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- /* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to
- * deal in the Software without restriction, including without limitation the
- * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
- * sell copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
- * IN THE SOFTWARE.
- */
- #include "uv.h"
- #include "task.h"
- #include <stdio.h>
- #include <stdlib.h>
- #include <string.h>
- #define CHECK_HANDLE(handle) \
- ASSERT((uv_udp_t*)(handle) == &server || (uv_udp_t*)(handle) == &client)
- static uv_udp_t server;
- static uv_udp_t client;
- static int cl_recv_cb_called;
- static int sv_send_cb_called;
- static int close_cb_called;
- static void alloc_cb(uv_handle_t* handle,
- size_t suggested_size,
- uv_buf_t* buf) {
- static char slab[65536];
- CHECK_HANDLE(handle);
- ASSERT(suggested_size <= sizeof(slab));
- buf->base = slab;
- buf->len = sizeof(slab);
- }
- static void close_cb(uv_handle_t* handle) {
- CHECK_HANDLE(handle);
- close_cb_called++;
- }
- static void sv_send_cb(uv_udp_send_t* req, int status) {
- ASSERT(req != NULL);
- ASSERT(status == 0);
- CHECK_HANDLE(req->handle);
- sv_send_cb_called++;
- uv_close((uv_handle_t*) req->handle, close_cb);
- }
- static void cl_recv_cb(uv_udp_t* handle,
- ssize_t nread,
- const uv_buf_t* buf,
- const struct sockaddr* addr,
- unsigned flags) {
- CHECK_HANDLE(handle);
- ASSERT(flags == 0);
- cl_recv_cb_called++;
- if (nread < 0) {
- ASSERT(0 && "unexpected error");
- }
- if (nread == 0) {
- /* Returning unused buffer */
- /* Don't count towards cl_recv_cb_called */
- ASSERT(addr == NULL);
- return;
- }
- ASSERT(addr != NULL);
- ASSERT(nread == 4);
- ASSERT(!memcmp("PING", buf->base, nread));
- /* we are done with the client handle, we can close it */
- uv_close((uv_handle_t*) &client, close_cb);
- }
- TEST_IMPL(udp_multicast_join) {
- int r;
- uv_udp_send_t req;
- uv_buf_t buf;
- struct sockaddr_in addr;
- ASSERT(0 == uv_ip4_addr("127.0.0.1", TEST_PORT, &addr));
- r = uv_udp_init(uv_default_loop(), &server);
- ASSERT(r == 0);
- r = uv_udp_init(uv_default_loop(), &client);
- ASSERT(r == 0);
- /* bind to the desired port */
- r = uv_udp_bind(&client, (const struct sockaddr*) &addr, 0);
- ASSERT(r == 0);
- /* join the multicast channel */
- r = uv_udp_set_membership(&client, "239.255.0.1", NULL, UV_JOIN_GROUP);
- ASSERT(r == 0);
- r = uv_udp_recv_start(&client, alloc_cb, cl_recv_cb);
- ASSERT(r == 0);
- buf = uv_buf_init("PING", 4);
- /* server sends "PING" */
- r = uv_udp_send(&req,
- &server,
- &buf,
- 1,
- (const struct sockaddr*) &addr,
- sv_send_cb);
- ASSERT(r == 0);
- ASSERT(close_cb_called == 0);
- ASSERT(cl_recv_cb_called == 0);
- ASSERT(sv_send_cb_called == 0);
- /* run the loop till all events are processed */
- uv_run(uv_default_loop(), UV_RUN_DEFAULT);
- ASSERT(cl_recv_cb_called == 1);
- ASSERT(sv_send_cb_called == 1);
- ASSERT(close_cb_called == 2);
- MAKE_VALGRIND_HAPPY();
- return 0;
- }
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