/* 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 static int completed_pingers = 0; #define NUM_PINGS 1000 /* 64 bytes is enough for a pinger */ #define BUFSIZE 10240 static char PING[] = "PING\n"; static int pinger_on_connect_count; typedef struct { int pongs; int state; union { uv_tcp_t tcp; uv_pipe_t pipe; } stream; uv_connect_t connect_req; char read_buffer[BUFSIZE]; } pinger_t; static uv_buf_t alloc_cb(uv_handle_t* handle, size_t size) { return uv_buf_init(malloc(size), size); } static void pinger_on_close(uv_handle_t* handle) { pinger_t* pinger = (pinger_t*)handle->data; ASSERT(NUM_PINGS == pinger->pongs); free(pinger); completed_pingers++; } static void pinger_after_write(uv_write_t *req, int status) { ASSERT(status == 0); free(req); } static void pinger_write_ping(pinger_t* pinger) { uv_write_t *req; uv_buf_t buf; buf = uv_buf_init(PING, sizeof(PING) - 1); req = malloc(sizeof(*req)); if (uv_write(req, (uv_stream_t*)&pinger->stream.tcp, &buf, 1, pinger_after_write)) { FATAL("uv_write failed"); } puts("PING"); } static void pinger_read_cb(uv_stream_t* stream, ssize_t nread, uv_buf_t buf) { ssize_t i; pinger_t* pinger; pinger = (pinger_t*)stream->data; if (nread < 0) { ASSERT(uv_last_error(uv_default_loop()).code == UV_EOF); puts("got EOF"); free(buf.base); uv_close((uv_handle_t*)(&pinger->stream.tcp), pinger_on_close); return; } /* Now we count the pings */ for (i = 0; i < nread; i++) { ASSERT(buf.base[i] == PING[pinger->state]); pinger->state = (pinger->state + 1) % (sizeof(PING) - 1); if (pinger->state != 0) continue; printf("PONG %d\n", pinger->pongs); pinger->pongs++; if (pinger->pongs < NUM_PINGS) { pinger_write_ping(pinger); } else { uv_close((uv_handle_t*)(&pinger->stream.tcp), pinger_on_close); break; } } free(buf.base); } static void pinger_on_connect(uv_connect_t *req, int status) { pinger_t *pinger = (pinger_t*)req->handle->data; pinger_on_connect_count++; ASSERT(status == 0); ASSERT(uv_is_readable(req->handle)); ASSERT(uv_is_writable(req->handle)); ASSERT(!uv_is_closing((uv_handle_t *)req->handle)); pinger_write_ping(pinger); uv_read_start((uv_stream_t*)(req->handle), alloc_cb, pinger_read_cb); } /* same ping-pong test, but using IPv6 connection */ static void tcp_pinger_v6_new(void) { int r; struct sockaddr_in6 server_addr = uv_ip6_addr("::1", TEST_PORT); pinger_t *pinger; pinger = (pinger_t*)malloc(sizeof(*pinger)); pinger->state = 0; pinger->pongs = 0; /* Try to connect to the server and do NUM_PINGS ping-pongs. */ r = uv_tcp_init(uv_default_loop(), &pinger->stream.tcp); pinger->stream.tcp.data = pinger; ASSERT(!r); /* We are never doing multiple reads/connects at a time anyway. */ /* so these handles can be pre-initialized. */ r = uv_tcp_connect6(&pinger->connect_req, &pinger->stream.tcp, server_addr, pinger_on_connect); ASSERT(!r); /* Synchronous connect callbacks are not allowed. */ ASSERT(pinger_on_connect_count == 0); } static void tcp_pinger_new(void) { int r; struct sockaddr_in server_addr = uv_ip4_addr("127.0.0.1", TEST_PORT); pinger_t *pinger; pinger = (pinger_t*)malloc(sizeof(*pinger)); pinger->state = 0; pinger->pongs = 0; /* Try to connect to the server and do NUM_PINGS ping-pongs. */ r = uv_tcp_init(uv_default_loop(), &pinger->stream.tcp); pinger->stream.tcp.data = pinger; ASSERT(!r); /* We are never doing multiple reads/connects at a time anyway. */ /* so these handles can be pre-initialized. */ r = uv_tcp_connect(&pinger->connect_req, &pinger->stream.tcp, server_addr, pinger_on_connect); ASSERT(!r); /* Synchronous connect callbacks are not allowed. */ ASSERT(pinger_on_connect_count == 0); } static void pipe_pinger_new(void) { int r; pinger_t *pinger; pinger = (pinger_t*)malloc(sizeof(*pinger)); pinger->state = 0; pinger->pongs = 0; /* Try to connect to the server and do NUM_PINGS ping-pongs. */ r = uv_pipe_init(uv_default_loop(), &pinger->stream.pipe, 0); pinger->stream.pipe.data = pinger; ASSERT(!r); /* We are never doing multiple reads/connects at a time anyway. */ /* so these handles can be pre-initialized. */ uv_pipe_connect(&pinger->connect_req, &pinger->stream.pipe, TEST_PIPENAME, pinger_on_connect); /* Synchronous connect callbacks are not allowed. */ ASSERT(pinger_on_connect_count == 0); } TEST_IMPL(tcp_ping_pong) { tcp_pinger_new(); uv_run(uv_default_loop(), UV_RUN_DEFAULT); ASSERT(completed_pingers == 1); MAKE_VALGRIND_HAPPY(); return 0; } TEST_IMPL(tcp_ping_pong_v6) { tcp_pinger_v6_new(); uv_run(uv_default_loop(), UV_RUN_DEFAULT); ASSERT(completed_pingers == 1); MAKE_VALGRIND_HAPPY(); return 0; } TEST_IMPL(pipe_ping_pong) { pipe_pinger_new(); uv_run(uv_default_loop(), UV_RUN_DEFAULT); ASSERT(completed_pingers == 1); MAKE_VALGRIND_HAPPY(); return 0; }