marcelb
/
mySQL
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases 1 Wiki Activity

External periodic engine support

Browse Source
generic v0.8
marcelb 3 months ago
parent 0ae1c69782
commit cf969c0424
5 changed files with 250 additions and 176 deletions
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
Show Stats Download Patch File Download Diff File
  1. 72
      README.md
  2. 15
      lib/core_orm.hpp
  3. 33
      lib/mysql.hpp
  4. 96
      src/mysql.cpp
  5. 210
      test/test.cpp

72
README.md
Unescape View File

@ -13,6 +13,7 @@ A small framework for basic MySQL database operations via MySQL/Connector++
- Response object
- Thread safe
- Exceptions
- Can use external periodic maintenance for connection management
## Installation
@ -31,7 +32,15 @@ using namespace marcelb;
## Usage
### Internal engine
It internally initializes a single thread that periodically checks the states of the connection pool, adds new ones as needed, and cleans up inactive ones.
```c++
#include "../lib/mysql.hpp"
using namespace marcelb::mysql;
/**
* Init
*/
@ -62,6 +71,69 @@ try { | | | |
cout << err << endl;
}
```
### External engine
As I developed quite a few wrappers that have some internal thread, I realized that it was inefficient and made it possible to call the necessary functions periodically outside (one thread per whole application or timer (ASIO), or my asynco wrapper).
```c++
#include "../lib/mysql.hpp"
using namespace marcelb::mysql;
#include "../../asynco/lib/timers.hpp"
using namespace marcelb::asynco;
/**
* Init
*/
MySQL mydb("tcp://192.168.2.10:3306", "user_nm", "passss", "my_db", 5, periodical_engine::external);
periodic mysql_maintenance ( [&mydb] () {
cout << "IZVRŠAVA SE ENGINE" << endl;
mydb.periodic_maintenance();
}, MYSQL_PERIODIC_INTERNAL_TIME);
/**
* You can call multiple queries asynchronously
*/
auto a1 = atask ( [&mydb] () {
try {
auto response = mydb.exec<int,string>("SELECT id,domain FROM records WHERE enabled = 1;");
for (auto row : response) {
cout << get<0>(row) << " " << get<1>(row) << endl;
}
} catch (const string err) {
cout << err << endl;
}
});
auto a2 = atask ( [&mydb] () {
try {
auto response = mydb.exec<string,string>("SELECT zonename,auth_key FROM zones;");
for (auto row : response) {
cout << get<0>(row) << " " << get<1>(row) << endl;
}
} catch (const string err) {
cout << err << endl;
}
});
auto a3 = atask ( [&mydb] () {
try {
auto response = mydb.exec<string,string>("SELECT username,email FROM users WHERE enabled = 1;");
for (auto row : response) {
cout << get<0>(row) << " " << get<1>(row) << endl;
}
} catch (const string err) {
cout << err << endl;
}
});
wait(a1);
wait(a2);
wait(a3);
```
## License
[APACHE 2.0](http://www.apache.org/licenses/LICENSE-2.0/)

15
lib/core_orm.hpp
Unescape View File

@ -1,15 +0,0 @@
#ifndef _MYSQL_CORE_ORM_
#define _MYSQL_CORE_ORM_
using namespace std;
namespace marcelb {
/**
* Implementiraj klase za ORM koje će se ekstendati
*/
}
#endif

