From 4505ff65b06407757e1c547a91e83226f7b4c1b2 Mon Sep 17 00:00:00 2001
From: tradke <tradke@b32723a9-ab3a-4a60-88e2-2e5d99d7c17a>
Date: Tue, 21 Apr 2009 00:35:29 +0000
Subject: extend IOUtil_ParseVarsForOutput() to parse an options string for a
 list of reductions (to be used in scalar output methods) This applies patch
 http://www.cactuscode.org/old/pipermail/patches/2009-April/000259.html.

git-svn-id: http://svn.cactuscode.org/arrangements/CactusBase/IOUtil/trunk@269 b32723a9-ab3a-4a60-88e2-2e5d99d7c17a
---
 src/Utils.c        | 26 ++++++++++++++++++++++++++
 src/ioutil_Utils.h |  3 +++
 2 files changed, 29 insertions(+)

diff --git a/src/Utils.c b/src/Utils.c
index dfb3a8c..23ebba8 100644
--- a/src/Utils.c
+++ b/src/Utils.c
@@ -151,6 +151,7 @@ void IOUtil_ParseVarsForOutput (const cGH *GH, const char *method_name,
 @@*/
 void IOUtil_FreeIORequest (ioRequest **request)
 {
+  free ((*request)->reductions);
   free ((*request)->vectors);
   free (*request);
   *request = NULL;
@@ -1031,6 +1032,30 @@ static void SetOutputVar (int vindex, const char *optstring, void *arg)
       Util_TableDeleteKey (table, "compression_level");
     }
 
+    /* check for option 'reductions' */
+    if (Util_TableQueryValueInfo (table, &type, &nelems,
+                                  "reductions") > 0)
+    {
+      request->reductions = NULL;
+      if (type == CCTK_VARIABLE_CHAR && nelems >= 0)
+      {
+        request->reductions = malloc (nelems + 1);
+        Util_TableGetString (table, nelems + 1, request->reductions,
+                             "reductions");
+      }
+      else
+      {
+        CCTK_VWarn (1, __LINE__, __FILE__, CCTK_THORNSTRING,
+                    "Invalid value for option 'reductions' in option "
+                    "string '%s' in parameter '%s' (must be a string)",
+                    optstring, info->parameter_name);
+        CCTK_VWarn (1, __LINE__, __FILE__, CCTK_THORNSTRING,
+                    "Option 'reductions' will be ignored for %s output "
+                    "of variable '%s'", info->method_name, fullname);
+      }
+      Util_TableDeleteKey (table, "compression_level");
+    }
+
     /* warn about unrecognized options */
     iterator = Util_TableItCreate (table);
     for (iterator = Util_TableItCreate (table);
@@ -1097,6 +1122,7 @@ ioRequest *IOUtil_DefaultIORequest (const cGH *GH, int vindex,
   request->check_exist = myGH->recovered;
   request->out_every = out_every_default;
   request->out_unchunked = out_unchunked;
+  request->reductions = NULL;
   request->with_ghostzones = 0;
   request->refinement_levels = -1;
   request->compression_level = -1;
diff --git a/src/ioutil_Utils.h b/src/ioutil_Utils.h
index 655ee7d..3840e65 100644
--- a/src/ioutil_Utils.h
+++ b/src/ioutil_Utils.h
@@ -57,6 +57,9 @@ typedef struct
   /* bitmask for refinement levels to output */
   CCTK_INT refinement_levels;
 
+  /* list of reductions to output */
+  char *reductions;
+
 } ioRequest;
 
 
-- 
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