Fix MsgTxt being broken

db/daq_soft_proton.db

@@ -50,9 +50,11 @@ record(longin, "$(INSTR)$(NAME):CHANNELS")
  field(DISP, 1)
 }
 
-record(stringin, "$(INSTR)$(NAME):MsgTxt")
+record(waveform, "$(INSTR)$(NAME):MsgTxt")
 {
  field(DESC, "Miscellanous messages")
+ field(FTVL, "CHAR")
+ field(NELM, 40)
 }
 
 record(bi, "$(INSTR)$(NAME):IS_LOWRATE")
@@ -267,9 +269,9 @@ record(aSub, "$(INSTR)$(NAME):EMULATION")
  field(FTVE, "DOUBLE")
  field(OUTF, "$(INSTR)$(NAME):IS_LOWRATE PP")
  field(FTVF, "ULONG")
- field(OUTF, "$(INSTR)$(NAME):MsgTxt PP")
- field(FTVF, "CHAR")
- field(NEVF, 40)
+ field(OUTG, "$(INSTR)$(NAME):MsgTxt PP")
+ field(FTVG, "CHAR")
+ field(NOVG, 40)
 }
 
 #######################

src/daq_soft_proton.c

@@ -153,6 +153,9 @@ static long processEmulatedCounter(struct aSubRecord *psub)
     epicsUInt32*    is_low_rate_out      = (epicsUInt32*)psub->valf;
     epicsOldString* msg_txt_out          = (epicsOldString*)psub->valg;
 
+    /* Always update the whole string */
+    psub->nevg = psub->novg = 40;
+
     /* Always no matter what, handle the rate */
     /* - Calculate average rate */
     spc->average_rate = (spc->proton_rate + spc->prev_proton_rate) / 2;
@@ -202,7 +205,7 @@ static long processEmulatedCounter(struct aSubRecord *psub)
     } else if (((spc->status == COUNTING || spc->status == LOW_RATE)
                 && spc->command_trig == PAUSE) ||
                 (spc->status == PAUSED && spc->command_trig == NONE)) {
-        strcpy(*msg_txt_out, "Stopping!");
+        strcpy(*msg_txt_out, "Paused!");
         /* We are counting or at low rate and received pause.
          * Also we are paused but have received no command, this
          * is probably slightly inaccurate but simplifies things.*/