| /* Copyright Joyent, Inc. and other Node contributors. All rights reserved. |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a copy |
| * of this software and associated documentation files (the "Software"), to |
| * deal in the Software without restriction, including without limitation the |
| * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or |
| * sell copies of the Software, and to permit persons to whom the Software is |
| * furnished to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice shall be included in |
| * all copies or substantial portions of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
| * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS |
| * IN THE SOFTWARE. |
| */ |
| |
| #include "uv.h" |
| #include "task.h" |
| |
| #include <stdio.h> |
| #include <string.h> |
| |
| static struct sockaddr_in addr; |
| static uv_tcp_t tcp_server; |
| static uv_tcp_t tcp_outgoing[2]; |
| static uv_tcp_t tcp_incoming[ARRAY_SIZE(tcp_outgoing)]; |
| static uv_connect_t connect_reqs[ARRAY_SIZE(tcp_outgoing)]; |
| static uv_tcp_t tcp_check; |
| static uv_connect_t tcp_check_req; |
| static uv_write_t write_reqs[ARRAY_SIZE(tcp_outgoing)]; |
| static unsigned int got_connections; |
| static unsigned int close_cb_called; |
| static unsigned int write_cb_called; |
| static unsigned int read_cb_called; |
| |
| static void close_cb(uv_handle_t* handle) { |
| close_cb_called++; |
| } |
| |
| static void write_cb(uv_write_t* req, int status) { |
| ASSERT(status == 0); |
| write_cb_called++; |
| } |
| |
| static void connect_cb(uv_connect_t* req, int status) { |
| unsigned int i; |
| uv_buf_t buf; |
| uv_stream_t* outgoing; |
| |
| if (req == &tcp_check_req) { |
| ASSERT(status != 0); |
| |
| /* Close check and incoming[0], time to finish test */ |
| uv_close((uv_handle_t*) &tcp_incoming[0], close_cb); |
| uv_close((uv_handle_t*) &tcp_check, close_cb); |
| return; |
| } |
| |
| ASSERT(status == 0); |
| ASSERT(connect_reqs <= req); |
| ASSERT(req <= connect_reqs + ARRAY_SIZE(connect_reqs)); |
| i = req - connect_reqs; |
| |
| buf = uv_buf_init("x", 1); |
| outgoing = (uv_stream_t*) &tcp_outgoing[i]; |
| ASSERT(0 == uv_write(&write_reqs[i], outgoing, &buf, 1, write_cb)); |
| } |
| |
| static uv_buf_t alloc_cb(uv_handle_t* handle, size_t suggested_size) { |
| static char buf[1]; |
| |
| return uv_buf_init(buf, sizeof(buf)); |
| } |
| |
| static void read_cb(uv_stream_t* stream, ssize_t nread, uv_buf_t b) { |
| uv_loop_t* loop; |
| unsigned int i; |
| |
| /* Only first stream should receive read events */ |
| ASSERT(stream == (uv_stream_t*) &tcp_incoming[0]); |
| ASSERT(0 == uv_read_stop(stream)); |
| ASSERT(1 == nread); |
| |
| loop = stream->loop; |
| read_cb_called++; |
| |
| /* Close all active incomings, except current one */ |
| for (i = 1; i < got_connections; i++) |
| uv_close((uv_handle_t*) &tcp_incoming[i], close_cb); |
| |
| /* Create new fd that should be one of the closed incomings */ |
| ASSERT(0 == uv_tcp_init(loop, &tcp_check)); |
| ASSERT(0 == uv_tcp_connect(&tcp_check_req, &tcp_check, addr, connect_cb)); |
| ASSERT(0 == uv_read_start((uv_stream_t*) &tcp_check, alloc_cb, read_cb)); |
| |
| /* Close server, so no one will connect to it */ |
| uv_close((uv_handle_t*) &tcp_server, close_cb); |
| } |
| |
| static void connection_cb(uv_stream_t* server, int status) { |
| unsigned int i; |
| uv_tcp_t* incoming; |
| |
| ASSERT(server == (uv_stream_t*) &tcp_server); |
| |
| /* Ignore tcp_check connection */ |
| if (got_connections == ARRAY_SIZE(tcp_incoming)) |
| return; |
| |
| /* Accept everyone */ |
| incoming = &tcp_incoming[got_connections++]; |
| ASSERT(0 == uv_tcp_init(server->loop, incoming)); |
| ASSERT(0 == uv_accept(server, (uv_stream_t*) incoming)); |
| |
| if (got_connections != ARRAY_SIZE(tcp_incoming)) |
| return; |
| |
| /* Once all clients are accepted - start reading */ |
| for (i = 0; i < ARRAY_SIZE(tcp_incoming); i++) { |
| incoming = &tcp_incoming[i]; |
| ASSERT(0 == uv_read_start((uv_stream_t*) incoming, alloc_cb, read_cb)); |
| } |
| } |
| |
| TEST_IMPL(tcp_close_accept) { |
| unsigned int i; |
| uv_loop_t* loop; |
| uv_tcp_t* client; |
| |
| /* |
| * A little explanation of what goes on below: |
| * |
| * We'll create server and connect to it using two clients, each writing one |
| * byte once connected. |
| * |
| * When all clients will be accepted by server - we'll start reading from them |
| * and, on first client's first byte, will close second client and server. |
| * After that, we'll immediately initiate new connection to server using |
| * tcp_check handle (thus, reusing fd from second client). |
| * |
| * In this situation uv__io_poll()'s event list should still contain read |
| * event for second client, and, if not cleaned up properly, `tcp_check` will |
| * receive stale event of second incoming and invoke `connect_cb` with zero |
| * status. |
| */ |
| |
| loop = uv_default_loop(); |
| addr = uv_ip4_addr("0.0.0.0", TEST_PORT); |
| |
| ASSERT(0 == uv_tcp_init(loop, &tcp_server)); |
| ASSERT(0 == uv_tcp_bind(&tcp_server, addr)); |
| ASSERT(0 == uv_listen((uv_stream_t*) &tcp_server, |
| ARRAY_SIZE(tcp_outgoing), |
| connection_cb)); |
| |
| for (i = 0; i < ARRAY_SIZE(tcp_outgoing); i++) { |
| client = tcp_outgoing + i; |
| |
| ASSERT(0 == uv_tcp_init(loop, client)); |
| ASSERT(0 == uv_tcp_connect(&connect_reqs[i], client, addr, connect_cb)); |
| } |
| |
| uv_run(loop, UV_RUN_DEFAULT); |
| |
| ASSERT(ARRAY_SIZE(tcp_outgoing) == got_connections); |
| ASSERT((ARRAY_SIZE(tcp_outgoing) + 2) == close_cb_called); |
| ASSERT(ARRAY_SIZE(tcp_outgoing) == write_cb_called); |
| ASSERT(1 == read_cb_called); |
| |
| MAKE_VALGRIND_HAPPY(); |
| return 0; |
| } |