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128-duplex-tcp-socket.t
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128-duplex-tcp-socket.t
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# vim:set ft= ts=4 sw=4 et fdm=marker:
use Test::Nginx::Socket::Lua;
repeat_each(2);
plan tests => repeat_each() * (blocks() * 3 + 2);
our $HtmlDir = html_dir;
$ENV{TEST_NGINX_MEMCACHED_PORT} ||= 11211;
$ENV{TEST_NGINX_RESOLVER} ||= '8.8.8.8';
#log_level 'warn';
log_level 'debug';
no_long_string();
#no_diff();
run_tests();
__DATA__
=== TEST 1: pipelined memcached requests (sent one byte at a time)
--- config
server_tokens off;
location /t {
#set $port 5000;
set $port $TEST_NGINX_MEMCACHED_PORT;
content_by_lua '
local sock = ngx.socket.tcp()
local port = ngx.var.port
local ok, err = sock:connect("127.0.0.1", port)
if not ok then
ngx.say("failed to connect: ", err)
return
end
ngx.say("connected: ", ok)
local req = "flush_all\\r\\nget foo\\r\\nget bar\\r\\n"
-- req = "OK"
local send_idx = 1
local function writer()
local sub = string.sub
while send_idx <= #req do
local bytes, err = sock:send(sub(req, send_idx, send_idx))
if not bytes then
ngx.say("failed to send request: ", err)
return
end
-- if send_idx % 2 == 0 then
ngx.sleep(0.001)
-- end
send_idx = send_idx + 1
end
-- ngx.say("request sent.")
end
local ok, err = ngx.thread.spawn(writer)
if not ok then
ngx.say("failed to spawn writer thread: ", err)
return
end
for i = 1, 3 do
local line, err, part = sock:receive()
if line then
ngx.say("received: ", line)
else
ngx.say("failed to receive a line: ", err, " [", part, "]")
break
end
end
ok, err = sock:setkeepalive()
ngx.say("setkeepalive: ", ok, " ", err)
';
}
--- request
GET /t
--- response_body
connected: 1
received: OK
received: END
received: END
setkeepalive: 1 nil
--- no_error_log
[error]
=== TEST 2: read timeout errors won't affect writing
--- config
server_tokens off;
lua_socket_log_errors off;
location /t {
#set $port 5000;
set $port $TEST_NGINX_MEMCACHED_PORT;
content_by_lua '
local sock = ngx.socket.tcp()
local port = ngx.var.port
local ok, err = sock:connect("127.0.0.1", port)
if not ok then
ngx.say("failed to connect: ", err)
return
end
ngx.say("connected: ", ok)
local req = "flush_all\\r\\n"
-- req = "OK"
local send_idx = 1
sock:settimeout(1)
local function writer()
local sub = string.sub
while send_idx <= #req do
local bytes, err = sock:send(sub(req, send_idx, send_idx))
if not bytes then
ngx.say("failed to send request: ", err)
return
end
ngx.sleep(0.001)
send_idx = send_idx + 1
end
-- ngx.say("request sent.")
end
local ok, err = ngx.thread.spawn(writer)
if not ok then
ngx.say("failed to spawn writer thread: ", err)
return
end
local data = ""
local ntm = 0
local done = false
for i = 1, 300 do
local line, err, part = sock:receive()
if not line then
if part then
data = data .. part
end
if err ~= "timeout" then
ngx.say("failed to receive: ", err)
return
end
ntm = ntm + 1
else
data = data .. line
ngx.say("received: ", data)
done = true
break
end
end
if not done then
ngx.say("partial read: ", data)
end
ngx.say("read timed out: ", ntm)
ok, err = sock:close()
ngx.say("close: ", ok, " ", err)
';
}
--- request
GET /t
--- response_body_like chop
^connected: 1
(?:received: OK|failed to send request: timeout
partial read: )
read timed out: [1-9]\d*
close: 1 nil$
--- no_error_log
[error]
=== TEST 3: writes are rejected while reads are not
--- config
server_tokens off;
lua_socket_log_errors off;
location /t {
#set $port 5000;
set $port 7658;
content_by_lua '
local sock = ngx.socket.tcp()
local port = ngx.var.port
local ok, err = sock:connect("127.0.0.1", port)
if not ok then
ngx.say("failed to connect: ", err)
return
end
ngx.say("connected: ", ok)
local req = "flush_all\\r\\n"
-- req = "OK"
local send_idx = 1
local function writer()
local sub = string.sub
while send_idx <= #req do
local bytes, err = sock:send(sub(req, send_idx, send_idx))
if not bytes then
ngx.say("failed to send request: ", err)
return
end
ngx.sleep(0.001)
send_idx = send_idx + 1
end
-- ngx.say("request sent.")
