| 1 | /* |
| 2 | The software in this package is distributed under the GNU General |
| 3 | Public License version 2 (with a special exception described below). |
| 4 | |
| 5 | A copy of GNU General Public License (GPL) is included in this distribution, |
| 6 | in the file COPYING.GPL. |
| 7 | |
| 8 | As a special exception, if other files instantiate templates or use macros |
| 9 | or inline functions from this file, or you compile this file and link it |
| 10 | with other works to produce a work based on this file, this file |
| 11 | does not by itself cause the resulting work to be covered |
| 12 | by the GNU General Public License. |
| 13 | |
| 14 | However the source code for this file must still be made available |
| 15 | in accordance with section (3) of the GNU General Public License. |
| 16 | |
| 17 | This exception does not invalidate any other reasons why a work based |
| 18 | on this file might be covered by the GNU General Public License. |
| 19 | */ |
| 20 | #include "host/pinginterval.h" |
| 21 | |
| 22 | #include "boost_assert_handler.h" |
| 23 | |
| 24 | //----------------------------------------------------------------------------- |
| 25 | // PingInterval |
| 26 | //----------------------------------------------------------------------------- |
| 27 | |
| 28 | PingInterval::PingInterval( |
| 29 | PingIntervalType interval |
| 30 | ) : |
| 31 | OriginalInterval( interval ), |
| 32 | Interval( interval ) |
| 33 | { |
| 34 | BOOST_ASSERT( 0 < interval ); |
| 35 | } |
| 36 | |
| 37 | PingInterval::~PingInterval() |
| 38 | { |
| 39 | } |
| 40 | |
| 41 | PingInterval::operator PingIntervalType() const |
| 42 | { |
| 43 | BOOST_ASSERT( 0 < Interval ); |
| 44 | |
| 45 | return Interval; |
| 46 | } |
| 47 | |
| 48 | void PingInterval::back_to_original() |
| 49 | { |
| 50 | Interval = OriginalInterval; |
| 51 | |
| 52 | BOOST_ASSERT( 0 < Interval ); |
| 53 | } |
| 54 | |
| 55 | void PingInterval::speed_up() |
| 56 | { |
| 57 | BOOST_ASSERT( 0 < Interval ); |
| 58 | |
| 59 | if ( can_speed_up() ) |
| 60 | { |
| 61 | Interval = Interval / 2; |
| 62 | } |
| 63 | |
| 64 | if ( Interval < 1 ) |
| 65 | { |
| 66 | Interval = 1; |
| 67 | } |
| 68 | |
| 69 | BOOST_ASSERT( 0 < Interval ); |
| 70 | } |
| 71 | |
| 72 | /** returns true if have not speeded up yet */ |
| 73 | bool PingInterval::can_speed_up() const |
| 74 | { |
| 75 | return Interval == OriginalInterval; |
| 76 | } |