
+ {error, {socket_info_failed, {C, E, S}}}
+ end
+ end},
+ #{desc => "announce ready (send_and_validate 1)",
+ cmd => fun(#{tester := Tester}) ->
+ ?SEV_ANNOUNCE_READY(Tester, send_and_validate),
+ ok
+ end},
+
+ #{desc => "await continue (recv_and_validate 1)",
+ cmd => fun(#{tester := Tester} = _State) ->
+ ?SEV_AWAIT_CONTINUE(Tester, tester, recv_and_validate)
+ end},
+ #{desc => "recv (1)",
+ cmd => fun(#{sock := Sock,
+ recv := Recv} = State) ->
+ case Recv(Sock) of
+ {ok, Data} ->
+ ?SEV_IPRINT("recv ~p bytes", [size(Data)]),
+ {ok, State#{read_pkg => 1,
+ read_byte => size(Data)}};
+ {error, _} = ERROR ->
+ ERROR
+ end
+ end},
+ #{desc => "validate (recv 1)",
+ cmd => fun(#{sock := Sock,
+ read_pkg := RPkg,
+ read_byte := RByte,
+ write_pkg := SPkg,
+ write_byte := SByte} = _State) ->
+ try socket:info(Sock) of
+ #{counters := Counters} ->
+ ?SEV_IPRINT("validate counters: "
+ "~n ~p", [Counters]),
+ traffic_sar_counters_validation(
+ Counters,
+ [{read_pkg, RPkg},
+ {read_byte, RByte},
+ {write_pkg, SPkg},
+ {write_byte, SByte},
+ {read_tries, any},
+ {write_tries, any}])
+ catch
+ C:E:S ->
+ ?SEV_EPRINT("Failed get socket info: "
+ "~n Class: ~p"
+ "~n Error: ~p"
+ "~n Stack: ~p", [C, E, S]),
+ {error, {socket_info_failed, {C, E, S}}}
+ end
+ end},
+ #{desc => "announce ready (recv_and_validate 1)",
+ cmd => fun(#{tester := Tester}) ->
+ ?SEV_ANNOUNCE_READY(Tester, recv_and_validate),
+ ok
+ end},
+
+ #{desc => "await continue (send_and_validate 2)",
+ cmd => fun(#{tester := Tester} = _State) ->
+ ?SEV_AWAIT_CONTINUE(Tester, tester, send_and_validate)
+ end},
+ #{desc => "send (2)",
+ cmd => fun(#{sock := Sock,
+ send := Send,
+ write_pkg := SPkg,
+ write_byte := SByte} = State) ->
+ Data = ?DATA,
+ case Send(Sock, Data) of
+ ok ->
+ ?SEV_IPRINT("sent ~p bytes", [size(Data)]),
+ {ok, State#{write_pkg => SPkg + 1,
+ write_byte => SByte + size(Data)}};
+ {error, _} = ERROR ->
+ ERROR
+ end
+ end},
+ #{desc => "validate (send 2)",
+ cmd => fun(#{sock := Sock,
+ read_pkg := RPkg,
+ read_byte := RByte,
+ write_pkg := SPkg,
+ write_byte := SByte} = _State) ->
+ try socket:info(Sock) of
+ #{counters := Counters} ->
+ ?SEV_IPRINT("validate counters: "
+ "~n ~p", [Counters]),
+ traffic_sar_counters_validation(
+ Counters,
+ [{read_pkg, RPkg},
+ {read_byte, RByte},
+ {write_pkg, SPkg},
+ {write_byte, SByte},
+ {read_tries, any},
+ {write_tries, any}])
+ catch
+ C:E:S ->
+ ?SEV_EPRINT("Failed get socket info: "
+ "~n Class: ~p"
+ "~n Error: ~p"
+ "~n Stack: ~p", [C, E, S]),
+ {error, {socket_info_failed, {C, E, S}}}
+ end
+ end},
+ #{desc => "announce ready (send_and_validate 2)",
+ cmd => fun(#{tester := Tester}) ->
+ ?SEV_ANNOUNCE_READY(Tester, send_and_validate),
+ ok
+ end},
+
+ #{desc => "await continue (recv_and_validate 2)",
+ cmd => fun(#{tester := Tester} = _State) ->
+ ?SEV_AWAIT_CONTINUE(Tester, tester, recv_and_validate)
+ end},
+ #{desc => "recv (2)",
+ cmd => fun(#{sock := Sock,
+ recv := Recv,
+ read_pkg := RPkg,
+ read_byte := RByte} = State) ->
+ case Recv(Sock) of
+ {ok, Data} ->
+ ?SEV_IPRINT("recv ~p bytes", [size(Data)]),
+ {ok, State#{read_pkg => RPkg + 1,
+ read_byte => RByte + size(Data)}};
+ {error, _} = ERROR ->
+ ERROR
+ end
+ end},
+ #{desc => "validate (recv 2)",
+ cmd => fun(#{sock := Sock,
+ read_pkg := RPkg,
+ read_byte := RByte,
+ write_pkg := SPkg,
+ write_byte := SByte} = _State) ->
+ try socket:info(Sock) of
+ #{counters := Counters} ->
+ ?SEV_IPRINT("validate counters: "
+ "~n ~p", [Counters]),
+ traffic_sar_counters_validation(
+ Counters,
+ [{read_pkg, RPkg},
+ {read_byte, RByte},
+ {write_pkg, SPkg},
+ {write_byte, SByte},
+ {read_tries, any},
+ {write_tries, any}])
+ catch
+ C:E:S ->
+ ?SEV_EPRINT("Failed get socket info: "
+ "~n Class: ~p"
+ "~n Error: ~p"
+ "~n Stack: ~p", [C, E, S]),
+ {error, {socket_info_failed, {C, E, S}}}
+ end
+ end},
+ #{desc => "announce ready (recv_and_validate 2)",
+ cmd => fun(#{tester := Tester}) ->
+ ?SEV_ANNOUNCE_READY(Tester, recv_and_validate),
+ ok
+ end},
+
+ %% Termination
+ #{desc => "await terminate (from tester)",
+ cmd => fun(#{tester := Tester} = State) ->
+ case ?SEV_AWAIT_TERMINATE(Tester, tester) of
+ ok ->
+ {ok, maps:remove(tester, State)};
+ {error, _} = ERROR ->
+ ERROR
+ end
+ end},
+ #{desc => "close connection socket",
+ cmd => fun(#{domain := local,
+ sock := Sock,
+ local_sa := #{path := Path}} = State) ->
+ ok = socket:close(Sock),
+ State1 =
+ unlink_path(Path,
+ fun() ->
+ maps:remove(local_sa, State)
+ end,
+ fun() -> State end),
+ {ok, maps:remove(sock, State1)};
+ (#{sock := Sock} = State) ->
+ socket:close(Sock),
