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This commit is contained in:
skarg
2008-08-05 13:53:57 +00:00
parent 10e74470a5
commit b310bd055a
13 changed files with 959 additions and 812 deletions
Download Patch File Download Diff File Expand all files Collapse all files
bacnet-stack/ports/linux/dlmstp.c
+36 -45
View File
@@ -127,7 +127,8 @@ int dlmstp_send_pdu(
packet.pdu_len = pdu_len;
memmove(&packet.pdu[0], &pdu[0], pdu_len);
memmove(&packet.address, dest, sizeof(packet.address));
rc = mq_send(NPDU_Transmit_Queue, (const char *)&packet, sizeof(packet), 0);
rc = mq_send(NPDU_Transmit_Queue, (const char *) &packet,
sizeof(packet), 0);
if (rc > 0)
bytes_sent = rc;
}
@@ -146,10 +147,10 @@ uint16_t dlmstp_receive(
uint16_t pdu_len = 0;
mqd_t received_bytes = 0;
DLMSTP_PACKET packet;
struct timespec queue_timeout = {0};
struct timespec queue_timeout = { 0 };
time_t epoch_time = 0;
unsigned msg_prio = 0;
char buffer[sizeof(struct dlmstp_packet)+1];
char buffer[sizeof(struct dlmstp_packet) + 1];
if (NPDU_Receive_Queue == -1) {
return 0;
@@ -166,13 +167,10 @@ uint16_t dlmstp_receive(
}
/* get current time */
epoch_time = time(NULL);
queue_timeout.tv_sec += epoch_time;
queue_timeout.tv_sec += epoch_time;
received_bytes = mq_timedreceive(
NPDU_Receive_Queue,
buffer,
sizeof(buffer),
&msg_prio,
received_bytes =
mq_timedreceive(NPDU_Receive_Queue, buffer, sizeof(buffer), &msg_prio,
&queue_timeout);
/* See if there is a problem */
@@ -182,10 +180,9 @@ uint16_t dlmstp_receive(
/* was immediately available for reading. */
if ((errno != EAGAIN) && (errno != ETIMEDOUT)) {
#if PRINT_ENABLED
fprintf(stderr, "MS/TP: NPDU Receive: %s\n",
strerror(errno));
fprintf(stderr, "MS/TP: NPDU Receive: %s\n", strerror(errno));
#endif
}
}
return 0;
}
@@ -193,7 +190,7 @@ uint16_t dlmstp_receive(
return 0;
/* copy the buffer into the PDU */
memmove(&packet,buffer,sizeof(packet));
memmove(&packet, buffer, sizeof(packet));
pdu_len = packet.pdu_len;
memmove(&pdu[0], &packet.pdu[0], pdu_len);
memmove(src, &packet.address, sizeof(packet.address));
@@ -285,7 +282,7 @@ uint16_t MSTP_Put_Receive(
pdu_len = sizeof(packet.pdu);
if (pdu_len) {
#if PRINT_ENABLED
fprintf(stderr,"MSTP: packet from FSM.\n");
fprintf(stderr, "MSTP: packet from FSM.\n");
#endif
MSTP_Packets++;
memmove(&packet.pdu[0], (void *) &mstp_port->InputBuffer[0], pdu_len);
@@ -293,7 +290,7 @@ uint16_t MSTP_Put_Receive(
packet.pdu_len = pdu_len;
/* ready is not used in this scheme */
packet.ready = true;
mq_send(NPDU_Receive_Queue, (const char *)&packet, sizeof(packet), 0);
mq_send(NPDU_Receive_Queue, (const char *) &packet, sizeof(packet), 0);
}
return pdu_len;
@@ -306,10 +303,10 @@ int dlmstp_get_transmit_packet(
unsigned timeout)
{ /* milliseconds to wait for a packet */
int received_bytes = 0; /* return value */
struct timespec queue_timeout = {0};
struct timespec queue_timeout = { 0 };
time_t epoch_time = 0;
unsigned msg_prio = 0;
char buffer[sizeof(struct dlmstp_packet)+1];
char buffer[sizeof(struct dlmstp_packet) + 1];
/* Make sure the socket is open */
if (NPDU_Transmit_Queue == -1)
@@ -325,13 +322,10 @@ int dlmstp_get_transmit_packet(
}
/* get current time */
epoch_time = time(NULL);
queue_timeout.tv_sec += epoch_time;
queue_timeout.tv_sec += epoch_time;
