static void mca_cleanup(void)
{ int i, status;
mexPrintf("Terminating periodic CA polling\n");
KillTimer(NULL,PollTimerHandle);
// Clear persistent memory Arrays
for(i=0;i<HandlesUsed;i++)
{ if(CHNLS[i].EVID)
{ mexPrintf("Clearing monitor on channel %d\n",i);
status = ca_clear_event(CHNLS[i].EVID);
if(status!=ECA_NORMAL)
mexPrintf("ca_clear_event failed\n");
}
if(CHNLS[i].CACHE)
mxDestroyArray(CHNLS[i].CACHE);
if(CHNLS[i].DataBuffer)
mxFree(CHNLS[i].DataBuffer);
if(CHNLS[i].MonitorCBString)
mxFree(CHNLS[i].MonitorCBString);
}
mexPrintf("Closing CA connections ...\n");
ca_task_exit();
HandlesUsed = 0;
CA_INITIALIZED = false;
}
static void caDelete(Record *pr)
{
int status;
Channel *pCh;
if(!pr) return;
pCh = &((caTask.pages[pr->caId/CA_PAGE_SIZE])
[pr->caId % CA_PAGE_SIZE]);
if(ca_state(pCh->chid) == cs_conn)
caTask.channelConnected--;
#if 0
/* KE: This is not necessary according to Jeff */
ca_change_connection_event(pCh->chid,NULL);
ca_replace_access_rights_event(pCh->chid,NULL);
#endif
if(pCh->evid) {
status = ca_clear_event(pCh->evid);
if(status != ECA_NORMAL) {
medmPostMsg(1,"caDelete: ca_clear_event failed: %s\n",
ca_message(status));
return;
}
}
pCh->evid = NULL;
if(pCh->chid) {
status = ca_clear_channel(pCh->chid);
if(status != ECA_NORMAL) {
medmPostMsg(1,"caDelete: ca_clear_channel failed: %s\n",
ca_message(status));
return;
}
}
pCh->chid = NULL;
if(pCh->data) {
free((char *)pCh->data);
pCh->data = NULL;
}
if(caTask.freeListCount >= caTask.freeListSize) {
caTask.freeListSize += CA_PAGE_SIZE;
#if defined(__cplusplus) && !defined(__GNUG__)
caTask.freeList = (int *) realloc((malloc_t)caTask.freeList,
sizeof(int)*caTask.freeListSize);
#else
caTask.freeList = (int *) realloc(caTask.freeList,
sizeof(int)*caTask.freeListSize);
#endif
if(caTask.freeList == NULL) {
medmPostMsg(1,"caDelete: Memory allocation error\n");
return;
}
}
caTask.freeList[caTask.freeListCount] = pCh->caId;
caTask.freeListCount++;
caTask.channelCount--;
#if DEBUG_ADD
print("caAdd: channelCount=%3d\n",caTask.channelCount);
#endif
}
void ChannelAccessThr::ClearEventsOnPage(const int page)
{
if(getClearEvents()==true) return;
//qDebug("ClearEvents-Page[%d]",page);
for(size_t i = 0; i < vecnode.size(); i++)
{
CHNODE *pNode = &vecnode.at(i);
if(pNode == NULL) continue;
int state = ca_state(pNode->ch_id);
ca_pend_event(0.001);
if(state == 0)
{
qDebug("Not Conntected - pv(%s)", pNode->pvname.toStdString().c_str());
continue;
};
SEVCHK(ca_clear_event(pNode->ev_id), NULL);
};
setClearEvents(true);
}
void mexFunction( int nlhs, mxArray *plhs[], int nrhs, const mxArray *prhs[])
{
int i,j, k, status,buflen,Cnt, Hndl, L,M,N, NumHandles, commandswitch;
int *HndlArray;
mxArray *mymxArray;
double *myDblPr;
chtype RequestType;
char PVName[PV_NAME_LENGTH_MAX+1];
// char MCAMessageString[MCA_MESSAGE_STRING_LENGTH_MAX+1];
dbr_string_t StrBuffer;
const char *MCAInfoFields[]={"PVName","ElementCount","NativeType","State","MCAMessage","Host"};
char *NativeTypeStrings[] = {"STRING","INT","FLOAT","ENUM","CHAR","LONG","DOUBLE"};
if(!CA_INITIALIZED) // Initialize CA if not initialized (first call)
{ mexPrintf("Initializing MATLAB Channel Access ... \n");
status = ca_task_initialize();
if(status!=ECA_NORMAL)