+ {ok, maps:remove(sock, State)}
+ end},
+
+ %% *** We are done ***
+ ?SEV_FINISH_NORMAL
+ ],
+
+
+ TesterSeq =
+ [
+ %% *** Init part ***
+ #{desc => "monitor server",
+ cmd => fun(#{server := Pid} = _State) ->
+ _MRef = erlang:monitor(process, Pid),
+ ok
+ end},
+ #{desc => "monitor client",
+ cmd => fun(#{client := Pid} = _State) ->
+ _MRef = erlang:monitor(process, Pid),
+ ok
+ end},
+
+ %% Start the server
+ #{desc => "order server start",
+ cmd => fun(#{server := Pid} = _State) ->
+ ?SEV_ANNOUNCE_START(Pid),
+ ok
+ end},
+ #{desc => "await server ready (init)",
+ cmd => fun(#{domain := local,
+ server := Pid} = State) ->
+ {ok, Path} = ?SEV_AWAIT_READY(Pid, server, init),
+ {ok, State#{path => Path}};
+ (#{server := Pid} = State) ->
+ {ok, Port} = ?SEV_AWAIT_READY(Pid, server, init),
+ {ok, State#{port => Port}}
+ end},
+
+ %% Start the client
+ #{desc => "order client start",
+ cmd => fun(#{domain := local,
+ client := Pid,
+ path := Path} = _State) ->
+ ?SEV_ANNOUNCE_START(Pid, Path),
+ ok;
+ (#{client := Pid,
+ port := Port} = _State) ->
+ ?SEV_ANNOUNCE_START(Pid, Port),
+ ok
+ end},
+ #{desc => "await client ready (init)",
+ cmd => fun(#{client := Pid} = _State) ->
+ ok = ?SEV_AWAIT_READY(Pid, client, init)
+ end},
+
+ %% *** The actual test ***
+
+ #{desc => "order server to continue (with accept)",
+ cmd => fun(#{server := Server} = _State) ->
+ ?SEV_ANNOUNCE_CONTINUE(Server, accept),
+ ok
+ end},
+
+ ?SEV_SLEEP(?SECS(1)),
+
+ #{desc => "order client to continue (with connect)",
+ cmd => fun(#{client := Client} = _State) ->
+ ?SEV_ANNOUNCE_CONTINUE(Client, connect),
+ ok
+ end},
+ #{desc => "await client ready (connect)",
+ cmd => fun(#{client := Client} = _State) ->
+ ?SEV_AWAIT_READY(Client, client, connect)
+ end},
+ #{desc => "await server ready (accept)",
+ cmd => fun(#{server := Server} = _State) ->
+ ?SEV_AWAIT_READY(Server, server, accept)
+ end},
+
+ ?SEV_SLEEP(?SECS(1)),
+
+ #{desc => "order server to continue (recv_and_validate 1)",
+ cmd => fun(#{server := Server} = _State) ->
+ ?SEV_ANNOUNCE_CONTINUE(Server, recv_and_validate),
+ ok
+ end},
+ #{desc => "order client to continue (send_and_validate 1)",
+ cmd => fun(#{client := Client} = _State) ->
+ ?SEV_ANNOUNCE_CONTINUE(Client, send_and_validate),
+ ok
+ end},
+ #{desc => "await client ready (send_and_validate 1)",
+ cmd => fun(#{client := Client} = _State) ->
+ ?SEV_AWAIT_READY(Client, client, send_and_validate)
+ end},
+ #{desc => "await server ready (recv_and_validate 1)",
+ cmd => fun(#{server := Server} = _State) ->
+ ?SEV_AWAIT_READY(Server, server, recv_and_validate)
+ end},
+
+ ?SEV_SLEEP(?SECS(1)),
+
+ #{desc => "order client to continue (recv_and_validate 1)",
+ cmd => fun(#{client := Client} = _State) ->
+ ?SEV_ANNOUNCE_CONTINUE(Client, recv_and_validate),
+ ok
+ end},
+ #{desc => "order server to continue (send_and_validate 1)",
+ cmd => fun(#{server := Server} = _State) ->
+ ?SEV_ANNOUNCE_CONTINUE(Server, send_and_validate),
+ ok
+ end},
+ #{desc => "await server ready (send_and_validate 1)",
+ cmd => fun(#{server := Server} = _State) ->
+ ?SEV_AWAIT_READY(Server, server, send_and_validate)
+ end},
+ #{desc => "await client ready (recv_and_validate 1)",
+ cmd => fun(#{client := Client} = _State) ->
+ ?SEV_AWAIT_READY(Client, client, recv_and_validate)
+ end},
+
+ ?SEV_SLEEP(?SECS(1)),
+
+ #{desc => "order server to continue (recv_and_validate 2)",
+ cmd => fun(#{server := Server} = _State) ->
+ ?SEV_ANNOUNCE_CONTINUE(Server, recv_and_validate),
+ ok
+ end},
+ #{desc => "order client to continue (send_and_validate 2)",
+ cmd => fun(#{client := Client} = _State) ->
+ ?SEV_ANNOUNCE_CONTINUE(Client, send_and_validate),
+ ok
+ end},
+ #{desc => "await client ready (send_and_validate 2)",
+ cmd => fun(#{client := Client} = _State) ->
+ ?SEV_AWAIT_READY(Client, client, send_and_validate)
+ end},
+ #{desc => "await server ready (recv_and_validate 2)",
+ cmd => fun(#{server := Server} = _State) ->
+ ?SEV_AWAIT_READY(Server, server, recv_and_validate)
+ end},
+
+ ?SEV_SLEEP(?SECS(1)),
+
+ #{desc => "order client to continue (recv_and_validate 2)",
+ cmd => fun(#{client := Client} = _State) ->
+ ?SEV_ANNOUNCE_CONTINUE(Client, recv_and_validate),
+ ok
+ end},
+ #{desc => "order server to continue (send_and_validate 2)",
+ cmd => fun(#{server := Server} = _State) ->
+ ?SEV_ANNOUNCE_CONTINUE(Server, send_and_validate),
+ ok
+ end},
+ #{desc => "await server ready (send_and_validate 2)",
+ cmd => fun(#{server := Server} = _State) ->
+ ?SEV_AWAIT_READY(Server, server, send_and_validate)
+ end},
+ #{desc => "await client ready (recv_and_validate 2)",
