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

Deque implementation done, dev tested

Browse Source
queue v0.5_queue
marcelb 1 year ago
parent 774151e534
commit 4c4fdcc938
4 changed files with 110 additions and 183 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. 19
      lib/mysql.hpp
  2. 177
      src/mysql.cpp
  3. 97
      test/test.cpp
  4. BIN
      test/test.o

19
lib/mysql.hpp
Unescape View File

@ -4,6 +4,7 @@
#include <string> #include <string>
#include <sstream> #include <sstream>
#include <vector> #include <vector>
#include <deque>
#include <map> #include <map>
#include <iostream> #include <iostream>
#include <mutex> #include <mutex>
@ -64,24 +65,22 @@ class mySQL {
private: private:
mutex io; mutex io;
MySQL_Driver *drv; MySQL_Driver *drv;
vector<pair<mutex*, Connection*>> con; deque<Connection*> con;
string path, username, password, db; string path, username, password, db;
bool isPersistent; uint available;
uint numOfCon;
uint reconTrys = 3; uint reconTrys = 3;
bool runBot = true; bool runBot = true;
future<void> bot; future<void> bot;
void getColumns(const string _table, vector<string> &_columns, Connection *ptr_con); // privatno void getColumns(const string _table, vector<string> &_columns, Connection *ptr_con); // privatno
bool open_one(const uint idx); bool open_one(Connection* con_ptr);
bool connect_one(const uint idx); Connection* create_con();
bool disconnect_one(const uint idx); bool disconnect_one(Connection* con_ptr);
uint findFreeCon(); Connection* shift_con();
public: public:
mySQL(const string _path, const string _username, const string _password, const string _db, const bool _isPersistent = false, const uint _numOfCon = 1); mySQL(const string _path, const string _username, const string _password, const string _db, const uint _available = 1);
bool open(const string _db = "");
bool connect();
bool disconnect(); bool disconnect();
void reconnectTrys(const uint _trys); void reconnectTrys(const uint _trys);
void exec(sqlQA &sql_qa); void exec(sqlQA &sql_qa);

