void *workThread(void *pObject)
{
int rv = 0;
int cnt;
bool bActivity = true;
short nPollCnt = 0;
char szResponse[ 32 ];
printf("can232obj in workThread\n");
CCAN232Obj * pcan232obj = (CCAN232Obj *) pObject;
if (NULL == pcan232obj) {
pthread_exit(&rv);
}
while (pcan232obj->m_can232obj.m_bRun) {
///////////////////////////////////////////////////////////////////////
// Receive
///////////////////////////////////////////////////////////////////////
LOCK_MUTEX(pcan232obj->m_can232ObjMutex);
// Noting to do if we should end...
if (!pcan232obj->m_can232obj.m_bRun) continue;
int cnt;
unsigned char c;
//printf("workThread - Receive\n");
c = pcan232obj->m_can232obj.m_comm.readChar(&cnt);
while (-1 != cnt) {
bActivity = true;
if (CAN232_STATE_NONE == pcan232obj->m_can232obj.m_state) {
if (('t' == c) || ('T' == c) || ('r' == c) || ('R' == c)) {
pcan232obj->m_can232obj.m_state = CAN232_STATE_MSG;
pcan232obj->m_can232obj.m_receiveBuf[ 0 ] = c;
pcan232obj->m_can232obj.m_cntRcv = 1;
}
} else if (CAN232_STATE_MSG == pcan232obj->m_can232obj.m_state) {
pcan232obj->m_can232obj.m_receiveBuf[ pcan232obj->m_can232obj.m_cntRcv++ ] = c;
if (0x0d == c) {
// One full message received If there is place in the queue
// add message to it
if (pcan232obj->m_can232obj.m_rcvList.nCount < CAN232_MAX_RCVMSG) {
PCANALMSG pMsg = new canalMsg;
pMsg->flags = 0;
if (NULL != pMsg) {
dllnode *pNode = new dllnode;
if (NULL != pNode) {
printf("workThread R - m_receiveBuf = [%s]\n", pcan232obj->m_can232obj.m_receiveBuf);
int cnt = pcan232obj->m_can232obj.m_cntRcv;
printf("workThread R - m_receiveBuf [");
for (int i = 0; i < cnt; i++) {
printf("%02X ", pcan232obj->m_can232obj.m_receiveBuf[i]);
}
printf("]\n");
if (!can232ToCanal(pcan232obj->m_can232obj.m_receiveBuf, pMsg)) {
pNode->pObject = pMsg;
dll_addNode(&pcan232obj->m_can232obj.m_rcvList, pNode);
// Update statistics
pcan232obj->m_can232obj.m_stat.cntReceiveData += pMsg->sizeData;
pcan232obj->m_can232obj.m_stat.cntReceiveFrames += 1;
printf("workThread R - RcvFrames = [%ld]\n\n", pcan232obj->m_can232obj.m_stat.cntReceiveFrames);
} else {
// Failed to translate message
printf("workThread R - Receive Failed to translate message\n");
delete pMsg;
delete pNode;
}
} else {
delete pMsg;
}
}
}
pcan232obj->m_can232obj.m_state = CAN232_STATE_NONE;
}
if (pcan232obj->m_can232obj.m_cntRcv > sizeof( pcan232obj->m_can232obj.m_receiveBuf)) {
// Problems start all over again
pcan232obj->m_can232obj.m_state = CAN232_STATE_NONE;
}
}
c = pcan232obj->m_can232obj.m_comm.readChar(&cnt);
} // while ( 0 != cnt )
UNLOCK_MUTEX(pcan232obj->m_can232ObjMutex);
///////////////////////////////////////////////////////////////////////
// Transmit
///////////////////////////////////////////////////////////////////////
//printf("workThread - Transmit\n");
LOCK_MUTEX(pcan232obj->m_can232ObjMutex);
// Is there something to transmit
// while ( ( NULL != pcan232obj->m_can232obj.m_sndList.pHead ) &&
// ( NULL != pcan232obj->m_can232obj.m_sndList.pHead->pObject ) ) {
if ((NULL != pcan232obj->m_can232obj.m_sndList.pHead) &&