33
lib/mysql.hpp
Unescape View File

@ -25,6 +25,23 @@ using namespace sql;
using namespace mysql;
namespace marcelb {
namespace mysql {
/**
*
*/
#define MYSQL_PERIODIC_INTERNAL_TIME 1000
/**
* An enumeration of how periodic functions will be run
* internal - run periodic_maintenance() i new thread
* external - expects periodic_maintenance() to be run periodically outside the library
*
*/
enum class periodical_engine {
internal,
external
};
/**
* A class for creating sql responses
@ -42,7 +59,6 @@ class MySQL_Res : public vector<tuple<Types...>> {
/**
* Type conversion functions
*/
template<typename T>
T getValue(ResultSet* res, int column);
template<>
@ -86,8 +102,9 @@ class MySQL {
string path, username, password, db;
uint available;
uint reconTrys = 3;
bool runBot = true;
future<void> bot;
bool run_engin = true;
future<void> periodic_engin;
periodical_engine engine_type;
/**
* Open one database
@ -126,7 +143,7 @@ class MySQL {
* username, password, database name,
* and number of active connections (optional)
*/
MySQL(const string _path, const string _username, const string _password, const string _db, const uint _available = 1);
MySQL(const string _path, const string _username, const string _password, const string _db, const uint _available = 1, const periodical_engine _engine_type = periodical_engine::internal);
/**
* Disconnect all connections to server
@ -184,6 +201,13 @@ class MySQL {
return result;
}
/**
* If you are using an external periodic motor,
* please call this function in it for proper operation at a certain time interval.
* You can use the default MYSQL_PERIODIC_INTERNAL_TIME
*/
void periodic_maintenance();
/**
* Destruktor
* close all connections
@ -193,6 +217,7 @@ class MySQL {
};
}
}
#endif

96
src/mysql.cpp
Unescape View File

@ -1,52 +1,29 @@
#include "../lib/mysql.hpp"
marcelb::MySQL::MySQL(const string _path, const string _username, const string _password, const string _db, const uint _available) {
marcelb::mysql::MySQL::MySQL(const string _path, const string _username, const string _password, const string _db, const uint _available, const periodical_engine _engine_type) {
path = _path;
username = _username;
password = _password;
db = _db;
available = _available > 0 ? _available : 1;
engine_type = _engine_type;
drv = get_mysql_driver_instance();
bot = async(launch::async, [&](){
while (runBot) {
sleep(1);
while (available>con.size() && runBot) {
try {
Connection* new_con_ptr = create_con();
if (!db.empty()) {
if (open_one(new_con_ptr)) {
throw string("[ERROR] Unable to open database " + db);
}
}
io.lock();
con.push_back(new_con_ptr);
io.unlock();
} catch (const SQLException except) {
cout << except.what() << endl;
} catch (const string except) {
cout << except << endl;
}
if (engine_type == periodical_engine::internal) {
periodic_engin = async(launch::async, [&](){
while (run_engin) {
usleep(MYSQL_PERIODIC_INTERNAL_TIME*1000);
periodic_maintenance();
}
for (int i=0; i<con.size() && runBot; i++) {
if (!con[i]->isValid()) {
io.lock();
con.erase(con.begin()+i);
io.unlock();
i--;
}
}
}
return;
});
return;
});
}
}
Connection* marcelb::MySQL::create_con() {
Connection* marcelb::mysql::MySQL::create_con() {
uint trys = 0;
bool status = true;
Connection* new_con = NULL;
@ -72,7 +49,7 @@ Connection* marcelb::MySQL::create_con() {
return new_con;
}
bool marcelb::MySQL::disconnect() {
bool marcelb::mysql::MySQL::disconnect() {
io.lock();
bool status = true;
@ -84,7 +61,7 @@ bool marcelb::MySQL::disconnect() {
return status;
}
bool marcelb::MySQL::disconnect_one(Connection* con_ptr) {
bool marcelb::mysql::MySQL::disconnect_one(Connection* con_ptr) {
bool status = !con_ptr->isClosed();
if (status) {
@ -106,7 +83,7 @@ bool marcelb::MySQL::disconnect_one(Connection* con_ptr) {
return status;
}
bool marcelb::MySQL::open_one(Connection* con_ptr) {
bool marcelb::mysql::MySQL::open_one(Connection* con_ptr) {
bool status = true; // ako true greška je
uint trys = 0;
@ -134,13 +111,13 @@ bool marcelb::MySQL::open_one(Connection* con_ptr) {
* Broj pokušaja usljed povezivanja s bazom od 1 do unlimited;
*/
void marcelb::MySQL::reconnectTrys(const uint _trys) {
void marcelb::mysql::MySQL::reconnectTrys(const uint _trys) {
io.lock();
reconTrys = _trys;
io.unlock();
}
Connection* marcelb::MySQL::shift_con() {
Connection* marcelb::mysql::MySQL::shift_con() {
while (true) {
while(con.size()) {
io.lock();
@ -156,8 +133,43 @@ Connection* marcelb::MySQL::shift_con() {
}
}
marcelb::MySQL::~MySQL() {
runBot = false;
bot.get();
marcelb::mysql::MySQL::~MySQL() {
if (engine_type == periodical_engine::internal) {
run_engin = false;
periodic_engin.get();
} else {
}
disconnect();
}
void marcelb::mysql::MySQL::periodic_maintenance() {
while (available>con.size() && run_engin) {
try {
Connection* new_con_ptr = create_con();
if (!db.empty()) {
if (open_one(new_con_ptr)) {
throw string("[ERROR] Unable to open database " + db);
}
}
io.lock();
con.push_back(new_con_ptr);
io.unlock();
} catch (const SQLException except) {
cout << except.what() << endl;
} catch (const string except) {
cout << except << endl;
}
}
for (int i=0; i<con.size() && run_engin; i++) {
if (!con[i]->isValid()) {
io.lock();
con.erase(con.begin()+i);
io.unlock();
i--;
}
}
}

