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chore: import upstream snapshot with attribution

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wehub-resource-sync
2026-07-13 13:29:29 +08:00
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example/mysql_c++/mysql_press.cpp
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/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.
*/
// A brpc based command-line interface to talk with mysql-server
#include <sstream>
#include <gflags/gflags.h>
#include <butil/logging.h>
#include <brpc/channel.h>
#include "brpc/policy/mysql/mysql.h"
#include "brpc/policy/mysql/mysql_authenticator.h"
#include <bvar/bvar.h>
#include <bthread/bthread.h>
#include <brpc/server.h>
DEFINE_string(connection_type, "pooled", "Connection type. Available values: pooled, short");
DEFINE_string(server, "127.0.0.1", "IP Address of server");
DEFINE_int32(port, 3306, "Port of server");
DEFINE_string(user, "brpcuser", "user name");
DEFINE_string(password, "12345678", "password");
DEFINE_string(schema, "brpc_test", "schema");
DEFINE_string(params, "", "params");
DEFINE_string(collation, "utf8mb4_general_ci", "collation");
DEFINE_string(data, "ABCDEF", "data");
DEFINE_int32(timeout_ms, 5000, "RPC timeout in milliseconds");
DEFINE_int32(connect_timeout_ms, 5000, "RPC timeout in milliseconds");
DEFINE_int32(max_retry, 3, "Max retries(not including the first RPC)");
DEFINE_int32(thread_num, 50, "Number of threads to send requests");
DEFINE_bool(use_bthread, false, "Use bthread to send requests");
DEFINE_int32(dummy_port, -1, "port of dummy server(for monitoring)");
DEFINE_int32(op_type, 0, "CRUD operation, 0:INSERT, 1:SELECT, 2:UPDATE");
DEFINE_bool(dont_fail, false, "Print fatal when some call failed");
bvar::LatencyRecorder g_latency_recorder("client");
bvar::Adder<int> g_error_count("client_error_count");
struct SenderArgs {
int base_index;
brpc::Channel* mysql_channel;
};
const std::string insert =
"insert into brpc_press(col1,col2,col3,col4) values "
"('"
"ABCABCABCABCABCABCABCABCABCABCABCABCABCABCABCABCABCABCABCABCABCABCABCABCABCABCA"
"BCABCABCABCABCABCABCA', '" +
FLAGS_data +
"' ,1.5, "
"now())";
// Send `command' to mysql-server via `channel'
static void* sender(void* void_args) {
SenderArgs* args = (SenderArgs*)void_args;
std::stringstream command;
if (FLAGS_op_type == 0) {
command << insert;
} else if (FLAGS_op_type == 1) {
command << "select * from brpc_press where id = " << args->base_index + 1;
} else if (FLAGS_op_type == 2) {
command << "update brpc_press set col2 = '" + FLAGS_data + "' where id = "
<< args->base_index + 1;
} else {
LOG(ERROR) << "wrong op type " << FLAGS_op_type;
}
brpc::MysqlRequest request;
if (!request.Query(command.str())) {
LOG(ERROR) << "Fail to execute command";
return NULL;
}
while (!brpc::IsAskedToQuit()) {
brpc::MysqlResponse response;
brpc::Controller cntl;
args->mysql_channel->CallMethod(NULL, &cntl, &request, &response, NULL);
const int64_t elp = cntl.latency_us();
if (!cntl.Failed()) {
g_latency_recorder << elp;
if (FLAGS_op_type == 0) {
CHECK_EQ(response.reply(0).is_ok(), true);
} else if (FLAGS_op_type == 1) {
CHECK_EQ(response.reply(0).row_count(), 1);
} else if (FLAGS_op_type == 2) {
CHECK_EQ(response.reply(0).is_ok(), true);
}
} else {
g_error_count << 1;
CHECK(brpc::IsAskedToQuit() || !FLAGS_dont_fail)
<< "error=" << cntl.ErrorText() << " latency=" << elp;
// We can't connect to the server, sleep a while. Notice that this
// is a specific sleeping to prevent this thread from spinning too
// fast. You should continue the business logic in a production
// server rather than sleeping.
bthread_usleep(50000);
}
}
return NULL;
}
int main(int argc, char* argv[]) {
// Parse gflags. We recommend you to use gflags as well.