177
src/mysql.cpp
Unescape View File

@ -94,83 +94,57 @@ void sqlQA::parse_columns(const string _columns) {
} }
} }
mySQL::mySQL(const string _path, const string _username, const string _password, const string _db, const bool _isPersistent, const uint _numOfCon) { mySQL::mySQL(const string _path, const string _username, const string _password, const string _db, const uint _available) {
path = _path; path = _path;
username = _username; username = _username;
password = _password; password = _password;
db = _db; db = _db;
isPersistent = _numOfCon > 1 ? true : _isPersistent; available = _available > 0 ? _available : 1;
numOfCon = _numOfCon > 0 ? _numOfCon : 1;
drv = get_mysql_driver_instance(); drv = get_mysql_driver_instance();
if (isPersistent) { bot = async(launch::async, [&]{
if (connect()) { while (runBot) {
throw string("[ERROR] Unable to connect database "); while (available>con.size() && runBot) {
}
if (!db.empty()) {
if (open()) {
throw string("[ERROR] Unable to open database " + db);
}
}
bot = async(launch::async, [&]{
while (runBot) {
try { try {
for (uint i=0; i<con.size(); i++) { Connection* new_con_ptr = create_con();
if (con[i].first->try_lock()) { if (!db.empty()) {
if (!con[i].second->isValid()) { if (open_one(new_con_ptr)) {
if (connect_one(i)) { throw string("[ERROR] Unable to open database " + db);
throw string("[ERROR] Unable to connect database ");
}
if (!db.empty()) {
if (open_one(i)) {
throw string("[ERROR] Unable to open database " + db);
}
}
}
con[i].first->unlock();
} }
} }
io.lock();
con.push_back(new_con_ptr);
io.unlock();
} catch (const SQLException except) { } catch (const SQLException except) {
cout << except.what() << endl; cout << except.what() << endl;
} catch (const string except) { } catch (const string except) {
cout << except << endl; cout << except << endl;
} }
} }
return; }
});
}
}
bool mySQL::connect() {
io.lock();
bool status = true;
for (uint i=0; i<numOfCon; i++) { return;
status = connect_one(i); });
}
io.unlock();
return status;
} }
bool mySQL::connect_one(const uint idx) {
Connection* mySQL::create_con() {
uint trys = 0; uint trys = 0;
bool status = true; bool status = true;
Connection* new_con = NULL;
while (reconTrys == unlimited ? status : (trys <= reconTrys && status)) { while (reconTrys == unlimited ? status : (trys <= reconTrys && status)) {
try { try {
if (con.size() < numOfCon) { Connection* con_can = drv->connect(path, username, password);
con.push_back(make_pair(new mutex, drv->connect(path, username, password))); status = !con_can->isValid();
if (!status) {
new_con = con_can;
} }
else { else if (!con_can->isClosed()) {
con[idx].second = drv->connect(path, username, password); disconnect_one(con_can);
} }
status = !con[idx].second->isValid() && con[idx].second->isClosed() || con[idx].second->isClosed();
} }
catch (const SQLException &error) { catch (const SQLException &error) {
cout << error.what() << endl; cout << error.what() << endl;
@ -179,7 +153,7 @@ bool mySQL::connect_one(const uint idx) {
} }
} }
return status; return new_con;
} }
bool mySQL::disconnect() { bool mySQL::disconnect() {
@ -187,20 +161,20 @@ bool mySQL::disconnect() {
bool status = true; bool status = true;
for (uint i=0; i<con.size(); i++) { for (uint i=0; i<con.size(); i++) {
status = disconnect_one(i) ; status = disconnect_one(con[i]) ;
} }
io.unlock(); io.unlock();
return status; return status;
} }
bool mySQL::disconnect_one(const uint idx) { bool mySQL::disconnect_one(Connection* con_ptr) {
bool status = !con[idx].second->isClosed(); bool status = !con_ptr->isClosed();
if (status) { if (status) {
try { try {
con[idx].second->close(); con_ptr->close();
status = !con[idx].second->isClosed(); status = !con_ptr->isClosed();
} }
catch (const SQLException &error) { catch (const SQLException &error) {
