xref: /libuv/test/test-delayed-accept.c (revision 011a1ac1)
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21 
22 #include "uv.h"
23 #include "task.h"
24 #include <stdio.h>
25 #include <stdlib.h>
26 
27 static int connection_cb_called = 0;
28 static int do_accept_called = 0;
29 static int close_cb_called = 0;
30 static int connect_cb_called = 0;
31 
32 
alloc_cb(uv_handle_t * handle,size_t size,uv_buf_t * buf)33 static void alloc_cb(uv_handle_t* handle, size_t size, uv_buf_t* buf) {
34   buf->base = malloc(size);
35   buf->len = size;
36 }
37 
38 
close_cb(uv_handle_t * handle)39 static void close_cb(uv_handle_t* handle) {
40   ASSERT_NOT_NULL(handle);
41 
42   free(handle);
43 
44   close_cb_called++;
45 }
46 
47 
do_accept(uv_timer_t * timer_handle)48 static void do_accept(uv_timer_t* timer_handle) {
49   uv_tcp_t* server;
50   uv_tcp_t* accepted_handle = (uv_tcp_t*)malloc(sizeof *accepted_handle);
51   int r;
52 
53   ASSERT_NOT_NULL(timer_handle);
54   ASSERT_NOT_NULL(accepted_handle);
55 
56   r = uv_tcp_init(uv_default_loop(), accepted_handle);
57   ASSERT_OK(r);
58 
59   server = (uv_tcp_t*)timer_handle->data;
60   r = uv_accept((uv_stream_t*)server, (uv_stream_t*)accepted_handle);
61   ASSERT_OK(r);
62 
63   do_accept_called++;
64 
65   /* Immediately close the accepted handle. */
66   uv_close((uv_handle_t*)accepted_handle, close_cb);
67 
68   /* After accepting the two clients close the server handle */
69   if (do_accept_called == 2) {
70     uv_close((uv_handle_t*)server, close_cb);
71   }
72 
73   /* Dispose the timer. */
74   uv_close((uv_handle_t*)timer_handle, close_cb);
75 }
76 
77 
connection_cb(uv_stream_t * tcp,int status)78 static void connection_cb(uv_stream_t* tcp, int status) {
79   int r;
80   uv_timer_t* timer_handle;
81 
82   ASSERT_OK(status);
83 
84   timer_handle = (uv_timer_t*)malloc(sizeof *timer_handle);
85   ASSERT_NOT_NULL(timer_handle);
86 
87   /* Accept the client after 1 second */
88   r = uv_timer_init(uv_default_loop(), timer_handle);
89   ASSERT_OK(r);
90 
91   timer_handle->data = tcp;
92 
93   r = uv_timer_start(timer_handle, do_accept, 1000, 0);
94   ASSERT_OK(r);
95 
96   connection_cb_called++;
97 }
98 
99 
start_server(void)100 static void start_server(void) {
101   struct sockaddr_in addr;
102   uv_tcp_t* server = (uv_tcp_t*)malloc(sizeof *server);
103   int r;
104 
105   ASSERT_OK(uv_ip4_addr("0.0.0.0", TEST_PORT, &addr));
106   ASSERT_NOT_NULL(server);
107 
108   r = uv_tcp_init(uv_default_loop(), server);
109   ASSERT_OK(r);
110   r = uv_tcp_bind(server, (const struct sockaddr*) &addr, 0);
111   ASSERT_OK(r);
112 
113   r = uv_listen((uv_stream_t*)server, 128, connection_cb);
114   ASSERT_OK(r);
115 }
116 
117 
read_cb(uv_stream_t * tcp,ssize_t nread,const uv_buf_t * buf)118 static void read_cb(uv_stream_t* tcp, ssize_t nread, const uv_buf_t* buf) {
119   /* The server will not send anything, it should close gracefully. */
120 
121   if (buf->base) {
122     free(buf->base);
123   }
124 
125   if (nread >= 0) {
126     ASSERT_OK(nread);
127   } else {
128     ASSERT_NOT_NULL(tcp);
129     ASSERT_EQ(nread, UV_EOF);
130     uv_close((uv_handle_t*)tcp, close_cb);
131   }
132 }
133 
134 
connect_cb(uv_connect_t * req,int status)135 static void connect_cb(uv_connect_t* req, int status) {
136   int r;
137 
138   ASSERT_NOT_NULL(req);
139   ASSERT_OK(status);
140 
141   /* Not that the server will send anything, but otherwise we'll never know
142    * when the server closes the connection. */
143   r = uv_read_start((uv_stream_t*)(req->handle), alloc_cb, read_cb);
144   ASSERT_OK(r);
145 
146   connect_cb_called++;
147 
148   free(req);
149 }
150 
151 
client_connect(void)152 static void client_connect(void) {
153   struct sockaddr_in addr;
154   uv_tcp_t* client = (uv_tcp_t*)malloc(sizeof *client);
155   uv_connect_t* connect_req = malloc(sizeof *connect_req);
156   int r;
157 
158   ASSERT_OK(uv_ip4_addr("127.0.0.1", TEST_PORT, &addr));
159   ASSERT_NOT_NULL(client);
160   ASSERT_NOT_NULL(connect_req);
161 
162   r = uv_tcp_init(uv_default_loop(), client);
163   ASSERT_OK(r);
164 
165   r = uv_tcp_connect(connect_req,
166                      client,
167                      (const struct sockaddr*) &addr,
168                      connect_cb);
169   ASSERT_OK(r);
170 }
171 
172 
173 
TEST_IMPL(delayed_accept)174 TEST_IMPL(delayed_accept) {
175   start_server();
176 
177   client_connect();
178   client_connect();
179 
180   uv_run(uv_default_loop(), UV_RUN_DEFAULT);
181 
182   ASSERT_EQ(2, connection_cb_called);
183   ASSERT_EQ(2, do_accept_called);
184   ASSERT_EQ(2, connect_cb_called);
185   ASSERT_EQ(7, close_cb_called);
186 
187   MAKE_VALGRIND_HAPPY(uv_default_loop());
188   return 0;
189 }
190