Snigdha-OS/snigdhaos-blackbox
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eshanized
2024-12-20 19:28:34 +05:30
parent daf8e45f8c
commit 11356f03d2
1 changed files with 29 additions and 7 deletions
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38
qt/snigdhaosblackbox.cpp
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@@ -42,31 +42,53 @@ SnigdhaOSBlackbox::~SnigdhaOSBlackbox()
}
void SnigdhaOSBlackbox::doInternetUpRequest() {
// Create a new QNetworkAccessManager instance for managing the network request.
// The 'this' pointer ensures the manager is associated with the current object (SnigdhaOSBlackbox).
QNetworkAccessManager* network_manager = new QNetworkAccessManager(this);
// Send a HEAD request to the specified URL to check if the internet connection is up.
// The HEAD request is used to check the server status without downloading the full content.
QNetworkReply* network_reply = network_manager->head(QNetworkRequest(QString(INTERNET_CHECK_URL)));
// Create a new QTimer instance that will be used to implement a timeout for the network request.
QTimer* timer = new QTimer(this);
timer->setSingleShot(true);
timer->start(5000); //5 sec
// Set the timer to single-shot mode, so it will only trigger once after the specified interval (5 seconds).
timer->setSingleShot(true);
// Start the timer with a 5-second interval (5000 milliseconds).
timer->start(5000); // 5 sec
// Connect the timer's timeout signal to a lambda function.
// This function will execute if the timer expires (i.e., after 5 seconds), aborting the network request.
connect(timer, &QTimer::timeout, this, [this, timer, network_reply, network_manager]() {
// Clean up the resources associated with the timer, network reply, and network manager.
// Deleting them to prevent memory leaks.
timer->deleteLater();
network_reply->abort();
network_reply->deleteLater();
network_manager->deleteLater();
network_reply->abort(); // Abort the network request as the timeout occurred.
network_reply->deleteLater(); // Delete the network reply object to free resources.
network_manager->deleteLater(); // Delete the network manager object to free resources.
// Retry the internet check by calling this function recursively.
doInternetUpRequest();
});
// Connect the network reply's finished signal to a lambda function that handles the network reply.
connect(network_reply, &QNetworkReply::finished, this, [this, timer, network_reply, network_manager]() {
// Stop the timer once the network reply is finished, as we no longer need to wait for the timeout.
timer->stop();
// Clean up the resources associated with the timer, network reply, and network manager after the request finishes.
timer->deleteLater();
network_reply->deleteLater();
network_manager->deleteLater();
if (network_reply->error() == network_reply->NoError){
// Check if there was no error with the network reply (i.e., the internet is up).
if (network_reply->error() == network_reply->NoError) {
// If there was no error, update the state to indicate that the update process can begin.
updateState(State::UPDATE);
}
else {
} else {
// If there was an error, retry the internet check by calling this function recursively.
doInternetUpRequest();
}
});