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//
//
// Copyright 2015 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 "src/core/lib/surface/init.h"
#include <chrono>
#include <memory>
#include "absl/time/clock.h"
#include "absl/time/time.h"
#include "gtest/gtest.h"
#include <grpc/event_engine/event_engine.h>
#include <grpc/grpc.h>
#include "src/core/lib/event_engine/default_event_engine.h"
#include "src/core/lib/iomgr/exec_ctx.h"
#include "src/core/util/thd.h"
#include "test/core/test_util/test_config.h"
static void test(int rounds) {
int i;
for (i = 0; i < rounds; i++) {
grpc_init();
}
for (i = 0; i < rounds; i++) {
grpc_shutdown();
}
EXPECT_FALSE(grpc_is_initialized());
}
TEST(Init, test) {
test(1);
test(2);
test(3);
}
static void test_blocking(int rounds) {
int i;
for (i = 0; i < rounds; i++) {
grpc_init();
}
for (i = 0; i < rounds; i++) {
grpc_shutdown_blocking();
}
EXPECT_FALSE(grpc_is_initialized());
}
TEST(Init, blocking) {
test_blocking(1);
test_blocking(2);
test_blocking(3);
}
TEST(Init, ShutdownWithThread) {
grpc_init();
{
grpc_core::ApplicationCallbackExecCtx callback_exec_ctx(
GRPC_APP_CALLBACK_EXEC_CTX_FLAG_IS_INTERNAL_THREAD);
grpc_shutdown();
}
grpc_maybe_wait_for_async_shutdown();
EXPECT_FALSE(grpc_is_initialized());
}
TEST(Init, mixed) {
grpc_init();
grpc_init();
grpc_shutdown();
grpc_init();
grpc_shutdown();
grpc_shutdown();
EXPECT_FALSE(grpc_is_initialized());
}
TEST(Init, MixedWithThread) {
grpc_init();
{
grpc_core::ApplicationCallbackExecCtx callback_exec_ctx(
GRPC_APP_CALLBACK_EXEC_CTX_FLAG_IS_INTERNAL_THREAD);
grpc_init();
grpc_shutdown();
grpc_init();
grpc_shutdown();
grpc_shutdown();
}
grpc_maybe_wait_for_async_shutdown();
EXPECT_FALSE(grpc_is_initialized());
}
TEST(Init, Repeatedly) {
for (int i = 0; i < 10; i++) {
grpc_init();
{
grpc_core::ApplicationCallbackExecCtx callback_exec_ctx(
GRPC_APP_CALLBACK_EXEC_CTX_FLAG_IS_INTERNAL_THREAD);
grpc_shutdown();
}
}
grpc_maybe_wait_for_async_shutdown();
EXPECT_FALSE(grpc_is_initialized());
}
TEST(Init, WaitForShutdownBeforeInit) {
EXPECT_TRUE(grpc_wait_for_shutdown_with_timeout(absl::ZeroDuration()));
}
TEST(Init, WaitForShutdownAfterShutdown) {
grpc_init();
grpc_shutdown();
EXPECT_TRUE(grpc_wait_for_shutdown_with_timeout(absl::ZeroDuration()));
}
TEST(Init, WaitForShutdownWithTimeout) {
grpc_init();
grpc_init();
grpc_shutdown();
grpc_core::Thread t0(
"init_test",
[](void*) {
EXPECT_FALSE(grpc_wait_for_shutdown_with_timeout(absl::Seconds(0.5)));
},
nullptr);
grpc_core::Thread t1(
"init_test",
[](void*) {
EXPECT_TRUE(grpc_wait_for_shutdown_with_timeout(absl::Seconds(1.5)));
},
nullptr);
t0.Start();
t1.Start();
absl::SleepFor(absl::Seconds(1));
grpc_shutdown();
t0.Join();
t1.Join();
}
TEST(Init, RepeatedlyBlocking) {
for (int i = 0; i < 10; i++) {
grpc_init();
{
grpc_core::ApplicationCallbackExecCtx callback_exec_ctx(
GRPC_APP_CALLBACK_EXEC_CTX_FLAG_IS_INTERNAL_THREAD);
grpc_shutdown_blocking();
}
}
EXPECT_FALSE(grpc_is_initialized());
}
TEST(Init, TimerManagerHoldsLastInit) {
grpc_init();
// the temporary engine is deleted immediately, and the callback owns a copy.
auto engine = grpc_event_engine::experimental::GetDefaultEventEngine();
engine->RunAfter(
std::chrono::seconds(1),
[engine = grpc_event_engine::experimental::GetDefaultEventEngine()] {
grpc_core::ApplicationCallbackExecCtx app_exec_ctx;
grpc_core::ExecCtx exec_ctx;
grpc_shutdown();
});
while (engine.use_count() != 1) {
absl::SleepFor(absl::Microseconds(15));
}
}
int main(int argc, char** argv) {
grpc::testing::TestEnvironment env(&argc, argv);
::testing::InitGoogleTest(&argc, argv);
return RUN_ALL_TESTS();
}