GFLAGS_NS::ParseCommandLineFlags(&argc, &argv, true);
// A Channel represents a communication line to a Server. Notice that
// Channel is thread-safe and can be shared by all threads in your program.
brpc::Channel channel;
// Initialize the channel, NULL means using default options.
brpc::ChannelOptions options;
options.protocol = brpc::PROTOCOL_MYSQL;
options.connection_type = FLAGS_connection_type;
options.timeout_ms = FLAGS_timeout_ms /*milliseconds*/;
options.connect_timeout_ms = FLAGS_connect_timeout_ms;
options.max_retry = FLAGS_max_retry;
options.auth = new brpc::policy::MysqlAuthenticator(
FLAGS_user, FLAGS_password, FLAGS_schema, FLAGS_params, FLAGS_collation);
if (channel.Init(FLAGS_server.c_str(), FLAGS_port, &options) != 0) {
LOG(ERROR) << "Fail to initialize channel";
return -1;
}
// create table brpc_press
{
brpc::MysqlRequest request;
if (!request.Query(
"CREATE TABLE IF NOT EXISTS `brpc_press`(`id` INT UNSIGNED AUTO_INCREMENT, `col1` "
"VARCHAR(100) NOT NULL, `col2` VARCHAR(1024) NOT NULL, `col3` decimal(10,0) NOT "
"NULL, `col4` DATE, PRIMARY KEY ( `id` )) ENGINE=InnoDB DEFAULT CHARSET=utf8;")) {
LOG(ERROR) << "Fail to create table";
return -1;
}
brpc::MysqlResponse response;
brpc::Controller cntl;
channel.CallMethod(NULL, &cntl, &request, &response, NULL);
if (!cntl.Failed()) {
std::cout << response << std::endl;
} else {
LOG(ERROR) << "Fail to access mysql, " << cntl.ErrorText();
return -1;
}
}
// truncate table
{
brpc::MysqlRequest request;
if (!request.Query("truncate table brpc_press")) {
LOG(ERROR) << "Fail to truncate table";
return -1;
}
brpc::MysqlResponse response;
brpc::Controller cntl;
channel.CallMethod(NULL, &cntl, &request, &response, NULL);
if (!cntl.Failed()) {
std::cout << response << std::endl;
} else {
LOG(ERROR) << "Fail to access mysql, " << cntl.ErrorText();
return -1;
}
}
// prepare data for select, update
if (FLAGS_op_type != 0) {
for (int i = 0; i < FLAGS_thread_num; ++i) {
brpc::MysqlRequest request;
if (!request.Query(insert)) {
LOG(ERROR) << "Fail to execute command";
return -1;
}
brpc::MysqlResponse response;
brpc::Controller cntl;
channel.CallMethod(NULL, &cntl, &request, &response, NULL);
if (cntl.Failed()) {
LOG(ERROR) << cntl.ErrorText();
return -1;
}
if (!response.reply(0).is_ok()) {
LOG(ERROR) << "prepare data failed";
return -1;
}
}
}
if (FLAGS_dummy_port >= 0) {
brpc::StartDummyServerAt(FLAGS_dummy_port);
}
// test CRUD operations
std::vector<bthread_t> bids;
std::vector<pthread_t> pids;
bids.resize(FLAGS_thread_num);
pids.resize(FLAGS_thread_num);
std::vector<SenderArgs> args;
args.resize(FLAGS_thread_num);
for (int i = 0; i < FLAGS_thread_num; ++i) {
args[i].base_index = i;
args[i].mysql_channel = &channel;
if (!FLAGS_use_bthread) {
if (pthread_create(&pids[i], NULL, sender, &args[i]) != 0) {
LOG(ERROR) << "Fail to create pthread";
return -1;
}
} else {
if (bthread_start_background(&bids[i], NULL, sender, &args[i]) != 0) {
LOG(ERROR) << "Fail to create bthread";
return -1;
}
}
}
while (!brpc::IsAskedToQuit()) {
sleep(1);
LOG(INFO) << "Accessing mysql-server at qps=" << g_latency_recorder.qps(1)
<< " latency=" << g_latency_recorder.latency(1);
}
LOG(INFO) << "mysql_client is going to quit";
for (int i = 0; i < FLAGS_thread_num; ++i) {
if (!FLAGS_use_bthread) {
pthread_join(pids[i], NULL);
} else {
bthread_join(bids[i], NULL);
}
}
return 0;
}