| /* 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 <stdio.h> |
| #include <string.h> |
| |
| static uv_pipe_t channel; |
| static uv_tcp_t tcp_server; |
| static uv_tcp_t tcp_connection; |
| |
| static int exit_cb_called; |
| static int read2_cb_called; |
| static int tcp_write_cb_called; |
| static int tcp_read_cb_called; |
| static int on_pipe_read_called; |
| static int local_conn_accepted; |
| static int remote_conn_accepted; |
| static int tcp_server_listening; |
| static uv_write_t write_req; |
| static uv_pipe_t channel; |
| static uv_tcp_t tcp_server; |
| static uv_write_t conn_notify_req; |
| static int close_cb_called; |
| static int connection_accepted; |
| static int tcp_conn_read_cb_called; |
| static int tcp_conn_write_cb_called; |
| |
| typedef struct { |
| uv_connect_t conn_req; |
| uv_write_t tcp_write_req; |
| uv_tcp_t conn; |
| } tcp_conn; |
| |
| #define CONN_COUNT 100 |
| |
| |
| static void close_server_conn_cb(uv_handle_t* handle) { |
| free(handle); |
| } |
| |
| |
| static void on_connection(uv_stream_t* server, int status) { |
| uv_tcp_t* conn; |
| int r; |
| |
| if (!local_conn_accepted) { |
| /* Accept the connection and close it. Also and close the server. */ |
| ASSERT(status == 0); |
| ASSERT((uv_stream_t*)&tcp_server == server); |
| |
| conn = malloc(sizeof(*conn)); |
| ASSERT(conn); |
| r = uv_tcp_init(server->loop, conn); |
| ASSERT(r == 0); |
| |
| r = uv_accept(server, (uv_stream_t*)conn); |
| ASSERT(r == 0); |
| |
| uv_close((uv_handle_t*)conn, close_server_conn_cb); |
| uv_close((uv_handle_t*)server, NULL); |
| local_conn_accepted = 1; |
| } |
| } |
| |
| |
| static void exit_cb(uv_process_t* process, int exit_status, int term_signal) { |
| printf("exit_cb\n"); |
| exit_cb_called++; |
| ASSERT(exit_status == 0); |
| uv_close((uv_handle_t*)process, NULL); |
| } |
| |
| |
| static uv_buf_t on_alloc(uv_handle_t* handle, size_t suggested_size) { |
| return uv_buf_init(malloc(suggested_size), suggested_size); |
| } |
| |
| |
| static void close_client_conn_cb(uv_handle_t* handle) { |
| tcp_conn* p = (tcp_conn*)handle->data; |
| free(p); |
| } |
| |
| |
| static void connect_cb(uv_connect_t* req, int status) { |
| uv_close((uv_handle_t*)req->handle, close_client_conn_cb); |
| } |
| |
| |
| static void make_many_connections(void) { |
| tcp_conn* conn; |
| struct sockaddr_in addr; |
| int r, i; |
| |
| for (i = 0; i < CONN_COUNT; i++) { |
| conn = malloc(sizeof(*conn)); |
| ASSERT(conn); |
| |
| r = uv_tcp_init(uv_default_loop(), &conn->conn); |
| ASSERT(r == 0); |
| |
| addr = uv_ip4_addr("127.0.0.1", TEST_PORT); |
| |
| r = uv_tcp_connect(&conn->conn_req, (uv_tcp_t*)&conn->conn, addr, connect_cb); |
| ASSERT(r == 0); |
| |
| conn->conn.data = conn; |
| } |
| } |
| |
| |
| static void on_read(uv_pipe_t* pipe, ssize_t nread, uv_buf_t buf, |
| uv_handle_type pending) { |
| int r; |
| uv_buf_t outbuf; |
| uv_err_t err; |
| |
| if (nread == 0) { |
| /* Everything OK, but nothing read. */ |
| free(buf.base); |
| return; |
| } |
| |
| if (nread < 0) { |
| err = uv_last_error(pipe->loop); |
| if (err.code == UV_EOF) { |
| free(buf.base); |