end
local ok, err = ngx.thread.spawn(writer)
if not ok then
ngx.say("failed to spawn writer thread: ", err)
return
end
local data = ""
local ntm = 0
local done = false
for i = 1, 3 do
local res, err, part = sock:receive(1)
if not res then
ngx.say("failed to receive: ", err)
return
else
data = data .. res
end
ngx.sleep(0.001)
end
ngx.say("received: ", data)
ok, err = sock:close()
ngx.say("close: ", ok, " ", err)
';
}
--- request
GET /t
--- response_body_like chop
^connected: 1
received: OK!
close: (?:nil socket busy writing|1 nil
failed to send request: closed)$
--- tcp_listen: 7658
--- tcp_shutdown: 0
--- tcp_reply: OK!
--- tcp_no_close: 1
--- no_error_log
[error]
=== TEST 4: reads are rejected while writes are not
--- config
server_tokens off;
lua_socket_log_errors off;
location /t {
#set $port 5000;
set $port 7658;
content_by_lua '
local sock = ngx.socket.tcp()
local port = ngx.var.port
local ok, err = sock:connect("127.0.0.1", port)
if not ok then
ngx.say("failed to connect: ", err)
return
end
ngx.say("connected: ", ok)
local req = "flush_all\\r\\n"
-- req = "OK"
local send_idx = 1
local function writer()
local sub = string.sub
while send_idx <= #req do
local bytes, err = sock:send(sub(req, send_idx, send_idx))
if not bytes then
ngx.say("failed to send request: ", err)
return
end
-- ngx.say("sent: ", bytes)
ngx.sleep(0.001)
send_idx = send_idx + 1
end
ngx.say("request sent.")
local ok, err = sock:close()
ngx.say("close: ", ok, " ", err)
end
local ok, err = ngx.thread.spawn(writer)
if not ok then
ngx.say("failed to spawn writer thread: ", err)
return
end
local data = ""
local ntm = 0
local aborted = false
for i = 1, 3 do
if not aborted then
local res, err, part = sock:receive(1)
if not res then
ngx.say("failed to receive: ", err)
aborted = true
else
data = data .. res
end
end
ngx.sleep(0.001)
end
if not aborted then
ngx.say("received: ", data)
end
';
}
--- request
GET /t
--- response_body
connected: 1
failed to receive: closed
request sent.
close: 1 nil
--- stap2
F(ngx_http_lua_socket_tcp_finalize_write_part) {
print_ubacktrace()
}
--- stap_out2
--- tcp_listen: 7658
--- tcp_shutdown: 1
--- tcp_query eval: "flush_all\r\n"
--- tcp_query_len: 11
--- no_error_log
[error]
--- wait: 0.05
=== TEST 5: concurrent socket operations while connecting
--- config
server_tokens off;
lua_socket_log_errors off;
resolver $TEST_NGINX_RESOLVER ipv6=off;
location /t {
content_by_lua '
local sock = ngx.socket.tcp()
local function f()
ngx.sleep(0.001)
local res, err = sock:receive(1)
ngx.say("receive: ", res, " ", err)
local bytes, err = sock:send("hello")
ngx.say("send: ", bytes, " ", err)
local ok, err = sock:close()
ngx.say("close: ", ok, " ", err)
local ok, err = sock:getreusedtimes()
ngx.say("getreusedtimes: ", ok, " ", err)
local ok, err = sock:setkeepalive()
ngx.say("setkeepalive: ", ok, " ", err)
local ok, err = sock:connect("127.0.0.1", $TEST_NGINX_MEMCACHED_PORT)
ngx.say("connect: ", ok, " ", err)
end
local ok, err = ngx.thread.spawn(f)
if not ok then
ngx.say("failed to spawn writer thread: ", err)
return
end
sock:settimeout(300)
local ok, err = sock:connect("106.184.1.99", 12345)
ngx.say("connect: ", ok, " ", err)
local ok, err = sock:close()
ngx.say("close: ", ok, " ", err)
';
}
--- request
GET /t
--- response_body
receive: nil socket busy connecting
send: nil socket busy connecting
close: nil socket busy connecting
getreusedtimes: 0 nil
setkeepalive: nil socket busy connecting
connect: nil socket busy connecting
connect: nil timeout
close: nil closed
--- no_error_log
[error]
=== TEST 6: concurrent operations while resolving
--- config
server_tokens off;
lua_socket_log_errors off;
resolver agentzh.org:12345;
resolver_timeout 300ms;
location /t {
content_by_lua '
local sock = ngx.socket.tcp()
local function f()
ngx.sleep(0.001)
local res, err = sock:receive(1)
ngx.say("receive: ", res, " ", err)
local bytes, err = sock:send("hello")