210
test/test.cpp
Unescape View File

@ -1,156 +1,135 @@
#include <iostream>
#include <thread>
#include <chrono>
using namespace std;
using namespace chrono;
#include "../lib/mysql.hpp"
using namespace marcelb::mysql;
using namespace std;
using namespace chrono;
using namespace marcelb;
#include "../../asynco/lib/asynco.hpp"
#include "../../asynco/lib/timers.hpp"
using namespace marcelb::asynco;
int main() {
try {
// MySQL mydb("tcp://192.168.2.10:3306", "dinio", "H€r5elfInd1aH@nds", "dinio", 1);
MySQL mydb("tcp://bitelex.ddns.net:3306", "dinio", "H€r5elfInd1aH@nds", "dinio", 5);
sleep(2);
MySQL mydb("tcp://192.168.2.10:3306", "dinio", "H€r5elfInd1aH@nds", "dinio", 10, periodical_engine::external);
// MySQL mydb("tcp://bitelex.ddns.net:3306", "dinio", "H€r5elfInd1aH@nds", "dinio", 5);
periodic mysql_maintenance ( [&mydb] () {
cout << "IZVRŠAVA SE ENGINE" << endl;
mydb.periodic_maintenance();
}, MYSQL_PERIODIC_INTERNAL_TIME);
sleep(5);
auto start = high_resolution_clock::now();
auto a1 = atask ( [&mydb] () {
try {
auto response = mydb.exec<int,string>("SELECT id,domain FROM records WHERE enabled = 1;");
cout << response.affected << " " << response.have_result << endl;
cout << response.rows << " " << response.columns << endl;
// thread t1([&](){
// try {
// sqlQA test_qa;
// test_qa.select().from("records").where("enabled = 1");
// mydb.exec(test_qa);
// test_qa.print(true);
// } catch (const string err) {
// cout << err << endl;
// }
// });
for (auto row : response) {
cout << get<0>(row) << " " << get<1>(row) << endl;
}
// // sleep(2);
for (auto column_name : response.columns_name) {
cout << column_name << endl;
}
// thread t2([&](){
// try {
// sqlQA test_qa;
// test_qa.select().from("zones");
// mydb.exec(test_qa);
// test_qa.print(true);
// } catch (const string err) {
// cout << err << endl;
// }
// });
// // sleep(3);
} catch (const string err) {
cout << err << endl;
}
});
// thread t3([&](){
// try {
// sqlQA test_qa;
// test_qa.select().from("users");
// mydb.exec(test_qa);
// test_qa.print(true);
// } catch (const string err) {
// cout << err << endl;
// }
// });
auto a2 = atask ( [&mydb] () {
try {
auto response = mydb.exec<string,string>("SELECT zonename,auth_key FROM zones;");
cout << response.affected << " " << response.have_result << endl;
cout << response.rows << " " << response.columns << endl;
// // sleep(1);
for (auto row : response) {
cout << get<0>(row) << " " << get<1>(row) << endl;
}
// thread t4([&](){
// try {
// sqlQA test_qa;
// test_qa.select().from("records").where("enabled = 1");
// mydb.exec(test_qa);
// test_qa.print(true);
// } catch (const string err) {
// cout << err << endl;
// }
// });
for (auto column_name : response.columns_name) {
cout << column_name << endl;
}
// thread t5([&](){
// try {
// sqlQA test_qa;
// test_qa.select().from("zones");
// mydb.exec(test_qa);
// test_qa.print(true);
// } catch (const string err) {
// cout << err << endl;
// }
// });
} catch (const string err) {
cout << err << endl;
}
});
// thread t6([&](){
// try {
// sqlQA test_qa;
// test_qa.select().from("users");
// mydb.exec(test_qa);
// test_qa.print(true);
// } catch (const string err) {
// cout << err << endl;
