libuv-svace-build

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/* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
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 *
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 * Permission is hereby granted, free of charge, to any person obtaining a copy
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 * of this software and associated documentation files (the "Software"), to
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 * deal in the Software without restriction, including without limitation the
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 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
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 * sell copies of the Software, and to permit persons to whom the Software is
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 * furnished to do so, subject to the following conditions:
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 *
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 * The above copyright notice and this permission notice shall be included in
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 * all copies or substantial portions of the Software.
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 *
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 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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 * IN THE SOFTWARE.
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 */
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#include "uv.h"
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#include "task.h"
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#include <stdio.h>
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#include <stdlib.h>
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typedef struct {
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  uv_tcp_t handle;
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  uv_shutdown_t shutdown_req;
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} conn_rec;
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static uv_tcp_t tcp_server;
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static void connection_cb(uv_stream_t* stream, int status);
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static void alloc_cb(uv_handle_t* handle, size_t suggested_size, uv_buf_t* buf);
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static void read_cb(uv_stream_t* stream, ssize_t nread, const uv_buf_t* buf);
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static void shutdown_cb(uv_shutdown_t* req, int status);
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static void close_cb(uv_handle_t* handle);
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static void connection_cb(uv_stream_t* stream, int status) {
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  conn_rec* conn;
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  int r;
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  ASSERT_OK(status);
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  ASSERT_PTR_EQ(stream, (uv_stream_t*)&tcp_server);
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  conn = malloc(sizeof *conn);
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  ASSERT_NOT_NULL(conn);
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  r = uv_tcp_init(stream->loop, &conn->handle);
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  ASSERT_OK(r);
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  r = uv_accept(stream, (uv_stream_t*)&conn->handle);
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  ASSERT_OK(r);
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  r = uv_read_start((uv_stream_t*)&conn->handle, alloc_cb, read_cb);
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  ASSERT_OK(r);
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}
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static void alloc_cb(uv_handle_t* handle,
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                     size_t suggested_size,
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                     uv_buf_t* buf) {
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  static char slab[65536];
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  buf->base = slab;
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  buf->len = sizeof(slab);
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}
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static void read_cb(uv_stream_t* stream, ssize_t nread, const uv_buf_t* buf) {
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  conn_rec* conn;
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  int r;
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  if (nread >= 0)
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    return;
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  ASSERT_EQ(nread, UV_EOF);
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  conn = container_of(stream, conn_rec, handle);
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  r = uv_shutdown(&conn->shutdown_req, stream, shutdown_cb);
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  ASSERT_OK(r);
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}
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static void shutdown_cb(uv_shutdown_t* req, int status) {
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  conn_rec* conn = container_of(req, conn_rec, shutdown_req);
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  uv_close((uv_handle_t*)&conn->handle, close_cb);
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}
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static void close_cb(uv_handle_t* handle) {
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  conn_rec* conn = container_of(handle, conn_rec, handle);
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  free(conn);
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}
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HELPER_IMPL(tcp4_blackhole_server) {
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  struct sockaddr_in addr;
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  uv_loop_t* loop;
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  int r;
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  loop = uv_default_loop();
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  ASSERT_OK(uv_ip4_addr("127.0.0.1", TEST_PORT, &addr));
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  r = uv_tcp_init(loop, &tcp_server);
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  ASSERT_OK(r);
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  r = uv_tcp_bind(&tcp_server, (const struct sockaddr*) &addr, 0);
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  ASSERT_OK(r);
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  r = uv_listen((uv_stream_t*)&tcp_server, 128, connection_cb);
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  ASSERT_OK(r);
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  notify_parent_process();
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  r = uv_run(loop, UV_RUN_DEFAULT);
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  ASSERT(0 && "Blackhole server dropped out of event loop.");
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  return 0;
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}
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