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modified to support confirmed messages. Verified with ReadProperty request.

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This commit is contained in:
skarg
2005-05-25 00:42:21 +00:00
parent d13c9172fa
commit 4c8f288b4b
9 changed files with 340 additions and 37 deletions
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bacnet-stack/tsm.c
+62 -21
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@@ -44,6 +44,8 @@
#include "tsm.h"
#include "config.h"
#include "device.h"
#include "handlers.h"
#include "address.h"
// Transaction State Machine
// Really only needed for segmented messages
@@ -135,40 +137,79 @@ uint8_t tsm_next_free_invokeID(void)
}
// returns 0 if there are no free transactions
uint8_t tsm_request_confirmed_unsegmented_transaction(
void tsm_set_confirmed_unsegmented_transaction(
uint8_t invokeID,
BACNET_ADDRESS *dest,
uint8_t *pdu,
uint16_t pdu_len)
{
uint8_t invokeID = 0;
unsigned i = 0, j = 0;
uint8_t index;
// see if there is a free transaction
for (i = 0; i < MAX_TSM_TRANSACTIONS; i++)
if (invokeID)
{
if (TSM_List[i].state == TSM_STATE_IDLE)
index = tsm_find_invokeID_index(invokeID);
if (index < MAX_TSM_TRANSACTIONS)
{
// see if the current invoke id is free
invokeID = tsm_next_free_invokeID();
if (invokeID)
// assign the transaction
TSM_List[index].state = TSM_STATE_AWAIT_CONFIRMATION;
TSM_List[index].RetryCount = Device_Number_Of_APDU_Retries();
// start the timer
TSM_List[index].RequestTimer = Device_APDU_Timeout();
// copy the data
for (j = 0; j < pdu_len; j++)
{
// assign the transaction
TSM_List[i].state = TSM_STATE_AWAIT_CONFIRMATION;
TSM_List[i].RetryCount = Device_Number_Of_APDU_Retries();
// start the timer
TSM_List[i].RequestTimer = Device_APDU_Timeout();
// copy the data
for (j = 0; j < pdu_len; j++)
{
TSM_List[i].pdu[j] = pdu[j];
}
memmove(&TSM_List[i].dest,dest,sizeof(TSM_List[i].dest));
TSM_List[index].pdu[j] = pdu[j];
}
break;
TSM_List[index].pdu_len = pdu_len;
address_copy(&TSM_List[i].dest,dest);
}
}
return invokeID;
return;
}
// called once a millisecond
void tsm_timer_milliseconds(uint16_t milliseconds)
{
unsigned i = 0; // counter
int bytes_sent = 0;
for (i = 0; i < MAX_TSM_TRANSACTIONS; i++)
{
if (TSM_List[i].state == TSM_STATE_AWAIT_CONFIRMATION)
{
if (TSM_List[i].RequestTimer > milliseconds)
TSM_List[i].RequestTimer -= milliseconds;
else
TSM_List[i].RequestTimer = 0;
}
// timeout. retry?
if (TSM_List[i].RequestTimer == 0)
{
TSM_List[i].RetryCount--;
TSM_List[i].RequestTimer = Device_APDU_Timeout();
if (TSM_List[i].RetryCount)
{
bytes_sent = handler_send_pdu(
&TSM_List[i].dest, // destination address
&TSM_List[i].pdu[0],
TSM_List[i].pdu_len); // number of bytes of data
}
else
TSM_List[i].state = TSM_STATE_IDLE;
}
}
}
void tsm_free_invoke_id(uint8_t invokeID)
{
uint8_t index;
index = tsm_find_invokeID_index(invokeID);
if (index < MAX_TSM_TRANSACTIONS)
TSM_List[index].state = TSM_STATE_IDLE;
}
#ifdef TEST