1 /* Copyright Joyent, Inc. and other Node contributors. All rights reserved. 2 * 3 * Permission is hereby granted, free of charge, to any person obtaining a copy 4 * of this software and associated documentation files (the "Software"), to 5 * deal in the Software without restriction, including without limitation the 6 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or 7 * sell copies of the Software, and to permit persons to whom the Software is 8 * furnished to do so, subject to the following conditions: 9 * 10 * The above copyright notice and this permission notice shall be included in 11 * all copies or substantial portions of the Software. 12 * 13 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 14 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 15 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 16 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 17 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 18 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS 19 * IN THE SOFTWARE. 20 */ 21 22 #include "uv.h" 23 #include "task.h" 24 25 #include <stdio.h> 26 #include <stdlib.h> 27 #include <string.h> 28 29 #define CHECK_HANDLE(handle) \ 30 ASSERT((uv_udp_t*)(handle) == &client) 31 32 static uv_udp_t client; 33 static uv_timer_t timer; 34 35 static int send_cb_called; 36 static int recv_cb_called; 37 static int close_cb_called; 38 static int alloc_cb_called; 39 static int timer_cb_called; 40 41 42 static void alloc_cb(uv_handle_t* handle, 43 size_t suggested_size, 44 uv_buf_t* buf) { 45 static char slab[65536]; 46 CHECK_HANDLE(handle); 47 ASSERT(suggested_size <= sizeof(slab)); 48 buf->base = slab; 49 buf->len = sizeof(slab); 50 alloc_cb_called++; 51 } 52 53 54 static void close_cb(uv_handle_t* handle) { 55 ASSERT(1 == uv_is_closing(handle)); 56 close_cb_called++; 57 } 58 59 60 static void send_cb(uv_udp_send_t* req, int status) { 61 ASSERT(req != NULL); 62 ASSERT(status == 0); 63 CHECK_HANDLE(req->handle); 64 send_cb_called++; 65 } 66 67 68 static void recv_cb(uv_udp_t* handle, 69 ssize_t nread, 70 const uv_buf_t* rcvbuf, 71 const struct sockaddr* addr, 72 unsigned flags) { 73 CHECK_HANDLE(handle); 74 recv_cb_called++; 75 76 if (nread < 0) { 77 ASSERT(0 && "unexpected error"); 78 } else if (nread == 0) { 79 /* Returning unused buffer */ 80 ASSERT(addr == NULL); 81 } else { 82 ASSERT(addr != NULL); 83 } 84 } 85 86 87 static void timer_cb(uv_timer_t* h) { 88 ASSERT(h == &timer); 89 timer_cb_called++; 90 uv_close((uv_handle_t*) &client, close_cb); 91 uv_close((uv_handle_t*) h, close_cb); 92 } 93 94 95 TEST_IMPL(udp_send_unreachable) { 96 struct sockaddr_in addr; 97 struct sockaddr_in addr2; 98 uv_udp_send_t req1, req2; 99 uv_buf_t buf; 100 int r; 101 102 ASSERT(0 == uv_ip4_addr("127.0.0.1", TEST_PORT, &addr)); 103 ASSERT(0 == uv_ip4_addr("127.0.0.1", TEST_PORT_2, &addr2)); 104 105 r = uv_timer_init( uv_default_loop(), &timer ); 106 ASSERT(r == 0); 107 108 r = uv_timer_start( &timer, timer_cb, 1000, 0 ); 109 ASSERT(r == 0); 110 111 r = uv_udp_init(uv_default_loop(), &client); 112 ASSERT(r == 0); 113 114 r = uv_udp_bind(&client, (const struct sockaddr*) &addr2, 0); 115 ASSERT(r == 0); 116 117 r = uv_udp_recv_start(&client, alloc_cb, recv_cb); 118 ASSERT(r == 0); 119 120 /* client sends "PING", then "PANG" */ 121 buf = uv_buf_init("PING", 4); 122 123 r = uv_udp_send(&req1, 124 &client, 125 &buf, 126 1, 127 (const struct sockaddr*) &addr, 128 send_cb); 129 ASSERT(r == 0); 130 131 buf = uv_buf_init("PANG", 4); 132 133 r = uv_udp_send(&req2, 134 &client, 135 &buf, 136 1, 137 (const struct sockaddr*) &addr, 138 send_cb); 139 ASSERT(r == 0); 140 141 uv_run(uv_default_loop(), UV_RUN_DEFAULT); 142 143 ASSERT(send_cb_called == 2); 144 ASSERT(recv_cb_called == alloc_cb_called); 145 ASSERT(timer_cb_called == 1); 146 ASSERT(close_cb_called == 2); 147 148 MAKE_VALGRIND_HAPPY(); 149 return 0; 150 } 151