+ cmd => fun(#{client := Client} = _State) ->
+ ?SEV_AWAIT_READY(Client, client, recv_and_validate)
+ end},
+
+ %% *** Termination ***
+ #{desc => "order client to terminate",
+ cmd => fun(#{client := Client} = _State) ->
+ ?SEV_ANNOUNCE_TERMINATE(Client),
+ ok
+ end},
+ #{desc => "await client termination",
+ cmd => fun(#{client := Client} = State) ->
+ ?SEV_AWAIT_TERMINATION(Client),
+ State1 = maps:remove(client, State),
+ {ok, State1}
+ end},
+ #{desc => "order server to terminate",
+ cmd => fun(#{server := Server} = _State) ->
+ ?SEV_ANNOUNCE_TERMINATE(Server),
+ ok
+ end},
+ #{desc => "await server termination",
+ cmd => fun(#{server := Server} = State) ->
+ ?SEV_AWAIT_TERMINATION(Server),
+ State1 = maps:remove(server, State),
+ {ok, State1}
+ end},
+
+ %% *** We are done ***
+ ?SEV_FINISH_NORMAL
+ ],
+
+ i("start server evaluator"),
+ ServerInitState = InitState#{host => local_host()},
+ Server = ?SEV_START("server", ServerSeq, ServerInitState),
+
+ i("start client evaluator(s)"),
+ ClientInitState = InitState#{host => local_host()},
+ Client = ?SEV_START("client", ClientSeq, ClientInitState),
+
+ i("start 'tester' evaluator"),
+ TesterInitState = #{server => Server#ev.pid,
+ client => Client#ev.pid},
+ Tester = ?SEV_START("tester", TesterSeq, TesterInitState),
+
+ i("await evaluator"),
+ ok = ?SEV_AWAIT_FINISH([Server, Client, Tester]).
+
+
+
+traffic_sar_counters_validation(Counters) ->
+ traffic_sar_counters_validation(Counters, []).
+
+traffic_sar_counters_validation(Counters, []) ->
+ (catch lists:foreach(
+ fun({_Cnt, 0}) -> ok;
+ ({Cnt, Val}) -> throw({error, {invalid_counter, Cnt, Val}})
+ end,
+ Counters));
+traffic_sar_counters_validation(Counters, [{Cnt, Val}|ValidateCounters]) ->
+ case lists:keysearch(Cnt, 1, Counters) of
+ {value, {Cnt, Val}} ->
+ Counters2 = lists:keydelete(Cnt, 1, Counters),
+ traffic_sar_counters_validation(Counters2, ValidateCounters);
+ {value, {Cnt, _Val}} when (Val =:= any) ->
+ Counters2 = lists:keydelete(Cnt, 1, Counters),
+ traffic_sar_counters_validation(Counters2, ValidateCounters);
+ {value, {Cnt, InvVal}} ->
+ {error, {invalid_counter, Cnt, InvVal, Val}};
+ false ->
+ {error, {unknown_counter, Cnt, Counters}}
+ end.
+
+
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%% This test case is intended to (simply) test that the counters
+%% for both read and write.
+%% So that its easy to extend, we use fun's for read and write.
+%% We use UDP on IPv4.
+
+traffic_sendto_and_recvfrom_counters_udp4(suite) ->
+ [];
+traffic_sendto_and_recvfrom_counters_udp4(doc) ->
+ [];
+traffic_sendto_and_recvfrom_counters_udp4(_Config) when is_list(_Config) ->
+ ?TT(?SECS(15)),
+ tc_try(traffic_sendto_and_recvfrom_counters_udp4,
+ fun() ->
+ InitState = #{domain => inet,
+ proto => udp,
+ recv => fun(S) ->
+ socket:recvfrom(S)
+ end,
+ send => fun(S, Data, Dest) ->
+ socket:sendto(S, Data, Dest)
+ end},
+ ok = traffic_send_and_recv_udp(InitState)
+ end).
+
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%% This test case is intended to (simply) test that the counters
+%% for both read and write.
+%% So that its easy to extend, we use fun's for read and write.
+%% We use default (UDP) on local.
+
+traffic_sendto_and_recvfrom_counters_udpL(suite) ->
+ [];
+traffic_sendto_and_recvfrom_counters_udpL(doc) ->
+ [];
+traffic_sendto_and_recvfrom_counters_udpL(_Config) when is_list(_Config) ->
+ ?TT(?SECS(15)),
+ tc_try(traffic_sendto_and_recvfrom_counters_udp4,
+ fun() ->
+ InitState = #{domain => local,
+ proto => default,
+ recv => fun(S) ->
+ socket:recvfrom(S)
+ end,
+ send => fun(S, Data, Dest) ->
+ socket:sendto(S, Data, Dest)
+ end},
+ ok = traffic_send_and_recv_udp(InitState)
+ end).
+
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%% This test case is intended to (simply) test that the counters
+%% for both read and write.
+%% So that its easy to extend, we use fun's for read and write.
+%% We use UDP on IPv4.
+
+traffic_sendmsg_and_recvmsg_counters_udp4(suite) ->
+ [];
+traffic_sendmsg_and_recvmsg_counters_udp4(doc) ->
+ [];
+traffic_sendmsg_and_recvmsg_counters_udp4(_Config) when is_list(_Config) ->
+ ?TT(?SECS(15)),
+ tc_try(traffic_sendmsg_and_recvmsg_counters_udp4,
+ fun() ->
+ InitState = #{domain => inet,
+ proto => udp,
+ recv => fun(S) ->
+ case socket:recvmsg(S) of
+ {ok, #{addr := Source,
+ iov := [Data]}} ->
+ {ok, {Source, Data}};
+ {error, _} = ERROR ->
+ ERROR
+ end
+ end,
+ send => fun(S, Data, Dest) ->
+ MsgHdr = #{addr => Dest,
+ iov => [Data]},
+ socket:sendmsg(S, MsgHdr)
+ end},
+ ok = traffic_send_and_recv_udp(InitState)
+ end).
