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/* -*-c-*- */
/* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see: <http://www.gnu.org/licenses/>
*/
/* ---------------------------- included header files ---------------------- */
#include "config.h"
#include <stdio.h>
#include "safemalloc.h"
#include "timeout.h"
/* ---------------------------- local definitions -------------------------- */
/* ---------------------------- local macros ------------------------------- */
/* ---------------------------- imports ------------------------------------ */
/* ---------------------------- included code files ------------------------ */
/* ---------------------------- local types -------------------------------- */
/* ---------------------------- forward declarations ----------------------- */
/* ---------------------------- local variables ---------------------------- */
/* ---------------------------- exported variables (globals) --------------- */
/* ---------------------------- local functions ---------------------------- */
/* ---------------------------- interface functions ------------------------ */
timeout_t *timeout_create(
int n_timeouts)
{
timeout_t *to;
if (n_timeouts < 0 || n_timeouts > TIMEOUT_MAX_TIMEOUTS)
{
return NULL;
}
to = fxcalloc(1, sizeof(timeout_t));
to->n_timeouts = n_timeouts;
to->timeouts = fxcalloc(1, n_timeouts * sizeof(timeout_time_t));
return to;
}
void timeout_destroy(
timeout_t *to)
{
if (to == NULL)
{
return;
}
if (to->timeouts != NULL)
{
free(to->timeouts);
}
free(to);
return;
}
timeout_mask_t timeout_tick(
timeout_t *to, timeout_time_t n_ticks)
{
timeout_mask_t mask;
int i;
if (n_ticks <= 0)
{
return 0;
}
for (i = 0, mask = 0; i < to->n_timeouts; i++)
{
if (to->timeouts[i] > n_ticks)
{
to->timeouts[i] -= n_ticks;
}
else if (to->timeouts[i] > 0)
{
to->timeouts[i] = 0;
mask |= 1 << i;
}
}
return mask;
}
void timeout_rewind(
timeout_t *to, timeout_mask_t mask, timeout_time_t ticks_before_alarm)
{
int i;
if (ticks_before_alarm < 0)
{
return;
}
for (i = 0; i < to->n_timeouts; i++)
{
if (mask & (1 << i))
{
to->timeouts[i] = ticks_before_alarm;
}
}
return;
}
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