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382 lines
8.2 KiB
382 lines
8.2 KiB
/* Copyright Joyent, Inc. and other Node contributors. All rights reserved. |
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* |
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* Permission is hereby granted, free of charge, to any person obtaining a copy |
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* of this software and associated documentation files (the "Software"), to |
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* deal in the Software without restriction, including without limitation the |
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* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or |
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* sell copies of the Software, and to permit persons to whom the Software is |
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* furnished to do so, subject to the following conditions: |
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* |
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* The above copyright notice and this permission notice shall be included in |
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* all copies or substantial portions of the Software. |
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* |
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS |
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* IN THE SOFTWARE. |
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*/ |
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#include "uv.h" |
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#include "task.h" |
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#include <stdio.h> |
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#include <stdlib.h> |
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typedef struct { |
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uv_write_t req; |
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uv_buf_t buf; |
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} write_req_t; |
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static uv_loop_t* loop; |
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static int server_closed; |
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static stream_type serverType; |
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static uv_tcp_t tcpServer; |
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static uv_udp_t udpServer; |
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static uv_pipe_t pipeServer; |
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static uv_handle_t* server; |
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static void after_write(uv_write_t* req, int status); |
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static void after_read(uv_stream_t*, ssize_t nread, const uv_buf_t* buf); |
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static void on_close(uv_handle_t* peer); |
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static void on_server_close(uv_handle_t* handle); |
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static void on_connection(uv_stream_t*, int status); |
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static void after_write(uv_write_t* req, int status) { |
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write_req_t* wr; |
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/* Free the read/write buffer and the request */ |
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wr = (write_req_t*) req; |
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free(wr->buf.base); |
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free(wr); |
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if (status == 0) |
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return; |
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fprintf(stderr, |
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"uv_write error: %s - %s\n", |
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uv_err_name(status), |
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uv_strerror(status)); |
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} |
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static void after_shutdown(uv_shutdown_t* req, int status) { |
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uv_close((uv_handle_t*) req->handle, on_close); |
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free(req); |
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} |
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static void after_read(uv_stream_t* handle, |
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ssize_t nread, |
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const uv_buf_t* buf) { |
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int i; |
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write_req_t *wr; |
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uv_shutdown_t* sreq; |
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if (nread < 0) { |
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/* Error or EOF */ |
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ASSERT(nread == UV_EOF); |
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free(buf->base); |
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sreq = malloc(sizeof* sreq); |
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ASSERT(0 == uv_shutdown(sreq, handle, after_shutdown)); |
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return; |
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} |
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if (nread == 0) { |
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/* Everything OK, but nothing read. */ |
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free(buf->base); |
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return; |
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} |
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/* |
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* Scan for the letter Q which signals that we should quit the server. |
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* If we get QS it means close the stream. |
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*/ |
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if (!server_closed) { |
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for (i = 0; i < nread; i++) { |
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if (buf->base[i] == 'Q') { |
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if (i + 1 < nread && buf->base[i + 1] == 'S') { |
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free(buf->base); |
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uv_close((uv_handle_t*)handle, on_close); |
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return; |
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} else { |
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uv_close(server, on_server_close); |
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server_closed = 1; |
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} |
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} |
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} |
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} |
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wr = (write_req_t*) malloc(sizeof *wr); |
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ASSERT(wr != NULL); |
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wr->buf = uv_buf_init(buf->base, nread); |
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if (uv_write(&wr->req, handle, &wr->buf, 1, after_write)) { |
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FATAL("uv_write failed"); |
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} |
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} |
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static void on_close(uv_handle_t* peer) { |
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free(peer); |
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} |
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static void echo_alloc(uv_handle_t* handle, |
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size_t suggested_size, |
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uv_buf_t* buf) { |
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buf->base = malloc(suggested_size); |
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buf->len = suggested_size; |
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} |
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static void on_connection(uv_stream_t* server, int status) { |
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uv_stream_t* stream; |
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int r; |
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if (status != 0) { |
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fprintf(stderr, "Connect error %s\n", uv_err_name(status)); |
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} |
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ASSERT(status == 0); |
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switch (serverType) { |
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case TCP: |
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stream = malloc(sizeof(uv_tcp_t)); |
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ASSERT(stream != NULL); |
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r = uv_tcp_init(loop, (uv_tcp_t*)stream); |
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ASSERT(r == 0); |
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break; |
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case PIPE: |
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stream = malloc(sizeof(uv_pipe_t)); |
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ASSERT(stream != NULL); |
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r = uv_pipe_init(loop, (uv_pipe_t*)stream, 0); |
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ASSERT(r == 0); |
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break; |
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default: |
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ASSERT(0 && "Bad serverType"); |
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abort(); |
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} |
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/* associate server with stream */ |
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stream->data = server; |
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r = uv_accept(server, stream); |
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ASSERT(r == 0); |
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r = uv_read_start(stream, echo_alloc, after_read); |
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ASSERT(r == 0); |
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} |
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static void on_server_close(uv_handle_t* handle) { |
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ASSERT(handle == server); |
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} |
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static void on_send(uv_udp_send_t* req, int status); |
