# frozen_string_literal: true begin require "socket" require "io/nonblock" require "io/wait" rescue LoadError end require "test/unit" require "tempfile" require "timeout" class TestSocketNonblock < Test::Unit::TestCase def test_accept_nonblock serv = Socket.new(Socket::AF_INET, Socket::SOCK_STREAM, 0) serv.bind(Socket.sockaddr_in(0, "127.0.0.1")) serv.listen(5) assert_raise(IO::WaitReadable) { serv.accept_nonblock } assert_equal :wait_readable, serv.accept_nonblock(exception: false) assert_raise(IO::WaitReadable) { serv.accept_nonblock(exception: true) } c = Socket.new(Socket::AF_INET, Socket::SOCK_STREAM, 0) c.connect(serv.getsockname) begin s, sockaddr = serv.accept_nonblock rescue IO::WaitReadable IO.select [serv] s, sockaddr = serv.accept_nonblock end assert_equal(Socket.unpack_sockaddr_in(c.getsockname), Socket.unpack_sockaddr_in(sockaddr)) if s.respond_to?(:nonblock?) assert_predicate(s, :nonblock?, 'accepted socket is non-blocking') end ensure serv.close if serv c.close if c s.close if s end def test_connect_nonblock serv = Socket.new(Socket::AF_INET, Socket::SOCK_STREAM, 0) serv.bind(Socket.sockaddr_in(0, "127.0.0.1")) serv.listen(5) c = Socket.new(Socket::AF_INET, Socket::SOCK_STREAM, 0) servaddr = serv.getsockname begin c.connect_nonblock(servaddr) rescue IO::WaitWritable IO.select nil, [c] assert_nothing_raised { begin c.connect_nonblock(servaddr) rescue Errno::EISCONN end } end s, sockaddr = serv.accept assert_equal(Socket.unpack_sockaddr_in(c.getsockname), Socket.unpack_sockaddr_in(sockaddr)) ensure serv.close if serv c.close if c s.close if s end def test_connect_nonblock_no_exception serv = Socket.new(:INET, :STREAM) serv.bind(Socket.sockaddr_in(0, "127.0.0.1")) serv.listen(5) c = Socket.new(:INET, :STREAM) servaddr = serv.getsockname rv = c.connect_nonblock(servaddr, exception: false) case rv when 0 # some OSes return immediately on non-blocking local connect() else assert_equal :wait_writable, rv end assert_equal([ [], [c], [] ], IO.select(nil, [c], nil, 60)) assert_equal(0, c.connect_nonblock(servaddr, exception: false), 'there should be no EISCONN error') s, sockaddr = serv.accept assert_equal(Socket.unpack_sockaddr_in(c.getsockname), Socket.unpack_sockaddr_in(sockaddr)) ensure serv.close if serv c.close if c s.close if s end def test_udp_recvfrom_nonblock u1 = UDPSocket.new u2 = UDPSocket.new u1.bind("127.0.0.1", 0) assert_raise(IO::WaitReadable) { u1.recvfrom_nonblock(100) } assert_raise(IO::WaitReadable, Errno::EINVAL) { u2.recvfrom_nonblock(100) } u2.send("aaa", 0, u1.getsockname) IO.select [u1] mesg, inet_addr = u1.recvfrom_nonblock(100) assert_equal(4, inet_addr.length) assert_equal("aaa", mesg) _, port, _, _ = inet_addr u2_port, _ = Socket.unpack_sockaddr_in(u2.getsockname) assert_equal(u2_port, port) assert_raise(IO::WaitReadable) { u1.recvfrom_nonblock(100) } u2.send("", 0, u1.getsockname) assert_nothing_raised("cygwin 1.5.19 has a problem to send an empty UDP packet. [ruby-dev:28915]") { Timeout.timeout(1) { IO.select [u1] } } mesg, inet_addr = u1.recvfrom_nonblock(100) assert_equal("", mesg) ensure u1.close if u1 u2.close if u2 end def test_udp_recv_nonblock u1 = UDPSocket.new u2 = UDPSocket.new u1.bind("127.0.0.1", 