mexErrMsgTxt("Unable to initialise Challel Access\n");
CA_INITIALIZED = true;
// Register a function to be called when a this mex-file is cleared from memory
// with 'clear' or when exitting MATLAB
mexAtExit(mca_cleanup);
// Lock the mex-file so that it can not be cleared without explicitly
// mexUnclock
mexLock();
//start periodic polling:
/* PollTimerHandle = SetTimer(NULL,NULL,MCA_POLL_PERIOD,background_poll);
if(PollTimerHandle)
mexPrintf("Periodic CA polling started! System Timer ID: %u\n",PollTimerHandle);
else
mexWarnMsgTxt("Failed to start periodic CA polling\n");
*/
}
commandswitch = (int)mxGetScalar(prhs[0]);
switch(commandswitch)
{ case 0:
mexUnlock();
break;
case 1: // MCAOPEN - add channel(s) by PV names, all arguments following prhs[0]
// must be strings - names of PV's
for(i=1;i<nrhs;i++)
{ mxGetString(prhs[i],PVName,PV_NAME_LENGTH_MAX+1);
status = ca_search(PVName,&(CHNLS[HandlesUsed].CHID));
if(status == ECA_NORMAL) // if not - go on to the next PV name
{ status = ca_pend_io(MCA_SEARCH_TIMEOUT);
if (status == ECA_NORMAL)
{ // Allocate persistent memory for the DataBuffer on this channel
// to hold all elements of the DBR_XXX type
// nearest to the native type
// RequestType = dbf_type_to_DBR(ca_field_type(CHNLS[HandlesUsed].CHID));
// Cnt=ca_element_count(CHNLS[HandlesUsed].CHID);
CHNLS[HandlesUsed].NumElements = ca_element_count(CHNLS[HandlesUsed].CHID);
CHNLS[HandlesUsed].NativeType2DBR = dbf_type_to_DBR(ca_field_type(CHNLS[HandlesUsed].CHID));
CHNLS[HandlesUsed].MonitorEventCount = 0;
switch(CHNLS[HandlesUsed].NativeType2DBR)
{ case DBR_STRING:
CHNLS[HandlesUsed].DataBuffer = mxCalloc(CHNLS[HandlesUsed].NumElements,sizeof(dbr_string_t));
break;
case DBR_INT: // As defined in db_access.h DBR_INT = DBR_SHORT = 1
CHNLS[HandlesUsed].DataBuffer = mxCalloc(CHNLS[HandlesUsed].NumElements,sizeof(dbr_short_t));
break;
case DBR_FLOAT:
CHNLS[HandlesUsed].DataBuffer = mxCalloc(CHNLS[HandlesUsed].NumElements,sizeof(dbr_float_t));
break;
case DBR_ENUM:
CHNLS[HandlesUsed].DataBuffer = mxCalloc(CHNLS[HandlesUsed].NumElements,sizeof(dbr_enum_t));
break;
case DBR_CHAR:
CHNLS[HandlesUsed].DataBuffer = mxCalloc(CHNLS[HandlesUsed].NumElements,sizeof(dbr_char_t));
break;
case DBR_LONG:
CHNLS[HandlesUsed].DataBuffer = mxCalloc(CHNLS[HandlesUsed].NumElements,sizeof(dbr_short_t));
break;
case DBR_DOUBLE:
CHNLS[HandlesUsed].DataBuffer = mxCalloc(CHNLS[HandlesUsed].NumElements,sizeof(dbr_double_t));
break;
}
mexMakeMemoryPersistent(CHNLS[HandlesUsed].DataBuffer);
if(CHNLS[HandlesUsed].NativeType2DBR==DBR_STRING) // CACHE
{ if(CHNLS[HandlesUsed].NumElements==1) // Create MATLAB string - originally empty
CHNLS[HandlesUsed].CACHE = mxCreateString("");
else // Create MATLAB cell array of strings
{ CHNLS[HandlesUsed].CACHE = mxCreateCellMatrix(1,CHNLS[HandlesUsed].NumElements);
for(k=0;k<CHNLS[HandlesUsed].NumElements;k++)
{ mymxArray = mxCreateString("");
mexMakeArrayPersistent(mymxArray);
mxSetCell(CHNLS[HandlesUsed].CACHE, k, mymxArray);
}
}
}
else // Make CACHE a numeric mxArray
{ CHNLS[HandlesUsed].CACHE = mxCreateDoubleMatrix(1,CHNLS[HandlesUsed].NumElements,mxREAL);
}
mexMakeArrayPersistent(CHNLS[HandlesUsed].CACHE);
plhs[i-1]=mxCreateScalarDouble(++HandlesUsed);
}
else
