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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_stmt.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 mysql transaction example
#include <gflags/gflags.h>
#include <butil/logging.h>
#include <bthread/bthread.h>
#include <brpc/channel.h>
#include "brpc/policy/mysql/mysql.h"
#include "brpc/policy/mysql/mysql_authenticator.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_int32(timeout_ms, 5000, "RPC timeout in milliseconds");
DEFINE_int32(connect_timeout_ms, 5000, "RPC timeout in milliseconds");
DEFINE_int32(max_retry, 0, "Max retries(not including the first RPC)");
DEFINE_int32(thread_num, 1, "Number of threads to send requests");
DEFINE_int32(count, 1, "Number of request to send pre thread");
namespace brpc {
const char* logo();
}
struct SenderArgs {
brpc::Channel* mysql_channel;
brpc::MysqlStatement* mysql_stmt;
std::vector<std::string> commands;
};
// Send `command' to mysql-server via `channel'
static void* access_mysql(void* void_args) {
SenderArgs* args = (SenderArgs*)void_args;
brpc::Channel* channel = args->mysql_channel;
brpc::MysqlStatement* stmt = args->mysql_stmt;
const std::vector<std::string>& commands = args->commands;
for (int i = 0; i < FLAGS_count; ++i) {
brpc::MysqlRequest request(stmt);
for (size_t i = 1; i < commands.size(); i += 2) {
if (commands[i] == "int8") {
int8_t val = strtol(commands[i + 1].c_str(), NULL, 10);
if (!request.AddParam(val)) {
LOG(ERROR) << "Fail to add int8 param";
return NULL;
}
} else if (commands[i] == "uint8") {
uint8_t val = strtoul(commands[i + 1].c_str(), NULL, 10);
if (!request.AddParam(val)) {
LOG(ERROR) << "Fail to add uint8 param";
return NULL;
}
} else if (commands[i] == "int16") {
int16_t val = strtol(commands[i + 1].c_str(), NULL, 10);
if (!request.AddParam(val)) {
LOG(ERROR) << "Fail to add uint16 param";
return NULL;
}
} else if (commands[i] == "uint16") {
uint16_t val = strtoul(commands[i + 1].c_str(), NULL, 10);
if (!request.AddParam(val)) {
LOG(ERROR) << "Fail to add uint16 param";
return NULL;
}
} else if (commands[i] == "int32") {
int32_t val = strtol(commands[i + 1].c_str(), NULL, 10);
if (!request.AddParam(val)) {
LOG(ERROR) << "Fail to add int32 param";
return NULL;
}
} else if (commands[i] == "uint32") {
uint32_t val = strtoul(commands[i + 1].c_str(), NULL, 10);
if (!request.AddParam(val)) {
LOG(ERROR) << "Fail to add uint32 param";
return NULL;
}
} else if (commands[i] == "int64") {
int64_t val = strtol(commands[i + 1].c_str(), NULL, 10);
if (!request.AddParam(val)) {
LOG(ERROR) << "Fail to add int64 param";
return NULL;
}
} else if (commands[i] == "uint64") {
uint64_t val = strtoul(commands[i + 1].c_str(), NULL, 10);
if (!request.AddParam(val)) {
LOG(ERROR) << "Fail to add uint64 param";
return NULL;
}
} else if (commands[i] == "float") {
float val = strtof(commands[i + 1].c_str(), NULL);
if (!request.AddParam(val)) {
LOG(ERROR) << "Fail to add float param";
return NULL;
}
} else if (commands[i] == "double") {
double val = strtod(commands[i + 1].c_str(), NULL);
if (!request.AddParam(val)) {
LOG(ERROR) << "Fail to add double param";
return NULL;
}
} else if (commands[i] == "string") {
if (!request.AddParam(commands[i + 1])) {
LOG(ERROR) << "Fail to add string param";
return NULL;
}
} else {
LOG(ERROR) << "Wrong param type " << commands[i];
}
}
brpc::MysqlResponse response;
brpc::Controller cntl;
channel->CallMethod(NULL, &cntl, &request, &response, NULL);
if (cntl.Failed()) {
LOG(ERROR) << "Fail to access mysql, " << cntl.ErrorText();
return NULL;
}
std::cout << response << std::endl;
}
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;
}
if (argc <= 1) {
LOG(ERROR) << "No sql statement args";
} else {
std::vector<std::string> commands;
commands.reserve(argc * 16);
for (int i = 1; i < argc; ++i) {
commands.push_back(argv[i]);
}
auto stmt(brpc::NewMysqlStatement(channel, commands[0]));
if (stmt == NULL) {
LOG(ERROR) << "Fail to create mysql statement";
return -1;
}
std::vector<SenderArgs> args;
std::vector<bthread_t> bids;
args.resize(FLAGS_thread_num);
bids.resize(FLAGS_thread_num);
for (int i = 0; i < FLAGS_thread_num; ++i) {
args[i].mysql_channel = &channel;
args[i].mysql_stmt = stmt.get();
args[i].commands = commands;
if (bthread_start_background(&bids[i], NULL, access_mysql, &args[i]) != 0) {
LOG(ERROR) << "Fail to create bthread";
return -1;
}
}
for (int i = 0; i < FLAGS_thread_num; ++i) {
bthread_join(bids[i], NULL);
}
}
return 0;
}
/* vim: set expandtab ts=4 sw=4 sts=4 tw=100: */