cout << error.what() << endl; cout << error.what() << endl;
@ -212,32 +186,18 @@ bool mySQL::disconnect_one(const uint idx) {
status = false; // već je zatvorena status = false; // već je zatvorena
} }
delete con[idx].second; delete con_ptr;
return status;
}
bool mySQL::open(const string _db) {
io.lock();
db = _db.empty() ? db : _db;
bool status = true; // ako true greška je
for (uint i=0; i<con.size(); i++) {
status = open_one(i);
}
io.unlock();
return status; return status;
} }
bool mySQL::open_one(const uint idx) { bool mySQL::open_one(Connection* con_ptr) {
bool status = true; // ako true greška je bool status = true; // ako true greška je
uint trys = 0; uint trys = 0;
while (reconTrys == unlimited ? status : (trys <= reconTrys && status)) { while (reconTrys == unlimited ? status : (trys <= reconTrys && status)) {
try { try {
if (con[idx].second->isValid()) { if (con_ptr->isValid()) {
con[idx].second->setSchema(db); con_ptr->setSchema(db);
status = false; status = false;
} }
else { else {
@ -264,55 +224,19 @@ void mySQL::reconnectTrys(const uint _trys) {
io.unlock(); io.unlock();
} }
void mySQL::exec(sqlQA &sql_qa) {
if (!isPersistent) {
if (connect()) {
throw string("[ERROR] Unable to connect database ");
}
if (!db.empty()) {
if (open()) {
throw string("[ERROR] Unable to open database " + db);
}
}
}
const uint idx = findFreeCon();
if (!isPersistent || con[idx].second->isClosed()) { void mySQL::exec(sqlQA &sql_qa) {
if (connect_one(idx)) { Connection* con_ptr = shift_con();
throw string("[ERROR] Unable to connect database ");
}
if (open_one(idx)) {
throw string("[ERROR] Unable to open database " + db);
}
}
else if (!con[idx].second->isValid()) {
if(disconnect_one(idx)) {
throw string("[ERROR] Unable to close database ");
}
if (connect_one(idx)) {
throw string("[ERROR] Unable to connect database ");
}
if (open_one(idx)) {
throw string("[ERROR] Unable to open database " + db);
}
}
try { try {
vector<string> columns = sql_qa.columns; vector<string> columns = sql_qa.columns;
if (columns.empty() && !sql_qa.table.empty()) { if (columns.empty() && !sql_qa.table.empty()) {
getColumns(sql_qa.table, columns, con[idx].second); getColumns(sql_qa.table, columns, con_ptr);
} }
Statement *stmt; Statement *stmt;
stmt = con[idx].second->createStatement(); stmt = con_ptr->createStatement();
if (sql_qa.isSelect) { if (sql_qa.isSelect) {
ResultSet *res = stmt->executeQuery(sql_qa.cmd); ResultSet *res = stmt->executeQuery(sql_qa.cmd);
@ -342,23 +266,16 @@ void mySQL::exec(sqlQA &sql_qa) {
stmt->close(); stmt->close();
delete stmt; delete stmt;
disconnect_one(con_ptr);
} }
catch (const SQLException &error) { catch (const SQLException &error) {
cout << error.what() << endl; cout << error.what() << endl;
sql_qa.executed = false; sql_qa.executed = false;
} }
catch (const string error) { catch (const string error) {
con[idx].first->unlock();
throw error; throw error;
} }
if (!isPersistent) {
if(disconnect_one(idx)) {
throw string("[ERROR] Unable to close database ");
}
}
con[idx].first->unlock();
} }
void mySQL::getColumns(const string _table, vector<string> &_columns, Connection *ptr_con) { void mySQL::getColumns(const string _table, vector<string> &_columns, Connection *ptr_con) {
@ -377,16 +294,16 @@ void mySQL::getColumns(const string _table, vector<string> &_columns, Connection
delete stmt; delete stmt;
} }
uint mySQL::findFreeCon() { Connection* mySQL::shift_con() {
lock_guard<mutex> master(io);
while (true) { while (true) {
io.lock();
for (uint i=0; i<con.size(); i++) { for (uint i=0; i<con.size(); i++) {
// if (con[i].second->isValid()) { Connection* con_ptr = con[0];
if (con[i].first->try_lock()) { con.pop_front();
return i; io.unlock();
} return con_ptr;
// }
} }
io.unlock();
} }
} }

