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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 "uv.h"
#include "task.h"
#include <stdlib.h>
#include <stdio.h>
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 void alloc_cb(uv_handle_t* handle, size_t size, uv_buf_t* buf) {
buf->base = malloc(size);
buf->len = 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,
const uv_buf_t* buf) {
ssize_t i;
pinger_t* pinger;
pinger = (pinger_t*)stream->data;
if (nread < 0) {
ASSERT(nread == 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(1 == uv_is_readable(req->handle));
ASSERT(1 == uv_is_writable(req->handle));
ASSERT(0 == 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;
pinger_t *pinger;
ASSERT(0 ==uv_ip6_addr("::1", TEST_PORT, &server_addr));
pinger = malloc(sizeof(*pinger));
ASSERT(pinger != NULL);
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,
(const struct sockaddr*) &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;
pinger_t *pinger;
ASSERT(0 == uv_ip4_addr("127.0.0.1", TEST_PORT, &server_addr));
pinger = malloc(sizeof(*pinger));
ASSERT(pinger != NULL);
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,
(const struct sockaddr*) &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));
ASSERT(pinger != NULL);
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;
}
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