plhs[i-1]=mxCreateScalarDouble(0);
}
else
plhs[i-1]=mxCreateScalarDouble(0);
} break;
case 2:// MCAOPEN - add channel(s) by PV names. The arguments following prhs[0]
// argument must be a cell array of strings - PV names
L = mxGetM(prhs[1])*mxGetN(prhs[1]);
plhs[0] = mxCreateDoubleMatrix(1,L,mxREAL);
myDblPr = mxGetPr(plhs[0]);
for(i=0;i<L;i++)
{ mymxArray = mxGetCell(prhs[1],i);
mxGetString(mymxArray,PVName,PV_NAME_LENGTH_MAX+1);
status = ca_search(PVName,&(CHNLS[HandlesUsed].CHID));
if(status == ECA_NORMAL) // if not - go on to the next PV name
{ status = ca_pend_io(MCA_IO_TIMEOUT);
if (status == ECA_NORMAL)
{ // Allcate persistent memory for the DataBuffer on this channel
//RequestType = dbf_type_to_DBR(ca_field_type(CHNLS[HandlesUsed].CHID));
CHNLS[HandlesUsed].NativeType2DBR = dbf_type_to_DBR(ca_field_type(CHNLS[HandlesUsed].CHID));
CHNLS[HandlesUsed].NumElements = ca_element_count(CHNLS[HandlesUsed].CHID);
CHNLS[HandlesUsed].MonitorEventCount = 0;
//Cnt=ca_element_count(CHNLS[HandlesUsed].CHID);
switch(CHNLS[HandlesUsed].NativeType2DBR)
{ case DBR_STRING:
CHNLS[HandlesUsed].DataBuffer = mxCalloc(CHNLS[HandlesUsed].NumElements,sizeof(dbr_string_t));
break;
case DBR_INT: // As defined in db_access.h DBR_INT = DBR_SHORT = 1
CHNLS[HandlesUsed].DataBuffer = mxCalloc(CHNLS[HandlesUsed].NumElements,sizeof(dbr_short_t));
break;
case DBR_FLOAT:
CHNLS[HandlesUsed].DataBuffer = mxCalloc(CHNLS[HandlesUsed].NumElements,sizeof(dbr_float_t));
break;
case DBR_ENUM:
CHNLS[HandlesUsed].DataBuffer = mxCalloc(CHNLS[HandlesUsed].NumElements,sizeof(dbr_enum_t));
break;
case DBR_CHAR:
CHNLS[HandlesUsed].DataBuffer = mxCalloc(CHNLS[HandlesUsed].NumElements,sizeof(dbr_char_t));
break;
case DBR_LONG:
CHNLS[HandlesUsed].DataBuffer = mxCalloc(CHNLS[HandlesUsed].NumElements,sizeof(dbr_short_t));
break;
case DBR_DOUBLE:
CHNLS[HandlesUsed].DataBuffer = mxCalloc(CHNLS[HandlesUsed].NumElements,sizeof(dbr_double_t));
break;
}
mexMakeMemoryPersistent(CHNLS[HandlesUsed].DataBuffer);
if(CHNLS[HandlesUsed].NativeType2DBR == DBR_STRING) // CACHE
{ CHNLS[HandlesUsed].CACHE = mxCreateCellMatrix(1,CHNLS[HandlesUsed].NumElements);
for(k=0;k<CHNLS[HandlesUsed].NumElements;k++)
{ mymxArray = mxCreateString(StrBuffer);
mexMakeArrayPersistent(mymxArray);
mxSetCell(CHNLS[HandlesUsed].CACHE, k, mymxArray);
}
}
else
{ CHNLS[HandlesUsed].CACHE = mxCreateDoubleMatrix(1,CHNLS[HandlesUsed].NumElements,mxREAL);
}
mexMakeArrayPersistent(CHNLS[HandlesUsed].CACHE);
myDblPr[i] = ++HandlesUsed;
}
else
myDblPr[i] = 0;
}
else
myDblPr[i] = 0;
} break;
case 3: // MCAOPEN Return names of connected channels as cell array of strings
plhs[0] = mxCreateCellArray(1, &HandlesUsed);
for(i=0;i<HandlesUsed;i++)
{ if(CHNLS[i].CHID!=NULL)
{ mymxArray = mxCreateString(ca_name(CHNLS[i].CHID));
mxSetCell(plhs[0], i, mymxArray);
}
else
{ mymxArray = mxCreateString("");
//mexPrintf("Handle: %d PV: %s\n",i+1, "Cleared Channel");
mxSetCell(plhs[0], i, mymxArray);
}
} break;
case 5: // MCACLOSE permanently clear channel
Hndl = (int)mxGetScalar(prhs[1]);
if(Hndl<1 || Hndl>HandlesUsed)
mexErrMsgTxt("Handle out of range");
// If a monitor is installed, set the EVID pointer to NULL
// ca_clear_event dos not do it by itself
if(CHNLS[Hndl-1].EVID)
