RIOT-OS/RIOT
RIOT-OS/RIOT
1
0
Fork 0
mirror of https://github.com/RIOT-OS/RIOT.git synced 2024-12-29 04:50:03 +01:00
Code Releases Activity

Merge pull request #4267 from authmillenon/gnrc_pktbuf_static/enh/max_byte_counter

Browse Source 
gnrc_pktbuf_static: add stat variable for maximum packet buffer byte
This commit is contained in:
Peter Kietzmann 2016-01-26 18:45:49 +01:00
commit 4d7c068e0d
1 changed files with 12 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
sys/net/gnrc/pktbuf_static/gnrc_pktbuf_static.c
View File

@ -45,6 +45,11 @@ static mutex_t _mutex = MUTEX_INIT;
static uint8_t _pktbuf[GNRC_PKTBUF_SIZE];
static _unused_t *_first_unused;
#ifdef DEVELHELP
/* maximum number of bytes allocated */
static uint16_t max_byte_count = 0;
#endif
/* internal gnrc_pktbuf functions */
static gnrc_pktsnip_t *_create_snip(gnrc_pktsnip_t *next, void *data, size_t size,
gnrc_nettype_t type);
@ -296,6 +301,7 @@ void gnrc_pktbuf_stats(void)
printf("packet buffer: first byte: %p, last byte: %p (size: %u)\n",
(void *)&_pktbuf[0], (void *)&_pktbuf[GNRC_PKTBUF_SIZE], GNRC_PKTBUF_SIZE);
printf(" position of last byte used: %" PRIu16 "\n", max_byte_count);
if (ptr == NULL) { /* packet buffer is completely full */
_print_chunk(chunk, GNRC_PKTBUF_SIZE, count++);
}
@ -424,6 +430,12 @@ static void *_pktbuf_alloc(size_t size)
new->next = ptr->next;
new->size = ptr->size - size;
}
#ifdef DEVELHELP
uint16_t last_byte = (uint16_t)((((uint8_t *)ptr) + size) - &(_pktbuf[0]));
if (last_byte > max_byte_count) {
max_byte_count = last_byte;
}
#endif
return (void *)ptr;
}