dragonpilot - 基於 openpilot 的開源駕駛輔助系統
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#include "selfdrive/ui/qt/request_repeater.h"
RequestRepeater::RequestRepeater(QObject *parent, const QString &requestURL, const QString &cacheKey,
int period, bool while_onroad) : HttpRequest(parent) {
timer = new QTimer(this);
timer->setTimerType(Qt::VeryCoarseTimer);
QObject::connect(timer, &QTimer::timeout, [=]() {
if ((!QUIState::ui_state.scene.started || while_onroad) && QUIState::ui_state.awake && !active()) {
sendRequest(requestURL);
}
});
timer->start(period * 1000);
if (!cacheKey.isEmpty()) {
prevResp = QString::fromStdString(params.get(cacheKey.toStdString()));
if (!prevResp.isEmpty()) {
QTimer::singleShot(500, [=]() { emit receivedResponse(prevResp); });
}
QObject::connect(this, &HttpRequest::receivedResponse, [=](const QString &resp) {
if (resp != prevResp) {
params.put(cacheKey.toStdString(), resp.toStdString());
prevResp = resp;
}
});
}
}