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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 <stdio.h>
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26 #include <stdlib.h>
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27 #include <string.h>
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28
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29 #define CHECK_HANDLE(handle) \
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30 ASSERT_NE((uv_udp_t*)(handle) == &server || (uv_udp_t*)(handle) == &client, 0)
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31
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32 static uv_udp_t server;
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33 static uv_udp_t client;
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34
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35 static int sv_recv_cb_called;
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36
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37 static int close_cb_called;
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38
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39
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40 static void alloc_cb(uv_handle_t* handle,
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41 size_t suggested_size,
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42 uv_buf_t* buf) {
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43 static char slab[65536];
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44 CHECK_HANDLE(handle);
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45 ASSERT_LE(suggested_size, sizeof(slab));
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46 buf->base = slab;
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47 buf->len = sizeof(slab);
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48 }
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49
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50
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51 static void close_cb(uv_handle_t* handle) {
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52 CHECK_HANDLE(handle);
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53 ASSERT(uv_is_closing(handle));
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54 close_cb_called++;
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55 }
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56
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57
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58 static void sv_recv_cb(uv_udp_t* handle,
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59 ssize_t nread,
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60 const uv_buf_t* rcvbuf,
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61 const struct sockaddr* addr,
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62 unsigned flags) {
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63 if (nread == 0) {
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64 ASSERT_NULL(addr);
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65 return;
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66 }
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67
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68 ASSERT_EQ(4, nread);
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69 ASSERT_NOT_NULL(addr);
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70
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71 if (!memcmp("EXIT", rcvbuf->base, nread)) {
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72 uv_close((uv_handle_t*) handle, close_cb);
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73 uv_close((uv_handle_t*) &client, close_cb);
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74 } else {
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75 ASSERT_MEM_EQ(rcvbuf->base, "HELO", 4);
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76 }
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77
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78 sv_recv_cb_called++;
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79
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80 if (sv_recv_cb_called == 2)
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81 uv_udp_recv_stop(handle);
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82 }
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83
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84
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85 TEST_IMPL(udp_try_send) {
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86 struct sockaddr_in addr;
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87 static char buffer[64 * 1024];
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88 uv_buf_t buf;
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89 int r;
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90
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91 ASSERT_OK(uv_ip4_addr("0.0.0.0", TEST_PORT, &addr));
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92
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93 r = uv_udp_init(uv_default_loop(), &server);
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94 ASSERT_OK(r);
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95
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96 r = uv_udp_bind(&server, (const struct sockaddr*) &addr, 0);
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97 ASSERT_OK(r);
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98
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99 r = uv_udp_recv_start(&server, alloc_cb, sv_recv_cb);
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100 ASSERT_OK(r);
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101
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102 ASSERT_OK(uv_ip4_addr("127.0.0.1", TEST_PORT, &addr));
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103
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104 r = uv_udp_init(uv_default_loop(), &client);
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105 ASSERT_OK(r);
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106
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107 buf = uv_buf_init(buffer, sizeof(buffer));
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108
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109 r = uv_udp_try_send(&client, &buf, 0, (const struct sockaddr*) &addr);
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110 ASSERT_EQ(r, UV_EINVAL);
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111
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112 r = uv_udp_try_send(&client, &buf, 1, (const struct sockaddr*) &addr);
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113 ASSERT_EQ(r, UV_EMSGSIZE);
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114
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115 uv_buf_t* bufs[] = {&buf, &buf};
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116 unsigned int nbufs[] = {1, 1};
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117 struct sockaddr* addrs[] = {
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118 (struct sockaddr*) &addr,
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119 (struct sockaddr*) &addr,
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120 };
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121
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122 ASSERT_EQ(0, sv_recv_cb_called);
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123
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124 buf = uv_buf_init("HELO", 4);
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125 r = uv_udp_try_send2(&client, 2, bufs, nbufs, addrs, /*flags*/0);
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126 ASSERT_EQ(r, 2);
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127
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128 uv_run(uv_default_loop(), UV_RUN_DEFAULT);
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129
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130 ASSERT_EQ(2, sv_recv_cb_called);
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131
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132 r = uv_udp_recv_start(&server, alloc_cb, sv_recv_cb);
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133 ASSERT_OK(r);
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134
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135 buf = uv_buf_init("EXIT", 4);
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136 r = uv_udp_try_send(&client, &buf, 1, (const struct sockaddr*) &addr);
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137 ASSERT_EQ(4, r);
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138
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139 uv_run(uv_default_loop(), UV_RUN_DEFAULT);
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140
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141 ASSERT_EQ(2, close_cb_called);
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142 ASSERT_EQ(3, sv_recv_cb_called);
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143
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144 ASSERT_OK(client.send_queue_size);
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145 ASSERT_OK(server.send_queue_size);
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146
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147 MAKE_VALGRIND_HAPPY(uv_default_loop());
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148 return 0;
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149 }
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