Playing around with the initHooks.h trying to discover when different things are available and what order things are started

Makefile.RHEL8

@@ -13,7 +13,7 @@ REQUIRED+=scaler
 REQUIRED+=asynMotor
 
 # Release version
-LIBVERSION=2024-v2
+LIBVERSION=2024-ed-dev2
 
 # DB files to include in the release
 TEMPLATES += sinqEPICSApp/Db/dimetix.db
@@ -36,6 +36,7 @@ SOURCES += sinqEPICSApp/src/pmacAsynIPPort.c
 SOURCES += sinqEPICSApp/src/pmacAxis.cpp
 SOURCES += sinqEPICSApp/src/pmacController.cpp
 SOURCES += sinqEPICSApp/src/MasterMACSDriver.cpp
+SOURCES += sinqEPICSApp/src/pollerRegister.cpp
 
 USR_CFLAGS += -Wall -Wextra # -Werror
 

sinqEPICSApp/src/pmacAxis.cpp

@@ -916,6 +916,7 @@ asynStatus pmacV3Axis::poll(bool *moving) {
   sprintf(message, "%s: Polling axis: %d", functionName, this->axisNo_);
   pC_->debugFlow(message);
 
+
   // Now poll axis status
   if ((status = this->getAxisStatus(moving)) != asynSuccess) {
     asynPrint(pC_->pasynUserSelf, ASYN_TRACE_ERROR,
@@ -924,6 +925,10 @@ asynStatus pmacV3Axis::poll(bool *moving) {
               functionName, pC_->portName, axisNo_);
   }
 
+  double motorRecResolution_ = 0.;
+  pC_->getDoubleParam(this->axisNo_, pC_->motorRecResolution_, &motorRecResolution_);
+  asynPrint(pC_->pasynUserSelf, ASYN_TRACE_ERROR, "%s: Polling %f\n", functionName, motorRecResolution_);
+
   callParamCallbacks();
   return status;
 

sinqEPICSApp/src/pmacController.cpp

@@ -45,6 +45,7 @@ using std::endl;
 
 #include "pmacController.h"
 #include "pmacAxis.h"
+#include "pollerRegister.h"
 
 #define MULT 1000.
 
@@ -142,6 +143,7 @@ asynStatus pmacCreateAxis(const char *pmacName, int numAxis);
 
 }
 
+
 pmacController::pmacController(const char *portName, const char *lowLevelPortName, int lowLevelPortAddress, 
 		       int numAxes, double movingPollPeriod, double idlePollPeriod, const int& extraParams)
 : SINQController(portName, lowLevelPortName, numAxes+1, extraParams)
@@ -166,7 +168,31 @@ setIntegerParam(PMAC_C_CommsError_, 1);
 * NOTE: at this point the axis objects don't yet exist, but the poller tolerates this */
 setIntegerParam(PMAC_C_CommsError_, 0);
 }
-startPoller(movingPollPeriod, idlePollPeriod, 10);
+
+registerFunction(
+  [this](){
+    //startPoller(movingPollPeriod, idlePollPeriod, 0);
+    //
+
+    asynPrint(
+      this->pasynUserSelf,
+      ASYN_TRACE_ERROR,
+      "\n\n\n%s: status %d %d %d %d %d %d\n\n\n",
+      functionName,
+      asynSuccess,asynTimeout,asynOverflow,asynError,asynDisconnected,asynDisabled);
+
+    double motorRecResolution_ = 0.;
+    asynStatus status = this->getDoubleParam(1, this->motorRecResolution_, &motorRecResolution_);
+    asynPrint(this->pasynUserSelf, ASYN_TRACE_ERROR, "\n\n\n%s: Polling %f, status %d\n\n\n", functionName, motorRecResolution_, status);
+
+    usleep(50000); // slow down communication somewhat 
+
+    status = this->getDoubleParam(1, this->motorRecResolution_, &motorRecResolution_);
+    asynPrint(this->pasynUserSelf, ASYN_TRACE_ERROR, "\n\n\n%s: Polling %f, status %d\n\n\n", functionName, motorRecResolution_, status);
+  }
+);
+
+startPoller(movingPollPeriod, idlePollPeriod, 0);
 
 callParamCallbacks();
 
