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      1 /* Copyright the libuv project 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 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 
     36 static void write_cb(uv_write_t* req, int status) {
     37   write_cb_called++;
     38   ASSERT_OK(status);
     39 }
     40 
     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 
     49 static void close_cb(uv_handle_t* handle) {
     50   close_cb_called++;
     51 }
     52 
     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 
     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 
     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