From 540d723fa43eb72e2097c78373124f108f17f327 Mon Sep 17 00:00:00 2001 From: Ryan Liptak Date: Tue, 28 Jul 2020 17:14:42 -0700 Subject: [PATCH] test: add udp-mmsg test PR-URL: https://github.com/libuv/libuv/pull/2818 Reviewed-By: Jameson Nash --- CMakeLists.txt | 1 + Makefile.am | 1 + test/test-list.h | 2 + test/test-udp-mmsg.c | 126 +++++++++++++++++++++++++++++++++++++++++++ 4 files changed, 130 insertions(+) create mode 100644 test/test-udp-mmsg.c diff --git a/CMakeLists.txt b/CMakeLists.txt index 1595aed6..088121ff 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -505,6 +505,7 @@ if(LIBUV_BUILD_TESTS) test/test-udp-create-socket-early.c test/test-udp-dgram-too-big.c test/test-udp-ipv6.c + test/test-udp-mmsg.c test/test-udp-multicast-interface.c test/test-udp-multicast-interface6.c test/test-udp-multicast-join.c diff --git a/Makefile.am b/Makefile.am index ba60d80a..97bf3dda 100644 --- a/Makefile.am +++ b/Makefile.am @@ -290,6 +290,7 @@ test_run_tests_SOURCES = test/blackhole-server.c \ test/test-udp-create-socket-early.c \ test/test-udp-dgram-too-big.c \ test/test-udp-ipv6.c \ + test/test-udp-mmsg.c \ test/test-udp-multicast-interface.c \ test/test-udp-multicast-interface6.c \ test/test-udp-multicast-join.c \ diff --git a/test/test-list.h b/test/test-list.h index 7e8a4806..72c5722b 100644 --- a/test/test-list.h +++ b/test/test-list.h @@ -163,6 +163,7 @@ TEST_DECLARE (udp_send_and_recv) TEST_DECLARE (udp_send_hang_loop) TEST_DECLARE (udp_send_immediate) TEST_DECLARE (udp_send_unreachable) +TEST_DECLARE (udp_mmsg) TEST_DECLARE (udp_multicast_join) TEST_DECLARE (udp_multicast_join6) TEST_DECLARE (udp_multicast_ttl) @@ -723,6 +724,7 @@ TASK_LIST_START TEST_ENTRY (udp_options) TEST_ENTRY (udp_options6) TEST_ENTRY (udp_no_autobind) + TEST_ENTRY (udp_mmsg) TEST_ENTRY (udp_multicast_interface) TEST_ENTRY (udp_multicast_interface6) TEST_ENTRY (udp_multicast_join) diff --git a/test/test-udp-mmsg.c b/test/test-udp-mmsg.c new file mode 100644 index 00000000..88f61a28 --- /dev/null +++ b/test/test-udp-mmsg.c @@ -0,0 +1,126 @@ +/* Copyright libuv 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 +#include +#include + +#define CHECK_HANDLE(handle) \ + ASSERT((uv_udp_t*)(handle) == &recver || (uv_udp_t*)(handle) == &sender) + +#define BUFFER_MULTIPLIER 4 +#define BUFFER_SIZE (BUFFER_MULTIPLIER * 64 * 1024) +#define NUM_SENDS 8 +#define EXPECTED_MMSG_ALLOCS (NUM_SENDS / BUFFER_MULTIPLIER) + +static uv_udp_t recver; +static uv_udp_t sender; +static int recv_cb_called; +static int close_cb_called; +static int alloc_cb_called; + + +static void alloc_cb(uv_handle_t* handle, + size_t suggested_size, + uv_buf_t* buf) { + CHECK_HANDLE(handle); + /* Actually malloc to exercise free'ing the buffer later */ + buf->base = malloc(BUFFER_SIZE); + ASSERT(buf->base != NULL); + buf->len = BUFFER_SIZE; + alloc_cb_called++; +} + + +static void close_cb(uv_handle_t* handle) { + CHECK_HANDLE(handle); + ASSERT(uv_is_closing(handle)); + close_cb_called++; +} + + +static void recv_cb(uv_udp_t* handle, + ssize_t nread, + const uv_buf_t* rcvbuf, + const struct sockaddr* addr, + unsigned flags) { + ASSERT_GE(nread, 0); + + if (nread > 0) { + ASSERT_EQ(nread, 4); + ASSERT(addr != NULL); + ASSERT_MEM_EQ("PING", rcvbuf->base, nread); + + recv_cb_called++; + if (recv_cb_called == NUM_SENDS) { + uv_close((uv_handle_t*)handle, close_cb); + uv_close((uv_handle_t*)&sender, close_cb); + } + } + + /* Don't free if the buffer could be reused via mmsg */ + if (rcvbuf && !(flags & UV_UDP_MMSG_CHUNK)) + free(rcvbuf->base); +} + + +TEST_IMPL(udp_mmsg) { + struct sockaddr_in addr; + uv_buf_t buf; + int i; + + ASSERT_EQ(0, uv_ip4_addr("0.0.0.0", TEST_PORT, &addr)); + + ASSERT_EQ(0, uv_udp_init_ex(uv_default_loop(), &recver, + AF_UNSPEC | UV_UDP_RECVMMSG)); + + ASSERT_EQ(0, uv_udp_bind(&recver, (const struct sockaddr*) &addr, 0)); + + ASSERT_EQ(0, uv_udp_recv_start(&recver, alloc_cb, recv_cb)); + + ASSERT_EQ(0, uv_ip4_addr("127.0.0.1", TEST_PORT, &addr)); + + ASSERT_EQ(0, uv_udp_init(uv_default_loop(), &sender)); + + buf = uv_buf_init("PING", 4); + for (i = 0; i < NUM_SENDS; i++) { + ASSERT_EQ(4, uv_udp_try_send(&sender, &buf, 1, (const struct sockaddr*) &addr)); + } + + ASSERT_EQ(0, uv_run(uv_default_loop(), UV_RUN_DEFAULT)); + + ASSERT_EQ(close_cb_called, 2); + ASSERT_EQ(recv_cb_called, NUM_SENDS); + + ASSERT_EQ(sender.send_queue_size, 0); + ASSERT_EQ(recver.send_queue_size, 0); + + printf("%d allocs for %d recvs\n", alloc_cb_called, recv_cb_called); + + /* On platforms that don't support mmsg, each recv gets its own alloc */ + ASSERT(alloc_cb_called == EXPECTED_MMSG_ALLOCS || alloc_cb_called == recv_cb_called); + + MAKE_VALGRIND_HAPPY(); + return 0; +}