trying to incorporate some of the stepwise solution functionality into the regular epanet toolkit functions.

src/epanet.c

@@ -742,7 +742,8 @@ int DLLEXPORT ENopenQ()
    OpenQflag = FALSE;
    SaveQflag = FALSE;
    if (!Openflag) return(102);
-   if (!SaveHflag) return(104);
+  // !LT! todo - check for SaveHflag / set sequential/step mode
+  //if (!SaveHflag) return(104);
 
 /* Open WQ solver */
    ERRCODE(openqual());

src/quality.c

@@ -188,7 +188,10 @@ void  initqual()
    Wsource = 0.0;
 
    /* Re-position hydraulics file */
-   fseek(HydFile,HydOffset,SEEK_SET);
+  if (!OpenHflag) {
+    fseek(HydFile,HydOffset,SEEK_SET);
+  }
+   
 
    /* Set elapsed times to zero */
    Htime = 0;
@@ -220,7 +223,9 @@ int runqual(long *t)
    if (Qtime == Htime)
    {
       errcode = gethyd(&hydtime, &hydstep);
-      Htime = hydtime + hydstep;
+      if (!OpenHflag) { // test for sequential vs stepwise
+        Htime = hydtime + hydstep;
+      }
    }
    return(errcode);
 }
@@ -343,10 +348,14 @@ int  gethyd(long *hydtime, long *hydstep)
 {
    int errcode = 0;
 
-   /* Read hydraulic results from file */
+  // if hydraulics are not open, then we're operating in sequential mode.
-   if (!readhyd(hydtime)) return(307);
+  // else hydraulics are open, so use the hydraulic results in memory rather than reading from the temp file.
-   if (!readhydstep(hydstep)) return(307);
+  if (!OpenHflag) {
-   Htime = *hydtime;
+    /* Read hydraulic results from file */
+    if (!readhyd(hydtime)) return(307);
+    if (!readhydstep(hydstep)) return(307);
+    Htime = *hydtime;
+  }
 
    /* Save current results to output file */
    if (Htime >= Rtime)
@@ -1067,7 +1076,10 @@ void  tankmix1(int i, long dt)
    /* Determine tank & volumes */
    vold = Tank[i].V;
    n = Tank[i].Node;
-   Tank[i].V += D[n]*dt;
+  if (!OpenHflag) {
+    Tank[i].V += D[n]*dt;
+  }
+   
    vin  = VolIn[n];
 
    /* Compute inflow concen. */

src/testLemonTiger.cpp

@@ -1,11 +1,12 @@
 
 #include "testLemonTiger.h"
-#include "epanet2.h"
+#include "toolkit.h"
 
 
 using namespace std;
 
 void checkErr(int err, std::string function);
+void stats();
 
 int main(int argc, char * argv[]) {
   
@@ -15,44 +16,63 @@ int main(int argc, char * argv[]) {
   
   long tstep = 0;
   long simulationTime = 0;
-  long nextEventH = 0;
+  long nextEventH = 0, nextEventQ = 0;
   long simTimeRemaining = 0;
   
   try {
     
     /*  Batch solver (old epanet) */
     cout << "*****Original EPANET results******" << endl;
-    checkErr( ENopen(argv[1], argv[2], ""), "ENopen" );
+    checkErr( ENopen(argv[1], argv[2], "out.bin"), "ENopen" );
     
     checkErr( ENopenH(), "ENopenH" );
     checkErr( ENinitH(EN_SAVE), "ENinitH" );
     
+    cout << "Running hydraulics..." << endl;
     do {
+      
       /* Solve for hydraulics & advance to next time period */
       tstep = 0;
+      
       checkErr( ENrunH(&simulationTime), "ENrunH" );
       checkErr( ENnextH(&nextEventH), "ENnextH" );
       
