| /* 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 <stdlib.h> |
| #include <stdio.h> |
| |
| /* Run the benchmark for this many ms */ |
| #define TIME 5000 |
| |
| |
| typedef struct { |
| int pongs; |
| int state; |
| uv_tcp_t tcp; |
| uv_connect_t connect_req; |
| uv_shutdown_t shutdown_req; |
| } pinger_t; |
| |
| typedef struct buf_s { |
| uv_buf_t uv_buf_t; |
| struct buf_s* next; |
| } buf_t; |
| |
| |
| static char PING[] = "PING\n"; |
| |
| static uv_loop_t* loop; |
| |
| static buf_t* buf_freelist = NULL; |
| static int pinger_shutdown_cb_called; |
| static int completed_pingers = 0; |
| static int64_t start_time; |
| |
| |
| static uv_buf_t buf_alloc(uv_handle_t* tcp, size_t size) { |
| buf_t* ab; |
| |
| ab = buf_freelist; |
| |
| if (ab != NULL) { |
| buf_freelist = ab->next; |
| return ab->uv_buf_t; |
| } |
| |
| ab = (buf_t*) malloc(size + sizeof *ab); |
| ab->uv_buf_t.len = size; |
| ab->uv_buf_t.base = ((char*) ab) + sizeof *ab; |
| |
| return ab->uv_buf_t; |
| } |
| |
| |
| static void buf_free(uv_buf_t uv_buf_t) { |
| buf_t* ab = (buf_t*) (uv_buf_t.base - sizeof *ab); |
| |
| ab->next = buf_freelist; |
| buf_freelist = ab; |
| } |
| |
| |
| static void pinger_close_cb(uv_handle_t* handle) { |
| pinger_t* pinger; |
| |
| pinger = (pinger_t*)handle->data; |
| LOGF("ping_pongs: %d roundtrips/s\n", (1000 * pinger->pongs) / TIME); |
| |
| free(pinger); |
| |
| completed_pingers++; |
| } |
| |
| |
| static void pinger_write_cb(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->tcp, &buf, 1, pinger_write_cb)) { |
| FATAL("uv_write failed"); |
| } |
| } |
| |
| |
| static void pinger_shutdown_cb(uv_shutdown_t* req, int status) { |
| ASSERT(status == 0); |
| pinger_shutdown_cb_called++; |
| |
| /* |
| * The close callback has not been triggered yet. We must wait for EOF |
| * until we close the connection. |
| */ |
| ASSERT(completed_pingers == 0); |
| } |
| |
| |
| static void pinger_read_cb(uv_stream_t* tcp, ssize_t nread, uv_buf_t buf) { |
| ssize_t i; |
| pinger_t* pinger; |
| |
| pinger = (pinger_t*)tcp->data; |
| |
| if (nread < 0) { |
| ASSERT(uv_last_error(loop).code == UV_EOF); |
| |
| if (buf.base) { |
| buf_free(buf); |
| } |
| |
| ASSERT(pinger_shutdown_cb_called == 1); |
| uv_close((uv_handle_t*)tcp, pinger_close_cb); |
| |
| 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) { |
| pinger->pongs++; |
| if (uv_now(loop) - start_time > TIME) { |
| uv_shutdown(&pinger->shutdown_req, (uv_stream_t*) tcp, pinger_shutdown_cb); |
| break; |
| } else { |
| pinger_write_ping(pinger); |
| } |
| } |
| } |
| |
| buf_free(buf); |
| } |
| |
| |
| static void pinger_connect_cb(uv_connect_t* req, int status) { |
| pinger_t *pinger = (pinger_t*)req->handle->data; |
| |
| ASSERT(status == 0); |
| |
| pinger_write_ping(pinger); |
| |
| if (uv_read_start(req->handle, buf_alloc, pinger_read_cb)) { |
| FATAL("uv_read_start failed"); |
| } |
| } |
| |
| |
| static void pinger_new(void) { |
| int r; |
| struct sockaddr_in client_addr = uv_ip4_addr("0.0.0.0", 0); |
| 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(loop, &pinger->tcp); |
| ASSERT(!r); |
| |
| pinger->tcp.data = pinger; |
| |
| uv_tcp_bind(&pinger->tcp, client_addr); |
| |
| r = uv_tcp_connect(&pinger->connect_req, &pinger->tcp, server_addr, pinger_connect_cb); |
| ASSERT(!r); |
| } |
| |
| |
| BENCHMARK_IMPL(ping_pongs) { |
| loop = uv_default_loop(); |
| |
| start_time = uv_now(loop); |
| |
| pinger_new(); |
| uv_run(loop, UV_RUN_DEFAULT); |
| |
| ASSERT(completed_pingers == 1); |
| |
| MAKE_VALGRIND_HAPPY(); |
| return 0; |
| } |