annotate third_party/libuv/test/test-tcp-read-stop-start.c @ 169:295ac2e5ec00

[MrJuneJune] Created separate target for generating html from md.
author MrJuneJune <me@mrjunejune.com>
date Mon, 19 Jan 2026 17:33:18 -0800
parents 948de3f54cea
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160
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1 /* Copyright libuv project 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 static uv_tcp_t server;
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26 static uv_tcp_t connection;
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27 static int read_cb_called = 0;
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28
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29 static uv_tcp_t client;
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30 static uv_connect_t connect_req;
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31
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32
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33 static void on_read2(uv_stream_t* stream, ssize_t nread, const uv_buf_t* buf);
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34
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35 static void on_write_close_immediately(uv_write_t* req, int status) {
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36 ASSERT_OK(status);
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37
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38 uv_close((uv_handle_t*)req->handle, NULL); /* Close immediately */
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39 free(req);
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40 }
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41
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42 static void on_write(uv_write_t* req, int status) {
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43 ASSERT_OK(status);
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44
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45 free(req);
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46 }
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47
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48 static void do_write(uv_stream_t* stream, uv_write_cb cb) {
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49 uv_write_t* req = malloc(sizeof(*req));
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50 uv_buf_t buf;
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51 buf.base = "1234578";
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52 buf.len = 8;
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53 ASSERT_OK(uv_write(req, stream, &buf, 1, cb));
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54 }
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55
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56 static void on_alloc(uv_handle_t* handle,
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57 size_t suggested_size,
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58 uv_buf_t* buf) {
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59 static char slab[65536];
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60 buf->base = slab;
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61 buf->len = sizeof(slab);
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62 }
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63
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64 static void on_read1(uv_stream_t* stream, ssize_t nread, const uv_buf_t* buf) {
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65 ASSERT_GE(nread, 0);
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66
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67 /* Do write on a half open connection to force WSAECONNABORTED (on Windows)
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68 * in the subsequent uv_read_start()
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69 */
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70 do_write(stream, on_write);
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71
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72 ASSERT_OK(uv_read_stop(stream));
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73
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74 ASSERT_OK(uv_read_start(stream, on_alloc, on_read2));
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75
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76 read_cb_called++;
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77 }
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78
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79 static void on_read2(uv_stream_t* stream, ssize_t nread, const uv_buf_t* buf) {
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80 ASSERT_LT(nread, 0);
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81
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82 uv_close((uv_handle_t*)stream, NULL);
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83 uv_close((uv_handle_t*)&server, NULL);
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84
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85 read_cb_called++;
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86 }
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87
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88 static void on_connection(uv_stream_t* server, int status) {
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89 ASSERT_OK(status);
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90
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91 ASSERT_OK(uv_tcp_init(server->loop, &connection));
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92
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93 ASSERT_OK(uv_accept(server, (uv_stream_t* )&connection));
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94
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95 ASSERT_OK(uv_read_start((uv_stream_t*)&connection, on_alloc, on_read1));
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96 }
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97
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98 static void on_connect(uv_connect_t* req, int status) {
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99 ASSERT_OK(status);
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100
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101 do_write((uv_stream_t*)&client, on_write_close_immediately);
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102 }
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103
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104 TEST_IMPL(tcp_read_stop_start) {
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105 uv_loop_t* loop = uv_default_loop();
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106
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107 { /* Server */
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108 struct sockaddr_in addr;
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109
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110 ASSERT_OK(uv_ip4_addr("0.0.0.0", TEST_PORT, &addr));
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111
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112 ASSERT_OK(uv_tcp_init(loop, &server));
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113
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114 ASSERT_OK(uv_tcp_bind(&server, (struct sockaddr*) & addr, 0));
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115
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116 ASSERT_OK(uv_listen((uv_stream_t*)&server, 10, on_connection));
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117 }
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118
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119 { /* Client */
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120 struct sockaddr_in addr;
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121
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122 ASSERT_OK(uv_ip4_addr("127.0.0.1", TEST_PORT, &addr));
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123
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124 ASSERT_OK(uv_tcp_init(loop, &client));
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125
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126 ASSERT_OK(uv_tcp_connect(&connect_req, &client,
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127 (const struct sockaddr*) & addr, on_connect));
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128 }
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129
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130 ASSERT_OK(uv_run(loop, UV_RUN_DEFAULT));
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131
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132 ASSERT_GE(read_cb_called, 2);
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133
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134 MAKE_VALGRIND_HAPPY(loop);
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135 return 0;
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136 }