test-delayed-accept.c

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/* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
 *
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 * 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
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 */
 
#include "uv.h"
#include "task.h"
#include <stdio.h>
#include <stdlib.h>
 
static int connection_cb_called = 0;
static int do_accept_called = 0;
static int close_cb_called = 0;
static int connect_cb_called = 0;
 
 
static void alloc_cb(uv_handle_t* handle, size_t size, uv_buf_t* buf) {
  buf->base = malloc(size);
  buf->len = size;
}
 
 
static void close_cb(uv_handle_t* handle) {
  ASSERT(handle != NULL);
 
  free(handle);
 
  close_cb_called++;
}
 
 
static void do_accept(uv_timer_t* timer_handle) {
  uv_tcp_t* server;
  uv_tcp_t* accepted_handle = (uv_tcp_t*)malloc(sizeof *accepted_handle);
  int r;
 
  ASSERT(timer_handle != NULL);
  ASSERT(accepted_handle != NULL);
 
  r = uv_tcp_init(uv_default_loop(), accepted_handle);
  ASSERT(r == 0);
 
  server = (uv_tcp_t*)timer_handle->data;
  r = uv_accept((uv_stream_t*)server, (uv_stream_t*)accepted_handle);
  ASSERT(r == 0);
 
  do_accept_called++;
 
  /* Immediately close the accepted handle. */
  uv_close((uv_handle_t*)accepted_handle, close_cb);
 
  /* After accepting the two clients close the server handle */
  if (do_accept_called == 2) {
    uv_close((uv_handle_t*)server, close_cb);
  }
 
  /* Dispose the timer. */
  uv_close((uv_handle_t*)timer_handle, close_cb);
}
 
 
static void connection_cb(uv_stream_t* tcp, int status) {
  int r;
  uv_timer_t* timer_handle;
 
  ASSERT(status == 0);
 
  timer_handle = (uv_timer_t*)malloc(sizeof *timer_handle);
  ASSERT(timer_handle != NULL);
 
  /* Accept the client after 1 second */
  r = uv_timer_init(uv_default_loop(), timer_handle);
  ASSERT(r == 0);
 
  timer_handle->data = tcp;
 
  r = uv_timer_start(timer_handle, do_accept, 1000, 0);
  ASSERT(r == 0);
 
  connection_cb_called++;
}
 
 
static void start_server(void) {
  struct sockaddr_in addr;
  uv_tcp_t* server = (uv_tcp_t*)malloc(sizeof *server);
  int r;
 
  ASSERT(0 == uv_ip4_addr("0.0.0.0", TEST_PORT, &addr));
  ASSERT(server != NULL);
 
  r = uv_tcp_init(uv_default_loop(), server);
  ASSERT(r == 0);
  r = uv_tcp_bind(server, (const struct sockaddr*) &addr, 0);
  ASSERT(r == 0);
 
  r = uv_listen((uv_stream_t*)server, 128, connection_cb);
  ASSERT(r == 0);
}
 
 
static void read_cb(uv_stream_t* tcp, ssize_t nread, const uv_buf_t* buf) {
  /* The server will not send anything, it should close gracefully. */
 
  if (buf->base) {
    free(buf->base);
  }
 
  if (nread >= 0) {
    ASSERT(nread == 0);
  } else {
    ASSERT(tcp != NULL);
    ASSERT(nread == UV_EOF);
    uv_close((uv_handle_t*)tcp, close_cb);
  }
}
 
 
static void connect_cb(uv_connect_t* req, int status) {
  int r;
 
  ASSERT(req != NULL);
  ASSERT(status == 0);
 
  /* Not that the server will send anything, but otherwise we'll never know
   * when the server closes the connection. */
  r = uv_read_start((uv_stream_t*)(req->handle), alloc_cb, read_cb);
  ASSERT(r == 0);
 
  connect_cb_called++;
 
  free(req);
}
 
 
static void client_connect(void) {
  struct sockaddr_in addr;
  uv_tcp_t* client = (uv_tcp_t*)malloc(sizeof *client);
  uv_connect_t* connect_req = malloc(sizeof *connect_req);
  int r;
 
  ASSERT(0 == uv_ip4_addr("127.0.0.1", TEST_PORT, &addr));
  ASSERT(client != NULL);
  ASSERT(connect_req != NULL);
 
  r = uv_tcp_init(uv_default_loop(), client);
  ASSERT(r == 0);
 
  r = uv_tcp_connect(connect_req,
                     client,
                     (const struct sockaddr*) &addr,
                     connect_cb);
  ASSERT(r == 0);
}
 
 
 
TEST_IMPL(delayed_accept) {
  start_server();
 
  client_connect();
  client_connect();
 
  uv_run(uv_default_loop(), UV_RUN_DEFAULT);
 
  ASSERT(connection_cb_called == 2);
  ASSERT(do_accept_called == 2);
  ASSERT(connect_cb_called == 2);
  ASSERT(close_cb_called == 7);
 
  MAKE_VALGRIND_HAPPY();
  return 0;
}