| return; |
| } |
| |
| printf("error recving on channel: %s\n", uv_strerror(err)); |
| abort(); |
| } |
| |
| fprintf(stderr, "got %d bytes\n", (int)nread); |
| |
| if (!tcp_server_listening) { |
| ASSERT(nread > 0 && buf.base && pending != UV_UNKNOWN_HANDLE); |
| read2_cb_called++; |
| |
| /* Accept the pending TCP server, and start listening on it. */ |
| ASSERT(pending == UV_TCP); |
| r = uv_tcp_init(uv_default_loop(), &tcp_server); |
| ASSERT(r == 0); |
| |
| r = uv_accept((uv_stream_t*)pipe, (uv_stream_t*)&tcp_server); |
| ASSERT(r == 0); |
| |
| r = uv_listen((uv_stream_t*)&tcp_server, 12, on_connection); |
| ASSERT(r == 0); |
| |
| tcp_server_listening = 1; |
| |
| /* Make sure that the expected data is correctly multiplexed. */ |
| ASSERT(memcmp("hello\n", buf.base, nread) == 0); |
| |
| outbuf = uv_buf_init("world\n", 6); |
| r = uv_write(&write_req, (uv_stream_t*)pipe, &outbuf, 1, NULL); |
| ASSERT(r == 0); |
| |
| /* Create a bunch of connections to get both servers to accept. */ |
| make_many_connections(); |
| } else if (memcmp("accepted_connection\n", buf.base, nread) == 0) { |
| /* Remote server has accepted a connection. Close the channel. */ |
| ASSERT(pending == UV_UNKNOWN_HANDLE); |
| remote_conn_accepted = 1; |
| uv_close((uv_handle_t*)&channel, NULL); |
| } |
| |
| free(buf.base); |
| } |
| |
| |
| void spawn_helper(uv_pipe_t* channel, |
| uv_process_t* process, |
| const char* helper) { |
| uv_process_options_t options; |
| size_t exepath_size; |
| char exepath[1024]; |
| char* args[3]; |
| int r; |
| uv_stdio_container_t stdio[1]; |
| |
| r = uv_pipe_init(uv_default_loop(), channel, 1); |
| ASSERT(r == 0); |
| ASSERT(channel->ipc); |
| |
| exepath_size = sizeof(exepath); |
| r = uv_exepath(exepath, &exepath_size); |
| ASSERT(r == 0); |
| |
| exepath[exepath_size] = '\0'; |
| args[0] = exepath; |
| args[1] = (char*)helper; |
| args[2] = NULL; |
| |
| memset(&options, 0, sizeof(options)); |
| options.file = exepath; |
| options.args = args; |
| options.exit_cb = exit_cb; |
| |
| options.stdio = stdio; |
| options.stdio[0].flags = UV_CREATE_PIPE | |
| UV_READABLE_PIPE | UV_WRITABLE_PIPE; |
| options.stdio[0].data.stream = (uv_stream_t*)channel; |
| options.stdio_count = 1; |
| |
| r = uv_spawn(uv_default_loop(), process, options); |
| ASSERT(r == 0); |
| } |
| |
| |
| static void on_tcp_write(uv_write_t* req, int status) { |
| ASSERT(status == 0); |
| ASSERT(req->handle == (uv_stream_t*)&tcp_connection); |
| tcp_write_cb_called++; |
| } |
| |
| |
| static uv_buf_t on_read_alloc(uv_handle_t* handle, size_t suggested_size) { |
| uv_buf_t buf; |
| buf.base = (char*)malloc(suggested_size); |
| buf.len = suggested_size; |
| return buf; |
| } |
| |
| |
| static void on_tcp_read(uv_stream_t* tcp, ssize_t nread, uv_buf_t buf) { |
| ASSERT(nread > 0); |
| ASSERT(memcmp("hello again\n", buf.base, nread) == 0); |
| ASSERT(tcp == (uv_stream_t*)&tcp_connection); |
| free(buf.base); |
| |
| tcp_read_cb_called++; |
| |
| uv_close((uv_handle_t*)tcp, NULL); |
| uv_close((uv_handle_t*)&channel, NULL); |
| } |
| |
| |
| static void on_read_connection(uv_pipe_t* pipe, ssize_t nread, uv_buf_t buf, |
