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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
commit f52cf32e56
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example/mysql_c++/mysqlclient_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>
extern "C" {
#include <mysql/mysql.h>
}
#include <brpc/controller.h>
#include <bvar/bvar.h>
#include <bthread/bthread.h>
#include <brpc/server.h>
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(data, "ABCDEF", "data");
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, 3: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;
MYSQL* mysql_conn;
};
const std::string insert =
"insert into mysqlclient_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 mysqlclient_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;
}
std::string command_str = command.str();
while (!brpc::IsAskedToQuit()) {
const int64_t begin_time_us = butil::cpuwide_time_us();
const int rc = mysql_real_query(args->mysql_conn, command_str.c_str(), command_str.size());
if (rc != 0) {
goto ERROR;
}
if (mysql_errno(args->mysql_conn) == 0) {
if (FLAGS_op_type == 0) {
CHECK_EQ(mysql_affected_rows(args->mysql_conn), 1);
} else if (FLAGS_op_type == 1) {
MYSQL_RES* res = mysql_store_result(args->mysql_conn);
if (res == NULL) {
LOG(INFO) << "not found";
} else {
CHECK_EQ(mysql_num_rows(res), 1);
mysql_free_result(res);
}
} else if (FLAGS_op_type == 2) {
}
const int64_t elp = butil::cpuwide_time_us() - begin_time_us;
g_latency_recorder << elp;
} else {
goto ERROR;
}
if (false) {
ERROR:
const int64_t elp = butil::cpuwide_time_us() - begin_time_us;
g_error_count << 1;
CHECK(brpc::IsAskedToQuit() || !FLAGS_dont_fail)
<< "error=" << mysql_error(args->mysql_conn) << " 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);
if (FLAGS_dummy_port >= 0) {
brpc::StartDummyServerAt(FLAGS_dummy_port);
}
MYSQL* conn = mysql_init(NULL);
if (!mysql_real_connect(conn,
FLAGS_server.c_str(),
FLAGS_user.c_str(),
FLAGS_password.c_str(),
FLAGS_schema.c_str(),
FLAGS_port,
NULL,
0)) {
LOG(ERROR) << mysql_error(conn);
return -1;
}
// create table mysqlclient_press
{
const char* sql =
"CREATE TABLE IF NOT EXISTS `mysqlclient_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;";
const int rc = mysql_real_query(conn, sql, strlen(sql));
if (rc != 0) {
LOG(ERROR) << "Fail to execute sql, " << mysql_error(conn);
return -1;
}
if (mysql_errno(conn) != 0) {
LOG(ERROR) << "Fail to store result, " << mysql_error(conn);
return -1;
}
}
// truncate table
{
const char* sql = "truncate table mysqlclient_press";
const int rc = mysql_real_query(conn, sql, strlen(sql));
if (rc != 0) {
LOG(ERROR) << "Fail to execute sql, " << mysql_error(conn);
return -1;
}
if (mysql_errno(conn) != 0) {
LOG(ERROR) << "Fail to store result, " << mysql_error(conn);
return -1;
}
}
// prepare data for select, update
if (FLAGS_op_type != 0) {
for (int i = 0; i < FLAGS_thread_num; ++i) {
const int rc = mysql_real_query(conn, insert.c_str(), insert.size());
if (rc != 0) {
LOG(ERROR) << "Fail to execute sql, " << mysql_error(conn);
return -1;
}
if (mysql_errno(conn) != 0) {
LOG(ERROR) << "Fail to store result, " << mysql_error(conn);
return -1;
}
}
}
// 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) {
MYSQL* conn = mysql_init(NULL);
if (!mysql_real_connect(conn,
FLAGS_server.c_str(),
FLAGS_user.c_str(),
FLAGS_password.c_str(),
FLAGS_schema.c_str(),
FLAGS_port,
NULL,
0)) {
LOG(ERROR) << mysql_error(conn);
return -1;
}
args[i].base_index = i;
args[i].mysql_conn = conn;
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;
}