0) assert_raise(IO::WaitReadable) { u1.recv_nonblock(100) } assert_raise(IO::WaitReadable, Errno::EINVAL) { u2.recv_nonblock(100) } u2.send("aaa", 0, u1.getsockname) IO.select [u1] mesg = u1.recv_nonblock(100) assert_equal("aaa", mesg) assert_raise(IO::WaitReadable) { u1.recv_nonblock(100) } u2.send("", 0, u1.getsockname) assert_nothing_raised("cygwin 1.5.19 has a problem to send an empty UDP packet. [ruby-dev:28915]") { Timeout.timeout(1) { IO.select [u1] } } mesg = u1.recv_nonblock(100) assert_equal("", mesg) buf = "short".dup out = "hello world" * 4 out.freeze u2.send(out, 0, u1.getsockname) IO.select [u1] rv = u1.recv_nonblock(100, 0, buf) assert_equal rv.object_id, buf.object_id assert_equal out, rv assert_equal out, buf ensure u1.close if u1 u2.close if u2 end def test_socket_recvfrom_nonblock s1 = Socket.new(Socket::AF_INET, Socket::SOCK_DGRAM, 0) s1.bind(Socket.sockaddr_in(0, "127.0.0.1")) s2 = Socket.new(Socket::AF_INET, Socket::SOCK_DGRAM, 0) assert_raise(IO::WaitReadable) { s1.recvfrom_nonblock(100) } assert_raise(IO::WaitReadable, Errno::EINVAL) { s2.recvfrom_nonblock(100) } s2.send("aaa", 0, s1.getsockname) IO.select [s1] mesg, sockaddr = s1.recvfrom_nonblock(100) assert_equal("aaa", mesg) port, _ = Socket.unpack_sockaddr_in(sockaddr) s2_port, _ = Socket.unpack_sockaddr_in(s2.getsockname) assert_equal(s2_port, port) ensure s1.close if s1 s2.close if s2 end def tcp_pair serv = TCPServer.new("127.0.0.1", 0) _, port, _, addr = serv.addr c = TCPSocket.new(addr, port) s = serv.accept if block_given? begin yield c, s ensure c.close if !c.closed? s.close if !s.closed? end else return c, s end ensure serv.close if serv && !serv.closed? end def udp_pair s1 = UDPSocket.new s1.bind('127.0.0.1', 0) _, port1, _, addr1 = s1.addr s2 = UDPSocket.new s2.bind('127.0.0.1', 0) _, port2, _, addr2 = s2.addr s1.connect(addr2, port2) s2.connect(addr1, port1) if block_given? begin yield s1, s2 ensure s1.close if !s1.closed? s2.close if !s2.closed? end else return s1, s2 end end def test_tcp_recv_nonblock c, s = tcp_pair assert_raise(IO::WaitReadable) { c.recv_nonblock(100) } assert_raise(IO::WaitReadable) { s.recv_nonblock(100) } c.write("abc") IO.select [s] assert_equal("a", s.recv_nonblock(1)) assert_equal("bc", s.recv_nonblock(100)) assert_raise(IO::WaitReadable) { s.recv_nonblock(100) } ensure c.close if c s.close if s end def test_read_nonblock c, s = tcp_pair assert_raise(IO::WaitReadable) { c.read_nonblock(100) } assert_raise(IO::WaitReadable) { s.read_nonblock(100) } c.write("abc") IO.select [s] assert_equal("a", s.read_nonblock(1)) assert_equal("bc", s.read_nonblock(100)) assert_raise(IO::WaitReadable) { s.read_nonblock(100) } ensure c.close if c s.close if s end def test_read_nonblock_no_exception c, s = tcp_pair assert_equal :wait_readable, c.read_nonblock(100, exception: false) assert_equal :wait_readable, s.read_nonblock(100, exception: false) c.write("abc") IO.select [s] assert_equal("a", s.read_nonblock(1, exception: false)) assert_equal("bc", s.read_nonblock(100, exception: false)) assert_equal :wait_readable, s.read_nonblock(100, exception: false) ensure c.close if c s.close if s end =begin def test_write_nonblock c, s = tcp_pair str = "a" * 10000 _, ws, _ = IO.select(nil, [c], nil) assert_equal([c], ws) ret = c.write_nonblock(str) assert_operator(ret, :>, 0) loop { assert_raise(IO::WaitWritable) { loop { ret = c.write_nonblock(str) assert_operator(ret, :>, 0) } } _, ws, _ = IO.select(nil, [c], nil, 0) break if !ws } ensure c.close if c s.close if s end =end def test_sendmsg_nonblock_error udp_pair {|s1, s2| begin loop { s1.sendmsg_nonblock("a" * 100000) } rescue NotImplementedError, Errno::ENOSYS omit "sendmsg not implemented on this platform: #{$!