CHNLS[Hndl-1].EVID = NULL;
// If there is Callback String - destroy it
if(CHNLS[Hndl-1].MonitorCBString)
{ mxFree(CHNLS[Hndl-1].MonitorCBString);
CHNLS[Hndl-1].MonitorCBString =NULL;
}
if(ca_state(CHNLS[Hndl-1].CHID)==3)
mexWarnMsgTxt("Channel previously cleared");
else
if(ca_clear_channel(CHNLS[Hndl-1].CHID)!=ECA_NORMAL)
mexErrMsgTxt("ca_clear_channel failed");
break;
case 10: // MCAINFO return channels info as MATLAB structure array
if(HandlesUsed>0)
{ plhs[0] = mxCreateStructMatrix(1,HandlesUsed,6,MCAInfoFields);
for(i=0;i<HandlesUsed;i++)
{ mxSetFieldByNumber(plhs[0],i,0,mxCreateString(ca_name(CHNLS[i].CHID)));
mxSetFieldByNumber(plhs[0],i,1,mxCreateScalarDouble(ca_element_count(CHNLS[i].CHID)));
mxSetFieldByNumber(plhs[0],i,5,mxCreateString(ca_host_name(CHNLS[i].CHID)));
switch(ca_state(CHNLS[i].CHID))
{ case 1: // Disconnected due to Server or Network - may reconnect
mxSetFieldByNumber(plhs[0],i,2,mxCreateString("unknown"));
mxSetFieldByNumber(plhs[0],i,3,mxCreateString("disconnected"));
mxSetFieldByNumber(plhs[0],i,4,mxCreateString("Disconnected due to server or network problem"));
break;
case 2: // Normal connection
mxSetFieldByNumber(plhs[0],i,2,mxCreateString(NativeTypeStrings[ca_field_type(CHNLS[i].CHID)]));
mxSetFieldByNumber(plhs[0],i,3,mxCreateString("connected"));
mxSetFieldByNumber(plhs[0],i,4,mxCreateString("Normal connection"));
break;
case 3: // Disconnected by user
mxSetFieldByNumber(plhs[0],i,2,mxCreateString("unknown"));
mxSetFieldByNumber(plhs[0],i,3,mxCreateString("disconnected"));
mxSetFieldByNumber(plhs[0],i,4,mxCreateString("Permanently disconnected (cleared) by the user"));
break;
}
}
}
else
{ mexWarnMsgTxt("No connected PV's found");
plhs[0] = mxCreateDoubleMatrix(0,0,mxREAL);
}
break;
case 11: // MCAINFO return info for 1 channel by handle number
Hndl = (int)mxGetScalar(prhs[1]);
if(Hndl<1 || Hndl>HandlesUsed)
mexErrMsgTxt("Handle out of range");
plhs[0] = mxCreateStructMatrix(1,1,6,MCAInfoFields);
mxSetFieldByNumber(plhs[0],0,0,mxCreateString(ca_name(CHNLS[Hndl-1].CHID)));
mxSetFieldByNumber(plhs[0],0,1,mxCreateScalarDouble(ca_element_count(CHNLS[Hndl-1].CHID)));
mxSetFieldByNumber(plhs[0],0,5,mxCreateString(ca_host_name(CHNLS[Hndl-1].CHID)));
switch(ca_state(CHNLS[Hndl-1].CHID))
{ case 1: // Disconnected due to Server or Network - may reconnect
mxSetFieldByNumber(plhs[0],0,2,mxCreateString("unknown"));
mxSetFieldByNumber(plhs[0],0,3,mxCreateString("disconnected"));
mxSetFieldByNumber(plhs[0],0,4,mxCreateString("Disconnected due to server or network problem"));
break;
case 2: // Normal connection
mxSetFieldByNumber(plhs[0],0,2,mxCreateString(NativeTypeStrings[ca_field_type(CHNLS[Hndl-1].CHID)]));
mxSetFieldByNumber(plhs[0],0,3,mxCreateString("connected"));
mxSetFieldByNumber(plhs[0],0,4,mxCreateString("Normal connection"));
break;
case 3: // Disconnected by user
mxSetFieldByNumber(plhs[0],0,2,mxCreateString("unknown"));
mxSetFieldByNumber(plhs[0],0,3,mxCreateString("disconnected"));
mxSetFieldByNumber(plhs[0],0,4,mxCreateString("Permanently disconnected (cleared) by the user"));
break;
};
break;
case 12: // MCASTATE return an array of status (1 - OK, 0 - disconnected or cleared)
if(HandlesUsed>0)
{ plhs[0] = mxCreateDoubleMatrix(1,HandlesUsed,mxREAL);
