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gnrc_sixlowpan_frag_stats: initial import of frag statistics

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Martine Lenders 2019-04-09 12:53:44 +02:00 committed by Martine S. Lenders
parent 866b126f36
commit dca3408167
5 changed files with 50 additions and 0 deletions
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1
makefiles/pseudomodules.inc.mk
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@ -32,6 +32,7 @@ PSEUDOMODULES += gnrc_sixloenc
PSEUDOMODULES += gnrc_sixlowpan_border_router_default
PSEUDOMODULES += gnrc_sixlowpan_default
PSEUDOMODULES += gnrc_sixlowpan_frag_hint
PSEUDOMODULES += gnrc_sixlowpan_frag_stats
PSEUDOMODULES += gnrc_sixlowpan_iphc_nhc
PSEUDOMODULES += gnrc_sixlowpan_nd_border_router
PSEUDOMODULES += gnrc_sixlowpan_router

25
sys/include/net/gnrc/sixlowpan/frag.h
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@ -138,6 +138,31 @@ typedef struct {
#endif /* MODULE_GNRC_SIXLOWPAN_FRAG_HINT */
} gnrc_sixlowpan_msg_frag_t;
#if defined(MODULE_GNRC_SIXLOWPAN_FRAG_STATS) || DOXYGEN
/**
* @brief Statistics on fragmentation and reassembly
*
* @note Only available with the `gnrc_sixlowpan_frag_stats` module
*/
typedef struct {
unsigned rbuf_full; /**< counts the number of events where the
* reassembly buffer is full */
unsigned frag_full; /**< counts the number of events that there where
* no @ref gnrc_sixlowpan_msg_frag_t available */
#if defined(MODULE_GNRC_SIXLOWPAN_FRAG_VRB) || DOXYGEN
unsigned vrb_full; /**< counts the number of events where the virtual
* reassembly buffer is full */
#endif
} gnrc_sixlowpan_frag_stats_t;
/**
* @brief Get the current statistics on fragmentation and reassembly
*
* @return The current statistics on fragmentation and reassembly
*/
gnrc_sixlowpan_frag_stats_t *gnrc_sixlowpan_frag_stats_get(void);
#endif
/**
* @brief Allocates a @ref gnrc_sixlowpan_msg_frag_t object
*

3
sys/net/gnrc/network_layer/sixlowpan/frag/gnrc_sixlowpan_frag.c
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@ -274,6 +274,9 @@ gnrc_sixlowpan_msg_frag_t *gnrc_sixlowpan_msg_frag_get(void)
return &_fragment_msg[i];
}
}
#ifdef MODULE_GNRC_SIXLOWPAN_FRAG_STATS
gnrc_sixlowpan_frag_stats_get()->frag_full++;
#endif
return NULL;
}

16
sys/net/gnrc/network_layer/sixlowpan/frag/rbuf.c
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@ -82,6 +82,15 @@ enum {
RBUF_ADD_DUPLICATE,
};
#ifdef MODULE_GNRC_SIXLOWPAN_FRAG_STATS
static gnrc_sixlowpan_frag_stats_t _stats;
gnrc_sixlowpan_frag_stats_t *gnrc_sixlowpan_frag_stats_get(void)
{
return &_stats;
}
#endif
static int _check_fragments(gnrc_sixlowpan_rbuf_base_t *entry,
size_t frag_size, size_t offset)
{
@ -348,8 +357,15 @@ static gnrc_sixlowpan_rbuf_t *_rbuf_get(const void *src, size_t src_len,
gnrc_pktbuf_release(oldest->pkt);
rbuf_rm(oldest);
res = oldest;
#if GNRC_SIXLOWPAN_FRAG_RBUF_AGGRESSIVE_OVERRIDE && \
defined(MODULE_GNRC_SIXLOWPAN_FRAG_STATS)
_stats.rbuf_full++;
#endif
}
else {
#ifdef MODULE_GNRC_SIXLOWPAN_FRAG_STATS
_stats.rbuf_full++;
#endif
return NULL;
}
}

5
sys/net/gnrc/network_layer/sixlowpan/frag/vrb/gnrc_sixlowpan_frag_vrb.c
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@ -73,6 +73,11 @@ gnrc_sixlowpan_frag_vrb_t *gnrc_sixlowpan_frag_vrb_add(
break;
}
}
#ifdef MODULE_GNRC_SIXLOWPAN_FRAG_STATS
if (vrbe == NULL) {
gnrc_sixlowpan_frag_stats_get()->vrb_full++;
}
#endif
return vrbe;
}