[svn-r44] ./src/H5D.c

	I commented out a bunch of code in H5D_flush() so I could
	compile and link the test cases.  If you commit your changes
	to that file, whatever they may be, I'll change H5D_flush() to
	use the new directory functions described below...

./src/H5G.c
	H5G_namei()
	-----------
	Understands files without directories. The root object
	(directory or not) can be found by asking for `/' (or any
	equivalent absolute or relative name like `/.//.///' or
	`.//.///' (if the cwd is the root)) or by name like `/foo' (or
	any other equivalent absolute or relative name) if the object
	has a name message with the value `foo'.  This function is
	used by most of the other H5G functions so they now understand
	directory-less files too.

	H5G_new()
	---------
	Creates the root directory implicitly if it doesn't already
	exist, moving any previous non-directory root object into the
	new root directory before creating the requested directory
	within the root.  The creation of the root directory happens
	first, regardless of whether the requested directory creation
	succeeds.  Once the root directory is created it never
	disappears even if the file later has only one object.  This
	"feature" can be used to force a file to have a root directory
	by saying something like:

	  H5G_new (..., "/", ...);
	  H5ECLEAR; /*we don't care about the H5E_EXISTS failure*/

	The H5G_new() in the previous example fails because the root
	directory is created implicitly before we attempt to create
	the requested "/" directory.

	H5G_find()
	----------
	Understands files without directories.  If there is no root
	object then this function is guaranteed to fail even if the
	request is for `/'.  As mentioned for H5G_namei(), the root
	object can be retrieved with `/' or `/foo' (or equivalent
	absolute or relative names).

	H5G_insert()
	------------
	Understands files without directories and attempts to create
	such files when there is only one object.  The root symbol
	table is created implicitly when necessary.

	A root object can be given a name message by the caller and
	then inserted with the name `/' or it can be inserted with
	the name `/foo' in which case H5G_insert() will set the name
	message to `foo'.

	H5G_modify()
	------------
	Understands files without directories.

./src/H5Fprivate.h
	Removed the root_type field from hdf5_file_t.

./src/H5Fprivate.h
./src/H5F.c
	Removed H5F_root_type()

./src/H5Fpublic.h
	Removed H5F_root_symtype_t.

./src/H5Oprivate.h
./src/H5O.c
	Added H5O_remove() which is currently a no-op.

1 files changed, 30 insertions, 27 deletions

diff --git a/src/H5Oprivate.h b/src/H5Oprivate.h
index 34acff9..43aace9 100644
--- a/src/H5Oprivate.h
+++ b/src/H5Oprivate.h
@@ -28,6 +28,7 @@
 #define H5O_NCHUNKS	8		/*initial number of chunks	*/
 #define H5O_NEW_MESG	(-1)		/*new message			*/
 #define H5O_NO_ADDR	(-1)		/*no disk address yet		*/
+#define H5O_ALL		(-1)		/*delete all messages of type	*/
 
 #define H5O_VERSION	1
 #define H5O_ALIGNMENT	4
@@ -90,13 +91,39 @@ typedef struct H5O_t {
 extern const H5O_class_t H5O_NULL[1];
 
 /*
+ * Simple Dimensionality message.
+ */
+#define H5O_SIM_DIM_ID	0x0001
+extern const H5O_class_t H5O_SIM_DIM[1];
+
+typedef struct {
+    uint32 rank;        /* Number of dimensions */
+    uint32 dim_flags;   /* Dimension flags */
+    uint32 *size;       /* Dimension sizes */
+    uint32 *max;        /* Maximum dimension sizes */
+    uint32 *perm;       /* Dimension permutations */
+} H5O_sim_dim_t;
+
+/*
+ * Simple Datatype message.
+ */
+#define H5O_SIM_DTYPE_ID	0x0003
+extern const H5O_class_t H5O_SIM_DTYPE[1];
+
+typedef struct {
+    uint8 length;   /* Number of bytes */
+    uint8 arch;     /* Architecture format of the data */
+    hatom_t type;   /* Type of the data */
+} H5O_sim_dtype_t;
+
+/*
  * Object name message.
  */
 #define H5O_NAME_ID	0x000d
 extern const H5O_class_t H5O_NAME[1];
 
 typedef struct H5O_name_t {
-   char		*s;			/*ptr to malloc'd memory	*/
+   const char	*s;			/*ptr to malloc'd memory	*/
 } H5O_name_t;
 
 /*
@@ -124,32 +151,6 @@ typedef struct H5O_stab_t {
    haddr_t	heap;			/*address of name heap		*/
 } H5O_stab_t;
 
-/*
- * Simple Datatype message.
- */
-#define H5O_SIM_DTYPE_ID	0x0003
-extern const H5O_class_t H5O_SIM_DTYPE[1];
-
-typedef struct {
-    uint8 length;   /* Number of bytes */
-    uint8 arch;     /* Architecture format of the data */
-    hatom_t type;   /* Type of the data */
-} H5O_sim_dtype_t;
-
-/*
- * Simple Dimensionality message.
- */
-#define H5O_SIM_DIM_ID	0x0001
-extern const H5O_class_t H5O_SIM_DIM[1];
-
-typedef struct {
-    uint32 rank;        /* Number of dimensions */
-    uint32 dim_flags;   /* Dimension flags */
-    uint32 *size;       /* Dimension sizes */
-    uint32 *max;        /* Maximum dimension sizes */
-    uint32 *perm;       /* Dimension permutations */
-} H5O_sim_dim_t;
-
 
 
 haddr_t H5O_new (hdf5_file_t *f, intn nlink, size_t size_hint);
@@ -161,6 +162,8 @@ const void *H5O_peek (hdf5_file_t *f, haddr_t addr, const H5O_class_t *type,
 intn H5O_modify (hdf5_file_t *f, haddr_t addr, H5G_entry_t *ent,
 		 hbool_t *ent_modified, const H5O_class_t *type,
 		 intn overwrite, const void *mesg);
+herr_t H5O_remove (hdf5_file_t *f, haddr_t addr, H5G_entry_t *ent,
+		   const H5O_class_t *type, intn sequence);
 herr_t H5O_reset (const H5O_class_t *type, void *native);
 herr_t H5O_debug (hdf5_file_t *f, haddr_t addr, FILE *stream,
 		  intn indent, intn fwidth);