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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 "runner.h" | ||
#include "task.h" | ||
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#include <stdio.h> | ||
#include <string.h> | ||
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typedef struct { | ||
uv_loop_t* loop; | ||
uv_thread_t thread; | ||
uv_async_t recv_channel; | ||
uv_async_t send_channel; | ||
uv_tcp_t server; | ||
uv_tcp_t conn; | ||
int connection_accepted; | ||
int close_cb_called; | ||
} worker_t; | ||
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static worker_t parent, child; | ||
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static volatile uv_stream_info_t dup_stream; | ||
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typedef struct { | ||
uv_connect_t conn_req; | ||
uv_tcp_t conn; | ||
} tcp_conn; | ||
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#define CONN_COUNT 100 | ||
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static void close_cb(uv_handle_t* handle) { | ||
worker_t* worker = (worker_t*)handle->data; | ||
ASSERT(worker); | ||
worker->close_cb_called++; | ||
} | ||
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static void on_connection(uv_stream_t* server, int status) { | ||
int r; | ||
worker_t* worker = CONTAINING_RECORD(server, worker_t, server); | ||
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if (!worker->connection_accepted) { | ||
/* | ||
* Accept the connection and close it. | ||
*/ | ||
ASSERT(status == 0); | ||
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r = uv_tcp_init(server->loop, &worker->conn); | ||
ASSERT(r == 0); | ||
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worker->conn.data = worker; | ||
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r = uv_accept(server, (uv_stream_t*)&worker->conn); | ||
ASSERT(r == 0); | ||
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worker->connection_accepted = 1; | ||
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uv_close((uv_handle_t*)&worker->conn, close_cb); | ||
uv_close((uv_handle_t*)&worker->recv_channel, close_cb); | ||
uv_close((uv_handle_t*)server, close_cb); | ||
} | ||
} | ||
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static void close_client_conn_cb(uv_handle_t* handle) { | ||
tcp_conn* p = (tcp_conn*)handle->data; | ||
free(p); | ||
} | ||
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static void connect_cb(uv_connect_t* req, int status) { | ||
uv_close((uv_handle_t*)req->handle, close_client_conn_cb); | ||
} | ||
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static void make_many_connections() { | ||
tcp_conn* conn; | ||
struct sockaddr_in addr; | ||
int r, i; | ||
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for (i = 0; i < CONN_COUNT; i++) { | ||
conn = malloc(sizeof(*conn)); | ||
ASSERT(conn); | ||
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r = uv_tcp_init(uv_default_loop(), &conn->conn); | ||
ASSERT(r == 0); | ||
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addr = uv_ip4_addr("127.0.0.1", TEST_PORT); | ||
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r = uv_tcp_connect(&conn->conn_req, (uv_tcp_t*)&conn->conn, addr, connect_cb); | ||
ASSERT(r == 0); | ||
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conn->conn.data = conn; | ||
} | ||
} | ||
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void on_parent_msg(uv_async_t* handle, int status) { | ||
int r; | ||
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ASSERT(dup_stream.type == UV_TCP); | ||
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/* Import the shared TCP server, and start listening on it. */ | ||
r = uv_tcp_init(parent.loop, &parent.server); | ||
ASSERT(r == 0); | ||
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parent.server.data = &parent; | ||
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r = uv_import((uv_stream_t*)&parent.server, | ||
(uv_stream_info_t*)&dup_stream); | ||
ASSERT(r == 0); | ||
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r = uv_listen((uv_stream_t*)&parent.server, 12, on_connection); | ||
ASSERT(r == 0); | ||
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/* Create a bunch of connections to get both servers to accept. */ | ||
make_many_connections(); | ||
} | ||
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void on_child_msg(uv_async_t* handle, int status) { | ||
ASSERT(!"no"); | ||
} | ||
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static void child_thread_entry(void* arg) { | ||
int r; | ||
int listen_after_write = (int)arg; | ||
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r = uv_tcp_init(child.loop, &child.server); | ||
ASSERT(r == 0); | ||
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child.server.data = &child; | ||
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r = uv_tcp_bind(&child.server, uv_ip4_addr("0.0.0.0", TEST_PORT)); | ||
ASSERT(r == 0); | ||
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if (!listen_after_write) { | ||
r = uv_listen((uv_stream_t*)&child.server, 12, on_connection); | ||
ASSERT(r == 0); | ||
} | ||
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r = uv_export((uv_stream_t*)&child.server, | ||
(uv_stream_info_t*)&dup_stream); | ||
ASSERT(r == 0); | ||
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r = uv_async_send(&child.send_channel); | ||
ASSERT(r == 0); | ||
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if (listen_after_write) { | ||
r = uv_listen((uv_stream_t*)&child.server, 12, on_connection); | ||
ASSERT(r == 0); | ||
} | ||
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r = uv_run(child.loop); | ||
ASSERT(r == 0); | ||
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ASSERT(child.connection_accepted == 1); | ||
ASSERT(child.close_cb_called == 3); | ||
} | ||
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static void run_ipc_threads_test(int listen_after_write) { | ||
int r; | ||
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parent.loop = uv_default_loop(); | ||
child.loop = uv_loop_new(); | ||
ASSERT(child.loop); | ||
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r = uv_async_init(parent.loop, &parent.recv_channel, on_parent_msg); | ||
ASSERT(r == 0); | ||
parent.recv_channel.data = &parent; | ||
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r = uv_async_init(child.loop, &parent.send_channel, on_child_msg); | ||
ASSERT(r == 0); | ||
parent.send_channel.data = &child; | ||
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child.send_channel = parent.recv_channel; | ||
child.recv_channel = parent.send_channel; | ||
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r = uv_thread_create(&child.thread, child_thread_entry, (void*)listen_after_write); | ||
ASSERT(r == 0); | ||
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r = uv_run(parent.loop); | ||
ASSERT(r == 0); | ||
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ASSERT(parent.connection_accepted == 1); | ||
ASSERT(parent.close_cb_called == 3); | ||
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r = uv_thread_join(&child.thread); | ||
ASSERT(r == 0); | ||
} | ||
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TEST_IMPL(ipc_threads_listen_after_write) { | ||
run_ipc_threads_test(1); | ||
return 0; | ||
} | ||
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TEST_IMPL(ipc_threads_listen_before_write) { | ||
run_ipc_threads_test(0); | ||
return 0; | ||
} |
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