/* 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 #include #include #define container_of(ptr, type, member) \ ((type *) ((char *) (ptr) - offsetof(type, member))) typedef struct { uv_tcp_t handle; uv_shutdown_t shutdown_req; } conn_rec; static uv_tcp_t tcp_server; static void connection_cb(uv_stream_t* stream, int status); static uv_buf_t alloc_cb(uv_handle_t* handle, size_t suggested_size); static void read_cb(uv_stream_t* stream, ssize_t nread, uv_buf_t buf); static void shutdown_cb(uv_shutdown_t* req, int status); static void close_cb(uv_handle_t* handle); static void connection_cb(uv_stream_t* stream, int status) { conn_rec* conn; int r; ASSERT(status == 0); ASSERT(stream == (uv_stream_t*)&tcp_server); conn = malloc(sizeof *conn); ASSERT(conn != NULL); r = uv_tcp_init(stream->loop, &conn->handle); ASSERT(r == 0); r = uv_accept(stream, (uv_stream_t*)&conn->handle); ASSERT(r == 0); r = uv_read_start((uv_stream_t*)&conn->handle, alloc_cb, read_cb); ASSERT(r == 0); } static uv_buf_t alloc_cb(uv_handle_t* handle, size_t suggested_size) { static char buf[65536]; return uv_buf_init(buf, sizeof buf); } static void read_cb(uv_stream_t* stream, ssize_t nread, uv_buf_t buf) { conn_rec* conn; int r; if (nread >= 0) return; ASSERT(uv_last_error(stream->loop).code == UV_EOF); conn = container_of(stream, conn_rec, handle); r = uv_shutdown(&conn->shutdown_req, stream, shutdown_cb); ASSERT(r == 0); } static void shutdown_cb(uv_shutdown_t* req, int status) { conn_rec* conn = container_of(req, conn_rec, shutdown_req); uv_close((uv_handle_t*)&conn->handle, close_cb); } static void close_cb(uv_handle_t* handle) { conn_rec* conn = container_of(handle, conn_rec, handle); free(conn); } HELPER_IMPL(tcp4_blackhole_server) { struct sockaddr_in addr; uv_loop_t* loop; int r; loop = uv_default_loop(); addr = uv_ip4_addr("127.0.0.1", TEST_PORT); r = uv_tcp_init(loop, &tcp_server); ASSERT(r == 0); r = uv_tcp_bind(&tcp_server, addr); ASSERT(r == 0); r = uv_listen((uv_stream_t*)&tcp_server, 128, connection_cb); ASSERT(r == 0); r = uv_run(loop); ASSERT(0 && "Blackhole server dropped out of event loop."); return 0; }