mirror of
https://github.com/RIOT-OS/RIOT.git
synced 2024-12-29 04:50:03 +01:00
125 lines
3.6 KiB
C
125 lines
3.6 KiB
C
/*
|
|
* Copyright (C) 2017 INRIA
|
|
*
|
|
* This file is subject to the terms and conditions of the GNU Lesser
|
|
* General Public License v2.1. See the file LICENSE in the top level
|
|
* directory for more details.
|
|
*/
|
|
|
|
/**
|
|
* @ingroup net_gnrc_gomach
|
|
* @{
|
|
*
|
|
* @file
|
|
* @brief Implementation of GoMacH's timeout module.
|
|
*
|
|
* @author Shuguo Zhuo <shuguo.zhuo@inria.fr>
|
|
* @}
|
|
*/
|
|
|
|
#include <assert.h>
|
|
|
|
#include "xtimer.h"
|
|
#include "net/gnrc/gomach/gomach.h"
|
|
#include "net/gnrc/gomach/timeout.h"
|
|
#include "net/gnrc/gomach/types.h"
|
|
|
|
#define ENABLE_DEBUG 0
|
|
#include "debug.h"
|
|
|
|
/* Return index >= 0 if found, -ENONENT if not found. */
|
|
static int _gomach_find_timeout(gnrc_gomach_t *gomach, gnrc_gomach_timeout_type_t type)
|
|
{
|
|
assert(gomach);
|
|
|
|
for (unsigned i = 0; i < GNRC_GOMACH_TIMEOUT_COUNT; i++) {
|
|
if (gomach->timeouts[i].type == type) {
|
|
return i;
|
|
}
|
|
}
|
|
return -ENOENT;
|
|
}
|
|
|
|
inline bool gnrc_gomach_timeout_is_running(gnrc_netif_t *netif,
|
|
gnrc_gomach_timeout_type_t type)
|
|
{
|
|
assert(netif);
|
|
return (_gomach_find_timeout(&netif->mac.prot.gomach, type) >= 0);
|
|
}
|
|
|
|
bool gnrc_gomach_timeout_is_expired(gnrc_netif_t *netif, gnrc_gomach_timeout_type_t type)
|
|
{
|
|
assert(netif);
|
|
|
|
int index = _gomach_find_timeout(&netif->mac.prot.gomach, type);
|
|
if (index >= 0) {
|
|
if (netif->mac.prot.gomach.timeouts[index].expired) {
|
|
xtimer_remove(&(netif->mac.prot.gomach.timeouts[index].timer));
|
|
netif->mac.prot.gomach.timeouts[index].type = GNRC_GOMACH_TIMEOUT_DISABLED;
|
|
}
|
|
return netif->mac.prot.gomach.timeouts[index].expired;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
gnrc_gomach_timeout_t *_gomach_acquire_timeout(gnrc_netif_t *netif,
|
|
gnrc_gomach_timeout_type_t type)
|
|
{
|
|
assert(netif);
|
|
|
|
if (gnrc_gomach_timeout_is_running(netif, type)) {
|
|
return NULL;
|
|
}
|
|
|
|
for (unsigned i = 0; i < GNRC_GOMACH_TIMEOUT_COUNT; i++) {
|
|
if (netif->mac.prot.gomach.timeouts[i].type == GNRC_GOMACH_TIMEOUT_DISABLED) {
|
|
netif->mac.prot.gomach.timeouts[i].type = type;
|
|
return &netif->mac.prot.gomach.timeouts[i];
|
|
}
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
void gnrc_gomach_clear_timeout(gnrc_netif_t *netif, gnrc_gomach_timeout_type_t type)
|
|
{
|
|
assert(netif);
|
|
|
|
int index = _gomach_find_timeout(&netif->mac.prot.gomach, type);
|
|
if (index >= 0) {
|
|
xtimer_remove(&(netif->mac.prot.gomach.timeouts[index].timer));
|
|
netif->mac.prot.gomach.timeouts[index].type = GNRC_GOMACH_TIMEOUT_DISABLED;
|
|
netif->mac.prot.gomach.timeouts[index].expired = false;
|
|
}
|
|
}
|
|
|
|
void gnrc_gomach_set_timeout(gnrc_netif_t *netif,
|
|
gnrc_gomach_timeout_type_t type,
|
|
uint32_t offset)
|
|
{
|
|
assert(netif);
|
|
|
|
gnrc_gomach_timeout_t *timeout;
|
|
if ((timeout = _gomach_acquire_timeout(netif, type))) {
|
|
timeout->expired = false;
|
|
timeout->msg.type = GNRC_GOMACH_EVENT_TIMEOUT_TYPE;
|
|
timeout->msg.content.ptr = (void *) timeout;
|
|
xtimer_set_msg(&(timeout->timer), offset,
|
|
&(timeout->msg), netif->pid);
|
|
}
|
|
else {
|
|
DEBUG("[GoMacH]: Cannot set timeout, too many concurrent timeouts\n");
|
|
}
|
|
}
|
|
|
|
void gnrc_gomach_reset_timeouts(gnrc_netif_t *netif)
|
|
{
|
|
assert(netif);
|
|
|
|
for (unsigned i = 0; i < GNRC_GOMACH_TIMEOUT_COUNT; i++) {
|
|
if (netif->mac.prot.gomach.timeouts[i].type != GNRC_GOMACH_TIMEOUT_DISABLED) {
|
|
xtimer_remove(&(netif->mac.prot.gomach.timeouts[i].timer));
|
|
netif->mac.prot.gomach.timeouts[i].type = GNRC_GOMACH_TIMEOUT_DISABLED;
|
|
}
|
|
}
|
|
}
|