// }
// });
auto a3 = atask ( [&mydb] () {
try {
auto response = mydb.exec<string,string>("SELECT username,email FROM users WHERE enabled = 1;");
cout << response.affected << " " << response.have_result << endl;
cout << response.rows << " " << response.columns << endl;
// t1.join();
// t2.join();
// t3.join();
// t4.join();
// t5.join();
// t6.join();
for (auto row : response) {
cout << get<0>(row) << " " << get<1>(row) << endl;
}
// one by one
try {
// sqlQA test_qa;
// test_qa.select("id,domain").from("records").where("enabled = 1");
// cout << test_qa.cmd << endl;
// mydb.exec(test_qa);
// test_qa.print(true);
auto response = mydb.exec<int,string>("SELECT id,domain FROM records WHERE enabled = 0;");
// auto response = mydb.exec<int,string>("UPDATE records SET enabled = 1;");
cout << response.affected << " " << response.have_result << endl;
cout << response.rows << " " << response.columns << endl;
for (auto row : response) {
cout << get<0>(row) << " " << get<1>(row) << endl;
}
for (auto column_name : response.columns_name) {
cout << column_name << endl;
}
for (auto column_name : response.columns_name) {
cout << column_name << endl;
} catch (const string err) {
cout << err << endl;
}
});
} catch (const string err) {
cout << err << endl;
}
wait(a1);
wait(a2);
wait(a3);
// sleep(20);
// one by one
// try {
// sqlQA test_qa;
// test_qa.select().from("users");
// mydb.exec(test_qa);
// test_qa.print(true);
// } catch (const string err) {
// cout << err << endl;
// }
// auto response = mydb.exec<int,string>("SELECT id,domain FROM records WHERE enabled = 1;");
// // auto response = mydb.exec<int,string>("UPDATE records SET enabled = 1;");
// cout << response.affected << " " << response.have_result << endl;
// cout << response.rows << " " << response.columns << endl;
// sleep(20);
// for (auto row : response) {
// cout << get<0>(row) << " " << get<1>(row) << endl;
// }
// for (auto column_name : response.columns_name) {
// cout << column_name << endl;
// }
// try {
// sqlQA test_qa;
// test_qa.select("zone_id,record_type,enabled").from("records").where("domain = 'bitelex.test'");
// mydb.exec(test_qa);
// test_qa.print(true);
// } catch (const string err) {
// cout << err << endl;
// }
// auto a1 = atask ( [&mydb] () {
// try {
// auto response = mydb.exec<string,string>("SELECT username,email FROM records WHERE enabled = 1;");
// cout << response.affected << " " << response.have_result << endl;
// cout << response.rows << " " << response.columns << endl;
// for (auto row : response) {
// cout << get<0>(row) << " " << get<1>(row) << endl;
// }
// for (auto column_name : response.columns_name) {
// cout << column_name << endl;
// }
// } catch (const string err) {
// cout << err << endl;
// }
// });
// wait(a1);
auto end = high_resolution_clock::now();
auto duration = duration_cast<microseconds>(end - start);
cout << "-------------Izvršilo se za: " << (double)(duration.count() / 1000.0) << " ms"<< endl;
// sleep(100);
sleep(100);
} catch (const SQLException error) {
@ -161,7 +140,8 @@ int main() {
cout << "Jebi ga" << endl;
}
sleep(600);
// sleep(600);
_asynco_engine.run();
return 0;
}
Write Preview
Loading…
Cancel
Save