/* 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 #include #include static void connection_cb(uv_stream_t* server, int status); static void connect_cb(uv_connect_t* req, int status); static void write_cb(uv_write_t* req, int status); static void read_cb(uv_stream_t* stream, ssize_t nread, uv_buf_t buf); static uv_buf_t alloc_cb(uv_handle_t* handle, size_t suggested_size); static uv_tcp_t tcp_server; static uv_tcp_t tcp_client; static uv_tcp_t tcp_peer; /* client socket as accept()-ed by server */ static uv_connect_t connect_req; static int write_cb_called; static int write_cb_error_called; typedef struct { uv_write_t req; uv_buf_t buf; } write_req_t; static void connection_cb(uv_stream_t* server, int status) { int r; ASSERT(server == (uv_stream_t*)&tcp_server); ASSERT(status == 0); r = uv_tcp_init(server->loop, &tcp_peer); ASSERT(r == 0); r = uv_accept(server, (uv_stream_t*)&tcp_peer); ASSERT(r == 0); r = uv_read_start((uv_stream_t*)&tcp_peer, alloc_cb, read_cb); ASSERT(r == 0); } static uv_buf_t alloc_cb(uv_handle_t* handle, size_t suggested_size) { static char slab[1024]; return uv_buf_init(slab, sizeof slab); } static void read_cb(uv_stream_t* stream, ssize_t nread, uv_buf_t buf) { uv_close((uv_handle_t*)&tcp_server, NULL); uv_close((uv_handle_t*)&tcp_peer, NULL); } static void connect_cb(uv_connect_t* req, int status) { uv_buf_t buf; size_t size; char* data; int r; write_req_t* wr; ASSERT(req == &connect_req); ASSERT(status == 0); while (1) { size = 10 * 1024 * 1024; data = malloc(size); ASSERT(data != NULL); memset(data, '$', size); buf = uv_buf_init(data, size); wr = (write_req_t*) malloc(sizeof *wr); wr->buf = buf; wr->req.data = data; r = uv_write(&(wr->req), req->handle, &wr->buf, 1, write_cb); ASSERT(r == 0); if (req->handle->write_queue_size >= size * 2) { break; } } } static void write_cb(uv_write_t* req, int status) { write_req_t* wr; wr = (write_req_t*) req; if (status == -1) { write_cb_error_called++; } if (req->handle->write_queue_size == 0) { uv_close((uv_handle_t*)&tcp_client, NULL); } free(wr->buf.base); free(wr); write_cb_called++; } /* * Assert that a failing write does not leave * the stream's write_queue_size in an inconsistent state. */ TEST_IMPL(tcp_write_error) { uv_loop_t* loop; int r; loop = uv_default_loop(); ASSERT(loop != NULL); r = uv_tcp_init(loop, &tcp_server); ASSERT(r == 0); r = uv_tcp_bind(&tcp_server, uv_ip4_addr("127.0.0.1", TEST_PORT)); ASSERT(r == 0); r = uv_listen((uv_stream_t*)&tcp_server, 1, connection_cb); ASSERT(r == 0); r = uv_tcp_init(loop, &tcp_client); ASSERT(r == 0); r = uv_tcp_connect(&connect_req, &tcp_client, uv_ip4_addr("127.0.0.1", TEST_PORT), connect_cb); ASSERT(r == 0); ASSERT(write_cb_called == 0); r = uv_run(loop); ASSERT(r == 0); ASSERT(write_cb_called > 0); ASSERT(write_cb_error_called >= 1); ASSERT(tcp_client.write_queue_size == 0); return 0; }