}" rescue Errno::EMSGSIZE # UDP has 64K limit (if no Jumbograms). No problem. rescue Errno::EWOULDBLOCK assert_kind_of(IO::WaitWritable, $!) end } end def test_recvfrom_nonblock_no_exception udp_pair do |s1, s2| assert_equal :wait_readable, s1.recvfrom_nonblock(100, exception: false) s2.send("aaa", 0) assert_predicate s1, :wait_readable mesg, inet_addr = s1.recvfrom_nonblock(100, exception: false) assert_equal(4, inet_addr.length) assert_equal("aaa", mesg) end end if defined?(UNIXSocket) && defined?(Socket::SOCK_SEQPACKET) def test_sendmsg_nonblock_seqpacket buf = '*' * 4096 UNIXSocket.pair(:SEQPACKET) do |s1, s2| assert_raise(IO::WaitWritable) do loop { s1.sendmsg_nonblock(buf) } end end rescue NotImplementedError, Errno::ENOSYS, Errno::EPROTONOSUPPORT omit "UNIXSocket.pair(:SEQPACKET) not implemented on this platform: #{$!}" end def test_sendmsg_nonblock_no_exception buf = '*' * 4096 UNIXSocket.pair(:SEQPACKET) do |s1, s2| n = 0 Timeout.timeout(60) do case rv = s1.sendmsg_nonblock(buf, exception: false) when Integer n += rv when :wait_writable break else flunk "unexpected return value: #{rv.inspect}" end while true assert_equal :wait_writable, rv assert_operator n, :>, 0 end end rescue NotImplementedError, Errno::ENOSYS, Errno::EPROTONOSUPPORT omit "UNIXSocket.pair(:SEQPACKET) not implemented on this platform: #{$!}" end end def test_recvmsg_nonblock_error udp_pair {|s1, s2| begin s1.recvmsg_nonblock(4096) rescue NotImplementedError omit "recvmsg not implemented on this platform." rescue Errno::EWOULDBLOCK assert_kind_of(IO::WaitReadable, $!) end assert_equal :wait_readable, s1.recvmsg_nonblock(11, exception: false) } end def test_recv_nonblock_error tcp_pair {|c, s| begin c.recv_nonblock(4096) rescue Errno::EWOULDBLOCK assert_kind_of(IO::WaitReadable, $!) end } end def test_recv_nonblock_no_exception tcp_pair {|c, s| assert_equal :wait_readable, c.recv_nonblock(11, exception: false) s.write('HI') assert_predicate c, :wait_readable assert_equal 'HI', c.recv_nonblock(11, exception: false) assert_equal :wait_readable, c.recv_nonblock(11, exception: false) } end def test_connect_nonblock_error serv = TCPServer.new("127.0.0.1", 0) _, port, _, _ = serv.addr c = Socket.new(:INET, :STREAM) begin c.connect_nonblock(Socket.sockaddr_in(port, "127.0.0.1")) rescue Errno::EINPROGRESS assert_kind_of(IO::WaitWritable, $!) end ensure serv.close if serv && !serv.closed? c.close if c && !c.closed? end def test_accept_nonblock_error serv = Socket.new(:INET, :STREAM) serv.bind(Socket.sockaddr_in(0, "127.0.0.1")) serv.listen(5) begin s, _ = serv.accept_nonblock rescue Errno::EWOULDBLOCK assert_kind_of(IO::WaitReadable, $!) end ensure serv.close if serv && !serv.closed? s.close if s && !s.closed? end end if defined?(Socket)