+
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%% This test case is intended to (simply) test that the counters
+%% for both read and write.
+%% So that its easy to extend, we use fun's for read and write.
+%% We use default (UDP) on local.
+
+traffic_sendmsg_and_recvmsg_counters_udpL(suite) ->
+ [];
+traffic_sendmsg_and_recvmsg_counters_udpL(doc) ->
+ [];
+traffic_sendmsg_and_recvmsg_counters_udpL(_Config) when is_list(_Config) ->
+ ?TT(?SECS(15)),
+ tc_try(traffic_sendmsg_and_recvmsg_counters_udpL,
+ fun() ->
+ InitState = #{domain => local,
+ proto => default,
+ recv => fun(S) ->
+ case socket:recvmsg(S) of
+ {ok, #{addr := Source,
+ iov := [Data]}} ->
+ {ok, {Source, Data}};
+ {error, _} = ERROR ->
+ ERROR
+ end
+ end,
+ send => fun(S, Data, Dest) ->
+ MsgHdr = #{addr => Dest,
+ iov => [Data]},
+ socket:sendmsg(S, MsgHdr)
+ end},
+ ok = traffic_send_and_recv_udp(InitState)
+ end).
+
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+traffic_send_and_recv_udp(InitState) ->
+ ServerSeq =
+ [
+ %% *** Wait for start order part ***
+ #{desc => "await start",
+ cmd => fun(State) ->
+ Tester = ?SEV_AWAIT_START(),
+ {ok, State#{tester => Tester}}
+ end},
+ #{desc => "monitor tester",
+ cmd => fun(#{tester := Tester} = _State) ->
+ _MRef = erlang:monitor(process, Tester),
+ ok
+ end},
+
+ %% *** Init part ***
+ #{desc => "which local address",
+ cmd => fun(#{domain := Domain} = State) ->
+ LSA = which_local_socket_addr(Domain),
+ {ok, State#{local_sa => LSA}}
+ end},
+ #{desc => "create socket",
+ cmd => fun(#{domain := Domain, proto := Proto} = State) ->
+ case socket:open(Domain, dgram, Proto) of
+ {ok, Sock} ->
+ {ok, State#{sock => Sock}};
+ {error, _} = ERROR ->
+ ERROR
+ end
+ end},
+ #{desc => "bind to local address",
+ cmd => fun(#{domain := local,
+ sock := Sock,
+ local_sa := LSA} = _State) ->
+ case socket:bind(Sock, LSA) of
+ {ok, _Port} ->
+ ok; % We do not care about the port for local
+ {error, _} = ERROR ->
+ ERROR
+ end;
+ (#{sock := LSock,
+ local_sa := LSA} = State) ->
+ case socket:bind(LSock, LSA) of
+ {ok, Port} ->
+ {ok, State#{lport => Port}};
+ {error, _} = ERROR ->
+ ERROR
+ end
+ end},
+ #{desc => "initial counter validation (=zero)",
+ cmd => fun(#{sock := Sock} = _State) ->
+ try socket:info(Sock) of
+ #{counters := Counters} ->
+ ?SEV_IPRINT("Validate initial counters: "
+ "~n ~p", [Counters]),
+ traffic_sar_counters_validation(Counters)
+ catch
+ C:E:S ->
+ ?SEV_EPRINT("Failed get socket info: "
+ "~n Class: ~p"
+ "~n Error: ~p"
+ "~n Stack: ~p", [C, E, S]),
+ {error, {socket_info_failed, {C, E, S}}}
+ end
+ end},
+ #{desc => "announce ready (init)",
+ cmd => fun(#{domain := local,
+ tester := Tester,
+ local_sa := #{path := Path}}) ->
+ ?SEV_ANNOUNCE_READY(Tester, init, Path),
+ ok;
+ (#{tester := Tester,
+ lport := Port}) ->
+ ?SEV_ANNOUNCE_READY(Tester, init, Port),
+ ok
+ end},
+
+ %% The actual test
+ #{desc => "await continue (recv_and_validate 1)",
+ cmd => fun(#{tester := Tester} = _State) ->
+ ?SEV_AWAIT_CONTINUE(Tester, tester, recv_and_validate)
+ end},
+ #{desc => "recv (1)",
+ cmd => fun(#{sock := Sock,
+ recv := Recv} = State) ->
+ case Recv(Sock) of
+ {ok, {ClientSA, Data}} ->
+ ?SEV_IPRINT("recv ~p bytes", [size(Data)]),
+ {ok, State#{client_sa => ClientSA,
+ read_pkg => 1,
+ read_byte => size(Data)}};
+ {error, _} = ERROR ->
+ ERROR
+ end
+ end},
+ #{desc => "validate (recv 1)",
+ cmd => fun(#{sock := Sock,
+ read_pkg := Pkg,
+ read_byte := Byte} = _State) ->
+ try socket:info(Sock) of
+ #{counters := Counters} ->
+ ?SEV_IPRINT("validate counters: "
+ "~n ~p", [Counters]),
+ traffic_sar_counters_validation(
+ Counters,
+ [{read_pkg, Pkg},
+ {read_byte, Byte},
+ {read_tries, any}])
+ catch
+ C:E:S ->
+ ?SEV_EPRINT("Failed get socket info: "
+ "~n Class: ~p"
+ "~n Error: ~p"
+ "~n Stack: ~p", [C, E, S]),
+ {error, {socket_info_failed, {C, E, S}}}
+ end
+ end},
+ #{desc => "announce ready (recv_and_validate 1)",
+ cmd => fun(#{tester := Tester}) ->
+ ?SEV_ANNOUNCE_READY(Tester, recv_and_validate),
+ ok
+ end},
+
+ #{desc => "await continue (send_and_validate 1)",
+ cmd => fun(#{tester := Tester} = _State) ->
+ ?SEV_AWAIT_CONTINUE(Tester, tester, send_and_validate)
+ end},
+ #{desc => "send (1)",
+ cmd => fun(#{sock := Sock,
+ send := Send,
+ client_sa := ClientSA} = State) ->
+ Data = ?DATA,
+ case Send(Sock, Data, ClientSA) of
+ ok ->
