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test: add 'unexpected read' tcp test
Regression test that verifies that the event loop doesn't busy loop when the server sends a message and the client isn't reading.
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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. | ||
*/ | ||
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#include "uv.h" | ||
#include "task.h" | ||
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static uv_check_t check_handle; | ||
static uv_timer_t timer_handle; | ||
static uv_tcp_t server_handle; | ||
static uv_tcp_t client_handle; | ||
static uv_tcp_t peer_handle; | ||
static uv_write_t write_req; | ||
static uv_connect_t connect_req; | ||
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static unsigned long ticks; /* event loop ticks */ | ||
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static void check_cb(uv_check_t* handle, int status) { | ||
ticks++; | ||
} | ||
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static void timer_cb(uv_timer_t* handle, int status) { | ||
uv_close((uv_handle_t*) &check_handle, NULL); | ||
uv_close((uv_handle_t*) &timer_handle, NULL); | ||
uv_close((uv_handle_t*) &server_handle, NULL); | ||
uv_close((uv_handle_t*) &client_handle, NULL); | ||
uv_close((uv_handle_t*) &peer_handle, NULL); | ||
} | ||
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static uv_buf_t alloc_cb(uv_handle_t* handle, size_t suggested_size) { | ||
ASSERT(0 && "alloc_cb should not have been called"); | ||
} | ||
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static void read_cb(uv_stream_t* handle, ssize_t nread, uv_buf_t buf) { | ||
ASSERT(0 && "read_cb should not have been called"); | ||
} | ||
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static void connect_cb(uv_connect_t* req, int status) { | ||
ASSERT(req->handle == (uv_stream_t*) &client_handle); | ||
ASSERT(0 == status); | ||
} | ||
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static void write_cb(uv_write_t* req, int status) { | ||
ASSERT(req->handle == (uv_stream_t*) &peer_handle); | ||
ASSERT(0 == status); | ||
} | ||
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static void connection_cb(uv_stream_t* handle, int status) { | ||
uv_buf_t buf; | ||
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buf = uv_buf_init("PING", 4); | ||
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ASSERT(0 == status); | ||
ASSERT(0 == uv_tcp_init(uv_default_loop(), &peer_handle)); | ||
ASSERT(0 == uv_accept(handle, (uv_stream_t*) &peer_handle)); | ||
ASSERT(0 == uv_read_start((uv_stream_t*) &peer_handle, alloc_cb, read_cb)); | ||
ASSERT(0 == uv_write(&write_req, (uv_stream_t*) &peer_handle, | ||
&buf, 1, write_cb)); | ||
} | ||
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TEST_IMPL(tcp_unexpected_read) { | ||
struct sockaddr_in addr; | ||
uv_loop_t* loop; | ||
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addr = uv_ip4_addr("127.0.0.1", TEST_PORT); | ||
loop = uv_default_loop(); | ||
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ASSERT(0 == uv_timer_init(loop, &timer_handle)); | ||
ASSERT(0 == uv_timer_start(&timer_handle, timer_cb, 1000, 0)); | ||
ASSERT(0 == uv_check_init(loop, &check_handle)); | ||
ASSERT(0 == uv_check_start(&check_handle, check_cb)); | ||
ASSERT(0 == uv_tcp_init(loop, &server_handle)); | ||
ASSERT(0 == uv_tcp_init(loop, &client_handle)); | ||
ASSERT(0 == uv_tcp_bind(&server_handle, addr)); | ||
ASSERT(0 == uv_listen((uv_stream_t*) &server_handle, 1, connection_cb)); | ||
ASSERT(0 == uv_tcp_connect(&connect_req, &client_handle, addr, connect_cb)); | ||
ASSERT(0 == uv_run(loop)); | ||
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/* This is somewhat inexact but the idea is that the event loop should not | ||
* start busy looping when the server sends a message and the client isn't | ||
* reading. | ||
*/ | ||
ASSERT(ticks <= 10); | ||
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return 0; | ||
} |
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