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refactored the Who-Is and I-Am handling, and cleaned up some comments.

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This commit is contained in:
skarg
2006-02-20 16:17:46 +00:00
parent 16c2545f45
commit 676ecf77a2
9 changed files with 149 additions and 188 deletions
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bacnet-stack/demo/readfile/readfile.c
+32 -37
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@@ -23,7 +23,7 @@
*
*********************************************************************/
/* READFILE: command line tool that reads a file from a BACnet device. */
/* command line tool that sends a BACnet service, and displays the reply */
#include <stddef.h>
#include <stdint.h>
#include <stdio.h>
@@ -335,43 +335,38 @@ int main(int argc, char *argv[])
last_seconds) * 1000));
if (End_Of_File_Detected || Error_Detected)
break;
if (I_Am_Request) {
I_Am_Request = false;
iam_send(&Handler_Transmit_Buffer[0]);
} else {
/* wait until the device is bound, or timeout and quit */
found = address_bind_request(Target_Device_Object_Instance,
&max_apdu, &Target_Address);
if (found) {
/* calculate the smaller of our APDU size or theirs
and remove the overhead of the APDU (about 16 octets max).
note: we could fail if there is a bottle neck (router)
and smaller MPDU in betweeen. */
if (max_apdu < MAX_APDU)
my_max_apdu = max_apdu;
else
my_max_apdu = MAX_APDU;
requestedOctetCount = my_max_apdu - 16;
/* has the previous invoke id expired or returned?
note: invoke ID = 0 is invalid, so it will be idle */
if ((invoke_id == 0) || tsm_invoke_id_free(invoke_id)) {
if (invoke_id != 0)
fileStartPosition += requestedOctetCount;
/* we'll read the file in chunks
less than max_apdu to keep unsegmented */
invoke_id =
Send_Atomic_Read_File_Stream
(Target_Device_Object_Instance,
Target_File_Object_Instance, fileStartPosition,
requestedOctetCount);
Current_Invoke_ID = invoke_id;
}
} else {
/* increment timer - exit if timed out */
elapsed_seconds += (current_seconds - last_seconds);
if (elapsed_seconds > timeout_seconds)
break;
/* wait until the device is bound, or timeout and quit */
found = address_bind_request(Target_Device_Object_Instance,
&max_apdu, &Target_Address);
if (found) {
/* calculate the smaller of our APDU size or theirs
and remove the overhead of the APDU (about 16 octets max).
note: we could fail if there is a bottle neck (router)
and smaller MPDU in betweeen. */
if (max_apdu < MAX_APDU)
my_max_apdu = max_apdu;
else
my_max_apdu = MAX_APDU;
requestedOctetCount = my_max_apdu - 16;
/* has the previous invoke id expired or returned?
note: invoke ID = 0 is invalid, so it will be idle */
if ((invoke_id == 0) || tsm_invoke_id_free(invoke_id)) {
if (invoke_id != 0)
fileStartPosition += requestedOctetCount;
/* we'll read the file in chunks
less than max_apdu to keep unsegmented */
invoke_id =
Send_Atomic_Read_File_Stream
(Target_Device_Object_Instance,
Target_File_Object_Instance, fileStartPosition,
requestedOctetCount);
Current_Invoke_ID = invoke_id;
}
} else {
/* increment timer - exit if timed out */
elapsed_seconds += (current_seconds - last_seconds);
if (elapsed_seconds > timeout_seconds)
break;
}
/* keep track of time for next check */
last_seconds = current_seconds;