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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/channel/channel_stack.h"
#include <limits.h>
#include <string>
#include "absl/status/status.h"
#include "gtest/gtest.h"
#include <grpc/support/alloc.h>
#include "src/core/lib/channel/channel_args.h"
#include "src/core/lib/channel/channel_args_preconditioning.h"
#include "src/core/lib/config/core_configuration.h"
#include "src/core/lib/gprpp/status_helper.h"
#include "src/core/lib/iomgr/exec_ctx.h"
#include "test/core/util/test_config.h"
static grpc_error_handle channel_init_func(grpc_channel_element* elem,
grpc_channel_element_args* args) {
int test_value = grpc_channel_args_find_integer(args->channel_args,
"test_key", {-1, 0, INT_MAX});
EXPECT_EQ(test_value, 42);
auto* ee = grpc_channel_args_find_pointer<
grpc_event_engine::experimental::EventEngine>(
args->channel_args, GRPC_INTERNAL_ARG_EVENT_ENGINE);
EXPECT_NE(ee, nullptr);
EXPECT_TRUE(args->is_first);
EXPECT_TRUE(args->is_last);
*static_cast<int*>(elem->channel_data) = 0;
return absl::OkStatus();
}
static grpc_error_handle call_init_func(
grpc_call_element* elem, const grpc_call_element_args* /*args*/) {
++*static_cast<int*>(elem->channel_data);
*static_cast<int*>(elem->call_data) = 0;
return absl::OkStatus();
}
static void channel_destroy_func(grpc_channel_element* /*elem*/) {}
static void call_destroy_func(grpc_call_element* elem,
const grpc_call_final_info* /*final_info*/,
grpc_closure* /*ignored*/) {
++*static_cast<int*>(elem->channel_data);
}
static void call_func(grpc_call_element* elem,
grpc_transport_stream_op_batch* /*op*/) {
++*static_cast<int*>(elem->call_data);
}
static void channel_func(grpc_channel_element* elem,
grpc_transport_op* /*op*/) {
++*static_cast<int*>(elem->channel_data);
}
static void free_channel(void* arg, grpc_error_handle /*error*/) {
grpc_channel_stack_destroy(static_cast<grpc_channel_stack*>(arg));
gpr_free(arg);
}
static void free_call(void* arg, grpc_error_handle /*error*/) {
grpc_call_stack_destroy(static_cast<grpc_call_stack*>(arg), nullptr, nullptr);
gpr_free(arg);
}
TEST(ChannelStackTest, CreateChannelStack) {
const grpc_channel_filter filter = {
call_func,
nullptr,
channel_func,
sizeof(int),
call_init_func,
grpc_call_stack_ignore_set_pollset_or_pollset_set,
call_destroy_func,
sizeof(int),
channel_init_func,
grpc_channel_stack_no_post_init,
channel_destroy_func,
grpc_channel_next_get_info,
"some_test_filter"};
const grpc_channel_filter* filters = &filter;
grpc_channel_stack* channel_stack;
grpc_call_stack* call_stack;
grpc_channel_element* channel_elem;
grpc_call_element* call_elem;
int* channel_data;
int* call_data;
grpc_core::ExecCtx exec_ctx;
grpc_slice path = grpc_slice_from_static_string("/service/method");
channel_stack = static_cast<grpc_channel_stack*>(
gpr_malloc(grpc_channel_stack_size(&filters, 1)));
auto channel_args = grpc_core::CoreConfiguration::Get()
.channel_args_preconditioning()
.PreconditionChannelArgs(nullptr)
.Set("test_key", 42);
ASSERT_TRUE(GRPC_LOG_IF_ERROR(
"grpc_channel_stack_init",
grpc_channel_stack_init(1, free_channel, channel_stack, &filters, 1,
channel_args, "test", channel_stack)));
EXPECT_EQ(channel_stack->count, 1);
channel_elem = grpc_channel_stack_element(channel_stack, 0);
channel_data = static_cast<int*>(channel_elem->channel_data);
EXPECT_EQ(*channel_data, 0);
call_stack =
static_cast<grpc_call_stack*>(gpr_malloc(channel_stack->call_stack_size));
const grpc_call_element_args args = {
call_stack, /* call_stack */
nullptr, /* server_transport_data */
nullptr, /* context */
path, /* path */
gpr_get_cycle_counter(), /* start_time */
grpc_core::Timestamp::InfFuture(), /* deadline */
nullptr, /* arena */
nullptr, /* call_combiner */
};
grpc_error_handle error =
grpc_call_stack_init(channel_stack, 1, free_call, call_stack, &args);
ASSERT_TRUE(error.ok()) << grpc_core::StatusToString(error);
EXPECT_EQ(call_stack->count, 1);
call_elem = grpc_call_stack_element(call_stack, 0);
EXPECT_EQ(call_elem->filter, channel_elem->filter);
EXPECT_EQ(call_elem->channel_data, channel_elem->channel_data);
call_data = static_cast<int*>(call_elem->call_data);
EXPECT_EQ(*call_data, 0);
EXPECT_EQ(*channel_data, 1);
GRPC_CALL_STACK_UNREF(call_stack, "done");
grpc_core::ExecCtx::Get()->Flush();
EXPECT_EQ(*channel_data, 2);
GRPC_CHANNEL_STACK_UNREF(channel_stack, "done");
grpc_slice_unref(path);
}
int main(int argc, char** argv) {
grpc::testing::TestEnvironment env(&argc, argv);
::testing::InitGoogleTest(&argc, argv);
grpc::testing::TestGrpcScope grpc_scope;
return RUN_ALL_TESTS();
}
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