You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
52 lines
1.9 KiB
52 lines
1.9 KiB
/*
|
|
Copyright (c) 2013 Martin Sustrik All rights reserved.
|
|
|
|
Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
of this software and associated documentation files (the "Software"),
|
|
to deal in the Software without restriction, including without limitation
|
|
the rights to use, copy, modify, merge, publish, distribute, sublicense,
|
|
and/or sell copies of the Software, and to permit persons to whom
|
|
the Software is furnished to do so, subject to the following conditions:
|
|
|
|
The above copyright notice and this permission notice shall be included
|
|
in all copies or substantial portions of the Software.
|
|
|
|
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
|
THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
|
FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
|
|
IN THE SOFTWARE.
|
|
*/
|
|
|
|
#ifndef NN_BACKOFF_INCLUDED
|
|
#define NN_BACKOFF_INCLUDED
|
|
|
|
#include "../../aio/timer.h"
|
|
|
|
/* Timer with exponential backoff. Actual wating time is (2^n-1)*minivl,
|
|
meaning that first wait is 0 ms long, second one is minivl ms long etc. */
|
|
|
|
#define NN_BACKOFF_TIMEOUT NN_TIMER_TIMEOUT
|
|
#define NN_BACKOFF_STOPPED NN_TIMER_STOPPED
|
|
|
|
struct nn_backoff {
|
|
struct nn_timer timer;
|
|
int minivl;
|
|
int maxivl;
|
|
int n;
|
|
};
|
|
|
|
void nn_backoff_init (struct nn_backoff *self, int src, int minivl, int maxivl,
|
|
struct nn_fsm *owner);
|
|
void nn_backoff_term (struct nn_backoff *self);
|
|
|
|
int nn_backoff_isidle (struct nn_backoff *self);
|
|
void nn_backoff_start (struct nn_backoff *self);
|
|
void nn_backoff_stop (struct nn_backoff *self);
|
|
|
|
void nn_backoff_reset (struct nn_backoff *self);
|
|
|
|
#endif
|
|
|
|
|