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/* 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 "task.h"
#include "uv.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#define EXPECTED "RANG TANG DING DONG I AM THE JAPANESE SANDMAN" /* "Take eight!" */
#define TEST_DURATION 5000 /* ms */
#define MAX_SENDERS 1000
#define MAX_RECEIVERS 1000
#define BASE_PORT 12345
#define ARRAY_SIZE(a) (sizeof((a)) / sizeof((a)[0]))
static uv_loop_t* loop;
static int n_senders_;
static int n_receivers_;
static uv_udp_t senders[MAX_SENDERS];
static uv_udp_t receivers[MAX_RECEIVERS];
static uv_buf_t bufs[5];
static int send_cb_called;
static int recv_cb_called;
static int close_cb_called;
static int stopping = 0;
typedef struct {
struct sockaddr_in addr;
} sender_state_t;
static uv_buf_t alloc_cb(uv_handle_t* handle, size_t suggested_size) {
static char slab[65536];
ASSERT(suggested_size <= sizeof slab);
return uv_buf_init(slab, sizeof slab);
}
static void send_cb(uv_udp_send_t* req, int status) {
sender_state_t* ss;
int r;
if (stopping) {
return;
}
ASSERT(req != NULL);
ASSERT(status == 0);
ss = req->data;
r = uv_udp_send(req, req->handle, bufs, ARRAY_SIZE(bufs), ss->addr, send_cb);
ASSERT(r == 0);
req->data = ss;
send_cb_called++;
}
static void recv_cb(uv_udp_t* handle,
ssize_t nread,
uv_buf_t buf,
struct sockaddr* addr,
unsigned flags) {
if (nread == 0)
return;
if (nread == -1) {
ASSERT(uv_last_error(loop).code == UV_EINTR); /* FIXME change error code */
return;
}
ASSERT(addr->sa_family == AF_INET);
ASSERT(!memcmp(buf.base, EXPECTED, nread));
recv_cb_called++;
}
static void close_cb(uv_handle_t* handle) {
ASSERT(handle != NULL);
close_cb_called++;
}
static void timeout_cb(uv_timer_t* timer, int status) {
int i;
stopping = 1;
for (i = 0; i < n_senders_; i++)
uv_close((uv_handle_t*)&senders[i], close_cb);
for (i = 0; i < n_receivers_; i++)
uv_close((uv_handle_t*)&receivers[i], close_cb);
}
static int do_packet_storm(int n_senders, int n_receivers) {
uv_timer_t timeout;
sender_state_t *ss;
uv_udp_send_t* req;
uv_udp_t* handle;
int i;
int r;
ASSERT(n_senders <= MAX_SENDERS);
ASSERT(n_receivers <= MAX_RECEIVERS);
loop = uv_default_loop();
n_senders_ = n_senders;
n_receivers_ = n_receivers;
r = uv_timer_init(loop, &timeout);
ASSERT(r == 0);
r = uv_timer_start(&timeout, timeout_cb, TEST_DURATION, 0);
ASSERT(r == 0);
/* Timer should not keep loop alive. */
uv_unref(loop);
for (i = 0; i < n_receivers; i++) {
struct sockaddr_in addr;
handle = &receivers[i];
r = uv_udp_init(loop, handle);
ASSERT(r == 0);
addr = uv_ip4_addr("0.0.0.0", BASE_PORT + i);
r = uv_udp_bind(handle, addr, 0);
ASSERT(r == 0);
r = uv_udp_recv_start(handle, alloc_cb, recv_cb);
ASSERT(r == 0);
}
bufs[0] = uv_buf_init(EXPECTED + 0, 10);
bufs[1] = uv_buf_init(EXPECTED + 10, 10);
bufs[2] = uv_buf_init(EXPECTED + 20, 10);
bufs[3] = uv_buf_init(EXPECTED + 30, 10);
bufs[4] = uv_buf_init(EXPECTED + 40, 5);
for (i = 0; i < n_senders; i++) {
handle = &senders[i];
r = uv_udp_init(loop, handle);
ASSERT(r == 0);
req = malloc(sizeof(*req) + sizeof(*ss));
ss = (void*)(req + 1);
ss->addr = uv_ip4_addr("127.0.0.1", BASE_PORT + (i % n_receivers));
r = uv_udp_send(req, handle, bufs, ARRAY_SIZE(bufs), ss->addr, send_cb);
ASSERT(r == 0);
req->data = ss;
}
uv_run(loop);
printf("udp_packet_storm_%dv%d: %.0f/s received, %.0f/s sent\n",
n_receivers,
n_senders,
recv_cb_called / (TEST_DURATION / 1000.0),
send_cb_called / (TEST_DURATION / 1000.0));
return 0;
}
BENCHMARK_IMPL(udp_packet_storm_1v1) {
return do_packet_storm(1, 1);
}
BENCHMARK_IMPL(udp_packet_storm_1v10) {
return do_packet_storm(1, 10);
}
BENCHMARK_IMPL(udp_packet_storm_1v100) {
return do_packet_storm(1, 100);
}
BENCHMARK_IMPL(udp_packet_storm_1v1000) {
return do_packet_storm(1, 1000);
}
BENCHMARK_IMPL(udp_packet_storm_10v10) {
return do_packet_storm(10, 10);
}
BENCHMARK_IMPL(udp_packet_storm_10v100) {
return do_packet_storm(10, 100);
}
BENCHMARK_IMPL(udp_packet_storm_10v1000) {
return do_packet_storm(10, 1000);
}
BENCHMARK_IMPL(udp_packet_storm_100v100) {
return do_packet_storm(100, 100);
}
BENCHMARK_IMPL(udp_packet_storm_100v1000) {
return do_packet_storm(100, 1000);
}
BENCHMARK_IMPL(udp_packet_storm_1000v1000) {
return do_packet_storm(1000, 1000);
}
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