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/*
*
* Copyright 2016 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
#include <grpc/grpc.h>
#include <grpc/grpc_security.h>
#include <grpc/support/alloc.h>
#include <grpc/support/log.h>
#include "src/core/lib/channel/channel_args.h"
#include "src/core/lib/gpr/host_port.h"
#include "src/core/lib/gprpp/thd.h"
#include "src/core/lib/iomgr/exec_ctx.h"
#include "test/core/end2end/data/ssl_test_data.h"
#include "test/core/util/port.h"
#include "test/core/util/test_config.h"
typedef struct test_fixture {
const char* name;
grpc_channel* (*create_channel)(const char* addr);
} test_fixture;
static size_t next_tag = 1;
static void channel_idle_start_watch(grpc_channel* channel,
grpc_completion_queue* cq) {
gpr_timespec connect_deadline = grpc_timeout_milliseconds_to_deadline(1);
GPR_ASSERT(grpc_channel_check_connectivity_state(channel, 0) ==
GRPC_CHANNEL_IDLE);
grpc_channel_watch_connectivity_state(
channel, GRPC_CHANNEL_IDLE, connect_deadline, cq, (void*)(next_tag++));
gpr_log(GPR_DEBUG, "number of active connect watchers: %d",
grpc_channel_num_external_connectivity_watchers(channel));
}
static void channel_idle_poll_for_timeout(grpc_channel* channel,
grpc_completion_queue* cq) {
grpc_event ev = grpc_completion_queue_next(
cq, gpr_inf_future(GPR_CLOCK_REALTIME), nullptr);
/* expect watch_connectivity_state to end with a timeout */
GPR_ASSERT(ev.type == GRPC_OP_COMPLETE);
GPR_ASSERT(ev.success == false);
GPR_ASSERT(grpc_channel_check_connectivity_state(channel, 0) ==
GRPC_CHANNEL_IDLE);
}
/* Test and use the "num_external_watchers" call to make sure
* that "connectivity watcher" structs are free'd just after, if
* their corresponding timeouts occur. */
static void run_timeouts_test(const test_fixture* fixture) {
gpr_log(GPR_INFO, "TEST: %s", fixture->name);
char* addr;
grpc_init();
gpr_join_host_port(&addr, "localhost", grpc_pick_unused_port_or_die());
grpc_channel* channel = fixture->create_channel(addr);
grpc_completion_queue* cq = grpc_completion_queue_create_for_next(nullptr);
/* start 1 watcher and then let it time out */
channel_idle_start_watch(channel, cq);
channel_idle_poll_for_timeout(channel, cq);
GPR_ASSERT(grpc_channel_num_external_connectivity_watchers(channel) == 0);
/* start 3 watchers and then let them all time out */
for (size_t i = 1; i <= 3; i++) {
channel_idle_start_watch(channel, cq);
}
for (size_t i = 1; i <= 3; i++) {
channel_idle_poll_for_timeout(channel, cq);
}
GPR_ASSERT(grpc_channel_num_external_connectivity_watchers(channel) == 0);
/* start 3 watchers, see one time out, start another 3, and then see them all
* time out */
for (size_t i = 1; i <= 3; i++) {
channel_idle_start_watch(channel, cq);
}
channel_idle_poll_for_timeout(channel, cq);
for (size_t i = 3; i <= 5; i++) {
channel_idle_start_watch(channel, cq);
}
for (size_t i = 1; i <= 5; i++) {
channel_idle_poll_for_timeout(channel, cq);
}
GPR_ASSERT(grpc_channel_num_external_connectivity_watchers(channel) == 0);
grpc_channel_destroy(channel);
grpc_completion_queue_shutdown(cq);
GPR_ASSERT(grpc_completion_queue_next(cq, gpr_inf_future(GPR_CLOCK_REALTIME),
nullptr)
.type == GRPC_QUEUE_SHUTDOWN);
grpc_completion_queue_destroy(cq);
grpc_shutdown();
gpr_free(addr);
}
/* An edge scenario; sets channel state to explicitly, and outside
* of a polling call. */
static void run_channel_shutdown_before_timeout_test(
const test_fixture* fixture) {
gpr_log(GPR_INFO, "TEST: %s", fixture->name);
char* addr;
grpc_init();
gpr_join_host_port(&addr, "localhost", grpc_pick_unused_port_or_die());
grpc_channel* channel = fixture->create_channel(addr);
grpc_completion_queue* cq = grpc_completion_queue_create_for_next(nullptr);
/* start 1 watcher and then shut down the channel before the timer goes off */
GPR_ASSERT(grpc_channel_num_external_connectivity_watchers(channel) == 0);
/* expecting a 30 second timeout to go off much later than the shutdown. */
gpr_timespec connect_deadline = grpc_timeout_seconds_to_deadline(30);
GPR_ASSERT(grpc_channel_check_connectivity_state(channel, 0) ==
GRPC_CHANNEL_IDLE);
grpc_channel_watch_connectivity_state(channel, GRPC_CHANNEL_IDLE,
connect_deadline, cq, (void*)1);
grpc_channel_destroy(channel);
grpc_event ev = grpc_completion_queue_next(
cq, gpr_inf_future(GPR_CLOCK_REALTIME), nullptr);
GPR_ASSERT(ev.type == GRPC_OP_COMPLETE);
/* expect success with a state transition to CHANNEL_SHUTDOWN */
GPR_ASSERT(ev.success == true);
grpc_completion_queue_shutdown(cq);
GPR_ASSERT(grpc_completion_queue_next(cq, gpr_inf_future(GPR_CLOCK_REALTIME),
nullptr)
.type == GRPC_QUEUE_SHUTDOWN);
grpc_completion_queue_destroy(cq);
grpc_shutdown();
gpr_free(addr);
}
static grpc_channel* insecure_test_create_channel(const char* addr) {
return grpc_insecure_channel_create(addr, nullptr, nullptr);
}
static const test_fixture insecure_test = {
"insecure",
insecure_test_create_channel,
};
static grpc_channel* secure_test_create_channel(const char* addr) {
grpc_channel_credentials* ssl_creds =
grpc_ssl_credentials_create(test_root_cert, nullptr, nullptr, nullptr);
grpc_arg ssl_name_override = {
GRPC_ARG_STRING,
const_cast<char*>(GRPC_SSL_TARGET_NAME_OVERRIDE_ARG),
{const_cast<char*>("foo.test.google.fr")}};
grpc_channel_args* new_client_args =
grpc_channel_args_copy_and_add(nullptr, &ssl_name_override, 1);
grpc_channel* channel =
grpc_secure_channel_create(ssl_creds, addr, new_client_args, nullptr);
{
grpc_core::ExecCtx exec_ctx;
grpc_channel_args_destroy(new_client_args);
}
grpc_channel_credentials_release(ssl_creds);
return channel;
}
static const test_fixture secure_test = {
"secure",
secure_test_create_channel,
};
int main(int argc, char** argv) {
grpc::testing::TestEnvironment env(argc, argv);
run_timeouts_test(&insecure_test);
run_timeouts_test(&secure_test);
run_channel_shutdown_before_timeout_test(&insecure_test);
run_channel_shutdown_before_timeout_test(&secure_test);
}
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