97
test/test.cpp
Unescape View File

@ -9,49 +9,59 @@ using namespace chrono;
int main() { int main() {
try { try {
mySQL mydb("tcp://192.168.2.10:3306", "dinio", "H€r5elfInd1aH@nds", "dinio", true, 3); mySQL mydb("tcp://192.168.2.10:3306", "dinio", "H€r5elfInd1aH@nds", "dinio", 1);
sleep(3);
auto start = high_resolution_clock::now(); auto start = high_resolution_clock::now();
thread t1([&](){
try { // thread t1([&](){
sqlQA test_qa; // try {
test_qa.select().from("records").where("enabled = 1"); // sqlQA test_qa;
mydb.exec(test_qa); // test_qa.select().from("records").where("enabled = 1");
//test_qa.print(true); // mydb.exec(test_qa);
} catch (const string err) { // test_qa.print(true);
cout << err << endl; // } catch (const string err) {
} // cout << err << endl;
}); // }
// });
// // sleep(2);
// thread t2([&](){ // thread t2([&](){
// try { // try {
// sqlQA test_qa; // sqlQA test_qa;
// test_qa.select().from("zones"); // test_qa.select().from("zones");
// mydb.exec(test_qa); // mydb.exec(test_qa);
// //test_qa.print(true); // test_qa.print(true);
// } catch (const string err) { // } catch (const string err) {
// cout << err << endl; // cout << err << endl;
// } // }
// }); // });
// // sleep(3);
// thread t3([&](){ // thread t3([&](){
// try { // try {
// sqlQA test_qa; // sqlQA test_qa;
// test_qa.select().from("users"); // test_qa.select().from("users");
// mydb.exec(test_qa); // mydb.exec(test_qa);
// //test_qa.print(true); // test_qa.print(true);
// } catch (const string err) { // } catch (const string err) {
// cout << err << endl; // cout << err << endl;
// } // }
// }); // });
// // sleep(1);
// thread t4([&](){ // thread t4([&](){
// try { // try {
// sqlQA test_qa; // sqlQA test_qa;
// test_qa.select().from("records").where("enabled = 1"); // test_qa.select().from("records").where("enabled = 1");
// mydb.exec(test_qa); // mydb.exec(test_qa);
// //test_qa.print(true); // test_qa.print(true);
// } catch (const string err) { // } catch (const string err) {
// cout << err << endl; // cout << err << endl;
// } // }
@ -62,7 +72,7 @@ int main() {
// sqlQA test_qa; // sqlQA test_qa;
// test_qa.select().from("zones"); // test_qa.select().from("zones");
// mydb.exec(test_qa); // mydb.exec(test_qa);
// //test_qa.print(true); // test_qa.print(true);
// } catch (const string err) { // } catch (const string err) {
// cout << err << endl; // cout << err << endl;
// } // }
@ -73,13 +83,13 @@ int main() {
// sqlQA test_qa; // sqlQA test_qa;
// test_qa.select().from("users"); // test_qa.select().from("users");
// mydb.exec(test_qa); // mydb.exec(test_qa);
// // test_qa.print(true); // test_qa.print(true);
// } catch (const string err) { // } catch (const string err) {
// cout << err << endl; // cout << err << endl;
// } // }
// }); // });
t1.join(); // t1.join();
// t2.join(); // t2.join();
// t3.join(); // t3.join();
// t4.join(); // t4.join();
@ -87,39 +97,41 @@ int main() {
// t6.join(); // t6.join();
// one by one // one by one
// try { try {
// sqlQA test_qa; sqlQA test_qa;
// test_qa.select().from("records").where("enabled = 1"); test_qa.select().from("records").where("enabled = 1");
// mydb.exec(test_qa); mydb.exec(test_qa);
// test_qa.print(true); test_qa.print(true);
// } catch (const string err) { } catch (const string err) {
// cout << err << endl; cout << err << endl;
// } }
// try { try {
// sqlQA test_qa; sqlQA test_qa;
// test_qa.select().from("users"); test_qa.select().from("users");
// mydb.exec(test_qa); mydb.exec(test_qa);
// test_qa.print(true); test_qa.print(true);
// } catch (const string err) { } catch (const string err) {
// cout << err << endl; cout << err << endl;
// } }
// try { try {
// sqlQA test_qa; sqlQA test_qa;
// test_qa.select().from("users"); test_qa.select().from("users");
// mydb.exec(test_qa); mydb.exec(test_qa);
// test_qa.print(true); test_qa.print(true);
// } catch (const string err) { } catch (const string err) {
// cout << err << endl; cout << err << endl;
// } }
auto end = high_resolution_clock::now(); auto end = high_resolution_clock::now();
auto duration = duration_cast<microseconds>(end - start); auto duration = duration_cast<microseconds>(end - start);
cout << "-------------Izvršilo se za: " << (double)(duration.count() / 1000.0) << " ms"<< endl; cout << "-------------Izvršilo se za: " << (double)(duration.count() / 1000.0) << " ms"<< endl;
sleep(100);
} catch (const SQLException error) { } catch (const SQLException error) {
cout << error.what() << endl; cout << error.what() << endl;
@ -129,7 +141,6 @@ int main() {
cout << "Jebi ga" << endl; cout << "Jebi ga" << endl;
} }
sleep(100);
return 0; return 0;

BIN
test/test.o
View File

Binary file not shown.
Write Preview
Loading…
Cancel
Save