[svn-r329] Changes since 19980324

----------------------

./src/H5D.c
	Zero element requests for H5Dread() and H5Dwrite() succeed.

./src/H5F.c
./src/H5Fprivate.h
	All files will have a root group. This greatly simplifies the
	library at the expense of ~1k extra bytes in files that have
	only one object.

./src/H5D.c
./src/H5Dprivate.h
./html/Groups.html
	Functions that used to take a file ID and an object name can
	now take a group ID instead of a file ID.  This doesn't change
	the API, only it's documentation.

./src/H5G.c
./src/H5Gprivate.h
./src/H5O.c
./src/H5Oprivate.h
	Removed extra file arguments from some internal functions
	since the file pointer can be found from the group pointer or
	a symbol table entry (ent->file or H5G_fileof(group)).
	Besides, when we eventually implement mounting one file on
	another, H5G_namei() might return a different file than what
	you gave it, and that file is part of the returned symbol
	table entry.

./src/H5G.c
	Fixed bug with `.' appearing in a name. It used to hang the
	library.

./src/Makefile.in
./src/h5ls.c		[NEW]
./MANIFEST
	Added `h5ls' a simple program that takes a file name and a
	directory and lists the contents of that directory using
	H5Giterate().

./test/istore.c
	Changed an argument to H5G_create().

./test/tstab.c
	Removed test_1 which was testing that files with a single
	object don't have a root group.  This no longer applies.

1 files changed, 6 insertions, 4 deletions

diff --git a/src/H5O.c b/src/H5O.c
index af9ec82..bf60b09 100644
--- a/src/H5O.c
+++ b/src/H5O.c
@@ -147,6 +147,7 @@ H5O_create(H5F_t *f, size_t size_hint, H5G_entry_t *ent/*out*/)
 
     /* allocate disk space for header and first chunk */
     size = H5O_SIZEOF_HDR(f) + size_hint;
+    ent->file = f;
     if (H5MF_alloc(f, H5MF_META, size, &(ent->header)/*out*/) < 0) {
 	HRETURN_ERROR(H5E_RESOURCE, H5E_NOSPACE, FAIL,
 		      "unable to allocate file space for object header hdr");
@@ -190,12 +191,13 @@ H5O_create(H5F_t *f, size_t size_hint, H5G_entry_t *ent/*out*/)
     }
 
     /* open it */
-    if (H5O_open(f, ent) < 0) {
+    if (H5O_open(ent) < 0) {
 	HRETURN_ERROR(H5E_OHDR, H5E_CANTOPENOBJ, FAIL,
 		      "unable to open object header");
     }
     FUNC_LEAVE(SUCCEED);
 }
+
 
 /*-------------------------------------------------------------------------
  * Function:	H5O_open
@@ -215,13 +217,13 @@ H5O_create(H5F_t *f, size_t size_hint, H5G_entry_t *ent/*out*/)
  *-------------------------------------------------------------------------
  */
 herr_t
-H5O_open(H5F_t *f, H5G_entry_t *obj_ent)
+H5O_open(H5G_entry_t *obj_ent)
 {
     FUNC_ENTER(H5O_open, FAIL);
 
     /* Check args */
-    assert(f);
     assert(obj_ent);
+    assert(obj_ent->file);
 
 #ifdef H5O_DEBUG
     fprintf(stderr, ">");
@@ -230,10 +232,10 @@ H5O_open(H5F_t *f, H5G_entry_t *obj_ent)
 #endif
 
     /* Increment open-lock counters */
-    obj_ent->file = f;
     obj_ent->file->nopen++;
     FUNC_LEAVE(SUCCEED);
 }
+
 
 /*-------------------------------------------------------------------------
  * Function:	H5O_close