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/*
*
* Copyright 2014, Google Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
#include "src/core/endpoint/tcp_client.h"
#include <errno.h>
#include <netinet/in.h>
#include <string.h>
#include <sys/socket.h>
#include <unistd.h>
#include "src/core/eventmanager/em.h"
#include <grpc/support/log.h>
#include <grpc/support/time.h>
static grpc_em em;
static gpr_timespec test_deadline() {
return gpr_time_add(gpr_now(), gpr_time_from_micros(1000000));
}
static void must_succeed(void *arg, grpc_endpoint *tcp) {
GPR_ASSERT(tcp);
grpc_endpoint_shutdown(tcp);
grpc_endpoint_destroy(tcp);
gpr_event_set(arg, (void *)1);
}
static void must_fail(void *arg, grpc_endpoint *tcp) {
GPR_ASSERT(!tcp);
gpr_event_set(arg, (void *)1);
}
void test_succeeds() {
struct sockaddr_in addr;
socklen_t addr_len = sizeof(addr);
int svr_fd;
int r;
gpr_event ev;
gpr_event_init(&ev);
memset(&addr, 0, sizeof(addr));
addr.sin_family = AF_INET;
/* create a dummy server */
svr_fd = socket(AF_INET, SOCK_STREAM, 0);
GPR_ASSERT(svr_fd >= 0);
GPR_ASSERT(0 == bind(svr_fd, (struct sockaddr *)&addr, addr_len));
GPR_ASSERT(0 == listen(svr_fd, 1));
/* connect to it */
GPR_ASSERT(getsockname(svr_fd, (struct sockaddr *)&addr, &addr_len) == 0);
grpc_tcp_client_connect(must_succeed, &ev, &em, (struct sockaddr *)&addr,
addr_len, gpr_inf_future);
/* await the connection */
do {
addr_len = sizeof(addr);
r = accept(svr_fd, (struct sockaddr *)&addr, &addr_len);
} while (r == -1 && errno == EINTR);
GPR_ASSERT(r >= 0);
close(r);
/* wait for the connection callback to finish */
GPR_ASSERT(gpr_event_wait(&ev, test_deadline()));
}
void test_fails() {
struct sockaddr_in addr;
socklen_t addr_len = sizeof(addr);
gpr_event ev;
gpr_event_init(&ev);
memset(&addr, 0, sizeof(addr));
addr.sin_family = AF_INET;
/* connect to a broken address */
grpc_tcp_client_connect(must_fail, &ev, &em, (struct sockaddr *)&addr,
addr_len, gpr_inf_future);
/* wait for the connection callback to finish */
GPR_ASSERT(gpr_event_wait(&ev, test_deadline()));
}
void test_times_out() {
struct sockaddr_in addr;
socklen_t addr_len = sizeof(addr);
int svr_fd;
#define NUM_CLIENT_CONNECTS 10
int client_fd[NUM_CLIENT_CONNECTS];
int i;
int r;
gpr_event ev;
gpr_timespec connect_deadline;
gpr_event_init(&ev);
memset(&addr, 0, sizeof(addr));
addr.sin_family = AF_INET;
/* create a dummy server */
svr_fd = socket(AF_INET, SOCK_STREAM, 0);
GPR_ASSERT(svr_fd >= 0);
GPR_ASSERT(0 == bind(svr_fd, (struct sockaddr *)&addr, addr_len));
GPR_ASSERT(0 == listen(svr_fd, 1));
/* Get its address */
GPR_ASSERT(getsockname(svr_fd, (struct sockaddr *)&addr, &addr_len) == 0);
/* tie up the listen buffer, which is somewhat arbitrarily sized. */
for (i = 0; i < NUM_CLIENT_CONNECTS; ++i) {
client_fd[i] = socket(AF_INET, SOCK_STREAM | SOCK_NONBLOCK, 0);
do {
r = connect(client_fd[i], (struct sockaddr *)&addr, addr_len);
} while (r == -1 && errno == EINTR);
GPR_ASSERT(r < 0);
GPR_ASSERT(errno == EWOULDBLOCK || errno == EINPROGRESS);
}
/* connect to dummy server address */
connect_deadline = gpr_time_add(gpr_now(), gpr_time_from_micros(1000000));
grpc_tcp_client_connect(must_fail, &ev, &em, (struct sockaddr *)&addr,
addr_len, connect_deadline);
/* Make sure the event doesn't trigger early */
GPR_ASSERT(!gpr_event_wait(
&ev, gpr_time_add(gpr_now(), gpr_time_from_micros(500000))));
/* Now wait until it should have triggered */
sleep(1);
/* wait for the connection callback to finish */
GPR_ASSERT(gpr_event_wait(&ev, test_deadline()));
close(svr_fd);
for (i = 0; i < NUM_CLIENT_CONNECTS; ++i) {
close(client_fd[i]);
}
}
int main(void) {
grpc_em_init(&em);
test_succeeds();
test_fails();
test_times_out();
return 0;
}
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