myDblPr = mxGetPr(plhs[0]);
for(i=0;i<HandlesUsed;i++)
myDblPr[i] = (double)(ca_state(CHNLS[i].CHID)==2);
}
else
{ mexWarnMsgTxt("No connected PV's found");
plhs[0] = mxCreateDoubleMatrix(0,0,mxREAL);
}
break;
case 30: // poll
ca_poll();
break;
case 50: // MCAGET Get PV values by their MCA handles
for(i=0;i<nrhs-1;i++) // First loop: place all ca_get requests in the buffer
{ Hndl = (int)mxGetScalar(prhs[1+i]); //start from[1]: [0] argument is the commnads switch
if(Hndl<1 || Hndl>HandlesUsed)
mexErrMsgTxt("Invalid Handle");
RequestType = dbf_type_to_DBR(ca_field_type(CHNLS[Hndl-1].CHID));
Cnt = ca_element_count(CHNLS[Hndl-1].CHID);
status = ca_array_get(RequestType,Cnt,CHNLS[Hndl-1].CHID,CHNLS[Hndl-1].DataBuffer);
if(status!=ECA_NORMAL)
mexPrintf("Error in call to ca_array_get\n");
}
status = ca_pend_io(MCA_GET_TIMEOUT);
if(status!=ECA_NORMAL)
mexErrMsgTxt("... ca_pend_io call timed out \n");
for(i=0;i<nrhs-1;i++) // Another loop to copy data from temp structures to MATLAB
{ Hndl = (int)mxGetScalar(prhs[1+i]);
RequestType = RequestType = dbf_type_to_DBR(ca_field_type(CHNLS[Hndl-1].CHID));
Cnt = ca_element_count(CHNLS[Hndl-1].CHID);
if(RequestType==DBR_STRING)
{ if(Cnt==1)
plhs[i] = mxCreateString((char*)(*((dbr_string_t*)(CHNLS[Hndl-1].DataBuffer))));
else
{ plhs[i] = mxCreateCellMatrix(1,Cnt);
for(j=0;j<Cnt;j++)
mxSetCell(plhs[i], j, mxCreateString((char*)(*((dbr_string_t*)(CHNLS[Hndl-1].DataBuffer)+j))));
}
}
else
{ plhs[i] = mxCreateDoubleMatrix(1,Cnt,mxREAL);
myDblPr = mxGetPr(plhs[i]);
switch(dbf_type_to_DBR(ca_field_type(CHNLS[Hndl-1].CHID)))
{ case DBR_INT: // As defined in db_access.h DBR_INT = DBR_SHORT = 1
for(j=0;j<Cnt;j++)
myDblPr[j]= (double)(*((dbr_short_t*)(CHNLS[Hndl-1].DataBuffer)+j));
break;
case DBR_FLOAT:
for(j=0;j<Cnt;j++)
myDblPr[j]= (double)(*((dbr_float_t*)(CHNLS[Hndl-1].DataBuffer)+j));
break;
case DBR_ENUM:
for(j=0;j<Cnt;j++)
myDblPr[j]= (double)(*((dbr_enum_t*)(CHNLS[Hndl-1].DataBuffer)+j));
break;
case DBR_CHAR:
for(j=0;j<Cnt;j++)
myDblPr[j]= (double)(*((dbr_char_t*)(CHNLS[Hndl-1].DataBuffer)+j));
break;
case DBR_LONG:
for(j=0;j<Cnt;j++)
myDblPr[j]= (double)(*((dbr_long_t*)(CHNLS[Hndl-1].DataBuffer)+j));
break;
case DBR_DOUBLE:
for(j=0;j<Cnt;j++)
myDblPr[j]= (double)(*((dbr_double_t*)(CHNLS[Hndl-1].DataBuffer)+j));
break;
}
}
} break;
case 51: // MCAGET Get scalar PV of the same type
// second argument is an array of handles
// returns an array of values
myDblPr = mxGetPr(prhs[1]);
M = mxGetM(prhs[1]);
N = mxGetN(prhs[1]);
NumHandles = M*N;
plhs[0] = mxCreateDoubleMatrix(M,N,mxREAL);
for(i=0;i<NumHandles;i++) // First loop: place all ca_get requests in the buffer
{ Hndl = (int)myDblPr[i];
if(Hndl<1 || Hndl>HandlesUsed)
mexErrMsgTxt("Invalid Handle");
RequestType = dbf_type_to_DBR(ca_field_type(CHNLS[Hndl-1].CHID));
status = ca_array_get(DBR_DOUBLE,1,CHNLS[Hndl-1].CHID,mxGetPr(plhs[0])+i);
if(status!=ECA_NORMAL)
mexPrintf("Error in call to ca_array_get\n");
}
status = ca_pend_io(MCA_GET_TIMEOUT);
if(status!=ECA_NORMAL)
mexErrMsgTxt("... ca_pend_io call timed out \n");
break;
case 70: // MCAPUT
NumHandles = (nrhs-1)/2;
for(i=0;i<NumHandles;i++)
{ j = 2+i*2;
Hndl = (int)mxGetScalar(prhs[1+i*2]);
if(Hndl<1 || Hndl>HandlesUsed)
