Annotation of src/external/mit/libuv/dist/test/test-udp-send-hang-loop.c, Revision 1.1
1.1 ! christos 1: /* Copyright The libuv project and 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: #include <stdio.h>
! 26: #include <stdlib.h>
! 27: #include <string.h>
! 28:
! 29: #define CHECK_OBJECT(handle, type, parent) \
! 30: ASSERT((type*)(handle) == &(parent))
! 31:
! 32: static uv_udp_t client;
! 33: static uv_idle_t idle_handle;
! 34: static uv_udp_send_t send_req;
! 35: static uv_buf_t buf;
! 36: static struct sockaddr_in addr;
! 37: static char send_data[1024];
! 38:
! 39: static int loop_hang_called;
! 40:
! 41: static void send_cb(uv_udp_send_t* req, int status);
! 42:
! 43:
! 44: static void idle_cb(uv_idle_t* handle) {
! 45: int r;
! 46:
! 47: ASSERT(send_req.handle == NULL);
! 48: CHECK_OBJECT(handle, uv_idle_t, idle_handle);
! 49: ASSERT(0 == uv_idle_stop(handle));
! 50:
! 51: /* It probably would have stalled by now if it's going to stall at all. */
! 52: if (++loop_hang_called > 1000) {
! 53: uv_close((uv_handle_t*) &client, NULL);
! 54: uv_close((uv_handle_t*) &idle_handle, NULL);
! 55: return;
! 56: }
! 57:
! 58: r = uv_udp_send(&send_req,
! 59: &client,
! 60: &buf,
! 61: 1,
! 62: (const struct sockaddr*) &addr,
! 63: send_cb);
! 64: ASSERT(r == 0);
! 65: }
! 66:
! 67:
! 68: static void send_cb(uv_udp_send_t* req, int status) {
! 69: ASSERT(req != NULL);
! 70: ASSERT(status == 0 || status == UV_ENETUNREACH);
! 71: CHECK_OBJECT(req->handle, uv_udp_t, client);
! 72: CHECK_OBJECT(req, uv_udp_send_t, send_req);
! 73: req->handle = NULL;
! 74:
! 75: ASSERT(0 == uv_idle_start(&idle_handle, idle_cb));
! 76: }
! 77:
! 78:
! 79: TEST_IMPL(udp_send_hang_loop) {
! 80: ASSERT(0 == uv_idle_init(uv_default_loop(), &idle_handle));
! 81:
! 82: /* 192.0.2.0/8 is "TEST-NET" and reserved for documentation.
! 83: * Good for us, though. Since we want to have something unreachable.
! 84: */
! 85: ASSERT(0 == uv_ip4_addr("192.0.2.3", TEST_PORT, &addr));
! 86:
! 87: ASSERT(0 == uv_udp_init(uv_default_loop(), &client));
! 88:
! 89: buf = uv_buf_init(send_data, sizeof(send_data));
! 90:
! 91: ASSERT(0 == uv_idle_start(&idle_handle, idle_cb));
! 92:
! 93: uv_run(uv_default_loop(), UV_RUN_DEFAULT);
! 94:
! 95: ASSERT(loop_hang_called > 1000);
! 96:
! 97: MAKE_VALGRIND_HAPPY();
! 98: return 0;
! 99: }
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