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-rw-r--r--3rdparty/libuv/test/test-tcp-close-accept.c188
1 files changed, 188 insertions, 0 deletions
diff --git a/3rdparty/libuv/test/test-tcp-close-accept.c b/3rdparty/libuv/test/test-tcp-close-accept.c
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+++ b/3rdparty/libuv/test/test-tcp-close-accept.c
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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.
+ */
+
+/* this test is Unix only */
+#ifndef _WIN32
+
+#include "uv.h"
+#include "task.h"
+
+#include <stdio.h>
+#include <string.h>
+
+static struct sockaddr_in addr;
+static uv_tcp_t tcp_server;
+static uv_tcp_t tcp_outgoing[2];
+static uv_tcp_t tcp_incoming[ARRAY_SIZE(tcp_outgoing)];
+static uv_connect_t connect_reqs[ARRAY_SIZE(tcp_outgoing)];
+static uv_tcp_t tcp_check;
+static uv_connect_t tcp_check_req;
+static uv_write_t write_reqs[ARRAY_SIZE(tcp_outgoing)];
+static unsigned int got_connections;
+static unsigned int close_cb_called;
+static unsigned int write_cb_called;
+static unsigned int read_cb_called;
+
+static void close_cb(uv_handle_t* handle) {
+ close_cb_called++;
+}
+
+static void write_cb(uv_write_t* req, int status) {
+ ASSERT(status == 0);
+ write_cb_called++;
+}
+
+static void connect_cb(uv_connect_t* req, int status) {
+ unsigned int i;
+ uv_buf_t buf;
+ uv_stream_t* outgoing;
+
+ if (req == &tcp_check_req) {
+ ASSERT(status != 0);
+
+ /* Close check and incoming[0], time to finish test */
+ uv_close((uv_handle_t*) &tcp_incoming[0], close_cb);
+ uv_close((uv_handle_t*) &tcp_check, close_cb);
+ return;
+ }
+
+ ASSERT(status == 0);
+ ASSERT(connect_reqs <= req);
+ ASSERT(req <= connect_reqs + ARRAY_SIZE(connect_reqs));
+ i = req - connect_reqs;
+
+ buf = uv_buf_init("x", 1);
+ outgoing = (uv_stream_t*) &tcp_outgoing[i];
+ ASSERT(0 == uv_write(&write_reqs[i], outgoing, &buf, 1, write_cb));
+}
+
+static void alloc_cb(uv_handle_t* handle, size_t size, uv_buf_t* buf) {
+ static char slab[1];
+ buf->base = slab;
+ buf->len = sizeof(slab);
+}
+
+static void read_cb(uv_stream_t* stream, ssize_t nread, const uv_buf_t* buf) {
+ uv_loop_t* loop;
+ unsigned int i;
+
+ /* Only first stream should receive read events */
+ ASSERT(stream == (uv_stream_t*) &tcp_incoming[0]);
+ ASSERT(0 == uv_read_stop(stream));
+ ASSERT(1 == nread);
+
+ loop = stream->loop;
+ read_cb_called++;
+
+ /* Close all active incomings, except current one */
+ for (i = 1; i < got_connections; i++)
+ uv_close((uv_handle_t*) &tcp_incoming[i], close_cb);
+
+ /* Create new fd that should be one of the closed incomings */
+ ASSERT(0 == uv_tcp_init(loop, &tcp_check));
+ ASSERT(0 == uv_tcp_connect(&tcp_check_req,
+ &tcp_check,
+ (const struct sockaddr*) &addr,
+ connect_cb));
+ ASSERT(0 == uv_read_start((uv_stream_t*) &tcp_check, alloc_cb, read_cb));
+
+ /* Close server, so no one will connect to it */
+ uv_close((uv_handle_t*) &tcp_server, close_cb);
+}
+
+static void connection_cb(uv_stream_t* server, int status) {
+ unsigned int i;
+ uv_tcp_t* incoming;
+
+ ASSERT(server == (uv_stream_t*) &tcp_server);
+
+ /* Ignore tcp_check connection */
+ if (got_connections == ARRAY_SIZE(tcp_incoming))
+ return;
+
+ /* Accept everyone */
+ incoming = &tcp_incoming[got_connections++];
+ ASSERT(0 == uv_tcp_init(server->loop, incoming));
+ ASSERT(0 == uv_accept(server, (uv_stream_t*) incoming));
+
+ if (got_connections != ARRAY_SIZE(tcp_incoming))
+ return;
+
+ /* Once all clients are accepted - start reading */
+ for (i = 0; i < ARRAY_SIZE(tcp_incoming); i++) {
+ incoming = &tcp_incoming[i];
+ ASSERT(0 == uv_read_start((uv_stream_t*) incoming, alloc_cb, read_cb));
+ }
+}
+
+TEST_IMPL(tcp_close_accept) {
+ unsigned int i;
+ uv_loop_t* loop;
+ uv_tcp_t* client;
+
+ /*
+ * A little explanation of what goes on below:
+ *
+ * We'll create server and connect to it using two clients, each writing one
+ * byte once connected.
+ *
+ * When all clients will be accepted by server - we'll start reading from them
+ * and, on first client's first byte, will close second client and server.
+ * After that, we'll immediately initiate new connection to server using
+ * tcp_check handle (thus, reusing fd from second client).
+ *
+ * In this situation uv__io_poll()'s event list should still contain read
+ * event for second client, and, if not cleaned up properly, `tcp_check` will
+ * receive stale event of second incoming and invoke `connect_cb` with zero
+ * status.
+ */
+
+ loop = uv_default_loop();
+ ASSERT(0 == uv_ip4_addr("127.0.0.1", TEST_PORT, &addr));
+
+ ASSERT(0 == uv_tcp_init(loop, &tcp_server));
+ ASSERT(0 == uv_tcp_bind(&tcp_server, (const struct sockaddr*) &addr, 0));
+ ASSERT(0 == uv_listen((uv_stream_t*) &tcp_server,
+ ARRAY_SIZE(tcp_outgoing),
+ connection_cb));
+
+ for (i = 0; i < ARRAY_SIZE(tcp_outgoing); i++) {
+ client = tcp_outgoing + i;
+
+ ASSERT(0 == uv_tcp_init(loop, client));
+ ASSERT(0 == uv_tcp_connect(&connect_reqs[i],
+ client,
+ (const struct sockaddr*) &addr,
+ connect_cb));
+ }
+
+ uv_run(loop, UV_RUN_DEFAULT);
+
+ ASSERT(ARRAY_SIZE(tcp_outgoing) == got_connections);
+ ASSERT((ARRAY_SIZE(tcp_outgoing) + 2) == close_cb_called);
+ ASSERT(ARRAY_SIZE(tcp_outgoing) == write_cb_called);
+ ASSERT(1 == read_cb_called);
+
+ MAKE_VALGRIND_HAPPY();
+ return 0;
+}
+
+#endif /* !_WIN32 */