mexErrMsgTxt("Handle out of range - no values written");
// Set the status to 0 - mcaput_callback will write 1, if successful
CHNLS[Hndl-1].LastPutStatus = 0;
RequestType = dbf_type_to_DBR(ca_field_type(CHNLS[Hndl-1].CHID));
Cnt = ca_element_count(CHNLS[Hndl-1].CHID);
// If a value to write is passed as a string - the number of elements to write
// is 1 , NOT the length of the string returned by mxGetNumberOfElements
if(mxIsChar(prhs[j]))
L=1;
else
L = min(mxGetNumberOfElements(prhs[j]),Cnt);
// Copy double or string data from MATLAB prhs[] to DataBuffer
// on each channel
if(RequestType==DBR_STRING)
{ // STRING type is is passed as a cell array of strings
// A a 1-row MATLAB character array (1 string) may also be passed as a value
if(mxIsChar(prhs[j]))
{ mxGetString(prhs[j], StrBuffer, sizeof(dbr_string_t));
strcpy((char*)(*((dbr_string_t*)(CHNLS[Hndl-1].DataBuffer))),StrBuffer);
}
else if(mxIsCell(prhs[j]))
{ for(k=0;k<L;k++)
{ mxGetString(mxGetCell(prhs[j],k), StrBuffer, sizeof(dbr_string_t));
strcpy((char*)(*((dbr_string_t*)(CHNLS[Hndl-1].DataBuffer)+k)),StrBuffer);
}
}
}
else
{ myDblPr = mxGetPr(prhs[j]);
switch(RequestType)
{
case DBR_INT: // As defined in db_access.h DBR_INT = DBR_SHORT = 1
for(k=0;k<L;k++)
*((dbr_short_t*)(CHNLS[Hndl-1].DataBuffer)+k) = (dbr_short_t)(myDblPr[k]);
break;
case DBR_FLOAT:
for(k=0;k<L;k++)
*((dbr_float_t*)(CHNLS[Hndl-1].DataBuffer)+k) = (dbr_float_t)(myDblPr[k]);
break;
case DBR_ENUM:
for(k=0;k<L;k++)
*((dbr_enum_t*)(CHNLS[Hndl-1].DataBuffer)+k) = (dbr_enum_t)(myDblPr[k]);
break;
case DBR_CHAR:
for(k=0;k<L;k++)
*((dbr_char_t*)(CHNLS[Hndl-1].DataBuffer)+k) = (dbr_char_t)(myDblPr[k]);
break;
case DBR_LONG:
for(k=0;k<L;k++)
*((dbr_long_t*)(CHNLS[Hndl-1].DataBuffer)+k) = (dbr_long_t)(myDblPr[k]);
break;
case DBR_DOUBLE:
for(k=0;k<L;k++)
*((dbr_double_t*)(CHNLS[Hndl-1].DataBuffer)+k) = (dbr_double_t)(myDblPr[k]);
break;
}
}
// place request in the que
status = ca_array_put_callback(RequestType,L,CHNLS[Hndl-1].CHID,CHNLS[Hndl-1].DataBuffer,
mcaput_callback,&(CHNLS[Hndl-1].LastPutStatus));
if(status!=ECA_NORMAL)
mexPrintf("ca_array_put_callback failed\n");
}
status = ca_pend_event(MCA_PUT_TIMEOUT);
plhs[0]=mxCreateDoubleMatrix(1,NumHandles,mxREAL);
myDblPr = mxGetPr(plhs[0]);
for(i=0;i<NumHandles;i++)
{ Hndl = (int)mxGetScalar(prhs[1+i*2]);
myDblPr[i] = (double)CHNLS[Hndl-1].LastPutStatus;
}
break;
case 80: // MCAPUT - fast unconfirmed put for scalar numeric PV's
myDblPr = mxGetPr(prhs[1]);
M = mxGetM(prhs[1]);
N = mxGetN(prhs[1]);
NumHandles = M*N;
plhs[0] = mxCreateDoubleMatrix(M,N,mxREAL);
myDblPr = mxGetPr(plhs[0]);
for(i=0;i<NumHandles;i++)
{ myDblPr = mxGetPr(plhs[0]);
Hndl = (int)(*(mxGetPr(prhs[1])+i));
if(Hndl<1 || Hndl>HandlesUsed)
mexErrMsgTxt("Handle out of range - no values written");
status = ca_array_put(DBR_DOUBLE,1,CHNLS[Hndl-1].CHID,mxGetPr(prhs[2])+i);
if(status!=ECA_NORMAL)
{ myDblPr[i] = 0;
//mexPrintf("ca_array_put_callback failed\n");
}
else
{ myDblPr[i] = 1;
}
}
status = ca_pend_io(MCA_PUT_TIMEOUT);
break;
case 100: // MCAMON install Monitor or replace MonitorCBString
Hndl = (int)mxGetScalar(prhs[1]);
// Check if the handle is within range
if(Hndl<1 || Hndl>HandlesUsed)
{ plhs[0]=mxCreateScalarDouble(0);