| uv_handle_type pending) { |
| int r; |
| uv_buf_t outbuf; |
| uv_err_t err; |
| |
| if (nread == 0) { |
| /* Everything OK, but nothing read. */ |
| free(buf.base); |
| return; |
| } |
| |
| if (nread < 0) { |
| err = uv_last_error(pipe->loop); |
| if (err.code == UV_EOF) { |
| free(buf.base); |
| return; |
| } |
| |
| printf("error recving on channel: %s\n", uv_strerror(err)); |
| abort(); |
| } |
| |
| fprintf(stderr, "got %d bytes\n", (int)nread); |
| |
| ASSERT(nread > 0 && buf.base && pending != UV_UNKNOWN_HANDLE); |
| read2_cb_called++; |
| |
| /* Accept the pending TCP connection */ |
| ASSERT(pending == UV_TCP); |
| r = uv_tcp_init(uv_default_loop(), &tcp_connection); |
| ASSERT(r == 0); |
| |
| r = uv_accept((uv_stream_t*)pipe, (uv_stream_t*)&tcp_connection); |
| ASSERT(r == 0); |
| |
| /* Make sure that the expected data is correctly multiplexed. */ |
| ASSERT(memcmp("hello\n", buf.base, nread) == 0); |
| |
| /* Write/read to/from the connection */ |
| outbuf = uv_buf_init("world\n", 6); |
| r = uv_write(&write_req, (uv_stream_t*)&tcp_connection, &outbuf, 1, |
| on_tcp_write); |
| ASSERT(r == 0); |
| |
| r = uv_read_start((uv_stream_t*)&tcp_connection, on_read_alloc, on_tcp_read); |
| ASSERT(r == 0); |
| |
| free(buf.base); |
| } |
| |
| |
| static int run_ipc_test(const char* helper, uv_read2_cb read_cb) { |
| uv_process_t process; |
| int r; |
| |
| spawn_helper(&channel, &process, helper); |
| uv_read2_start((uv_stream_t*)&channel, on_alloc, read_cb); |
| |
| r = uv_run(uv_default_loop(), UV_RUN_DEFAULT); |
| ASSERT(r == 0); |
| |
| MAKE_VALGRIND_HAPPY(); |
| return 0; |
| } |
| |
| |
| TEST_IMPL(ipc_listen_before_write) { |
| int r = run_ipc_test("ipc_helper_listen_before_write", on_read); |
| ASSERT(local_conn_accepted == 1); |
| ASSERT(remote_conn_accepted == 1); |
| ASSERT(read2_cb_called == 1); |
| ASSERT(exit_cb_called == 1); |
| return r; |
| } |
| |
| |
| TEST_IMPL(ipc_listen_after_write) { |
| int r = run_ipc_test("ipc_helper_listen_after_write", on_read); |
| ASSERT(local_conn_accepted == 1); |
| ASSERT(remote_conn_accepted == 1); |
| ASSERT(read2_cb_called == 1); |
| ASSERT(exit_cb_called == 1); |
| return r; |
| } |
| |
| |
| TEST_IMPL(ipc_tcp_connection) { |
| int r = run_ipc_test("ipc_helper_tcp_connection", on_read_connection); |
| ASSERT(read2_cb_called == 1); |
| ASSERT(tcp_write_cb_called == 1); |
| ASSERT(tcp_read_cb_called == 1); |
| ASSERT(exit_cb_called == 1); |
| return r; |
| } |
| |
| |
| #ifdef _WIN32 |
| TEST_IMPL(listen_with_simultaneous_accepts) { |
| uv_tcp_t server; |
| int r; |
| struct sockaddr_in addr = uv_ip4_addr("0.0.0.0", TEST_PORT); |
| |
| r = uv_tcp_init(uv_default_loop(), &server); |
| ASSERT(r == 0); |
| |
| r = uv_tcp_bind(&server, addr); |
| ASSERT(r == 0); |
| |
| r = uv_tcp_simultaneous_accepts(&server, 1); |
| ASSERT(r == 0); |
| |
| r = uv_listen((uv_stream_t*)&server, SOMAXCONN, NULL); |
| ASSERT(r == 0); |
| ASSERT(server.reqs_pending == 32); |
| |
| MAKE_VALGRIND_HAPPY(); |
| return 0; |
| } |
| |
| |
| TEST_IMPL(listen_no_simultaneous_accepts) { |
| uv_tcp_t server; |
