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add atomic variable to check application ready. #18

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add atomic variable to check application ready. #18

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14 changes: 10 additions & 4 deletions src/plugins/servicebackends/windows/windowsservicebackend.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -52,6 +52,7 @@ Q_LOGGING_CATEGORY(logBackend, "qt.service.plugin.windows.backend")
QPointer<WindowsServiceBackend> WindowsServiceBackend::_backendInstance;

static QString xPath;
static std::atomic<bool> isApplicationReady{false};

WindowsServiceBackend::WindowsServiceBackend(Service *service) :
ServiceBackend{service}
Expand Down Expand Up @@ -130,6 +131,7 @@ int WindowsServiceBackend::runService(int &argc, char **argv, int flags)

//execute the app
qCDebug(logBackend) << "running application";
isApplicationReady = true;
_status.dwServiceSpecificExitCode = app.exec();
if(_status.dwServiceSpecificExitCode != EXIT_SUCCESS)
_status.dwWin32ExitCode = ERROR_SERVICE_SPECIFIC_ERROR;
Expand Down Expand Up @@ -230,10 +232,14 @@ void WindowsServiceBackend::serviceMain(DWORD dwArgc, wchar_t **lpszArgv)
lock.unlock();

// wait for the mainthread to finish startup, then register the service handler
lock.relock();
qCDebug(logBackend) << "wait for main thread to finish startup";
_backendInstance->_startCondition.wait(&_backendInstance->_svcLock);
lock.unlock();
// we wait until variable isApplicationReady become true
while (!isApplicationReady)
{
lock.relock();
qCDebug(logBackend) << "wait for main thread to finish startup";
_backendInstance->_startCondition.wait(&_backendInstance->_svcLock, 5000);
lock.unlock();
}

// handle the start event
qCDebug(logBackend) << "handle service start event";
Expand Down