@@ -502,6 +528,8 @@ asynStatus pmacController::poll()
 
   debugFlow(functionName);
 
+  asynPrint(this->pasynUserSelf, ASYN_TRACE_ERROR, "%s: Polling\n", functionName);
+
   if (!lowLevelPortUser_) {
     setIntegerParam(this->motorStatusCommsError_, 1);
     return asynError;

sinqEPICSApp/src/pmacController.h

@@ -41,7 +41,6 @@ class pmacController : public SINQController {
   pmacAxis* getAxis(int axisNo);
   asynStatus poll();
 
-
  protected:
   pmacAxis **pAxes_;       /**< Array of pointers to axis objects */
 

sinqEPICSApp/src/pollerRegister.cpp

@@ -0,0 +1,96 @@
+#include "pollerRegister.h"
+
+#include <vector>
+#include <cstdio>
+
+#include "libComAPI.h"
+#include "initHooks.h"
+
+static std::vector<std::function<void()>> registeredFunctions;
+
+static void startPollingHook(initHookState state) {
+  switch (state) {
+    case initHookAtIocBuild:
+      printf("\n\n\ninitHookAtIocBuild\n\n\n");      
+      break;
+
+    case initHookAtBeginning:
+      printf("\n\n\ninitHookAtBeginning\n\n\n");      
+      break;
+
+    case initHookAfterCallbackInit:
+      printf("\n\n\ninitHookAfterCallbackInit\n\n\n");      
+      break;
+
+    case initHookAfterCaLinkInit:
+      printf("\n\n\ninitHookAfterCaLinkInit\n\n\n");      
+      break;
+
+    case initHookAfterInitDrvSup:
+      printf("\n\n\ninitHookAfterInitDrvSup\n\n\n");      
+      break;
+
+    case initHookAfterInitRecSup:
+      printf("\n\n\ninitHookAfterInitRecSup\n\n\n");      
+      break;
+
+    case initHookAfterInitDevSup:
+      printf("\n\n\ninitHookAfterInitDevSup\n\n\n");      
+      break;
+
+    case initHookAfterInitDatabase:
+      printf("\n\n\ninitHookAfterInitDatabase\n\n\n");      
+      break;
+
+    case initHookAfterFinishDevSup:
+      printf("\n\n\ninitHookAfterFinishDevSup\n\n\n");      
+      break;
+
+    case initHookAfterScanInit:
+      printf("\n\n\ninitHookAfterScanInit\n\n\n");      
+      break;
+
+    case initHookAfterInitialProcess:
+      printf("\n\n\ninitHookAfterInitialProcess\n\n\n");      
+      break;
+
+    case initHookAfterCaServerInit:
+      printf("\n\n\ninitHookAfterCaServerInit\n\n\n");      
+      break;
+
+    case initHookAfterIocBuilt:
+      printf("\n\n\ninitHookAfterIocBuilt\n\n\n");      
+      break;
+
+    case initHookAtIocRun:
+      printf("\n\n\ninitHookAtIocRun\n\n\n");      
+      break;
+
+    case initHookAfterDatabaseRunning:
+      printf("\n\n\ninitHookAfterDatabaseRunning\n\n\n");      
+      break;
+
+    case initHookAtEnd:
+      printf("\n\n\ninitHookAtEnd\n\n\n");
+      break;
+
+    case initHookAfterCaServerRunning:
+      printf("\n\n\ninitHookAfterCaServerRunning\n\n\n");
+      break;
+
+    case initHookAfterIocRunning:
+      printf("\n\n\ninitHookAfterIocRunning\n\n\n");      
+      for(auto&& fn : registeredFunctions)
+          fn();
+      break;
+
+    default:
+      break;
+  }
+}
+
+static int myHookStatus = initHookRegister(startPollingHook);
+
+void registerFunction(std::function<void()> func) {
+  registeredFunctions.push_back(func);
+}

sinqEPICSApp/src/pollerRegister.h

@@ -0,0 +1,8 @@
+#ifndef POLLERREGISTER
+#define POLLERREGISTER
+
+#include <functional>
+
+void registerFunction(std::function<void()> func);
+
+#endif