(NULL != pcan232obj->m_can232obj.m_sndList.pHead->pObject)) {
char buf[ 80 ];
canalMsg msg;
bActivity = true;
memcpy(&msg, pcan232obj->m_can232obj.m_sndList.pHead->pObject, sizeof( canalMsg));
dll_removeNode(&pcan232obj->m_can232obj.m_sndList, pcan232obj->m_can232obj.m_sndList.pHead);
// Must be a valid standard id
if (!(msg.flags & CANAL_IDFLAG_EXTENDED) && (msg.id > 0x7ff)) {
msg.id &= 0x7ff;
};
// Must be a valid extended id
if ((msg.flags & CANAL_IDFLAG_EXTENDED) && (msg.id > 0x1fffffff)) {
msg.id &= 0x1fffffff;
}
// Currently there is a bug in ice old asm can232 tranceiver, and allow only small hex digits
if (msg.flags & CANAL_IDFLAG_EXTENDED) {
sprintf(buf, "T%8.8lx%i", msg.id, msg.sizeData);
} else {
sprintf(buf, "t%3.3lx%i", msg.id, msg.sizeData);
}
if (msg.sizeData) {
char hex[5];
for (int i = 0; i < msg.sizeData; i++) {
sprintf(hex, "%2.2X", msg.data[i]);
//sprintf( hex, "%02.2x", msg.data[i] );
strcat(buf, hex);
}
strcat(buf, "\r");
}
// Send the data
pcan232obj->m_can232obj.m_comm.comm_puts(buf, strlen(buf), true);
printf("workThread T - Write [");
for (int i = 0; i < strlen(buf); i++) {
if (buf[i] == 0x0D) {
printf("[CR]");
} else {
printf("%c", buf[i]);
}
}
printf("]\n");
pcan232obj->m_can232obj.m_comm.comm_gets(szResponse, sizeof( szResponse), 10000);
printf("workThread T - Read [");
for (int i = 0; i < strlen(szResponse); i++) {
if (szResponse[i] == 0x0D) {
printf("[CR]");
} else {
printf("%c", szResponse[i]);
}
}
printf("]\n\n");
// needed !! At least at 19200 baud
SLEEP(100);
// Update statistics
pcan232obj->m_can232obj.m_stat.cntTransmitData += msg.sizeData;
pcan232obj->m_can232obj.m_stat.cntTransmitFrames += 1;
//} // while there is something to transmit
} // if there is something to transmit
// If not in autopoll mode we do a poll for all frames first
nPollCnt++;
if (!pcan232obj->m_can232obj.m_bAuto && (nPollCnt > 5)) {
char szCmd[5];
sprintf(szCmd, "A\r");
pcan232obj->m_can232obj.m_comm.comm_puts(szCmd, strlen(szCmd), true);
nPollCnt = 0;
}
UNLOCK_MUTEX(pcan232obj->m_can232ObjMutex);
if (!bActivity) SLEEP(100);
bActivity = false;
} // while( pcan232obj->m_can232obj.m_bRun )
pthread_exit(&rv);
}
void workThread( void *pThreadObject )
{
bool bRun = true;
bool bActivity = true;
short nPollCnt = 0;
DWORD errorCode = 0;
HANDLE can232ObjMutex;
// Must hav a valid work object
if ( NULL == pThreadObject ) ExitThread( errorCode );
// Get the object pointer in place
struct _can232obj *pcan232obj = (struct _can232obj *)pThreadObject;
can232ObjMutex = OpenMutex( MUTEX_ALL_ACCESS, false, CAN232_OBJ_MUTEX );
while ( pcan232obj->m_bRun ) {
///////////////////////////////////////////////////////////////////////
// Receive
///////////////////////////////////////////////////////////////////////
WaitForSingleObject( can232ObjMutex, INFINITE );
int cnt;
unsigned char c;
c = pcan232obj->m_comm.readChar( &cnt );
while ( 0 != cnt ) {
bActivity = true;
if ( CAN232_STATE_NONE == pcan232obj->m_state ) {
if ( ('t' == c ) || ( 'T' == c ) || ('r' == c ) || ( 'R' == c ) ) {
pcan232obj->m_state = CAN232_STATE_MSG;
pcan232obj->m_receiveBuf[ 0 ] = c;