mexErrMsgTxt("Invalid Handle");
}
if(CHNLS[Hndl-1].EVID) // if VID is not NULL - another monitor is already installed - replace MonitorCBString
{ if(CHNLS[Hndl-1].MonitorCBString) // Free memory for occupied by the old MonitorCBString
{ mxFree(CHNLS[Hndl-1].MonitorCBString);
CHNLS[Hndl-1].MonitorCBString = NULL;
}
if(nrhs>2) // Check if the new string is specified
{ if(mxIsChar(prhs[2]))
{ buflen = mxGetM(prhs[2])*mxGetN(prhs[2])+1;
CHNLS[Hndl-1].MonitorCBString = (char *)mxMalloc(buflen);
mexMakeMemoryPersistent(CHNLS[Hndl-1].MonitorCBString);
mxGetString(prhs[2],CHNLS[Hndl-1].MonitorCBString,buflen);
}
else
mexErrMsgTxt("Third argument must be a string\n");
}
plhs[0]=mxCreateScalarDouble(1);
}
else // No monitor is presently installed;
{ RequestType = dbf_type_to_DBR(ca_field_type(CHNLS[Hndl-1].CHID)); // Closest to the native
if(nrhs>2)
{ if(mxIsChar(prhs[2]))
{ buflen = mxGetM(prhs[2])*mxGetN(prhs[2])+1;
CHNLS[Hndl-1].MonitorCBString = (char *)mxMalloc(buflen);
mexMakeMemoryPersistent(CHNLS[Hndl-1].MonitorCBString);
mxGetString(prhs[2],CHNLS[Hndl-1].MonitorCBString,buflen);
}
else
mexErrMsgTxt("Third argument must be a string\n");
}
else
CHNLS[Hndl-1].MonitorCBString = NULL; // Set MonitorCBString to NULL so that mcaMonitorEventHandler only copies data to CACHE
// Count argument set to 0 - native count
status = ca_add_array_event(RequestType,0,CHNLS[Hndl-1].CHID, mcaMonitorEventHandler, &CHNLS[Hndl-1], 0.0, 0.0, 0.0, &(CHNLS[Hndl-1].EVID));
if(status!=ECA_NORMAL)
{ mexPrintf("ca_add_array_event failed\n");
plhs[0]=mxCreateScalarDouble(0);
}
else
{ ca_poll();
plhs[0]=mxCreateScalarDouble(1);
}
}
break;
case 200: // Clear Monitor MCACLEARMON
Hndl = (int)mxGetScalar(prhs[1]);
if(Hndl<1 || Hndl>HandlesUsed)
mexErrMsgTxt("Invalid Handle");
if(!CHNLS[Hndl-1].EVID)
mexErrMsgTxt("No monitor installed - can not clear");
status = ca_clear_event(CHNLS[Hndl-1].EVID);
if(status!=ECA_NORMAL)
mexPrintf("ca_clear_event failed\n");
// Set the EVID pointer to NULL (ca_clear_event dos not do it by itself)
// to use as a FLAG that no monitors are installed
CHNLS[Hndl-1].EVID = NULL;
// Reset
CHNLS[Hndl-1].MonitorEventCount = 0;
// If there is Callback String - destroy it
if(CHNLS[Hndl-1].MonitorCBString)
{ mxFree(CHNLS[Hndl-1].MonitorCBString);
CHNLS[Hndl-1].MonitorCBString =NULL;
}
break;
case 300: // MCACACHE Get Cached values of a monitored PV
for(i=0;i<nrhs-1;i++)
{ Hndl = (int)mxGetScalar(prhs[1+i]);
// if(Hndl<1 || Hndl>HandlesUsed || !CHNLS[Hndl-1].CACHE)
if(Hndl<1 || Hndl>HandlesUsed)
plhs[i] = mxCreateDoubleMatrix(0,0,mxREAL);
else
{ plhs[i] = mxDuplicateArray(CHNLS[Hndl-1].CACHE);
CHNLS[Hndl-1].MonitorEventCount = 0;
}
}
break;
case 500: // MCAMON Info on installed monitors
L = 0;
HndlArray = (int*)mxCalloc(HandlesUsed,sizeof(int));
for(i=0;i<HandlesUsed;i++) // Count installed monitors
{ if(CHNLS[i].EVID)
HndlArray[L++]=i+1;
}
if(L>0)
{ plhs[0] = mxCreateDoubleMatrix(1,L,mxREAL);
myDblPr = mxGetPr(plhs[0]);
plhs[1] = mxCreateCellMatrix(1,L);
for(i=0;i<L;i++)
{ myDblPr[i] = (double)HndlArray[i];
mxSetCell(plhs[1],i,mxCreateString(CHNLS[HndlArray[i]-1].MonitorCBString));
}
}
else
{ plhs[0] = mxCreateDoubleMatrix(0,0,mxREAL);
plhs[1] = mxCreateCellMatrix(0,0);
}
break;
case 510: // MCAMONEVENTS Event count fot monitors
plhs[0] = mxCreateDoubleMatrix(1,HandlesUsed,mxREAL);
myDblPr = mxGetPr(plhs[0]);
for(i=0;i<HandlesUsed;i++)
myDblPr[i]=(double)(CHNLS[i].MonitorEventCount);
break;
case 1000: // print timeout settings
plhs[0] = mxCreateDoubleMatrix(3,1,mxREAL);
mexPrintf("MCA timeout settings\n:");
mexPrintf("mcaopen\t%f [s]\n", MCA_SEARCH_TIMEOUT );
mexPrintf("mcaget\t%f [s]\n", MCA_GET_TIMEOUT );
mexPrintf("mcaput\t%f [s]\n", MCA_PUT_TIMEOUT );
myDblPr = mxGetPr(plhs[0]);
myDblPr[0] = MCA_SEARCH_TIMEOUT;
myDblPr[1] = MCA_GET_TIMEOUT;
myDblPr[2] = MCA_PUT_TIMEOUT;
break;
case 1001: // set MCA_SEARCH_TIMEOUT
// return delay value
MCA_SEARCH_TIMEOUT = mxGetScalar(prhs[1]);
plhs[0] = mxCreateScalarDouble(MCA_SEARCH_TIMEOUT);
break;
case 1002: // set MCA_GET_TIMEOUT
// return delay value
MCA_GET_TIMEOUT = mxGetScalar(prhs[1]);
plhs[0] = mxCreateScalarDouble(MCA_GET_TIMEOUT);
break;
case 1003: // set MCA_PUT_TIMEOUT
// return delay value
MCA_PUT_TIMEOUT = mxGetScalar(prhs[1]);
plhs[0] = mxCreateScalarDouble(MCA_PUT_TIMEOUT);
break;
}
}
/*
* callback from connection handler: change the state of the channel valid
* flag depending on the connection being up or down.
* ASSUMPTIONS: chan_id is valid.
*/
static void
connect_callback(struct connection_handler_args args)
{
Connector *conp;
Channel *chan = ca_puser( args.chid);
int status;
DEBUGP printf("connect callback %p\n", chan);
switch( args.op)
{
case CA_OP_CONN_UP:
if( chan->initData == 1)
{
chan->maxelement = ca_element_count(chan->chan_id);
chan->chan_type = ca_field_type(chan->chan_id);
chan->initData = 0;
}
/*
* note that a dropped and recreated connection can cause a free and alloc. This
* is not always redundant, as software may have restarted with different sizes
* for the field!
*/
if( chan->createData == 1 )
{
if( chan->dataval)
free( chan->dataval);
chan->dataval = calloc(dbr_size[chan->chan_type], chan->maxelement+1);
}
chan->readAccess = ca_read_access( chan->chan_id);
chan->writeAccess = ca_write_access( chan->chan_id);
status = ca_array_get_callback( dbf_type_to_DBR_CTRL(ca_field_type(chan->chan_id)), 1, chan->chan_id, getChanInfo, (void*)chan);
SEVCHK(status, "connect_callback : ca_get_DBR_CTRL_event failed");
status = ca_replace_access_rights_event( chan->chan_id, getAccessRights);
SEVCHK(status, "connect_callback : ca_replace_access_rights_event failed");
chan->valid = 1;
chan->outstanding = 0;
if( chan->monitor)
{
chan->status = 100; /* MAGIC: an absurd status */
status = ca_add_array_event(dbf_type_to_DBR_STS(chan->chan_type), chan->maxelement, chan->chan_id, monitorCallback, chan,
(double) 0.0, (double) 0.0, (double) 0.0, &(chan->eventId));
SEVCHK(status, "connect_callback : ca_add_event failed");
status = ca_flush_io();
SEVCHK(status, "connect_callback : ca_flush_io failed");
}
break;
case CA_OP_CONN_DOWN:
if( chan->valid && chan->eventId)
ca_clear_event(chan->eventId);
chan->valid = 0;
chan->status = 99;
/*
* update the access rights and severity for all the connectors
*/
for(conp=chan->first_connector; conp ; conp=conp->next)
{
if(conp->newAccess)
(*conp->newAccess)(conp);
if( conp->newState)
(*conp->newState)(conp);
}
break;
default:
break;
}
return;
}
