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#include <ctime>
/** Time out handler.
* Used to stop the current operation after too much time, or if the user
* requested cancellation.
*/
class timeoutHandler : public vmime::net::timeoutHandler {
public:
timeoutHandler()
: m_start(time(NULL)) {
}
bool isTimeOut() {
// This is a cancellation point: return true if you want to cancel
// the current operation. If you return true, handleTimeOut() will
// be called just after this, and before actually cancelling the
// operation
// 10 seconds timeout
return (time(NULL) - m_start) >= 10; // seconds
}
void resetTimeOut() {
// Called at the beginning of an operation (eg. connecting,
// a read() or a write() on a socket...)
m_start = time(NULL);
}
bool handleTimeOut() {
// If isTimeOut() returned true, this function will be called. This
// allows you to interact with the user, ie. display a prompt to
// know whether he wants to cancel the operation.
// If you return false here, the operation will be actually cancelled.
// If true, the time out is reset and the operation continues.
return false;
}
private:
time_t m_start;
};
class timeoutHandlerFactory : public vmime::net::timeoutHandlerFactory {
public:
vmime::shared_ptr <vmime::net::timeoutHandler> create() {
return vmime::make_shared <timeoutHandler>();
}
};
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