pcan232obj->m_cntRcv = 1;
}
}
else if ( CAN232_STATE_MSG == pcan232obj->m_state ) {
pcan232obj->m_receiveBuf[ pcan232obj->m_cntRcv++ ] = c;
if ( 0x0d == c ) {
// One full message received
// If there is place in the queue
// add message to it
if ( pcan232obj->m_rcvList.nCount < CAN232_MAX_RCVMSG ) {
PCANALMSG pMsg = new canalMsg;
pMsg->flags = 0;
if ( NULL != pMsg ) {
dllnode *pNode = new dllnode;
if ( NULL != pNode ) {
if ( can232ToCanal( pcan232obj->m_receiveBuf, pMsg ) ) {
pNode->pObject = pMsg;
dll_addNode( &pcan232obj->m_rcvList, pNode );
// Update statistics
pcan232obj->m_stat.cntReceiveData += pMsg->sizeData;
pcan232obj->m_stat.cntReceiveFrames += 1;
}
else {
// Failed to translate message
delete pMsg;
delete pNode;
}
}
else {
delete pMsg;
}
}
}
pcan232obj->m_state = CAN232_STATE_NONE;
}
if ( pcan232obj->m_cntRcv > sizeof( pcan232obj->m_receiveBuf ) ) {
// Problems start all over again
pcan232obj->m_state = CAN232_STATE_NONE;
}
}
c = pcan232obj->m_comm.readChar( &cnt );
} // while
ReleaseMutex( can232ObjMutex );
///////////////////////////////////////////////////////////////////////
// Transmit
///////////////////////////////////////////////////////////////////////
WaitForSingleObject( can232ObjMutex, INFINITE );
// Is there anything to transmit
if ( ( NULL != pcan232obj->m_sndList.pHead ) &&
( NULL != pcan232obj->m_sndList.pHead->pObject ) ) {
char buf[ 80 ];
canalMsg msg;
bActivity = true;
memcpy( &msg, pcan232obj->m_sndList.pHead->pObject, sizeof( canalMsg ) );
dll_removeNode( &pcan232obj->m_sndList, pcan232obj->m_sndList.pHead );
// Must ve a valid standard id
if ( !( msg.flags & CANAL_IDFLAG_EXTENDED ) && ( msg.id > 0x7ff ) ) {
msg.id &= 0x7ff;
};
// Must ve a valid extended id
if ( ( msg.flags & CANAL_IDFLAG_EXTENDED ) && ( msg.id > 0x1fffffff ) ) {
msg.id &= 0x1fffffff;
}
if ( msg.flags & CANAL_IDFLAG_EXTENDED ) {
sprintf( buf, "T%08.8lX%i", msg.id, msg.sizeData );
}
else {
sprintf( buf, "t%03.3lX%i", msg.id, msg.sizeData );
}
if ( msg.sizeData ) {
char hex[5];
for ( int i= 0; i< msg.sizeData; i++ ) {
sprintf( hex, "%02.2X", msg.data[i] );
strcat( buf, hex );
}
}
// Send the data
char szResponse[ 32 ];
pcan232obj->m_comm.write( buf, true, true );
pcan232obj->m_comm.readBuf( szResponse, sizeof( szResponse ), -1 );
// Update statistics
pcan232obj->m_stat.cntTransmittData += msg.sizeData;
pcan232obj->m_stat.cntTransmittFrames += 1;
// If not in autopoll mode
if ( 0x0d == *szResponse ) {
}
// If in autopoll mode extended message
else if ( ( msg.flags & CANAL_IDFLAG_EXTENDED ) && ( 'Z' == *szResponse ) ) {
}
// If in autopoll mode standard message
else if ( !( msg.flags & CANAL_IDFLAG_EXTENDED ) && ( 'z' == *szResponse ) ) {
}
}
// If not in autopoll mode we do a poll for all frames first
nPollCnt++;
if ( !pcan232obj->m_bAuto && ( nPollCnt > 5 ) ) {
pcan232obj->m_comm.write( "A", true, true );
nPollCnt = 0;
}
ReleaseMutex( can232ObjMutex );
if ( !bActivity ) Sleep ( 100 );
bActivity = false;
}
// Release the mutex for other threads to use
ReleaseMutex( can232ObjMutex );
ExitThread( errorCode );
}