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Added MS/TP statistics. Work in progress.

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This commit is contained in:
skarg
2009-07-27 22:37:04 +00:00
parent adf0f282e7
commit 53fb6ee291
1 changed files with 165 additions and 1 deletions
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bacnet-stack/demo/mstpcap/main.c
+165 -1
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@@ -60,6 +60,164 @@ static volatile struct mstp_port_struct_t MSTP_Port;
static uint8_t RxBuffer[MAX_MPDU];
static uint8_t TxBuffer[MAX_MPDU];
/* statistics derived from monitoring the network for each node */
struct mstp_statistics
{
/* counts how many times the node passes the token */
uint32_t token_count;
/* counts how many times the node gets a second token */
uint32_t token_retries;
/* delay after poll for master */
uint32_t tusage_timeout;
/* highest number MAC during poll for master */
uint8_t max_master;
/* how long it takes a node to pass the token */
uint32_t token_reply_min;
uint32_t token_reply_max;
/* how long it takes a node to reply to PFM */
uint32_t pfm_reply_min;
uint32_t pfm_reply_max;
/* how long it takes a node to reply to DER */
uint32_t der_reply_min;
uint32_t der_reply_max;
};
static struct mstp_statistics MSTP_Statistics[256];
static uint32_t timeval_diff_ms(
struct timeval *old,
struct timeval *now)
{
uint32_t ms = 0;
/* convert to milliseconds */
ms = (now->tv_sec-old->tv_sec)*1000+
(now->tv_usec-old->tv_usec)/1000;
return ms;
}
static void packet_statistics(
struct timeval *tv,
volatile struct mstp_port_struct_t *mstp_port)
{
static struct timeval old_tv = {0};
static uint8_t old_frame = 255;
static uint8_t old_src = 255;
static uint8_t old_dst = 255;
uint8_t frame, src, dst;
uint32_t delta;
dst = mstp_port->DestinationAddress;
src = mstp_port->SourceAddress;
frame = mstp_port->FrameType;
switch (frame) {
case FRAME_TYPE_TOKEN:
MSTP_Statistics[src].token_count++;
if ((old_frame == frame) && (old_dst == dst)) {
/* repeated token */
MSTP_Statistics[dst].token_retries++;
}
if (old_frame == frame) {
/* token to token response time */
delta = timeval_diff_ms(&old_tv, tv);
if (delta) {
/* only count times that are non-zero */
if (MSTP_Statistics[src].token_reply_min == 0) {
MSTP_Statistics[src].token_reply_min = delta;
} else if (delta < MSTP_Statistics[src].token_reply_min) {
MSTP_Statistics[src].token_reply_min = delta;
}
if (delta > MSTP_Statistics[src].token_reply_max) {
MSTP_Statistics[src].token_reply_max = delta;
}
}
}
break;
case FRAME_TYPE_POLL_FOR_MASTER:
if (dst > MSTP_Statistics[src].max_master) {
MSTP_Statistics[src].max_master = dst;
}
break;
case FRAME_TYPE_REPLY_TO_POLL_FOR_MASTER:
if (old_frame == FRAME_TYPE_POLL_FOR_MASTER) {
delta = timeval_diff_ms(&old_tv, tv);
if (delta) {
if (MSTP_Statistics[src].pfm_reply_min == 0) {
MSTP_Statistics[src].pfm_reply_min = delta;
} else if (delta < MSTP_Statistics[src].pfm_reply_min) {
MSTP_Statistics[src].pfm_reply_min = delta;
}
if (delta > MSTP_Statistics[src].pfm_reply_max) {
MSTP_Statistics[src].pfm_reply_max = delta;
}
}
}
break;
case FRAME_TYPE_TEST_REQUEST:
break;
case FRAME_TYPE_TEST_RESPONSE:
break;
case FRAME_TYPE_BACNET_DATA_EXPECTING_REPLY:
break;
case FRAME_TYPE_BACNET_DATA_NOT_EXPECTING_REPLY:
break;
case FRAME_TYPE_REPLY_POSTPONED:
break;
default:
break;
}
/* update the old variables */
old_dst = dst;
old_src = src;
old_frame = frame;
old_tv.tv_sec = tv->tv_sec;
old_tv.tv_usec = tv->tv_usec;
}
static void packet_statistics_save(void)
{
unsigned i; /* loop counter */
fprintf(stdout, "\r\n");
for (i = 0; i < 256; i++) {
if (MSTP_Statistics[i].token_count) {
fprintf(stdout, "%u", i);
fprintf(stdout, "\ttc=%lu\ttr=%lu\ttu=%lu\tmm=%u",
(long unsigned int)MSTP_Statistics[i].token_count,
(long unsigned int)MSTP_Statistics[i].token_retries,
(long unsigned int)MSTP_Statistics[i].tusage_timeout,
(unsigned)MSTP_Statistics[i].max_master);
fprintf(stdout, "\ttr-max=%lu",
(long unsigned int)MSTP_Statistics[i].token_reply_max);
fprintf(stdout, "\trpfm-max=%lu",
(long unsigned int)MSTP_Statistics[i].pfm_reply_max);
fprintf(stdout, "\tder-max=%lu",
(long unsigned int)MSTP_Statistics[i].der_reply_max);
fprintf(stdout, "\r\n");
}
}
}
static void packet_statistics_clear(void)
{
unsigned i; /* loop counter */
for (i = 0; i < 256; i++) {
MSTP_Statistics[i].token_count = 0;
MSTP_Statistics[i].token_retries = 0;
MSTP_Statistics[i].tusage_timeout = 0;
MSTP_Statistics[i].max_master = 0;
MSTP_Statistics[i].token_reply_min = 0;
MSTP_Statistics[i].token_reply_max = 0;
MSTP_Statistics[i].pfm_reply_min = 0;
MSTP_Statistics[i].pfm_reply_max = 0;
MSTP_Statistics[i].der_reply_min = 0;
MSTP_Statistics[i].der_reply_max = 0;
}
}
static uint16_t Timer_Silence(
void)
{
@@ -171,6 +329,7 @@ static void write_received_packet(
gettimeofday(&tv, NULL);
ts_sec = tv.tv_sec;
ts_usec = tv.tv_usec;
packet_statistics(&tv, mstp_port);
(void) fwrite(&ts_sec, sizeof(ts_sec), 1, pFile);
(void) fwrite(&ts_usec, sizeof(ts_usec), 1, pFile);
if (mstp_port->DataLength) {
@@ -204,6 +363,7 @@ static void write_received_packet(
static void cleanup(
void)
{
packet_statistics_save();
if (pFile) {
fflush(pFile); /* stream pointer */
fclose(pFile); /* stream pointer */
@@ -217,7 +377,6 @@ static void sig_int(
{
(void) signo;
cleanup();
exit(0);
}
@@ -286,6 +445,9 @@ int main(
fprintf(stdout, "mstpcap: Using %s for capture at %ld bps.\n",
RS485_Interface(), (long) RS485_Get_Baud_Rate());
atexit(cleanup);
#if (!defined(_WIN32))
signal_init();
#endif
filename_create_new();
/* run forever */
for (;;) {
@@ -306,6 +468,8 @@ int main(
fprintf(stdout, "\r%hu packets", packet_count);
}
if (packet_count >= 65535) {
packet_statistics_save();
packet_statistics_clear();
filename_create_new();
packet_count = 0;
}