On 7/7/06, Shafiq Hashmi <[EMAIL PROTECTED]> wrote:
>
> Hello all,
>
> I want to implement a timer function for a packet to be resent if that same
> timer expires for not getting the respective ACK.
>
> Can anybody help me to get a simple example so that I can use that function.
> Whatever I got on the net or on this forum is difficult to comprehend. I
> would really appreciate for the help.
>
> Thanx
> Shafiq
>
>
Hello Shafiq,
An example from UM-OLSR :-) which I renamed to RHARP protocol *_*
In .h file:
// ==========
#include <timer-handler.h>
/// Timer for sending an enqued message.
class RHARP_MsgTimer : public TimerHandler {
public:
RHARP_MsgTimer(RHARP* agent) : TimerHandler() {
agent_ = agent;
}
protected:
RHARP* agent_; ///< RHARP agent which created the
timer.
virtual void expire(Event* e);
};
// ==========
In .cc file:
// ==========
void
RHARP_MsgTimer::expire(Event* e) {
agent_->send_pkt(); // do anything you want here, check the reception
of ACK for instance
delete this;
}
// example to run this timer:
RHARP_MsgTimer* timer = new RHARP_MsgTimer(this);
timer->resched(delay);
// ==========
in this example, agent_->send_pkt(); will be called after a delay "delay"
Good luck ;-)
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