+ ?SEV_IPRINT("sent ~p bytes", [size(Data)]),
+ {ok, State#{write_pkg => 1,
+ write_byte => size(Data)}};
+ {error, _} = ERROR ->
+ ERROR
+ end
+ end},
+ #{desc => "validate (send 1)",
+ cmd => fun(#{sock := Sock,
+ read_pkg := RPkg,
+ read_byte := RByte,
+ write_pkg := SPkg,
+ write_byte := SByte} = _State) ->
+ try socket:info(Sock) of
+ #{counters := Counters} ->
+ ?SEV_IPRINT("validate counters: "
+ "~n ~p", [Counters]),
+ traffic_sar_counters_validation(
+ Counters,
+ [{read_pkg, RPkg},
+ {read_byte, RByte},
+ {write_pkg, SPkg},
+ {write_byte, SByte},
+ {read_tries, any},
+ {write_tries, any}])
+ catch
+ C:E:S ->
+ ?SEV_EPRINT("Failed get socket info: "
+ "~n Class: ~p"
+ "~n Error: ~p"
+ "~n Stack: ~p", [C, E, S]),
+ {error, {socket_info_failed, {C, E, S}}}
+ end
+ end},
+ #{desc => "announce ready (send_and_validate 1)",
+ cmd => fun(#{tester := Tester}) ->
+ ?SEV_ANNOUNCE_READY(Tester, send_and_validate),
+ ok
+ end},
+
+ #{desc => "await continue (recv_and_validate 2)",
+ cmd => fun(#{tester := Tester} = _State) ->
+ ?SEV_AWAIT_CONTINUE(Tester, tester, recv_and_validate)
+ end},
+ #{desc => "recv (2)",
+ cmd => fun(#{sock := Sock,
+ recv := Recv,
+ read_pkg := Pkg,
+ read_byte := Byte} = State) ->
+ case Recv(Sock) of
+ {ok, {Source, Data}} ->
+ ?SEV_IPRINT("recv ~p bytes", [size(Data)]),
+ {ok, State#{client_sa => Source,
+ read_pkg => Pkg + 1,
+ read_byte => Byte + size(Data)}};
+ {error, _} = ERROR ->
+ ERROR
+ end
+ end},
+ #{desc => "validate (recv 2)",
+ cmd => fun(#{sock := Sock,
+ read_pkg := RPkg,
+ read_byte := RByte,
+ write_pkg := SPkg,
+ write_byte := SByte} = _State) ->
+ try socket:info(Sock) of
+ #{counters := Counters} ->
+ ?SEV_IPRINT("validate counters: "
+ "~n ~p", [Counters]),
+ traffic_sar_counters_validation(
+ Counters,
+ [{read_pkg, RPkg},
+ {read_byte, RByte},
+ {write_pkg, SPkg},
+ {write_byte, SByte},
+ {read_tries, any},
+ {write_tries, any}])
+ catch
+ C:E:S ->
+ ?SEV_EPRINT("Failed get socket info: "
+ "~n Class: ~p"
+ "~n Error: ~p"
+ "~n Stack: ~p", [C, E, S]),
+ {error, {socket_info_failed, {C, E, S}}}
+ end
+ end},
+ #{desc => "announce ready (recv_and_validate 2)",
+ cmd => fun(#{tester := Tester}) ->
+ ?SEV_ANNOUNCE_READY(Tester, recv_and_validate),
+ ok
+ end},
+
+ #{desc => "await continue (send_and_validate 2)",
+ cmd => fun(#{tester := Tester} = _State) ->
+ ?SEV_AWAIT_CONTINUE(Tester, tester, send_and_validate)
+ end},
+ #{desc => "send (2)",
+ cmd => fun(#{sock := Sock,
+ client_sa := ClientSA,
+ send := Send,
+ write_pkg := Pkg,
+ write_byte := Byte} = State) ->
+ Data = ?DATA,
+ case Send(Sock, Data, ClientSA) of
+ ok ->
+ ?SEV_IPRINT("sent ~p bytes", [size(Data)]),
+ {ok, State#{write_pkg => Pkg + 1,
+ write_byte => Byte + size(Data)}};
+ {error, _} = ERROR ->
+ ERROR
+ end
+ end},
+ #{desc => "validate (send 2)",
+ cmd => fun(#{sock := Sock,
+ read_pkg := RPkg,
+ read_byte := RByte,
+ write_pkg := SPkg,
+ write_byte := SByte} = _State) ->
+ try socket:info(Sock) of
+ #{counters := Counters} ->
+ ?SEV_IPRINT("validate counters: "
+ "~n ~p", [Counters]),
+ traffic_sar_counters_validation(
+ Counters,
+ [{read_pkg, RPkg},
+ {read_byte, RByte},
+ {write_pkg, SPkg},
+ {write_byte, SByte},
+ {read_tries, any},
+ {write_tries, any}])
+ catch
+ C:E:S ->
+ ?SEV_EPRINT("Failed get socket info: "
+ "~n Class: ~p"
+ "~n Error: ~p"
+ "~n Stack: ~p", [C, E, S]),
+ {error, {socket_info_failed, {C, E, S}}}
+ end
+ end},
+ #{desc => "announce ready (send_and_validate 2)",
+ cmd => fun(#{tester := Tester}) ->
+ ?SEV_ANNOUNCE_READY(Tester, send_and_validate),
+ ok
+ end},
+
+
+ %% Termination
+ #{desc => "await terminate (from tester)",
+ cmd => fun(#{tester := Tester} = State) ->
+ case ?SEV_AWAIT_TERMINATE(Tester, tester) of
+ ok ->
+ {ok, maps:remove(tester, State)};
+ {error, _} = ERROR ->
+ ERROR
+ end
+ end},
+ #{desc => "close socket (just in case)",
+ cmd => fun(#{domain := local,
+ sock := Sock,
+ local_sa := #{path := Path}} = State) ->
+ ok = socket:close(Sock),
+ State1 =
+ unlink_path(Path,
+ fun() ->
+ maps:remove(local_sa, State)
+ end,
+ fun() -> State end),
+ {ok, maps:remove(lsock, State1)};
+ (#{sock := Sock} = State) ->
+ (catch socket:close(Sock)),
+ {ok, maps:remove(sock, State)}
+ end},
+
+ %% *** We are done ***
+ ?SEV_FINISH_NORMAL
+ ],
+
+ ClientSeq =
+ [
+ %% *** Wait for start order part ***
+ #{desc => "await start (from tester)",
+ cmd => fun(#{domain := local} = State) ->
