/* 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 <string.h>

#include <errno.h>

/* NOTE: Number should be big enough to trigger this problem */

#if defined(__CYGWIN__) || defined(__MSYS__) || defined(__PASE__)

/* Cygwin crashes or hangs in socket() with too many AF_INET sockets.  */

/* IBMi PASE timeout with too many AF_INET sockets.  */

static uv_udp_t sockets[1250];

#else

static uv_udp_t sockets[2500];

#endif

static uv_udp_send_t reqs[ARRAY_SIZE(sockets)];

static char slab[1];

static unsigned int recv_cb_called;

static unsigned int send_cb_called;

static unsigned int close_cb_called;

static void alloc_cb(uv_handle_t* handle, size_t size, uv_buf_t* buf) {

  buf->base = slab;

  buf->len = sizeof(slab);

}

static void recv_cb(uv_udp_t* handle,

                    ssize_t nread,

                    const uv_buf_t* buf,

                    const struct sockaddr* addr,

                    unsigned flags) {

  recv_cb_called++;

}

static void send_cb(uv_udp_send_t* req, int status) {

  send_cb_called++;

}

static void close_cb(uv_handle_t* handle) {

  close_cb_called++;

}

TEST_IMPL(watcher_cross_stop) {

#if defined(__MVS__)

  RETURN_SKIP("zOS does not allow address or port reuse when using UDP sockets");

#endif

  uv_loop_t* loop = uv_default_loop();

  unsigned int i;

  struct sockaddr_in addr;

  uv_buf_t buf;

  char big_string[1024];

  TEST_FILE_LIMIT(ARRAY_SIZE(sockets) + 32);

  ASSERT(0 == uv_ip4_addr("127.0.0.1", TEST_PORT, &addr));

  memset(big_string, 'A', sizeof(big_string));

  buf = uv_buf_init(big_string, sizeof(big_string));

  for (i = 0; i < ARRAY_SIZE(sockets); i++) {

    ASSERT(0 == uv_udp_init(loop, &sockets[i]));

    ASSERT(0 == uv_udp_bind(&sockets[i],

                            (const struct sockaddr*) &addr,

                            UV_UDP_REUSEADDR));

    ASSERT(0 == uv_udp_recv_start(&sockets[i], alloc_cb, recv_cb));

    ASSERT(0 == uv_udp_send(&reqs[i],

                            &sockets[i],

                            &buf,

                            1,

                            (const struct sockaddr*) &addr,

                            send_cb));

  }

  while (recv_cb_called == 0)

    uv_run(loop, UV_RUN_ONCE);

  for (i = 0; i < ARRAY_SIZE(sockets); i++)

    uv_close((uv_handle_t*) &sockets[i], close_cb);

  ASSERT(recv_cb_called > 0);

  uv_run(loop, UV_RUN_DEFAULT);

  ASSERT(ARRAY_SIZE(sockets) == send_cb_called);

  ASSERT(ARRAY_SIZE(sockets) == close_cb_called);

  MAKE_VALGRIND_HAPPY();

  return 0;

}