settimestamp.hh

// -*- c-basic-offset: 4 -*-
#ifndef CLICK_SETTIMESTAMP_HH
#define CLICK_SETTIMESTAMP_HH
#include <click/batchelement.hh>
CLICK_DECLS

/*
=c

SetTimestamp([TIMESTAMP, I<keyword> FIRST])

=s timestamps

store the time in the packet's timestamp annotation

=d

Store the specified TIMESTAMP in the packet's timestamp annotation. If
TIMESTAMP is not specified, then sets the annotation to the system time when
the packet arrived at the SetTimestamp element.

Keyword arguments are:

=over 8

=item FIRST

Boolean.  If true, then set the packet's "first timestamp" annotation, not its
timestamp annotation.  Default is false.

=back

=a StoreTimestamp, AdjustTimestamp, SetTimestampDelta, PrintOld */

class SetTimestamp : public BatchElement { public:

    SetTimestamp() CLICK_COLD;

    const char *class_name() const override		{ return "SetTimestamp"; }
    const char *port_count() const override		{ return PORTS_1_1; }
    int configure(Vector<String> &, ErrorHandler *) CLICK_COLD;

    Packet *simple_action(Packet *) override;
#if HAVE_BATCH
    PacketBatch *simple_action_batch(PacketBatch *) override;
#endif

  private:

    enum { ACT_NOW, ACT_TIME, ACT_FIRST_NOW, ACT_FIRST_TIME }; // order matters
    int _action;
    bool _per_batch;
    Timestamp _tv;

    inline void rmaction(Packet *);

};

CLICK_ENDDECLS
#endif