+ {Tester, Path} = ?SEV_AWAIT_START(),
+ {ok, State#{tester => Tester, server_path => Path}};
+ (State) ->
+ {Tester, Port} = ?SEV_AWAIT_START(),
+ {ok, State#{tester => Tester, server_port => Port}}
+ end},
+ #{desc => "monitor tester",
+ cmd => fun(#{tester := Tester} = _State) ->
+ _MRef = erlang:monitor(process, Tester),
+ ok
+ end},
+
+ %% *** Init part ***
+ #{desc => "which server (local) address",
+ cmd => fun(#{domain := local = Domain,
+ server_path := Path} = State) ->
+ LSA = which_local_socket_addr(Domain),
+ SSA = #{family => Domain, path => Path},
+ {ok, State#{local_sa => LSA, server_sa => SSA}};
+ (#{domain := Domain, server_port := Port} = State) ->
+ LSA = which_local_socket_addr(Domain),
+ SSA = LSA#{port => Port},
+ {ok, State#{local_sa => LSA, server_sa => SSA}}
+ end},
+ #{desc => "create socket",
+ cmd => fun(#{domain := Domain,
+ proto := Proto} = State) ->
+ case socket:open(Domain, dgram, Proto) of
+ {ok, Sock} ->
+ {ok, State#{sock => Sock}};
+ {error, _} = ERROR ->
+ ERROR
+ end
+ end},
+ #{desc => "bind to local address",
+ cmd => fun(#{sock := Sock, local_sa := LSA} = _State) ->
+ case socket:bind(Sock, LSA) of
+ {ok, _Port} ->
+ ok;
+ {error, _} = ERROR ->
+ ERROR
+ end
+ end},
+ #{desc => "initial counter validation (=zero)",
+ cmd => fun(#{sock := Sock} = _State) ->
+ try socket:info(Sock) of
+ #{counters := Counters} ->
+ ?SEV_IPRINT("Validate initial counters: "
+ "~n ~p", [Counters]),
+ traffic_sar_counters_validation(Counters)
+ catch
+ C:E:S ->
+ ?SEV_EPRINT("Failed get socket info: "
+ "~n Class: ~p"
+ "~n Error: ~p"
+ "~n Stack: ~p", [C, E, S]),
+ {error, {socket_info_failed, {C, E, S}}}
+ end
+ end},
+ #{desc => "announce ready (init)",
+ cmd => fun(#{tester := Tester}) ->
+ ?SEV_ANNOUNCE_READY(Tester, init),
+ ok
+ end},
+
+ %% The actual test
+ #{desc => "await continue (send_and_validate 1)",
+ cmd => fun(#{tester := Tester} = _State) ->
+ ?SEV_AWAIT_CONTINUE(Tester, tester, send_and_validate)
+ end},
+ #{desc => "send (1)",
+ cmd => fun(#{sock := Sock,
+ send := Send,
+ server_sa := ServerSA} = State) ->
+ Data = ?DATA,
+ case Send(Sock, Data, ServerSA) of
+ ok ->
+ ?SEV_IPRINT("sent ~p bytes", [size(Data)]),
+ {ok, State#{write_pkg => 1,
+ write_byte => size(Data)}};
+ {error, _} = ERROR ->
+ ERROR
+ end
+ end},
+ #{desc => "validate (send 1)",
+ cmd => fun(#{sock := Sock,
+ write_pkg := SPkg,
+ write_byte := SByte} = _State) ->
+ try socket:info(Sock) of
+ #{counters := Counters} ->
+ ?SEV_IPRINT("validate counters: "
+ "~n ~p", [Counters]),
+ traffic_sar_counters_validation(
+ Counters,
+ [{write_pkg, SPkg},
+ {write_byte, SByte},
+ {write_tries, any}])
+ catch
+ C:E:S ->
+ ?SEV_EPRINT("Failed get socket info: "
+ "~n Class: ~p"
+ "~n Error: ~p"
+ "~n Stack: ~p", [C, E, S]),
+ {error, {socket_info_failed, {C, E, S}}}
+ end
+ end},
+ #{desc => "announce ready (send_and_validate 1)",
+ cmd => fun(#{tester := Tester}) ->
+ ?SEV_ANNOUNCE_READY(Tester, send_and_validate),
+ ok
+ end},
+
+ #{desc => "await continue (recv_and_validate 1)",
+ cmd => fun(#{tester := Tester} = _State) ->
+ ?SEV_AWAIT_CONTINUE(Tester, tester, recv_and_validate)
+ end},
+ #{desc => "recv (1)",
+ cmd => fun(#{sock := Sock,
+ recv := Recv,
+ server_sa := ServerSA} = State) ->
+ case Recv(Sock) of
+ {ok, {ServerSA, Data}} ->
+ ?SEV_IPRINT("recv ~p bytes", [size(Data)]),
+ {ok, State#{read_pkg => 1,
+ read_byte => size(Data)}};
+ {error, _} = ERROR ->
+ ERROR
+ end
+ end},
+ #{desc => "validate (recv 1)",
+ cmd => fun(#{sock := Sock,
+ read_pkg := RPkg,
+ read_byte := RByte,
+ write_pkg := SPkg,
+ write_byte := SByte} = _State) ->
+ try socket:info(Sock) of
+ #{counters := Counters} ->
+ ?SEV_IPRINT("validate counters: "
+ "~n ~p", [Counters]),
+ traffic_sar_counters_validation(
+ Counters,
+ [{read_pkg, RPkg},
+ {read_byte, RByte},
+ {write_pkg, SPkg},
+ {write_byte, SByte},
+ {read_tries, any},
+ {write_tries, any}])
+ catch
+ C:E:S ->
+ ?SEV_EPRINT("Failed get socket info: "
+ "~n Class: ~p"
+ "~n Error: ~p"
+ "~n Stack: ~p", [C, E, S]),
+ {error, {socket_info_failed, {C, E, S}}}
+ end
+ end},
+ #{desc => "announce ready (recv_and_validate 1)",
+ cmd => fun(#{tester := Tester}) ->
+ ?SEV_ANNOUNCE_READY(Tester, recv_and_validate),
+ ok
+ end},
+
+ #{desc => "await continue (send_and_validate 2)",
+ cmd => fun(#{tester := Tester} = _State) ->
