xref: /libuv/test/test-readable-on-eof.c (revision 011a1ac1)
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20  */
21 
22 #include "uv.h"
23 #include "task.h"
24 
25 static uv_loop_t loop;
26 static uv_tcp_t tcp_client;
27 static uv_connect_t connect_req;
28 static uv_write_t write_req;
29 static char close_me_cmd[] = {'Q', 'S'};
30 
31 static int connect_cb_called;
32 static int read_cb_called;
33 static int write_cb_called;
34 static int close_cb_called;
35 
write_cb(uv_write_t * req,int status)36 static void write_cb(uv_write_t* req, int status) {
37   write_cb_called++;
38   ASSERT_OK(status);
39 }
40 
alloc_cb(uv_handle_t * handle,size_t suggested_size,uv_buf_t * buf)41 static void alloc_cb(uv_handle_t* handle,
42                      size_t suggested_size,
43                      uv_buf_t* buf) {
44   static char slab[64];
45   buf->base = slab;
46   buf->len = sizeof(slab);
47 }
48 
close_cb(uv_handle_t * handle)49 static void close_cb(uv_handle_t* handle) {
50   close_cb_called++;
51 }
52 
read_cb(uv_stream_t * handle,ssize_t nread,const uv_buf_t * buf)53 static void read_cb(uv_stream_t* handle, ssize_t nread, const uv_buf_t* buf) {
54   int r;
55 
56   ASSERT_EQ(nread, UV_EOF);
57   ASSERT_EQ(1, uv_is_readable(handle));
58   ASSERT_EQ(1, uv_is_writable(handle));
59 
60   if (++read_cb_called == 3) {
61       uv_close((uv_handle_t*) handle, close_cb);
62       ASSERT_OK(uv_is_readable(handle));
63       ASSERT_OK(uv_is_writable(handle));
64   } else {
65       r = uv_read_start((uv_stream_t*) &tcp_client, alloc_cb, read_cb);
66       ASSERT_OK(r);
67   }
68 }
69 
connect_cb(uv_connect_t * req,int status)70 static void connect_cb(uv_connect_t* req, int status) {
71   int r;
72   uv_buf_t close_me;
73 
74   connect_cb_called++;
75   ASSERT_OK(status);
76 
77   read_cb((uv_stream_t*) &tcp_client, UV_EOF, NULL);
78 
79   close_me = uv_buf_init(close_me_cmd, sizeof(close_me_cmd));
80 
81   r = uv_write(&write_req,
82                (uv_stream_t*) &tcp_client,
83                &close_me,
84                1,
85                write_cb);
86 
87   ASSERT_OK(r);
88 }
89 
TEST_IMPL(readable_on_eof)90 TEST_IMPL(readable_on_eof) {
91   struct sockaddr_in sa;
92   ASSERT_OK(uv_ip4_addr("127.0.0.1", TEST_PORT, &sa));
93   ASSERT_OK(uv_loop_init(&loop));
94   ASSERT_OK(uv_tcp_init(&loop, &tcp_client));
95 
96   ASSERT_OK(uv_tcp_connect(&connect_req,
97                            &tcp_client,
98                            (const struct sockaddr*) &sa,
99                            connect_cb));
100 
101   ASSERT_OK(uv_run(&loop, UV_RUN_DEFAULT));
102 
103   ASSERT_EQ(1, connect_cb_called);
104   ASSERT_EQ(3, read_cb_called);
105   ASSERT_EQ(1, write_cb_called);
106   ASSERT_EQ(1, close_cb_called);
107 
108   MAKE_VALGRIND_HAPPY(&loop);
109   return 0;
110 }
111