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static void on_recv(uv_udp_t* handle, |
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ssize_t nread, |
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const uv_buf_t* rcvbuf, |
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const struct sockaddr* addr, |
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unsigned flags) { |
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uv_udp_send_t* req; |
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uv_buf_t sndbuf; |
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ASSERT(nread > 0); |
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ASSERT(addr->sa_family == AF_INET); |
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req = malloc(sizeof(*req)); |
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ASSERT(req != NULL); |
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sndbuf = *rcvbuf; |
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ASSERT(0 == uv_udp_send(req, handle, &sndbuf, 1, addr, on_send)); |
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} |
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static void on_send(uv_udp_send_t* req, int status) { |
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ASSERT(status == 0); |
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free(req); |
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} |
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static int tcp4_echo_start(int port) { |
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struct sockaddr_in addr; |
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int r; |
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ASSERT(0 == uv_ip4_addr("0.0.0.0", port, &addr)); |
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server = (uv_handle_t*)&tcpServer; |
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serverType = TCP; |
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r = uv_tcp_init(loop, &tcpServer); |
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if (r) { |
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/* TODO: Error codes */ |
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fprintf(stderr, "Socket creation error\n"); |
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return 1; |
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} |
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r = uv_tcp_bind(&tcpServer, (const struct sockaddr*) &addr, 0); |
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if (r) { |
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/* TODO: Error codes */ |
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fprintf(stderr, "Bind error\n"); |
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return 1; |
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} |
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r = uv_listen((uv_stream_t*)&tcpServer, SOMAXCONN, on_connection); |
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if (r) { |
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/* TODO: Error codes */ |
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fprintf(stderr, "Listen error %s\n", uv_err_name(r)); |
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return 1; |
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} |
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return 0; |
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} |
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static int tcp6_echo_start(int port) { |
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struct sockaddr_in6 addr6; |
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int r; |
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ASSERT(0 == uv_ip6_addr("::1", port, &addr6)); |
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server = (uv_handle_t*)&tcpServer; |
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serverType = TCP; |
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r = uv_tcp_init(loop, &tcpServer); |
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if (r) { |
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/* TODO: Error codes */ |
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fprintf(stderr, "Socket creation error\n"); |
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return 1; |
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} |
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/* IPv6 is optional as not all platforms support it */ |
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r = uv_tcp_bind(&tcpServer, (const struct sockaddr*) &addr6, 0); |
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if (r) { |
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/* show message but return OK */ |
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fprintf(stderr, "IPv6 not supported\n"); |
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return 0; |
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} |
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r = uv_listen((uv_stream_t*)&tcpServer, SOMAXCONN, on_connection); |
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if (r) { |
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/* TODO: Error codes */ |
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fprintf(stderr, "Listen error\n"); |
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return 1; |
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} |
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return 0; |
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} |
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static int udp4_echo_start(int port) { |
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int r; |
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server = (uv_handle_t*)&udpServer; |
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serverType = UDP; |
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r = uv_udp_init(loop, &udpServer); |
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if (r) { |
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fprintf(stderr, "uv_udp_init: %s\n", uv_strerror(r)); |
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return 1; |
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} |
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r = uv_udp_recv_start(&udpServer, echo_alloc, on_recv); |
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if (r) { |
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fprintf(stderr, "uv_udp_recv_start: %s\n", uv_strerror(r)); |
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return 1; |
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} |
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return 0; |
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} |
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static int pipe_echo_start(char* pipeName) { |
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int r; |
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#ifndef _WIN32 |
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{ |
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uv_fs_t req; |
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uv_fs_unlink(NULL, &req, pipeName, NULL); |
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uv_fs_req_cleanup(&req); |
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} |
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#endif |
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server = (uv_handle_t*)&pipeServer; |
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serverType = PIPE; |
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r = uv_pipe_init(loop, &pipeServer, 0); |
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if (r) { |
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fprintf(stderr, "uv_pipe_init: %s\n", uv_strerror(r)); |
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return 1; |
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} |
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r = uv_pipe_bind(&pipeServer, pipeName); |
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if (r) { |
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fprintf(stderr, "uv_pipe_bind: %s\n", uv_strerror(r)); |
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return 1; |
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} |
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r = uv_listen((uv_stream_t*)&pipeServer, SOMAXCONN, on_connection); |
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if (r) { |
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fprintf(stderr, "uv_pipe_listen: %s\n", uv_strerror(r)); |
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return 1; |
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} |
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return 0; |
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} |
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HELPER_IMPL(tcp4_echo_server) { |
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loop = uv_default_loop(); |
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if (tcp4_echo_start(TEST_PORT)) |
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return 1; |
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notify_parent_process(); |
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uv_run(loop, UV_RUN_DEFAULT); |
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return 0; |
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} |
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HELPER_IMPL(tcp6_echo_server) { |
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loop = uv_default_loop(); |
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if (tcp6_echo_start(TEST_PORT)) |
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return 1; |
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notify_parent_process(); |
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uv_run(loop, UV_RUN_DEFAULT); |
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return 0; |
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} |
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HELPER_IMPL(pipe_echo_server) { |
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loop = uv_default_loop(); |
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if (pipe_echo_start(TEST_PIPENAME)) |
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return 1; |
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notify_parent_process(); |
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uv_run(loop, UV_RUN_DEFAULT); |
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return 0; |
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} |
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HELPER_IMPL(udp4_echo_server) { |
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loop = uv_default_loop(); |
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if (udp4_echo_start(TEST_PORT)) |
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return 1; |
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notify_parent_process(); |
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uv_run(loop, UV_RUN_DEFAULT); |
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return 0; |
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}
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