+ ?SEV_AWAIT_CONTINUE(Tester, tester, send_and_validate)
+ end},
+ #{desc => "send (2)",
+ cmd => fun(#{sock := Sock,
+ send := Send,
+ server_sa := ServerSA,
+ write_pkg := SPkg,
+ write_byte := SByte} = State) ->
+ Data = ?DATA,
+ case Send(Sock, Data, ServerSA) of
+ ok ->
+ ?SEV_IPRINT("sent ~p bytes", [size(Data)]),
+ {ok, State#{write_pkg => SPkg + 1,
+ write_byte => SByte + size(Data)}};
+ {error, _} = ERROR ->
+ ERROR
+ end
+ end},
+ #{desc => "validate (send 2)",
+ cmd => fun(#{sock := Sock,
+ read_pkg := RPkg,
+ read_byte := RByte,
+ write_pkg := SPkg,
+ write_byte := SByte} = _State) ->
+ try socket:info(Sock) of
+ #{counters := Counters} ->
+ ?SEV_IPRINT("validate counters: "
+ "~n ~p", [Counters]),
+ traffic_sar_counters_validation(
+ Counters,
+ [{read_pkg, RPkg},
+ {read_byte, RByte},
+ {write_pkg, SPkg},
+ {write_byte, SByte},
+ {read_tries, any},
+ {write_tries, any}])
+ catch
+ C:E:S ->
+ ?SEV_EPRINT("Failed get socket info: "
+ "~n Class: ~p"
+ "~n Error: ~p"
+ "~n Stack: ~p", [C, E, S]),
+ {error, {socket_info_failed, {C, E, S}}}
+ end
+ end},
+ #{desc => "announce ready (send_and_validate 2)",
+ cmd => fun(#{tester := Tester}) ->
+ ?SEV_ANNOUNCE_READY(Tester, send_and_validate),
+ ok
+ end},
+
+ #{desc => "await continue (recv_and_validate 2)",
+ cmd => fun(#{tester := Tester} = _State) ->
+ ?SEV_AWAIT_CONTINUE(Tester, tester, recv_and_validate)
+ end},
+ #{desc => "recv (2)",
+ cmd => fun(#{sock := Sock,
+ server_sa := ServerSA,
+ recv := Recv,
+ read_pkg := RPkg,
+ read_byte := RByte} = State) ->
+ case Recv(Sock) of
+ {ok, {ServerSA, Data}} ->
+ ?SEV_IPRINT("recv ~p bytes", [size(Data)]),
+ {ok, State#{read_pkg => RPkg + 1,
+ read_byte => RByte + size(Data)}};
+ {error, _} = ERROR ->
+ ERROR
+ end
+ end},
+ #{desc => "validate (recv 2)",
+ cmd => fun(#{sock := Sock,
+ read_pkg := RPkg,
+ read_byte := RByte,
+ write_pkg := SPkg,
+ write_byte := SByte} = _State) ->
+ try socket:info(Sock) of
+ #{counters := Counters} ->
+ ?SEV_IPRINT("validate counters: "
+ "~n ~p", [Counters]),
+ traffic_sar_counters_validation(
+ Counters,
+ [{read_pkg, RPkg},
+ {read_byte, RByte},
+ {write_pkg, SPkg},
+ {write_byte, SByte},
+ {read_tries, any},
+ {write_tries, any}])
+ catch
+ C:E:S ->
+ ?SEV_EPRINT("Failed get socket info: "
+ "~n Class: ~p"
+ "~n Error: ~p"
+ "~n Stack: ~p", [C, E, S]),
+ {error, {socket_info_failed, {C, E, S}}}
+ end
+ end},
+ #{desc => "announce ready (recv_and_validate 2)",
+ cmd => fun(#{tester := Tester}) ->
+ ?SEV_ANNOUNCE_READY(Tester, recv_and_validate),
+ ok
+ end},
+
+ %% Termination
+ #{desc => "await terminate (from tester)",
+ cmd => fun(#{tester := Tester} = State) ->
+ case ?SEV_AWAIT_TERMINATE(Tester, tester) of
+ ok ->
+ {ok, maps:remove(tester, State)};
+ {error, _} = ERROR ->
+ ERROR
+ end
+ end},
+ #{desc => "close connection socket",
+ cmd => fun(#{domain := local,
+ sock := Sock,
+ local_sa := #{path := Path}} = State) ->
+ ok = socket:close(Sock),
+ State1 =
+ unlink_path(Path,
+ fun() ->
+ maps:remove(local_sa, State)
+ end,
+ fun() -> State end),
+ {ok, maps:remove(sock, State1)};
+ (#{sock := Sock} = State) ->
+ socket:close(Sock),
+ {ok, maps:remove(sock, State)}
+ end},
+
+ %% *** We are done ***
+ ?SEV_FINISH_NORMAL
+ ],
+
+
+ TesterSeq =
+ [
+ %% *** Init part ***
+ #{desc => "monitor server",
+ cmd => fun(#{server := Pid} = _State) ->
+ _MRef = erlang:monitor(process, Pid),
+ ok
+ end},
+ #{desc => "monitor client",
+ cmd => fun(#{client := Pid} = _State) ->
+ _MRef = erlang:monitor(process, Pid),
+ ok
+ end},
+
+ %% Start the server
+ #{desc => "order server start",
+ cmd => fun(#{server := Pid} = _State) ->
+ ?SEV_ANNOUNCE_START(Pid),
+ ok
+ end},
+ #{desc => "await server ready (init)",
+ cmd => fun(#{domain := local,
+ server := Pid} = State) ->
+ {ok, Path} = ?SEV_AWAIT_READY(Pid, server, init),
+ {ok, State#{path => Path}};
+ (#{server := Pid} = State) ->
+ {ok, Port} = ?SEV_AWAIT_READY(Pid, server, init),
+ {ok, State#{port => Port}}
+ end},
+
+ %% Start the client
+ #{desc => "order client start",
+ cmd => fun(#{domain := local,
+ client := Pid,
+ path := Path} = _State) ->
+ ?SEV_ANNOUNCE_START(Pid, Path),
+ ok;
+ (#{client := Pid,
+ port := Port} = _State) ->
+ ?SEV_ANNOUNCE_START(Pid, Port),
+ ok
+ end},
+ #{desc => "await client ready (init)",
+ cmd => fun(#{client := Pid} = _State) ->
+ ok = ?SEV_AWAIT_READY(Pid, client, init)
+ end},
+
+ %% *** The actual test ***