+      stats();
+      
       // gather hydraulic results
       
     } while (nextEventH > 0);
     // hydraulics are done
     checkErr( ENcloseH(), "ENcloseH" );
-    
+    cout << "\t\t\tdone." << endl;
     cout << "Running WQ..." << endl;
     
     checkErr( ENopenQ(), "ENopenQ" );
     checkErr( ENinitQ(EN_SAVE), "ENinitQ" );
     
     do {
+      //long htime;
+      
+      //ENgettimeparam(EN_HTIME, &htime);
+      //cout << "Htime = " << htime << endl;
+      
       checkErr( ENrunQ(&simulationTime), "ENrunQ" );
-      checkErr( ENstepQ(&simTimeRemaining), "ENstepQ" );
+      
+      //ENgettimeparam(EN_HTIME, &htime);
+      //cout << "Htime = " << htime << endl;
+      
+      checkErr( ENnextQ(&nextEventH), "ENstepQ" );
+      
+      //ENgettimeparam(EN_HTIME, &htime);
+      //cout << "Htime = " << htime << endl;
       
       // wq results
+      //cout << simulationTime << "\t\t" << nextEventH << endl;
       
-    } while (simTimeRemaining > 0);
+    } while (nextEventH > 0);
     // water quality is done
     checkErr( ENcloseQ(), "ENcloseQ" );
+    cout << "\t\t\tdone." << endl;
 
     // everything is done
     checkErr( ENclose(), "ENclose" );
@@ -65,27 +85,34 @@ int main(int argc, char * argv[]) {
     /* stepwise solver (LemonTiger) */
     cout << "*****LemonTiger results******" << endl;
     
-    checkErr( ENopen(argv[1], argv[2], NULL), "ENopen" );
+    checkErr( ENopen(argv[1], argv[2], "out2.bin"), "ENopen" );
     
     checkErr( ENopenH(), "ENopenH" );
-    checkErr( ENinitH(EN_SAVE), "ENinitH" );
+    checkErr( ENinitH(EN_NOSAVE), "ENinitH" );
     checkErr( ENopenQ(), "ENopenQ" );
-    checkErr( ENinitQ(EN_SAVE), "ENinitQ" );
+    checkErr( ENinitQ(EN_NOSAVE), "ENinitQ" );
     
+    cout << "Running stepwise hydraulics and water quality..." << endl;
     do {
       /* Solve for hydraulics & advance to next time period */
       tstep = 0;
+      
       checkErr( ENrunH(&simulationTime), "ENrunH" );
-      checkErr( ENnextH(&nextEventH), "ENnextH" );
-      
-      // hydraulic results
-      
       checkErr( ENrunQ(&simulationTime), "ENrunQ" );
-      checkErr( ENstepQ(&simTimeRemaining), "ENstepQ" );
+      
+      //stats();
+      
+      checkErr( ENnextH(&nextEventH), "ENnextH" );
+      checkErr( ENnextQ(&nextEventQ), "ENstepQ" );
+      
+      stats();
       
       // wq results
+      //cout << simulationTime << "\t\t" << nextEventH << endl;
+      
+    } while (nextEventH > 0);
+    cout << "\t\t\tdone." << endl;
     
-    } while (simTimeRemaining > 0);
     // all done
     checkErr( ENcloseH(), "ENcloseH" );
     checkErr( ENcloseQ(), "ENcloseQ" );
@@ -99,6 +126,17 @@ int main(int argc, char * argv[]) {
 
 
 
+void stats() {
+  long htime;
+  int nodeIndex;
+  float head, volume;
+  ENgettimeparam(EN_HTIME, &htime);
+  ENgetnodeindex((char*)"1", &nodeIndex);
+  ENgetnodevalue(nodeIndex, EN_HEAD, &head);
+  cout << htime << "\t\t" << head << endl;
+}
+
+
 
 void checkErr(int err, std::string function) {
   if (err > 0) {

test/Net3.inp

@@ -331,7 +331,7 @@ Link 330 OPEN IF Node 1 ABOVE 19.1
 ;Tank            	Model
 
 [TIMES]
- Duration           	24:00 
+ Duration           	6:00 
  Hydraulic Timestep 	1:00 
  Quality Timestep   	0:05 
  Pattern Timestep   	1:00