mirror of
https://github.com/urbit/shrub.git
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221 lines
5.1 KiB
C
221 lines
5.1 KiB
C
/* 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 <stdlib.h>
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#include <stdio.h>
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/* Run the benchmark for this many ms */
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#define TIME 5000
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typedef struct {
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int pongs;
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int state;
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uv_tcp_t tcp;
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uv_connect_t connect_req;
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uv_shutdown_t shutdown_req;
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} pinger_t;
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typedef struct buf_s {
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uv_buf_t uv_buf_t;
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struct buf_s* next;
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} buf_t;
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static char PING[] = "PING\n";
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static uv_loop_t* loop;
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static buf_t* buf_freelist = NULL;
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static int pinger_shutdown_cb_called;
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static int completed_pingers = 0;
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static int64_t start_time;
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static void buf_alloc(uv_handle_t* tcp, size_t size, uv_buf_t* buf) {
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buf_t* ab;
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ab = buf_freelist;
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if (ab != NULL)
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buf_freelist = ab->next;
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else {
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ab = malloc(size + sizeof(*ab));
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ab->uv_buf_t.len = size;
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ab->uv_buf_t.base = (char*) (ab + 1);
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}
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*buf = ab->uv_buf_t;
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}
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static void buf_free(const uv_buf_t* buf) {
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buf_t* ab = (buf_t*) buf->base - 1;
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ab->next = buf_freelist;
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buf_freelist = ab;
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}
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static void pinger_close_cb(uv_handle_t* handle) {
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pinger_t* pinger;
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pinger = (pinger_t*)handle->data;
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LOGF("ping_pongs: %d roundtrips/s\n", (1000 * pinger->pongs) / TIME);
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free(pinger);
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completed_pingers++;
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}
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static void pinger_write_cb(uv_write_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 void pinger_write_ping(pinger_t* pinger) {
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uv_write_t* req;
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uv_buf_t buf;
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buf = uv_buf_init(PING, sizeof(PING) - 1);
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req = malloc(sizeof *req);
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if (uv_write(req, (uv_stream_t*) &pinger->tcp, &buf, 1, pinger_write_cb)) {
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FATAL("uv_write failed");
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}
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}
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static void pinger_shutdown_cb(uv_shutdown_t* req, int status) {
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ASSERT(status == 0);
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pinger_shutdown_cb_called++;
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/*
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* The close callback has not been triggered yet. We must wait for EOF
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* until we close the connection.
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*/
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ASSERT(completed_pingers == 0);
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}
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static void pinger_read_cb(uv_stream_t* tcp,
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ssize_t nread,
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const uv_buf_t* buf) {
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ssize_t i;
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pinger_t* pinger;
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pinger = (pinger_t*)tcp->data;
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if (nread < 0) {
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ASSERT(nread == UV_EOF);
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if (buf->base) {
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buf_free(buf);
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}
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ASSERT(pinger_shutdown_cb_called == 1);
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uv_close((uv_handle_t*)tcp, pinger_close_cb);
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return;
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}
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/* Now we count the pings */
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for (i = 0; i < nread; i++) {
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ASSERT(buf->base[i] == PING[pinger->state]);
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pinger->state = (pinger->state + 1) % (sizeof(PING) - 1);
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if (pinger->state == 0) {
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pinger->pongs++;
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if (uv_now(loop) - start_time > TIME) {
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uv_shutdown(&pinger->shutdown_req,
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(uv_stream_t*) tcp,
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pinger_shutdown_cb);
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break;
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} else {
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pinger_write_ping(pinger);
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}
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}
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}
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buf_free(buf);
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}
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static void pinger_connect_cb(uv_connect_t* req, int status) {
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pinger_t *pinger = (pinger_t*)req->handle->data;
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ASSERT(status == 0);
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pinger_write_ping(pinger);
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if (uv_read_start(req->handle, buf_alloc, pinger_read_cb)) {
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FATAL("uv_read_start failed");
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}
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}
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static void pinger_new(void) {
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struct sockaddr_in client_addr;
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struct sockaddr_in server_addr;
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pinger_t *pinger;
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int r;
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ASSERT(0 == uv_ip4_addr("0.0.0.0", 0, &client_addr));
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ASSERT(0 == uv_ip4_addr("127.0.0.1", TEST_PORT, &server_addr));
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pinger = malloc(sizeof(*pinger));
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pinger->state = 0;
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pinger->pongs = 0;
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/* Try to connect to the server and do NUM_PINGS ping-pongs. */
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r = uv_tcp_init(loop, &pinger->tcp);
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ASSERT(!r);
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pinger->tcp.data = pinger;
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ASSERT(0 == uv_tcp_bind(&pinger->tcp,
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(const struct sockaddr*) &client_addr,
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0));
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r = uv_tcp_connect(&pinger->connect_req,
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&pinger->tcp,
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(const struct sockaddr*) &server_addr,
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pinger_connect_cb);
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ASSERT(!r);
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}
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BENCHMARK_IMPL(ping_pongs) {
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loop = uv_default_loop();
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start_time = uv_now(loop);
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pinger_new();
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uv_run(loop, UV_RUN_DEFAULT);
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ASSERT(completed_pingers == 1);
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MAKE_VALGRIND_HAPPY();
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return 0;
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}
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