| int r; |
| struct sockaddr_in addr = uv_ip4_addr("0.0.0.0", TEST_PORT); |
| |
| r = uv_tcp_init(uv_default_loop(), &server); |
| ASSERT(r == 0); |
| |
| r = uv_tcp_bind(&server, addr); |
| ASSERT(r == 0); |
| |
| r = uv_tcp_simultaneous_accepts(&server, 0); |
| ASSERT(r == 0); |
| |
| r = uv_listen((uv_stream_t*)&server, SOMAXCONN, NULL); |
| ASSERT(r == 0); |
| ASSERT(server.reqs_pending == 1); |
| |
| MAKE_VALGRIND_HAPPY(); |
| return 0; |
| } |
| #endif |
| |
| |
| /* Everything here runs in a child process. */ |
| |
| static tcp_conn conn; |
| |
| |
| static void close_cb(uv_handle_t* handle) { |
| close_cb_called++; |
| } |
| |
| |
| static void conn_notify_write_cb(uv_write_t* req, int status) { |
| uv_close((uv_handle_t*)&tcp_server, close_cb); |
| uv_close((uv_handle_t*)&channel, close_cb); |
| } |
| |
| |
| static void tcp_connection_write_cb(uv_write_t* req, int status) { |
| ASSERT((uv_handle_t*)&conn.conn == (uv_handle_t*)req->handle); |
| uv_close((uv_handle_t*)req->handle, close_cb); |
| uv_close((uv_handle_t*)&channel, close_cb); |
| uv_close((uv_handle_t*)&tcp_server, close_cb); |
| tcp_conn_write_cb_called++; |
| } |
| |
| |
| static void on_tcp_child_process_read(uv_stream_t* tcp, ssize_t nread, uv_buf_t buf) { |
| uv_buf_t outbuf; |
| int r; |
| |
| if (nread < 0) { |
| if (uv_last_error(tcp->loop).code == UV_EOF) { |
| free(buf.base); |
| return; |
| } |
| |
| printf("error recving on tcp connection: %s\n", |
| uv_strerror(uv_last_error(tcp->loop))); |
| abort(); |
| } |
| |
| ASSERT(nread > 0); |
| ASSERT(memcmp("world\n", buf.base, nread) == 0); |
| on_pipe_read_called++; |
| free(buf.base); |
| |
| /* Write to the socket */ |
| outbuf = uv_buf_init("hello again\n", 12); |
| r = uv_write(&conn.tcp_write_req, tcp, &outbuf, 1, tcp_connection_write_cb); |
| ASSERT(r == 0); |
| |
| tcp_conn_read_cb_called++; |
| } |
| |
| |
| static void connect_child_process_cb(uv_connect_t* req, int status) { |
| int r; |
| |
| ASSERT(status == 0); |
| r = uv_read_start(req->handle, on_read_alloc, on_tcp_child_process_read); |
| ASSERT(r == 0); |
| } |
| |
| |
| static void ipc_on_connection(uv_stream_t* server, int status) { |
| int r; |
| uv_buf_t buf; |
| |
| if (!connection_accepted) { |
| /* |
| * Accept the connection and close it. Also let the other |
| * side know. |
| */ |
| ASSERT(status == 0); |
| ASSERT((uv_stream_t*)&tcp_server == server); |
| |
| r = uv_tcp_init(server->loop, &conn.conn); |
| ASSERT(r == 0); |
| |
| r = uv_accept(server, (uv_stream_t*)&conn.conn); |
| ASSERT(r == 0); |
| |
| uv_close((uv_handle_t*)&conn.conn, close_cb); |
| |
| buf = uv_buf_init("accepted_connection\n", 20); |
| r = uv_write2(&conn_notify_req, (uv_stream_t*)&channel, &buf, 1, |
| NULL, conn_notify_write_cb); |
| ASSERT(r == 0); |
| |
| connection_accepted = 1; |
| } |
| } |
| |
| |
| static void ipc_on_connection_tcp_conn(uv_stream_t* server, int status) { |
| int r; |
| uv_buf_t buf; |
| uv_tcp_t* conn; |
| |
| ASSERT(status == 0); |
| ASSERT((uv_stream_t*)&tcp_server == server); |
| |
| conn = malloc(sizeof(*conn)); |
| ASSERT(conn); |
| |
