From a1063cbd7ddb585ac878ce431bc929a5fd8271e9 Mon Sep 17 00:00:00 2001
From: tradke <tradke@38c3d835-c875-442e-b0fe-21c19ce1d001>
Date: Fri, 28 Dec 2001 21:42:15 +0000
Subject: Fixed return codes of I/O methods.

git-svn-id: http://svn.cactuscode.org/arrangements/CactusPUGHIO/IOPanda/trunk@28 38c3d835-c875-442e-b0fe-21c19ce1d001
---
 src/Output3D.c | 72 ++++++++++++++++++++++++++++++++++++++++------------------
 1 file changed, 50 insertions(+), 22 deletions(-)

(limited to 'src')

diff --git a/src/Output3D.c b/src/Output3D.c
index 3af7864..860f96a 100644
--- a/src/Output3D.c
+++ b/src/Output3D.c
@@ -38,7 +38,7 @@ void Panda_WriteAttribute(const char *, const char *, int, int, const void *);
 static int CheckOutputVar (int vindex);
 static void CheckSteerableParameters (pandaGH *myGH);
 static void SetOutputFlag (int vindex, const char *optstring, void *arg);
-static void IOPanda_Timestep (const cGH *GH, int vindex, const char *alias);
+static int IOPanda_Timestep (const cGH *GH, int vindex, const char *alias);
 static void IOPanda_IEEEIOStructDump (const cGH *GH, const char *fname);
 static void IOPanda_AddCommonAttributes (const cGH *GH, int vindex, int timelevel, int global_size[3], char *fname);
 static void IOPanda_AddChunkAttributes (const cGH *GH, int vindex, CCTK_INT4 *geom, char *fname);
@@ -55,14 +55,20 @@ static void IOPanda_AddChunkAttributes (const cGH *GH, int vindex, CCTK_INT4 *ge
    @vtype      const cGH *
    @vio        in
    @endvar
+
+   @returntype int
+   @returndesc
+               the number of variables which were output at this iteration
+               (or 0 if it wasn't time to output yet)
+   @endreturndesc
 @@*/
 int IOPanda_Output3DGH (const cGH *GH)
 {
-  DECLARE_CCTK_PARAMETERS
-  int vindex;
+  int vindex, retval;
   char *fullname;
   const char *name;
   pandaGH *myGH;
+  DECLARE_CCTK_PARAMETERS
 
 
   /* Get the GH extension for IOPanda */
@@ -76,7 +82,7 @@ int IOPanda_Output3DGH (const cGH *GH)
   }
 
   /* Loop over all variables */
-  for (vindex = 0; vindex < CCTK_NumVars (); vindex++)
+  for (vindex = retval = 0; vindex < CCTK_NumVars (); vindex++)
   {
     if (IOPanda_TimeFor3D (GH, vindex))
     {
@@ -91,14 +97,16 @@ int IOPanda_Output3DGH (const cGH *GH)
       }
 
       /* Do the 3D output */
-      IOPanda_Timestep (GH, vindex, name);
-
-      /* Register variable as having 3D output this iteration */
-      myGH->out3D_last [vindex] = GH->cctk_iteration;
+      if (IOPanda_Timestep (GH, vindex, name) == 0)
+      {
+        /* Register variable as having 3D output this iteration */
+        myGH->out3D_last [vindex] = GH->cctk_iteration;
+        retval++;
+      }
     }
   }
 
-  return (0);
+  return (retval);
 }
 
 
@@ -127,13 +135,18 @@ int IOPanda_Output3DGH (const cGH *GH)
    @vtype      const char *
    @vio        in
    @endvar
+
+   @returntype int
+   @returndesc
+               return code of @seeroutine IOPanda_Timestep
+   @endreturndesc
 @@*/
 int IOPanda_Output3DVarAs (const cGH *GH,
                            const char *fullname,
                            const char *alias)
 {
+  int vindex, retval;
   DECLARE_CCTK_PARAMETERS
-  int vindex;
 
 
   vindex = CCTK_VarIndex(fullname);
@@ -146,9 +159,9 @@ int IOPanda_Output3DVarAs (const cGH *GH,
   }
 
   /* Do the 3D output */
-  IOPanda_Timestep (GH, vindex, alias);
+  retval = IOPanda_Timestep (GH, vindex, alias);
 
-  return (0);
+  return (retval);
 }
 
 
@@ -171,6 +184,12 @@ int IOPanda_Output3DVarAs (const cGH *GH,
    @vtype      int
    @vio        in
    @endvar
+
+   @returntype int
+   @returndesc
+               1 if output should take place at this iteration, or<BR>
+               0 if not
+   @endreturndesc
 @@*/
 int IOPanda_TimeFor3D (const cGH *GH,
                        int vindex)
@@ -229,13 +248,19 @@ int IOPanda_TimeFor3D (const cGH *GH,
    @vtype      int
    @vio        in
    @endvar
+
+   @returntype int
+   @returndesc
+               return code of @seeroutine IOPanda_Timestep
+   @endreturndesc
 @@*/
 int IOPanda_TriggerOutput3D (const cGH *GH,
                              int vindex)
 {
-  DECLARE_CCTK_PARAMETERS
+  int retval;
   pandaGH *myGH;
   const char *varname;
+  DECLARE_CCTK_PARAMETERS
 
 
   varname = CCTK_VarName (vindex);
@@ -250,12 +275,15 @@ int IOPanda_TriggerOutput3D (const cGH *GH,
   }
 
   /* Do the 3D output */
-  IOPanda_Timestep (GH, vindex, varname);
+  retval = IOPanda_Timestep (GH, vindex, varname);
 
-  /* Register variable as having 3D output this iteration */
-  myGH->out3D_last [vindex] = GH->cctk_iteration;
+  if (retval == 0)
+  {
+    /* Register variable as having 3D output this iteration */
+    myGH->out3D_last [vindex] = GH->cctk_iteration;
+  }
 
-  return (0);
+  return (retval);
 }
 
 
@@ -347,11 +375,8 @@ static void SetOutputFlag (int vindex,
 }
 
 
-static void IOPanda_Timestep (const cGH *GH,
-                              int vindex,
-                              const char *alias)
+static int IOPanda_Timestep (const cGH *GH, int vindex, const char *alias)
 {
-  DECLARE_CCTK_PARAMETERS
   void *data;
   int tmp[1], tmp1[3], tmp2[3];
   Distribution dist1[3], dist2[3];
@@ -365,6 +390,7 @@ static void IOPanda_Timestep (const cGH *GH,
     char *non_const_char;
     const char *const_char;
   } cast_to_const;
+  DECLARE_CCTK_PARAMETERS
 
 
   /* prevent compiler warning "cast discards `const' from pointer target type"*/
@@ -379,7 +405,7 @@ static void IOPanda_Timestep (const cGH *GH,
     CCTK_VWarn (2, __LINE__, __FILE__, CCTK_THORNSTRING,
                 "No IOPanda 3D output for '%s' (no storage)", fullname);
     free (fullname);
-    return;
+    return (-1);
   }
 
   /* get the handles for PUGH and IOUtil GH extensions */
@@ -467,6 +493,8 @@ static void IOPanda_Timestep (const cGH *GH,
   {
     IOPanda_IEEEIOStructDump(GH, ainfo.name_);
   }
+
+  return (0);
 }
 
 
-- 
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