received_bytes = mq_timedreceive(
NPDU_Transmit_Queue,
buffer,
sizeof(buffer),
&msg_prio,
received_bytes =
mq_timedreceive(NPDU_Transmit_Queue, buffer, sizeof(buffer), &msg_prio,
&queue_timeout);
/* See if there is a problem */
@@ -341,13 +335,14 @@ int dlmstp_get_transmit_packet(
/* was immediately available for reading. */
if ((errno != EAGAIN) && (errno != ETIMEDOUT)) {
#if PRINT_ENABLED
fprintf(stderr, "MS/TP: Read error in Transmit_Client packet: %s\n",
fprintf(stderr,
"MS/TP: Read error in Transmit_Client packet: %s\n",
strerror(errno));
#endif
}
return 0;
}
memmove(packet,buffer,sizeof(packet));
memmove(packet, buffer, sizeof(packet));
return (received_bytes);
}
@@ -376,7 +371,7 @@ uint16_t MSTP_Get_Send(
return 0;
}
#if PRINT_ENABLED
fprintf(stderr,"MS/TP: sending packet to FSM.\n");
fprintf(stderr, "MS/TP: sending packet to FSM.\n");
#endif
/* convert the PDU into the MSTP Frame */
pdu_len = MSTP_Create_Frame(&mstp_port->OutputBuffer[0], /* <-- loading this */
@@ -521,23 +516,23 @@ uint16_t MSTP_Get_Reply(
/* is this the reply to the DER? */
matched =
dlmstp_compare_data_expecting_reply(&mstp_port->InputBuffer[0],
mstp_port->DataLength, mstp_port->SourceAddress,
&packet.pdu[0], packet.pdu_len,
&packet.address);
mstp_port->DataLength, mstp_port->SourceAddress, &packet.pdu[0],
packet.pdu_len, &packet.address);
if (matched) {
#if PRINT_ENABLED
fprintf(stderr,"MSTP: sending packet to FSM.\n");
fprintf(stderr, "MSTP: sending packet to FSM.\n");
#endif
/* convert the PDU into the MSTP Frame */
pdu_len = MSTP_Create_Frame(&mstp_port->OutputBuffer[0],
mstp_port->OutputBufferSize, packet.frame_type,
destination, mstp_port->This_Station, &packet.pdu[0],
packet.pdu_len);
pdu_len =
MSTP_Create_Frame(&mstp_port->OutputBuffer[0],
mstp_port->OutputBufferSize, packet.frame_type, destination,
mstp_port->This_Station, &packet.pdu[0], packet.pdu_len);
/* not used here, but setting it anyway */
packet.ready = false;
} else {
/* put it back into the queue */
(void)mq_send(NPDU_Transmit_Queue, (char *)&packet, sizeof(packet), 1);
(void) mq_send(NPDU_Transmit_Queue, (char *) &packet, sizeof(packet),
1);
}
return pdu_len;
@@ -687,27 +682,23 @@ bool dlmstp_init(
char mqname[32];
struct mq_attr mqattr;
mqattr.mq_flags = 0;
mqattr.mq_maxmsg = 5;
mqattr.mq_flags = 0;
mqattr.mq_maxmsg = 5;
mqattr.mq_msgsize = sizeof(struct dlmstp_packet);
/* create a queue for the NDPU data between MS/TP threads */
snprintf(mqname, sizeof(mqname), "/MSTP_Rx_%d", getpid());
NPDU_Transmit_Queue = mq_open(mqname,
O_RDWR | O_CREAT, 0600, &mqattr);
NPDU_Transmit_Queue = mq_open(mqname, O_RDWR | O_CREAT, 0600, &mqattr);
if (NPDU_Transmit_Queue == -1) {
#if PRINT_ENABLED
fprintf(stderr, "MS/TP: Create NPDU Transmit Queue %s: %s\n",
mqname,
fprintf(stderr, "MS/TP: Create NPDU Transmit Queue %s: %s\n", mqname,
strerror(errno));
#endif
}
snprintf(mqname, sizeof(mqname), "/MSTP_Tx_%d", getpid());
NPDU_Receive_Queue = mq_open(mqname,
O_RDWR | O_CREAT, 0600, &mqattr);
NPDU_Receive_Queue = mq_open(mqname, O_RDWR | O_CREAT, 0600, &mqattr);
if (NPDU_Receive_Queue == -1) {
#if PRINT_ENABLED
fprintf(stderr, "MS/TP: Create NPDU Receive Queue %s: %s\n",
mqname,
fprintf(stderr, "MS/TP: Create NPDU Receive Queue %s: %s\n", mqname,
strerror(errno));
#endif
}