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gnrc_netif: allow for wait of minimum time between sends

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This commit is contained in:
Martine Lenders 2019-04-25 10:28:39 +02:00 committed by Martine S. Lenders
parent 6c895e1484
commit 488c47cbf3
2 changed files with 22 additions and 0 deletions
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11
sys/include/net/gnrc/netif/conf.h
View File

@ -137,6 +137,17 @@ extern "C" {
#define GNRC_NETIF_DEFAULT_HL (64U) /**< default hop limit */
#endif
/**
* @brief Minimum wait time in microseconds after a send operation
*
* @experimental
*
* This is purely meant as a debugging feature to slow down a radios sending.
*/
#ifndef GNRC_NETIF_MIN_WAIT_AFTER_SEND_US
#define GNRC_NETIF_MIN_WAIT_AFTER_SEND_US (0U)
#endif
#ifdef __cplusplus
}
#endif

11
sys/net/gnrc/netif/gnrc_netif.c
View File

@ -31,6 +31,7 @@
#include "fmt.h"
#include "log.h"
#include "sched.h"
#include "xtimer.h"
#include "net/gnrc/netif.h"
#include "net/gnrc/netif/internal.h"
@ -1314,6 +1315,9 @@ static void *_gnrc_netif_thread(void *args)
#endif
/* now let rest of GNRC use the interface */
gnrc_netif_release(netif);
#if (GNRC_NETIF_MIN_WAIT_AFTER_SEND_US > 0U)
xtimer_ticks32_t last_wakeup = xtimer_now();
#endif
while (1) {
DEBUG("gnrc_netif: waiting for incoming messages\n");
@ -1335,6 +1339,13 @@ static void *_gnrc_netif_thread(void *args)
else {
netif->stats.tx_bytes += res;
}
#endif
#if (GNRC_NETIF_MIN_WAIT_AFTER_SEND_US > 0U)
xtimer_periodic_wakeup(&last_wakeup,
GNRC_NETIF_MIN_WAIT_AFTER_SEND_US);
/* override last_wakeup in case last_wakeup +
* GNRC_NETIF_MIN_WAIT_AFTER_SEND_US was in the past */
last_wakeup = xtimer_now();
#endif
break;
case GNRC_NETAPI_MSG_TYPE_SET: