int main(int argc,char **argv) { int status; double value=1.0; double newvalue=0.0; char *pvname; double blockTime; if(argc!=3) { printf("usage: testsyncgroup <pvname> <blockTime>\n"); exit(1); } pvname = argv[1]; sscanf(argv[2],"%le",&blockTime); SEVCHK(ca_task_initialize(),"ca_task_initialize"); SEVCHK(ca_search(pvname,&mychid),"ca_search_and_connect"); SEVCHK(ca_pend_io(1.0),"ca_pend_io"); SEVCHK(ca_sg_create(&gid),"ca_sg_create"); SEVCHK(ca_sg_array_put(gid,DBR_DOUBLE,1,mychid,(void *)&value), "ca_sg_array_put"); SEVCHK(ca_sg_array_get(gid,DBR_DOUBLE,1,mychid,(void *)&newvalue), "ca_sg_array_put"); status = ca_sg_block(gid,blockTime); printf("ca_sg_block status=%s\n",ca_message(status)); status = ca_sg_test(gid); printf("ca_sg_test status=%s\n",ca_message(status)); printf("newvalue=%f\n",newvalue); return(0); }
int main(int argc,char **argv) { int indval,field; SEVCHK(ca_task_initialize(),"ca_task_initialize"); SEVCHK(ca_search("enumCputDTYP",&putCchid[0]),"ca_search failure"); SEVCHK(ca_search("enumCputPRIO",&putCchid[1]),"ca_search failure"); SEVCHK(ca_search("enumCputVAL" ,&putCchid[2]),"ca_search failure"); SEVCHK(ca_search("enumMDbputDTYP",&putMDbchid[0]),"ca_search failure"); SEVCHK(ca_search("enumMDbputPRIO",&putMDbchid[1]),"ca_search failure"); SEVCHK(ca_search("enumMDbputVAL" ,&putMDbchid[2]),"ca_search failure"); SEVCHK(ca_search("enumMCaputDTYP",&putMCachid[0]),"ca_search failure"); SEVCHK(ca_search("enumMCaputPRIO",&putMCachid[1]),"ca_search failure"); SEVCHK(ca_search("enumMCaputVAL" ,&putMCachid[2]),"ca_search failure"); SEVCHK(ca_search("enumCmbbi.DTYP" ,&getCchid[0]),"ca_search failure"); SEVCHK(ca_search("enumCmbbi.PRIO" ,&getCchid[1]),"ca_search failure"); SEVCHK(ca_search("enumCmbbi.VAL" ,&getCchid[2]),"ca_search failure"); SEVCHK(ca_search("enumMDbmbbi.DTYP" ,&getMDbchid[0]),"ca_search failure"); SEVCHK(ca_search("enumMDbmbbi.PRIO" ,&getMDbchid[1]),"ca_search failure"); SEVCHK(ca_search("enumMDbmbbi.VAL" ,&getMDbchid[2]),"ca_search failure"); SEVCHK(ca_search("enumMCambbi.DTYP" ,&getMCachid[0]),"ca_search failure"); SEVCHK(ca_search("enumMCambbi.PRIO" ,&getMCachid[1]),"ca_search failure"); SEVCHK(ca_search("enumMCambbi.VAL" ,&getMCachid[2]),"ca_search failure"); SEVCHK(ca_pend_io(5.0),"ca_pend_io failure"); for(indval=0; indval<2; indval++) { SEVCHK(ca_put(DBR_STRING,putCchid[0],dtypValue[indval]),"ca_put"); SEVCHK(ca_put(DBR_STRING,putCchid[1],prioValue[indval]),"ca_put"); SEVCHK(ca_put(DBR_STRING,putCchid[2],valValue[indval]),"ca_put"); SEVCHK(ca_put(DBR_STRING,putMDbchid[0],dtypValue[indval]),"ca_put"); SEVCHK(ca_put(DBR_STRING,putMDbchid[1],prioValue[indval]),"ca_put"); SEVCHK(ca_put(DBR_STRING,putMDbchid[2],valValue[indval]),"ca_put"); SEVCHK(ca_put(DBR_STRING,putMCachid[0],dtypValue[indval]),"ca_put"); SEVCHK(ca_put(DBR_STRING,putMCachid[1],prioValue[indval]),"ca_put"); SEVCHK(ca_put(DBR_STRING,putMCachid[2],valValue[indval]),"ca_put"); /*Wait until evertthing updated*/ ca_pend_event(2.0); for(field=0; field<3; field++) { SEVCHK(ca_get(DBR_STRING,getCchid[field],&getCvalue[field]), "ca_get"); SEVCHK(ca_get(DBR_STRING,getMDbchid[field],&getMDbvalue[field]), "ca_get"); SEVCHK(ca_get(DBR_STRING,getMCachid[field],&getMCavalue[field]), "ca_get"); } SEVCHK(ca_pend_io(5.0),"ca_pend_io failure"); printReport(indval); } return(0); }
int main(int argc,char **argv) { chid mychid; unsigned short value; if(argc!=3) { printf("usage: caputackt pvname value\n"); exit(1); } sscanf(argv[2],"%hu",&value); SEVCHK(ca_task_initialize(),"ca_task_initialize"); SEVCHK(ca_search(argv[1],&mychid), "ca_search"); ca_pend_io(5.0); SEVCHK(ca_put(DBR_PUT_ACKT,mychid,&value),"ca_put"); ca_pend_event(1.0); /* ca_task_exit(); */ return(0); }
void mexFunction( int nlhs, mxArray *plhs[], int nrhs, const mxArray *prhs[]) { int status; 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 } else { CA_INITIALIZED = false; mexPrintf("Closing MATLAB Channel Access ... \n"); ca_task_exit(); } }
void medmCATerminate() { int status; /* Cancel registration of the CA file descriptors */ /* KE: Doesn't cancel it. The first argument should be NULL for cancel */ /* And why do we want to cancel it ? */ status = ca_task_initialize(); if(status != ECA_NORMAL) { medmPostMsg(1,"medmCATerminate: ca_add_fd_registration failed: %s\n", ca_message(status)); } /* Do a pend_event */ /* KE: Why? */ #ifdef __MONITOR_CA_PEND_EVENT__ { double t; t = medmTime(); /* Don't allow early returns */ ca_pend_event(20.0*CA_PEND_EVENT_TIME); t = medmTime() - t; if(t > 0.5) { print("medmCATerminate: time used by ca_pend_event = %8.1f\n",t); } } #else ca_pend_event(20.0*CA_PEND_EVENT_TIME); /* don't allow early returns */ #endif /* Close down channel access */ status = ca_task_exit(); if(status != ECA_NORMAL) { medmPostMsg(1,"medmCATerminate: ca_task_exit failed: %s\n", ca_message(status)); } /* Clean up the memory allocated for Channel's */ /* KE: Used to be done first */ caTaskDelete(); }
int main(int argc,char **argv) { int status; double value=1.0; char *pvname; double pendEventTime; int maxTrys = 3; if(argc!=3) { printf("usage: testputnotify <pvname> <pendEventTime>\n"); exit(1); } pvname = argv[1]; sscanf(argv[2],"%le",&pendEventTime); SEVCHK(ca_task_initialize(),"ca_task_initialize"); SEVCHK(ca_search(pvname,&mychid),"ca_search_and_connect"); SEVCHK(ca_pend_io(1.0),"ca_pend_io"); while(TRUE) { SEVCHK(ca_array_put_callback(DBR_DOUBLE,1,mychid, (void *)&value,putCallback,NULL), "ca_put_callback"); ntrys=0; gotCallback=FALSE; while(!gotCallback && ntrys <=maxTrys) { status = ca_pend_event(pendEventTime); if(status!=ECA_NORMAL && status!=ECA_TIMEOUT) printf("ca_pend_event status=%s\n",ca_message(status)); ntrys++; if(ntrys==maxTrys) { printf(" Never got callback\n"); break; } } printf(" number ca_pend_event = %d\n",ntrys); } return(0); }
/* * fetchClientContext (); */ int fetchClientContext ( ca_client_context **ppcac ) { epicsThreadOnce ( &caClientContextIdOnce, ca_init_client_context, 0 ); if ( caClientContextId == 0 ) { return ECA_ALLOCMEM; } int status; *ppcac = ( ca_client_context * ) epicsThreadPrivateGet ( caClientContextId ); if ( *ppcac ) { status = ECA_NORMAL; } else { status = ca_task_initialize (); if ( status == ECA_NORMAL ) { *ppcac = (ca_client_context *) epicsThreadPrivateGet ( caClientContextId ); if ( ! *ppcac ) { status = ECA_INTERNAL; } } } return status; }
int main(int argc, char** argv) { fd_set rfds; int tot; struct timeval tv; if(argc!=3) { fprintf(stderr,"Usage: %s PV_to_monitor script_to_run\n\n",argv[0]); fprintf(stderr,"This program monitored PV PV_to_monitor and\n"); fprintf(stderr,"runs and executes script_to_run, which can be\n"); fprintf(stderr,"any program or executable script.\n"); fprintf(stderr,"The script or program gets invoked with the first\n"); fprintf(stderr,"argument as the PV name and the second argument\n"); fprintf(stderr,"as the value of the PV\n"); fprintf(stderr,"The program or shell script script_to_run is\n"); fprintf(stderr,"run as a separate child process of this program\n"); fprintf(stderr,"This means that your script or program will not\n"); fprintf(stderr,"stop this process from running, if fact your\n"); fprintf(stderr,"script or program can be invoked many times if\n"); fprintf(stderr,"the value of the PV is changing rapidly and\n"); fprintf(stderr,"several instances of your program could be running\n"); fprintf(stderr,"simultaneously.\n"); return -1; } strcpy(pv_name,argv[1]); script_name=argv[2]; pv_value[0]='\0'; if(access(script_name,X_OK)<0) { fprintf(stderr,"Script %s not found or not executable\n",script_name); return -1; } signal(SIGINT,sig_func); signal(SIGQUIT,sig_func); signal(SIGTERM,sig_func); signal(SIGHUP,sig_func); signal(SIGCHLD,sig_chld); FD_ZERO(&all_fds); SEVCHK(ca_task_initialize(),"task initialize"); SEVCHK(ca_add_fd_registration(fdCB,&all_fds),"add fd registration"); SEVCHK(ca_add_exception_event(exCB,NULL),"add exception event"); SEVCHK(ca_search_and_connect(pv_name,&id,conCB,NULL), "search and connect"); SEVCHK(ca_replace_access_rights_event(id,accCB), "replace access rights event"); /* SEVCHK(ca_add_event(DBR_TIME_STRING,data.id,evCB,&data,&data.event), "add event"); */ ca_pend_event(REALLY_SMALL); /* fprintf(stderr,"Monitoring <%s>\n",pv_name); */ while(do_not_exit) { rfds=all_fds; tv.tv_sec=1; tv.tv_usec=0; /*200000*/; switch(tot=select(FD_SETSIZE,&rfds,NULL,NULL,&tv)) { /* case -1: perror("select error - bad"); break; */ case 0: ca_pend_event(REALLY_SMALL); break; default: /* fprintf(stderr,"select data ready\n"); */ ca_pend_event(REALLY_SMALL); break; } } fprintf(stderr,"PV monitor program is exiting!\n"); ca_task_exit(); return 0; }
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; } }