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| 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 | + ASSERT(1 == uv_run(uv_default_loop(), UV_RUN_ONCE)); |
| 87 | + ASSERT(close_cb_called == 1); |
| 88 | + |
| 89 | + ASSERT(uv_is_active((uv_handle_t*) &second_poll_handle)); |
| 90 | + uv_close((uv_handle_t*) &second_poll_handle, close_cb); |
| 91 | + |
| 92 | + ASSERT(0 == uv_run(uv_default_loop(), UV_RUN_DEFAULT)); |
| 93 | + ASSERT(close_cb_called == 2); |
| 94 | + |
| 95 | + MAKE_VALGRIND_HAPPY(); |
| 96 | + return 0; |
| 97 | +} |
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