| r = uv_tcp_init(server->loop, conn); |
| ASSERT(r == 0); |
| |
| r = uv_accept(server, (uv_stream_t*)conn); |
| ASSERT(r == 0); |
| |
| /* Send the accepted connection to the other process */ |
| buf = uv_buf_init("hello\n", 6); |
| r = uv_write2(&conn_notify_req, (uv_stream_t*)&channel, &buf, 1, |
| (uv_stream_t*)conn, NULL); |
| ASSERT(r == 0); |
| |
| r = uv_read_start((uv_stream_t*)conn, on_read_alloc, on_tcp_child_process_read); |
| ASSERT(r == 0); |
| |
| uv_close((uv_handle_t*)conn, close_cb); |
| } |
| |
| |
| int ipc_helper(int listen_after_write) { |
| /* |
| * This is launched from test-ipc.c. stdin is a duplex channel that we |
| * over which a handle will be transmitted. |
| */ |
| |
| uv_write_t write_req; |
| int r; |
| uv_buf_t buf; |
| |
| r = uv_pipe_init(uv_default_loop(), &channel, 1); |
| ASSERT(r == 0); |
| |
| uv_pipe_open(&channel, 0); |
| |
| ASSERT(uv_is_readable((uv_stream_t*) &channel)); |
| ASSERT(uv_is_writable((uv_stream_t*) &channel)); |
| ASSERT(!uv_is_closing((uv_handle_t*) &channel)); |
| |
| r = uv_tcp_init(uv_default_loop(), &tcp_server); |
| ASSERT(r == 0); |
| |
| r = uv_tcp_bind(&tcp_server, uv_ip4_addr("0.0.0.0", TEST_PORT)); |
| ASSERT(r == 0); |
| |
| if (!listen_after_write) { |
| r = uv_listen((uv_stream_t*)&tcp_server, 12, ipc_on_connection); |
| ASSERT(r == 0); |
| } |
| |
| buf = uv_buf_init("hello\n", 6); |
| r = uv_write2(&write_req, (uv_stream_t*)&channel, &buf, 1, |
| (uv_stream_t*)&tcp_server, NULL); |
| ASSERT(r == 0); |
| |
| if (listen_after_write) { |
| r = uv_listen((uv_stream_t*)&tcp_server, 12, ipc_on_connection); |
| ASSERT(r == 0); |
| } |
| |
| r = uv_run(uv_default_loop(), UV_RUN_DEFAULT); |
| ASSERT(r == 0); |
| |
| ASSERT(connection_accepted == 1); |
| ASSERT(close_cb_called == 3); |
| |
| MAKE_VALGRIND_HAPPY(); |
| return 0; |
| } |
| |
| |
| int ipc_helper_tcp_connection(void) { |
| /* |
| * This is launched from test-ipc.c. stdin is a duplex channel that we |
| * over which a handle will be transmitted. |
| */ |
| |
| int r; |
| struct sockaddr_in addr; |
| |
| r = uv_pipe_init(uv_default_loop(), &channel, 1); |
| ASSERT(r == 0); |
| |
| uv_pipe_open(&channel, 0); |
| |
| ASSERT(uv_is_readable((uv_stream_t*)&channel)); |
| ASSERT(uv_is_writable((uv_stream_t*)&channel)); |
| ASSERT(!uv_is_closing((uv_handle_t*)&channel)); |
| |
| r = uv_tcp_init(uv_default_loop(), &tcp_server); |
| ASSERT(r == 0); |
| |
| r = uv_tcp_bind(&tcp_server, uv_ip4_addr("0.0.0.0", TEST_PORT)); |
| ASSERT(r == 0); |
| |
| r = uv_listen((uv_stream_t*)&tcp_server, 12, ipc_on_connection_tcp_conn); |
| ASSERT(r == 0); |
| |
| /* Make a connection to the server */ |
| r = uv_tcp_init(uv_default_loop(), &conn.conn); |
| ASSERT(r == 0); |
| |
| addr = uv_ip4_addr("127.0.0.1", TEST_PORT); |
| r = uv_tcp_connect(&conn.conn_req, (uv_tcp_t*)&conn.conn, addr, connect_child_process_cb); |
| ASSERT(r == 0); |
| |
| r = uv_run(uv_default_loop(), UV_RUN_DEFAULT); |
| ASSERT(r == 0); |
| |
| ASSERT(tcp_conn_read_cb_called == 1); |
| ASSERT(tcp_conn_write_cb_called == 1); |
| ASSERT(close_cb_called == 4); |
| |
| MAKE_VALGRIND_HAPPY(); |
| return 0; |
| } |