Changeset 6767 for trunk/psLib/src/fits/psFits.c

Timestamp:

Apr 4, 2006, 9:52:55 AM (20 years ago)

Author:

desonia

Message:

modified API to match current SDRS.

File:

• trunk/psLib/src/fits/psFits.c (modified) (6 diffs)

trunk/psLib/src/fits/psFits.c

@@ -7 +7 @@
  *  @author Robert DeSonia, MHPCC
  *
- *  @version $Revision: 1.52 $ $Name: not supported by cvs2svn $
- *  @date $Date: 2006-02-08 01:03:34 $
+ *  @version $Revision: 1.53 $ $Name: not supported by cvs2svn $
+ *  @date $Date: 2006-04-04 19:52:42 $
  *
  *  Copyright 2004-2005 Maui High Performance Computing Center, University of Hawaii
@@ -166 +166 @@
             psFits* fits = psAlloc(sizeof(psFits));
         fits->fd = fptr;
+        fits->writable = (iomode == READWRITE);
         psMemSetDeallocator(fits,(psFreeFunc)fitsFree);
 
@@ -252 +253 @@
             return false;
         }
-
-        return psFitsMoveExtNum(fits,psFitsGetSize(fits),false);
+        int size = psFitsGetSize(fits);
+        if (size == 0) { // empty file -- no action needed
+            return true;
+        } else {
+            return psFitsMoveExtNum(fits,size-1,false);
+        }
     }
 
@@ -329 +334 @@
         }
 
+        if (! fits->writable) {
+            psError(PS_ERR_IO, true,
+                    PS_ERRORTEXT_psFits_NOT_WRITABLE);
+            return false;
+        }
+
         // move to the specified HDU
         if (! psFitsMoveExtNum(fits,extnum,relative) ) {
@@ -361 +372 @@
         }
 
+        if (! fits->writable) {
+            psError(PS_ERR_IO, true,
+                    PS_ERRORTEXT_psFits_NOT_WRITABLE);
+            return false;
+        }
+
         // move to the specified HDU
         if (! psFitsMoveExtName(fits,extname) ) {
@@ -442 +459 @@
             psError(PS_ERR_BAD_PARAMETER_NULL, true,
                     PS_ERRORTEXT_psFits_NULL);
+            return PS_FITS_TYPE_NONE;
+        }
+
+        if (! fits->writable) {
+            psError(PS_ERR_IO, true,
+                    PS_ERRORTEXT_psFits_NOT_WRITABLE);
             return PS_FITS_TYPE_NONE;
         }