ngx.say("send: ", bytes, " ", err)
local ok, err = sock:close()
ngx.say("close: ", ok, " ", err)
local ok, err = sock:getreusedtimes()
ngx.say("getreusedtimes: ", ok, " ", err)
local ok, err = sock:setkeepalive()
ngx.say("setkeepalive: ", ok, " ", err)
local ok, err = sock:connect("127.0.0.1", $TEST_NGINX_MEMCACHED_PORT)
ngx.say("connect: ", ok, " ", err)
end
local ok, err = ngx.thread.spawn(f)
if not ok then
ngx.say("failed to spawn writer thread: ", err)
return
end
sock:settimeout(300)
local ok, err = sock:connect("some2.agentzh.org", 12345)
ngx.say("connect: ", ok, " ", err)
local ok, err = sock:close()
ngx.say("close: ", ok, " ", err)
';
}
--- request
GET /t
--- response_body
receive: nil closed
send: nil closed
close: nil closed
getreusedtimes: nil closed
setkeepalive: nil closed
connect: nil socket busy connecting
connect: nil some2.agentzh.org could not be resolved (110: Operation timed out)
close: nil closed
--- no_error_log
[error]
=== TEST 7: concurrent operations while reading (receive)
--- config
server_tokens off;
lua_socket_log_errors off;
location /t {
content_by_lua '
local sock = ngx.socket.tcp()
local ready = false
local function f()
while not ready do
ngx.sleep(0.001)
end
local res, err = sock:receive(1)
ngx.say("receive: ", res, " ", err)
local bytes, err = sock:send("flush_all")
ngx.say("send: ", bytes, " ", err)
local ok, err = sock:close()
ngx.say("close: ", ok, " ", err)
local ok, err = sock:getreusedtimes()
ngx.say("getreusedtimes: ", ok, " ", err)
local ok, err = sock:setkeepalive()
ngx.say("setkeepalive: ", ok, " ", err)
local ok, err = sock:connect("127.0.0.1", $TEST_NGINX_MEMCACHED_PORT)
ngx.say("connect: ", ok, " ", err)
end
local ok, err = ngx.thread.spawn(f)
if not ok then
ngx.say("failed to spawn writer thread: ", err)
return
end
sock:settimeout(300)
local ok, err = sock:connect("127.0.0.1", $TEST_NGINX_MEMCACHED_PORT)
ngx.say("connect: ", ok, " ", err)
ready = true
local res, err = sock:receive(1)
ngx.say("receive: ", res, " ", err)
local ok, err = sock:close()
ngx.say("close: ", ok, " ", err)
';
}
--- request
GET /t
--- response_body
connect: 1 nil
receive: nil socket busy reading
send: 9 nil
close: nil socket busy reading
getreusedtimes: 0 nil
setkeepalive: nil socket busy reading
connect: nil socket busy reading
receive: nil timeout
close: 1 nil
--- no_error_log
[error]
=== TEST 8: concurrent operations while reading (receiveuntil)
--- config
server_tokens off;
lua_socket_log_errors off;
location /t {
content_by_lua '
local ready = false
local sock = ngx.socket.tcp()
local function f()
while not ready do
ngx.sleep(0.001)
end
local res, err = sock:receive(1)
ngx.say("receive: ", res, " ", err)
local bytes, err = sock:send("flush_all")
ngx.say("send: ", bytes, " ", err)
local ok, err = sock:close()
ngx.say("close: ", ok, " ", err)
local ok, err = sock:getreusedtimes()
ngx.say("getreusedtimes: ", ok, " ", err)
local ok, err = sock:setkeepalive()
ngx.say("setkeepalive: ", ok, " ", err)
local ok, err = sock:connect("127.0.0.1", $TEST_NGINX_MEMCACHED_PORT)
ngx.say("connect: ", ok, " ", err)
end
local ok, err = ngx.thread.spawn(f)
if not ok then
ngx.say("failed to spawn writer thread: ", err)
return
end
sock:settimeout(300)
local ok, err = sock:connect("127.0.0.1", $TEST_NGINX_MEMCACHED_PORT)
ngx.say("connect: ", ok, " ", err)
ready = true
local it, err = sock:receiveuntil("\\r\\n")
if not it then
ngx.say("receiveuntil() failed: ", err)
return
end
local res, err = it()
ngx.say("receiveuntil() iterator: ", res, " ", err)
local ok, err = sock:close()
ngx.say("close: ", ok, " ", err)
';
}
--- request
GET /t
--- response_body
connect: 1 nil
receive: nil socket busy reading
send: 9 nil
close: nil socket busy reading
getreusedtimes: 0 nil
setkeepalive: nil socket busy reading
connect: nil socket busy reading
receiveuntil() iterator: nil timeout
close: 1 nil
--- no_error_log
[error]