+
+ #{desc => "order server to continue (recv_and_validate 1)",
+ cmd => fun(#{server := Server} = _State) ->
+ ?SEV_ANNOUNCE_CONTINUE(Server, recv_and_validate),
+ ok
+ end},
+ #{desc => "order client to continue (send_and_validate 1)",
+ cmd => fun(#{client := Client} = _State) ->
+ ?SEV_ANNOUNCE_CONTINUE(Client, send_and_validate),
+ ok
+ end},
+ #{desc => "await client ready (send_and_validate 1)",
+ cmd => fun(#{client := Client} = _State) ->
+ ?SEV_AWAIT_READY(Client, client, send_and_validate)
+ end},
+ #{desc => "await server ready (recv_and_validate 1)",
+ cmd => fun(#{server := Server} = _State) ->
+ ?SEV_AWAIT_READY(Server, server, recv_and_validate)
+ end},
+
+ ?SEV_SLEEP(?SECS(1)),
+
+ #{desc => "order client to continue (recv_and_validate 1)",
+ cmd => fun(#{client := Client} = _State) ->
+ ?SEV_ANNOUNCE_CONTINUE(Client, recv_and_validate),
+ ok
+ end},
+ #{desc => "order server to continue (send_and_validate 1)",
+ cmd => fun(#{server := Server} = _State) ->
+ ?SEV_ANNOUNCE_CONTINUE(Server, send_and_validate),
+ ok
+ end},
+ #{desc => "await server ready (send_and_validate 1)",
+ cmd => fun(#{server := Server} = _State) ->
+ ?SEV_AWAIT_READY(Server, server, send_and_validate)
+ end},
+ #{desc => "await client ready (recv_and_validate 1)",
+ cmd => fun(#{client := Client} = _State) ->
+ ?SEV_AWAIT_READY(Client, client, recv_and_validate)
+ end},
+
+ ?SEV_SLEEP(?SECS(1)),
+
+ #{desc => "order server to continue (recv_and_validate 2)",
+ cmd => fun(#{server := Server} = _State) ->
+ ?SEV_ANNOUNCE_CONTINUE(Server, recv_and_validate),
+ ok
+ end},
+ #{desc => "order client to continue (send_and_validate 2)",
+ cmd => fun(#{client := Client} = _State) ->
+ ?SEV_ANNOUNCE_CONTINUE(Client, send_and_validate),
+ ok
+ end},
+ #{desc => "await client ready (send_and_validate 2)",
+ cmd => fun(#{client := Client} = _State) ->
+ ?SEV_AWAIT_READY(Client, client, send_and_validate)
+ end},
+ #{desc => "await server ready (recv_and_validate 2)",
+ cmd => fun(#{server := Server} = _State) ->
+ ?SEV_AWAIT_READY(Server, server, recv_and_validate)
+ end},
+
+ ?SEV_SLEEP(?SECS(1)),
+
+ #{desc => "order client to continue (recv_and_validate 2)",
+ cmd => fun(#{client := Client} = _State) ->
+ ?SEV_ANNOUNCE_CONTINUE(Client, recv_and_validate),
+ ok
+ end},
+ #{desc => "order server to continue (send_and_validate 2)",
+ cmd => fun(#{server := Server} = _State) ->
+ ?SEV_ANNOUNCE_CONTINUE(Server, send_and_validate),
+ ok
+ end},
+ #{desc => "await server ready (send_and_validate 2)",
+ cmd => fun(#{server := Server} = _State) ->
+ ?SEV_AWAIT_READY(Server, server, send_and_validate)
+ end},
+ #{desc => "await client ready (recv_and_validate 2)",
+ cmd => fun(#{client := Client} = _State) ->
+ ?SEV_AWAIT_READY(Client, client, recv_and_validate)
+ end},
+
+ %% *** Termination ***
+ #{desc => "order client to terminate",
+ cmd => fun(#{client := Client} = _State) ->
+ ?SEV_ANNOUNCE_TERMINATE(Client),
+ ok
+ end},
+ #{desc => "await client termination",
+ cmd => fun(#{client := Client} = State) ->
+ ?SEV_AWAIT_TERMINATION(Client),
+ State1 = maps:remove(client, State),
+ {ok, State1}
+ end},
+ #{desc => "order server to terminate",
+ cmd => fun(#{server := Server} = _State) ->
+ ?SEV_ANNOUNCE_TERMINATE(Server),
+ ok
+ end},
+ #{desc => "await server termination",
+ cmd => fun(#{server := Server} = State) ->
+ ?SEV_AWAIT_TERMINATION(Server),
+ State1 = maps:remove(server, State),
+ {ok, State1}
+ end},
+
+ %% *** We are done ***
+ ?SEV_FINISH_NORMAL
+ ],
+
+ i("start server evaluator"),
+ ServerInitState = InitState#{host => local_host()},
+ Server = ?SEV_START("server", ServerSeq, ServerInitState),
+
+ i("start client evaluator(s)"),
+ ClientInitState = InitState#{host => local_host()},
+ Client = ?SEV_START("client", ClientSeq, ClientInitState),
+
+ i("start 'tester' evaluator"),
+ TesterInitState = #{server => Server#ev.pid,
+ client => Client#ev.pid},
+ Tester = ?SEV_START("tester", TesterSeq, TesterInitState),
+
+ i("await evaluator"),
+ ok = ?SEV_AWAIT_FINISH([Server, Client, Tester]).
+
+
+
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% This test case is intended to test that the send and recv functions
%% behave as expected when sending and/or reading chunks.
%% First send data in one "big" chunk, and read it in "small" chunks.
generated by cgit v1.2.3 (git 2.25.1) at 2024-08-23 18:45:11 +0000