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1 /* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
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2 *
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3 * Permission is hereby granted, free of charge, to any person obtaining a copy
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4 * of this software and associated documentation files (the "Software"), to
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5 * deal in the Software without restriction, including without limitation the
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6 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
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7 * sell copies of the Software, and to permit persons to whom the Software is
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8 * furnished to do so, subject to the following conditions:
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9 *
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10 * The above copyright notice and this permission notice shall be included in
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11 * all copies or substantial portions of the Software.
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12 *
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13 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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14 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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15 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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16 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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17 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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18 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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19 * IN THE SOFTWARE.
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20 */
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21
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22 #include "uv.h"
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23 #include "task.h"
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24
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25 #include <string.h>
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26 #include <errno.h>
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27
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28 /* NOTE: Number should be big enough to trigger this problem */
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29 #if defined(__CYGWIN__) || defined(__MSYS__) || defined(__PASE__)
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30 /* Cygwin crashes or hangs in socket() with too many AF_INET sockets. */
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31 /* IBMi PASE timeout with too many AF_INET sockets. */
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32 static uv_udp_t sockets[1250];
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33 #else
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34 static uv_udp_t sockets[2500];
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35 #endif
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36 static uv_udp_send_t reqs[ARRAY_SIZE(sockets)];
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37 static char slab[1];
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38 static unsigned int recv_cb_called;
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39 static unsigned int send_cb_called;
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40 static unsigned int close_cb_called;
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41
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42 static void alloc_cb(uv_handle_t* handle, size_t size, uv_buf_t* buf) {
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43 buf->base = slab;
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44 buf->len = sizeof(slab);
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45 }
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46
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47
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48 static void recv_cb(uv_udp_t* handle,
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49 ssize_t nread,
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50 const uv_buf_t* buf,
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51 const struct sockaddr* addr,
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52 unsigned flags) {
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53 recv_cb_called++;
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54 }
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55
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56
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57 static void send_cb(uv_udp_send_t* req, int status) {
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58 send_cb_called++;
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59 }
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60
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61
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62 static void close_cb(uv_handle_t* handle) {
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63 close_cb_called++;
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64 }
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65
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66
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67 TEST_IMPL(watcher_cross_stop) {
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68 #if defined(__MVS__)
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69 RETURN_SKIP("zOS does not allow address or port reuse when using UDP sockets");
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70 #endif
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71 uv_loop_t* loop = uv_default_loop();
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72 unsigned int i;
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73 struct sockaddr_in addr;
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74 uv_buf_t buf;
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75 char big_string[1024];
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76
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77 TEST_FILE_LIMIT(ARRAY_SIZE(sockets) + 32);
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78
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79 ASSERT_OK(uv_ip4_addr("127.0.0.1", TEST_PORT, &addr));
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80 memset(big_string, 'A', sizeof(big_string));
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81 buf = uv_buf_init(big_string, sizeof(big_string));
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82
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83 for (i = 0; i < ARRAY_SIZE(sockets); i++) {
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84 ASSERT_OK(uv_udp_init(loop, &sockets[i]));
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85 ASSERT_OK(uv_udp_bind(&sockets[i],
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86 (const struct sockaddr*) &addr,
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87 UV_UDP_REUSEADDR));
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88 ASSERT_OK(uv_udp_recv_start(&sockets[i], alloc_cb, recv_cb));
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89 ASSERT_OK(uv_udp_send(&reqs[i],
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90 &sockets[i],
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91 &buf,
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92 1,
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93 (const struct sockaddr*) &addr,
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94 send_cb));
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95 }
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96
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97 while (recv_cb_called == 0)
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98 uv_run(loop, UV_RUN_ONCE);
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99
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100 for (i = 0; i < ARRAY_SIZE(sockets); i++)
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101 uv_close((uv_handle_t*) &sockets[i], close_cb);
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102
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103 ASSERT_GT(recv_cb_called, 0);
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104
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105 uv_run(loop, UV_RUN_DEFAULT);
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106
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107 ASSERT_EQ(ARRAY_SIZE(sockets), send_cb_called);
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108 ASSERT_EQ(ARRAY_SIZE(sockets), close_cb_called);
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109
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110 MAKE_VALGRIND_HAPPY(loop);
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111 return 0;
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112 }
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