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test-poll-multiple-handles.c revision 1.1 
      1 /* Copyright 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 <errno.h>
     23 
     24 #ifndef _WIN32
     25 # include <fcntl.h>
     26 # include <sys/socket.h>
     27 # include <unistd.h>
     28 #endif
     29 
     30 #include "uv.h"
     31 #include "task.h"
     32 
     33 
     34 static int close_cb_called = 0;
     35 
     36 
     37 static void close_cb(uv_handle_t* handle) {
     38   close_cb_called++;
     39 }
     40 
     41 static void poll_cb(uv_poll_t* handle, int status, int events) {
     42   /* Not a bound socket, linux immediately reports UV_READABLE, other OS do not */
     43   ASSERT(events == UV_READABLE);
     44 }
     45 
     46 TEST_IMPL(poll_multiple_handles) {
     47   uv_os_sock_t sock;
     48   uv_poll_t first_poll_handle, second_poll_handle;
     49 
     50 #ifdef _WIN32
     51   {
     52     struct WSAData wsa_data;
     53     int r = WSAStartup(MAKEWORD(2, 2), &wsa_data);
     54     ASSERT(r == 0);
     55   }
     56 #endif
     57 
     58   sock = socket(AF_INET, SOCK_STREAM, 0);
     59 #ifdef _WIN32
     60   ASSERT(sock != INVALID_SOCKET);
     61 #else
     62   ASSERT(sock != -1);
     63 #endif
     64   ASSERT(0 == uv_poll_init_socket(uv_default_loop(), &first_poll_handle, sock));
     65   ASSERT(0 == uv_poll_init_socket(uv_default_loop(), &second_poll_handle, sock));
     66 
     67   ASSERT(0 == uv_poll_start(&first_poll_handle, UV_READABLE, poll_cb));
     68 
     69   /* We may not start polling while another polling handle is active
     70    * on that fd.
     71    */
     72 #ifndef _WIN32
     73   /* We do not track handles in an O(1) lookupable way on Windows,
     74    * so not checking that here.
     75    */
     76   ASSERT(uv_poll_start(&second_poll_handle, UV_READABLE, poll_cb) == UV_EEXIST);
     77 #endif
     78 
     79   /* After stopping the other polling handle, we now should be able to poll */
     80   ASSERT(0 == uv_poll_stop(&first_poll_handle));
     81   ASSERT(0 == uv_poll_start(&second_poll_handle, UV_READABLE, poll_cb));
     82 
     83   /* Closing an already stopped polling handle is safe in any case */
     84   uv_close((uv_handle_t*) &first_poll_handle, close_cb);
     85 
     86   uv_unref((uv_handle_t*) &second_poll_handle);
     87   ASSERT(0 == uv_run(uv_default_loop(), UV_RUN_DEFAULT));
     88   ASSERT(close_cb_called == 1);
     89   uv_ref((uv_handle_t*) &second_poll_handle);
     90 
     91   ASSERT(uv_is_active((uv_handle_t*) &second_poll_handle));
     92   uv_close((uv_handle_t*) &second_poll_handle, close_cb);
     93 
     94   ASSERT(0 == uv_run(uv_default_loop(), UV_RUN_DEFAULT));
     95   ASSERT(close_cb_called == 2);
     96 
     97   MAKE_VALGRIND_HAPPY();
     98   return 0;
     99 }
    100