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slow_read.cc
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slow_read.cc
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#include <mysql.h>
#include <string>
#include <iostream>
#include <unistd.h>
#include "common.hh"
const char* user = "maxuser";
const char* password = "maxpwd";
const char* db = "test";
const char* host = "127.0.0.1";
int port = 4006;
int main(int argc, char** argv)
{
auto cnf = parse(argc, argv);
if (cnf.args.size() < 1)
{
std::cout << "USAGE: QUERY [SLEEP]" << std::endl;;
return 1;
}
int dur = cnf.args.size() > 1 ? std::stoi(cnf.args[1]) : 1;
MYSQL* c = mysql_init(nullptr);
if (!mysql_real_connect(c, cnf.host, cnf.user, cnf.password, cnf.db, cnf.port, nullptr, 0))
{
std::cout << "Connect: " << mysql_error(c) << std::endl;
}
else
{
if (mysql_query(c, argv[1]))
{
std::cout << "Query failed: " << mysql_error(c) << std::endl;
}
else if (auto* res = mysql_use_result(c))
{
std::cout << "Got result, reading one row per second" << std::endl;
while (auto row = mysql_fetch_row(res))
{
sleep(dur);
}
mysql_free_result(res);
}
else
{
std::cout << "No result: " << mysql_error(c) << std::endl;
}
}
mysql_close(c);
return 0;
}