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Query, explain, cancel buttons are now enabled/disabled when the state of the connection changes.

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This commit is contained in:
Eelke Klein 2017-01-15 21:38:07 +01:00
parent d19741f111
commit a32e2c83ca
3 changed files with 32 additions and 14 deletions
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11
asyncdbconnection.cpp
View file

@ -1,5 +1,6 @@
#include "asyncdbconnection.h" #include "asyncdbconnection.h"
#include "waithandlelist.h" #include "waithandlelist.h"
#include "scopeguard.h"
#include <chrono> #include <chrono>
ASyncDBConnection::ASyncDBConnection() ASyncDBConnection::ASyncDBConnection()
@ -7,6 +8,11 @@ ASyncDBConnection::ASyncDBConnection()
} }
ASyncDBConnection::State ASyncDBConnection::state() const
{
return m_threadData.m_state;
}
//void ASyncDBConnection::setupConnection(const std::string &connstring) //void ASyncDBConnection::setupConnection(const std::string &connstring)
//{ //{
// if (m_thread.joinable()) { // if (m_thread.joinable()) {
@ -69,6 +75,10 @@ ASyncDBConnection::Thread::Thread()
void ASyncDBConnection::Thread::run() void ASyncDBConnection::Thread::run()
{ {
m_terminated = false; m_terminated = false;
SCOPE_EXIT {
m_state = State::NotConnected;
m_terminated = true;
};
while (!terminateRequested) { while (!terminateRequested) {
// make or recover connection // make or recover connection
@ -94,7 +104,6 @@ void ASyncDBConnection::Thread::run()
break; break;
} }
} }
m_terminated = true;
// close connection // close connection
} }

3
asyncdbconnection.h
View file

@ -27,6 +27,7 @@ public:
ASyncDBConnection(); ASyncDBConnection();
State state() const;
// void setupConnection(const std::string &connstring); // void setupConnection(const std::string &connstring);
void setupConnection(const ConnectionConfig &config); void setupConnection(const ConnectionConfig &config);
void closeConnection(); void closeConnection();
@ -81,6 +82,7 @@ private:
// std::string m_initString; // std::string m_initString;
ConnectionConfig m_config; ConnectionConfig m_config;
State m_state = State::NotConnected;
Thread(); Thread();
@ -94,7 +96,6 @@ private:
private: private:
State m_state = State::NotConnected;
Win32Event m_stopEvent; Win32Event m_stopEvent;
Pgsql::Connection m_connection; Pgsql::Connection m_connection;

8
mainwindow.cpp
View file

@ -177,6 +177,11 @@ void MainWindow::connectionStateChanged(ASyncDBConnection::State state)
} }
addLog(status_str); addLog(status_str);
statusBar()->showMessage(status_str); statusBar()->showMessage(status_str);
bool connected = ASyncDBConnection::State::Connected == state;
ui->actionExecute_SQL->setEnabled(connected);
ui->actionExplain_Analyze->setEnabled(connected);
ui->actionCancel->setEnabled(ASyncDBConnection::State::QuerySend == state);
} }
void MainWindow::startConnect() void MainWindow::startConnect()
@ -188,12 +193,14 @@ void MainWindow::startConnect()
void MainWindow::performQuery() void MainWindow::performQuery()
{ {
if (m_dbConnection.state() == ASyncDBConnection::State::Connected) {
addLog("Query clicked"); addLog("Query clicked");
ui->ResultView->setModel(nullptr); ui->ResultView->setModel(nullptr);
resultModel.reset(); resultModel.reset();
ui->messagesEdit->clear(); ui->messagesEdit->clear();
QString command = ui->queryEdit->toPlainText(); QString command = ui->queryEdit->toPlainText();
std::string cmd = command.toUtf8().data(); std::string cmd = command.toUtf8().data();
startTimer(); startTimer();
@ -202,6 +209,7 @@ void MainWindow::performQuery()
{ {
QueueTask([this, res]() { query_ready(res); }); QueueTask([this, res]() { query_ready(res); });
}); });
}
} }
void MainWindow::query_ready(std::shared_ptr<Pgsql::Result> dbres) void MainWindow::query_ready(std::shared_ptr<Pgsql::Result> dbres)